flyway iq
Last checked Source status & dates ↗

Otter Slough history

593 collected MDC area reports · 10 seasons available. Switch among 18 Missouri areas below.

Historical area totals. Hunt dates are unconfirmed; weather and river matches are tentative. Location coverage is partial; only separately collected dated kill boards provide pool or blind results. Duck-species detail is unavailable. This snapshot does not establish current conditions or access.

Ducks reported
12,208
Hunters reported
5,205
Ducks per hunter
2.35

61 report dates · 61 reports · 61 comparable · 0 excluded.

Coverage, calculations & collection dates

Totals use comparable reports. Per hunter = summed ducks ÷ summed hunters. Population surveys are not harvest counts. Collected Oct 31, 2026; the latest advertised and current seasons are checked daily; older archives retain their original collection dates. Older seasons before 2021–22 have harvest only; weather, forecasts and river matches are unavailable in this package.

Harvest per hunter · ducks / hunter

0.81–5.3261 days

0.815.32
Oct 1Jan 31

Mean temperature · °F · tentative date match

21°–68°61 days

21°68°
Oct 1Jan 31
River-flow charts & limitations

These USGS river measurements are regional proxies, not hunting-pool depth. Their dates are tentatively matched to MDC report dates. Separate gauges retain their own units and series.

River observations are unavailable for this area and season.

Daily reports · 2025–26

Expand a date for weather, gauge readings and its source record. Dates identify MDC reports; they are not confirmed hunt dates.

Oct 25, 2025Ducks: 110Hunters: 42
Detailed observations, archived forecast & source

Ducks per hunter: 2.62. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 61.2°F mean; 6.1 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-10-25T00:00Z for 2025-10-25T12:00Z–2025-10-25T15:00Z. 53°F; 5.5 knots; 2 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41168. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Oct 26, 2025Ducks: 94Hunters: 54
Detailed observations, archived forecast & source

Ducks per hunter: 1.74. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 1. These are separate from the duck count.

Historical weather observation · tentative report-date match: 55.4°F mean; 7.3 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-10-26T00:00Z for 2025-10-26T12:00Z–2025-10-26T15:00Z. 54°F; 11 knots; 2 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41169. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 1, 2025Ducks: 327Hunters: 89
Detailed observations, archived forecast & source

Ducks per hunter: 3.67. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 49.6°F mean; 4.2 mph mean wind. Station USW00003817; 70 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-01T00:00Z for 2025-11-01T12:00Z–2025-11-01T15:00Z. 52°F; 3 knots; 2 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41170. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 2, 2025Ducks: 123Hunters: 84
Detailed observations, archived forecast & source

Ducks per hunter: 1.46. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 45.1°F mean; 2.7 mph mean wind. Station USW00003817; 74 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-02T00:00Z for 2025-11-02T12:00Z–2025-11-02T15:00Z. 44.5°F; 4.5 knots; 2 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41171. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 3, 2025Ducks: 178Hunters: 86
Detailed observations, archived forecast & source

Ducks per hunter: 2.07. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 50.2°F mean; 4.6 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-03T00:00Z for 2025-11-03T12:00Z–2025-11-03T15:00Z. 45.5°F; 5 knots; 2 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41172. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 4, 2025Ducks: 165Hunters: 75
Detailed observations, archived forecast & source

Ducks per hunter: 2.2. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 55.9°F mean; 7.9 mph mean wind. Station USW00003817; 68 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-04T00:00Z for 2025-11-04T12:00Z–2025-11-04T15:00Z. 51°F; 4.5 knots; 2 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41173. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 5, 2025Ducks: 155Hunters: 77
Detailed observations, archived forecast & source

Ducks per hunter: 2.01. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 59.4°F mean; 6 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-05T00:00Z for 2025-11-05T12:00Z–2025-11-05T15:00Z. 54°F; 9.5 knots; 2 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41174. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 6, 2025Ducks: 136Hunters: 82
Detailed observations, archived forecast & source

Ducks per hunter: 1.66. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 58.6°F mean; 6.6 mph mean wind. Station USW00003817; 69 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-06T00:00Z for 2025-11-06T12:00Z–2025-11-06T15:00Z. 52°F; 7 knots; 2 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41175. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 7, 2025Ducks: 180Hunters: 85
Detailed observations, archived forecast & source

Ducks per hunter: 2.12. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 62.9°F mean; 7.6 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-07T00:00Z for 2025-11-07T12:00Z–2025-11-07T15:00Z. 62°F; 11 knots; 2 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41176. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 8, 2025Ducks: 72Hunters: 89
Detailed observations, archived forecast & source

Ducks per hunter: 0.81. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 59.3°F mean; 4.2 mph mean wind. Station USW00003817; 69 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-08T06:00Z for 2025-11-08T12:00Z–2025-11-08T15:00Z. 56°F; 1 knots; 2 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41177. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 9, 2025Ducks: 254Hunters: 88
Detailed observations, archived forecast & source

Ducks per hunter: 2.89. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 43.6°F mean; 13.7 mph mean wind. Station USW00003817; 70 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-09T06:00Z for 2025-11-09T15:00Z–2025-11-09T15:00Z. 44°F; 17 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41178. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 15, 2025Ducks: 447Hunters: 84
Detailed observations, archived forecast & source

Ducks per hunter: 5.32. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 64.6°F mean; 12.4 mph mean wind. Station USW00003817; 70 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-15T06:00Z for 2025-11-15T15:00Z–2025-11-15T15:00Z. 65°F; 14 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41179. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 16, 2025Ducks: 328Hunters: 87
Detailed observations, archived forecast & source

Ducks per hunter: 3.77. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 57.1°F mean; 6.8 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-16T06:00Z for 2025-11-16T15:00Z–2025-11-16T15:00Z. 59°F; 10 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41180. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 17, 2025Ducks: 202Hunters: 75
Detailed observations, archived forecast & source

Ducks per hunter: 2.69. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 54.5°F mean; 5.8 mph mean wind. Station USW00003817; 69 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-17T06:00Z for 2025-11-17T15:00Z–2025-11-17T15:00Z. 52°F; 7 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41181. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 18, 2025Ducks: 220Hunters: 83
Detailed observations, archived forecast & source

Ducks per hunter: 2.65. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 1 · WFG: 2. These are separate from the duck count.

Historical weather observation · tentative report-date match: 67.6°F mean; 14.1 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-18T06:00Z for 2025-11-18T15:00Z–2025-11-18T15:00Z. 61°F; 13 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41182. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 19, 2025Ducks: 240Hunters: 81
Detailed observations, archived forecast & source

Ducks per hunter: 2.96. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 1. These are separate from the duck count.

Historical weather observation · tentative report-date match: 53.7°F mean; 6 mph mean wind. Station USW00003817; 70 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-19T06:00Z for 2025-11-19T15:00Z–2025-11-19T15:00Z. 56°F; 5 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41183. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 20, 2025Ducks: 205Hunters: 79
Detailed observations, archived forecast & source

Ducks per hunter: 2.59. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 55.6°F mean; 5.2 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-20T06:00Z for 2025-11-20T15:00Z–2025-11-20T15:00Z. 56°F; 6 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41184. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 21, 2025Ducks: 192Hunters: 90
Detailed observations, archived forecast & source

Ducks per hunter: 2.13. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 62.2°F mean; 5.2 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-21T06:00Z for 2025-11-21T15:00Z–2025-11-21T15:00Z. 61°F; 4 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41185. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 22, 2025Ducks: 140Hunters: 94
Detailed observations, archived forecast & source

Ducks per hunter: 1.49. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 1. These are separate from the duck count.

Historical weather observation · tentative report-date match: 55.4°F mean; 6.1 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-22T06:00Z for 2025-11-22T15:00Z–2025-11-22T15:00Z. 57°F; 7 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41186. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 23, 2025Ducks: 150Hunters: 84
Detailed observations, archived forecast & source

Ducks per hunter: 1.79. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 50.8°F mean; 3.6 mph mean wind. Station USW00003817; 68 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-23T06:00Z for 2025-11-23T15:00Z–2025-11-23T15:00Z. 52°F; 3 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41187. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 24, 2025Ducks: 158Hunters: 84
Detailed observations, archived forecast & source

Ducks per hunter: 1.88. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 2 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 50.7°F mean; 5.4 mph mean wind. Station USW00003817; 69 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-24T06:00Z for 2025-11-24T15:00Z–2025-11-24T15:00Z. 52°F; 4 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41188. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 25, 2025Ducks: 140Hunters: 92
Detailed observations, archived forecast & source

Ducks per hunter: 1.52. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 56.5°F mean; 6 mph mean wind. Station USW00003817; 69 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-25T06:00Z for 2025-11-25T15:00Z–2025-11-25T15:00Z. 57°F; 4 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41189. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 26, 2025Ducks: 215Hunters: 82
Detailed observations, archived forecast & source

Ducks per hunter: 2.62. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 1. These are separate from the duck count.

Historical weather observation · tentative report-date match: 45.4°F mean; 11.6 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-26T06:00Z for 2025-11-26T15:00Z–2025-11-26T15:00Z. 44°F; 16 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41190. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 27, 2025Ducks: 134Hunters: 80
Detailed observations, archived forecast & source

Ducks per hunter: 1.68. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 2 · WFG: 1. These are separate from the duck count.

Historical weather observation · tentative report-date match: 40.4°F mean; 6.2 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-27T06:00Z for 2025-11-27T15:00Z–2025-11-27T15:00Z. 40°F; 10 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41191. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 28, 2025Ducks: 150Hunters: 88
Detailed observations, archived forecast & source

Ducks per hunter: 1.7. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 1 · WFG: 3. These are separate from the duck count.

Historical weather observation · tentative report-date match: 37°F mean; 2.9 mph mean wind. Station USW00003817; 70 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-28T06:00Z for 2025-11-28T15:00Z–2025-11-28T15:00Z. 36°F; 5 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41192. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 29, 2025Ducks: 214Hunters: 81
Detailed observations, archived forecast & source

Ducks per hunter: 2.64. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 4 · WFG: 1. These are separate from the duck count.

Historical weather observation · tentative report-date match: 42.4°F mean; 11.7 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-29T06:00Z for 2025-11-29T15:00Z–2025-11-29T15:00Z. 40°F; 10 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41193. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Nov 30, 2025Ducks: 165Hunters: 96
Detailed observations, archived forecast & source

Ducks per hunter: 1.72. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 2 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 35.2°F mean; 10.8 mph mean wind. Station USW00003817; 70 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-11-30T06:00Z for 2025-11-30T15:00Z–2025-11-30T15:00Z. 33°F; 12 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41194. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 1, 2025Ducks: 226Hunters: 79
Detailed observations, archived forecast & source

Ducks per hunter: 2.86. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 5 · WFG: 1. These are separate from the duck count.

Historical weather observation · tentative report-date match: 30.8°F mean; 7.8 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-01T06:00Z for 2025-12-01T15:00Z–2025-12-01T15:00Z. 31°F; 6 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41195. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 2, 2025Ducks: 200Hunters: 94
Detailed observations, archived forecast & source

Ducks per hunter: 2.13. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 1 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 31.7°F mean; 5.6 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-02T06:00Z for 2025-12-02T15:00Z–2025-12-02T15:00Z. 28°F; 7 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41196. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 3, 2025Ducks: 165Hunters: 88
Detailed observations, archived forecast & source

Ducks per hunter: 1.88. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 18 · WFG: 2. These are separate from the duck count.

Historical weather observation · tentative report-date match: 32.4°F mean; 4.8 mph mean wind. Station USW00003817; 70 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-03T06:00Z for 2025-12-03T15:00Z–2025-12-03T15:00Z. 30°F; 5 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41197. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 4, 2025Ducks: 231Hunters: 78
Detailed observations, archived forecast & source

Ducks per hunter: 2.96. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 8 · WFG: 2. These are separate from the duck count.

Historical weather observation · tentative report-date match: 31.5°F mean; 9.1 mph mean wind. Station USW00003817; 69 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-04T06:00Z for 2025-12-04T15:00Z–2025-12-04T15:00Z. 32°F; 11 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41198. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 5, 2025Ducks: 216Hunters: 87
Detailed observations, archived forecast & source

Ducks per hunter: 2.48. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 12 · WFG: 1. These are separate from the duck count.

Historical weather observation · tentative report-date match: 30.3°F mean; 4.7 mph mean wind. Station USW00003817; 70 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-05T06:00Z for 2025-12-05T15:00Z–2025-12-05T15:00Z. 31°F; 1 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41199. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 6, 2025Ducks: 196Hunters: 88
Detailed observations, archived forecast & source

Ducks per hunter: 2.23. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 23 · WFG: 8. These are separate from the duck count.

Historical weather observation · tentative report-date match: 35.5°F mean; 5.1 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-06T06:00Z for 2025-12-06T15:00Z–2025-12-06T15:00Z. 37°F; 3 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41200. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 7, 2025Ducks: 203Hunters: 92
Detailed observations, archived forecast & source

Ducks per hunter: 2.21. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 10 · WFG: 1. These are separate from the duck count.

Historical weather observation · tentative report-date match: 40.1°F mean; 4.2 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-07T06:00Z for 2025-12-07T15:00Z–2025-12-07T15:00Z. 41°F; 3 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41201. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 8, 2025Ducks: 222Hunters: 79
Detailed observations, archived forecast & source

Ducks per hunter: 2.81. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 7 · WFG: 4. These are separate from the duck count.

Historical weather observation · tentative report-date match: 34.9°F mean; 6.7 mph mean wind. Station USW00003817; 67 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-08T06:00Z for 2025-12-08T15:00Z–2025-12-08T15:00Z. 33°F; 9 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41202. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 9, 2025Ducks: 169Hunters: 60
Detailed observations, archived forecast & source

Ducks per hunter: 2.82. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 6 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 36.8°F mean; 13.1 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-09T06:00Z for 2025-12-09T15:00Z–2025-12-09T15:00Z. 37°F; 12 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41203. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 10, 2025Ducks: 188Hunters: 68
Detailed observations, archived forecast & source

Ducks per hunter: 2.76. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 12 · WFG: 3. These are separate from the duck count.

Historical weather observation · tentative report-date match: 43.3°F mean; 13 mph mean wind. Station USW00003817; 59 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-10T06:00Z for 2025-12-10T15:00Z–2025-12-10T15:00Z. 48°F; 16 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41204. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 11, 2025Ducks: 257Hunters: 85
Detailed observations, archived forecast & source

Ducks per hunter: 3.02. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 2 · SBG: 12 · WFG: 2. These are separate from the duck count.

Historical weather observation · tentative report-date match: 37.9°F mean; 6 mph mean wind. Station USW00003817; 68 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-11T06:00Z for 2025-12-11T15:00Z–2025-12-11T15:00Z. 36°F; 2 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41205. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 12, 2025Ducks: 189Hunters: 94
Detailed observations, archived forecast & source

Ducks per hunter: 2.01. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 1 · SBG: 5 · WFG: 4. These are separate from the duck count.

Historical weather observation · tentative report-date match: 39.1°F mean; 5.9 mph mean wind. Station USW00003817; 68 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-12T06:00Z for 2025-12-12T15:00Z–2025-12-12T15:00Z. 41°F; 8 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41206. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 13, 2025Ducks: 229Hunters: 91
Detailed observations, archived forecast & source

Ducks per hunter: 2.52. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 1 · SBG: 10 · WFG: 3. These are separate from the duck count.

Historical weather observation · tentative report-date match: 32.9°F mean; 8.3 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-13T06:00Z for 2025-12-13T15:00Z–2025-12-13T15:00Z. 36°F; 5 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41207. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 14, 2025Ducks: 151Hunters: 90
Detailed observations, archived forecast & source

Ducks per hunter: 1.68. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 4 · WFG: 6. These are separate from the duck count.

Historical weather observation · tentative report-date match: 20.5°F mean; 9.4 mph mean wind. Station USW00003817; 70 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-14T06:00Z for 2025-12-14T15:00Z–2025-12-14T15:00Z. 18°F; 15 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41208. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 15, 2025Ducks: 174Hunters: 76
Detailed observations, archived forecast & source

Ducks per hunter: 2.29. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 32 · WFG: 0. These are separate from the duck count.

Historical weather observation · tentative report-date match: 26.5°F mean; 7 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-15T06:00Z for 2025-12-15T15:00Z–2025-12-15T15:00Z. 22°F; 5 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41209. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 16, 2025Ducks: 311Hunters: 98
Detailed observations, archived forecast & source

Ducks per hunter: 3.17. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 1 · SBG: 8 · WFG: 1. These are separate from the duck count.

Historical weather observation · tentative report-date match: 40.5°F mean; 11.4 mph mean wind. Station USW00003817; 67 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-16T06:00Z for 2025-12-16T15:00Z–2025-12-16T15:00Z. 35°F; 8 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41210. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 17, 2025Ducks: 284Hunters: 71
Detailed observations, archived forecast & source

Ducks per hunter: 4. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 3 · WFG: 2. These are separate from the duck count.

Historical weather observation · tentative report-date match: 48.4°F mean; 8.9 mph mean wind. Station USW00003817; 69 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-17T06:00Z for 2025-12-17T15:00Z–2025-12-17T15:00Z. 44°F; 5 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41211. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 18, 2025Ducks: 332Hunters: 85
Detailed observations, archived forecast & source

Ducks per hunter: 3.91. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 9 · WFG: 1. These are separate from the duck count.

Historical weather observation · tentative report-date match: 51°F mean; 16.2 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-18T06:00Z for 2025-12-18T15:00Z–2025-12-18T15:00Z. 56°F; 15 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41212. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 19, 2025Ducks: 257Hunters: 99
Detailed observations, archived forecast & source

Ducks per hunter: 2.6. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 8 · WFG: 8. These are separate from the duck count.

Historical weather observation · tentative report-date match: 36.1°F mean; 9.6 mph mean wind. Station USW00003817; 65 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-19T06:00Z for 2025-12-19T15:00Z–2025-12-19T15:00Z. 34°F; 11 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41213. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 20, 2025Ducks: 162Hunters: 87
Detailed observations, archived forecast & source

Ducks per hunter: 1.86. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 1 · SBG: 8 · WFG: 5. These are separate from the duck count.

Historical weather observation · tentative report-date match: 45.4°F mean; 9.9 mph mean wind. Station USW00003817; 52 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-20T06:00Z for 2025-12-20T15:00Z–2025-12-20T15:00Z. 41°F; 11 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41214. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 21, 2025Ducks: 132Hunters: 96
Detailed observations, archived forecast & source

Ducks per hunter: 1.38. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 1 · SBG: 6 · WFG: 2. These are separate from the duck count.

Historical weather observation · tentative report-date match: 41.1°F mean; 8.9 mph mean wind. Station USW00003817; 66 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-21T06:00Z for 2025-12-21T15:00Z–2025-12-21T15:00Z. 40°F; 10 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41215. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 22, 2025Ducks: 225Hunters: 81
Detailed observations, archived forecast & source

Ducks per hunter: 2.78. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 8 · WFG: 2. These are separate from the duck count.

Historical weather observation · tentative report-date match: 44.4°F mean; 5.3 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-22T06:00Z for 2025-12-22T15:00Z–2025-12-22T15:00Z. 43°F; 3 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41216. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 23, 2025Ducks: 193Hunters: 93
Detailed observations, archived forecast & source

Ducks per hunter: 2.08. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 1 · SBG: 25 · WFG: 3. These are separate from the duck count.

Historical weather observation · tentative report-date match: 62.5°F mean; 7.1 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-23T06:00Z for 2025-12-23T15:00Z–2025-12-23T15:00Z. 59°F; 7 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41217. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 24, 2025Ducks: 162Hunters: 75
Detailed observations, archived forecast & source

Ducks per hunter: 2.16. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 23 · WFG: 4. These are separate from the duck count.

Historical weather observation · tentative report-date match: 65°F mean; 7.9 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-24T06:00Z for 2025-12-24T15:00Z–2025-12-24T15:00Z. 62°F; 5 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41218. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 26, 2025Ducks: 254Hunters: 98
Detailed observations, archived forecast & source

Ducks per hunter: 2.59. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 4 · WFG: 3. These are separate from the duck count.

Historical weather observation · tentative report-date match: 66.3°F mean; 11 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-26T06:00Z for 2025-12-26T15:00Z–2025-12-26T15:00Z. 63°F; 12 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41219. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 27, 2025Ducks: 205Hunters: 104
Detailed observations, archived forecast & source

Ducks per hunter: 1.97. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 3 · SBG: 16 · WFG: 7. These are separate from the duck count.

Historical weather observation · tentative report-date match: 60.5°F mean; 7.1 mph mean wind. Station USW00003817; 71 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-27T06:00Z for 2025-12-27T15:00Z–2025-12-27T15:00Z. 58°F; 4 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41220. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 28, 2025Ducks: 240Hunters: 103
Detailed observations, archived forecast & source

Ducks per hunter: 2.33. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 5 · WFG: 6. These are separate from the duck count.

Historical weather observation · tentative report-date match: 62.6°F mean; 20.9 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-28T06:00Z for 2025-12-28T15:00Z–2025-12-28T15:00Z. 65°F; 16 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41221. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 29, 2025Ducks: 280Hunters: 90
Detailed observations, archived forecast & source

Ducks per hunter: 3.11. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 2. These are separate from the duck count.

Historical weather observation · tentative report-date match: 30.9°F mean; 15.4 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-29T06:00Z for 2025-12-29T15:00Z–2025-12-29T15:00Z. 25°F; 19 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41222. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 30, 2025Ducks: 230Hunters: 95
Detailed observations, archived forecast & source

Ducks per hunter: 2.42. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 9 · WFG: 4. These are separate from the duck count.

Historical weather observation · tentative report-date match: 29.8°F mean; 6.5 mph mean wind. Station USW00003817; 69 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-30T06:00Z for 2025-12-30T15:00Z–2025-12-30T15:00Z. 26°F; 6 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41223. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Dec 31, 2025Ducks: 229Hunters: 90
Detailed observations, archived forecast & source

Ducks per hunter: 2.54. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 7 · WFG: 1. These are separate from the duck count.

Historical weather observation · tentative report-date match: 39.9°F mean; 6.2 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2025-12-31T06:00Z for 2025-12-31T15:00Z–2025-12-31T15:00Z. 34°F; 6 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41224. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Jan 1, 2026Ducks: 112Hunters: 97
Detailed observations, archived forecast & source

Ducks per hunter: 1.15. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 1 · WFG: 2. These are separate from the duck count.

Historical weather observation · tentative report-date match: 42.3°F mean; 2.4 mph mean wind. Station USW00003817; 72 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2026-01-01T06:00Z for 2026-01-01T15:00Z–2026-01-01T15:00Z. 42°F; 3 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41225. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Jan 2, 2026Ducks: 204Hunters: 90
Detailed observations, archived forecast & source

Ducks per hunter: 2.27. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 4 · WFG: 1. These are separate from the duck count.

Historical weather observation · tentative report-date match: 36.3°F mean; 8.6 mph mean wind. Station USW00003817; 68 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2026-01-02T06:00Z for 2026-01-02T15:00Z–2026-01-02T15:00Z. 42°F; 5 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41226. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Jan 3, 2026Ducks: 147Hunters: 100
Detailed observations, archived forecast & source

Ducks per hunter: 1.47. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 0 · WFG: 2. These are separate from the duck count.

Historical weather observation · tentative report-date match: 35.6°F mean; 5.9 mph mean wind. Station USW00003817; 68 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2026-01-03T06:00Z for 2026-01-03T15:00Z–2026-01-03T15:00Z. 35°F; 7 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41227. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be

Jan 4, 2026Ducks: 139Hunters: 93
Detailed observations, archived forecast & source

Ducks per hunter: 1.49. Duck species: unavailable. Location kill-board records: unavailable for this area and date.

Goose components (CG / SBG / WFG; group names inferred from source field codes): CG: 0 · SBG: 8 · WFG: 5. These are separate from the duck count.

Historical weather observation · tentative report-date match: 35.3°F mean; 1.2 mph mean wind. Station USW00003817; 63 observations. Rainfall: unavailable (incomplete observations).

Archived forecast guidance · tentative date match: GFS MOS (MAV) via NWS/NCEP via IEM archive; station KMAW; issued 2026-01-04T06:00Z for 2026-01-04T15:00Z–2026-01-04T15:00Z. 35°F; 4 knots; 1 forecast point(s). GFS MOS is statistical guidance for the station, not the NWS public forecast hunters read. Issue time is the nominal cycle time; public availability lagged ~4h, so only cycles issued >=6h before window start are used. Valid times are the 3-hourly points inside the assumed hunt window.

River flow · tentative date match: Unavailable. These readings do not establish pool depth or access.

MDC report source ↗ · Otter Slough CA · 2025-2026 · source record mdc:5004:41228. Snapshot collected Oct 31, 2026.

Raw source SHA-256: 1aebcde0f23e6db44dedc67378764fcc2b7adb28386ce56bfa74e180cea5e1be