Marine forecast
Saint Matthew Island, AK
- marine forecast
- 72-hour
- 72-hr peak
- 22 kt
- Peak seas
- 10 ft
Forecast issued Tue 3:58 AM | PKZ767
- 72-hr peak
- 22 kt
- Peak seas
- 10 ft
In brief
The NWS forecast for Saint Matthew Island, AK issued at 3:58 am AKDT on Oct 13, 2026 reads, for today: “E of Saint Matthew Island, NW wind 15 kt becoming N 25 kt in the afternoon. W of Saint Matthew Island, N wind 30 kt.” A Small Craft Advisory is in effect until Wed 5:00 PM.
Source: National Weather Service Anchorage Alaska forecast; NDBC observations
Wind forecast · ktPeak 22 kt
Seas forecast · ftPeak 10 ft
Marine advisory
Small Craft Advisory in effect for Saint Matthew Island until Wed 5:00 PM.
Full text of this small craft advisory
Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out. Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. .TODAY...E of Saint Matthew Island, NW wind 15 kt becoming N 25 kt in the afternoon. W of Saint Matthew Island, N wind 30 kt. Seas 11 ft. .TONIGHT...N wind 25 kt. Seas 10 ft. .WED...N wind 25 kt. Seas 9 ft. .WED NIGHT...N wind 25 kt. Seas 8 ft. .THU THROUGH FRI...N wind 25 kt. Seas 8 ft. .SAT...SE wind 15 kt. Seas 6 ft.
Small Craft Advisory in effect for Saint Matthew Island until Wed 5:00 AM.
Full text of this small craft advisory
Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out. Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. .TONIGHT...NW wind 15 kt E of Saint Matthew Island...N 30 kt W of Saint Matthew Island. Seas 10 ft. and snow showers. .TUE...NW wind 20 kt E of Saint Matthew Island...N 30 kt W of Saint Matthew Island. Seas 11 ft. .TUE NIGHT...N wind 25 kt. Seas 10 ft. .WED AND WED NIGHT...N wind 25 kt. Seas 8 ft. .THU THROUGH FRI...NE wind 25 kt. Seas 8 ft. .SAT...E wind 15 kt. Seas 6 ft.
Small Craft Advisory in effect for Saint Matthew Island until Tue 5:00 PM.
Full text of this small craft advisory
Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out. Wind forecasts reflect the predominant speed and direction expected. Sea forecasts represent an average of the highest one-third of the combined wind wave and swell height. .TODAY...W wind 15 kt E of Saint Matthew Island...NW 20 kt W of Saint Matthew Island. Seas 7 ft. .TONIGHT...NW wind 15 kt E of Saint Matthew Island...N 30 kt W of Saint Matthew Island. Seas 10 ft. and snow showers. .TUE...NW wind 20 kt E of Saint Matthew Island...N 30 kt W of Saint Matthew Island. Seas 11 ft. .TUE NIGHT...N wind 25 kt. Seas 10 ft. .WED THROUGH FRI...NE wind 25 kt. Seas 9 ft.
NWS marine forecast
| Period | Forecast |
|---|---|
| Today | E of Saint Matthew Island, NW wind 15 kt becoming N 25 kt in the afternoon. W of Saint Matthew Island, N wind 30 kt. Seas 11 ft. |
| Tonight | N wind 25 kt. Seas 10 ft. |
| Wed | N wind 25 kt. Seas 9 ft. |
| Wed Night | N wind 25 kt. Seas 8 ft. |
| Thu Through Fri | N wind 25 kt. Seas 8 ft. |
| Sat | SE wind 15 kt. Seas 6 ft. |
Issued Tue 3:58 AM by Anchorage Alaska (product CWFALU).
Frequently asked questions
What is the marine forecast for Saint Matthew Island today?
Today: E of Saint Matthew Island, NW wind 15 kt becoming N 25 kt in the afternoon. W of Saint Matthew Island, N wind 30 kt. Seas 11 ft.
Is there a small craft advisory for Saint Matthew Island?
Yes — small craft advisory, small craft advisory, small craft advisory in effect until Wed 5:00 PM.
What do the wind speeds in knots mean?
One knot is 1.15 mph. The National Weather Service issues a small craft advisory for sustained winds of roughly 22–33 knots or hazardous seas, a gale warning at 34–47 knots, and a storm warning at 48 knots and above. Exact advisory thresholds vary by forecast office and by water body — a bay reaches dangerous chop at a lower wind speed than open ocean.
Where does this forecast come from?
The forecast text is the National Weather Service's own marine bulletin for zone PKZ767, issued by Anchorage Alaska, reproduced in full. The wind and seas charts are drawn from the NWS gridded forecast for a point inside the zone. Observations come from the nearest reporting NDBC buoy. We are not affiliated with NOAA or the National Weather Service.
Forecast: NOAA/NWS product CWFALU, issued Tue 3:58 AM. Observations: NOAA National Data Buoy Center. Retrieved Oct 13, 11:42 AM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.