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Anchorage, AK Local Forecast Office

20NM SSE Shumagin Islands AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 40 °F
E 35kt
6-7ft

Small Craft Advisory
Saturday
High: 45 °F
E 40kt⇓
10ft

Gale Warning
Saturday Night
Low: 44 °F
ESE 20kt
5-6ft
Sunday
High: 45 °F
ESE 10kt
4-6ft
Sunday Night
Low: 44 °F
SSE 10kt
5-6ft
Monday
High: 45 °F
SSW 15kt
7-8ft
Monday Night
Low: 44 °F
⇑ESE 25kt
7-8ft
Tuesday
High: 46 °F
SE 25kt
8ft
Tuesday Night
Low: 41 °F
SSE 25kt
7-8ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:09 pm AKST Nov 28, 2025
Forecast Valid: 9pm AKST Nov 28, 2025-6pm AKST Dec 5, 2025

View Nearby Observations

Detailed Forecast

...GALE WARNING THROUGH SATURDAY...

Synopsis: A 960 mb North Pacific low weakens to 980 mb and elongates as it approaches 170 nm S of Adak and 115 nm S of Unimak Pass by Sun afternoon. Its front along the Aleutian Chain lifts into Bering Sea through Sun afternoon.

Tonight

E wind 25 to 35 kt, with gusts as high as 40 kt. Rain likely, mainly after 3am. Seas 6 to 7 ft.

Saturday

E wind 35 to 40 kt decreasing to 25 to 30 kt in the afternoon. Rain. Areas of fog after 3pm. Seas 10 ft subsiding to 7 ft.

Saturday Night

ESE wind 15 to 20 kt. Rain likely. Areas of fog before 3am. Seas 5 to 6 ft.

Sunday

ESE wind around 10 kt becoming SSE in the afternoon. Showers likely, mainly before noon. Patchy fog before 9am. Seas 4 to 6 ft.

Sunday Night

SSE wind 5 to 10 kt. Showers likely, mainly between 9pm and midnight. Seas 5 to 6 ft.

Monday

SSW wind 10 to 15 kt becoming SSE in the afternoon. A chance of rain before 3pm. Seas 7 to 8 ft.

Monday Night

SSE wind 10 to 15 kt becoming ESE 20 to 25 kt after midnight. Winds could gust as high as 35 kt. Rain likely, mainly after 3am. Seas 7 to 8 ft.

Tuesday

ESE wind around 25 kt becoming S in the afternoon. Rain likely. Seas around 8 ft.

Tuesday Night

SSE wind 20 to 25 kt. A chance of rain. Seas 7 to 8 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.