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Anchorage, AK Local Forecast Office

20NM SSE Shumagin Islands AK

Marine Point Forecast

[NOTICE]

This Afternoon
High: 46 °F
SE 20kt
7ft
Tonight
Low: 44 °F
⇑E 40kt
11ft

Gale Warning
Tuesday
High: 47 °F
SE 40kt
10-11ft

Gale Warning
Tuesday Night
Low: 42 °F
SSE 25kt
8-10ft
Wednesday
High: 46 °F
SSE 20kt
7-8ft
Wednesday Night
Low: 42 °F
SE 15kt
6-7ft
Thursday
High: 44 °F
ESE 15kt
4-6ft
Thursday Night
Low: 41 °F
ESE 10kt
4ft
Friday
High: 43 °F
WNW 10kt
2-4ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:25 am AKST Dec 1, 2025
Forecast Valid: 12pm AKST Dec 1, 2025-6pm AKST Dec 7, 2025

View Nearby Observations

Detailed Forecast

...STORM WARNING TONIGHT...

Synopsis: A 978 mb low 245 nm SW of Nikolski merges with a North Pacific low 110 nm S of Unalaska at 960 mb tonight. It then moves to 175 nm S of Nikolski at 978 mb Wed morning. Multiple fronts move across the Bering through Tue night.

This Afternoon

SE wind around 20 kt. Rain likely before 3pm, then a chance of showers after 3pm. Seas around 7 ft.

Tonight

E wind 30 to 35 kt becoming E 35 to 40 kt after midnight. Winds could gust as high as 50 kt. Rain, mainly before 3am, then a chance of showers after 3am. Seas 6 ft building to 11 ft.

Tuesday

SE wind 30 to 40 kt, with gusts as high as 45 kt. A chance of rain. Seas 10 to 11 ft.

Tuesday Night

SSE wind 20 to 25 kt, with gusts as high as 30 kt. Rain likely, mainly after 3am. Seas 8 to 10 ft.

Wednesday

SSE wind 15 to 20 kt. Rain likely, mainly before 3pm. Seas 7 to 8 ft.

Wednesday Night

SSE wind 10 to 15 kt becoming E after midnight. Rain likely, mainly between midnight and 3am. Seas 6 to 7 ft.

Thursday

ESE wind 10 to 15 kt. Rain likely, mainly after 3pm. Seas 4 to 6 ft.

Thursday Night

ESE wind 5 to 10 kt, with gusts as high as 20 kt. Rain likely. Seas around 4 ft.

Friday

ESE wind 5 to 10 kt becoming WNW in the afternoon. A chance of rain. Seas 2 to 4 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.