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Anchorage, AK Local Forecast Office

30NM ESE Amchitka AK

Marine Point Forecast

[NOTICE]

Tonight
Low: 36 °F
NNW 25kt
6ft

Small Craft Advisory
Wednesday
High: 39 °F
NW 25kt
5-6ft

Small Craft Advisory
Wednesday Night
Low: 38 °F
NNW 15kt
3-4ft
Thanksgiving Day
High: 40 °F
NE 15kt
3-4ft
Thursday Night
Low: 38 °F
NE 25kt
7ft
Friday
High: 39 °F
NNE 30kt
8-10ft
Friday Night
Low: 35 °F
N 35kt
14ft
Saturday
High: 37 °F
N 35kt
14ft
Saturday Night
Low: 34 °F
NNW 30kt
10-11ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:22 pm AKST Nov 25, 2025
Forecast Valid: 8pm AKST Nov 25, 2025-6pm AKST Dec 2, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

Synopsis: A 982 mb low 120 nm WNW of Unalaska moves to 80 nm NE of Atka at 987 mb Wed morning. This low merges with a 990 mb low located 165 nm S of Unalaska Wed morning, creating a new 996 mb low 105 nm SE of Unalaska by Thu morning. A 997 mb North Pacific low develops along a front Wed afternoon and moves to 110 nm E of Chignik at 998 mb Thu morning.

Tonight

NNW wind 20 to 25 kt. Isolated showers after 3am. Seas around 6 ft.

Wednesday

NW wind 20 to 25 kt. Scattered showers. Seas 5 to 6 ft.

Wednesday Night

NNW wind 5 to 15 kt becoming NNE after midnight. Isolated showers before midnight. Seas 3 to 4 ft.

Thanksgiving Day

NE wind 10 to 15 kt. Partly sunny. Seas 3 to 4 ft.

Thursday Night

NE wind 20 to 25 kt, with gusts as high as 30 kt. Mostly cloudy. Seas 4 ft building to 7 ft.

Friday

NNE wind around 30 kt, with gusts as high as 40 kt. Mostly cloudy. Seas 8 to 10 ft.

Friday Night

N wind 30 to 35 kt, with gusts as high as 40 kt. A chance of rain after 9pm. Seas 10 ft building to 14 ft.

Saturday

N wind 30 to 35 kt. A chance of rain. Seas 14 ft subsiding to 11 ft.

Saturday Night

NNW wind 25 to 30 kt. A chance of rain. Seas 10 to 11 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.