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Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

23NM SW Shemya AK

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:W wind 5 to 10 kt. Mostly cloudy. Seas around 2 ft.

      Low: 46 °F

      W 10kt
      2ft

    • Friday

      Friday:SW wind 5 to 10 kt becoming S in the afternoon. Rain, mainly after 4pm. Seas 1 to 2 ft.

      High: 54 °F

      S 10kt
      1-2ft

    • Friday Night

      Friday Night:SSE wind 10 to 15 kt. Showers. Seas around 2 ft.

      Low: 48 °F

      SSE 15kt
      2ft

    • Saturday

      Saturday:SSW wind around 20 kt. Rain likely, mainly before 10am. Seas around 2 ft.

      High: 56 °F

      SSW 20kt
      2ft

    • Saturday Night

      Saturday Night:SSW wind 20 to 25 kt. Rain likely, mainly after 1am. Seas around 3 ft.

      Low: 50 °F

      SSW 25kt
      3ft

    • Sunday

      Sunday:SSW wind 20 to 25 kt. Showers. Seas around 3 ft.

      High: 55 °F

      SSW 25kt
      3ft

    • Sunday Night

      Sunday Night:WSW wind 15 to 20 kt. A chance of rain. Seas around 3 ft.

      Low: 48 °F

      WSW 20kt
      3ft

    • Monday

      Monday:W wind 10 to 15 kt, with gusts as high as 20 kt. A chance of rain. Seas around 3 ft.

      High: 54 °F

      W 15kt
      3ft

    • Monday Night

      Monday Night:WSW wind 5 to 10 kt. Mostly cloudy. Seas around 2 ft.

      Low: 47 °F

      WSW 10kt
      2ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 10:25 pm AKDT Jul 30, 2026
Forecast Valid: 12am AKDT Jul 31, 2026-6pm AKDT Aug 6, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY TONIGHT AND FRIDAY NIGHT...

Synopsis: A 1005 mb low 100 nm SW of Shemya moves to 75 nm SE of St George at 1007 mb Fri afternoon. Its front moves through the Aleutians reaching the Mainland Fri evening. A ridge of high pressure moves in behind the low.

Overnight
W wind 5 to 10 kt. Mostly cloudy. Seas around 2 ft.
Friday
SW wind 5 to 10 kt becoming S in the afternoon. Rain, mainly after 4pm. Seas 1 to 2 ft.
Friday Night
SSE wind 10 to 15 kt. Showers. Seas around 2 ft.
Saturday
SSW wind around 20 kt. Rain likely, mainly before 10am. Seas around 2 ft.
Saturday Night
SSW wind 20 to 25 kt. Rain likely, mainly after 1am. Seas around 3 ft.
Sunday
SSW wind 20 to 25 kt. Showers. Seas around 3 ft.
Sunday Night
WSW wind 15 to 20 kt. A chance of rain. Seas around 3 ft.
Monday
W wind 10 to 15 kt, with gusts as high as 20 kt. A chance of rain. Seas around 3 ft.
Monday Night
WSW wind 5 to 10 kt. Mostly cloudy. Seas around 2 ft.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 52.43°N 173.71°E
Last Update: 10:25 pm AKDT Jul 30, 2026
Forecast Valid: 12am AKDT Jul 31, 2026-6pm AKDT Aug 6, 2026
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