Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]
    • Thursday

      Thursday:W wind 30 to 35 kt. A chance of showers, mainly before 10am.   Seas 8 ft building to 11 ft.

      High: 41 °F

      W 35kt
      Waves Building11ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday Night

      Thursday Night:W wind around 25 kt, with gusts as high as 30 kt. A slight chance of showers after 1am.   Seas 8 to 9 ft.

      Low: 38 °F

      W 25kt
      8-9ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday

      Friday:W wind 15 to 20 kt, with gusts as high as 30 kt. Partly sunny. Seas 6 to 8 ft.

      High: 41 °F

      W 20kt
      6-8ft

    • Friday Night

      Friday Night:NW wind 10 to 15 kt. A chance of rain.   Seas 4 to 5 ft.

      Low: 37 °F

      NW 15kt
      4-5ft

    • Saturday

      Saturday:N wind around 15 kt. Scattered showers before 10am.   Seas around 4 ft.

      High: 41 °F

      N 15kt
      4ft

    • Saturday Night

      Saturday Night:NNW wind around 10 kt becoming NNE after midnight. A chance of showers after 4am.   Seas around 4 ft.

      Low: 38 °F

      NNW 10kt
      4ft

    • Sunday

      Sunday:E wind 15 to 20 kt increasing to 20 to 25 kt in the morning. Winds could gust as high as 30 kt. Showers likely, mainly after 10am.   Seas around 4 ft.

      High: 42 °F

      ⇑E 25kt
      4ft

    • Sunday Night

      Sunday Night:E wind 35 to 40 kt. Showers.   Seas 4 to 5 ft.

      Low: 38 °F

      E 40kt
      4-5ft

    • Memorial Day

      Memorial Day:W wind around 30 kt, with gusts as high as 35 kt. Showers.   Seas around 6 ft.

      High: 42 °F

      W 30kt
      6ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 8:03 pm AKDT May 20, 2026
Forecast Valid: 4am AKDT May 21, 2026-6pm AKDT May 27, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

Synopsis: A 976 mb low 25 nm E of Atka moves to 60 nm SE of Cape Newenham at 992 mb Thu afternoon and continues inland by Fri morning.

Thursday
W wind 30 to 35 kt. A chance of showers, mainly before 10am. Seas 8 ft building to 11 ft.
Thursday Night
W wind around 25 kt, with gusts as high as 30 kt. A slight chance of showers after 1am. Seas 8 to 9 ft.
Friday
W wind 15 to 20 kt, with gusts as high as 30 kt. Partly sunny. Seas 6 to 8 ft.
Friday Night
NW wind 10 to 15 kt. A chance of rain. Seas 4 to 5 ft.
Saturday
N wind around 15 kt. Scattered showers before 10am. Seas around 4 ft.
Saturday Night
NNW wind around 10 kt becoming NNE after midnight. A chance of showers after 4am. Seas around 4 ft.
Sunday
E wind 15 to 20 kt increasing to 20 to 25 kt in the morning. Winds could gust as high as 30 kt. Showers likely, mainly after 10am. Seas around 4 ft.
Sunday Night
E wind 35 to 40 kt. Showers. Seas 4 to 5 ft.
Memorial Day
W wind around 30 kt, with gusts as high as 35 kt. Showers. Seas around 6 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: 52.89°N 173.1°W
Last Update: 8:03 pm AKDT May 20, 2026
Forecast Valid: 4am AKDT May 21, 2026-6pm AKDT May 27, 2026
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