Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:NNW wind 5 to 10 kt. A slight chance of rain after 4am.   Seas around 3 ft.

      Low: 38 °F

      NNW 10kt
      3ft

    • Sunday

      Sunday:ESE wind 10 to 20 kt increasing to 20 to 30 kt in the afternoon. Rain, mainly after 10am. The rain could be heavy at times.   Seas 3 ft building to 6 ft.

      High: 42 °F

      ⇑ESE 30kt
      Waves Building6ft

      Small Craft Advisory
      Small Craft Advisory

    • Sunday Night

      Sunday Night:E wind 35 to 45 kt becoming SSE 25 to 35 kt after midnight. Winds could gust as high as 50 kt. Rain.   Seas 13 ft subsiding to 10 ft.

      Low: 38 °F

      E 45kt⇓
      13ftWaves Subsiding

      Gale Warning
      Gale Warning

    • Memorial Day

      Memorial Day:NNW wind 5 to 10 kt increasing to 15 to 20 kt in the afternoon. Rain, mainly before 10am.   Seas around 10 ft.

      High: 42 °F

      ⇑NNW 20kt
      10ft

    • Monday Night

      Monday Night:NW wind 25 to 30 kt. Showers likely, mainly after 1am.   Seas 11 to 12 ft.

      Low: 38 °F

      NW 30kt
      11-12ft

    • Tuesday

      Tuesday:WNW wind around 30 kt. A chance of rain before 1pm.   Seas 10 to 11 ft.

      High: 41 °F

      WNW 30kt
      10-11ft

    • Tuesday Night

      Tuesday Night:WNW wind 25 to 30 kt. Mostly cloudy. Seas 8 to 9 ft.

      Low: 38 °F

      WNW 30kt
      8-9ft

    • Wednesday

      Wednesday:W wind 25 to 30 kt. Mostly cloudy. Seas 6 to 8 ft.

      High: 42 °F

      W 30kt
      6-8ft

    • Wednesday Night

      Wednesday Night:W wind 15 to 20 kt. A chance of showers.   Seas 4 to 5 ft.

      Low: 39 °F

      W 20kt
      4-5ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:06 pm AKDT May 23, 2026
Forecast Valid: 12am AKDT May 24, 2026-6pm AKDT May 30, 2026

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Detailed Forecast

...GALE WARNING SUNDAY AND SUNDAY NIGHT...

Synopsis: A 973 mb North Pacific low moves to 430 nm SW of Adak by Sun afternoon then to 120 nm west of Unalaska Bay by Mon evening.

Overnight
NNW wind 5 to 10 kt. A slight chance of rain after 4am. Seas around 3 ft.
Sunday
ESE wind 10 to 20 kt increasing to 20 to 30 kt in the afternoon. Rain, mainly after 10am. The rain could be heavy at times. Seas 3 ft building to 6 ft.
Sunday Night
E wind 35 to 45 kt becoming SSE 25 to 35 kt after midnight. Winds could gust as high as 50 kt. Rain. Seas 13 ft subsiding to 10 ft.
Memorial Day
NNW wind 5 to 10 kt increasing to 15 to 20 kt in the afternoon. Rain, mainly before 10am. Seas around 10 ft.
Monday Night
NW wind 25 to 30 kt. Showers likely, mainly after 1am. Seas 11 to 12 ft.
Tuesday
WNW wind around 30 kt. A chance of rain before 1pm. Seas 10 to 11 ft.
Tuesday Night
WNW wind 25 to 30 kt. Mostly cloudy. Seas 8 to 9 ft.
Wednesday
W wind 25 to 30 kt. Mostly cloudy. Seas 6 to 8 ft.
Wednesday Night
W wind 15 to 20 kt. A chance of showers. Seas 4 to 5 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: 9:06 pm AKDT May 23, 2026
Forecast Valid: 12am AKDT May 24, 2026-6pm AKDT May 30, 2026
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