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Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]

    • Saturday

      Saturday:WNW wind 15 to 20 kt becoming NW 5 to 10 kt in the afternoon. Isolated showers before 7am, then isolated showers after 1pm. Seas 8 ft subsiding to 5 ft.

      High: 45 °F

      WNW 20kt⇓
      8ftWaves Subsiding

      Small Craft Advisory
      Small Craft Advisory

    • Saturday Night

      Saturday Night:N wind 15 to 20 kt, with gusts as high as 25 kt. Scattered showers. Seas 5 to 6 ft.

      Low: 43 °F

      N 20kt
      5-6ft

    • Sunday

      Sunday:NW wind 15 to 20 kt decreasing to 5 to 10 kt in the afternoon. Cloudy through mid morning, then gradual clearing. Seas around 7 ft.

      High: 45 °F

      NW 20kt⇓
      7ft

    • Sunday Night

      Sunday Night:SE wind 15 to 20 kt increasing to 25 to 30 kt after midnight. Winds could gust as high as 35 kt. Rain, mainly after 10pm. Seas 6 to 7 ft.

      Low: 41 °F

      ⇑SE 30kt
      6-7ft

    • Monday

      Monday:SSW wind 15 to 20 kt becoming W 5 to 10 kt in the afternoon. Showers likely, mainly before 1pm. Seas 5 to 6 ft.

      High: 47 °F

      SSW 20kt⇓
      5-6ft

    • Monday Night

      Monday Night:N wind 20 to 25 kt increasing to 25 to 30 kt in the evening. Scattered showers before 1am, then scattered showers after 4am. Seas 9 ft building to 12 ft.

      Low: 42 °F

      ⇑N 30kt
      Waves Building12ft

    • Tuesday

      Tuesday:N wind 10 to 20 kt. Scattered showers. Seas 10 ft subsiding to 7 ft.

      High: 47 °F

      N 20kt
      10ftWaves Subsiding

    • Tuesday Night

      Tuesday Night:NW wind 5 to 10 kt increasing to 10 to 15 kt in the evening. A chance of rain. Seas 5 to 6 ft.

      Low: 42 °F

      ⇑NW 15kt
      5-6ft

    • Wednesday

      Wednesday:WNW wind 15 to 20 kt. A chance of showers. Seas 4 ft building to 9 ft.

      High: 45 °F

      WNW 20kt
      Waves Building9ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:10 pm AKDT Oct 17, 2025
Forecast Valid: 2am AKDT Oct 18, 2025-6pm AKDT Oct 24, 2025

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY TONIGHT...

Synopsis: A 999 mb low 30 nm north of Nikolski moves to 90 nm southeast of Unalaska at 1010 mb Sat morning and dissipates. Several weak surface lows develop across the Bering today through Sat night. A front reaches the western Bering by Sun afternoon.

Saturday
WNW wind 15 to 20 kt becoming NW 5 to 10 kt in the afternoon. Isolated showers before 7am, then isolated showers after 1pm. Seas 8 ft subsiding to 5 ft.
Saturday Night
N wind 15 to 20 kt, with gusts as high as 25 kt. Scattered showers. Seas 5 to 6 ft.
Sunday
NW wind 15 to 20 kt decreasing to 5 to 10 kt in the afternoon. Cloudy through mid morning, then gradual clearing. Seas around 7 ft.
Sunday Night
SE wind 15 to 20 kt increasing to 25 to 30 kt after midnight. Winds could gust as high as 35 kt. Rain, mainly after 10pm. Seas 6 to 7 ft.
Monday
SSW wind 15 to 20 kt becoming W 5 to 10 kt in the afternoon. Showers likely, mainly before 1pm. Seas 5 to 6 ft.
Monday Night
N wind 20 to 25 kt increasing to 25 to 30 kt in the evening. Scattered showers before 1am, then scattered showers after 4am. Seas 9 ft building to 12 ft.
Tuesday
N wind 10 to 20 kt. Scattered showers. Seas 10 ft subsiding to 7 ft.
Tuesday Night
NW wind 5 to 10 kt increasing to 10 to 15 kt in the evening. A chance of rain. Seas 5 to 6 ft.
Wednesday
WNW wind 15 to 20 kt. A chance of showers. Seas 4 ft building to 9 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: 9:10 pm AKDT Oct 17, 2025
Forecast Valid: 2am AKDT Oct 18, 2025-6pm AKDT Oct 24, 2025
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