Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:SW wind 20 to 25 kt, with gusts as high as 30 kt. A slight chance of showers before 1am, then a slight chance of showers after 4am.   Seas 8 to 9 ft.

      Low: 37 °F

      SW 25kt
      8-9ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday

      Monday:SSW wind around 20 kt. Showers likely, mainly after 1pm.   Seas 7 to 8 ft.

      High: 41 °F

      SSW 20kt
      7-8ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday Night

      Monday Night:WSW wind 10 to 15 kt. Showers.   Seas around 5 ft.

      Low: 39 °F

      WSW 15kt
      5ft

    • Tuesday

      Tuesday:W wind 20 to 25 kt. Showers, mainly before 7am.   Seas around 7 ft.

      High: 41 °F

      W 25kt
      7ft

    • Tuesday Night

      Tuesday Night:WSW wind 15 to 25 kt becoming S after midnight. Rain, mainly after 10pm.   Seas 5 to 7 ft.

      Low: 38 °F

      S 25kt
      5-7ft

    • Wednesday

      Wednesday:SSE wind 30 to 35 kt becoming SSW in the morning. Rain, mainly before 10am.   Seas 7 ft building to 13 ft.

      High: 42 °F

      SSE 35kt
      Waves Building13ft

    • Wednesday Night

      Wednesday Night:WSW wind 25 to 30 kt, with gusts as high as 45 kt. Showers likely.   Seas 16 ft subsiding to 7 ft.

      Low: 38 °F

      WSW 30kt
      16ftWaves Subsiding

    • Thursday

      Thursday:W wind 30 to 35 kt, with gusts as high as 40 kt. Showers likely.   Seas around 11 ft.

      High: 41 °F

      W 35kt
      11ft

    • Thursday Night

      Thursday Night:W wind around 30 kt, with gusts as high as 40 kt. A chance of showers.   Seas 9 to 10 ft.

      Low: 38 °F

      W 30kt
      9-10ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:06 pm AKDT May 17, 2026
Forecast Valid: 12am AKDT May 18, 2026-6pm AKDT May 24, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

Synopsis: A 979 mb low 50 nm WNW of Saint Paul moves to 240 nm WSW of Saint Paul at 982 mb by Mon morning. It then continues to 90 nm SW of Saint Paul at 992 mb by Tue morning. A 994 mb low forms Mon morning 140 nm SE of Nikolski and then moves to 20 nm NE of Kipnuk at 995 mb Tue morning.

Overnight
SW wind 20 to 25 kt, with gusts as high as 30 kt. A slight chance of showers before 1am, then a slight chance of showers after 4am. Seas 8 to 9 ft.
Monday
SSW wind around 20 kt. Showers likely, mainly after 1pm. Seas 7 to 8 ft.
Monday Night
WSW wind 10 to 15 kt. Showers. Seas around 5 ft.
Tuesday
W wind 20 to 25 kt. Showers, mainly before 7am. Seas around 7 ft.
Tuesday Night
WSW wind 15 to 25 kt becoming S after midnight. Rain, mainly after 10pm. Seas 5 to 7 ft.
Wednesday
SSE wind 30 to 35 kt becoming SSW in the morning. Rain, mainly before 10am. Seas 7 ft building to 13 ft.
Wednesday Night
WSW wind 25 to 30 kt, with gusts as high as 45 kt. Showers likely. Seas 16 ft subsiding to 7 ft.
Thursday
W wind 30 to 35 kt, with gusts as high as 40 kt. Showers likely. Seas around 11 ft.
Thursday Night
W wind around 30 kt, with gusts as high as 40 kt. A chance of showers. Seas 9 to 10 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: 11:06 pm AKDT May 17, 2026
Forecast Valid: 12am AKDT May 18, 2026-6pm AKDT May 24, 2026
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