Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]
    • Monday

      Monday:S wind around 30 kt, with gusts as high as 35 kt. A slight chance of rain before 4pm.   Seas 9 to 11 ft.

      High: 41 °F

      S 30kt
      9-11ft

      Small Craft Advisory
      Small Craft Advisory

    • Monday Night

      Monday Night:ESE wind 25 to 30 kt. Rain, mainly after 1am.   Seas 7 to 8 ft.

      Low: 39 °F

      ESE 30kt
      7-8ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday

      Tuesday:E wind 25 to 35 kt becoming SSE in the afternoon. Rain.   Seas 10 to 11 ft.

      High: 42 °F

      E 35kt
      10-11ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday Night

      Tuesday Night:SSW wind 25 to 30 kt. Showers.   Seas 10 to 12 ft.

      Low: 37 °F

      SSW 30kt
      10-12ft

    • Wednesday

      Wednesday:S wind 25 to 35 kt. Showers.   Seas 9 to 11 ft.

      High: 40 °F

      S 35kt
      9-11ft

    • Wednesday Night

      Wednesday Night:W wind 25 to 30 kt, with gusts as high as 35 kt. A chance of rain showers before 10pm, then rain and snow showers likely between 10pm and 4am, then rain showers after 4am.   Seas 8 ft building to 11 ft.

      Low: 35 °F

      W 30kt
      Waves Building11ft

    • Thursday

      Thursday:W wind 20 to 25 kt. Rain before 10am, then rain and snow likely.   Seas around 7 ft.

      High: 39 °F

      W 25kt
      7ft

    • Thursday Night

      Thursday Night:W wind 15 to 20 kt. Rain and snow, becoming all snow after 4am.   Seas 7 to 8 ft.

      Low: 34 °F

      W 20kt
      7-8ft

    • Friday

      Friday:WSW wind around 15 kt. Snow before 10am, then rain and snow.   Seas around 6 ft.

      High: 39 °F

      WSW 15kt
      6ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:18 am AKDT Apr 20, 2026
Forecast Valid: 4am AKDT Apr 20, 2026-6pm AKDT Apr 26, 2026

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Detailed Forecast

...GALE WARNING TUESDAY...

Synopsis: A 996 mb low pressure 120 nm NW of St. Paul pushes inland by Mon afternoon. A separate 991 mb low 70 nm SE of Shemya moves to 40 nm W of Adak at 961 mb by Wed morning.

Monday
S wind around 30 kt, with gusts as high as 35 kt. A slight chance of rain before 4pm. Seas 9 to 11 ft.
Monday Night
ESE wind 25 to 30 kt. Rain, mainly after 1am. Seas 7 to 8 ft.
Tuesday
E wind 25 to 35 kt becoming SSE in the afternoon. Rain. Seas 10 to 11 ft.
Tuesday Night
SSW wind 25 to 30 kt. Showers. Seas 10 to 12 ft.
Wednesday
S wind 25 to 35 kt. Showers. Seas 9 to 11 ft.
Wednesday Night
W wind 25 to 30 kt, with gusts as high as 35 kt. A chance of rain showers before 10pm, then rain and snow showers likely between 10pm and 4am, then rain showers after 4am. Seas 8 ft building to 11 ft.
Thursday
W wind 20 to 25 kt. Rain before 10am, then rain and snow likely. Seas around 7 ft.
Thursday Night
W wind 15 to 20 kt. Rain and snow, becoming all snow after 4am. Seas 7 to 8 ft.
Friday
WSW wind around 15 kt. Snow before 10am, then rain and snow. 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: 52.84°N 173.2°W
Last Update: 4:18 am AKDT Apr 20, 2026
Forecast Valid: 4am AKDT Apr 20, 2026-6pm AKDT Apr 26, 2026
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