Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]
    • Today

      Today:SE wind 15 to 20 kt. Rain, mainly after 1pm.   Seas around 3 ft.

      High: 47 °F

      SE 20kt
      3ft

    • Tonight

      Tonight:SSE wind 20 to 30 kt. Rain, mainly before 1am.   Seas around 5 ft.

      Low: 44 °F

      SSE 30kt
      5ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday

      Tuesday:SSW wind around 20 kt, with gusts as high as 25 kt. Scattered showers, mainly before 7am.   Seas 4 to 5 ft.

      High: 48 °F

      SSW 20kt
      4-5ft

    • Tuesday Night

      Tuesday Night:SSW wind 20 to 25 kt. Increasing clouds. Seas around 6 ft.

      Low: 44 °F

      SSW 25kt
      6ft

    • Wednesday

      Wednesday:SSW wind around 25 kt. Scattered showers before 4pm.   Seas around 7 ft.

      High: 47 °F

      SSW 25kt
      7ft

    • Wednesday Night

      Wednesday Night:WSW wind 20 to 25 kt. A chance of rain after 4am.   Seas 5 to 6 ft.

      Low: 42 °F

      WSW 25kt
      5-6ft

    • Thursday

      Thursday:WNW wind around 15 kt, with gusts as high as 20 kt. A chance of showers before 10am.   Seas around 5 ft.

      High: 45 °F

      WNW 15kt
      5ft

    • Thursday Night

      Thursday Night:WNW wind 10 to 15 kt. Mostly cloudy. Seas 3 to 4 ft.

      Low: 42 °F

      WNW 15kt
      3-4ft

    • Friday

      Friday:W wind around 10 kt becoming SSW in the morning. Cloudy. Seas 2 to 3 ft.

      High: 46 °F

      W 10kt
      2-3ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 7:39 am AKDT Jun 29, 2026
Forecast Valid: 8am AKDT Jun 29, 2026-6pm AKDT Jul 5, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

Synopsis: A 988 mb low 250 nm SW of Shemya Mon afternoon moves to 140 nm W of Shemya at 993 mb by Tue morning. The low continues to 135 nm NE of Shemya at 1003 mb for Wed morning. Its front spreads across the Aleutians Mon morning through Wed morning.

Today
SE wind 15 to 20 kt. Rain, mainly after 1pm. Seas around 3 ft.
Tonight
SSE wind 20 to 30 kt. Rain, mainly before 1am. Seas around 5 ft.
Tuesday
SSW wind around 20 kt, with gusts as high as 25 kt. Scattered showers, mainly before 7am. Seas 4 to 5 ft.
Tuesday Night
SSW wind 20 to 25 kt. Increasing clouds. Seas around 6 ft.
Wednesday
SSW wind around 25 kt. Scattered showers before 4pm. Seas around 7 ft.
Wednesday Night
WSW wind 20 to 25 kt. A chance of rain after 4am. Seas 5 to 6 ft.
Thursday
WNW wind around 15 kt, with gusts as high as 20 kt. A chance of showers before 10am. Seas around 5 ft.
Thursday Night
WNW wind 10 to 15 kt. Mostly cloudy. Seas 3 to 4 ft.
Friday
W wind around 10 kt becoming SSW in the morning. Cloudy. Seas 2 to 3 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: 7:39 am AKDT Jun 29, 2026
Forecast Valid: 8am AKDT Jun 29, 2026-6pm AKDT Jul 5, 2026
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