Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]
    • Tuesday

      Tuesday:WSW wind 20 to 25 kt. Showers likely, mainly before 10am.   Seas 5 ft building to 8 ft.

      High: 41 °F

      WSW 25kt
      Waves Building8ft

      Small Craft Advisory
      Small Craft Advisory

    • Tuesday Night

      Tuesday Night:SW wind 15 to 25 kt becoming S after midnight. Rain, mainly after 1am.   Seas 6 to 7 ft.

      Low: 38 °F

      S 25kt
      6-7ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday

      Wednesday:SSE wind 25 to 35 kt becoming SSW in the morning. Rain, mainly after 1pm.   Seas 7 to 9 ft.

      High: 42 °F

      SSE 35kt
      7-9ft

    • Wednesday Night

      Wednesday Night:W wind 25 to 30 kt. Showers, mainly before 4am.   Seas 6 to 7 ft.

      Low: 38 °F

      W 30kt
      6-7ft

    • Thursday

      Thursday:W wind around 30 kt. A chance of showers before 7am.   Seas 7 to 9 ft.

      High: 41 °F

      W 30kt
      7-9ft

    • Thursday Night

      Thursday Night:WSW wind around 25 kt. A chance of showers after 4am.   Seas 7 to 9 ft.

      Low: 38 °F

      WSW 25kt
      7-9ft

    • Friday

      Friday:W wind 20 to 25 kt. A chance of showers before 10am.   Seas 7 to 8 ft.

      High: 41 °F

      W 25kt
      7-8ft

    • Friday Night

      Friday Night:NW wind around 15 kt, with gusts as high as 20 kt. A chance of showers.   Seas 5 to 6 ft.

      Low: 38 °F

      NW 15kt
      5-6ft

    • Saturday

      Saturday:NW wind around 20 kt. A chance of showers.   Seas around 4 ft.

      High: 41 °F

      NW 20kt
      4ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 10:08 pm AKDT May 18, 2026
Forecast Valid: 2am AKDT May 19, 2026-6pm AKDT May 25, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

Synopsis: A 992 mb low 30 nm NE of Cold Bay moves to 40 nm SE of Cape Newenham at 997 mb Mon night before moving inland. A 986 mb low 260 nm SW of Saint Paul remains nearly stationary before dissipating Tue night. A 978 mb North Pacific low 175 S of Shemya Tue afternoon moves to 40 nm N of Adak at 979 mb for Wed afternoon.

Tuesday
WSW wind 20 to 25 kt. Showers likely, mainly before 10am. Seas 5 ft building to 8 ft.
Tuesday Night
SW wind 15 to 25 kt becoming S after midnight. Rain, mainly after 1am. Seas 6 to 7 ft.
Wednesday
SSE wind 25 to 35 kt becoming SSW in the morning. Rain, mainly after 1pm. Seas 7 to 9 ft.
Wednesday Night
W wind 25 to 30 kt. Showers, mainly before 4am. Seas 6 to 7 ft.
Thursday
W wind around 30 kt. A chance of showers before 7am. Seas 7 to 9 ft.
Thursday Night
WSW wind around 25 kt. A chance of showers after 4am. Seas 7 to 9 ft.
Friday
W wind 20 to 25 kt. A chance of showers before 10am. Seas 7 to 8 ft.
Friday Night
NW wind around 15 kt, with gusts as high as 20 kt. A chance of showers. Seas 5 to 6 ft.
Saturday
NW wind around 20 kt. A chance of showers. Seas around 4 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: 10:08 pm AKDT May 18, 2026
Forecast Valid: 2am AKDT May 19, 2026-6pm AKDT May 25, 2026
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