Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

39NM NW Seguam Island AK

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:W wind around 20 kt. A chance of showers, mainly before 4pm.   Seas around 7 ft.

      High: 40 °F

      W 20kt
      7ft

    • Tonight

      Tonight:WNW wind around 15 kt, with gusts as high as 20 kt. A slight chance of showers before 7pm.   Seas 5 to 6 ft.

      Low: 37 °F

      WNW 15kt
      5-6ft

    • Thursday

      Thursday:W wind 5 to 10 kt becoming ESE 10 to 15 kt in the afternoon. A chance of rain and snow, mainly after 1pm.   Seas around 4 ft.

      High: 41 °F

      ⇑ESE 15kt
      4ft

    • Thursday Night

      Thursday Night:E wind 25 to 35 kt. Rain.   Seas 6 ft building to 11 ft.

      Low: 38 °F

      E 35kt
      Waves Building11ft

    • Friday

      Friday:E wind 10 to 15 kt becoming N in the afternoon. Rain likely.   Seas 7 to 8 ft.

      High: 40 °F

      N 15kt
      7-8ft

    • Friday Night

      Friday Night:NW wind 25 to 30 kt. Rain likely.   Seas 11 to 12 ft.

      Low: 38 °F

      NW 30kt
      11-12ft

    • Saturday

      Saturday:NW wind around 30 kt, with gusts as high as 35 kt. Showers likely, mainly before 10am.   Seas 10 to 11 ft.

      High: 40 °F

      NW 30kt
      10-11ft

    • Saturday Night

      Saturday Night:WNW wind around 25 kt, with gusts as high as 35 kt. Showers.   Seas 10 to 11 ft.

      Low: 37 °F

      WNW 25kt
      10-11ft

    • Sunday

      Sunday:W wind 20 to 25 kt. Showers.   Seas around 10 ft.

      High: 41 °F

      W 25kt
      10ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 6:44 am AKDT May 13, 2026
Forecast Valid: 1pm AKDT May 13, 2026-6pm AKDT May 19, 2026

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Detailed Forecast

...SMALL CRAFT ADVISORY TODAY AND THURSDAY...

Synopsis: A 996 mb complex low centered 20 nm N of Nelson Lagoon moves to 120 nm SW of Kodiak City at 1003 mb as it exits into the western Gulf by Thu morning. A 985 mb North Pacific low moves to 260 nm SE of Shemya by Thu afternoon, continuing to 100 nm SE of Adak at 980 mb by Fri morning.

This Afternoon
W wind around 20 kt. A chance of showers, mainly before 4pm. Seas around 7 ft.
Tonight
WNW wind around 15 kt, with gusts as high as 20 kt. A slight chance of showers before 7pm. Seas 5 to 6 ft.
Thursday
W wind 5 to 10 kt becoming ESE 10 to 15 kt in the afternoon. A chance of rain and snow, mainly after 1pm. Seas around 4 ft.
Thursday Night
E wind 25 to 35 kt. Rain. Seas 6 ft building to 11 ft.
Friday
E wind 10 to 15 kt becoming N in the afternoon. Rain likely. Seas 7 to 8 ft.
Friday Night
NW wind 25 to 30 kt. Rain likely. Seas 11 to 12 ft.
Saturday
NW wind around 30 kt, with gusts as high as 35 kt. Showers likely, mainly before 10am. Seas 10 to 11 ft.
Saturday Night
WNW wind around 25 kt, with gusts as high as 35 kt. Showers. Seas 10 to 11 ft.
Sunday
W wind 20 to 25 kt. Showers. Seas around 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: 6:44 am AKDT May 13, 2026
Forecast Valid: 1pm AKDT May 13, 2026-6pm AKDT May 19, 2026
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