Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

5NM S Chiswell Islands AK

Marine Point Forecast

[NOTICE]
    • Today

      Today:NE wind around 10 kt. A slight chance of snow showers after 3pm.   Seas 3 ft building to 7 ft.

      High: 32 °F

      NE 10kt
      Waves Building7ft

    • Tonight

      Tonight:NE wind 5 to 10 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 8 ft subsiding to 5 ft.

      Low: 31 °F

      NE 10kt⇓
      8ftWaves Subsiding

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday

      Wednesday:NNE wind 10 to 15 kt increasing to 15 to 20 kt in the morning. Mostly sunny. Seas 5 to 7 ft.

      High: 32 °F

      ⇑NNE 20kt
      5-7ft

    • Wednesday Night

      Wednesday Night:NNE wind 15 to 20 kt. Mostly clear. Seas 5 to 6 ft.

      Low: 30 °F

      NNE 20kt
      5-6ft

    • Thursday

      Thursday:N wind 15 to 20 kt decreasing to 5 to 10 kt in the afternoon. Sunny. Seas 6 ft subsiding to 3 ft.

      High: 32 °F

      N 20kt⇓
      6ftWaves Subsiding

    • Thursday Night

      Thursday Night:N wind 5 to 10 kt becoming WNW after midnight. Mostly clear. Seas 3 to 4 ft.

      Low: 31 °F

      WNW 10kt
      3-4ft

    • Friday

      Friday:WNW wind around 10 kt. Sunny. Seas 3 to 4 ft.

      High: 37 °F

      WNW 10kt
      3-4ft

    • Friday Night

      Friday Night:NNW wind 10 to 20 kt. Clear. Seas 3 to 4 ft.

      Low: 34 °F

      NNW 20kt
      3-4ft

    • Saturday

      Saturday:N wind around 20 kt. Sunny. Seas 4 to 6 ft.

      High: 38 °F

      N 20kt
      4-6ft


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:37 am AKST Dec 9, 2025
Forecast Valid: 5am AKST Dec 9, 2025-6pm AKST Dec 15, 2025

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Detailed Forecast

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

Synopsis: A 995 mb low 150 nm SE of Middleton Island will weaken and be absorbed by a low exiting into the eastern Gulf. A through moving south through the state will generate a new 1007 mb low 120 nm S of Seward Wed afternoon.

Today
NE wind around 10 kt. A slight chance of snow showers after 3pm. Seas 3 ft building to 7 ft.
Tonight
NE wind 5 to 10 kt becoming variable and less than 5 kt in the evening. Partly cloudy. Seas 8 ft subsiding to 5 ft.
Wednesday
NNE wind 10 to 15 kt increasing to 15 to 20 kt in the morning. Mostly sunny. Seas 5 to 7 ft.
Wednesday Night
NNE wind 15 to 20 kt. Mostly clear. Seas 5 to 6 ft.
Thursday
N wind 15 to 20 kt decreasing to 5 to 10 kt in the afternoon. Sunny. Seas 6 ft subsiding to 3 ft.
Thursday Night
N wind 5 to 10 kt becoming WNW after midnight. Mostly clear. Seas 3 to 4 ft.
Friday
WNW wind around 10 kt. Sunny. Seas 3 to 4 ft.
Friday Night
NNW wind 10 to 20 kt. Clear. Seas 3 to 4 ft.
Saturday
N wind around 20 kt. Sunny. Seas 4 to 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: 59.52°N 149.63°W
Last Update: 2:37 am AKST Dec 9, 2025
Forecast Valid: 5am AKST Dec 9, 2025-6pm AKST Dec 15, 2025
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