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Anchorage, AK Local Forecast Office

5NM S Chiswell Islands AK

Marine Point Forecast

[NOTICE]
    • Friday

      Friday:NE wind 15 to 25 km/h becoming ENE 5 to 10 km/h in the afternoon. Winds could gust as high as 35 km/h. Mostly sunny. Seas 1 to 2 m.

      High: 8 °C

      NE 25km/h⇓
      1-2m

    • Friday Night

      Friday Night:SW wind around 15 km/h. A chance of showers, mainly after 1am.   Seas around 1 m.

      Low: 7 °C

      SW 15km/h
      1m

    • Saturday

      Saturday:Variable winds 5 km/h or less. Mostly cloudy. Seas around 1 m.

      High: 9 °C

      Light Wind
      1m

    • Saturday Night

      Saturday Night:Variable winds less than 5 km/h becoming ENE 5 to 10 km/h after midnight. Mostly cloudy. Seas around 1 m.

      Low: 7 °C

      ⇑ENE 10km/h
      1m

    • Sunday

      Sunday:E wind 15 to 20 km/h, with gusts as high as 30 km/h. Mostly cloudy. Seas around 1 m.

      High: 8 °C

      E 20km/h
      1m

    • Sunday Night

      Sunday Night:ENE wind 25 to 35 km/h, with gusts as high as 40 km/h. A chance of rain before 4am.   Seas around 2 m.

      Low: 7 °C

      ENE 35km/h
      2m

    • Memorial Day

      Memorial Day:ENE wind 25 to 30 km/h, with gusts as high as 50 km/h. A chance of rain after 10am.   Seas around 2 m.

      High: 8 °C

      ENE 30km/h
      2m

    • Monday Night

      Monday Night:ENE wind 30 to 35 km/h, with gusts as high as 40 km/h. A chance of rain.   Seas around 2 m.

      Low: 7 °C

      ENE 35km/h
      2m

    • Tuesday

      Tuesday:ENE wind 25 to 35 km/h. A chance of rain.   Seas around 2 m.

      High: 8 °C

      ENE 35km/h
      2m


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:47 am AKDT May 23, 2025
Forecast Valid: 4am AKDT May 23, 2025-6pm AKDT May 29, 2025

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Detailed Forecast


Synopsis: A 998 mb low 290 nm SE of Sitkinak Island moves to 225 nm W of Port Alexander at 997 mb by Sun morning. Its front moves across the Gulf through Sun morning.

Friday
NE wind 15 to 25 km/h becoming ENE 5 to 10 km/h in the afternoon. Winds could gust as high as 35 km/h. Mostly sunny. Seas 1 to 2 m.
Friday Night
SW wind around 15 km/h. A chance of showers, mainly after 1am. Seas around 1 m.
Saturday
Variable winds 5 km/h or less. Mostly cloudy. Seas around 1 m.
Saturday Night
Variable winds less than 5 km/h becoming ENE 5 to 10 km/h after midnight. Mostly cloudy. Seas around 1 m.
Sunday
E wind 15 to 20 km/h, with gusts as high as 30 km/h. Mostly cloudy. Seas around 1 m.
Sunday Night
ENE wind 25 to 35 km/h, with gusts as high as 40 km/h. A chance of rain before 4am. Seas around 2 m.
Memorial Day
ENE wind 25 to 30 km/h, with gusts as high as 50 km/h. A chance of rain after 10am. Seas around 2 m.
Monday Night
ENE wind 30 to 35 km/h, with gusts as high as 40 km/h. A chance of rain. Seas around 2 m.
Tuesday
ENE wind 25 to 35 km/h. A chance of rain. Seas around 2 m.

*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: 3:47 am AKDT May 23, 2025
Forecast Valid: 4am AKDT May 23, 2025-6pm AKDT May 29, 2025
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