Hazardous Weather Conditions

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Anchorage, AK Local Forecast Office

5NM S Chiswell Islands AK

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SSW wind around 15 km/h. Mostly sunny. Seas around 1 m.

      High: 12 °C

      SSW 15km/h
      1m

    • Tonight

      Tonight:SW wind 5 to 10 km/h becoming E after midnight. A chance of rain after 4am.   Seas around 1 m.

      Low: 11 °C

      SW 10km/h
      1m

    • Wednesday

      Wednesday:E wind 30 to 35 km/h increasing to 40 to 45 km/h in the morning. Rain, mainly after 7am. The rain could be heavy at times.   Seas 1 to 2 m.

      High: 12 °C

      ⇑E 45km/h
      1-2m

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday Night

      Wednesday Night:SE wind 10 to 15 km/h becoming variable and less than 5 km/h after midnight. Showers, mainly before 1am.   Seas around 1 m.

      Low: 12 °C

      SE 15km/h⇓
      1m

    • Thursday

      Thursday:NNE wind 5 to 10 km/h becoming variable and less than 5 km/h in the morning. Partly sunny. Seas 1 to 2 m.

      High: 13 °C

      NNE 10km/h⇓
      1-2m

    • Thursday Night

      Thursday Night:WSW wind 10 to 15 km/h. Mostly cloudy. Seas 1 to 2 m.

      Low: 11 °C

      WSW 15km/h
      1-2m

    • Friday

      Friday:S wind around 15 km/h. A chance of rain after 10am.   Seas around 1 m.

      High: 12 °C

      S 15km/h
      1m

    • Friday Night

      Friday Night:ESE wind around 15 km/h. A chance of rain.   Seas around 1 m.

      Low: 11 °C

      ESE 15km/h
      1m

    • Saturday

      Saturday:ENE wind 10 to 15 km/h. A chance of rain.   Seas around 1 m.

      High: 13 °C

      ENE 15km/h
      1m


High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 5:49 am AKDT Jul 15, 2025
Forecast Valid: 1pm AKDT Jul 15, 2025-6pm AKDT Jul 21, 2025

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Detailed Forecast

...SMALL CRAFT ADVISORY WEDNESDAY...

Synopsis: High pressure builds into the Gulf through Wed afternoon. A North Pacific 1019 mb low forms 325 nm SSE of Sand Point Tue morning, and then moves to 115 nm ENE of Sand Point by Wed afternoon at 1012 mb.

This Afternoon
SSW wind around 15 km/h. Mostly sunny. Seas around 1 m.
Tonight
SW wind 5 to 10 km/h becoming E after midnight. A chance of rain after 4am. Seas around 1 m.
Wednesday
E wind 30 to 35 km/h increasing to 40 to 45 km/h in the morning. Rain, mainly after 7am. The rain could be heavy at times. Seas 1 to 2 m.
Wednesday Night
SE wind 10 to 15 km/h becoming variable and less than 5 km/h after midnight. Showers, mainly before 1am. Seas around 1 m.
Thursday
NNE wind 5 to 10 km/h becoming variable and less than 5 km/h in the morning. Partly sunny. Seas 1 to 2 m.
Thursday Night
WSW wind 10 to 15 km/h. Mostly cloudy. Seas 1 to 2 m.
Friday
S wind around 15 km/h. A chance of rain after 10am. Seas around 1 m.
Friday Night
ESE wind around 15 km/h. A chance of rain. Seas around 1 m.
Saturday
ENE wind 10 to 15 km/h. A chance of rain. Seas around 1 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: 5:49 am AKDT Jul 15, 2025
Forecast Valid: 1pm AKDT Jul 15, 2025-6pm AKDT Jul 21, 2025
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