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39NM NW Seguam Island AK

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 8:41 pm AKDT Jul 3, 2026
Forecast Valid: 11pm AKDT Jul 3, 2026-6pm AKDT Jul 10, 2026

...SMALL CRAFT ADVISORY SATURDAY AND SATURDAY NIGHT...

Synopsis: A 1002 mb North Pacific low moves to 170 nm SW of Amchitka Sat night, then to 40 nm S of Shemya Sun afternoon.

Overnight

Variable winds 5 kt or less. Patchy fog. Seas around 3 ft.

Independence Day

ENE wind around 20 kt. A slight chance of rain after 10am. Patchy fog. Seas 3 to 4 ft.

Saturday Night

E wind around 20 kt. A slight chance of rain. Areas of fog. Seas around 4 ft.

Sunday

E wind around 20 kt. Rain likely, mainly after 1pm. Areas of fog. Seas 4 to 5 ft.

Sunday Night

E wind around 15 kt. Rain, mainly before 1am. Areas of fog. Seas around 5 ft.

Monday

SE wind 5 to 10 kt becoming WSW in the afternoon. A chance of rain before 4pm. Areas of fog. Seas 3 to 4 ft.

Monday Night

SW wind around 15 kt. A chance of showers after 10pm. Areas of fog before 10pm. Seas around 3 ft.

Tuesday

WSW wind 15 to 20 kt. Cloudy. Seas 3 to 5 ft.

Tuesday Night

W wind around 20 kt, with gusts as high as 25 kt. Mostly cloudy. Seas around 4 ft.

*Notices:

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.
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.