Dangerous Heat Building in the West; Severe Storms in the Upper Midwest

A long duration heat wave will build across the Southwest, California, and Pacific Northwest. Dangerous heat is also forecast for the Great Basin and South Plains. Severe storms in the Upper Midwest may have locally heavy rain, damaging winds, and very large hail. Heavy rain and flooding will also be possible in the Deep South and Appalachians.

Last Update: 345 PM AKDT Thu Aug 13 2020

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Anchorage, AK Local Forecast Office

15NM NW Hinchinbrook Island AK

Marine Zone Forecast

Synopsis: Weakening high pressure lingers over the North Gulf Coast through Sat afternoon. A 1008 mb low 275 nm South of Kodiak City moves to 280 nm West of Sitka at 1001 mb by Sat afternoon. Its front extends across the Southern Gulf through Sat afternoon.

Variable wind less than 10 kt. Seas 2 ft.
Variable wind less than 10 kt becoming W 10 kt in the afternoon. Seas 2 ft.
Fri Night
W wind 10 kt becoming NW 15 kt after midnight. Seas 2 ft.
N wind 20 kt. Seas 3 ft.
Sat Night
N wind 15 kt. Seas 2 ft.
Sun Through Tue
E wind 10 kt. Seas 2 ft.
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Last Update: 345 PM AKDT Thu Aug 13 2020
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