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.
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Last Update: 722 PM PDT Thu Aug 13 2020

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Seattle, WA Local Forecast Office

42NM NE Port Angeles WA

Marine Zone Forecast


Synopsis: High pressure over the northeastern Pacific and lower pressure inland will maintain onshore flow through the Strait of Juan de Fuca and northerly winds over the coastal waters through Friday. Thermal low pressure builds up Oregon coast late Friday and expands over Western Washington late Saturday into Sunday for brief offshore flow.

Tonight
S wind 10 to 20 kt. Wind waves 1 to 3 ft.
Fri
S wind 5 to 15 kt becoming W in the afternoon. Wind waves 2 ft or less.
Fri Night
SW wind 5 to 15 kt easing to 10 kt after midnight. Wind waves 2 ft or less.
Sat
NW wind 5 to 15 kt. Wind waves 2 ft or less.
Sat Night
NW wind 5 to 15 kt. Wind waves 2 ft or less.
Sun
N wind 5 to 15 kt becoming NW to 10 kt in the afternoon. Wind waves 2 ft or less.
Sun Night
S wind to 10 kt. Wind waves 1 ft or less.
Mon
S wind to 10 kt becoming SW. Wind waves 1 ft or less.
Tue
S wind to 10 kt becoming SW. Wind waves 1 ft or less.
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ABOUT THIS FORECAST

Last Update: 722 PM PDT Thu Aug 13 2020
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