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: 820 PM PDT Thu Aug 13 2020

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Portland, OR Local Forecast Office

9NM SW Newport OR

Marine Zone Forecast


...SMALL CRAFT ADVISORY IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY MORNING...
Synopsis: High pressure will remain over the waters through Saturday with thermal low pressure over the south Oregon coast. A southerly wind reversal is expected to develop over the south Oregon waters Saturday evening and spread northward overnight. High pressure becomes centered over the inner waters Sunday. Northerly winds look to return by next Tuesday.

Rest Of Tonight
N wind 10 to 15 kt. Wind waves N 3 ft at 4 seconds. NW swell 3 ft at 9 seconds.
Fri
N wind 10 to 15 kt with gusts to 20 kt, rising to 15 to 20 kt with gusts to 25 kt in the afternoon. Wind waves N 4 ft at 5 seconds. W swell 3 ft at 8 seconds.
Fri Night
N wind 20 to 25 kt, easing to 15 to 20 kt after midnight. Wind waves N 5 ft at 6 seconds. W swell 4 ft at 8 seconds.
Sat
N wind 15 to 20 kt, easing to 10 to 15 kt in the afternoon. Wind waves N 4 ft at 5 seconds. NW swell 4 ft at 8 seconds.
Sat Night
N wind 10 to 15 kt with gusts to 20 kt, becoming E less than 10 kt after midnight. Wind waves N 4 ft at 4 seconds, shifting to the E 2 ft at 4 seconds after midnight. NW swell 4 ft at 8 seconds.
Sun
S wind to 10 kt with gusts to 15 kt. Wind waves 3 ft. NW swell 4 ft.
Sun Night
S wind to 10 kt with gusts to 15 kt. Wind waves 3 ft. NW swell 4 ft.
Mon
SW wind to 10 kt. Wind waves 2 ft. W swell 4 ft.
Tue
NW wind to 10 kt. Wind waves 2 ft. W swell 3 ft.
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ABOUT THIS FORECAST

Last Update: 820 PM PDT Thu Aug 13 2020
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