Flash Flood Watches in Southeast and Tennessee Valley; Critical Fire Weather in California; Severe Weather in Upper Midwest

Flash flood watches are in effect today in parts of the Southeast and Tennessee Valley from organized areas of heavy to excessive rainfall. Meanwhile, critical fire weather conditions are likely across northern California with offshore winds and dry conditions. Finally, a strong cold front will produce severe thunderstorms across the Upper to Mid Mississippi Valley.
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Last Update: 837 AM PDT Mon Sep 20 2021

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Seattle, WA Local Forecast Office

18NM WNW Hoquiam WA

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON PDT TODAY...

Synopsis: High pressure will move over the area through Tuesday. A weak front will break up over the coastal waters Wednesday. High pressure will rebuild over the waters Thursday and Friday.

Today
SE wind to 10 kt becoming S in the afternoon. Wind waves 1 ft or less. W swell 10 ft at 12 seconds subsiding to 8 ft at 12 seconds in the afternoon.
Tonight
NW wind to 10 kt becoming NE after midnight. Wind waves 1 ft or less. W swell 6 ft at 10 seconds.
Tue
NE wind 5 to 15 kt. Wind waves 2 ft or less. W swell 4 ft at 10 seconds.
Tue Night
N wind 10 to 20 kt easing to 5 to 15 kt after midnight. Wind waves 1 to 3 ft. W swell 6 ft at 11 seconds.
Wed
NW wind 5 to 15 kt. Wind waves 2 ft or less. W swell 6 ft at 12 seconds.
Wed Night
NW wind 10 to 20 kt becoming N 5 to 15 kt after midnight. Wind waves 1 to 3 ft. W swell 7 ft at 13 seconds.
Thu
Light wind becoming N 5 to 15 kt. Wind waves 2 ft or less. W swell 5 ft.
Fri
N wind 5 to 15 kt becoming NW 15 to 25 kt. Wind waves 2 ft or less building to 2 to 4 ft. W swell 4 ft.
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ABOUT THIS FORECAST

Last Update: 837 AM PDT Mon Sep 20 2021
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