Severe Thunderstorms in the Upper Midwest; Excessive Heat in the Central U.S.

Severe thunderstorms, capable of severe wind (locally exceeding hurricane force), very large hail, flash flooding, and a few tornadoes, are possible late this afternoon into tonight across portions of the of the Upper Midwest into the southern Great Lakes. Excessive heat covers much of the central third of the country and is expected to persist into the weekend over the south-central states.
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For More Weather Information:

Seattle, WA Local Forecast Office

8NM SW Seattle WA

Marine Point Forecast

[NOTICE]

This
Afternoon
NNE 7kt
< 1ft
Tonight

NNE 9kt
< 1ft
Thursday

NNE 10kt
< 1ft
Thursday
Night
NNE 10kt
< 1ft
Friday

NNE 10kt
< 1ft
Friday
Night
NNE 10kt
< 1ft
Saturday

Light Wind
< 1ft
Saturday
Night
Light Wind
< 1ft
Sunday

Light Wind
< 1ft

Associated Zone Forecast which includes this point

Last Update: 3:14 am PDT Jul 28, 2021
Forecast Valid: 12pm PDT Jul 28, 2021-6pm PDT Aug 3, 2021

View Nearby Observations

Detailed Forecast

Synopsis: High pressure offshore with thermal low pressure east of the Cascades will result in varying degrees of onshore flow for much of the upcoming week.

This Afternoon

Variable winds less than 5 kt becoming NNE 5 to 7 kt. Mostly sunny. Wind waves 1 ft or less.

Tonight

NNE wind 5 to 9 kt becoming variable and less than 5 kt in the evening. Mostly clear. Wind waves 1 ft or less.

Thursday

Variable winds less than 5 kt becoming NNE 5 to 10 kt in the afternoon. Sunny. Wind waves 1 ft or less.

Thursday Night

NNE wind 5 to 10 kt becoming variable and less than 5 kt in the evening. Mostly clear. Wind waves 1 ft or less.

Friday

Variable winds less than 5 kt becoming NNE 5 to 10 kt in the afternoon. Sunny. Wind waves 1 ft or less.

Friday Night

NNE wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Mostly clear. Wind waves 1 ft or less.

Saturday

Variable winds 5 kt or less. Mostly sunny. Wind waves 1 ft or less.

Saturday Night

Variable winds 5 kt or less. Mostly cloudy. Wind waves 1 ft or less.

Sunday

Variable winds 5 kt or less. Mostly cloudy. Wind waves 1 ft or less.

*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.