For a brief moment in the 3 p.m. hour, Sea-Tac hit 90 degrees which makes this the 12th day this year reaching 90 officially, tying the record from 2015.
Wednesday will be almost as warm, but with a weak disturbance aloft moving through. A few high clouds could cut down the temperature a degree or two. This disturbance could also set off a few mountain thunderstorms later in the day.
Seattle’s 2021 summer heat dome echoes in King County’s extreme weather plan
The chance of thunderstorms affecting lowland locations looks pretty slim because of a lack of available moisture. Any thunderstorms in the mountains could come with plenty of
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