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

23NM N Seattle WA

Marine Point Forecast

[NOTICE]
  • Today

    Mostly Sunny

    Winds IncreasingNW 6kt
    < 1ft
  • Tonight

    Partly Cloudy

    NW 9ktWinds Decreasing
    < 1ft
  • Thursday

    Sunny

    Winds IncreasingNW 7kt
    < 1ft
  • Thursday
    Night

    Mostly Clear

    NW 9ktWinds Decreasing
    < 1ft
  • Friday

    Sunny

    Winds IncreasingNW 8kt
    < 1ft
  • Friday
    Night

    Partly Cloudy

    NW 9ktWinds Decreasing
    < 1ft
  • Saturday

    Mostly Sunny

    N 7ktWinds Decreasing
    < 1ft
  • Saturday
    Night

    Mostly Cloudy

    NW 7ktWinds Decreasing
    < 1ft
  • Sunday

    Mostly Cloudy

    Light Wind
    < 1ft

Associated Zone Forecast which includes this point

Last Update: 3:14 am PDT Jul 28, 2021
Forecast Valid: 10am PDT Jul 28, 2021-6pm PDT Aug 3, 2021

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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.

Today
Variable winds less than 5 kt becoming NW around 6 kt in the afternoon. Mostly sunny. Wind waves 1 ft or less.
Tonight
NW wind 5 to 9 kt becoming variable and less than 5 kt. Partly cloudy. Wind waves 1 ft or less.
Thursday
Variable winds less than 5 kt becoming NW 5 to 7 kt in the afternoon. Sunny. Wind waves 1 ft or less.
Thursday Night
NW wind 5 to 9 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 NW 5 to 8 kt in the afternoon. Sunny. Wind waves 1 ft or less.
Friday Night
NW wind 5 to 9 kt becoming variable and less than 5 kt. Partly cloudy. Wind waves 1 ft or less.
Saturday
N wind 5 to 7 kt becoming variable and less than 5 kt. Mostly sunny. Wind waves 1 ft or less.
Saturday Night
NW wind 5 to 7 kt becoming variable and less than 5 kt in the evening. Mostly cloudy. Wind waves 1 ft or less.
Sunday
Variable winds 5 kt or less. Mostly cloudy. Wind waves 1 ft or less.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 48°N 122.28°W
Last Update: 3:14 am PDT Jul 28, 2021
Forecast Valid: 10am PDT Jul 28, 2021-6pm PDT Aug 3, 2021
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RADAR & SATELLITE IMAGES

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