Dangerous Heat Wave for the West; Severe Storms and Heavy Rain for Midwest and Plains

Severe storms and heavy rains are likely in the Upper Midwest and Plains through this evening. A long duration heat wave will build across the West through next week with excessive heat watches/warnings in effect from the Southwest to Northwest. TS Josephine is forecast to pass well north of Puerto Rico and the Virgin Islands while TS Kyle is forecast to move quickly away from land this weekend.
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5NM SSE Annapolis MD

Marine Point Forecast

[NOTICE]
  • Today

    Chance Showers

    NE 23km/hWinds Decreasing
    < 1m
  • Tonight

    Showers Likely

    E 23km/h
    < 1m

    Small Craft Advisory
    Small Craft Advisory

  • Sunday

    Showers Likely

    NE 24km/h
    < 1m

    Small Craft Advisory
    Small Craft Advisory

  • Sunday
    Night

    Showers Likely

    NNE 18km/hWinds Decreasing
    < 1m
  • Monday

    Slight Chc Thunderstorms

    N 11km/h
    < 1m
  • Monday
    Night

    Slight Chc Thunderstorms

    SW 13km/h
    < 1m
  • Tuesday

    Sunny

    NW 13km/h
    < 1m
  • Tuesday
    Night

    Partly Cloudy

    SSW 10km/h
    < 1m
  • Wednesday

    Chance Showers

    N 10km/h
    < 1m

Associated Zone Forecast which includes this point

Last Update: 4:52 am EDT Aug 15, 2020
Forecast Valid: 7am EDT Aug 15, 2020-6pm EDT Aug 21, 2020

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Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT FROM THIS EVENING THROUGH SUNDAY

Synopsis: Low pressure will move along a stationary front to our south today through Sunday. Onshore flow ahead of this system will increase tonight and continue into Sunday, with a Small Craft Advisory in effect for that period. A cold front will approach early next week.

Today
NE wind 20 to 23 km/h decreasing to 14 to 17 km/h in the afternoon. A chance of showers, mainly after 3pm. Seas 1 m or less.
Tonight
E wind 21 to 23 km/h, with gusts as high as 34 km/h. Showers likely, mainly after 9pm. Seas 1 m or less.
Sunday
NE wind 21 to 24 km/h, with gusts as high as 39 km/h. Showers likely. Seas 1 m or less.
Sunday Night
NNE wind 15 to 18 km/h decreasing to 11 to 14 km/h after midnight. Showers likely, mainly before 9pm. Seas 1 m or less.
Monday
N wind 8 to 11 km/h becoming NW in the afternoon. A slight chance of showers and thunderstorms after 3pm. Seas 1 m or less.
Monday Night
SW wind 8 to 13 km/h. A slight chance of showers and thunderstorms before 9pm. Seas 1 m or less.
Tuesday
NW wind 10 to 13 km/h. Sunny. Seas 1 m or less.
Tuesday Night
SSW wind 8 to 10 km/h becoming SSE in the evening. Partly cloudy. Seas 1 m or less.
Wednesday
N wind around 10 km/h becoming SE in the afternoon. A chance of showers. Seas 1 m 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: 38.89°N 76.45°W
Last Update: 4:52 am EDT Aug 15, 2020
Forecast Valid: 7am EDT Aug 15, 2020-6pm EDT Aug 21, 2020
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