Dangerous Heat Building in the West; Severe Storms in the Upper Midwest

A long duration heat wave will build across the Southwest, California, and Pacific Northwest. Dangerous heat is also forecast for the Great Basin and South Plains. Severe storms in the Upper Midwest may have locally heavy rain, damaging winds, and very large hail. Heavy rain and flooding will also be possible in the Deep South and Appalachians.
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Hazardous Weather Conditions

For More Weather Information:

San Juan, PR Local Forecast Office

57NM SSW Mayaguez PR

Marine Point Forecast

[NOTICE]
  • Overnight

    Scattered Showers

    E 18kt
    4ft

    Low: 82 °F

  • Friday

    Isolated Showers

    E 16kt
    4ft

    High: 84 °F

  • Friday
    Night

    Isolated Showers

    NE 16kt
    4ft

    Low: 82 °F

  • Saturday

    Isolated Showers

    E 13kt
    3-4ft

    High: 83 °F

  • Saturday
    Night

    Isolated Showers

    E 11kt
    3ft

    Low: 82 °F

  • Sunday

    Isolated Showers

    ESE 8kt
    3ft

    High: 83 °F

  • Sunday
    Night

    Scattered Showers

    E 13kt
    3ft

    Low: 83 °F

  • Monday

    Scattered Showers

    E 15kt
    3ft

    High: 84 °F

  • Monday
    Night

    Partly Cloudy

    E 18kt
    3-4ft

    Low: 83 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:30 pm EDT Aug 13, 2020
Forecast Valid: 2am EDT Aug 14, 2020-6pm EDT Aug 20, 2020

View Nearby Observations

Detailed Forecast

...SMALL CRAFT SHOULD EXERCISE CAUTION...

Overnight
E wind around 18 kt, with gusts as high as 24 kt. Scattered showers. Seas around 4 ft.
Friday
E wind 14 to 16 kt, with gusts as high as 22 kt. Isolated showers before 9am. Seas around 4 ft.
Friday Night
NE wind 11 to 16 kt, with gusts as high as 22 kt. Isolated showers between 9pm and 3am. Seas around 4 ft.
Saturday
E wind around 13 kt. Isolated showers. Seas 3 to 4 ft.
Saturday Night
E wind around 11 kt. Isolated showers. Seas around 3 ft.
Sunday
ESE wind around 8 kt. Isolated showers. Seas around 3 ft.
Sunday Night
E wind 11 to 13 kt. Scattered showers. Seas around 3 ft.
Monday
E wind 13 to 15 kt, with gusts as high as 21 kt. Scattered showers. Seas around 3 ft.
Monday Night
E wind 15 to 18 kt, with gusts as high as 24 kt. Partly cloudy. Seas 3 to 4 ft.

*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: 17.41°N 67.69°W
Last Update: 7:30 pm EDT Aug 13, 2020
Forecast Valid: 2am EDT Aug 14, 2020-6pm EDT Aug 20, 2020
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