Severe Thunderstorm and Heavy Rain Threat Along the East Coast

Severe thunderstorms capable of widespread damaging winds and a few tornadoes will shift across the Mid-Atlantic and Southeast states today and tonight. Heavy rainfall and a risk of flash flooding is also present as tropical moisture streams north along the East Coast. The highest threat exists from the Carolinas into New England.
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For More Weather Information:

Key West, FL Local Forecast Office

3NM SSW Alligator Reef Light FL

Marine Point Forecast

[NOTICE]
  • Today

    Showers Likely

    S 20kt
    5ft

    High: 82 °F

    Small Craft Advisory
    Small Craft Advisory

  • Tonight

    Showers Likely

    W 20kt
    5-6ft

    Low: 73 °F

  • Saturday

    Scattered Showers

    WNW 15kt
    3-4ft

    High: 78 °F

  • Saturday
    Night

    Mostly Clear

    WNW 15kt
    2-3ft

    Low: 70 °F

  • Sunday

    Sunny

    NNW 10kt
    2ft

    High: 77 °F

  • Sunday
    Night

    Mostly Clear

    ENE 10kt
    2ft

    Low: 73 °F

  • Monday

    Sunny

    NE 15kt
    3ft

    High: 79 °F

  • Monday
    Night

    Mostly Clear

    ENE 20kt
    4ft

    Low: 74 °F

  • Tuesday

    Isolated Showers

    ENE 15kt
    3-4ft

    High: 80 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:15 am EDT Apr 19, 2019
Forecast Valid: 11am EDT Apr 19, 2019-6pm EDT Apr 25, 2019

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Detailed Forecast


Synopsis: A cold front extending from the extreme northwest portion of the Florida panhandle southward to the Yucatan Peninsula early this morning, will plow eastward and across our region from early this afternoon through tonight. In wake of the cold front, high pressure in the Gulf of Mexico will expand and track eastward across the Sunshine State and the Southeast United States this weekend and into early next week.

The Approximate Shoreward Edge of the Gulf Stream as of April 18...

30 NM South of Dry Tortugas Light...on Loggerhead Key. 8 NM South of Cosgrove Shoal Light...off the Marquesas Keys. 7 NM South of Sand Key Light...off Key West. 11 NM South of Looe Key...off Big Pine Key. 11 NM South of Sombrero Key Light...off Marathon. 4 NM Southeast of Alligator Reef Light...off Islamorada. 2 NM Southeast of Molasses Reef Light...off Key Largo. 2 NM East of Carysfort Reef Light...off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

Today
S wind 15 to 20 kt. Showers likely and possibly a thunderstorm after 3pm. Seas around 5 ft.
Tonight
SSW wind 15 to 20 kt becoming W after midnight. Showers likely and possibly a thunderstorm before 2am, then scattered showers. Seas 5 to 6 ft.
Saturday
WNW wind around 15 kt. Scattered showers before 8am. Seas 3 to 4 ft.
Saturday Night
WNW wind around 15 kt. Mostly clear. Seas 2 to 3 ft.
Sunday
NNW wind 5 to 10 kt. Sunny. Seas around 2 ft.
Sunday Night
NW wind 5 to 10 kt becoming E in the evening. Mostly clear. Seas around 2 ft.
Monday
NE wind around 15 kt. Sunny. Seas around 3 ft.
Monday Night
ENE wind 15 to 20 kt. Mostly clear. Seas around 4 ft.
Tuesday
ENE wind around 15 kt. Isolated showers. 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: 24.79°N 80.66°W
Last Update: 10:15 am EDT Apr 19, 2019
Forecast Valid: 11am EDT Apr 19, 2019-6pm EDT Apr 25, 2019
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