Deep Cold Trough Meets Gulf Moisture with Significant Impacts Across the Western and Central U.S.

A deep trough and associated cold front is bringing much below normal temperatures in the west, with low elevation snows. Strong winds and widespread snow, will impact the Great Basin, western mountains, and the Plains. The slowing front, will bring prolonged waves of heavy rain across the Mississippi Valley to the Great Lakes. Significant icing forecast north of the heavy rain. Big warm up east.
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Key West, FL Local Forecast Office

16NM ESE The Elbow Light FL

Marine Point Forecast

[NOTICE]
  • Washington's
    Birthday

    Isolated Showers

    E 20kt
    6ft

    High: 78 °F

    Small Craft Advisory
    Small Craft Advisory

  • Tonight

    Showers Likely

    E 25kt
    7-8ft

    Low: 76 °F

    Small Craft Advisory
    Small Craft Advisory

  • Tuesday

    Isolated Showers

    ESE 20kt
    5-7ft

    High: 79 °F

  • Tuesday
    Night

    Partly Cloudy

    E 20kt
    5-7ft

    Low: 74 °F

  • Wednesday

    Mostly Sunny

    E 20kt
    6ft

    High: 78 °F

  • Wednesday
    Night

    Isolated Showers

    E 25kt
    7ft

    Low: 75 °F

  • Thursday

    Isolated Showers

    E 20kt
    6ft

    High: 78 °F

  • Thursday
    Night

    Isolated Showers

    E 20kt
    6-7ft

    Low: 75 °F

  • Friday

    Isolated Showers

    E 20kt
    5-7ft

    High: 77 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:15 pm CST Feb 19, 2018
Forecast Valid: 4pm CST Feb 19, 2018-6pm CST Feb 25, 2018

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Detailed Forecast


Synopsis: An Atlantic ridge of high pressure will extend across the Southeastern United States tonight through Friday, resulting in fresh to strong east to southeast breezes. This ridge of high pressure will shift southward Friday night through Saturday night.

The Approximate Shoreward Edge of the Gulf Stream current, as of February 17th, 2018...

31 NM South of Dry Tortugas Light, on Loggerhead Key. 10 NM South of Cosgrove Shoal Light, off the Marquesas Keys. 3 NM South of Sand Key Light, off Key West. 7 NM South of Looe Key, off Big Pine Key. 9 NM South of Sombrero Key Light, off Marathon. 13 NM Southeast of Alligator Reef Light, off Islamorada. 12 NM Southeast of Molasses Reef Light, off Key Largo. 6 NM East of Carysfort Reef Light, off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

Washington's Birthday
E wind around 20 kt. Isolated showers. Seas around 6 ft.
Tonight
E wind 20 to 25 kt. Showers likely. Seas 7 to 8 ft.
Tuesday
ESE wind around 20 kt. Isolated showers. Seas 5 to 7 ft.
Tuesday Night
E wind around 20 kt. Partly cloudy. Seas 5 to 7 ft.
Wednesday
E wind around 20 kt. Mostly sunny. Seas around 6 ft.
Wednesday Night
E wind 20 to 25 kt. Isolated showers. Seas around 7 ft.
Thursday
E wind around 20 kt. Isolated showers. Seas around 6 ft.
Thursday Night
E wind around 20 kt. Isolated showers. Seas 6 to 7 ft.
Friday
E wind around 20 kt. Isolated showers. Seas 5 to 7 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: 25.01°N 80°W
Last Update: 2:15 pm CST Feb 19, 2018
Forecast Valid: 4pm CST Feb 19, 2018-6pm CST Feb 25, 2018
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