Wintery Weather Stretching from the West Coast to the Great Lakes

Lake Effect Snow Warnings are in effect for the Great Lakes with 2 to 3 feet storm total snow possible. Arctic Air extends across much of the U.S. with breezy winds and temperatures 15-35 degrees below normal in the Northern Plains. Out west, heavy mountain snow and some low elevation snow and freezing rain forecast as a warmer weather system interacts with the Arctic airmass.
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Hazardous Weather Conditions

For More Weather Information:

Key West, FL Local Forecast Office

10NM W Florida Bay FL

Marine Point Forecast

[NOTICE]
  • Today

    Isolated Showers

    NW 10kt
    < 1ft

    High: 80 °F

  • Tonight

    Scattered Showers

    NNE 20kt
    < 1ft

    Low: 69 °F

  • Friday

    Isolated Showers

    NNE 20kt
    < 1ft

    High: 75 °F

  • Friday
    Night

    Scattered Showers

    NNE 20kt
    < 1ft

    Low: 68 °F

  • Saturday

    Scattered Showers

    NE 25kt
    < 1ft

    High: 75 °F

  • Saturday
    Night

    Scattered Showers

    ENE 25kt
    < 1ft

    Low: 71 °F

  • Sunday

    Scattered Showers

    E 20kt
    < 1ft

    High: 78 °F

  • Sunday
    Night

    Scattered Showers

    ESE 15kt
    < 1ft

    Low: 75 °F

  • Monday

    Isolated Showers

    ESE 10kt
    < 1ft

    High: 80 °F


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:15 am EST Dec 8, 2016
Forecast Valid: 10am EST Dec 8, 2016-6pm EST Dec 14, 2016

View Nearby Observations

Detailed Forecast

SEAS ARE GIVEN AS SIGNIFICANT WAVE HEIGHT...WHICH IS THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES. INDIVIDUAL WAVES MAY BE MORE THAN TWICE THE SIGNIFICANT WAVE HEIGHT.

Synopsis: AN ARCTIC AIR MASS WILL EXPAND SOUTHWARD ACROSS MUCH OF THE CENTRAL AND EASTERN UNITED STATES TODAY. AHEAD OF THIS SYSTEM... A WEAK PRESSURE PATTERN WILL PERSIST ACROSS THE FLORIDA KEYS AND ADJACENT COASTAL WATERS THIS MORNING. A COLD FRONT LIKELY WILL REACH THE FLORIDA KEYS THIS EVENING...RESULTING IN STRONG NORTHEAST TO EAST BREEZES FRIDAY THROUGH SUNDAY.

THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF DECEMBER 8...

20 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY. 16 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS. 12 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST. 11 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY. 12 NM SOUTH OF SOMBRERO KEY LIGHT...OFF MARATHON. 12 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA. 6 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO. LESS THAN 1 NM EAST OF CARYSFORT REEF LIGHT...OFF OCEAN REEF.

GULF STREAM INFORMATION COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.

Today
NNE wind 5 to 10 kt becoming NW in the afternoon. Isolated showers. Seas 1 ft or less.
Tonight
NNW wind 10 to 20 kt becoming NNE in the evening. Scattered showers. Seas 1 ft or less.
Friday
NNE wind around 20 kt. Isolated showers. Seas 1 ft or less.
Friday Night
NNE wind around 20 kt. Scattered showers. Seas 1 ft or less.
Saturday
NE wind 20 to 25 kt. Scattered showers. Seas 1 ft or less.
Saturday Night
ENE wind around 25 kt, with gusts as high as 30 kt. Scattered showers. Seas 1 ft or less.
Sunday
E wind 15 to 20 kt. Scattered showers. Seas 1 ft or less.
Sunday Night
ESE wind 10 to 15 kt. Scattered showers. Seas 1 ft or less.
Monday
ESE wind around 10 kt. Isolated showers. Seas 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: 25.03°N 80.94°W
Last Update: 8:15 am EST Dec 8, 2016
Forecast Valid: 10am EST Dec 8, 2016-6pm EST Dec 14, 2016
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