National Weather Service United States Department of Commerce

Developing storm will spread rain across eastern U.S.; thunderstorms in the Southeast

A storm system developing in the South will move up the Mississippi River Valley on Sunday bringing rainfall to much of the eastern U.S., along with thunderstorms in the southeastern states. Some of the thunderstorms in the Southeast could produce large hail, damaging wind and heavy rain.
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Last Update: 419 PM EST SAT NOV 22 2014

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Florida Bay including Barnes Sound Blackwater Sound and Buttonwood Sound

Marine Zone 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.

...SMALL CRAFT SHOULD EXERCISE CAUTION...

  • SynopsisFRESH TO STRONG EAST BREEZES WILL BLOW ACROSS FLORIDA KEYS COASTAL WATERS THIS EVENING...BETWEEN AN EXPANSIVE HIGH PRESSURE SYSTEM CENTERED OVER THE EASTERN COAST OF THE UNITED STATES AND A DISSIPATING WARM FRONT OVER SOUTHERN FLORIDA. THE HIGH PRESSURE SYSTEM WILL MOVE EASTWARD TONIGHT...REACHING THE WESTERN NORTH ATLANTIC ON SUNDAY. FRESH TO STRONG BREEZES WILL PERSIST TONIGHT...WITH SLACKENING BREEZES SUNDAY THROUGH TUESDAY. A COLD FRONT WILL APPROACH THE FLORIDA KEYS TUESDAY NIGHT AND MAY PASS THROUGH THE FLORIDA KEYS AND ADJACENT COASTAL WATERS ON WEDNESDAY.

    THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF NOVEMBER 21...

    67 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY. 33 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS. 17 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST. 8 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY. 6 NM SOUTH OF SOMBRERO KEY LIGHT...OFF MARATHON. LESS THAN 1 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA. 1 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO. 1 NM EAST OF CARYSFORT REEF LIGHT...OFF OCEAN REEF.

    GULF STREAM INFORMATION COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.
  • Tonight East to southeast winds 15 to 20 knots. Bay waters choppy. Scattered showers.
  • Sunday Southeast winds 15 to 20 knots. Bay waters choppy. Isolated showers.
  • Sunday Night Southeast to south winds near 15 knots. Bay waters a moderate chop. Isolated showers.
  • Monday Southeast to south winds near 10 knots. Bay waters a light chop. Isolated showers.
  • Monday Night And Tuesday Southeast winds near 10 knots. Bay waters a light chop. Scattered showers.
  • Tuesday Night East to southeast winds near 10 knots. Bay waters a light chop. Scattered showers and isolated thunderstorms.
  • Wednesday And Wednesday Night North winds 15 to 20 knots. Bay waters choppy. Scattered showers and isolated thunderstorms wednesday. Isolated showers wednesday night.
  • Thursday And Thursday Night North to northeast winds near 20 knots. Bay waters rough. Isolated showers.



Additional Forecasts and Information

Zone Area Forecast for Florida Bay including Barnes Sound Blackwater Sound and Buttonwood Sound
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