National Weather Service United States Department of Commerce

Unseasonably cold temperatures spreading into central U.S.

A strong cold front will usher a much colder air mass into the central and eastern U.S. for the end of the work week. Temperatures will be 10 to 20 degrees below average in some areas. Rain and snow will be possible across the Great Lakes on Friday as the system crosses the area. Heavy snow is possible in the central Appalachians Friday night.
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Last Update: 936 PM EDT THU OCT 30 2014

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Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM

Marine Zone Forecast

SEAS ARE PROVIDED AS A RANGE OF THE AVERAGE HEIGHT OF THE HIGHEST 1/3 OF THE WAVES...ALONG WITH THE OCCASIONAL HEIGHT OF THE AVERAGE HIGHEST 10 PERCENT OF THE WAVES.


  • SynopsisA COLD FRONT WILL CROSS THE WATERS TODAY...INCREASING NORTHWEST WINDS. ANOTEHR STRONGER FRONT WILL MOVE ACROSS SATURDAY...INCREASING WINDS AND SEAS FURTHER. SMALL CRAFT ADVISORIES WILL BE WARRANTED THIS WEEKEND...AND MAY CONTINUE INTO EARLY NEXT WEEK.

    .GULF STREAM HAZARDS...NONE.

    THE APPROXIMATE LOCATION OF THE WEST WALL OF THE GULF STREAM AS OF OCT 29, 2014 AT 1200 UTC...

    6 NAUTICAL MILES SOUTH SOUTHEAST OF FOWEY ROCKS. 8 NAUTICAL MILES EAST SOUTHEAST OF PORT EVERGLADES. 4 NAUTICAL MILES EAST OF LAKE WORTH. 3 NAUTICAL MILES EAST SOUTHEAST OF JUPITER INLET.

    THIS DATA COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.
  • Rest Of Tonight Northeast winds 5 to 10 knots becoming west southwest after midnight. Seas around 2 feet. Dominant period 4 seconds. Intracoastal waters a light chop.
  • Friday West winds 5 to 10 knots. Seas less than 2 feet. Dominant period 4 seconds. Intracoastal waters a light chop. A chance of showers with isolated thunderstorms in the afternoon.
  • Friday Night West northwest winds 15 to 20 knots. Seas less than 2 feet along the coast and 2 to 4 feet with occasional seas to 5 feet in the gulf stream. Dominant period 3 seconds. Intracoastal waters a moderate chop.
  • Saturday West northwest winds 15 to 20 knots. Along the coast...seas 2 to 3 feet. In the gulf stream...seas 2 to 4 feet with occasional seas to 5 feet building to 4 to 6 feet with occasional seas to 8 feet in the afternoon. Dominant period 5 seconds. Intracoastal waters a moderate chop.
  • Saturday Night North northwest winds 15 to 20 knots along the coast to north northwest 20 to 25 knots in the gulf stream. Seas 2 to 4 feet with occasional seas to 5 feet along the coast and 7 to 9 feet with occasional seas to 11 feet in the gulf stream. Intracoastal waters a moderate chop.
  • Sunday And Sunday Night Northeast winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas to 6 feet along the coast and 6 to 8 feet with occasional seas to 10 feet in the gulf stream. Intracoastal waters choppy in exposed areas.
  • Monday And Monday Night East northeast winds 15 to 20 knots along the coast to east northeast 20 to 25 knots in the gulf stream. Seas 4 to 6 feet with occasional seas to 8 feet along the coast and 6 to 8 feet with occasional seas to 10 feet in the gulf stream. Intracoastal waters rough in exposed areas. A slight chance of showers.
  • Tuesday East northeast winds around 20 knots with gusts to around 30 knots. Seas 5 to 7 feet with occasional seas to 9 feet. Intracoastal waters choppy in exposed areas.



Additional Forecasts and Information

Zone Area Forecast for Coastal waters from Deerfield Beach to Ocean Reef FL out 20 NM
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