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.
Hazardous Weather Conditions
11NM W Florida Bay FL
Marine Point Forecast [NOTICE]
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.
- SynopsisA WEAK PRESSURE PATTERN WILL PREVAIL TONIGHT. A COLD
FRONT WILL PROGRESS SOUTHWARD ACROSS THE SOUTHEASTERN GULF OF MEXICO
FRIDAY. THIS COLD FRONT WILL LIKELY MOVE THROUGH THE FLORIDA KEYS
FRIDAY EVENING...FOLLOWED BY THE PASSAGE OF A SECONDARY COLD FRONT
SATURDAY AFTERNOON. A STRONG HIGH PRESSURE SYSTEM WILL BUILD ACROSS
THE FLORIDA PENINSULA LATE THIS WEEKEND INTO EARLY NEXT WEEK.
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM CURRENT...AS OF
36 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.
12 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.
7 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.
LESS THAN 1 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.
LESS THAN 1 NM SOUTH OF SOMBRERO KEY LIGHT...OFF MARATHON.
1 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.
LESS THAN 1 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.
- Overnight WNW wind 5 to 10 kt. Isolated showers. Seas 1 ft or less.
- Friday WNW wind 5 to 15 kt. Isolated showers. Seas 1 ft or less.
- Friday Night NW wind around 15 kt. Mostly clear. Seas 1 ft or less.
- Saturday NNW wind 15 to 20 kt. Mostly sunny. Seas 1 ft or less.
- Saturday Night N wind around 20 kt. Clear. Seas 1 ft or less.
- Sunday NNE wind 15 to 20 kt. Sunny. Seas 1 ft or less.
- Sunday Night NE wind around 20 kt. Partly cloudy. Seas 1 ft or less.
- Monday ENE wind around 20 kt. Isolated showers. Seas 1 ft or less.
- Monday Night ENE wind around 20 kt. Isolated showers. Seas 1 ft or less.
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.
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.
HOURLY WEATHER GRAPH
NATIONAL DIGITAL FORECAST DATABASE