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.
Hazardous Weather Conditions
5NM N Dry Tortugas Light 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.
- SynopsisFRESH TO OCCASIONALLY STRONG EAST BREEZES WILL BLOW
ACROSS FLORIDA KEYS COASTAL WATERS TONIGHT...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...REACHING THE WESTERN NORTH
ATLANTIC ON SUNDAY. BREEZES WILL SLACKEN 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
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.
- Overnight ESE wind around 20 kt. Scattered showers. Seas around 4 ft.
- Sunday SE wind around 15 kt. Isolated showers. Seas 3 to 4 ft.
- Sunday Night SE wind around 10 kt. Isolated showers. Seas around 2 ft.
- Monday S wind 5 to 10 kt. Isolated showers. Seas around 2 ft.
- Monday Night ESE wind 5 to 10 kt. Scattered showers. Seas around 2 ft.
- Tuesday ENE wind around 10 kt. Scattered showers. Seas around 2 ft.
- Tuesday Night E wind 10 to 15 kt. Scattered showers and thunderstorms. Seas 2 to 3 ft.
- Wednesday NNW wind 20 to 25 kt. Scattered showers and thunderstorms. Seas 4 ft building to 10 ft.
- Wednesday Night N wind 20 to 25 kt, with gusts as high as 30 kt. Isolated showers. Seas 8 to 9 ft.
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