Coastal low to bring gusty winds and periods of heavy rain to New England while moderate to heavy rain is expected to linger in the Pacific Northwest and northern California
A coastal low will slowly intensify before moving out of the New England area. Increasingly heavy rainfall will impact the region through Friday. In addition, winds will increase and seas will become rough as the storm gradually intensifies just off the coast. Out west, a cold front approaching the Pacific Northwest will bring moderate to heavy rain to Washington, Oregon and northern California.
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.
- SynopsisTHE COMBINATION OF A CONTINENTAL HIGH PRESSURE SYSTEM
CENTERED OVER THE EASTERN UNITED STATES AND A TROPICAL LOW PRESSURE
AREA CENTERED NEAR THE YUCATAN WILL MAINTAIN A RICH VEIN OF TROPICAL
MOISTURE INTO THE FLORIDA KEYS TODAY THROUGH FRIDAY. A NEARLY
STATIONARY FRONTAL ZONE JUST NORTH OF THE FLORIDA KEYS WILL PROVIDE
THE FOCUS FOR SEVERAL EPISODES OF HEAVY RAIN OVER SOUTHERN FLORIDA
DURING THE NEXT FEW DAYS. THE FRONTAL ZONE WILL MERGE WITH THE
TROPICAL LOW PRESSURE AREA IN THE VICINITY OF THE FLORIDA KEYS FRIDAY
THROUGH SATURDAY...RESULTING IN FRESHENING NORTHEAST TO EAST BREEZES
ACROSS ALL FLORIDA KEYS COASTAL WATERS.
THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF OCTOBER
37 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY.
25 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS.
25 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST.
30 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY.
28 NM SOUTH OF SOMBRERO KEY LIGHT...OFF MARATHON.
16 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA.
8 NM SOUTHEAST OF MOLASSES REEF LIGHT...OFF KEY LARGO.
5 NM EAST OF CARYSFORT REEF LIGHT...OFF OCEAN REEF.
GULF STREAM INFORMATION COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.
- Today E wind 10 to 15 kt. Periods of rain and possibly a thunderstorm. Some of the storms could produce heavy rain. Seas around 2 ft.
- Tonight E wind around 15 kt. Periods of rain and possibly a thunderstorm. Some of the storms could produce heavy rain. Seas around 3 ft.
- Thursday E wind around 20 kt. Periods of rain and possibly a thunderstorm. Some of the storms could produce heavy rain. Seas around 4 ft.
- Thursday Night ENE wind around 20 kt. Rain likely and possibly a thunderstorm. Seas around 4 ft.
- Friday ENE wind around 15 kt. Rain likely and possibly a thunderstorm. Seas 3 to 4 ft.
- Friday Night NE wind around 20 kt. Scattered showers and thunderstorms. Seas 4 to 5 ft.
- Saturday NNE wind around 20 kt. Isolated showers. Seas around 6 ft.
- Saturday Night NE wind around 20 kt. Isolated showers. Seas 3 to 4 ft.
- Sunday NE wind around 15 kt. Isolated showers. Seas around 3 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