National Weather Service United States Department of Commerce

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.
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Hazardous Weather Conditions

5NM N Dry Tortugas Light FL

Marine Point Forecast [NOTICE]

Today

Heavy Rain

E 15kt
2ft

High: 82 °F

Tonight

Heavy Rain

E 15kt
3ft

Low: 79 °F

Thursday

Heavy Rain

E 20kt
4ft

High: 81 °F

Thursday
Night

Rain Likely

ENE 20kt
4ft

Low: 79 °F

Friday

Rain Likely

ENE 15kt
3-4ft

High: 83 °F

Friday
Night

Scattered Showers

NE 20kt
4-5ft

Low: 78 °F

Saturday

Isolated Showers

NNE 20kt
6ft

High: 80 °F

Saturday
Night

Isolated Showers

NE 20kt
3-4ft

Low: 78 °F

Sunday

Isolated Showers

NE 15kt
3ft

High: 80 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:39 am EDT Oct 22, 2014
Forecast Valid: 6am EDT Oct 22, 2014-6pm EDT Oct 28, 2014

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Detailed 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.

  • 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 20...

    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.
*Notices:
  1. 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.
  2. 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.