National Weather Service United States Department of Commerce

Unsettled weather in store for eastern U.S. into weekend

A complex weather system moving across the eastern U.S. will bring a variety of hazardous weather to the region into the weekend. Much colder weather is expected by Saturday, along with numerous showers and accumulating snow in the higher elevations of the Appalachians. Rain and snow will move into northern New England on Sunday.
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5NM N Dry Tortugas Light FL

Marine Point Forecast [NOTICE]

Tonight

Mostly Clear

NNW 15kt
3-4ft

Low: 76 °F

Small Craft Advisory
Small Craft Advisory

Saturday

Mostly Sunny

NNW 25kt
5-7ft

High: 78 °FFalling Temperatures

Saturday
Night

Mostly Clear

NNW 25kt
7-8ft

Low: 67 °F

Sunday

Sunny

NNE 20kt
6-7ft

High: 73 °F

Sunday
Night

Partly Cloudy

NE 20kt
5ft

Low: 71 °F

Monday

Isolated Showers

ENE 25kt
6ft

High: 79 °F

Monday
Night

Isolated Showers

ENE 25kt
6-7ft

Low: 77 °F

Tuesday

Isolated Showers

ENE 25kt
5-6ft

High: 81 °F

Tuesday
Night

Isolated Showers

E 25kt
5ft

Low: 79 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:15 pm EDT Oct 31, 2014
Forecast Valid: 10pm EDT Oct 31, 2014-6pm EST Nov 7, 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.

  • SynopsisA COLD FRONT WILL PROGRESS SOUTHWARD ACROSS THE KEYS THIS 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 OCTOBER 31ST...

    53 NM S OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY. 19 NM S OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS. 8 NM S OF SAND KEY LIGHT...OFF KEY WEST. 4 NM S OF LOOE KEY...OFF BIG PINE KEY. 2 NM S OF SOMBRERO KEY LIGHT...OFF MARATHON. 0 NM SE OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA. 0 NM SE OF MOLASSES REEF LIGHT...OFF KEY LARGO. 0 NM E OF CARYSFORT REEF LIGHT...OFF OCEAN REEF.

    GULF STREAM INFORMATION COURTESY OF THE NAVAL OCEANOGRAPHIC OFFICE.
  • Tonight NNW wind around 15 kt. Mostly clear. Seas 3 to 4 ft.
  • Saturday NNW wind 20 to 25 kt. Mostly sunny. Seas 5 to 7 ft.
  • Saturday Night NNW wind 20 to 25 kt. Mostly clear. Seas 7 to 8 ft.
  • Sunday NNE wind around 20 kt. Sunny. Seas 6 to 7 ft.
  • Sunday Night NE wind 15 to 20 kt. Partly cloudy. Seas around 5 ft.
  • Monday ENE wind 20 to 25 kt. Isolated showers. Seas around 6 ft.
  • Monday Night ENE wind around 25 kt. Isolated showers. Seas 6 to 7 ft.
  • Tuesday ENE wind around 25 kt. Isolated showers. Seas 5 to 6 ft.
  • Tuesday Night E wind around 25 kt. Isolated showers. Seas around 5 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.