National Weather Service United States Department of Commerce

Heavy Snow For the Southern Rockies with Heavy Rain for Portions of the Southwest

A moist flow off the Pacific will bring heavy rain to southern California and Arizona with heavy snow for the southern Rocky Mountains Monday. More freezing rain is possible from the southern Plains to the central Mississippi Valley. Heavy snow is also expected for portions of New England and upstate New York Monday.
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Hazardous Weather Conditions

4NM N Dry Tortugas Light FL

Marine Point Forecast [NOTICE]

Overnight

Isolated Showers

E 20kt
3ft

Low: 73 °F

Monday

Isolated Showers

ENE 15kt
2-3ft

High: 75 °F

Monday
Night

Mostly Clear

ENE 15kt
2-3ft

Low: 74 °F

Tuesday

Decreasing Clouds

E 15kt
3ft

High: 76 °F

Tuesday
Night

Partly Cloudy

ESE 20kt
3-4ft

Low: 75 °F

Wednesday

Partly Sunny

ESE 15kt
2-3ft

High: 76 °F

Wednesday
Night

Partly Cloudy

ESE 15kt
2ft

Low: 74 °F

Thursday

Mostly Cloudy

SE 10kt
2ft

High: 77 °F

Thursday
Night

Isolated Showers

NE 15kt
1-3ft

Low: 72 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:15 am EST Mar 2, 2015
Forecast Valid: 3am EST Mar 2, 2015-6pm EDT Mar 8, 2015

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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 LARGE AREA OF HIGH PRESSURE WILL CONTINUE TO MOVE OUT OVER THE WESTERN NORTH ATLANTIC TONIGHT. THE NEXT AREA OF HIGH PRESSURE WILL MOVE EASTWARD AND ACROSS THE MID-ATLANTIC COAST MONDAY THROUGH FRIDAY.

    THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF FEBRUARY 27...

    50 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY. 26 NM SOUTH OF COSGROVE SHOAL LIGHT...OFF THE MARQUESAS KEYS. 22 NM SOUTH OF SAND KEY LIGHT...OFF KEY WEST. 4 NM SOUTH OF LOOE KEY...OFF BIG PINE KEY. 1 NM SOUTH OF SOMBRERO KEY LIGHT...OFF MARATHON. 5 NM SOUTHEAST OF ALLIGATOR REEF LIGHT...OFF ISLAMORADA. 6 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.
  • Overnight E wind 15 to 20 kt. Isolated showers. Seas around 3 ft.
  • Monday ENE wind around 15 kt. Isolated showers before 7am. Seas 2 to 3 ft.
  • Monday Night ENE wind 10 to 15 kt. Mostly clear. Seas 2 to 3 ft.
  • Tuesday E wind around 15 kt. Mostly cloudy, then gradually becoming sunny. Seas around 3 ft.
  • Tuesday Night ESE wind 15 to 20 kt. Partly cloudy. Seas 3 to 4 ft.
  • Wednesday ESE wind 10 to 15 kt. Partly sunny. Seas 2 to 3 ft.
  • Wednesday Night ESE wind around 15 kt. Partly cloudy. Seas around 2 ft.
  • Thursday SE wind 5 to 10 kt. Mostly cloudy. Seas around 2 ft.
  • Thursday Night NE wind 5 to 15 kt. Isolated showers. Seas 1 to 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.