National Weather Service United States Department of Commerce

Heavy lake-effect snow continues across lower Great Lakes

Another round of heavy lake-effect snow is forecast for the Great Lakes through mid-day Friday. An additional 30 inches or more could fall in some locations, on top of the impressive amounts that have fallen already. This will result in very difficult or nearly impossible travel at times in the heaviest snow bands. The snow should taper off during the morning on Friday.
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6NM W Florida Bay FL

Marine Point Forecast [NOTICE]

This
Afternoon

Rain

NE 25kt
< 1ft

High: 74 °F

Small Craft Advisory
Small Craft Advisory

Tonight

Scattered Showers

ENE 25kt
< 1ft

Low: 72 °F

Small Craft Advisory
Small Craft Advisory

Saturday

Scattered Showers

E 20kt
< 1ft

High: 81 °F

Saturday
Night

Scattered Showers

ESE 15kt
< 1ft

Low: 76 °F

Sunday

Isolated Showers

SE 15kt
< 1ft

High: 81 °F

Sunday
Night

Isolated Showers

SSE 10kt
< 1ft

Low: 76 °F

Monday

Isolated Showers

S 10kt
< 1ft

High: 80 °F

Monday
Night

Isolated Showers

ESE 10kt
< 1ft

Low: 77 °F

Tuesday

Isolated Showers

SE 10kt
< 1ft

High: 81 °F

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:40 am EST Nov 21, 2014
Forecast Valid: 12pm EST Nov 21, 2014-6pm EST Nov 27, 2014

View Nearby Observations

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.

  • SynopsisSTRONG NORTHEAST BREEZES WILL BLOW TODAY AND TONIGHT... BETWEEN AN EXPANSIVE HIGH PRESSURE SYSTEM CENTERED OVER THE EASTERN UNITED STATES AND A SLOWLY-MOVING WARM FRONT OVER THE STRAITS OF FLORIDA. THE HIGH PRESSURE SYSTEM WILL MOVE EASTWARD TODAY THROUGH FRIDAY...REACHING THE WESTERN NORTH ATLANTIC SATURDAY AND SUNDAY. FRESH TO STRONG BREEZES WILL PERSIST THROUGH SATURDAY NIGHT...WITH SLACKENING BREEZES SUNDAY THROUGH TUESDAY.

    THE APPROXIMATE SHOREWARD EDGE OF THE GULF STREAM AS OF NOVEMBER 19...

    67 NM SOUTH OF DRY TORTUGAS LIGHT...ON LOGGERHEAD KEY. 34 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.
  • This Afternoon NE wind 20 to 25 kt. Periods of rain. Seas 1 ft or less.
  • Tonight ENE wind 20 to 25 kt. Scattered showers. Seas 1 ft or less.
  • Saturday E wind around 20 kt. Scattered showers and thunderstorms. Seas 1 ft or less.
  • Saturday Night ESE wind around 15 kt. Scattered showers and thunderstorms. Seas 1 ft or less.
  • Sunday SE wind 10 to 15 kt. Isolated showers. Seas 1 ft or less.
  • Sunday Night SSE wind around 10 kt. Isolated showers. Seas 1 ft or less.
  • Monday S wind 5 to 10 kt. Isolated showers. Seas 1 ft or less.
  • Monday Night ESE wind 5 to 10 kt. Isolated showers. Seas 1 ft or less.
  • Tuesday SE wind around 10 kt. Isolated showers. Seas 1 ft or less.
*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.