Arctic Air Plunges into the Great Lakes, Northeast and Mid-Atlantic

Arctic air dropping through the northern and eastern U.S. and a storm off the east coast will bring periods of snow, very cold wind chills and hazardous traveling conditions from the Upper Great Lakes to the Northeast. Meanwhile in southern California, Santa Ana winds will decrease but hot, dry air will remain over the area with elevated fire weather conditions.
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Coastal Waters Forecast for Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM (GMZ055) (Text-Only)
NWS Forecast for: Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM (GMZ055)
Issued by: National Weather Service Key West, FL
Last Update: 1017 PM EST Tue Dec 12 2017
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Overnight: Northwest winds near 15 knots early, increasing to 20 knots. Seas 3 to 5 feet, building to 4 to 7 feet. Isolated showers late this evening.

Wednesday: Northwest to north 15 to 20 knots early, becoming north to northeast and decreasing to 10 to 15 knots in the afternoon. Seas 4 to 6 feet early, subsiding to 3 to 5 feet.

Wednesday Night: North to northeast winds decreasing to 5 to 10 knots. Seas 2 to 4 feet.

Thursday: Northeast winds 5 to 10 knots. Seas 2 to 3 feet.

Thursday Night: Northeast to east winds 5 to 10 knots. Seas 1 to 3 feet.

Friday: Northeast winds 5 to 10 knots. Seas 1 to 2 feet.

Friday Night: Northeast winds 10 to 15 knots. Seas 1 to 3 feet. Isolated showers.

Saturday: East winds increasing to 15 to 20 knots. Seas 3 to 5 feet. Isolated showers.

Saturday Night: East winds near 20 knots. Seas 4 to 6 feet. Isolated showers.

Sunday And Sunday Night: East to southeast winds 15 to 20 knots. Seas 4 to 6 feet. Isolated showers.



Zone Forecast: Straits of Florida from Halfmoon Shoal to 20 NM west of Dry Tortugas out 20 NM (GMZ055)

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