Heavy snow and hazardous travel for portions of the Great Lakes, Northeast, and New England

Heavy snow, bitterly cold temperatures, and treacherous travel will be likely from the Great Lakes to the Northeast, and into New England over the next couple of days. Heavy Lake Effect snow of one to two feet will impact areas downwind of Lake Eerie and Ontario. Widespread snowfall of 6 to 12 inches will also impact much of northern New England.
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Last Update: 1009 AM EST Tue Dec 12 2017

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Key West, FL Local Forecast Office

5NM E Vaca Cut FL

Marine Zone Forecast


Synopsis: A weak cold front will approach South Florida today and clear our region tonight. An area of high pressure will slide eastward across the Gulf of Mexico and Florida peninsula Wednesday night through Thursday night.

The Approximate Shoreward Edge of the Gulf Stream current, as of December 9th, 2017,

16 NM South of Dry Tortugas Light, on Loggerhead Key. 35 NM South of Cosgrove Shoal Light, off the Marquesas Keys. 41 NM South of Sand Key Light, off Key West. 32 NM South of Looe Key, off Big Pine Key. 15 NM South of Sombrero Key Light, off Marathon. 9 NM Southeast of Alligator Reef Light, off Islamorada. 2 NM Southeast of Molasses Reef Light, off Key Largo. 2 NM East of Carysfort Reef Light, off Ocean Reef.

Gulf Stream Information Courtesy of the Naval Oceanographic Office.

Today
North winds near 10 knots, becoming northwest and increasing to near 15 knots. Seas 1 to 3 feet. Nearshore waters a light chop becoming a moderate chop.
Tonight
Northwest to north winds 15 to 20 knots. Seas 2 to 4 feet. Nearshore waters choppy.
Wednesday
North winds 15 to 20 knots, decreasing to 10 to 15 knots in the afternoon. Seas 2 to 4 feet, subsiding to around 2 feet. Nearshore waters choppy, becoming a light to moderate chop.
Wednesday Night
North winds 10 to 15 knots. Seas around 2 feet. Nearshore waters a light to moderate chop.
Thursday
North winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop.
Thursday Night
Northwest to north winds near 10 knots. Seas 1 to 2 feet. Nearshore waters a light chop.
Friday
Northwest winds 10 to 15 knots, increasing to near 15 knots in the afternoon. Seas 1 to 2 feet, building to 2 to 3 feet. Nearshore waters a light to moderate chop. Isolated showers.
Friday Night
West to northwest winds 15 to 20 knots, becoming north and increasing to near 20 knots by midnight. Seas 2 to 4 feet, building to 3 to 5 feet. Nearshore waters choppy, becoming rough. Isolated showers.
Saturday
North to northeast winds 15 to 20 knots. Seas 3 to 4 feet. Nearshore waters choppy.
Saturday Night
Northeast winds 15 to 20 knots. Seas 2 to 4 feet. Nearshore waters choppy.
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Last Update: 1009 AM EST Tue Dec 12 2017
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