Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Last Update: 1022 PM EST Mon Jan 19 2026

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Key West, FL Local Forecast Office

33NM SSE Molasses Reef Light FL

Marine Zone Forecast


Overnight
North to northeast winds near 20 knots, increasing to 20 to 25 knots. Seas 5 to 7 feet, occasionally to 9 feet, building to 6 to 8 feet, occasionally to 10 feet. Wave detail: northeast 7 feet at 7 seconds and west to northwest 3 feet at 8 seconds. Isolated showers.
Tuesday
North to northeast winds 20 to 25 knots, becoming northeast. Seas 6 to 9 feet, occasionally to 11 feet. Wave detail: northeast 8 feet at 7 seconds and west to northwest 1 foot at 7 seconds. Isolated showers.
Tuesday Night
Northeast winds near 25 knots. Seas 7 to 9 feet, occasionally to 11 feet. Wave detail: northeast 9 feet at 7 seconds. Isolated showers.
Wednesday
Northeast to east winds near 25 knots, decreasing to 20 to 25 knots. Seas 7 to 9 feet, occasionally to 11 feet. scattered showers.
Wednesday Night
Northeast to east winds near 20 knots, decreasing to 15 to 20 knots. Seas 6 to 8 feet, occasionally to 10 feet, subsiding to 5 to 7 feet, occasionally to 9 feet. scattered showers.
Thursday
Northeast to east winds near 15 knots, decreasing to 10 to 15 knots. Seas 4 to 6 feet, occasionally to 8 feet, subsiding to 2 to 4 feet, occasionally to 5 feet. Scattered showers.
Thursday Night
Northeast winds near 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Scattered showers.
Friday And Friday Night
Northeast to east winds 10 to 15 knots. Seas 2 to 4 feet, occasionally to 5 feet. Isolated showers.
Saturday And Saturday Night
Northeast to east winds 10 to 15 knots. Seas 2 to 3 feet. Isolated showers.



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1022 PM EST Mon Jan 19 2026
 
 

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