Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Last Update: 1032 PM EST Sat Dec 27 2025

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Key West, FL Local Forecast Office

3NM N American Shoal Light FL

Marine Zone Forecast


Overnight
North to northeast winds 5 to 10 knots, increasing to near 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop.
Sunday
Northeast to east winds near 10 knots, decreasing to 5 to 10 knots. Seas around 1 foot. Nearshore waters a light chop, becoming smooth to a light chop.
Sunday Night
Northeast to east winds 5 to 10 knots. Seas around 1 foot. Nearshore waters smooth to a light chop.
Monday
Northeast winds near 5 knots, becoming variable. Seas 1 foot or less. Nearshore waters smooth.
Monday Night
Northwest to north winds near 5 knots, increasing to 5 to 10 knots. Seas 1 foot or less. Nearshore waters smooth, becoming smooth to a light chop.
Tuesday
Northwest winds near 10 knots, becoming northwest to north and increasing to near 15 knots. Seas 1 to 2 feet. West of cosgrove shoal light, seas 2 to 3 feet, building to 3 to 4 feet, occasionally to 5 feet. Nearshore waters a light chop, becoming a moderate chop. Isolated showers.
Tuesday Night
North winds 15 to 20 knots. Seas 1 to 3 feet, except 4 to 5 feet, occasionally to 6 feet west of cosgrove shoal light. Nearshore waters choppy. Isolated showers.
Wednesday
North winds 15 to 20 knots, decreasing to 10 to 15 knots. Seas 2 to 3 feet, except 3 to 5 feet, occasionally to 6 feet west of cosgrove shoal light. Nearshore waters choppy, becoming a light to moderate chop.
Wednesday Night
North winds 10 to 15 knots. Seas 1 to 2 feet, except 3 to 4 feet, occasionally to 5 feet west of cosgrove shoal light. Nearshore waters a light to moderate chop.
Thursday And Thursday Night
North winds 10 to 15 knots. Seas 1 to 2 feet, except 2 to 3 feet west of cosgrove shoal light. nearshore waters a light to moderate chop.



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1032 PM EST Sat Dec 27 2025
 
 

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