Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Last Update: 426 AM EST Sat Jan 17 2026

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Key West, FL Local Forecast Office

5NM E Vaca Cut FL

Marine Zone Forecast


Today
Northeast to east winds 10 to 15 knots early, decreasing to 5 to 10 knots. Seas 1 to 2 feet, except 2 to 3 feet west of cosgrove shoal light. Nearshore waters a light to moderate chop, becoming smooth to a light chop. Isolated showers.
Tonight
Northeast winds 5 to 10 knots. Seas 1 to 2 feet. Nearshore waters smooth to a light chop. Isolated showers.
Sunday
North to northeast winds 5 to 10 knots, becoming northwest to north 20 to 25 knots in the afternoon. Seas around 1 foot, building to 2 to 3 feet. West of cosgrove shoal light, seas 1 to 2 feet, building to 2 to 4 feet, occasionally to 5 feet. nearshore waters smooth to a light chop, becoming very rough. scattered showers.
Sunday Night
North winds 20 to 25 knots. Seas 2 to 3 feet. West of cosgrove shoal light, seas 4 to 5 feet, occasionally to 6 feet, building to 5 to 7 feet, occasionally to 9 feet. Nearshore waters very rough. Isolated showers.
Monday
North winds 20 to 25 knots, becoming north to northeast 15 to 20 knots in the afternoon. Seas 2 to 3 feet, except 5 to 6 feet, occasionally to 8 feet west of cosgrove shoal light. nearshore waters very rough, becoming choppy.
Monday Night
North to northeast winds 15 to 20 knots, increasing to near 20 knots. Seas 2 to 3 feet, except 4 to 5 feet, occasionally to 6 feet west of cosgrove shoal light. nearshore waters choppy, becoming rough.
Tuesday
North to northeast winds 20 to 25 knots. Seas 2 to 3 feet, except 4 to 6 feet, occasionally to 8 feet west of cosgrove shoal light. Nearshore waters very rough.
Tuesday Night
Northeast winds 20 to 25 knots. Seas 2 to 4 feet, occasionally to 5 feet, except 5 to 6 feet, occasionally to 8 feet west of cosgrove shoal light. Nearshore waters very rough.
Wednesday
Northeast to east winds 20 to 25 knots. Seas 3 to 5 feet, occasionally to 6 feet, except 4 to 6 feet, occasionally to 8 feet west of cosgrove shoal light. Nearshore waters very rough. Isolated showers.
Wednesday Night
Northeast to east winds near 20 knots, decreasing to 15 to 20 knots. Seas 3 to 5 feet, occasionally to 6 feet. Nearshore waters rough, becoming choppy. Isolated showers.



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426 AM EST Sat Jan 17 2026
 
 

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