Lake Effect Snow through Friday; Heavy Rain, Thunderstorms and Mountain Snow in California

Periods of moderate to heavy lake effect snow will continue through Friday downwind of Lake Erie and Ontario. Several additional inches of accumulating snow are expected. A Pacific storm will bring heavy rain and mountain snow across California, the Southwest and Intermountain West today. Isolated severe thunderstorms and scattered flash flooding is possible across parts of southern California. Read More >

Last Update: 429 PM EST Thu Jan 1 2026

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Key West, FL Local Forecast Office

16NM NNW Vaca Cut FL

Marine Zone Forecast

Tonight

North winds 5 to 10 knots, becoming north to northeast. Seas 1 to 2 feet, except around 2 feet west of the marquesas keys. Nearshore waters smooth to a light chop.

Friday

Northeast winds near 5 knots, becoming variable in the afternoon. Seas 1 foot or less. Nearshore waters smooth.

Friday Night

Variable winds near 5 knots. Seas 1 foot or less. Nearshore waters smooth.

Saturday

Variable winds near 5 knots, becoming southwest in the afternoon. Seas 1 foot or less. Nearshore waters smooth.

Saturday Night

Southwest to west winds 5 to 10 knots, increasing to near 10 knots. Seas 1 foot or less, except building to 1 to 2 feet west of the marquesas keys. Nearshore waters smooth to a light chop, becoming a light chop. Isolated showers.

Sunday

Southwest to west winds near 10 knots, becoming west to northwest near 15 knots. Seas 1 to 2 feet, building to 2 to 3 feet. Nearshore waters a light chop, becoming to a moderate chop. isolated showers.

Sunday Night

Northwest to north winds near 15 knots, becoming north to northeast. Seas 2 to 3 feet, except 3 to 4 feet, occasionally to 5 feet west of the marquesas keys. Nearshore waters a moderate chop.

Monday

North to northeast winds near 15 knots, becoming northeast 5 to 10 knots. Seas 2 to 3 feet, subsiding to 1 to 2 feet. West of the marquesas keys, seas 2 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet. Nearshore waters a moderate chop, becoming smooth to a light chop.

Monday Night

North to northeast winds 5 to 10 knots, becoming northeast 10 to 15 knots. Seas 1 to 2 feet, except around 2 feet west of the marquesas keys. Nearshore waters smooth to a light chop, becoming a light to moderate chop.

Tuesday

Northeast to east winds 10 to 15 knots. Seas 1 to 2 feet. Nearshore waters a light to moderate chop.

Tuesday Night

East winds 10 to 15 knots. Seas around 1 foot. Nearshore waters a light to moderate chop.