National Weather Service Marine Forecast FZUS53 KMKX

FZUS53 KMKX 241310
NSHMKX

Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
710 AM CST Wed Dec 24 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-241700
Sheboygan to Port Washington WI
710 AM CST Wed Dec 24 2025

SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY AFTERNOON

TODAY
East wind 5 to 15 knots veering southeast 10 to 15 knots late in the morning, then veering south in the afternoon. Mostly cloudy. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon.

TONIGHT
South wind 5 to 15 knots veering west 5 to 10 knots late in the evening, then veering north 5 to 15 knots after midnight rising to 15 to 20 knots early in the morning. Areas of drizzle through around midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight, then building to 2 to 4 feet early in the morning.

THURSDAY
Northeast wind 15 to 20 knots becoming 10 to 20 knots late in the morning, then becoming 15 to 20 knots early in the afternoon veering east late in the afternoon. Mostly cloudy. Waves 3 to 5 feet building to 4 to 6 feet in the late morning and afternoon.

THURSDAY NIGHT
East wind 15 to 25 knots becoming southeast up to 30 knots in the late evening and overnight. Rain likely after midnight. Waves 4 to 6 feet building to 7 to 9 feet.

Wave heights are for ice free areas.

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LMZ644-241700
Port Washington to North Point Light WI
710 AM CST Wed Dec 24 2025

SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY AFTERNOON

TODAY
East wind 5 to 15 knots veering southeast 10 to 15 knots late in the morning, then veering south in the afternoon. Patchy drizzle late in the afternoon. Waves 1 to 2 feet building to 2 to 4 feet in the afternoon.

TONIGHT
South wind 5 to 15 knots veering west 5 to 10 knots late in the evening, then veering north 5 to 15 knots after midnight rising to 10 to 20 knots early in the morning. Areas of drizzle through around midnight. Waves 2 to 4 feet subsiding to 1 to 3 feet after midnight, then building to 2 to 4 feet early in the morning.

THURSDAY
Northeast wind 15 to 20 knots becoming 10 to 20 knots late in the morning, then becoming 15 to 20 knots early in the afternoon veering east late in the afternoon. Mostly cloudy. Waves 3 to 4 feet building to 4 to 6 feet in the late morning and afternoon.

THURSDAY NIGHT
East wind 15 to 25 knots becoming southeast up to 30 knots in the late evening and early morning, then easing to 15 to 25 knots early in the morning. Rain likely after midnight. Waves 4 to 6 feet building to 6 to 8 feet in the late evening and overnight.

Wave heights are for ice free areas.

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LMZ645-241700
North Point Light to Wind Point WI
710 AM CST Wed Dec 24 2025

SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY AFTERNOON

TODAY
East wind 5 to 15 knots veering southeast 10 to 15 knots in the late morning and afternoon. Patchy drizzle late in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon.

TONIGHT
South wind 5 to 15 knots veering southwest 5 to 10 knots late in the evening, then veering northwest 5 to 15 knots after midnight becoming north 10 to 20 knots early in the morning. Areas of drizzle through around midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and early morning, then building to 2 to 4 feet early in the morning.

THURSDAY
Northeast wind 15 to 20 knots becoming 10 to 20 knots late in the morning, then becoming 15 to 20 knots early in the afternoon veering east late in the afternoon. Mostly cloudy. Waves 3 to 5 feet.

THURSDAY NIGHT
East wind 15 to 25 knots veering southeast after midnight. Rain likely after midnight. Waves 5 to 7 feet building to 6 to 8 feet after midnight.

Wave heights are for ice free areas.

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LMZ646-241700
Wind Point WI to Winthrop Harbor IL
710 AM CST Wed Dec 24 2025

SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY MORNING THROUGH FRIDAY AFTERNOON

TODAY
East wind 10 to 15 knots veering southeast in the afternoon. Patchy drizzle late in the afternoon. Waves 1 to 3 feet building to 2 to 4 feet in the late morning and afternoon.

TONIGHT
Southeast wind 5 to 10 knots veering southwest late in the evening, then veering northwest after midnight becoming north 10 to 20 knots early in the morning. Areas of drizzle through around midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening and early morning, then building to 2 to 4 feet early in the morning.

THURSDAY
North wind 15 to 20 knots veering east late in the afternoon. Mostly cloudy. Waves 3 to 5 feet building to 4 to 6 feet in the late morning and afternoon.

THURSDAY NIGHT
East wind 15 to 25 knots veering southeast after midnight. Rain likely after midnight. Waves 4 to 6 feet building to 5 to 7 feet in the late evening and overnight.

Wave heights are for ice free areas.

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See Lake Michigan Open Waters Forecast for Friday through Sunday.