National Weather Service Marine Forecast FZUS53 KMKX

FZUS53 KMKX 120911
NSHMKX

Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
311 AM CST Mon Jan 12 2026

For waters within five nautical miles of shore on Lake Michigan

LMZ643-122200
Sheboygan to Port Washington WI
311 AM CST Mon Jan 12 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING

EARLY THIS MORNING
Southwest wind 15 to 20 knots. Mostly clear. Waves 2 to 4 feet.

TODAY
West wind 15 to 20 knots easing to 10 to 15 knots late in the morning, then rising to 15 to 20 knots early in the afternoon easing to 10 to 15 knots late in the afternoon. Sunny. Waves 1 to 2 feet.

TONIGHT
West wind 10 to 15 knots with gusts to around 20 knots backing southwest late in the evening, then becoming southwest 10 to 15 knots after midnight becoming 10 to 20 knots early in the morning. Chance of rain after midnight. Waves 1 to 2 feet.

TUESDAY
Southwest wind 15 to 25 knots veering west late in the afternoon. Chance of rain in the morning, then slight chance of rain in the afternoon. Waves 3 to 4 feet.

TUESDAY NIGHT
West wind 10 to 20 knots becoming 15 to 20 knots late in the evening, then veering northwest after midnight becoming 15 to 25 knots early in the morning. Chance of rain and snow after midnight. Waves 1 to 2 feet building to 3 to 4 feet early in the morning.

Wave heights are for ice free areas.

---

LMZ644-122200
Port Washington to North Point Light WI
311 AM CST Mon Jan 12 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING

EARLY THIS MORNING
Southwest wind 15 to 20 knots. Mostly clear. Waves 2 to 4 feet.

TODAY
West wind 15 to 20 knots easing to 10 to 15 knots in the late morning and afternoon. Sunny. Waves 1 to 2 feet.

TONIGHT
Southwest wind 10 to 15 knots with gusts to around 20 knots becoming southwest 10 to 15 knots after midnight, then becoming 10 to 20 knots early in the morning. Chance of rain after midnight. Waves 1 to 2 feet.

TUESDAY
Southwest wind 15 to 25 knots veering west late in the afternoon. Chance of rain in the morning, then slight chance of rain in the afternoon. Waves 2 to 4 feet.

TUESDAY NIGHT
West wind 10 to 20 knots becoming 15 to 20 knots late in the evening, then veering northwest after midnight becoming 15 to 25 knots early in the morning. Slight chance of rain and snow after midnight. Waves 1 to 2 feet building to 2 to 4 feet early in the morning.

Wave heights are for ice free areas.

---

LMZ645-122200
North Point Light to Wind Point WI
311 AM CST Mon Jan 12 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING

EARLY THIS MORNING
Southwest wind 15 to 25 knots. Mostly clear. Waves 2 to 4 feet.

TODAY
West wind 15 to 20 knots becoming southwest 10 to 15 knots late in the afternoon. Sunny. Waves 1 to 2 feet.

TONIGHT
Southwest wind 10 to 15 knots with gusts to around 20 knots becoming southwest 10 to 15 knots after midnight, then becoming 10 to 20 knots early in the morning. Chance of rain after midnight. Waves 1 to 2 feet.

TUESDAY
Southwest wind 15 to 25 knots veering west early in the afternoon, then easing to 10 to 20 knots late in the afternoon. Chance of rain in the morning, then slight chance of rain in the afternoon. Waves 3 to 4 feet.

TUESDAY NIGHT
West wind 15 to 20 knots veering northwest 15 to 25 knots early in the morning. Slight chance of rain and snow after midnight. Waves 1 to 2 feet building to 3 to 4 feet early in the morning.

Wave heights are for ice free areas.

---

LMZ646-122200
Wind Point WI to Winthrop Harbor IL
311 AM CST Mon Jan 12 2026

SMALL CRAFT ADVISORY IN EFFECT UNTIL 6 AM CST EARLY THIS MORNING

EARLY THIS MORNING
Southwest wind 15 to 25 knots. Mostly clear. Waves 2 to 4 feet.

TODAY
West wind 15 to 20 knots easing to 10 to 15 knots early in the afternoon, then backing southwest late in the afternoon. Gusts up to 25 knots. Sunny. Waves 2 to 4 feet subsiding to 1 to 2 feet in the late morning and afternoon.

TONIGHT
Southwest wind 10 to 15 knots with gusts to around 20 knots becoming southwest 10 to 15 knots after midnight, then becoming 10 to 20 knots early in the morning. Slight chance of rain after midnight. Waves 1 to 2 feet.

TUESDAY
Southwest wind 15 to 25 knots veering west 15 to 20 knots in the afternoon. Slight chance of rain. Waves 3 to 4 feet subsiding to 1 to 2 feet late in the afternoon.

TUESDAY NIGHT
West wind 15 to 20 knots veering northwest early in the morning. Gusts up to 25 knots. Slight chance of rain and snow after midnight. Waves 1 to 2 feet building to 2 to 4 feet early in the morning.

Wave heights are for ice free areas.

---

See Lake Michigan Open Waters Forecast for Wednesday through Friday.