Nearshore Marine Forecast
Issued by NWS Milwaukee/Sullivan, WI

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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
910 PM CST Thu Dec 4 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-051100-
Sheboygan to Port Washington WI-
910 PM CST Thu Dec 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING...

.REST OF TONIGHT...Southwest wind 15 to 25 knots rising to up to
30 knots after midnight, then becoming southwest up to 30 knots
early in the morning. Freezing spray after midnight. Waves 3 to
5 feet building to 4 to 6 feet after midnight.
.FRIDAY...Southwest wind 15 to 25 knots becoming 15 to 20 knots
in the late morning and afternoon. Chance of snow and slight
chance of light freezing drizzle in the afternoon. Waves 3 to
5 feet subsiding to 3 to 4 feet in the late morning and
afternoon.
.FRIDAY NIGHT...Southwest wind 15 to 20 knots veering west early
in the morning. Gusts up to 25 knots. Chance of snow and slight
chance of light freezing drizzle through around midnight. Waves
3 to 4 feet subsiding to 1 to 2 feet after midnight.
.SATURDAY...Northwest wind 15 to 20 knots easing to 10 to
15 knots in the afternoon. Partly sunny. Waves 1 to 2 feet.

Wave heights are for ice free areas.

$$
LMZ644-051100-
Port Washington to North Point Light WI-
910 PM CST Thu Dec 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING...

.REST OF TONIGHT...Southwest wind 15 to 25 knots. Partly cloudy.
Waves 3 to 4 feet.
.FRIDAY...Southwest wind 15 to 25 knots becoming 15 to 20 knots
in the late morning and afternoon. Slight chance of light
freezing drizzle and snow in the afternoon. Waves 3 to 4 feet.
.FRIDAY NIGHT...Southwest wind 15 to 20 knots veering west early
in the morning. Gusts up to 25 knots. Chance of snow and slight
chance of light freezing drizzle through around midnight. Waves
2 to 4 feet subsiding to 1 to 2 feet after midnight.
.SATURDAY...Northwest wind 15 to 20 knots easing to 10 to
15 knots early in the afternoon, then becoming northwest 10 to
15 knots late in the afternoon. Partly sunny. Waves around
1 foot.

Wave heights are for ice free areas.

$$
LMZ645-051100-
North Point Light to Wind Point WI-
910 PM CST Thu Dec 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING...

.REST OF TONIGHT...Southwest wind 15 to 25 knots. Partly cloudy.
Waves 3 to 4 feet.
.FRIDAY...Southwest wind 15 to 25 knots becoming 15 to 20 knots
early in the afternoon, then becoming 15 to 25 knots late in the
afternoon. Slight chance of light freezing drizzle in the
afternoon. Waves 3 to 4 feet.
.FRIDAY NIGHT...Southwest wind 15 to 25 knots becoming 15 to
20 knots late in the evening, then veering west after midnight
becoming west 15 to 20 knots early in the morning. Chance of snow
and slight chance of light freezing drizzle through around
midnight. Waves 2 to 4 feet subsiding to 1 to 2 feet after
midnight.
.SATURDAY...Northwest wind 15 to 20 knots easing to 10 to
15 knots early in the afternoon, then becoming northwest 10 to
15 knots late in the afternoon. Partly sunny. Waves 1 to 2 feet.

Wave heights are for ice free areas.

$$
LMZ646-051100-
Wind Point WI to Winthrop Harbor IL-
910 PM CST Thu Dec 4 2025

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING...

.REST OF TONIGHT...Southwest wind 15 to 20 knots becoming 15 to
25 knots after midnight. Partly cloudy. Waves 3 to 4 feet.
.FRIDAY...Southwest wind 15 to 25 knots becoming 15 to 20 knots
in the late morning and afternoon. Partly sunny. Waves 3 to
4 feet.
.FRIDAY NIGHT...Southwest wind 15 to 25 knots becoming 15 to
20 knots late in the evening, then veering west after midnight
becoming west 15 to 20 knots early in the morning. Chance of snow
through around midnight. Slight chance of light freezing drizzle
through the night. Waves 2 to 4 feet subsiding to 1 to 2 feet
after midnight.
.SATURDAY...Northwest wind 15 to 20 knots easing to 10 to
15 knots early in the afternoon, then becoming northwest 10 to
15 knots late in the afternoon. Partly sunny. Waves 1 to 2 feet.

Wave heights are for ice free areas.

$$
See Lake Michigan Open Waters Forecast for Sunday through Tuesday.