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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
910 AM CST Sat Dec 6 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-062300-
Sheboygan to Port Washington WI-
910 AM CST Sat Dec 6 2025

.REST OF TODAY...Northwest wind 15 to 20 knots easing to 5 to
10 knots. Partly sunny. Waves around 1 foot.
.TONIGHT...North wind 5 to 10 knots becoming 5 to 15 knots after
midnight, then rising to 10 to 20 knots early in the morning.
Chance of snow through around midnight, then snow after midnight.
Waves around 1 foot.
.SUNDAY...North wind 15 to 20 knots becoming 15 to 25 knots early
in the afternoon, then becoming 15 to 20 knots late in the
afternoon. Chance of snow in the morning. Waves 3 to 4 feet. A
small craft advisory may be needed.
.SUNDAY NIGHT...North wind 15 to 20 knots becoming 10 to 20 knots
late in the evening, then becoming 10 to 15 knots after midnight
easing to 5 to 10 knots early in the morning. Slight chance of
snow after midnight. Waves 3 to 4 feet subsiding to 1 to 2 feet
after midnight.

Wave heights are for ice free areas.

$$
LMZ644-062300-
Port Washington to North Point Light WI-
910 AM CST Sat Dec 6 2025

.REST OF TODAY...Northwest wind 10 to 15 knots easing to 5 to
10 knots late in the afternoon. Partly sunny. Waves around
1 foot.
.TONIGHT...Northwest wind 5 to 10 knots veering north late in the
evening, then becoming 5 to 15 knots after midnight becoming
10 to 15 knots early in the morning. Chance of snow through
around midnight, then snow likely after midnight. Waves around
1 foot.
.SUNDAY...North wind 15 to 20 knots becoming 15 to 25 knots in
the late morning and afternoon. Chance of snow in the morning.
Waves 3 to 4 feet building to 3 to 5 feet in the late morning and
afternoon. A small craft advisory may be needed.
.SUNDAY NIGHT...North wind 15 to 20 knots becoming 10 to 20 knots
late in the evening, then becoming 10 to 15 knots after midnight
becoming north 10 to 15 knots early in the morning. Slight chance
of snow through the night. Waves 3 to 5 feet subsiding to 3 to
4 feet in the late evening and overnight.

Wave heights are for ice free areas.

$$
LMZ645-062300-
North Point Light to Wind Point WI-
910 AM CST Sat Dec 6 2025

.REST OF TODAY...Northwest wind 10 to 15 knots easing to 5 to
10 knots late in the afternoon. Partly sunny. Waves around
1 foot.
.TONIGHT...Northwest wind 5 to 10 knots veering north after
midnight, then rising to 10 to 20 knots early in the morning.
Chance of snow through around midnight, then snow after midnight.
Waves around 1 foot.
.SUNDAY...North wind 15 to 25 knots. Chance of snow in the
morning. Waves 3 to 4 feet building to 4 to 6 feet. A small craft
advisory may be needed.
.SUNDAY NIGHT...North wind 15 to 25 knots becoming 15 to 20 knots
late in the evening, then easing to 10 to 15 knots after midnight
becoming north 10 to 15 knots early in the morning. Slight chance
of snow. Waves 4 to 6 feet subsiding to 3 to 4 feet.

Wave heights are for ice free areas.

$$
LMZ646-062300-
Wind Point WI to Winthrop Harbor IL-
910 AM CST Sat Dec 6 2025

.REST OF TODAY...Northwest wind 10 to 15 knots easing to 5 to
10 knots late in the afternoon. Partly sunny. Waves around
1 foot.
.TONIGHT...Northwest wind 5 to 10 knots becoming north 10 to
15 knots early in the morning. Chance of snow through around
midnight, then snow after midnight. Waves around 1 foot.
.SUNDAY...North wind 15 to 20 knots becoming 15 to 25 knots in
the late morning and afternoon. Chance of snow in the morning.
Waves 4 to 6 feet. A small craft advisory may be needed.
.SUNDAY NIGHT...North wind 15 to 20 knots becoming northeast
10 to 15 knots after midnight. Chance of snow. Waves 4 to 6 feet
subsiding to 3 to 4 feet.

Wave heights are for ice free areas.

$$
See Lake Michigan Open Waters Forecast for Monday through Wednesday.