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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
110 AM CST Tue Dec 9 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-091000-
Sheboygan to Port Washington WI-
110 AM CST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.REST OF TONIGHT...South wind 15 to 25 knots becoming southwest
up to 30 knots early in the morning. Snow after midnight, then
chance of snow and light freezing drizzle early in the morning.
Waves 5 to 7 feet.
.TUESDAY...Southwest wind 15 to 25 knots veering west 15 to
20 knots with gusts to around 25 knots in the late morning and
early afternoon, then becoming southwest 10 to 15 knots late in
the afternoon. Chance of light freezing drizzle in the morning.
Slight chance of light freezing rain and snow in the afternoon.
Waves 4 to 6 feet subsiding to 1 to 2 feet late in the afternoon.
.TUESDAY NIGHT...South wind 10 to 20 knots becoming 15 to
20 knots late in the evening, then veering southwest 15 to
25 knots after midnight veering west early in the morning. Snow
through the night. Rain after midnight. Waves 1 to 2 feet
building to 3 to 5 feet in the late evening and early morning,
then subsiding to 3 to 4 feet early in the morning.
.WEDNESDAY...Northwest gales to 35 knots veering north late in
the morning, then becoming northwest up to 30 knots in the
afternoon. Snow likely and slight chance of rain in the morning,
then slight chance of snow in the afternoon. Waves 4 to 6 feet
building to 5 to 7 feet late in the morning, then building to
6 to 8 feet early in the afternoon subsiding to 4 to 6 feet late
in the afternoon.

Wave heights are for ice free areas.

$$
LMZ644-091000-
Port Washington to North Point Light WI-
110 AM CST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.REST OF TONIGHT...South wind 15 to 25 knots. Gusts up to
30 knots. Snow after midnight, then chance of light freezing
drizzle and slight chance of snow early in the morning. Waves
3 to 5 feet.
.TUESDAY...Southwest wind 15 to 25 knots veering west 15 to
20 knots with gusts to around 25 knots in the late morning and
early afternoon, then becoming southwest 10 to 15 knots late in
the afternoon. Chance of light freezing drizzle in the morning.
Slight chance of light freezing rain and snow in the afternoon.
Waves 3 to 4 feet subsiding to 1 to 2 feet in the afternoon.
.TUESDAY NIGHT...South wind 15 to 20 knots becoming 15 to
25 knots late in the evening, then veering southwest with gusts
to around 30 knots after midnight veering west with gusts to
around 30 knots early in the morning. Snow through around
midnight, then rain and slight chance of snow after midnight.
Waves 1 to 2 feet building to 3 to 4 feet in the late evening and
overnight.
.WEDNESDAY...Northwest gales to 35 knots veering north late in
the morning, then becoming northwest up to 30 knots in the
afternoon. Snow and rain likely in the morning, then slight
chance of snow in the afternoon. Waves 4 to 6 feet building to
5 to 7 feet in the afternoon.

Wave heights are for ice free areas.

$$
LMZ645-091000-
North Point Light to Wind Point WI-
110 AM CST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.REST OF TONIGHT...South wind 15 to 25 knots. Gusts up to
30 knots. Snow after midnight, then chance of light freezing
drizzle and snow early in the morning. Waves 3 to 5 feet.
.TUESDAY...Southwest wind 15 to 25 knots veering west 15 to
20 knots with gusts to around 25 knots late in the morning, then
becoming west 15 to 20 knots early in the afternoon backing
southwest late in the afternoon. Chance of light freezing drizzle
in the morning. Slight chance of light freezing rain in the
afternoon. Waves 3 to 4 feet subsiding to 1 to 2 feet in the
afternoon.
.TUESDAY NIGHT...Southwest wind 15 to 20 knots backing south
15 to 25 knots late in the evening, then veering southwest with
gusts to around 30 knots after midnight becoming west up to
30 knots early in the morning. Snow through around midnight, then
rain and slight chance of snow after midnight. Waves 3 to 5 feet
subsiding to 3 to 4 feet early in the morning.
.WEDNESDAY...Northwest wind up to 30 knots rising to gales to
35 knots late in the morning, then easing to up to 30 knots early
in the afternoon becoming northwest up to 30 knots late in the
afternoon. Snow and rain likely in the morning, then slight
chance of snow in the afternoon. Waves 3 to 5 feet building to
5 to 7 feet late in the morning, then building to 7 to 9 feet
early in the afternoon subsiding to 6 to 8 feet late in the
afternoon.

Wave heights are for ice free areas.

$$
LMZ646-091000-
Wind Point WI to Winthrop Harbor IL-
110 AM CST Tue Dec 9 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL NOON CST TODAY...

.REST OF TONIGHT...South wind 15 to 25 knots. Gusts up to
30 knots. Snow after midnight, then chance of light freezing
drizzle and snow early in the morning. Waves 3 to 5 feet.
.TUESDAY...Southwest wind 15 to 25 knots veering west 15 to
20 knots in the late morning and early afternoon, then becoming
southwest 10 to 15 knots late in the afternoon. Slight chance of
light freezing drizzle in the morning. Slight chance of light
freezing rain in the afternoon. Waves 3 to 4 feet subsiding to
1 to 2 feet in the afternoon.
.TUESDAY NIGHT...Southwest wind 15 to 20 knots backing south
15 to 25 knots late in the evening, then veering southwest after
midnight becoming west up to 30 knots early in the morning. Rain
and snow through around midnight, then chance of rain after
midnight. Waves 3 to 5 feet subsiding to 3 to 4 feet early in the
morning.
.WEDNESDAY...Northwest wind up to 30 knots rising to gales to
35 knots late in the morning, then easing to up to 30 knots early
in the afternoon easing to 15 to 25 knots late in the afternoon.
Snow and rain likely in the morning, then chance of snow in the
afternoon. Waves 5 to 7 feet building to 6 to 8 feet in the
afternoon.

Wave heights are for ice free areas.

$$
See Lake Michigan Open Waters Forecast for Thursday through Saturday.