Nearshore Marine Forecast
Issued by NWS Milwaukee/Sullivan, WI

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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
311 PM CST Fri Dec 5 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-060500-
Sheboygan to Port Washington WI-
311 PM CST Fri Dec 5 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

.TONIGHT...Southwest wind 15 to 20 knots veering northwest early
in the morning. Gusts up to 25 knots. Snow likely in the evening,
then chance of snow and slight chance of light freezing drizzle
late in the evening. Slight chance of snow after 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 in the afternoon. Partly sunny. Waves 2 to 4 feet
subsiding to around 1 foot in the late morning and afternoon.
.SATURDAY NIGHT...Northwest wind 5 to 10 knots veering north
after midnight, then rising to 10 to 15 knots early in the
morning. Snow likely after midnight. Waves around 1 foot.
.SUNDAY...North wind 15 to 20 knots. Chance of snow in the
morning. Waves 2 to 4 feet.

Wave heights are for ice free areas.

$$
LMZ644-060500-
Port Washington to North Point Light WI-
311 PM CST Fri Dec 5 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

.TONIGHT...Southwest wind 15 to 20 knots veering northwest early
in the morning. Gusts up to 25 knots. Snow likely in the evening,
then chance of snow and slight chance of light freezing drizzle
late in the evening. Slight chance of snow after 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.
.SATURDAY NIGHT...Northwest wind 5 to 10 knots rising to 10 to
15 knots early in the morning. Snow likely after midnight. Waves
around 1 foot.
.SUNDAY...North wind 10 to 20 knots becoming 15 to 20 knots late
in the morning, then becoming 15 to 25 knots early in the
afternoon becoming north 15 to 25 knots late in the afternoon.
Chance of snow in the morning. Waves 1 to 2 feet building to 3 to
5 feet.

Wave heights are for ice free areas.

$$
LMZ645-060500-
North Point Light to Wind Point WI-
311 PM CST Fri Dec 5 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

.TONIGHT...Southwest wind 15 to 20 knots veering northwest early
in the morning. Gusts up to 25 knots. Chance of snow and slight
chance of light freezing drizzle through around midnight, then
slight chance of snow after 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 2 to 4 feet
subsiding to 1 to 2 feet in the late morning and afternoon.
.SATURDAY NIGHT...Northwest wind 5 to 10 knots becoming north
10 to 15 knots early in the morning. Snow likely after midnight.
Waves around 1 foot.
.SUNDAY...North wind 15 to 20 knots becoming 15 to 25 knots in
the afternoon. Chance of snow in the morning. Waves 3 to 5 feet
building to 4 to 6 feet late in the afternoon.

Wave heights are for ice free areas.

$$
LMZ646-060500-
Wind Point WI to Winthrop Harbor IL-
311 PM CST Fri Dec 5 2025

...SMALL CRAFT ADVISORY IN EFFECT UNTIL MIDNIGHT CST TONIGHT...

.TONIGHT...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, then
slight chance of snow after 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 easing to 5 to 10 knots
late in the afternoon. Partly sunny. Waves around 1 foot.
.SATURDAY NIGHT...Northwest wind 5 to 10 knots becoming north
10 to 15 knots early in the morning. Snow likely after midnight.
Waves around 1 foot.
.SUNDAY...North wind 10 to 20 knots becoming 15 to 20 knots in
the late morning and afternoon. Chance of snow in the morning,
then slight chance of snow in the afternoon. Waves 3 to 4 feet
building to 4 to 6 feet in the afternoon.

Wave heights are for ice free areas.

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