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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
911 AM CDT Sat Nov 1 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-012200-
Sheboygan to Port Washington WI-
911 AM CDT Sat Nov 1 2025

.REST OF TODAY...North wind 10 to 15 knots. Slight chance of
waterspouts through the day. chance of rain late in the morning
and early afternoon. Slight chance of rain late in the afternoon.
Waves 2 to 4 feet.
.TONIGHT...North wind 10 to 15 knots easing to 5 to 10 knots late
in the evening, then becoming north 5 to 10 knots after midnight
backing northwest early in the morning. Partly cloudy. Waves 1 to
2 feet.
.SUNDAY...Northwest wind 5 to 10 knots backing southwest 5 to
15 knots late in the morning, then rising to 10 to 20 knots early
in the afternoon rising to 15 to 25 knots late in the afternoon.
Sunny in the morning then becoming partly sunny. Waves around
1 foot building to 3 to 4 feet late in the afternoon. A small
craft advisory may be needed.
.SUNDAY NIGHT...Southwest wind up to 30 knots. Slight chance of
rain through around midnight, then chance of rain after midnight.
Waves 4 to 6 feet building to 5 to 7 feet in the late evening and
early morning, then subsiding to 4 to 6 feet early in the
morning.

$$
LMZ644-012200-
Port Washington to North Point Light WI-
911 AM CDT Sat Nov 1 2025

.REST OF TODAY...North wind 10 to 15 knots. Slight chance of
waterspouts through the day. rain likely late in the morning.
Chance of rain in the afternoon. Waves 2 to 4 feet.
.TONIGHT...North wind 10 to 15 knots easing to 5 to 10 knots
after midnight, then backing northwest early in the morning.
Slight chance of rain through around midnight. Waves 2 to 4 feet
subsiding to 1 to 2 feet in the late evening and overnight.
.SUNDAY...Northwest wind 5 to 10 knots backing southwest late in
the morning, then rising to 10 to 20 knots early in the afternoon
rising to 15 to 25 knots late in the afternoon. Mostly sunny.
Waves 1 to 2 feet building to 3 to 4 feet late in the afternoon.
A small craft advisory may be needed.
.SUNDAY NIGHT...Southwest wind up to 30 knots. Slight chance of
rain through around midnight, then chance of rain after midnight.
Waves 4 to 6 feet.

$$
LMZ645-012200-
North Point Light to Wind Point WI-
911 AM CDT Sat Nov 1 2025

.REST OF TODAY...Northwest wind 10 to 15 knots veering north in
the afternoon. Slight chance of waterspouts through the day. rain
likely and slight chance of thunderstorms late in the morning and
early afternoon. Chance of rain late in the afternoon. Waves 1 to
2 feet building to 2 to 4 feet in the afternoon.
.TONIGHT...North wind 10 to 15 knots easing to 5 to 10 knots
after midnight, then becoming north 5 to 10 knots early in the
morning. Slight chance of waterspouts through around midnight.
chance of rain through around midnight. Waves 2 to 4 feet
subsiding to 1 to 2 feet after midnight.
.SUNDAY...Northwest wind 5 to 10 knots backing southwest late in
the morning, then rising to 10 to 20 knots early in the afternoon
rising to 15 to 25 knots late in the afternoon. Mostly sunny.
Waves 1 to 2 feet building to 2 to 4 feet late in the afternoon.
A small craft advisory may be needed.
.SUNDAY NIGHT...Southwest wind 15 to 25 knots rising to up to
30 knots late in the evening, then becoming southwest up to
30 knots after midnight. Chance of rain after midnight. Waves
3 to 4 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.

$$
LMZ646-012200-
Wind Point WI to Winthrop Harbor IL-
911 AM CDT Sat Nov 1 2025

.REST OF TODAY...Northwest wind 10 to 15 knots easing to 5 to
10 knots early in the afternoon, then becoming north 10 to
15 knots late in the afternoon. Slight chance of waterspouts
through the day. slight chance of thunderstorms late in the
morning and early afternoon. Chance of rain through the day.
Waves 1 to 2 feet.
.TONIGHT...North wind 10 to 15 knots easing to 5 to 10 knots
after midnight, then becoming north 5 to 10 knots early in the
morning. Slight chance of waterspouts through around midnight.
chance of rain through around midnight. Waves 1 to 2 feet.
.SUNDAY...Northwest wind 5 to 10 knots backing southwest late in
the morning, then rising to 10 to 15 knots early in the afternoon
rising to 15 to 20 knots late in the afternoon. Mostly sunny.
Waves 1 to 2 feet.
.SUNDAY NIGHT...Southwest wind 15 to 25 knots rising to up to
30 knots after midnight. Chance of rain after midnight. Waves
3 to 4 feet. A small craft advisory may be needed.

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