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FZUS53 KMKX 162210
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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
510 PM CDT Thu Oct 16 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-170400-
Sheboygan to Port Washington WI-
510 PM CDT Thu Oct 16 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT FRIDAY THROUGH
SATURDAY MORNING...

.TONIGHT...South wind 10 to 15 knots rising to 15 to 20 knots in
the late evening and early morning, then becoming south 15 to
20 knots with gusts to around 25 knots early in the morning.
Isolated showers in the evening, then scattered showers late in
the evening. Isolated showers after midnight. Waves 3 to 4 feet
building to 4 to 6 feet early in the morning.
.FRIDAY...South wind 15 to 20 knots becoming 15 to 25 knots late
in the morning, then becoming south 15 to 25 knots in the
afternoon. Gusts up to 30 knots. Mostly cloudy. Waves 4 to 6 feet
building to 6 to 8 feet in the afternoon.
.FRIDAY NIGHT...South wind up to 30 knots easing to 15 to
25 knots late in the evening, then becoming south 15 to 25 knots
after midnight veering southwest 15 to 20 knots early in the
morning. Slight chance of thunderstorms through around midnight.
Chance of showers through the night. Chance of thunderstorms
after midnight. Waves 7 to 9 feet subsiding to 4 to 6 feet.
.SATURDAY...Southwest wind 10 to 15 knots. Chance of
thunderstorms in the morning. Showers likely through the day.
Slight chance of thunderstorms in the afternoon. Waves 3 to
5 feet subsiding to 3 to 4 feet in the late morning and
afternoon.

$$
LMZ644-170400-
Port Washington to North Point Light WI-
510 PM CDT Thu Oct 16 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT FRIDAY THROUGH
SATURDAY MORNING...

.TONIGHT...Southeast wind 10 to 15 knots veering south with gusts
to around 20 knots late in the evening, then rising to 15 to
20 knots after midnight becoming south 15 to 20 knots early in
the morning. Isolated showers late in the evening. Waves 3 to
4 feet building to 3 to 5 feet early in the morning.
.FRIDAY...South wind 15 to 20 knots becoming 10 to 20 knots early
in the afternoon, then rising to 15 to 25 knots late in the
afternoon. Mostly cloudy. Waves 3 to 5 feet building to 4 to
6 feet late in the afternoon.
.FRIDAY NIGHT...South wind 15 to 25 knots veering southwest 15 to
20 knots early in the morning. Slight chance of thunderstorms
through around midnight. Chance of showers through the night.
Chance of thunderstorms after midnight. Waves 5 to 7 feet
subsiding to 4 to 6 feet after midnight.
.SATURDAY...Southwest wind 15 to 20 knots easing to 10 to
15 knots late in the morning, then becoming southwest 10 to
15 knots in the afternoon. Chance of thunderstorms in the
morning. Showers likely through the day. Slight chance of
thunderstorms in the afternoon. Waves 2 to 4 feet subsiding to
1 to 2 feet in the afternoon.

$$
LMZ645-170400-
North Point Light to Wind Point WI-
510 PM CDT Thu Oct 16 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT FRIDAY THROUGH
SATURDAY MORNING...

.TONIGHT...Southeast wind 10 to 15 knots becoming southeast 10 to
15 knots with gusts to around 20 knots late in the evening, then
becoming south 15 to 20 knots after midnight becoming south 15 to
20 knots with gusts to around 25 knots early in the morning.
Mostly cloudy. Waves 3 to 4 feet.
.FRIDAY...South wind 15 to 20 knots becoming 10 to 20 knots early
in the afternoon, then rising to 15 to 25 knots late in the
afternoon. Mostly cloudy. Waves 3 to 4 feet building to 3 to
5 feet late in the afternoon.
.FRIDAY NIGHT...South wind 15 to 25 knots veering southwest 15 to
20 knots early in the morning. Chance of showers and slight
chance of thunderstorms through around midnight, then showers
likely and a chance of thunderstorms after midnight. Waves 4 to
6 feet subsiding to 3 to 5 feet in the late evening and early
morning, then subsiding to 3 to 4 feet early in the morning.
.SATURDAY...Southwest wind 15 to 20 knots easing to 10 to
15 knots in the afternoon. Chance of thunderstorms in the
morning. Showers likely through the day. Slight chance of
thunderstorms in the afternoon. Waves 3 to 4 feet subsiding to
1 to 2 feet in the afternoon.

$$
LMZ646-170400-
Wind Point WI to Winthrop Harbor IL-
510 PM CDT Thu Oct 16 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT FRIDAY THROUGH
SATURDAY MORNING...

.TONIGHT...Southeast wind 10 to 15 knots becoming southeast 10 to
15 knots with gusts to around 20 knots late in the evening, then
becoming south 15 to 20 knots after midnight. Partly cloudy.
Waves 1 to 3 feet building to 3 to 4 feet in the late evening and
overnight.
.FRIDAY...South wind 15 to 20 knots. Gusts up to 25 knots. Mostly
cloudy. Waves 3 to 4 feet building to 3 to 5 feet late in the
afternoon.
.FRIDAY NIGHT...South wind 15 to 25 knots becoming 15 to 20 knots
early in the morning. Chance of showers through around midnight,
then showers likely and a chance of thunderstorms after midnight.
Waves 3 to 5 feet subsiding to 3 to 4 feet early in the morning.
.SATURDAY...Southwest wind 15 to 20 knots easing to 10 to
15 knots early in the afternoon, then becoming southwest 10 to
15 knots late in the afternoon. Showers likely and a chance of
thunderstorms. Waves 3 to 4 feet subsiding to 1 to 2 feet in the
afternoon.

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