Nearshore Marine Forecast
Issued by NWS Milwaukee/Sullivan, WI

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FZUS53 KMKX 272005
NSHMKX

Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
305 PM CDT Wed Aug 27 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-280900-
Sheboygan to Port Washington WI-
305 PM CDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY AFTERNOON THROUGH
FRIDAY MORNING...

.THROUGH EARLY EVENING...Southwest wind 10 to 15 knots. Partly
sunny. Waves around 1 foot.
.TONIGHT...Southwest wind 10 to 15 knots veering west with gusts
to around 20 knots early in the morning. Slight chance of
thunderstorms after midnight. Chance of showers after midnight.
Chance of thunderstorms early in the morning. Waves 1 to 2 feet.
.THURSDAY...Northwest wind 10 to 15 knots becoming north 15 to
20 knots in the late morning and early afternoon, then veering
northeast late in the afternoon. Chance of showers and
thunderstorms in the morning. Waves 1 to 2 feet building to 3 to
5 feet.
.THURSDAY NIGHT...Northeast wind 15 to 20 knots easing to 10 to
15 knots after midnight. Partly cloudy. Waves 4 to 6 feet
subsiding to 3 to 4 feet after midnight.
.FRIDAY...North wind 5 to 10 knots veering northeast late in the
afternoon. Mostly sunny. Waves 2 to 4 feet subsiding to 1 to
2 feet in the late morning and afternoon.

$$
LMZ644-280900-
Port Washington to North Point Light WI-
305 PM CDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY AFTERNOON THROUGH
FRIDAY MORNING...

.THROUGH EARLY EVENING...Southwest wind 10 to 15 knots. Partly
sunny. Waves around 1 foot.
.TONIGHT...Southwest wind 10 to 15 knots veering west with gusts
to around 20 knots early in the morning. Chance of showers and
slight chance of thunderstorms after midnight. Waves around
1 foot.
.THURSDAY...West wind 10 to 15 knots veering northwest late in
the morning, then becoming north 15 to 20 knots early in the
afternoon veering northeast late in the afternoon. Chance of
showers in the morning. Slight chance of thunderstorms through
the day. Slight chance of showers in the afternoon. Waves around
1 foot building to 3 to 5 feet in the afternoon.
.THURSDAY NIGHT...Northeast wind 15 to 20 knots easing to 10 to
15 knots after midnight. Partly cloudy. Waves 4 to 6 feet
subsiding to 3 to 4 feet early in the morning.
.FRIDAY...Northeast wind 5 to 10 knots. Mostly sunny. Waves 3 to
4 feet subsiding to 1 to 2 feet in the afternoon.

$$
LMZ645-280900-
North Point Light to Wind Point WI-
305 PM CDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY AFTERNOON THROUGH
FRIDAY MORNING...

.THROUGH EARLY EVENING...Southwest wind 10 to 15 knots. Partly
sunny. Waves around 1 foot.
.TONIGHT...Southwest wind 10 to 15 knots veering west with gusts
to around 20 knots early in the morning. Slight chance of
thunderstorms after midnight. Chance of showers after midnight.
Chance of thunderstorms early in the morning. Waves around
1 foot.
.THURSDAY...West wind 10 to 15 knots veering northwest late in
the morning, then becoming north 15 to 20 knots in the afternoon.
Chance of showers and thunderstorms in the morning, then slight
chance of showers and thunderstorms in the afternoon. Waves
around 1 foot building to 3 to 5 feet in the afternoon.
.THURSDAY NIGHT...North wind 15 to 20 knots veering northeast
late in the evening, then becoming 10 to 20 knots after midnight
becoming 10 to 15 knots early in the morning. Partly cloudy.
Waves 5 to 7 feet subsiding to 4 to 6 feet after midnight.
.FRIDAY...Northeast wind 10 to 15 knots easing to 5 to 10 knots
in the afternoon. Mostly sunny. Waves 3 to 4 feet subsiding to
1 to 3 feet in the afternoon.

$$
LMZ646-280900-
Wind Point WI to Winthrop Harbor IL-
305 PM CDT Wed Aug 27 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM THURSDAY AFTERNOON THROUGH
FRIDAY MORNING...

.THROUGH EARLY EVENING...Southwest wind 10 to 15 knots veering
west late in the afternoon. Partly sunny. Waves around 1 foot.
.TONIGHT...Southwest wind 10 to 15 knots veering west with gusts
to around 20 knots early in the morning. Slight chance of
thunderstorms after midnight. Chance of showers after midnight.
Chance of thunderstorms early in the morning. Waves around
1 foot.
.THURSDAY...West wind 10 to 15 knots veering northwest late in
the morning, then veering north 10 to 20 knots early in the
afternoon becoming 15 to 20 knots late in the afternoon. Chance
of showers and thunderstorms in the morning, then slight chance
of showers and thunderstorms in the afternoon. Waves 1 to 2 feet
building to 3 to 5 feet late in the afternoon.
.THURSDAY NIGHT...North wind 10 to 20 knots veering northeast
15 to 20 knots in the late evening and early morning, then easing
to 10 to 15 knots early in the morning. Partly cloudy. Waves 4 to
6 feet.
.FRIDAY...Northeast wind 10 to 15 knots easing to 5 to 10 knots
in the afternoon. Partly sunny. Waves 3 to 4 feet subsiding to
1 to 3 feet late in the afternoon.

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