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FZUS53 KMKX 201205
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Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
705 AM CDT Sun Apr 20 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-201600-
Sheboygan to Port Washington WI-
705 AM CDT Sun Apr 20 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM CDT THIS EVENING
THROUGH MONDAY EVENING...

.TODAY...East wind 10 to 15 knots becoming northeast 15 to
20 knots late in the afternoon. Slight chance of showers early in
the afternoon. Chance of showers late in the afternoon. Waves
1 to 2 feet building to 2 to 4 feet in the late morning and
afternoon.
.TONIGHT...Northeast wind 15 to 20 knots veering east 10 to
20 knots with gusts to around 25 knots late in the evening, then
rising to 15 to 25 knots after midnight veering southeast with
gusts to around 30 knots early in the morning. Rain showers and
slight chance of thunderstorms. Waves 3 to 4 feet building to
8 to 10 feet.
.MONDAY...Southeast wind 15 to 25 knots veering west late in the
afternoon. Gusts up to 30 knots. Slight chance of thunderstorms
in the morning. Chance of showers through the day. Waves 7 to
9 feet subsiding to 3 to 5 feet.
.MONDAY NIGHT...West wind 15 to 25 knots becoming 15 to 20 knots
late in the evening, then becoming 10 to 20 knots after midnight
becoming 10 to 15 knots early in the morning. Partly cloudy.
Waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening
and overnight.

$$
LMZ644-201600-
Port Washington to North Point Light WI-
705 AM CDT Sun Apr 20 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM CDT THIS EVENING
THROUGH MONDAY EVENING...

.TODAY...East wind 10 to 15 knots becoming east 10 to 15 knots
with gusts to around 20 knots early in the afternoon, then
becoming northeast 15 to 20 knots late in the afternoon. Chance
of showers early in the afternoon. Rain showers likely late in
the afternoon. Waves 1 to 2 feet building to 3 to 4 feet in the
late morning and afternoon.
.TONIGHT...East wind 15 to 20 knots becoming 15 to 25 knots late
in the evening, then becoming east 15 to 25 knots after midnight
veering southeast early in the morning. Gusts up to 30 knots.
Rain showers likely through around midnight. Slight chance of
thunderstorms through the night. Rain showers after midnight.
Waves 3 to 5 feet building to 7 to 9 feet.
.MONDAY...South wind 15 to 25 knots veering west late in the
afternoon. Gusts up to 30 knots. Chance of showers and slight
chance of thunderstorms in the morning, then slight chance of
showers in the afternoon. Waves 8 to 10 feet subsiding to 3 to
4 feet.
.MONDAY NIGHT...West wind 15 to 20 knots with gusts to around
25 knots becoming west 15 to 20 knots late in the evening, then
easing to 10 to 15 knots with gusts to around 20 knots after
midnight. Partly cloudy. Waves 2 to 4 feet subsiding to around
1 foot in the late evening and overnight.

$$
LMZ645-201600-
North Point Light to Wind Point WI-
705 AM CDT Sun Apr 20 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM CDT THIS EVENING
THROUGH MONDAY EVENING...

.TODAY...East wind 10 to 15 knots rising to 15 to 20 knots late
in the morning, then becoming east 15 to 20 knots in the
afternoon. Chance of showers early in the afternoon. Rain showers
likely late in the afternoon. Waves 1 to 2 feet building to 3 to
4 feet in the late morning and afternoon.
.TONIGHT...East wind 15 to 20 knots becoming 15 to 25 knots late
in the evening, then veering southeast after midnight rising to
up to 30 knots early in the morning. Rain showers likely through
around midnight. Slight chance of thunderstorms through the
night. Rain showers after midnight. Waves 4 to 6 feet building to
7 to 9 feet.
.MONDAY...South wind 15 to 25 knots veering west late in the
afternoon. Gusts up to 30 knots. Chance of showers and slight
chance of thunderstorms in the morning, then slight chance of
showers in the afternoon. Waves 6 to 8 feet subsiding to 4 to
6 feet in the late morning and afternoon.
.MONDAY NIGHT...West wind 15 to 20 knots with gusts to around
25 knots becoming west 15 to 20 knots late in the evening, then
easing to 10 to 15 knots after midnight. Partly cloudy. Waves
2 to 4 feet subsiding to around 1 foot in the late evening and
overnight.

$$
LMZ646-201600-
Wind Point WI to Winthrop Harbor IL-
705 AM CDT Sun Apr 20 2025

...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM CDT THIS EVENING
THROUGH MONDAY EVENING...

.TODAY...East wind 10 to 15 knots rising to 15 to 20 knots late
in the morning, then becoming east 15 to 20 knots in the
afternoon. Chance of showers early in the afternoon. Rain showers
likely late in the afternoon. Waves 1 to 2 feet building to 3 to
4 feet in the late morning and afternoon.
.TONIGHT...East wind 15 to 25 knots veering southeast after
midnight, then rising to up to 30 knots early in the morning.
Rain showers likely and a chance of thunderstorms through around
midnight, then showers and slight chance of thunderstorms after
midnight. Waves 4 to 6 feet building to 7 to 9 feet.
.MONDAY...South wind 15 to 25 knots veering west late in the
afternoon. Gusts up to 30 knots. Chance of showers and slight
chance of thunderstorms in the morning. Waves 6 to 8 feet
subsiding to 4 to 6 feet in the late morning and afternoon.
.MONDAY NIGHT...West wind 15 to 20 knots with gusts to around
25 knots becoming west 15 to 20 knots late in the evening, then
easing to 10 to 15 knots after midnight. Partly cloudy. Waves
around 1 foot.

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