590
FZUS53 KMKX 162005
NSHMKX

Nearshore Marine Forecast
National Weather Service Milwaukee/Sullivan WI
305 PM CDT Wed Jul 16 2025

For waters within five nautical miles of shore on Lake Michigan

LMZ643-170900-
Sheboygan to Port Washington WI-
305 PM CDT Wed Jul 16 2025

...TORNADO WATCH 517 IN EFFECT UNTIL 6 PM CDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM CDT THIS EVENING
THROUGH LATE THURSDAY NIGHT...

.THROUGH EARLY EVENING...East wind 5 to 10 knots becoming
northeast 10 to 15 knots late in the afternoon. Mostly cloudy
with a 50 percent chance of showers and thunderstorms. Some
thunderstorms may be severe with damaging winds, large hail, and
tornadoes. Waves 1 to 2 feet.
.TONIGHT...Northeast wind 15 to 20 knots backing northwest early
in the morning. Gusts up to 25 knots. Showers likely and a chance
of thunderstorms through around midnight, then chance of showers
after midnight. Waves 3 to 4 feet building to 3 to 5 feet.
.THURSDAY...Northwest wind 15 to 20 knots veering northeast late
in the afternoon. Mostly cloudy. Waves 3 to 4 feet.
.THURSDAY NIGHT...Northeast wind 10 to 15 knots easing to 5 to
10 knots early in the morning. Mostly clear. Waves 3 to 4 feet
subsiding to 1 to 3 feet early in the morning.
.FRIDAY...East wind 5 to 10 knots veering southeast in the
afternoon. Sunny. Waves 1 to 2 feet.

$$
LMZ644-170900-
Port Washington to North Point Light WI-
305 PM CDT Wed Jul 16 2025

...TORNADO WATCH 517 IN EFFECT UNTIL 6 PM CDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 7 PM CDT THIS EVENING
THROUGH LATE THURSDAY NIGHT...

.THROUGH EARLY EVENING...Southeast wind 5 to 10 knots rising to
10 to 15 knots late in the afternoon. Showers likely and a chance
of thunderstorms. Some thunderstorms may be severe with damaging
winds, large hail, and tornadoes. Waves around 1 foot.
.TONIGHT...North wind 10 to 15 knots becoming 10 to 20 knots late
in the evening, then backing northwest 15 to 20 knots after
midnight. Showers and a chance of thunderstorms through around
midnight, then chance of showers after midnight. Waves 1 to
2 feet building to 3 to 4 feet in the late evening and overnight.
.THURSDAY...Northwest wind 15 to 20 knots veering north 10 to
20 knots in the late morning and early afternoon, then veering
northeast 15 to 20 knots late in the afternoon. Mostly cloudy.
Waves 3 to 4 feet.
.THURSDAY NIGHT...Northeast wind 15 to 20 knots easing to 10 to
15 knots late in the evening, then becoming northeast 10 to
15 knots after midnight. Mostly clear. Waves 3 to 4 feet.
.FRIDAY...East wind 10 to 15 knots becoming southeast 5 to
10 knots in the afternoon. Sunny. Waves 1 to 2 feet.

$$
LMZ645-170900-
North Point Light to Wind Point WI-
305 PM CDT Wed Jul 16 2025

...TORNADO WATCH 517 IN EFFECT UNTIL 6 PM CDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT THURSDAY THROUGH
LATE THURSDAY NIGHT...

.THROUGH EARLY EVENING...Southeast wind 10 to 15 knots veering
south late in the afternoon. Partly sunny with a 50 percent
chance of showers and thunderstorms. Some thunderstorms may be
severe with damaging winds, large hail, and tornadoes. Waves
around 1 foot.
.TONIGHT...Southwest wind 10 to 15 knots veering northwest late
in the evening, then rising to 15 to 20 knots after midnight.
Showers likely and a chance of thunderstorms through around
midnight, then chance of showers after midnight. Waves 1 to
2 feet building to 3 to 4 feet after midnight.
.THURSDAY...North wind 15 to 20 knots becoming 10 to 20 knots
late in the morning, then becoming north 10 to 20 knots early in
the afternoon becoming 15 to 20 knots late in the afternoon.
Mostly cloudy. Waves 3 to 4 feet building to 4 to 6 feet late in
the afternoon.
.THURSDAY NIGHT...North wind 15 to 20 knots becoming northeast
10 to 15 knots in the late evening and overnight. Partly cloudy.
Waves 4 to 6 feet subsiding to 3 to 4 feet in the late evening
and overnight.
.FRIDAY...East wind 10 to 15 knots easing to 5 to 10 knots in the
afternoon. Mostly sunny. Waves 2 to 4 feet subsiding to 1 to
2 feet in the late morning and afternoon.

$$
LMZ646-170900-
Wind Point WI to Winthrop Harbor IL-
305 PM CDT Wed Jul 16 2025

...TORNADO WATCH 517 IN EFFECT UNTIL 6 PM CDT THIS EVENING...
...SMALL CRAFT ADVISORY IN EFFECT FROM 1 AM CDT THURSDAY THROUGH
LATE THURSDAY NIGHT...

.THROUGH EARLY EVENING...South wind 10 to 15 knots. Partly sunny
with a 50 percent chance of showers and thunderstorms. Some
thunderstorms may be severe with damaging winds, large hail, and
tornadoes. Waves around 1 foot.
.TONIGHT...Southwest wind 10 to 15 knots veering northwest with
gusts to around 20 knots after midnight. Showers likely and a
chance of thunderstorms through around midnight, then chance of
showers and slight chance of thunderstorms after midnight. Waves
around 1 foot building to 3 to 4 feet after midnight.
.THURSDAY...Northwest wind 15 to 20 knots veering north 10 to
20 knots in the late morning and early afternoon, then becoming
15 to 20 knots late in the afternoon. Slight chance of showers in
the morning. Waves 3 to 4 feet building to 3 to 5 feet late in
the afternoon.
.THURSDAY NIGHT...North wind 15 to 20 knots easing to 10 to
15 knots late in the evening, then veering northeast after
midnight becoming northeast 10 to 15 knots early in the morning.
Partly cloudy. Waves 3 to 5 feet subsiding to 3 to 4 feet in the
late evening and overnight.
.FRIDAY...East wind 10 to 15 knots easing to 5 to 10 knots in the
afternoon. Mostly sunny. Waves 2 to 4 feet subsiding to 1 to
2 feet in the late morning and afternoon.

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