National Weather Service United States Department of Commerce

FZUS61 KMKX 242005
GLFLMT

Experimental Tabular Open Lake Forecast FOR Lake Michigan
National Weather Service Milwaukee/Sullivan WI
305 PM CDT Thu Jul 24 2025

Waves are the significant wave height - the average of the highest
1/3 of the wave spectrum.   Occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.SYNOPSIS...

LMZ261-362-364-366-563-565-567-868-250300-
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and north of a line from Charlevoix MI to South
Fox Island 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid
Lake-
305 PM CDT Thu Jul 24 2025

.TONIGHT...
WEATHER.............Mostly cloudy with scattered showers and
                              isolated thunderstorms. mostly cloudy until
                              early morning. mostly cloudy with patchy fog.
SFC WINDS...........North 5 to 10 knots.
100-FT WINDS........North 10 to 15 knots.
SIG WAVES...........2 to 4 feet / around 1 meter /.
OCNL WAVES..........Around 5 feet / 2 meters /.

.FRIDAY...
WEATHER.............Mostly sunny with patchy fog. mostly sunny.
SFC WINDS...........North 5 to 10 knots.
100-FT WINDS........North 10 to 15 knots.
SIG WAVES...........1 to 3 feet / 1 meter or less /.

.FRIDAY NIGHT...
WEATHER.............Mostly cloudy.
SFC WINDS...........Light and variable winds...becoming southeast 5
                              to 10 knots after midnight.
100-FT WINDS........Light and variable winds...becoming southeast
                              10 to 15 knots after midnight.
SIG WAVES...........1 to 3 feet / 1 meter or less /.

.SATURDAY...
WEATHER.............Partly sunny. chance of showers. partly sunny
                              with chance of thunderstorms.
SFC WINDS...........South 5 to 10 knots.
100-FT WINDS........South 10 to 15 knots.
SIG WAVES...........2 to 4 feet / around 1 meter /.
OCNL WAVES..........Around 5 feet / 2 meters /.

.SATURDAY NIGHT...
WEATHER.............Mostly cloudy. chance of showers until early
                              morning. mostly cloudy.
SFC WINDS...........South 5 to 10 knots...becoming west in the late
                              evening and overnight.
100-FT WINDS........South 10 to 15 knots...becoming west in the
                              late evening and overnight.
SIG WAVES...........2 to 4 feet / around 1 meter /.
OCNL WAVES..........Around 5 feet / 2 meters /.


.FORECAST DAYS 3 THROUGH 5...

.SUNDAY...Slight chance of thunderstorms. Southwest winds 5 to
10 knots. Waves 2 to 4 feet / around 1 meter /.
.MONDAY...Chance of showers. chance of thunderstorms in the
afternoon. Southwest winds 5 to 10 knots. Waves 2 to 4 feet /
around 1 meter /.
.TUESDAY...North winds 10 to 15 knots. Waves 2 to 4 feet / around
1 meter /.

$$

LMZ669-671-673-675-870-872-250300-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
305 PM CDT Thu Jul 24 2025

.TONIGHT...
WEATHER.............Mostly cloudy with scattered showers and
                              thunderstorms. mostly cloudy. mostly cloudy
                              with a slight chance of showers and
                              thunderstorms, then mostly cloudy with patchy
                              fog after midnight.
SFC WINDS...........West 5 to 10 knots...becoming north after
                              midnight.
100-FT WINDS........West 10 to 15 knots...becoming north after
                              midnight.
SIG WAVES...........2 to 4 feet / around 1 meter /.
OCNL WAVES..........Around 5 feet / 2 meters /.

.FRIDAY...
WEATHER.............Mostly cloudy with patchy fog. partly sunny.
SFC WINDS...........North 5 to 10 knots.
100-FT WINDS........North 10 to 15 knots.
SIG WAVES...........1 to 3 feet / 1 meter or less /.

.FRIDAY NIGHT...
WEATHER.............Mostly cloudy. chance of showers in the late
                              evening and overnight. mostly cloudy.
SFC WINDS...........Northeast 5 to 10 knots...becoming southeast
                              after midnight.
100-FT WINDS........Northeast 10 to 15 knots...becoming southeast
                              after midnight.
SIG WAVES...........1 to 3 feet / 1 meter or less /.

.SATURDAY...
WEATHER.............Mostly cloudy. chance of showers. mostly cloudy
                              with chance of thunderstorms.
SFC WINDS...........South 10 to 15 knots.
100-FT WINDS........South 15 to 20 knots.
SIG WAVES...........2 to 4 feet / around 1 meter /.
OCNL WAVES..........Around 5 feet / 2 meters /.

.SATURDAY NIGHT...
WEATHER.............Mostly cloudy with chance of thunderstorms.
                              mostly cloudy with chance of showers. mostly
                              cloudy.
SFC WINDS...........Southwest 10 to 15 knots...becoming west in the
                              late evening and overnight.
100-FT WINDS........Southwest 15 to 20 knots...becoming west in the
                              late evening and overnight.
SIG WAVES...........2 to 4 feet / around 1 meter /.
OCNL WAVES..........Around 5 feet / 2 meters /.


.FORECAST DAYS 3 THROUGH 5...

.SUNDAY...Slight chance of thunderstorms. Southwest winds 5 to
10 knots. Waves 2 to 4 feet / around 1 meter /.
.MONDAY...Chance of showers. chance of thunderstorms in the
afternoon. Southwest winds 5 to 10 knots. Waves 2 to 4 feet /
around 1 meter /.
.TUESDAY...North winds 10 to 15 knots. Waves 2 to 4 feet / around
1 meter /.

$$

LMZ080-777-779-874-876-878-250300-
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
305 PM CDT Thu Jul 24 2025

...severe thunderstorm watch 540 in effect until 9 pm cdt this
evening...

.TONIGHT...
WEATHER.............Mostly cloudy with scattered showers and
                              thunderstorms. mostly cloudy. mostly cloudy
                              with a slight chance of showers and
                              thunderstorms.
SFC WINDS...........West 5 to 10 knots...becoming northwest after
                              midnight.
100-FT WINDS........West 10 to 15 knots...becoming northwest after
                              midnight.
SIG WAVES...........2 to 4 feet / around 1 meter /.
OCNL WAVES..........Around 5 feet / 2 meters /.

.FRIDAY...
WEATHER.............Mostly cloudy with a slight chance of showers.
                              partly sunny.
SFC WINDS...........North 10 to 15 knots.
100-FT WINDS........North 15 to 20 knots.
SIG WAVES...........1 to 3 feet / 1 meter or less /.

.FRIDAY NIGHT...
WEATHER.............Mostly cloudy until early morning. mostly
                              cloudy in the late evening and early morning,
                              then mostly cloudy with chance of showers.
SFC WINDS...........North 5 to 10 knots...becoming southeast after
                              midnight.
100-FT WINDS........North 10 to 15 knots...becoming southeast after
                              midnight.
SIG WAVES...........1 to 3 feet / 1 meter or less /.

.SATURDAY...
WEATHER.............Showers likely. chance of thunderstorms. partly
                              sunny with chance of showers.
SFC WINDS...........South 5 to 10 knots.
100-FT WINDS........South 10 to 15 knots.
SIG WAVES...........2 to 4 feet / around 1 meter /.
OCNL WAVES..........Around 5 feet / 2 meters /.

.SATURDAY NIGHT...
WEATHER.............Mostly cloudy with chance of thunderstorms.
                              mostly cloudy with chance of showers. mostly
                              cloudy.
SFC WINDS...........Southwest 10 to 15 knots...becoming west after
                              midnight.
100-FT WINDS........Southwest 15 to 20 knots...becoming west after
                              midnight.
SIG WAVES...........2 to 4 feet / around 1 meter /.
OCNL WAVES..........Around 5 feet / 2 meters /.


.FORECAST DAYS 3 THROUGH 5...

.SUNDAY...Slight chance of thunderstorms. Southwest winds 5 to
10 knots. Waves 2 to 4 feet / around 1 meter /.
.MONDAY...Chance of showers. chance of thunderstorms in the
afternoon. Southwest winds 5 to 10 knots. Waves 2 to 4 feet /
around 1 meter /.
.TUESDAY...North winds 10 to 15 knots. Waves 2 to 4 feet / around
1 meter /.

$$

LMZ761-250300-
MAFOR 2422/
MICHIGAN NORTH 11700 19706 14800 11800 19804 11800 11810. Waves 1
to 3 feet tonight. Waves 1 foot or less Friday.

MICHIGAN SOUTH...SEVERE THUNDERSTORM WATCH IN EFFECT...11610
19619 11600 19609 11600 11700 11800 11100 19104 11800 11810.
Waves 1 to 3 feet subsiding to 1 foot or less tonight. Waves 1
foot or less Friday.

$$

 

Occasional waves will only be displayed when values meet or exceed 5 feet/2 meters.

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