National Weather Service United States Department of Commerce

FZUS61 KMKX 210805
GLFLMT

Experimental Tabular Open Lake Forecast FOR Lake Michigan
National Weather Service Milwaukee/Sullivan WI
305 AM CDT Wed May 21 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...

LMZ261-362-364-366-563-565-567-868-211500-
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 AM CDT Wed May 21 2025

.TODAY...
WEATHER.............Cloudy with showers likely. cloudy. cloudy with
                              showers, then mostly cloudy with showers likely
                              early in the afternoon.
SFC WINDS...........Northeast 15 to 20 knots.
100-FT WINDS........Northeast 20 to 25 knots.
SIG WAVES...........5 to 7 feet / around 2 meters /.
OCNL WAVES..........Around 9 feet / 3 meters /.

.TONIGHT...
WEATHER.............Mostly cloudy with chance of showers. mostly
                              cloudy. mostly cloudy with a slight chance of
                              showers.
SFC WINDS...........North 15 to 20 knots.
100-FT WINDS........North 20 to 25 knots.
SIG WAVES...........4 to 6 feet / 1-2 meters /...subsiding to 3 to
                              5 feet / 1-2 meters / in the late evening and
                              overnight.
OCNL WAVES..........Around 8 feet / 2 meters / early in the
                              evening.

.THURSDAY...
WEATHER.............Mostly sunny.
SFC WINDS...........North 15 to 20 knots.
100-FT WINDS........North 20 to 25 knots.
SIG WAVES...........4 to 6 feet / 1-2 meters /.
OCNL WAVES..........Around 8 feet / 2 meters /.

.THURSDAY NIGHT...
WEATHER.............Mostly cloudy. mostly cloudy in the late
                              evening and overnight.
SFC WINDS...........Northwest 15 to 20 knots.
100-FT WINDS........Northwest 20 to 25 knots.
SIG WAVES...........3 to 5 feet / 1-2 meters /.
OCNL WAVES..........Around 6 feet / 2 meters /.


.FORECAST DAYS 3 THROUGH 5...

.FRIDAY...North winds 10 to 15 knots. Waves 3 to 5 feet /
1-2 meters /.
.SATURDAY...North winds 5 to 10 knots. Waves 2 to 4 feet / around
1 meter /.
.SUNDAY...North winds 10 to 15 knots. Waves 2 to 4 feet / around
1 meter /.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-211500-
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
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 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 Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 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 AM CDT Wed May 21 2025

.TODAY...
WEATHER.............Showers, then showers likely early in the
                              afternoon.
SFC WINDS...........Northeast 15 to 20 knots.
100-FT WINDS........Northeast 20 to 25 knots.
SIG WAVES...........5 to 7 feet / around 2 meters /.
OCNL WAVES..........Around 9 feet / 3 meters /.

.TONIGHT...
WEATHER.............Showers likely.
SFC WINDS...........North 15 to 20 knots.
100-FT WINDS........North 20 to 25 knots.
SIG WAVES...........4 to 6 feet / 1-2 meters /.
OCNL WAVES..........Around 8 feet / 2 meters /.

.THURSDAY...
WEATHER.............Mostly cloudy with chance of showers. mostly
                              cloudy until late afternoon. partly sunny.
SFC WINDS...........North 20 to 25 knots.
100-FT WINDS........North to 30 knots.
SIG WAVES...........5 to 7 feet / around 2 meters /.
OCNL WAVES..........Around 9 feet / 3 meters /.

.THURSDAY NIGHT...
WEATHER.............Partly cloudy.
SFC WINDS...........North 15 to 20 knots.
100-FT WINDS........North 20 to 25 knots.
SIG WAVES...........5 to 7 feet / around 2 meters /...subsiding to
                              3 to 5 feet / 1-2 meters / after midnight.
OCNL WAVES..........Around 9 feet / 3 meters / until early morning.


.FORECAST DAYS 3 THROUGH 5...

.FRIDAY...North winds 10 to 15 knots. Waves 3 to 5 feet /
1-2 meters /.
.SATURDAY...North winds 5 to 10 knots. Waves 2 to 4 feet / around
1 meter /.
.SUNDAY...North winds 10 to 15 knots. Waves 2 to 4 feet / around
1 meter /.

$$

LMZ761-211500-
MAFOR 2110/
MICHIGAN NORTH 12136 12146 11136 13820. Waves 3 to 6 feet today.
Waves 3 to 5 feet subsiding to 1 to 3 feet tonight.

MICHIGAN SOUTH 13136 12836 11826 12836. Waves 3 to 6 feet today.
Waves 3 to 5 feet subsiding to 2 to 4 feet tonight.

$$

 

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

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