fzus63 kmkx 120244
glflm 
expires:202603120915;;049572

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
944 pm cdt wed mar 11 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure of 29.5 inches over southeast ontario/southwest
quebec will continue to pull away to the northeast the remainder 
of tonight. northwest winds gusting to gale force at times over
the next few hours but have largely come below gale force. gale
warning remains in effect until 6z at this time.

lighter winds are likely later tonight into early thursday as 
high pressure of 30.2 inches briefly moves through. strong low 
pressure of 29.0 inches is then expected to move through northern 
wisconsin into northern michigan thursday night into friday. 
increasing southerly winds are expected later thursday into 
thursday night ahead of the low. though the cold lake may dampen 
the gust potential thursday night, southerly gales are still 
likely, especially gioven the precipitation potential over the
lake. there is a better chance for west to northwest gales on 
friday behind the low, with a few gusts to storm force not out of 
the question. a gale watch remains in effect for thursday evening 
through friday evening. 

winds are expected to ease friday night into saturday as high 
pressure of 30.3 inches moves in from the northwest. another 
strong low pressure system is likely to move through the region 
late in the weekend into early next week, with another round of 
gales likely. a colder airmass behind the low may lead to a round
of heavy freezing spray sunday night into monday as the strong
winds and higher waves linger.


lmz261-362-364-366-563-565-567-868-120915-
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-
944 pm cdt wed mar 11 2026

sheboygan wi to pentwater mi north...

...gale warning in effect until 1 am cdt thursday...
...gale watch in effect from thursday evening through late friday
night...

.rest of tonight...northwest gales to 35 kt diminishing to 30 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.thursday...northwest winds 15 to 25 kt backing to southwest
10 to 20 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.thursday night...south winds to 30 kt becoming southwest gales
to 45 kt. snow and rain likely in the evening, then snow with
rain likely overnight. waves 4 to 6 ft occasionally to 8 ft
building to 14 to 18 ft occasionally to 23 ft. 
.friday...southwest gales to 45 kt veering to northwest. chance
of snow and rain in the morning, then chance of snow in the
afternoon. waves 14 to 18 ft occasionally to 23 ft. 
.friday night...northwest gales to 40 kt diminishing to 30 kt
overnight. waves 12 to 16 ft occasionally to 21 ft subsiding to
8 to 11 ft occasionally to 14 ft. 
.saturday...northwest winds 10 to 20 kt becoming southwest 10 to
15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 1 to
3 ft. 
.saturday night...southeast winds 10 to 20 kt increasing to
30 kt. chance of snow. waves 1 to 3 ft building to 5 to 8 ft
occasionally to 10 ft. 
.sunday...east gales to 35 kt becoming northeast gales to 40 kt.
snow likely. waves 8 to 12 ft occasionally to 16 ft building to
14 to 18 ft occasionally to 23 ft. 
.monday...northwest gales to 45 kt diminishing to gales to 40 kt.
heavy freezing spray. snow likely. waves 20 to 25 ft occasionally
to 33 ft subsiding to 15 to 20 ft occasionally to 26 ft.  

$$

fzus63 kmkx 120244
glflm 
expires:202603120915;;049573

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
944 pm cdt wed mar 11 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

low pressure of 29.5 inches over southeast ontario/southwest
quebec will continue to pull away to the northeast the remainder 
of tonight. northwest winds gusting to gale force at times over
the next few hours but have largely come below gale force. gale
warning remains in effect until 6z at this time.

lighter winds are likely later tonight into early thursday as 
high pressure of 30.2 inches briefly moves through. strong low 
pressure of 29.0 inches is then expected to move through northern 
wisconsin into northern michigan thursday night into friday. 
increasing southerly winds are expected later thursday into 
thursday night ahead of the low. though the cold lake may dampen 
the gust potential thursday night, southerly gales are still 
likely, especially gioven the precipitation potential over the
lake. there is a better chance for west to northwest gales on 
friday behind the low, with a few gusts to storm force not out of 
the question. a gale watch remains in effect for thursday evening 
through friday evening. 

winds are expected to ease friday night into saturday as high 
pressure of 30.3 inches moves in from the northwest. another 
strong low pressure system is likely to move through the region 
late in the weekend into early next week, with another round of 
gales likely. a colder airmass behind the low may lead to a round
of heavy freezing spray sunday night into monday as the strong
winds and higher waves linger.


lmz080-669-671-673-675-777-779-870-872-874-876-878-120915-
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-
944 pm cdt wed mar 11 2026

sheboygan wi to pentwater mi south...

...gale warning in effect until 1 am cdt thursday...
...gale watch in effect from thursday evening through late friday
night...

.rest of tonight...northwest winds to 30 kt diminishing to 15 to
25 kt. waves 8 to 12 ft occasionally to 16 ft subsiding to 6 to
9 ft occasionally to 12 ft. 
.thursday...northwest winds 10 to 20 kt backing to south. waves
4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft. 
.thursday night...south winds to 30 kt increasing to gales to
40 kt late in the evening, then increasing to storm force winds
to 50 kt after midnight becoming southwest late. chance of rain.
waves 4 to 6 ft occasionally to 8 ft building to 14 to 18 ft
occasionally to 23 ft. 
.friday...west storm force winds to 50 kt. waves 14 to 18 ft
occasionally to 23 ft. 
.friday night...northwest gales to 40 kt diminishing to 15 to
25 kt overnight. waves 14 to 18 ft occasionally to 23 ft
subsiding to 8 to 12 ft occasionally to 16 ft. 
.saturday...northwest winds 10 to 15 kt veering to southeast 5 to
10 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to
4 ft. 
.saturday night...east winds 10 to 20 kt increasing to 30 kt.
chance of snow. waves 2 to 4 ft building to 6 to 9 ft
occasionally to 12 ft. 
.sunday...east gales to 35 kt increasing to gales to 40 kt. rain
and snow. waves 10 to 14 ft occasionally to 18 ft building to
14 to 18 ft occasionally to 23 ft. 
.monday...northwest gales to 45 kt diminishing to gales to 40 kt.
freezing spray. chance of snow. waves 20 to 25 ft occasionally to
33 ft subsiding to 18 to 23 ft occasionally to 30 ft.  

$$