fzus63 kmkx 091403
glflm 
expires:202603092130;;900894

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt mon mar 9 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...

breezy southwest winds will diminish through this afternoon as 
high pressure around 29.9 inches pushes into the upper great 
lakes. a cold front will gradually shift from north to south 
across lake michigan from late afternoon and through the night. 
modest to brisk northeast winds will develop into tuesday.

low pressure around 29.6 inches then develops in the central great
plains and progresses into northern illinois tuesday night, 
keeping winds northeasterly and gusty, with some potential for 
isolated thunderstorms across the southern third of the lake. low 
pressure ejects to the lower great lakes into wednesday morning, 
turning winds northwesterly. north to northwest gales are possible
wednesday morning through wednesday afternoon. winds gradually 
diminish into thursday morning.

another round of gales is possible thursday night into friday as a
compact clipper low of 29.2 inches crosses northern lake michigan.


lmz261-362-364-366-563-565-567-868-092130-
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-
903 am cdt mon mar 9 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds to 30 kt diminishing to 10 to 20
kt. waves 7 to 10 ft occasionally to 13 ft subsiding to 3 to 5 
ft.
.tonight...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.tuesday...northeast winds 15 to 25 kt increasing to 30 kt. waves
5 to 8 ft occasionally to 10 ft. 
.tuesday night...northeast winds to 30 kt. patchy fog. rain
showers with a wintry mix likely. waves 6 to 9 ft occasionally to
12 ft.
.wednesday...northeast winds to 30 kt becoming north gales to
35 kt. snow and rain showers likely in the morning, then snow
showers likely in the afternoon. waves 8 to 11 ft occasionally to
14 ft building to 8 to 12 ft occasionally to 16 ft. 
.wednesday night...north winds to 30 kt becoming northwest. waves
8 to 12 ft occasionally to 16 ft subsiding to 7 to 10 ft
occasionally to 13 ft. 
.thursday...northwest winds 10 to 20 kt becoming west 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.friday...southwest gales to 40 kt becoming northwest. chance of
snow and rain. waves 15 to 20 ft occasionally to 26 ft subsiding
to 12 to 16 ft occasionally to 21 ft.  

$$

fzus63 kmkx 091403
glflm 
expires:202603092130;;900895

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt mon mar 9 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...

breezy southwest winds will diminish through this afternoon as 
high pressure around 29.9 inches pushes into the upper great 
lakes. a cold front will gradually shift from north to south 
across lake michigan from late afternoon and through the night. 
modest to brisk northeast winds will develop into tuesday.

low pressure around 29.6 inches then develops in the central great
plains and progresses into northern illinois tuesday night, 
keeping winds northeasterly and gusty, with some potential for 
isolated thunderstorms across the southern third of the lake. low 
pressure ejects to the lower great lakes into wednesday morning, 
turning winds northwesterly. north to northwest gales are possible
wednesday morning through wednesday afternoon. winds gradually 
diminish into thursday morning.

another round of gales is possible thursday night into friday as a
compact clipper low of 29.2 inches crosses northern lake michigan.


lmz080-669-671-673-675-777-779-870-872-874-876-878-092130-
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-
903 am cdt mon mar 9 2026

sheboygan wi to pentwater mi south...

.rest of today...southwest winds to 30 kt becoming south 10 to
20 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.tonight...southeast winds 10 to 15 kt increasing to 10 to 20 kt.
patchy fog overnight. waves 3 to 5 ft. 
.tuesday...northwest winds 10 to 20 kt becoming north 15 to
25 kt. patchy fog. waves 4 to 7 ft occasionally to 9 ft building
to 5 to 8 ft occasionally to 10 ft. 
.tuesday night...northeast winds to 30 kt. areas of fog. rain
showers with a chance of thunderstorms. waves 6 to 9 ft
occasionally to 12 ft. 
.wednesday...north winds to 30 kt increasing to gales to 35 kt.
rain showers likely in the morning, then chance of rain and snow
showers in the afternoon. waves 8 to 11 ft occasionally to 14 ft
building to 10 to 14 ft occasionally to 18 ft. 
.wednesday night...northwest gales to 35 kt diminishing to 30 kt.
waves 10 to 14 ft occasionally to 18 ft subsiding to 8 to 12 ft
occasionally to 16 ft. 
.thursday...northwest winds 15 to 25 kt backing to southwest.
waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. 
.friday...west gales to 45 kt becoming northwest gales to 40 kt.
chance of rain and snow. waves 14 to 18 ft occasionally to 23 ft.
 

$$