fzus63 kmkx 120227
glflm 
expires:202604120930;;219930

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
927 pm cdt sat apr 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 around 29.4 inches will track across the northern 
great plains to northeast minnesota from tonight into sunday 
evening, then develop toward hudson bay late sunday night. this 
will bring breezy south winds to all of lake michigan, but with 
the potential for gales over the north half late sunday afternoon 
into early monday morning. a gale watch is now in effect. 

winds will weaken later monday morning as the low quickly moves 
away and the trailing cold front stalls over northern lake 
michigan. then, passing low pressure systems along the stalled 
front will lead to intermittent showers and thunderstorms through 
the middle of the week. areas of dense fog will likely occur at
times due to a relatively mild and humid airmass over the cold
waters. 



lmz261-362-364-366-563-565-120930-
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-
927 pm cdt sat apr 11 2026

two rivers wi to manistee mi north...

...gale watch in effect from sunday afternoon through late sunday
night...

.rest of tonight...southeast winds 10 to 15 kt increasing to
30 kt. scattered rain showers late this evening, then rain
showers and slight chance of thunderstorms overnight. patchy fog
overnight. waves 2 to 4 ft building to 4 to 6 ft occasionally to
8 ft. 
.sunday...southeast winds to 30 kt becoming south. patchy fog in
the morning, then areas of fog in the afternoon. rain showers
with a chance of thunderstorms in the morning, then scattered
rain showers and slight chance of thunderstorms in the afternoon.
waves 5 to 8 ft occasionally to 10 ft. 
.sunday night...south gales to 35 kt becoming southwest to 30 kt.
scattered rain showers in the evening. areas of fog. waves 7 to
10 ft occasionally to 13 ft subsiding to 6 to 9 ft occasionally
to 12 ft. 
.monday...southwest winds 15 to 25 kt diminishing to 10 to 20 kt.
areas of dense fog in the morning. waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft. 
.monday night...east winds 10 to 15 kt becoming southeast 10 to
20 kt. chance of rain showers and thunderstorms in the evening,
then rain showers with a chance of thunderstorms overnight. waves
2 to 4 ft building to 3 to 5 ft. 
.tuesday...southwest winds 10 to 20 kt becoming south 10 to
15 kt. chance of rain showers and thunderstorms in the morning,
then chance of rain showers in the afternoon. waves 3 to 5 ft. 
.tuesday night...east winds 10 to 15 kt increasing to 10 to
20 kt. rain showers likely. waves 2 to 4 ft building to 4 to 6 ft
occasionally to 8 ft. 
.wednesday...south winds 15 to 25 kt diminishing to 10 to 20 kt.
chance of rain showers. waves 4 to 7 ft occasionally to 9 ft. 
.thursday...northeast winds 10 to 15 kt veering to southeast.
waves 2 to 4 ft.  

$$

fzus63 kmkx 120227
glflm 
expires:202604120930;;219931

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
927 pm cdt sat apr 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 around 29.4 inches will track across the northern 
great plains to northeast minnesota from tonight into sunday 
evening, then develop toward hudson bay late sunday night. this 
will bring breezy south winds to all of lake michigan, but with 
the potential for gales over the north half late sunday afternoon 
into early monday morning. a gale watch is now in effect. 

winds will weaken later monday morning as the low quickly moves 
away and the trailing cold front stalls over northern lake 
michigan. then, passing low pressure systems along the stalled 
front will lead to intermittent showers and thunderstorms through 
the middle of the week. areas of dense fog will likely occur at
times due to a relatively mild and humid airmass over the cold
waters. 



lmz080-567-669-671-673-675-777-779-868-870-872-874-876-878-120930-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from two rivers to sheboygan wi 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 pentwater to manistee mi 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-
927 pm cdt sat apr 11 2026

two rivers wi to manistee mi south...

.rest of tonight...southeast winds 10 to 20 kt increasing to
30 kt. isolated rain showers late this evening, then scattered
rain showers and slight chance of thunderstorms overnight. waves
1 to 3 ft building to 4 to 7 ft occasionally to 9 ft. 
.sunday...south winds to 30 kt. patchy fog. scattered rain
showers with a chance of thunderstorms in the morning, then
scattered rain showers and slight chance of thunderstorms in the
afternoon. waves 5 to 8 ft occasionally to 10 ft. 
.sunday night...southwest winds to 30 kt diminishing to 15 to
25 kt. rain showers with a chance of thunderstorms in the
evening. patchy fog. waves 6 to 9 ft occasionally to 12 ft. 
.monday...southwest winds 15 to 25 kt becoming south 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.monday night...south winds 10 to 20 kt increasing to 15 to
25 kt. rain showers likely with a chance of thunderstorms in the
evening, then chance of rain showers and thunderstorms overnight.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.tuesday...southwest winds 15 to 25 kt becoming south 10 to
20 kt. rain showers likely in the afternoon. waves 4 to 6 ft
occasionally to 8 ft. 
.tuesday night...south winds 10 to 20 kt becoming southwest 15 to
25 kt. rain showers with a chance of thunderstorms. waves 3 to
5 ft building to 4 to 7 ft occasionally to 9 ft.
.wednesday...southwest winds 15 to 25 kt becoming south. chance
of rain showers. waves 5 to 8 ft occasionally to 10 ft. 
.thursday...southwest winds 10 to 20 kt diminishing to 10 to
15 kt. chance of rain showers. waves 3 to 5 ft.  

$$