fzus63 kmkx 180254
glflm 
expires:202604180900;;555857

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
953 pm cdt fri apr 17 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...

winds will become gusty and southeasterly through tonight, and 
strong to severe storms will cross the lake through late evening as
a cold front sweeps through the area. winds are expected to 
remain just below gale force. dense fog will continue over the 
lake until the cold front clears late tonight. winds then become 
northwesterly behind the cold front saturday morning. breezy 
northwesterly winds then continue saturday through sunday as the 
low then races northeast toward hudson bay. winds ease monday 
morning as high pressure tracks southeast over the upper great 
lakes.


lmz261-362-364-366-563-565-567-868-180900-
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-
953 pm cdt fri apr 17 2026

sheboygan wi to pentwater mi north...

...dense fog advisory in effect until 4 am cdt saturday...

.rest of tonight...south winds to 30 kt becoming west late. 
patchy dense fog. rain showers with a chance of thunderstorms. 
waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft 
occasionally to 8 ft.
.saturday...northwest winds to 30 kt becoming west 15 to 25 kt.
chance of rain showers in the morning, then chance of snow
showers and slight chance of rain showers in the afternoon. waves
4 to 6 ft occasionally to 8 ft. 
.saturday night...west winds 15 to 25 kt. waves 3 to 5 ft. 
.sunday...northwest winds 15 to 25 kt. waves 3 to 5 ft. 
.sunday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 2 to 4 ft. 
.monday...west winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 2 ft building to 2 to 4 ft. 
.monday night...south winds to 30 kt. waves 6 to 9 ft
occasionally to 12 ft. 
.tuesday...southwest winds to 30 kt diminishing to 10 to 20 kt.
waves 6 to 9 ft occasionally to 12 ft. 
.wednesday...east winds 10 to 15 kt becoming northeast. waves
1 to 3 ft.  

$$

fzus63 kmkx 180254
glflm 
expires:202604180900;;555858

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
953 pm cdt fri apr 17 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...

winds will become gusty and southeasterly through tonight, and 
strong to severe storms will cross the lake through late evening as
a cold front sweeps through the area. winds are expected to 
remain just below gale force. dense fog will continue over the 
lake until the cold front clears late tonight. winds then become 
northwesterly behind the cold front saturday morning. breezy 
northwesterly winds then continue saturday through sunday as the 
low then races northeast toward hudson bay. winds ease monday 
morning as high pressure tracks southeast over the upper great 
lakes.


lmz080-669-671-673-675-777-779-870-872-874-876-878-180900-
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-
953 pm cdt fri apr 17 2026

sheboygan wi to pentwater mi south...

...dense fog advisory in effect until 4 am cdt saturday...

.rest of tonight...south winds to 30 kt veering to west. patchy
dense fog late this evening, then areas of dense fog overnight.
rain showers with a chance of thunderstorms. waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft. 
.saturday...northwest winds to 30 kt becoming west 15 to 25 kt.
slight chance of rain showers in the morning. waves 4 to 6 ft
occasionally to 8 ft. 
.saturday night...west winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.sunday...west winds 10 to 20 kt becoming northwest. waves 3 to
5 ft. 
.sunday night...north winds 10 to 15 kt becoming northeast. waves
2 to 4 ft. 
.monday...east winds 5 to 10 kt becoming southeast 10 to 20 kt in
the afternoon. waves 1 to 2 ft building to 2 to 4 ft. 
.monday night...southeast winds 15 to 25 kt becoming south to
30 kt. waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft
occasionally to 10 ft. 
.tuesday...south winds to 30 kt diminishing to 10 to 20 kt. waves
5 to 8 ft occasionally to 10 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.wednesday...northeast winds 10 to 15 kt. waves 2 to 4 ft
subsiding to 1 to 3 ft.  

$$