fzus63 kmkx 030759
glflm 
expires:202605031515;;935150

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
259 am cdt sun may 3 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...

southerly winds will increase this morning, as low pressure 
around 29.7 inches approaches the lake. the low pressure system 
will drag a cold front southeast over the region later this 
morning into late this afternoon. southwest to south winds may 
approach gale force at times over the southern half but with the 
cooler lake conditions winds should largely stay below gale force.
winds will become westerly for a brief period behind the front
later tonight, before returning to southwesterly and becoming 
breezy again on monday ahead of another stronger low around 29.2 
inches and another cold front. light and more variable winds
should be expected to return to the region through at least the
middle of the week given weak high pressure over the region.


lmz261-362-364-366-563-565-567-868-031515-
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-
259 am cdt sun may 3 2026

sheboygan wi to pentwater mi north...

.today...southwest winds 15 to 25 kt increasing to 30 kt. slight
chance of rain showers this morning, then slight chance of rain
showers and thunderstorms this afternoon. waves 3 to 5 ft
building to 5 to 8 ft occasionally to 10 ft. 
.tonight...southwest winds to 30 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.monday...southwest winds to 30 kt. chance of rain showers in the
afternoon. waves 4 to 6 ft occasionally to 8 ft building to 5 to
8 ft occasionally to 10 ft. 
.monday night...west winds 15 to 25 kt becoming northwest 10 to
15 kt overnight. chance of rain showers. waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft. 
.tuesday...northwest winds 10 to 20 kt becoming west. waves 1 to
3 ft. 
.tuesday night...northwest winds 10 to 15 kt becoming north 5 to
10 kt. waves 1 to 2 ft. 
.wednesday...northwest winds 10 to 15 kt backing to southwest
10 to 20 kt. waves 1 to 2 ft. 
.thursday...northwest winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 030759
glflm 
expires:202605031515;;935151

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
259 am cdt sun may 3 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...

southerly winds will increase this morning, as low pressure 
around 29.7 inches approaches the lake. the low pressure system 
will drag a cold front southeast over the region later this 
morning into late this afternoon. southwest to south winds may 
approach gale force at times over the southern half but with the 
cooler lake conditions winds should largely stay below gale force.
winds will become westerly for a brief period behind the front
later tonight, before returning to southwesterly and becoming 
breezy again on monday ahead of another stronger low around 29.2 
inches and another cold front. light and more variable winds
should be expected to return to the region through at least the
middle of the week given weak high pressure over the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-031515-
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-
259 am cdt sun may 3 2026

sheboygan wi to pentwater mi south...

.today...southwest winds to 30 kt becoming south. chance of rain
showers this morning, then chance of sprinkles this afternoon.
waves 5 to 8 ft occasionally to 10 ft. 
.tonight...southwest winds to 30 kt diminishing to 10 to 15 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.monday...southwest winds 10 to 20 kt becoming south to 30 kt.
waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft. 
.monday night...southwest winds 15 to 25 kt veering to northwest
10 to 15 kt overnight. chance of rain showers. waves 4 to 7 ft
occasionally to 9 ft subsiding to 3 to 5 ft. 
.tuesday...north winds 10 to 15 kt. chance of rain showers. waves
1 to 3 ft. 
.tuesday night...northwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 3 ft. 
.wednesday...north winds 10 to 15 kt. waves 1 to 2 ft. 
.thursday...west winds 10 to 15 kt becoming southwest. waves 1 to
2 ft.  

$$