fzus63 kmkx 270209
glflm 
expires:202604270915;;585351

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
909 pm cdt sun apr 26 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 29.4 inches is expected to lift from northeast 
kansas tonight to lake superior by later monday night while
deepening to 29.3 inches. look for increasing easterly winds
tonight and southeast winds through monday night as the low 
approaches. the cooler lake temps should dampen the threat for 
gales across the lake. winds will shift to the west early tuesday
morning with the cold frontal passage, and gusty westerly winds 
are expected through tuesday afternoon behind the departing low.

high pressure around 30.1 inches will set up over the upper
midwest and upper great lakes tuesday through friday. 


lmz261-362-364-366-563-565-567-868-270915-
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-
909 pm cdt sun apr 26 2026

sheboygan wi to pentwater mi north...

.rest of tonight...east winds 10 to 15 kt becoming southeast
10 to 20 kt. waves 1 to 3 ft building to 2 to 4 ft. 
.monday...southeast winds 15 to 25 kt increasing to 30 kt. a few
gale force gusts up to 35 kt possible. chance of rain showers and
slight chance of thunderstorms in the afternoon. waves 3 to 5 ft 
building to 6 to 9 ft occasionally to 12 ft. 
.monday night...southeast winds to 30 kt becoming south. rain 
showers with a chance of thunderstorms. waves 8 to 11 ft 
occasionally to 14 ft.
.tuesday...southwest winds to 30 kt becoming west. chance of rain
showers in the morning. waves 6 to 9 ft occasionally to 12 ft
subsiding to 4 to 7 ft occasionally to 9 ft. 
.tuesday night...northwest winds 10 to 20 kt becoming north 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.wednesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.wednesday night...north winds 10 to 15 kt. waves 1 to 2 ft.
.thursday...north winds 10 to 15 kt becoming west 10 to 20 kt.
waves 1 to 2 ft. 
.friday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 270209
glflm 
expires:202604270915;;585352

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
909 pm cdt sun apr 26 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 29.4 inches is expected to lift from northeast 
kansas tonight to lake superior by later monday night while
deepening to 29.3 inches. look for increasing easterly winds
tonight and southeast winds through monday night as the low 
approaches. the cooler lake temps should dampen the threat for 
gales across the lake. winds will shift to the west early tuesday
morning with the cold frontal passage, and gusty westerly winds 
are expected through tuesday afternoon behind the departing low.

high pressure around 30.1 inches will set up over the upper
midwest and upper great lakes tuesday through friday. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-270915-
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-
909 pm cdt sun apr 26 2026

sheboygan wi to pentwater mi south...

.rest of tonight...east winds 10 to 20 kt becoming southeast
15 to 25 kt. waves 2 to 4 ft building to 3 to 5 ft. 
.monday...southeast winds 15 to 25 kt increasing to 30 kt. a few
gale force gusts up to 35 kt possible. chance of rain showers and
slight chance of thunderstorms in the morning, then chance of 
rain showers and thunderstorms in the afternoon. waves 4 to 6 ft 
occasionally to 8 ft building to 6 to 9 ft occasionally to 12 ft. 
.monday night...southeast winds to 30 kt becoming southwest late.
rain showers with a chance of thunderstorms. waves 7 to 10 ft 
occasionally to 13 ft. 
.tuesday...west winds to 30 kt diminishing to 15 to 25 kt. waves
6 to 9 ft occasionally to 12 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.tuesday night...northwest winds 10 to 15 kt becoming north.
waves 2 to 4 ft subsiding to 1 to 2 ft. 
.wednesday...north winds 10 to 20 kt. waves 2 to 4 ft. 
.wednesday night...north winds 10 to 20 kt diminishing to 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.thursday...north winds 5 to 10 kt becoming northeast 10 to
20 kt. waves 1 to 2 ft. 
.friday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 2 to 4 ft.  

$$