fzus63 kmkx 310826
glflm 
expires:202603311515;;581392

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
326 am cdt tue mar 31 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...

a frontal boundary across the central part of the lake is dividing
east to northeast winds in the north and southerly winds in the
south early this morning. periods of showers and thunderstorms
will continue as the front gradually sags southward. the front 
will eventually drop south of the lake by late this afternoon or 
early evening, with breezy northerly winds expected across the 
lake this evening into wednesday. breezy easterly winds are then 
expected wednesday night and thursday between high pressure of 
30.7 inches east of james bay in canada and low pressure of 29.4 
inches lifting from the central plains into wisconsin. gusts could
approach gale force during this period, particularly across 
northern portions of the lake. 


lmz261-362-364-366-563-565-567-868-311515-
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-
326 am cdt tue mar 31 2026

sheboygan wi to pentwater mi north...

.today...northeast winds to 30 kt becoming north 15 to 25 kt.
chance of rain showers this morning, then chance of rain showers
and thunderstorms this afternoon. waves 2 to 4 ft.
.tonight...north winds to 30 kt diminishing to 15 to 25 kt. waves
3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
.wednesday...north winds 15 to 25 kt becoming northeast to 30 kt.
waves 5 to 8 ft occasionally to 10 ft. 
.wednesday night...northeast winds to 30 kt becoming east. chance
of snow and rain in the evening, then rain with a chance of snow
overnight. waves 6 to 9 ft occasionally to 12 ft. 
.thursday...east gales to 35 kt. rain, snow and freezing rain in
the morning, then rain and freezing rain in the afternoon. waves
7 to 10 ft occasionally to 13 ft. 
.thursday night...southeast gales to 35 kt veering to west to
30 kt. rain. waves 7 to 10 ft occasionally to 13 ft. 
.friday...west winds 15 to 25 kt becoming north 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft. 
.saturday...east winds to 30 kt becoming northeast 15 to 25 kt.
rain and freezing rain likely. waves 4 to 6 ft occasionally to
8 ft building to 4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmkx 310826
glflm 
expires:202603311515;;581393

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
326 am cdt tue mar 31 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...

a frontal boundary across the central part of the lake is dividing
east to northeast winds in the north and southerly winds in the
south early this morning. periods of showers and thunderstorms
will continue as the front gradually sags southward. the front 
will eventually drop south of the lake by late this afternoon or 
early evening, with breezy northerly winds expected across the 
lake this evening into wednesday. breezy easterly winds are then 
expected wednesday night and thursday between high pressure of 
30.7 inches east of james bay in canada and low pressure of 29.4 
inches lifting from the central plains into wisconsin. gusts could
approach gale force during this period, particularly across 
northern portions of the lake. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-311515-
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-
326 am cdt tue mar 31 2026

sheboygan wi to pentwater mi south...

.today...southwest winds to 30 kt veering to west 15 to 25 kt.
chance of rain showers and thunderstorms this morning, then rain
showers with a chance of thunderstorms this afternoon. waves 4 to
6 ft occasionally to 8 ft. 
.tonight...north winds to 30 kt diminishing to 15 to 25 kt.
chance of rain showers and slight chance of thunderstorms in the
evening, then chance of rain showers overnight. waves 4 to 6 ft
occasionally to 8 ft building to 5 to 8 ft occasionally to 10 ft.
.wednesday...north winds to 30 kt becoming northeast. chance of
rain. waves 6 to 9 ft occasionally to 12 ft. 
.wednesday night...northeast winds to 30 kt becoming east. rain
likely in the evening, then rain overnight. waves 6 to 9 ft
occasionally to 12 ft. 
.thursday...east winds to 30 kt becoming southeast. rain in the
morning, then rain with a chance of thunderstorms in the
afternoon. waves 6 to 9 ft occasionally to 12 ft. 
.thursday night...south winds to 30 kt becoming southwest 15 to
25 kt. rain with a chance of thunderstorms. waves 7 to 10 ft
occasionally to 13 ft. 
.friday...northwest winds 10 to 20 kt becoming north. waves 4 to
7 ft occasionally to 9 ft subsiding to 2 to 4 ft. 
.saturday...southeast winds 15 to 25 kt becoming southwest. rain.
waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft
occasionally to 10 ft.  

$$