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open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
842 am cst tue feb 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...

east to southeast winds will increase today into tonight as 
strong, compact low pressure of 29.1 inches approaches from the
dakotas. high-end, easterly gales are expected from midnight into
wednesday afternoon over the northern third of the lake, where a 
gale warning remains in effect. the warmer airmass over the chilly
lake waters should limit the mixing down of higher gusts 
elsewhere across the lake.

winds will ease later wednesday into thursday and become southerly
as that low occludes and weakens to 29.5 inches over northern
minnesota. winds will increase thursday night into friday night 
as another strong low pressure system around 29.2 inches tracks
from iowa into central wisconsin. that low will cross northern or
central lake michigan friday morning and gradually weaken through
saturday. gusty northerly winds are expected sunday into monday.


lmz080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-172215-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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 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-
842 am cst tue feb 17 2026

sturgeon bay wi to point betsie mi south...

.rest of today...east winds 10 to 20 kt. waves 2 to 4 ft. 
.tonight...east winds 15 to 25 kt becoming south to 30 kt. rain
likely in the evening, then rain overnight. waves 3 to 5 ft
building to 6 to 9 ft occasionally to 12 ft. 
.wednesday...south winds to 30 kt becoming southwest 15 to 25 kt.
chance of rain in the morning. waves 6 to 9 ft occasionally to
12 ft subsiding to 4 to 7 ft occasionally to 9 ft. 
.wednesday night...southwest winds 10 to 15 kt becoming south.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.thursday...southeast winds 10 to 15 kt becoming east 10 to
20 kt. chance of rain in the afternoon. waves 1 to 3 ft building
to 2 to 4 ft. 
.thursday night...east winds 15 to 25 kt becoming southeast to
30 kt. rain likely. waves 4 to 7 ft occasionally to 9 ft building
to 5 to 8 ft occasionally to 10 ft. 
.friday...southwest winds to 30 kt becoming west. chance of rain
and snow. waves 8 to 11 ft occasionally to 14 ft. 
.saturday...northwest winds 15 to 25 kt. waves 7 to 10 ft
occasionally to 13 ft.  

$$