fzus63 kmkx 231604
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open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1004 am cst mon feb 23 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...

brisk northerly winds will gradually diminish into this evening 
as high pressure of 30.7 inches over minnesota and iowa moves 
into wisconsin this afternoon and across lake michigan tonight. 
light and variable winds are expected tonight as the high passes. 

southerly gales are then expected to develop late tuesday
morning and last through the afternoon for all of lake michigan. 
a gale warning has been issued for this time period. the southerly
gales will develop as strengthening low pressure around 29.3 
inches tracks from northern minnesota on monday through the 
northern great lakes monday night. 

winds will shift more west northwest behind the low and 
associated cold front for tuesday night and wednesday. winds will
remain brisk but under gale force.


lmz080-366-565-567-669-671-673-675-777-779-868-870-872-874-876-
878-232215-
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-
1004 am cst mon feb 23 2026

sturgeon bay wi to point betsie mi south...

...gale warning in effect from tuesday morning through tuesday
afternoon...

.rest of today...north winds 20 to 30 kt diminishing to 15 to 25 
kt. freezing spray. chance of flurries and slight chance of light 
freezing rain. waves 10 to 14 ft occasionally to 18 ft subsiding 
to 8 to 12 ft occasionally to 16 ft. 
.tonight...north winds 10 to 20 kt becoming northwest 10 to 15 kt
late in the evening, then becoming west after midnight becoming 
southwest 10 to 20 kt late. waves 6 to 9 ft occasionally to 12 ft 
subsiding to 2 to 4 ft. 
.tuesday...south winds to 30 kt becoming southwest gales to
35 kt. chance of snow in the afternoon. waves 4 to 7 ft
occasionally to 9 ft building to 10 to 14 ft occasionally to
18 ft. 
.tuesday night...west winds to 30 kt becoming northwest. freezing
spray overnight. waves 8 to 12 ft occasionally to 16 ft. 
.wednesday...northwest winds to 30 kt becoming west 15 to 25 kt.
freezing spray in the morning. waves 8 to 12 ft occasionally to
16 ft subsiding to 6 to 9 ft occasionally to 12 ft. 
.wednesday night...northwest winds 10 to 15 kt veering to
northeast 10 to 20 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.thursday...northeast winds 10 to 20 kt becoming north 10 to
15 kt. waves 1 to 3 ft. 
.friday...southwest winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft building to 8 to 11 ft occasionally to 14 ft.  

$$