fzus63 kmkx 160301
glflm 
expires:202512161030;;657321

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
901 pm cst mon dec 15 2025

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...

west to southwest winds will continue to diminish overnight, as 
weak low pressure around 29.9 inches over lake superior moves 
northeast. light south to southwest winds are expected tuesday 
morning, before increasing ahead of an approaching strong low 
pressure around 29.0 inches. 

this low will move east from central saskatchewan into northern 
ontario tuesday afternoon through tuesday night. southwest winds 
will increase across the lake, with gales likely across the 
northern third of the lake, as the low passes to the north. a gale
warning is in effect for the northern third of the lake during 
this time. 

a cold front will cross the lake tuesday night, with winds 
veering to west behind the front. west to northwest winds will be
short lived, and will diminish behind the front tuesday night. 
another strong low pressure system is expected to track eastward 
along the canadian border wednesday into thursday. winds will turn
south and remain light wednesday morning before increasing. 

strong south winds will develop ahead of the low wednesday night.
strong winds will veer thursday morning, as another cold front 
crosses the lake and becomes west northwest. south gales wednesday
night and west northwest gales thursday afternoon through 
thursday night are likely.


lmz366-565-567-868-161030-
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 pentwater to manistee mi 5 nm offshore to mid
lake-
901 pm cst mon dec 15 2025

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

.rest of tonight...west winds 5 to 10 kt becoming southwest after
midnight, then increasing to 10 to 20 kt late. waves 3 to 5 ft
subsiding to 1 to 3 ft. 
.tuesday...southwest winds 15 to 25 kt increasing to 30 kt. 
slight chance of rain showers in the afternoon. waves 3 to 5 ft 
building to 10 to 14 ft occasionally to 18 ft. 
.tuesday night...southwest winds to 30 kt becoming west after
midnight, then diminishing to 15 to 25 kt late. waves 10 to 14 ft
occasionally to 18 ft subsiding to 6 to 9 ft occasionally to
12 ft. 
.wednesday...northwest winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 5 to 8 ft occasionally to 10 ft subsiding to 2 to
4 ft. 
.wednesday night...south gales to 40 kt. chance of rain showers
overnight. waves 8 to 12 ft occasionally to 16 ft building to
14 to 18 ft occasionally to 23 ft. 
.thursday...south gales to 40 kt becoming west. rain showers in
the morning, then rain showers likely in the afternoon. waves
14 to 18 ft occasionally to 23 ft subsiding to 10 to 14 ft
occasionally to 18 ft. 
.thursday night...northwest gales to 40 kt diminishing to gales
to 35 kt. freezing spray. chance of snow. waves 10 to 14 ft
occasionally to 18 ft. 
.friday...northwest winds to 30 kt becoming west 10 to 20 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.saturday...southwest winds to 30 kt diminishing to 15 to 25 kt.
waves 10 to 14 ft occasionally to 18 ft subsiding to 7 to 10 ft
occasionally to 13 ft.  

$$

fzus63 kmkx 160301
glflm 
expires:202512161030;;657322

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
901 pm cst mon dec 15 2025

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...

west to southwest winds will continue to diminish overnight, as 
weak low pressure around 29.9 inches over lake superior moves 
northeast. light south to southwest winds are expected tuesday 
morning, before increasing ahead of an approaching strong low 
pressure around 29.0 inches. 

this low will move east from central saskatchewan into northern 
ontario tuesday afternoon through tuesday night. southwest winds 
will increase across the lake, with gales likely across the 
northern third of the lake, as the low passes to the north. a gale
warning is in effect for the northern third of the lake during 
this time. 

a cold front will cross the lake tuesday night, with winds 
veering to west behind the front. west to northwest winds will be
short lived, and will diminish behind the front tuesday night. 
another strong low pressure system is expected to track eastward 
along the canadian border wednesday into thursday. winds will turn
south and remain light wednesday morning before increasing. 

strong south winds will develop ahead of the low wednesday night.
strong winds will veer thursday morning, as another cold front 
crosses the lake and becomes west northwest. south gales wednesday
night and west northwest gales thursday afternoon through 
thursday night are likely.


lmz080-669-671-673-675-777-779-870-872-874-876-878-161030-
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-
901 pm cst mon dec 15 2025

sheboygan wi to pentwater mi south...

.rest of tonight...west winds 10 to 15 kt becoming southwest.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.tuesday...south winds 10 to 20 kt becoming southwest to 30 kt.
waves 3 to 5 ft building to 8 to 11 ft occasionally to 14 ft. 
.tuesday night...southwest winds to 30 kt becoming west. waves 10
to 14 ft occasionally to 18 ft subsiding to 7 to 10 ft 
occasionally to 13 ft. 
.wednesday...northwest winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.wednesday night...south gales to 35 kt increasing to gales to
40 kt. chance of rain showers overnight. waves 8 to 12 ft
occasionally to 16 ft building to 12 to 16 ft occasionally to
21 ft. 
.thursday...south gales to 35 kt becoming west gales to 40 kt.
rain showers in the morning, then rain showers likely in the
afternoon. waves 12 to 16 ft occasionally to 21 ft. 
.thursday night...west gales to 40 kt becoming northwest.
freezing spray. chance of snow and rain. waves 12 to 16 ft
occasionally to 21 ft. 
.friday...northwest winds to 30 kt becoming west 10 to 20 kt.
waves 10 to 14 ft occasionally to 18 ft subsiding to 5 to 8 ft
occasionally to 10 ft. 
.saturday...southwest winds to 30 kt. waves 10 to 14 ft
occasionally to 18 ft subsiding to 8 to 11 ft occasionally to
14 ft.  

$$