fzus63 kmkx 301508
glflm 
expires:202512302230;;499259

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
908 am cst tue dec 30 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...

modest west to northwest winds will prevail today and tonight as
strong low pressure remains over quebec and a weak cold front
moves across lake michigan. the strong low over quebec will then
move over eastern hudson bay for wednesday into thursday which 
will aid in moving a stronger cold front across lake michigan. 
thus brisk northwest winds and moderate freezing spray is expected
for wednesday through thursday morning. wind gusts should remain 
just below gale force. modest to brisk west to northwest winds
will then continue the remainder of the week. 



lmz261-362-364-366-563-565-567-868-302230-
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-
908 am cst tue dec 30 2025

sheboygan wi to pentwater mi north...

.rest of today...northwest winds 15 to 25 kt becoming west 15 to 
25 kt. slight chance of snow through mid morning, then snow likely
this afternoon. waves 5 to 8 ft occasionally to 10 ft subsiding 
to 4 to 6 ft occasionally to 8 ft. 
.tonight...northwest winds 15 to 25 kt. chance of snow in the
evening, then slight chance of snow overnight. waves 4 to 7 ft
occasionally to 9 ft. 
.wednesday...northwest winds to 30 kt. chance of snow. freezing
spray in the afternoon. waves 6 to 9 ft occasionally to 12 ft. 
.wednesday night...northwest winds to 30 kt. freezing spray. 
waves 7 to 10 ft occasionally to 13 ft. 
.thursday...northwest winds to 30 kt becoming west. freezing
spray in the morning. waves 4 to 7 ft occasionally to 9 ft
subsiding to 4 to 6 ft occasionally to 8 ft. 
.thursday night...west winds to 25 kt. waves 4 to 6 ft 
occasionally to 8 ft. 
.friday...northwest winds 15 to 25 kt. waves 3 to 5 ft. 
.saturday...northwest winds 10 to 20 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 301508
glflm 
expires:202512302230;;499260

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
908 am cst tue dec 30 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...

modest west to northwest winds will prevail today and tonight as
strong low pressure remains over quebec and a weak cold front
moves across lake michigan. the strong low over quebec will then
move over eastern hudson bay for wednesday into thursday which 
will aid in moving a stronger cold front across lake michigan. 
thus brisk northwest winds and moderate freezing spray is expected
for wednesday through thursday morning. wind gusts should remain 
just below gale force. modest to brisk west to northwest winds
will then continue the remainder of the week. 



lmz080-669-671-673-675-777-779-870-872-874-876-878-302230-
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-
908 am cst tue dec 30 2025

sheboygan wi to pentwater mi south...

.rest of today...northwest winds 10 to 20 kt becoming west.
freezing spray through mid morning. slight chance of snow through
mid morning, then chance of snow this afternoon. waves 7 to 10 ft
occasionally to 13 ft subsiding to 5 to 8 ft occasionally to
10 ft. 
.tonight...west winds 15 to 25 kt becoming northwest. snow likely
in the evening, then slight chance of snow overnight. waves 6 to
9 ft occasionally to 12 ft. 
.wednesday...northwest winds 15 to 25 kt increasing to 30 kt.
chance of snow in the morning, then snow likely in the afternoon.
freezing spray in the afternoon. waves 6 to 9 ft occasionally to
12 ft building to 8 to 11 ft occasionally to 14 ft. 
.wednesday night...northwest winds to 30 kt. chance of snow in
the evening. freezing spray. waves 8 to 11 ft occasionally to
14 ft. 
.thursday...northwest winds 15 to 25 kt becoming west. freezing
spray in the morning. waves 5 to 8 ft occasionally to 10 ft
subsiding to 4 to 7 ft occasionally to 9 ft. 
.thursday night...west winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.friday...northwest winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.saturday...northwest winds 10 to 15 kt. waves 2 to 4 ft.  

$$