fzus63 kmkx 121503
glflm 
expires:202601122215;;227841

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cst mon jan 12 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...

29.4 inch low pressure is centered over the eastern hudson bay 
this afternoon, resulting in generally west-southwest winds across
the open waters of lake michigan. high pressure of 29.9 inches 
will cross the waters this evening, bringing a decrease in winds 
through the first half of the overnight hours. low pressure of
29.3 inches will develop near the ontario-manitoba border late 
tonight, deepening to near 29.2 inches as it approaches the 
ontario-quebec border tuesday evening. development and 
progression of the low will result in increasing west-southwest 
winds across lake michigan early tuesday morning through tuesday 
afternoon. gusts between 25-30 knots are possible, though gales 
are not expected at this time.

an arctic cold front will quickly move south across lake michigan 
late tuesday night through early wednesday morning, bringing a gusty 
north wind shift over the waters. gale force gusts appear possible
during this time frame, with the need for headlines being assessed
in coming forecasts. areas of light to moderate freezing spray 
will accompany the passing front wednesday morning through 
wednesday evening. 


lmz261-362-364-366-563-565-567-868-122215-
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-
903 am cst mon jan 12 2026

sheboygan wi to pentwater mi north...

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

$$

fzus63 kmkx 121503
glflm 
expires:202601122215;;227842

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cst mon jan 12 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...

29.4 inch low pressure is centered over the eastern hudson bay 
this afternoon, resulting in generally west-southwest winds across
the open waters of lake michigan. high pressure of 29.9 inches 
will cross the waters this evening, bringing a decrease in winds 
through the first half of the overnight hours. low pressure of
29.3 inches will develop near the ontario-manitoba border late 
tonight, deepening to near 29.2 inches as it approaches the 
ontario-quebec border tuesday evening. development and 
progression of the low will result in increasing west-southwest 
winds across lake michigan early tuesday morning through tuesday 
afternoon. gusts between 25-30 knots are possible, though gales 
are not expected at this time.

an arctic cold front will quickly move south across lake michigan 
late tuesday night through early wednesday morning, bringing a gusty 
north wind shift over the waters. gale force gusts appear possible
during this time frame, with the need for headlines being assessed
in coming forecasts. areas of light to moderate freezing spray 
will accompany the passing front wednesday morning through 
wednesday evening. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-122215-
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-
903 am cst mon jan 12 2026

sheboygan wi to pentwater mi south...

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

$$