fzus63 kmkx 122032
glflm 
expires:202601130430;;240244

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
232 pm 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 are anticipated 
from the late morning hours through early evening, with highest 
gusts over the southern two thirds of the open waters. a gale watch 
has been issued between 3 am and 9 pm cst wednesday over northern
lake michigan, and between 6 am cst wednesday and 12 am cst 
thursday over southern lake michigan. will continue to monitor 
trends & determine the need for gale warnings over the next 12-24 
hours. areas of light to moderate freezing spray will accompany 
the passing front wednesday morning through wednesday evening. 


lmz261-362-364-366-563-565-567-868-130430-
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-
232 pm cst mon jan 12 2026

sheboygan wi to pentwater mi north...

...gale watch in effect from late tuesday night through wednesday
evening...

.tonight...west winds 10 to 20 kt becoming south 15 to 25 kt.
chance of rain overnight. waves 2 to 4 ft building to 3 to 5 ft. 
.tuesday...southwest winds to 30 kt becoming west 15 to 25 kt.
snow with a chance of rain in the morning, then chance of rain
and snow likely in the afternoon. waves 5 to 8 ft occasionally to
10 ft. 
.tuesday night...west winds 15 to 25 kt increasing to 30 kt late
in the evening, then becoming northwest gales to 35 kt after
midnight becoming north late. freezing spray overnight. waves
4 to 7 ft occasionally to 9 ft building to 8 to 11 ft
occasionally to 14 ft. 
.wednesday...north gales to 40 kt. freezing spray. chance of
snow. waves 14 to 18 ft occasionally to 23 ft. 
.wednesday night...north gales to 40 kt diminishing to 30 kt
overnight. chance of snow in the evening. freezing spray. waves
12 to 16 ft occasionally to 21 ft subsiding to 10 to 14 ft
occasionally to 18 ft. 
.thursday...north winds 15 to 25 kt becoming west 10 to 20 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 3 to 5 ft. 
.thursday night...southwest winds 10 to 20 kt. chance of snow.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft.
.friday...southwest winds 10 to 20 kt. chance of snow. waves 4 to
7 ft occasionally to 9 ft. 
.saturday...northwest winds 10 to 20 kt increasing to 15 to
25 kt. chance of snow. waves 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 122032
glflm 
expires:202601130430;;240245

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
232 pm 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 are anticipated 
from the late morning hours through early evening, with highest 
gusts over the southern two thirds of the open waters. a gale watch 
has been issued between 3 am and 9 pm cst wednesday over northern
lake michigan, and between 6 am cst wednesday and 12 am cst 
thursday over southern lake michigan. will continue to monitor 
trends & determine the need for gale warnings over the next 12-24 
hours. areas of light to moderate freezing spray will accompany 
the passing front wednesday morning through wednesday evening. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-130430-
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-
232 pm cst mon jan 12 2026

sheboygan wi to pentwater mi south...

...gale watch in effect from wednesday morning through wednesday
evening...

.tonight...southwest winds 10 to 20 kt increasing to 30 kt.
chance of sprinkles and slight chance of rain overnight. waves
3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. 
.tuesday...southwest winds to 30 kt becoming west 15 to 25 kt.
slight chance of rain. waves 6 to 9 ft occasionally to 12 ft. 
.tuesday night...west winds 15 to 25 kt becoming northwest gales
to 35 kt. waves 5 to 8 ft occasionally to 10 ft building to 8 to
11 ft occasionally to 14 ft. 
.wednesday...north gales to 40 kt increasing to gales to 45 kt.
freezing spray. snow likely. waves 15 to 20 ft occasionally to
26 ft. 
.wednesday night...north gales to 45 kt diminishing to gales to
35 kt overnight. freezing spray. chance of snow. waves 14 to
18 ft occasionally to 23 ft subsiding to 12 to 16 ft occasionally
to 21 ft. 
.thursday...northwest winds to 30 kt becoming west 10 to 20 kt in
the afternoon. freezing spray in the morning. waves 8 to 12 ft
occasionally to 16 ft subsiding to 5 to 8 ft occasionally to
10 ft. 
.thursday night...southwest winds 15 to 25 kt. chance of snow.
waves 4 to 6 ft occasionally to 8 ft building to 5 to 8 ft
occasionally to 10 ft. 
.friday...southwest winds 15 to 25 kt becoming west. snow likely.
waves 5 to 8 ft occasionally to 10 ft. 
.saturday...west winds 15 to 25 kt. freezing spray. snow likely.
waves 5 to 8 ft occasionally to 10 ft.  

$$