fzus63 kmkx 090257
glflm 
expires:202601091030;;031268

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
857 pm cst thu jan 8 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...

low pressure around 29.2 inches is currently centered over
southeastern iowa, and is expected to lift into the northern half
of lake michigan late tonight. expect southeasterly winds to
continue across the southern half, with easterly winds across the
northern half through late tonight as low pressure approaches,
then expect winds to veer southwesterly across the entire lake
before shift rapidly to become northwesterly as low pressure
exits. gusts to 30 kt are expected, with isolated gales also
expected starting early friday morning along this front,
especially along the eastern lakeshore regions. 

winds will gradually weaken friday afternoon as high pressure 
around 30.2 inches works its way across lake michigan through
friday night. meanwhile, an area of low pressure lifting through 
the southern plains and an additional area of low pressure digging
into the upper midwest will interact, merging over the great 
lakes region into saturday. expect west-northwesterly winds over 
lake michigan to increase on the backside of this deepening area
of low pressure as it lift into eastern ontario/quebec. will be a
potential for gales across the open water, but still some 
uncertainty on the overall strength of the low pressure. another
area of high pressure will build across the region for sunday 
before another low traverses the region early next week.


lmz261-362-364-366-563-565-567-868-091030-
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-
857 pm cst thu jan 8 2026

sheboygan wi to pentwater mi north...

.rest of tonight...southeast winds 15 to 25 kt veering to west to
30 kt. rain through early evening, then rain and slight chance of
thunderstorms overnight. patchy fog overnight. waves 4 to 7 ft
occasionally to 9 ft building to 7 to 10 ft occasionally to
13 ft. 
.friday...northwest winds to 30 kt. patchy fog in the morning.
rain and snow in the morning. waves 8 to 11 ft occasionally to
14 ft subsiding to 5 to 8 ft occasionally to 10 ft. 
.friday night...northwest winds 10 to 20 kt becoming north 5 to
10 kt late in the evening, then veering to east after midnight
becoming southeast late. waves 3 to 5 ft subsiding to 1 to 2 ft. 
.saturday...southeast winds 10 to 20 kt becoming east 15 to
25 kt. chance of snow in the morning, then snow likely in the
afternoon. waves 1 to 3 ft building to 3 to 5 ft. 
.saturday night...north winds to 30 kt. snow likely. waves 5 to
8 ft occasionally to 10 ft building to 8 to 11 ft occasionally to
14 ft. 
.sunday...north gales to 35 kt becoming northwest to 30 kt. waves
8 to 11 ft occasionally to 14 ft subsiding to 7 to 10 ft
occasionally to 13 ft. 
.sunday night...west winds 15 to 25 kt becoming southwest to
30 kt. waves 4 to 7 ft occasionally to 9 ft. 
.monday...southwest winds to 30 kt. waves 5 to 8 ft occasionally
to 10 ft. 
.tuesday...southwest winds 10 to 20 kt. chance of rain and snow.
waves 3 to 5 ft.  

$$

fzus63 kmkx 090257
glflm 
expires:202601091030;;031269

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
857 pm cst thu jan 8 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...

low pressure around 29.2 inches is currently centered over
southeastern iowa, and is expected to lift into the northern half
of lake michigan late tonight. expect southeasterly winds to
continue across the southern half, with easterly winds across the
northern half through late tonight as low pressure approaches,
then expect winds to veer southwesterly across the entire lake
before shift rapidly to become northwesterly as low pressure
exits. gusts to 30 kt are expected, with isolated gales also
expected starting early friday morning along this front,
especially along the eastern lakeshore regions. 

winds will gradually weaken friday afternoon as high pressure 
around 30.2 inches works its way across lake michigan through
friday night. meanwhile, an area of low pressure lifting through 
the southern plains and an additional area of low pressure digging
into the upper midwest will interact, merging over the great 
lakes region into saturday. expect west-northwesterly winds over 
lake michigan to increase on the backside of this deepening area
of low pressure as it lift into eastern ontario/quebec. will be a
potential for gales across the open water, but still some 
uncertainty on the overall strength of the low pressure. another
area of high pressure will build across the region for sunday 
before another low traverses the region early next week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-091030-
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-
857 pm cst thu jan 8 2026

sheboygan wi to pentwater mi south...

.rest of tonight...southeast winds to 30 kt becoming southwest.
chance of rain and slight chance of thunderstorms. patchy fog
overnight. waves 4 to 7 ft occasionally to 9 ft building to 7 to
10 ft occasionally to 13 ft. 
.friday...west winds to 30 kt becoming northwest late in the 
morning, with isolated gales possible. diminishing to 30 kt early
in the afternoon becoming north 15 to 25 kt late. chance of rain 
in the morning. waves 8 to 11 ft occasionally to 14 ft subsiding 
to 6 to 9 ft occasionally to 12 ft. 
.friday night...north winds 10 to 15 kt veering to southeast 5 to
10 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to
4 ft. 
.saturday...south winds 10 to 15 kt veering to west 15 to 25 kt
in the afternoon. snow and rain likely. waves 1 to 3 ft building
to 4 to 6 ft occasionally to 8 ft. 
.saturday night...west winds to 30 kt becoming northwest gales to
35 kt. snow likely. waves 6 to 9 ft occasionally to 12 ft
building to 8 to 12 ft occasionally to 16 ft. 
.sunday...northwest gales to 35 kt diminishing to 30 kt. chance
of snow in the morning. waves 10 to 14 ft occasionally to 18 ft. 
.sunday night...west winds 10 to 20 kt becoming southwest to
30 kt. waves 6 to 9 ft occasionally to 12 ft. 
.monday...southwest winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft. 
.tuesday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
chance of rain. waves 4 to 6 ft occasionally to 8 ft.  

$$