fzus63 kmkx 100255
glflm 
expires:202601101030;;088886

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
855 pm cst fri jan 9 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...

light and variable winds continue tonight under 30.2 inch high
pressure. meanwhile, weak low pressure around 30.0 inches over
northern minnesota will dig southward and weak low pressure around
30.0 inches over southern missouri will lift northeastward. these
systems will merge over the great lakes saturday, and will deepen
to 29.5 inches as it lifts into eastern ontario saturday night.
expect west-northwest winds to increase saturday afternoon through
saturday night as high pressure around 30.6 inches builds across
the central plains. gale force gusts are expected, especially
across eastern portions of the open waters, and a gale watch is 
in effect from late saturday night through sunday morning. winds  
gradually ease sunday evening into monday as high pressure moves
into the ohio valley. will see southerly flow return by tuesday 
ahead of another low pressure system progged to traverse north of 
lake michigan through middle of next week.


lmz261-362-364-366-563-565-101030-
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-
855 pm cst fri jan 9 2026

two rivers wi to manistee mi north...

...gale watch in effect from late saturday night through sunday
morning...

.rest of tonight...northwest winds 10 to 15 kt backing to
southeast. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.saturday...southeast winds 10 to 15 kt increasing to 10 to 20 kt
late in the morning, then becoming southeast 10 to 20 kt early in
the afternoon backing to north 15 to 25 kt late. snow. waves 1 to
3 ft building to 4 to 6 ft occasionally to 8 ft. 
.saturday night...northwest winds to 30 kt increasing to gales to
35 kt. snow in the evening, then chance of snow overnight. 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. waves
10 to 14 ft occasionally to 18 ft subsiding to 7 to 10 ft
occasionally to 13 ft. 
.sunday night...west winds to 30 kt becoming southwest. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft. 
.monday...west winds to 30 kt diminishing to 15 to 25 kt. waves
4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.monday night...west winds 10 to 20 kt becoming southwest 15 to
25 kt. waves 3 to 5 ft building to 4 to 6 ft occasionally to
8 ft. 
.tuesday...southwest winds to 30 kt diminishing to 15 to 25 kt.
chance of rain. waves 4 to 7 ft occasionally to 9 ft. 
.wednesday...north winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft.  

$$

fzus63 kmkx 100255
glflm 
expires:202601101030;;088887

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
855 pm cst fri jan 9 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...

light and variable winds continue tonight under 30.2 inch high
pressure. meanwhile, weak low pressure around 30.0 inches over
northern minnesota will dig southward and weak low pressure around
30.0 inches over southern missouri will lift northeastward. these
systems will merge over the great lakes saturday, and will deepen
to 29.5 inches as it lifts into eastern ontario saturday night.
expect west-northwest winds to increase saturday afternoon through
saturday night as high pressure around 30.6 inches builds across
the central plains. gale force gusts are expected, especially
across eastern portions of the open waters, and a gale watch is 
in effect from late saturday night through sunday morning. winds  
gradually ease sunday evening into monday as high pressure moves
into the ohio valley. will see southerly flow return by tuesday 
ahead of another low pressure system progged to traverse north of 
lake michigan through middle of next week.


lmz567-868-101030-
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-
855 pm cst fri jan 9 2026

two rivers wi to manistee mi south to sheboygan wi to pentwater
mi...

...gale watch in effect from late saturday night through sunday
morning...

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

$$

fzus63 kmkx 100255
glflm 
expires:202601101030;;088888

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
855 pm cst fri jan 9 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...

light and variable winds continue tonight under 30.2 inch high
pressure. meanwhile, weak low pressure around 30.0 inches over
northern minnesota will dig southward and weak low pressure around
30.0 inches over southern missouri will lift northeastward. these
systems will merge over the great lakes saturday, and will deepen
to 29.5 inches as it lifts into eastern ontario saturday night.
expect west-northwest winds to increase saturday afternoon through
saturday night as high pressure around 30.6 inches builds across
the central plains. gale force gusts are expected, especially
across eastern portions of the open waters, and a gale watch is 
in effect from late saturday night through sunday morning. winds  
gradually ease sunday evening into monday as high pressure moves
into the ohio valley. will see southerly flow return by tuesday 
ahead of another low pressure system progged to traverse north of 
lake michigan through middle of next week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-101030-
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-
855 pm cst fri jan 9 2026

sheboygan wi to pentwater mi south...

...gale watch in effect from late saturday night through sunday
morning...

.rest of tonight...north winds 5 to 10 kt veering to southeast.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.saturday...south winds 10 to 15 kt becoming southwest 10 to
20 kt late in the morning, then becoming west 15 to 25 kt early
in the afternoon increasing to 30 kt late. snow and slight chance
of rain in the morning, then chance of snow and slight chance of
rain in the afternoon. waves 1 to 3 ft building to 5 to 8 ft
occasionally to 10 ft. 
.saturday night...west winds to 30 kt becoming northwest gales to
35 kt. snow likely. freezing spray overnight. waves 8 to 12 ft
occasionally to 16 ft building to 10 to 14 ft occasionally to
18 ft. 
.sunday...northwest gales to 40 kt diminishing to 30 kt in the
afternoon. chance of snow in the morning. waves 14 to 18 ft
occasionally to 23 ft. 
.sunday night...west winds 15 to 25 kt becoming southwest to
30 kt. waves 6 to 9 ft occasionally to 12 ft. 
.monday...southwest winds to 30 kt becoming west 15 to 25 kt.
waves 6 to 9 ft occasionally to 12 ft. 
.monday night...southwest winds 10 to 20 kt increasing to 30 kt.
waves 4 to 7 ft occasionally to 9 ft building to 5 to 8 ft
occasionally to 10 ft. 
.tuesday...southwest winds to 30 kt. chance of rain. waves 6 to
9 ft occasionally to 12 ft. 
.wednesday...northwest winds to 30 kt becoming north gales to
35 kt. chance of snow and rain. waves 8 to 11 ft occasionally to
14 ft.  

$$

fzus63 kmkx 092055
glflm 
expires:202601100415;;074485

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
255 pm cst fri jan 9 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...

winds continue to weaken through the evening as high pressure 
around 30.2 inches works its way across the lake michigan 
overnight. then looking at two areas of low pressure with one 
coming up from the southern plains and another digging down across
the upper midwest merging over the great lakes for saturday. 
expect west-northwesterly winds over lake michigan to increase on 
the backside of this deepening low pressure to around 29.5 inches 
as it lifts into eastern ontario/quebec later saturday night into 
sunday. given the incoming high pressure right behind the 
departing low pressure, expecting west-northwesterly winds to 
increase overnight into sunday. expecting to see gale force gusts,
especially for eastern half of lake michigan through sunday 
morning. thus a gale watch has been issued. wind then gradually 
ease sunday evening into monday as high pressure around 30.5 
inches builds south and east of lake michigan. will see southerly 
flow return by tuesday ahead of another low pressure system 
progged to traverse north of lake michigan through middle of next 
week.



lmz669-671-870-872-100415-
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 whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
255 pm cst fri jan 9 2026

sheboygan wi to pentwater mi south to north point light wi to
grand haven mi...

...gale warning in effect until 3 pm cst this afternoon...
...gale watch in effect from late saturday night through sunday
morning...

.tonight...northwest winds 10 to 15 kt backing to southeast.
chance of rain and snow overnight. waves 4 to 6 ft occasionally
to 8 ft subsiding to 1 to 3 ft. 
.saturday...south winds 10 to 15 kt increasing to 10 to 20 kt
late in the morning, then becoming west 15 to 25 kt early in the
afternoon increasing to 30 kt late. snow and rain in the morning,
then snow and rain likely in the afternoon. waves 1 to 3 ft
building to 5 to 8 ft occasionally to 10 ft. 
.saturday night...west winds to 30 kt becoming northwest gales to
35 kt. snow likely. freezing spray overnight. waves 8 to 11 ft
occasionally to 14 ft building to 10 to 14 ft occasionally to
18 ft. 
.sunday...northwest gales to 40 kt diminishing to 30 kt in the
afternoon. waves 12 to 16 ft occasionally to 21 ft. 
.sunday night...west winds 15 to 25 kt becoming southwest to
30 kt. waves 6 to 9 ft occasionally to 12 ft. 
.monday...southwest winds to 30 kt becoming west 15 to 25 kt.
waves 6 to 9 ft occasionally to 12 ft. 
.monday night...west winds 10 to 20 kt becoming southwest 15 to
25 kt. waves 4 to 7 ft occasionally to 9 ft building to 5 to 8 ft
occasionally to 10 ft. 
.tuesday...southwest winds to 30 kt becoming west. chance of
rain. waves 6 to 9 ft occasionally to 12 ft. 
.wednesday...north winds to 30 kt increasing to gales to 35 kt.
chance of snow. waves 8 to 11 ft occasionally to 14 ft.  

$$

fzus63 kmkx 092055
glflm 
expires:202601100415;;074486

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
255 pm cst fri jan 9 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...

winds continue to weaken through the evening as high pressure 
around 30.2 inches works its way across the lake michigan 
overnight. then looking at two areas of low pressure with one 
coming up from the southern plains and another digging down across
the upper midwest merging over the great lakes for saturday. 
expect west-northwesterly winds over lake michigan to increase on 
the backside of this deepening low pressure to around 29.5 inches 
as it lifts into eastern ontario/quebec later saturday night into 
sunday. given the incoming high pressure right behind the 
departing low pressure, expecting west-northwesterly winds to 
increase overnight into sunday. expecting to see gale force gusts,
especially for eastern half of lake michigan through sunday 
morning. thus a gale watch has been issued. wind then gradually 
ease sunday evening into monday as high pressure around 30.5 
inches builds south and east of lake michigan. will see southerly 
flow return by tuesday ahead of another low pressure system 
progged to traverse north of lake michigan through middle of next 
week.



lmz080-673-675-777-779-874-876-878-100415-
lake michigan from michigan city in to st. joseph mi 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 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-
255 pm cst fri jan 9 2026

north point light wi to grand haven mi south...

...gale watch in effect from late saturday night through sunday
morning...

.tonight...north winds 10 to 15 kt veering to southeast. slight
chance of rain overnight. waves 4 to 7 ft occasionally to 9 ft
subsiding to 2 to 4 ft. 
.saturday...south winds 10 to 15 kt becoming southwest 10 to
20 kt late in the morning, then becoming west 15 to 25 kt early
in the afternoon increasing to 30 kt late. snow and rain in the
morning, then chance of rain and snow in the afternoon. waves
1 to 3 ft building to 5 to 8 ft occasionally to 10 ft. 
.saturday night...west winds to 30 kt becoming northwest gales to
35 kt. chance of snow. freezing spray overnight. waves 8 to 12 ft
occasionally to 16 ft building to 10 to 14 ft occasionally to
18 ft. 
.sunday...northwest gales to 35 kt diminishing to 30 kt. chance
of snow in the morning. waves 12 to 16 ft occasionally to 21 ft. 
.sunday night...west winds 15 to 25 kt becoming southwest to
30 kt. waves 6 to 9 ft occasionally to 12 ft. 
.monday...southwest winds to 30 kt diminishing to 15 to 25 kt.
waves 6 to 9 ft occasionally to 12 ft. 
.monday night...southwest winds 10 to 20 kt increasing to 30 kt.
waves 4 to 7 ft occasionally to 9 ft building to 5 to 8 ft
occasionally to 10 ft. 
.tuesday...southwest winds to 30 kt. chance of rain. waves 6 to
9 ft occasionally to 12 ft. 
.wednesday...northwest winds to 30 kt becoming north gales to
35 kt. chance of snow and rain. waves 8 to 11 ft occasionally to
14 ft.  

$$