fzus63 kmkx 270851
glflm 
expires:202512271630;;302498

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
251 am cst sat dec 27 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...

high pressure around 30.0 inches will slowly exit southern lake
michigan to the east today, with modest southeast winds returning
by midday as low pressure develops over the central plains and
slowly moves northeastward into sunday. low pressure deepens to 
29.2 inches sunday evening as it tracks across southern lake 
michigan, then deepens to 28.8 inches over northern lake huron 
monday morning. the strong low will then reach far southern quebec
by late monday. northwesterly gales will develop late sunday 
night across all open waters. confidence in storm force gusts has 
increased, and a storm watch has been issued for all open waters 
late sunday night through monday night. much colder air will also
bring moderate freezing spray throughout this time frame. winds 
will diminish slowly and shift to become westerly on tuesday as 
low pressure exits into northern quebec. 


lmz261-362-364-366-563-565-567-868-271630-
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-
251 am cst sat dec 27 2025

sheboygan wi to pentwater mi north...

...storm watch in effect from sunday evening through late monday
night...

.today...south winds 10 to 15 kt becoming southeast 15 to 25 kt.
waves 1 to 2 ft building to 3 to 5 ft. 
.tonight...southeast winds 15 to 25 kt diminishing to 10 to
20 kt. slight chance of light freezing rain in the evening, then
chance of rain and light freezing rain overnight. waves 4 to 7 ft
occasionally to 9 ft. 
.sunday...southeast winds 10 to 20 kt becoming northeast. rain
likely with a chance of light freezing rain in the morning, then
rain in the afternoon. waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft. 
.sunday night...northeast gales to 35 kt becoming northwest gales
to 45 kt overnight. rain and freezing rain in the evening, then
snow and rain overnight. waves 6 to 9 ft occasionally to 12 ft
building to 12 to 16 ft occasionally to 21 ft. 
.monday...northwest storm force winds to 50 kt. freezing spray.
snow in the morning, then snow likely in the afternoon. waves
15 to 20 ft occasionally to 26 ft. 
.monday night...northwest storm force winds to 55 kt diminishing
to storm force winds to 50 kt. freezing spray. chance of snow.
waves 14 to 18 ft occasionally to 23 ft subsiding to 12 to 16 ft
occasionally to 21 ft. 
.tuesday...northwest gales to 35 kt becoming west to 30 kt.
freezing spray. chance of snow. waves 8 to 11 ft occasionally to
14 ft subsiding to 4 to 7 ft occasionally to 9 ft. 
.wednesday...northwest winds to 30 kt increasing to gales to
35 kt. freezing spray. chance of snow. waves 6 to 9 ft
occasionally to 12 ft.  

$$

fzus63 kmkx 270851
glflm 
expires:202512271630;;302499

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
251 am cst sat dec 27 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...

high pressure around 30.0 inches will slowly exit southern lake
michigan to the east today, with modest southeast winds returning
by midday as low pressure develops over the central plains and
slowly moves northeastward into sunday. low pressure deepens to 
29.2 inches sunday evening as it tracks across southern lake 
michigan, then deepens to 28.8 inches over northern lake huron 
monday morning. the strong low will then reach far southern quebec
by late monday. northwesterly gales will develop late sunday 
night across all open waters. confidence in storm force gusts has 
increased, and a storm watch has been issued for all open waters 
late sunday night through monday night. much colder air will also
bring moderate freezing spray throughout this time frame. winds 
will diminish slowly and shift to become westerly on tuesday as 
low pressure exits into northern quebec. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-271630-
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-
251 am cst sat dec 27 2025

sheboygan wi to pentwater mi south...

...storm watch in effect from sunday evening through late monday
night...

.today...southeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.tonight...southeast winds 15 to 25 kt diminishing to 10 to
20 kt. chance of rain in the evening, then rain likely overnight.
patchy fog overnight. waves 4 to 7 ft occasionally to 9 ft. 
.sunday...southeast winds 10 to 20 kt becoming south 15 to 25 kt.
rain. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.sunday night...west gales to 45 kt increasing to storm force
winds to 50 kt. rain and snow in the evening, then snow
overnight. waves 8 to 12 ft occasionally to 16 ft building to
15 to 20 ft occasionally to 26 ft. 
.monday...northwest storm force winds to 50 kt. freezing spray in
the morning. snow in the morning, then chance of snow in the
afternoon. waves 18 to 23 ft occasionally to 30 ft. 
.monday night...northwest gales to 45 kt diminishing to gales to
40 kt. freezing spray. chance of snow. waves 18 to 23 ft
occasionally to 30 ft subsiding to 14 to 18 ft occasionally to
23 ft. 
.tuesday...northwest winds to 30 kt becoming west. freezing
spray. waves 10 to 14 ft occasionally to 18 ft subsiding to 7 to
10 ft occasionally to 13 ft. 
.wednesday...northwest winds to 30 kt increasing to gales to
35 kt. chance of snow. waves 8 to 12 ft occasionally to 16 ft.  

$$