fzus63 kmkx 260857
glflm 
expires:202512261615;;245178

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
257 am cst fri dec 26 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...

low pressure of 29.7 inches over the upper mississippi valley to 
western lake superior will continue to progress eastward today,
bringing modest southeasterly winds to lake michigan this morning,
transitioning to light and variable this afternoon before a cold
front shifts winds to northwesterly this evening into tonight.
high pressure around 29.9 inches builds in briefly tonight into
saturday, with light and variable winds again.

modest southeast winds will then return by midday saturday and
continue through sunday morning as low pressure develops over the
central plains. low pressure deepens to 29.5 inches saturday
evening and crosses southern lake michigan, bringing gusty
northwesterly winds up to gale force. the low will continue to 
deepen throughout monday as it moves eastward, reaching 29.0 
inches in southern quebec monday night. confidence is high in gale
force winds through monday night. much colder air will also bring
moderate freezing spray throughout this time frame.


lmz261-362-364-366-563-565-567-868-261615-
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-
257 am cst fri dec 26 2025

sheboygan wi to pentwater mi north...

.today...southeast winds to 30 kt diminishing to 15 to 25 kt late
this morning, then becoming east 10 to 20 kt early this afternoon
backing to north 10 to 15 kt late. patchy fog this morning.
drizzle, snow, light sleet and light freezing drizzle this
morning. waves 6 to 9 ft occasionally to 12 ft subsiding to 2 to
4 ft. 
.tonight...north winds 5 to 10 kt veering to southeast. waves
1 to 3 ft subsiding to 1 to 2 ft. 
.saturday...southeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 2 ft building to 4 to 6 ft occasionally to
8 ft. 
.saturday night...southeast winds 15 to 25 kt diminishing to
10 to 20 kt. chance of rain and light freezing rain overnight.
waves 4 to 7 ft occasionally to 9 ft. 
.sunday...east winds 10 to 15 kt backing to north 10 to 20 kt.
chance of rain in the morning, then rain likely in the afternoon.
waves 3 to 5 ft. 
.sunday night...north winds to 30 kt becoming northwest gales to
40 kt. snow and rain likely. waves 5 to 8 ft occasionally to
10 ft building to 10 to 14 ft occasionally to 18 ft. 
.monday...northwest gales to 45 kt. freezing spray. snow likely.
waves 12 to 16 ft occasionally to 21 ft. 
.tuesday...west winds to 30 kt. chance of snow. waves 6 to 9 ft
occasionally to 12 ft.  

$$

fzus63 kmkx 260857
glflm 
expires:202512261615;;245179

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
257 am cst fri dec 26 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...

low pressure of 29.7 inches over the upper mississippi valley to 
western lake superior will continue to progress eastward today,
bringing modest southeasterly winds to lake michigan this morning,
transitioning to light and variable this afternoon before a cold
front shifts winds to northwesterly this evening into tonight.
high pressure around 29.9 inches builds in briefly tonight into
saturday, with light and variable winds again.

modest southeast winds will then return by midday saturday and
continue through sunday morning as low pressure develops over the
central plains. low pressure deepens to 29.5 inches saturday
evening and crosses southern lake michigan, bringing gusty
northwesterly winds up to gale force. the low will continue to 
deepen throughout monday as it moves eastward, reaching 29.0 
inches in southern quebec monday night. confidence is high in gale
force winds through monday night. much colder air will also bring
moderate freezing spray throughout this time frame.


lmz080-669-671-673-675-777-779-870-872-874-876-878-261615-
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-
257 am cst fri dec 26 2025

sheboygan wi to pentwater mi south...

.today...southeast winds to 30 kt becoming south 10 to 20 kt late
this morning, then veering to north early this afternoon becoming
northwest late. patchy fog this morning. drizzle this morning.
waves 6 to 9 ft occasionally to 12 ft subsiding to 2 to 4 ft. 
.tonight...northwest winds 10 to 15 kt becoming north late in the
evening, then diminishing to 5 to 10 kt after midnight becoming
east late. waves 1 to 3 ft subsiding to 1 to 2 ft. 
.saturday...southeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 2 ft building to 4 to 6 ft occasionally to
8 ft. 
.saturday night...southeast winds 15 to 25 kt diminishing to
10 to 20 kt. chance of rain in the evening, then rain likely
overnight. waves 4 to 7 ft occasionally to 9 ft. 
.sunday...south winds 10 to 15 kt veering to northwest 10 to
20 kt. chance of rain in the morning, then rain likely in the
afternoon. waves 3 to 5 ft. 
.sunday night...northwest winds to 30 kt increasing to gales to
40 kt. rain and snow likely. waves 6 to 9 ft occasionally to
12 ft building to 12 to 16 ft occasionally to 21 ft. 
.monday...northwest gales to 45 kt. chance of snow. waves 15 to
20 ft occasionally to 26 ft. 
.tuesday...west winds to 30 kt. waves 8 to 11 ft occasionally to
14 ft subsiding to 6 to 9 ft occasionally to 12 ft.  

$$