fzus63 kmkx 130659
glflm 
expires:202610131515;;012161

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
159 am cdt tue oct 13 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 26.6 inches over central wisconsin will
progress eastward overnight, crossing the northern half of lake
michigan. as this occurs, scattered thunderstorms are expected
over the northern half of the lake, with breezy east winds over
the northern tip of the lake and breezy southwest winds over the
southern half. winds turn west/northwest across the whole lake 
into tuesday and remain breezy as the low departs east. light 
north winds expected tuesday night, with isolated thunderstorms 
possible across far southern portions of the lake. winds become 
northerly across the southern half on wednesday as high pressure 
moves eastward over the northern half of the lake, then easterly 
into wednesday night as high pressure moves eastward. winds weaken
into thursday as low pressure moves east through the mississippi 
valley, then become northwesterly gales late thursday night into 
friday as low pressure moves into the eastern great lakes and 
intensifies. a few storm force gusts are possible friday.


lmz261-362-364-366-563-565-567-868-131515-
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-
159 am cdt tue oct 13 2026

sheboygan wi to pentwater mi north...

.today...southwest winds 15 to 25 kt veering to northwest 10 to
20 kt. patchy fog this morning. chance of showers this morning.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.tonight...north winds 10 to 20 kt. waves 1 to 3 ft. 
.wednesday...north winds 10 to 20 kt. waves 2 to 4 ft. 
.wednesday night...north winds 10 to 20 kt becoming northeast.
waves 2 to 4 ft. 
.thursday...southeast winds 10 to 15 kt. waves 2 to 4 ft. 
.thursday night...southwest winds 10 to 15 kt becoming northwest
gales to 35 kt. rain showers likely. waves 1 to 3 ft building to
5 to 8 ft occasionally to 10 ft. 
.friday...northwest gales to 45 kt. chance of rain showers. waves
12 to 16 ft occasionally to 21 ft. 
.saturday...northwest winds 15 to 25 kt becoming west to 30 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft.  

$$

fzus63 kmkx 130659
glflm 
expires:202610131515;;012162

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
159 am cdt tue oct 13 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 26.6 inches over central wisconsin will
progress eastward overnight, crossing the northern half of lake
michigan. as this occurs, scattered thunderstorms are expected
over the northern half of the lake, with breezy east winds over
the northern tip of the lake and breezy southwest winds over the
southern half. winds turn west/northwest across the whole lake 
into tuesday and remain breezy as the low departs east. light 
north winds expected tuesday night, with isolated thunderstorms 
possible across far southern portions of the lake. winds become 
northerly across the southern half on wednesday as high pressure 
moves eastward over the northern half of the lake, then easterly 
into wednesday night as high pressure moves eastward. winds weaken
into thursday as low pressure moves east through the mississippi 
valley, then become northwesterly gales late thursday night into 
friday as low pressure moves into the eastern great lakes and 
intensifies. a few storm force gusts are possible friday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-131515-
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-
159 am cdt tue oct 13 2026

sheboygan wi to pentwater mi south...

.today...southwest winds 15 to 25 kt becoming west 10 to 20 kt,
then becoming northwest 10 to 15 kt late. waves 4 to 7 ft
occasionally to 9 ft subsiding to 2 to 4 ft. 
.tonight...north winds 5 to 10 kt becoming northeast. chance of
showers in the evening, then chance of showers and slight chance
of thunderstorms overnight. waves 1 to 3 ft subsiding to 1 to
2 ft. 
.wednesday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 3 ft building to 3 to 5 ft. 
.wednesday night...northeast winds 10 to 20 kt becoming east.
waves 4 to 6 ft occasionally to 8 ft. 
.thursday...east winds 10 to 20 kt. chance of showers in the
morning, then showers likely in the afternoon. waves 4 to 6 ft
occasionally to 8 ft. 
.thursday night...northeast winds 10 to 15 kt backing to
northwest gales to 35 kt. showers likely. waves 2 to 4 ft
building to 7 to 10 ft occasionally to 13 ft. 
.friday...northwest gales to 45 kt. chance of showers. waves
15 to 20 ft occasionally to 26 ft. 
.saturday...northwest winds 10 to 20 kt becoming west. waves 6 to
9 ft occasionally to 12 ft subsiding to 4 to 6 ft occasionally to
8 ft.  

$$