fzus63 kmkx 140729
glflm 
expires:202610141515;;069492

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
229 am cdt wed oct 14 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...

north winds for most of the lake tonight between a departing 
low pressure over the eastern great lakes and an approaching 
high pressure around 30.3 inches. winds will increase to 10 to 
20 knots by the wednesday afternoon, especially across the 
southern half of lake michigan as the high moves through the
northern great lakes with a tighter pressure gradient to the
south. winds will then become easterly wednesday night into 
thursday as the high pressure shifts eastward, with the stronger
winds remaining over the southern half of the lake. then two 
areas of low pressure are progged to merge over the great lakes 
region into a single low pressure toward the end of the week. 
this low pressure looks to deepen to around 29.5 inches as it 
shifts into the eastern great lakes later thursday through 
friday. expect winds to increase and shift to the northwest on 
the backside of the low pressure and behind its associated cold 
front as a strong high pressure around 30.7 inches impinges on 
the departing low. there is increasing confidence in a period of
gales, with a few gusts potentially approaching storm force for
the end of the week into the weekend. a gale watch has been
issued for the open waters friday morning into friday night.


lmz261-362-364-366-563-565-567-868-141515-
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-
229 am cdt wed oct 14 2026

sheboygan wi to pentwater mi north...

...gale watch in effect from late thursday night through late
friday night...

.today...north winds 10 to 20 kt. waves 2 to 4 ft. 
.tonight...north winds 10 to 20 kt becoming east 10 to 15 kt.
waves 2 to 4 ft. 
.thursday...east winds 10 to 15 kt becoming southeast. waves 2 to
4 ft. 
.thursday night...southwest winds 10 to 15 kt becoming northwest
gales to 35 kt overnight. showers. waves 1 to 3 ft building to
7 to 10 ft occasionally to 13 ft. 
.friday...northwest gales to 45 kt becoming north. rain showers
in the morning, then chance of rain showers in the afternoon.
waves 12 to 16 ft occasionally to 21 ft building to 14 to 18 ft
occasionally to 23 ft. 
.friday night...north gales to 45 kt becoming northwest gales to
35 kt. waves 14 to 18 ft occasionally to 23 ft subsiding to 10 to
14 ft occasionally to 18 ft. 
.saturday...west winds 15 to 25 kt becoming southwest to 30 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.sunday...southwest gales to 40 kt. waves 10 to 14 ft
occasionally to 18 ft.  

$$

fzus63 kmkx 140729
glflm 
expires:202610141515;;069493

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
229 am cdt wed oct 14 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...

north winds for most of the lake tonight between a departing 
low pressure over the eastern great lakes and an approaching 
high pressure around 30.3 inches. winds will increase to 10 to 
20 knots by the wednesday afternoon, especially across the 
southern half of lake michigan as the high moves through the
northern great lakes with a tighter pressure gradient to the
south. winds will then become easterly wednesday night into 
thursday as the high pressure shifts eastward, with the stronger
winds remaining over the southern half of the lake. then two 
areas of low pressure are progged to merge over the great lakes 
region into a single low pressure toward the end of the week. 
this low pressure looks to deepen to around 29.5 inches as it 
shifts into the eastern great lakes later thursday through 
friday. expect winds to increase and shift to the northwest on 
the backside of the low pressure and behind its associated cold 
front as a strong high pressure around 30.7 inches impinges on 
the departing low. there is increasing confidence in a period of
gales, with a few gusts potentially approaching storm force for
the end of the week into the weekend. a gale watch has been
issued for the open waters friday morning into friday night.


lmz080-669-671-673-675-777-779-870-872-874-876-878-141515-
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-
229 am cdt wed oct 14 2026

sheboygan wi to pentwater mi south...

...gale watch in effect from late thursday night through late
friday night...

.today...north winds 10 to 15 kt increasing to 10 to 20 kt. waves
3 to 5 ft. 
.tonight...northeast winds 10 to 20 kt becoming east. waves 4 to
6 ft occasionally to 8 ft. 
.thursday...east winds 10 to 20 kt diminishing to 10 to 15 kt.
showers 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 overnight. showers. waves 2 to 4 ft
building to 10 to 14 ft occasionally to 18 ft. 
.friday...northwest gales to 45 kt. showers. waves 15 to 20 ft
occasionally to 26 ft building to 18 to 23 ft occasionally to
30 ft. 
.friday night...north gales to 45 kt diminishing to gales to 35 
kt. waves 18 to 23 ft occasionally to 30 ft subsiding to 15 to 20 
ft occasionally to 26 ft. 
.saturday...northwest winds 10 to 20 kt becoming southwest to
30 kt. waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.sunday...southwest gales to 35 kt. waves 10 to 14 ft
occasionally to 18 ft.  

$$