fzus63 kmkx 151956
glflm 
expires:202607160315;;025735

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
256 pm cdt wed jul 15 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...

high pressure gradually breaks down this evening as a weak area of 
low pressure around 29.9 inches works its way across lake superior 
and down lake michigan. this has brought a northeasterly wind shift 
across the lake and will continue thursday. additional seeing 
wildfire smoke from northern mn and northwestern ontario reducing 
visibility across the northern third of the open waters to 1 nm or 
less at times this afternoon and likely to continue into 
thursday. thus a marine dense smoke advisory has been issued. 
smoke is expected to continue to spread southward, but uncertain 
on how low visibilities will fall for the southern portions of 
lake michigan. will continue to monitor if an expansion of the 
advisory will be needed.

otherwise, lighter winds expected again on thursday as another high 
pressure around 30.1 inches briefly builds back into the region 
before influence from a low pressure around 29.7 inches developing 
over the northern plains pushes eastward through the weekend 
bringing more southwesterly flow for friday into saturday. then as 
the low tracking northeastward, it will drag a cold front across the 
lake resulting in northerly wind shift through the day saturday with 
another high pressure building over the region for sunday. 
additionally will see periodic shower and thunderstorm chances 
across the lake for the end of the week through the weekend. 


lmz366-565-567-868-160315-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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-
256 pm cdt wed jul 15 2026

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

.tonight...northeast winds 10 to 20 kt diminishing to 5 to 10 kt.
smoke. waves 1 to 3 ft. 
.thursday...northeast winds 5 to 10 kt increasing to 10 to 20 kt.
smoke. waves 1 to 2 ft. 
.thursday night...northeast winds 10 to 15 kt becoming east 5 to
10 kt. smoke. waves 1 to 2 ft. 
.friday...southeast winds 5 to 10 kt becoming northeast 10 to
15 kt. smoke in the morning. chance of showers in the morning.
waves 1 to 2 ft. 
.friday night...southeast winds 10 to 15 kt becoming southwest.
chance of showers overnight. waves 1 to 3 ft building to 2 to
4 ft. 
.saturday...southwest winds 10 to 20 kt veering to north to 30 kt
in the afternoon. chance of showers. waves 2 to 4 ft. 
.saturday night...north winds to 30 kt becoming northeast 10 to
20 kt. waves 3 to 5 ft. 
.sunday...northeast winds 10 to 15 kt backing to west 10 to
20 kt. waves 1 to 3 ft. 
.monday...southwest winds 15 to 25 kt increasing to 30 kt. chance
of showers. waves 3 to 5 ft building to 4 to 6 ft occasionally to
8 ft.  

$$

fzus63 kmkx 151956
glflm 
expires:202607160315;;025736

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
256 pm cdt wed jul 15 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...

high pressure gradually breaks down this evening as a weak area of 
low pressure around 29.9 inches works its way across lake superior 
and down lake michigan. this has brought a northeasterly wind shift 
across the lake and will continue thursday. additional seeing 
wildfire smoke from northern mn and northwestern ontario reducing 
visibility across the northern third of the open waters to 1 nm or 
less at times this afternoon and likely to continue into 
thursday. thus a marine dense smoke advisory has been issued. 
smoke is expected to continue to spread southward, but uncertain 
on how low visibilities will fall for the southern portions of 
lake michigan. will continue to monitor if an expansion of the 
advisory will be needed.

otherwise, lighter winds expected again on thursday as another high 
pressure around 30.1 inches briefly builds back into the region 
before influence from a low pressure around 29.7 inches developing 
over the northern plains pushes eastward through the weekend 
bringing more southwesterly flow for friday into saturday. then as 
the low tracking northeastward, it will drag a cold front across the 
lake resulting in northerly wind shift through the day saturday with 
another high pressure building over the region for sunday. 
additionally will see periodic shower and thunderstorm chances 
across the lake for the end of the week through the weekend. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-160315-
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-
256 pm cdt wed jul 15 2026

sheboygan wi to pentwater mi south...

.tonight...north winds 10 to 20 kt becoming northeast 5 to 10 kt.
areas of smoke. waves 1 to 3 ft. 
.thursday...east winds 5 to 10 kt becoming northeast 10 to 20 kt.
areas of smoke in the morning, then smoke in the afternoon. waves
1 to 2 ft. 
.thursday night...northeast winds 10 to 15 kt becoming east.
smoke in the evening, then patchy smoke overnight. waves 1 to
2 ft. 
.friday...southeast winds 5 to 10 kt increasing to 10 to 15 kt.
areas of smoke in the morning. waves 1 to 2 ft. 
.friday night...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft building to 2 to 4 ft. 
.saturday...southwest winds 10 to 20 kt becoming west to 30 kt in
the afternoon. chance of showers and thunderstorms in the
afternoon. waves 3 to 5 ft. 
.saturday night...north winds to 30 kt becoming northeast 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft. 
.sunday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
waves 2 to 4 ft subsiding to 1 to 3 ft. 
.monday...southwest winds 15 to 25 kt increasing to 30 kt. chance
of showers and thunderstorms. waves 3 to 5 ft building to 4 to
6 ft occasionally to 8 ft.  

$$