fzus63 kdtx 261935
glflh 
expires:202608270345;;405454

open lake forecast for lake huron
national weather service detroit/pontiac mi
335 pm edt wed aug 26 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a cold front will move through tonight bringing
increasing chances for showers and thunderstorms ahead of it for
this afternoon and evening. wind direction veers south to west
after passage of the front then northwest flow holds through
thursday. high pressure builds back into the great lakes friday
into saturday.


lhz361-270345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
335 pm edt wed aug 26 2026

.tonight...south winds 5 to 10 knots veering to the southwest
late in the evening...then veering to the west after midnight
increasing to 10 to 15 knots early in the morning. showers and
thunderstorms likely in the evening. a chance of waterspouts in
the evening. waves 1 to 3 feet. 
.thursday...northwest winds 10 to 15 knots. waves 2 to 4 feet. 
.thursday night...northwest winds 10 to 15 knots. waves 2 to
4 feet subsiding to 1 to 3 feet after midnight. 
.friday...northwest winds 5 to 10 knots backing to the west early
in the afternoon. waves 2 feet or less. 
.friday night...west winds 5 to 10 knots early in the evening
becoming light and variable...then becoming south 5 to 10 knots
after midnight. waves 2 feet or less. 
.saturday...south winds 5 to 10 knots. a chance of showers late
in the evening. waves 2 feet or less. 
.sunday...southwest winds 5 to 10 knots backing to the southeast
. a chance of showers early in the morning. rain showers likely
in the late morning and early afternoon...then a chance of
showers . waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and early afternoon...then
decreasing to 5 to 10 knots . a chance of showers. waves 1 to
3 feet. 


$$

fzus63 kdtx 261935
glflh 
expires:202608270345;;405455

open lake forecast for lake huron
national weather service detroit/pontiac mi
335 pm edt wed aug 26 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a cold front will move through tonight bringing
increasing chances for showers and thunderstorms ahead of it for
this afternoon and evening. wind direction veers south to west
after passage of the front then northwest flow holds through
thursday. high pressure builds back into the great lakes friday
into saturday.


lhz362-363-270345-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
335 pm edt wed aug 26 2026

.tonight...south winds 10 to 15 knots becoming southwest 5 to
10 knots after midnight...then becoming west 10 to 15 knots early
in the morning. a chance of showers and thunderstorms in the
evening. a chance of waterspouts. waves 2 to 4 feet subsiding to
1 to 3 feet early in the morning. 
.thursday...northwest winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet in the late morning and afternoon. 
.thursday night...northwest winds 15 to 20 knots decreasing to
10 to 15 knots by midnight...then becoming northwest 10 to
15 knots after midnight. waves 2 to 4 feet. 
.friday...north winds 5 to 10 knots until late afternoon becoming
light and variable. waves 1 to 3 feet. 
.friday night...light and variable winds becoming south 5 to
10 knots after midnight. waves 2 feet or less. 
.saturday...south winds 5 to 10 knots increasing to 10 to
15 knots. waves 1 to 3 feet. 
.sunday...south winds 10 to 15 knots becoming southeast 5 to
10 knots by midnight. a chance of showers. waves 1 to 3 feet. 
.monday...south winds 5 to 10 knots becoming southeast 10 to
15 knots in the late morning and early afternoon...then
decreasing to 5 to 10 knots . a chance of showers. waves 1 to
3 feet. 


$$

fzus63 kdtx 261935
glflh 
expires:202608270345;;405456

open lake forecast for lake huron
national weather service detroit/pontiac mi
335 pm edt wed aug 26 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a cold front will move through tonight bringing
increasing chances for showers and thunderstorms ahead of it for
this afternoon and evening. wind direction veers south to west
after passage of the front then northwest flow holds through
thursday. high pressure builds back into the great lakes friday
into saturday.


lhz462>464-270345-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
335 pm edt wed aug 26 2026

.tonight...south winds 10 to 15 knots veering to the southwest
early in the morning. thunderstorms likely and a chance of
showers in the evening. a chance of waterspouts in the evening.
waves 2 to 4 feet subsiding to 1 to 3 feet after midnight. 
.thursday...west winds 10 to 15 knots decreasing to 5 to 10 knots
early in the afternoon...then veering to the west 5 to 10 knots
late in the afternoon. waves 1 to 3 feet. 
.thursday night...north winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet in the late evening and overnight. 
.friday...north winds 5 to 10 knots. waves 1 to 3 feet. 
.friday night...light and variable winds becoming east 5 to
10 knots by midnight...then veering to the southeast after
midnight. waves 2 feet or less. 
.saturday...south winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. waves 1 to 3 feet. 
.sunday...south winds 10 to 15 knots. a chance of showers. waves
1 to 3 feet. 
.monday...south winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and early afternoon...then decreasing to 5 to
10 knots . a chance of showers. waves 1 to 3 feet. 


$$

fzus63 kmkx 261402
glflm 
expires:202608262115;;391792

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt wed aug 26 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...

no major changes to the going forecast with this issuance.

breezy south winds will continue through the morning as the 
pressure gradient sharpens ahead of a slow-moving cold front and 
low pressure of 29.7 inches just north of lake superior. winds 
will become more southwesterly later this morning, then westerly 
with the frontal passage in the afternoon. look for lighter
northwesterly winds behind the front tonight.

the northwest winds will grow breezier for a bit on thursday
ahead of another cold front dropping south over the lake, but
winds will then become lighter and northeasterly thursday night
into friday as high pressure of 30.2 inches moves into the upper
great lakes region.


lmz261-362-364-366-563-565-567-868-262115-
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-
902 am cdt wed aug 26 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 15 to 25 kt diminishing to 10 to
20 kt. chance of showers and thunderstorms. waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft. 
.tonight...northwest winds 10 to 20 kt. slight chance of showers
and thunderstorms in the evening. waves 2 to 4 ft subsiding to
1 to 3 ft. 
.thursday...northwest winds 10 to 20 kt becoming north 15 to
25 kt. waves 2 to 4 ft. 
.thursday night...north winds 15 to 25 kt diminishing to 10 to
15 kt overnight. waves 1 to 3 ft. 
.friday...north winds 10 to 15 kt becoming northeast 10 to 20 kt.
waves 1 to 2 ft. 
.friday night...southeast winds 10 to 20 kt becoming south 10 to
15 kt. waves 1 to 3 ft. 
.saturday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.sunday...south gales to 35 kt. chance of showers. waves 6 to
9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 261402
glflm 
expires:202608262115;;391793

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
902 am cdt wed aug 26 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...

no major changes to the going forecast with this issuance.

breezy south winds will continue through the morning as the 
pressure gradient sharpens ahead of a slow-moving cold front and 
low pressure of 29.7 inches just north of lake superior. winds 
will become more southwesterly later this morning, then westerly 
with the frontal passage in the afternoon. look for lighter
northwesterly winds behind the front tonight.

the northwest winds will grow breezier for a bit on thursday
ahead of another cold front dropping south over the lake, but
winds will then become lighter and northeasterly thursday night
into friday as high pressure of 30.2 inches moves into the upper
great lakes region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-262115-
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-
902 am cdt wed aug 26 2026

sheboygan wi to pentwater mi south...

.rest of today...southwest winds 15 to 25 kt diminishing to 10 to
20 kt. slight chance of showers and thunderstorms. waves 4 to
6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.tonight...west winds 10 to 20 kt becoming northwest 10 to 15 kt.
waves 2 to 4 ft. 
.thursday...northwest winds 10 to 20 kt becoming north 15 to
25 kt. waves 3 to 5 ft. 
.thursday night...northeast winds 10 to 20 kt diminishing to
10 to 15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.friday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.friday night...east winds 10 to 20 kt veering to southeast 10 to
15 kt. waves 1 to 3 ft. 
.saturday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.sunday...south gales to 35 kt. chance of showers. waves 6 to
9 ft occasionally to 12 ft.  

$$