fzus61 kcle 251945
glfle 
expires:202608260215;;351187

open lake forecast for lake erie
national weather service cleveland oh
345 pm edt tue aug 25 2026

for waters beyond five nautical miles of shore on lake erie

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...
high pressure of 30.10 inches over lake erie will moves to new 
england on wednesday. low pressure of 29.70 inches will pass north
of the great lakes wednesday and thursday, pulling a cold front 
across lake erie. high pressure of 30.20 inches will build into 
the great lakes friday before settling to the mid-atlantic region 
on sunday.


lez162>164-260215-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
345 pm edt tue aug 25 2026

.tonight...southeast winds 5 to 10 knots becoming south. waves
2 feet or less. 
.wednesday...south winds around 10 knots becoming southwest.
waves 2 feet or less. 
.wednesday night...south winds 10 to 15 knots becoming southwest.
a chance of showers and thunderstorms. waves 1 to 3 feet. 
.thursday...west winds 5 to 15 knots diminishing to less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.thursday night...west winds 10 knots or less becoming north.
waves 1 foot or less. 
.friday...north winds 5 to 10 knots becoming east. waves 2 feet
or less. 
.saturday...east winds 5 to 10 knots becoming south. waves 1 foot
or less. 
.sunday...south winds 5 to 15 knots becoming southwest. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 251930
glfsc 
expires:202608260330;;350783

lake st clair forecast
national weather service detroit/pontiac mi
330 pm edt tue aug 25 2026

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...high pressure, 30.10 inches, holds over the great
lakes today. southwest winds will increase tonight ahead of a
cold front, which brings showers and thunderstorms to the central
great lakes tomorrow.


lcz460-260330-
lake st clair-
330 pm edt tue aug 25 2026

.tonight...south winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.wednesday...southwest winds 5 to 10 knots becoming south 10 to 15
knots in the late morning and afternoon. partly sunny. waves 2 feet
or less.
.wednesday night...southwest winds 10 to 15 knots. partly cloudy
becoming mostly cloudy by midnight becoming partly cloudy. a chance
of showers and thunderstorms . waves 2 feet or less.
.thursday...west winds 5 to 10 knots. mostly cloudy early in the
morning then clearing. waves 2 feet or less.
.thursday night...north winds 5 to 10 knots. mostly clear. waves 2
feet or less.
.friday...north winds 5 to 10 knots becoming northeast 10 to 15
knots in the evening. clear. waves 2 feet or less.
.saturday...southeast winds 5 to 10 knots. mostly clear. waves 2
feet or less.
.sunday...south winds 10 to 15 knots. partly cloudy. waves 2 feet or
less.

$$

fzus63 kdtx 251930
glflh 
expires:202608260330;;350776

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 pm edt tue aug 25 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...high pressure, 30.10 inches, holds over the great
lakes today. southwest winds will increase tonight ahead of a
cold front, which brings showers and thunderstorms to the central
great lakes tomorrow.


lhz462>464-260330-
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-
330 pm edt tue aug 25 2026

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


$$

fzus63 kmkx 251932
glflm 
expires:202608260330;;350805

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
232 pm cdt tue aug 25 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...

breezy south winds will continue this evening as the pressure
gradient sharpens ahead of an approaching cold front and low
pressure of 29.7 inches just north of lake superior. breezy
south winds will continue tonight through tomorrow morning as
the front slowly approaches, with winds becoming more
southwesterly with time. the front should then pass wednesday
afternoon, with winds then becoming northwesterly and lighter
behind the front wednesday night.

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 30.1 inches moves into the upper
great lakes region.



lmz261-362-364-366-563-565-567-868-260330-
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-
232 pm cdt tue aug 25 2026

sheboygan wi to pentwater mi north...

.tonight...south winds to 25 kt. chance of showers and slight 
chance of thunderstorms overnight. waves 4 to 6 ft occasionally to
8 ft. 
.wednesday...south winds to 25 kt becoming west 15 to 25 kt. 
chance of showers and slight chance of thunderstorms in the 
morning, then chance of showers and thunderstorms in the 
afternoon. waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 
5 ft. 
.wednesday night...northwest winds 10 to 20 kt. chance of
thunderstorms in the evening. waves 2 to 4 ft subsiding to 1 to
3 ft. 
.thursday...northwest winds 15 to 25 kt becoming north. 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. waves 1 to 2 ft. 
.friday night...southeast winds 10 to 15 kt becoming south. waves
1 to 2 ft. 
.saturday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.sunday...south gales to 35 kt increasing to gales to 40 kt.
chance of showers. waves 5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmkx 251932
glflm 
expires:202608260330;;350806

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
232 pm cdt tue aug 25 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...

breezy south winds will continue this evening as the pressure
gradient sharpens ahead of an approaching cold front and low
pressure of 29.7 inches just north of lake superior. breezy
south winds will continue tonight through tomorrow morning as
the front slowly approaches, with winds becoming more
southwesterly with time. the front should then pass wednesday
afternoon, with winds then becoming northwesterly and lighter
behind the front wednesday night.

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 30.1 inches moves into the upper
great lakes region.



lmz080-669-671-673-675-777-779-870-872-874-876-878-260330-
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-
232 pm cdt tue aug 25 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 15 to 25 kt becoming southwest. chance of
showers and slight chance of thunderstorms overnight. waves 3 to
5 ft building to 4 to 6 ft occasionally to 8 ft. 
.wednesday...southwest winds to 25 kt diminishing to 10 to 20 kt.
chance of showers and slight chance of thunderstorms in the 
morning, then chance of showers and thunderstorms in the 
afternoon. waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 
5 ft. 
.wednesday night...west winds 10 to 20 kt becoming northwest.
waves 2 to 4 ft. 
.thursday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft. 
.thursday night...north winds 10 to 20 kt becoming northeast
10 to 15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.friday...northeast winds 5 to 10 kt increasing to 10 to 15 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 1 to 3 ft building to 3 to 5 ft. 
.sunday...south gales to 35 kt. waves 5 to 8 ft occasionally to
10 ft.  

$$