fzus61 kcle 230755
glfle 
expires:202608231415;;213554

open lake forecast for lake erie
national weather service cleveland oh
355 am edt sun aug 23 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...
a trough averaging 29.80 will linger over the eastern great lakes
today through monday morning. high pressure 30.00 inches will 
gradually build into the region monday afternoon through tuesday
night before departing to the east on wednesday. low pressure 
29.80 inches and a trailing cold front will moves across the 
great lakes late wednesday through thursday.


lez162-163-231415-
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-
355 am edt sun aug 23 2026

.today...northwest winds 15 to 20 knots becoming west. a chance
of waterspouts late. a slight chance of showers and thunderstorms
late. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...west winds 15 to 20 knots becoming northwest. a chance
of waterspouts early. a slight chance of showers and
thunderstorms early. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...northwest winds 15 to 20 knots becoming west. waves
1 to 3 feet building to 2 to 4 feet. 
.monday night...west winds 15 to 20 knots becoming northwest and
diminishing to around 10 knots. waves 1 to 3 feet. 
.tuesday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.wednesday...southwest winds 5 to 15 knots. a chance of showers
wednesday night. waves 2 feet or less. 
.thursday...southwest winds 5 to 15 knots becoming northwest. a
chance of showers and thunderstorms during the day. waves 1 foot
or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 230755
glfle 
expires:202608231415;;213555

open lake forecast for lake erie
national weather service cleveland oh
355 am edt sun aug 23 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...
a trough averaging 29.80 will linger over the eastern great lakes
today through monday morning. high pressure 30.00 inches will 
gradually build into the region monday afternoon through tuesday
night before departing to the east on wednesday. low pressure 
29.80 inches and a trailing cold front will moves across the 
great lakes late wednesday through thursday.


lez164-165-231415-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
355 am edt sun aug 23 2026

.today...northwest winds 15 to 20 knots becoming west. a chance
of waterspouts early. a chance of waterspouts late. a slight
chance of showers early. a slight chance of showers and
thunderstorms late. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.tonight...west winds 15 to 20 knots becoming northwest. a chance
of waterspouts through the early overnight. a chance of showers
and thunderstorms in the evening, then a slight chance of showers
after midnight. waves 3 to 5 feet. 
.monday...northwest winds 15 to 20 knots becoming west. waves
2 to 4 feet building to 3 to 5 feet. 
.monday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.wednesday...southwest winds 5 to 15 knots becoming south. a
chance of showers and thunderstorms wednesday night. waves 2 feet
or less. 
.thursday...southwest winds 5 to 15 knots becoming northwest. a
chance of showers and thunderstorms during the day, then a chance
of showers thursday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 230722
glflh 
expires:202608231530;;212687

open lake forecast for lake huron
national weather service detroit/pontiac mi
322 am edt sun aug 23 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...post-frontal northwest flow brings breezy conditions
through monday. chances for some rain showers and an isolated
thunderstorm will return this afternoon and evening, favored
across lake huron, high pressure, 30.10 inches, willl move over
the great lakes late tomorrow into tuesday.


lhz462>464-231530-
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-
322 am edt sun aug 23 2026

.today...northwest winds 20 to 25 knots with gusts to around
30 knots. a chance of showers in the morning...then a chance of
showers and thunderstorms in the afternoon. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.tonight...northwest winds 15 to 20 knots increasing to 20 to
25 knots late in the evening...then decreasing to 15 to 20 knots
after midnight increasing to 20 to 25 knots early in the morning.
gusts to 30 knots. a chance of showers and thunderstorms in the
evening...then a chance of showers after midnight. waves 8 to
12 feet. waves occasionally around 15 feet. 
.monday...west winds 20 to 25 knots becoming northwest 15 to
20 knots early in the afternoon. gusts to 30 knots. a chance of
showers in the morning. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.monday night...northwest winds 10 to 15 knots. waves 4 to
6 feet. waves occasionally around 8 feet. 
.tuesday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then becoming light and variable
late in the afternoon becoming southeast 5 to 10 knots late in
the evening. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...south winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and early afternoon...then
increasing to 15 to 20 knots early in the evening decreasing to
10 to 15 knots by midnight. showers likely and a chance of
thunderstorms . waves 1 to 3 feet building to 2 to 4 feet by
midnight. 
.thursday...south winds 10 to 15 knots becoming southwest 5 to
10 knots early in the evening...then veering to the northwest by
midnight. showers likely early in the morning...then a chance of
showers. waves 2 to 4 feet subsiding to 1 to 3 feet. 


$$

fzus63 kdtx 230719
glfsc 
expires:202608231530;;212633

lake st clair forecast
national weather service detroit/pontiac mi
319 am edt sun aug 23 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...post-frontal northwest flow brings breezy conditions
through monday. chances for some showers and an isolated
thunderstorm will return this afternoon and evening, favored
across lake huron, high pressure, 30.10 inches, willl move over
the great lakes late tomorrow into tuesday.


lcz460-231530-
lake st clair-
319 am edt sun aug 23 2026

.today...northwest winds 15 to 20 knots. mostly sunny. a chance of
showers and thunderstorms late in the afternoon. waves 1 to 3 feet.
.tonight...northwest winds 15 to 20 knots. partly cloudy in the
evening then clearing. a chance of showers and thunderstorms early
in the evening. waves 1 to 3 feet.
.monday...west winds 15 to 20 knots. mostly sunny. waves 2 feet or
less.
.monday night...northwest winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and overnight. mostly clear. waves 2
feet or less.
.tuesday...northwest winds 5 to 10 knots in the morning becoming
light and variable...then becoming south 5 to 10 knots in the
evening. sunny in the morning becoming mostly clear. waves 2 feet or
less.
.wednesday...south winds 10 to 15 knots. mostly clear. a chance of
showers and thunderstorms. waves 2 feet or less.
.thursday...west winds 10 to 15 knots. partly cloudy. a chance of
showers and thunderstorms. waves 2 feet or less.

$$

fzus63 kmkx 230755
glflm 
expires:202608231515;;213550

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
255 am cdt sun aug 23 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...

isolated showers and storms will remain possible over the lake
through mid morning, with a small chance for a waterspout. 
otherwise, breezy north to northwest winds will persist today due
to being sandwiched between deepening low pressure around 29.7 
inches over the eastern great lakes and high pressure of 30.2 
inches building in from the northwest. winds will eventually 
become lighter by midday monday, persisting into tuesday as the 
high moves overhead. breezy southerly winds will develop later 
tuesday into wednesday as the high exits and low pressure of 29.6 
inches approaches from manitoba.


lmz261-362-364-366-563-565-567-868-231515-
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-
255 am cdt sun aug 23 2026

sheboygan wi to pentwater mi north...

.today...northwest winds 15 to 25 kt becoming north to 30 kt.
waves 4 to 7 ft occasionally to 9 ft. 
.tonight...north winds to 30 kt becoming northwest. waves 4 to
7 ft occasionally to 9 ft. 
.monday...northwest winds 15 to 25 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. 
.monday night...northwest winds 10 to 20 kt diminishing to 5 to
10 kt overnight. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.tuesday...southwest winds 10 to 15 kt increasing to 15 to 25 kt
in the afternoon. waves 1 to 2 ft building to 2 to 4 ft. 
.tuesday night...south winds 15 to 25 kt diminishing to 10 to
20 kt. chance of showers. waves 3 to 5 ft. 
.wednesday...southwest winds 15 to 25 kt becoming south to 30 kt.
showers likely with a chance of thunderstorms. waves 4 to 6 ft
occasionally to 8 ft. 
.thursday...northwest winds 10 to 20 kt increasing to 30 kt.
waves 1 to 3 ft.  

$$

fzus63 kmkx 230755
glflm 
expires:202608231515;;213551

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
255 am cdt sun aug 23 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...

isolated showers and storms will remain possible over the lake
through mid morning, with a small chance for a waterspout. 
otherwise, breezy north to northwest winds will persist today due
to being sandwiched between deepening low pressure around 29.7 
inches over the eastern great lakes and high pressure of 30.2 
inches building in from the northwest. winds will eventually 
become lighter by midday monday, persisting into tuesday as the 
high moves overhead. breezy southerly winds will develop later 
tuesday into wednesday as the high exits and low pressure of 29.6 
inches approaches from manitoba.


lmz080-669-671-673-675-777-779-870-872-874-876-878-231515-
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-
255 am cdt sun aug 23 2026

sheboygan wi to pentwater mi south...

.today...northwest winds 15 to 25 kt becoming north. slight
chance of waterspouts this morning. waves 5 to 8 ft occasionally
to 10 ft. 
.tonight...north winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to 5 ft. 
.monday...northwest winds 10 to 20 kt becoming north. waves 2 to
4 ft. 
.monday night...northeast winds 10 to 15 kt backing to southwest.
waves 1 to 3 ft subsiding to 1 to 2 ft. 
.tuesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 2 ft building to 2 to 4 ft. 
.tuesday night...south winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 3 to 5 ft. 
.wednesday...southwest winds 15 to 25 kt increasing to 30 kt.
chance of showers and thunderstorms. waves 4 to 6 ft occasionally
to 8 ft. 
.thursday...northwest winds 10 to 20 kt becoming north. waves
2 to 4 ft.  

$$