fzus61 kcle 100150
glfle 
expires:202608100815;;912022

open lake forecast for lake erie
national weather service cleveland oh
950 pm edt sun aug 9 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 warm front will lift across lake erie this evening. three weak 
low pressure systems 29.90 inches will move through the region 
late tonight through wednesday. high pressure 30.00 inches will 
build into the region starting on thursday.


lez162>164-100815-
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-
950 pm edt sun aug 9 2026

.rest of tonight...south winds 10 to 15 knots becoming southwest
15 to 20 knots. showers likely with a chance of thunderstorms
late this evening, then a chance of showers and thunderstorms
after midnight. a chance of showers with a slight chance of
thunderstorms late. waves 2 feet or less. 
.monday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of showers with a slight chance of
thunderstorms early, then a slight chance of showers late in the
morning. a slight chance of showers and thunderstorms late. waves
1 to 3 feet subsiding to 1 foot or less. 
.monday night...west winds 5 to 10 knots. a chance of showers and
thunderstorms. waves 1 foot or less. 
.tuesday...southwest winds 5 to 10 knots becoming east. a chance
of showers and thunderstorms in the morning, then a chance of
showers in the afternoon. waves 1 foot or less. 
.tuesday night...southeast winds 5 to 10 knots becoming
southwest. showers likely with a chance of thunderstorms in the
evening, then a chance of showers overnight. waves 1 foot or
less. 
.wednesday...southwest winds 5 to 10 knots becoming northwest.
showers likely with a chance of thunderstorms during the day,
then a chance of showers wednesday night. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots becoming northeast. waves
2 feet or less. 
.friday...northeast winds 5 to 10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 100141
glfsc 
expires:202608100945;;911753

lake st clair forecast
national weather service detroit/pontiac mi
941 pm edt sun aug 9 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...this evening through early next week an active pattern
with a stalled frontal boundary draped over the southern great
lakes region brings back chances for organized thunderstorms to
the region. by the end of next week, high pressure around 30.1
inches builds south from central canada.


lcz460-100945-
lake st clair-
941 pm edt sun aug 9 2026

.rest of tonight...southwest winds 10 to 15 knots. mostly cloudy
with showers likely and a chance of thunderstorms. waves 2 feet or
less.
.monday...west winds 10 to 15 knots diminishing to 5 to 10 knots in
the afternoon. mostly cloudy in the morning then clearing. waves 2
feet or less.
.monday night...northwest winds 5 to 10 knots veering to the north
in the late evening and overnight. partly cloudy. a chance of light
showers after midnight. waves 2 feet or less.
.tuesday...east winds 5 to 10 knots. partly sunny. a chance of light
showers early in the afternoon. waves 2 feet or less.
.tuesday night...south winds 5 to 10 knots. partly cloudy. a chance
of light showers . waves 2 feet or less.
.wednesday...west winds 5 to 10 knots veering to the northwest in
the evening. partly sunny with a chance of light showers in the
morning...then partly cloudy with a chance of showers and
thunderstorms in the afternoon and evening. waves 2 feet or less.
.thursday...northeast winds 10 to 15 knots. mostly clear. waves 2
feet or less.
.friday...northeast winds 10 to 15 knots. mostly clear. waves 2 feet
or less.

$$

fzus63 kdtx 100141
glflh 
expires:202608100945;;911741

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt sun aug 9 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...this evening through early next week an active pattern
with a stalled frontal boundary draped over the southern great
lakes region brings back chances for organized thunderstorms to
the region. by the end of next week, high pressure around 30.1
inches builds south from central canada.


lhz462>464-100945-
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-
941 pm edt sun aug 9 2026

.rest of tonight...south winds 10 to 15 knots veering to the west
early in the morning. showers likely this evening...then a chance
of showers after midnight. waves 1 to 3 feet. 
.monday...west winds 5 to 10 knots. waves 2 feet or less. 
.monday night...north winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.tuesday...light and variable winds becoming northeast 5 to
10 knots early in the afternoon. waves 2 feet or less. 
.tuesday night...east winds 5 to 10 knots veering to the
southeast in the late evening and overnight. waves 2 feet or
less. 
.wednesday...south winds 5 to 10 knots. a chance of showers.
waves 2 feet or less. 
.thursday...northwest winds 10 to 15 knots. waves 1 to 3 feet. 
.friday...north winds 5 to 10 knots. waves 1 to 3 feet. 


$$

fzus63 kmkx 100206
glflm 
expires:202608100915;;912378

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
906 pm cdt sun aug 9 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...

winds will become light and mostly variable ahead of a sagging 
front. the front will move southward down the lake into monday, 
leading to light northerly winds through the morning on monday and
light and variable winds monday afternoon and evening. light and 
variable winds then persist into tuesday as high pressure around 
30.0 inches remains in place north of a frontal boundary parked 
over the corn belt. otherwise an unsettled weather pattern has set
up over the upper great lakes for the start of this week where 
weak waves of low pressure will cross the region and produce 
rounds of thunderstorms at times primarily a risk for the south 
half.


lmz261-362-364-366-563-565-567-868-100915-
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-
906 pm cdt sun aug 9 2026

sheboygan wi to pentwater mi north...

.rest of tonight...southwest winds 10 to 15 kt becoming west 5 to
10 kt. patchy fog overnight. slight chance of showers and
thunderstorms overnight. waves 1 to 3 ft. 
.monday...northwest winds 10 to 15 kt backing to south. patchy
fog in the morning. waves 1 to 2 ft. 
.monday night...south winds 10 to 15 kt becoming southeast. waves
1 to 2 ft. 
.tuesday...south winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 ft or less. 
.tuesday night...north winds 5 to 10 kt. chance of showers
overnight. waves 1 ft or less. 
.wednesday...northwest winds 5 to 10 kt becoming north 10 to
20 kt in the afternoon. waves 1 to 2 ft. 
.wednesday night...north winds 10 to 15 kt. waves 1 to 2 ft.
.thursday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 2 ft. 
.friday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 100206
glflm 
expires:202608100915;;912379

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
906 pm cdt sun aug 9 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...

winds will become light and mostly variable ahead of a sagging 
front. the front will move southward down the lake into monday, 
leading to light northerly winds through the morning on monday and
light and variable winds monday afternoon and evening. light and 
variable winds then persist into tuesday as high pressure around 
30.0 inches remains in place north of a frontal boundary parked 
over the corn belt. otherwise an unsettled weather pattern has set
up over the upper great lakes for the start of this week where 
weak waves of low pressure will cross the region and produce 
rounds of thunderstorms at times primarily a risk for the south 
half.


lmz080-669-671-673-675-777-779-870-872-874-876-878-100915-
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-
906 pm cdt sun aug 9 2026

sheboygan wi to pentwater mi south...

.rest of tonight...south winds 15 to 25 kt becoming southwest
10 to 20 kt. chance of showers and thunderstorms. patchy fog
overnight. waves 1 to 3 ft. 
.monday...northwest winds 10 to 15 kt veering to northeast.
patchy fog in the morning. slight chance of showers and
thunderstorms in the afternoon. waves 1 to 3 ft subsiding to 1 to
2 ft. 
.monday night...northeast winds 5 to 10 kt becoming east. waves
1 ft or less. 
.tuesday...southeast winds 10 to 15 kt. chance of showers. waves
1 to 2 ft. 
.tuesday night...northeast winds 5 to 10 kt. chance of showers.
waves 1 ft or less. 
.wednesday...north winds 5 to 10 kt becoming northwest 10 to
15 kt. chance of showers in the morning. waves 1 to 2 ft. 
.wednesday night...north winds 10 to 15 kt. waves 1 to 2 ft.
.thursday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft. 
.friday...northeast winds 10 to 15 kt becoming north 10 to 20 kt.
waves 1 to 3 ft.  

$$

fzus63 kmkx 091714
glflm 
expires:202608100300;;890579

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1213 pm cdt sun aug 9 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...

winds today will be southerly and breezy, then grow light and
variable for a time tonight ahead of a cold front. the front will
move southward down the lake into monday, leading to light
northerly winds through the morning on monday and light and
variable winds monday afternoon and evening. light and variable
winds then persist into tuesday as high pressure of 30.0 inches
remains in place north of a frontal boundary parked over the corn
belt. otherwise an unsettled weather pattern has set up over the 
upper great lakes this week where weak waves of low pressure will
cross the region and produce rounds of thunderstorms at times
primarily a risk for the south half. the first round of weakening
storms should arrive late morning and early afternoon, and 
additional storms are possible there sunday night and beyond.


lmz080-779-870-872-874-876-878-100300-
lake michigan from michigan city in to st. joseph mi 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-
1213 pm cdt sun aug 9 2026

wilmette harbor il to st. joseph mi south...

.tonight...south winds 10 to 20 kt becoming west. chance of
showers and thunderstorms. patchy fog overnight. waves 2 to 4 ft
subsiding to 1 to 3 ft. 
.monday...northwest winds 10 to 15 kt becoming northeast. patchy
dense fog in the morning. waves 1 to 2 ft. 
.monday night...northeast winds 5 to 10 kt. chance of showers.
waves 1 ft or less. 
.tuesday...east winds 5 to 10 kt becoming northeast 10 to 15 kt.
chance of showers. waves 1 ft or less. 
.tuesday night...northeast winds 5 to 10 kt. chance of showers
and thunderstorms. waves 1 ft or less. 
.wednesday...north winds 5 to 10 kt becoming northwest 10 to
15 kt. waves 1 ft or less. 
.thursday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft.  

$$