fzus61 kcle 040755
glfle 
expires:202608041415;;596104

open lake forecast for lake erie
national weather service cleveland oh
355 am edt tue aug 4 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 30.00 inches over lake erie will weaken on
wednesday as it drifts east ahead of an approaching cold front. 
this front will cross lake erie thursday and friday before
stalling just east of the lakes on saturday. 


lez162>164-041415-
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-
355 am edt tue aug 4 2026

.today...south winds less than 10 knots becoming east. waves
1 foot or less. 
.tonight...east winds less than 10 knots. waves 1 foot or less. 
.wednesday...light and variable winds. waves 1 foot or less. 
.wednesday night...southeast winds 10 knots or less becoming
southwest. waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots. a chance of showers
and thunderstorms during the day, then showers likely with a
chance of thunderstorms thursday night. waves 1 foot or less. 
.friday...southwest winds 10 knots or less. a chance of showers
and thunderstorms friday night. waves 1 foot or less. 
.saturday...southwest winds 5 to 10 knots. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 040752
glfsc 
expires:202608041600;;596096

lake st clair forecast
national weather service detroit/pontiac mi
352 am edt tue aug 4 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 influence lingers across the central
great lakes today as the center of the surface ridge slides
across appalachia into the northeast. meanwhile, a low pressure
system will move into hudson bay from northern ontario as its
attendant cold front tracks into the region from the west. it
briefly stalls out over lake huron wednesday providing the first
opportunity for showers and a few thunderstorms for the latter
half of the week.


lcz460-041600-
lake st clair-
352 am edt tue aug 4 2026

.today...light and variable winds becoming southeast 5 to 10 knots
in the afternoon. sunny. waves 2 feet or less.
.tonight...south winds 10 to 15 knots becoming light and variable.
clear. waves 2 feet or less.
.wednesday...light and variable winds becoming south 5 to 10 knots
in the late morning and afternoon. sunny. waves 2 feet or less.
.wednesday night...south winds 5 to 10 knots veering to the
southwest after midnight. mostly clear. waves 2 feet or less.
.thursday...southwest winds 5 to 10 knots backing to the south in
the evening. partly sunny becoming mostly cloudy. a chance of light
showers. a chance of thunderstorms in the afternoon and evening.
light showers likely in the evening. waves 2 feet or less.
.friday...south winds 5 to 10 knots. partly cloudy. light showers
likely and a chance of thunderstorms. waves 2 feet or less.
.saturday...southwest winds 5 to 10 knots. mostly clear. waves 2
feet or less.

$$

fzus63 kdtx 040752
glflh 
expires:202608041600;;596094

open lake forecast for lake huron
national weather service detroit/pontiac mi
352 am edt tue aug 4 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 influence lingers across the central
great lakes today as the center of the surface ridge slides
across appalachia into the northeast. meanwhile, a low pressure
system will move into hudson bay from northern ontario as its
attendant cold front tracks into the region from the west. it
briefly stalls out over lake huron wednesday providing the first
opportunity for showers and a few thunderstorms for the latter
half of the week.


lhz462>464-041600-
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-
352 am edt tue aug 4 2026

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


$$

fzus63 kmkx 040759
glflm 
expires:202608041515;;596236

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
259 am cdt tue aug 4 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 around 30.0 inches over the great lakes this
morning will gradually move southeastward throughout the day as
low pressure around 29.6 inches moves into the hudson bay,
bringing southwesterly winds to the lake today. gusts of 25-30
kt are expected across the northern two-thirds, with conditions
hazardous to small craft in portions of the nearshore regions
north of port washington this afternoon through this evening.
winds will diminish and become generally light and northwesterly
tonight as a cold front from this low progresses southward
through the lake. thunderstorms are expected along and ahead of
the front. rain and storms remain possible through wednesday
night as this front stalls. high pressure of 30.0 inches will
bring a return to light winds thursday into friday, with low
pressure developing again in northern canada friday into friday
night, bringing a return to southerly winds and chances for
thunderstorms into the weekend.


lmz261-362-364-366-563-565-567-868-041515-
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-
259 am cdt tue aug 4 2026

sheboygan wi to pentwater mi north...

.today...south winds 15 to 25 kt increasing to 30 kt. waves 3 to
5 ft. 
.tonight...southwest winds 15 to 25 kt diminishing to 10 to 20 kt
late in the evening, then backing to northeast 10 to 15 kt after
midnight becoming north late. showers likely with a chance of
thunderstorms in the evening, then chance of showers and
thunderstorms overnight. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday...northeast winds 5 to 10 kt increasing to 10 to
15 kt. chance of showers in the morning. waves 1 to 3 ft
subsiding to 1 to 2 ft. 
.wednesday night...southeast winds 5 to 10 kt becoming east.
chance of showers in the evening. waves 1 ft or less. 
.thursday...southeast winds 10 to 15 kt becoming southwest. waves
1 ft or less. 
.thursday night...south winds 10 to 15 kt becoming southwest
10 to 20 kt. waves 1 to 2 ft. 
.friday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft. 
.saturday...southwest winds 15 to 25 kt. waves 1 to 3 ft.  

$$

fzus63 kmkx 040759
glflm 
expires:202608041515;;596237

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
259 am cdt tue aug 4 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 around 30.0 inches over the great lakes this
morning will gradually move southeastward throughout the day as
low pressure around 29.6 inches moves into the hudson bay,
bringing southwesterly winds to the lake today. gusts of 25-30
kt are expected across the northern two-thirds, with conditions
hazardous to small craft in portions of the nearshore regions
north of port washington this afternoon through this evening.
winds will diminish and become generally light and northwesterly
tonight as a cold front from this low progresses southward
through the lake. thunderstorms are expected along and ahead of
the front. rain and storms remain possible through wednesday
night as this front stalls. high pressure of 30.0 inches will
bring a return to light winds thursday into friday, with low
pressure developing again in northern canada friday into friday
night, bringing a return to southerly winds and chances for
thunderstorms into the weekend.


lmz080-669-671-673-675-777-779-870-872-874-876-878-041515-
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-
259 am cdt tue aug 4 2026

sheboygan wi to pentwater mi south...

.today...south winds 10 to 20 kt increasing to 15 to 25 kt. waves
3 to 5 ft. 
.tonight...south winds 15 to 25 kt diminishing to 10 to 20 kt
late in the evening, then becoming southwest 10 to 15 kt
overnight. chance of showers and thunderstorms in the evening,
then showers likely with a chance of thunderstorms overnight.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.wednesday...west winds 10 to 15 kt becoming southwest 5 to
10 kt. chance of showers in the morning, then chance of showers
and thunderstorms in the afternoon. waves 1 to 3 ft. 
.wednesday night...east winds 5 to 10 kt veering to west. showers
with a chance of thunderstorms in the evening, then chance of
showers overnight. waves 1 to 2 ft. 
.thursday...north winds 5 to 10 kt increasing to 10 to 15 kt.
chance of showers in the morning. waves 1 ft or less.
.thursday night...east winds 5 to 10 kt veering to southwest.
waves 1 ft or less. 
.friday...southwest winds 5 to 10 kt becoming south 10 to 20 kt.
waves 1 to 2 ft. 
.saturday...southwest winds 10 to 20 kt becoming south. waves
1 to 3 ft.  

$$