(1/6)
Latest Great Lakes Marine Forecast by KCLE
Issued 8/3/2026 9:32 PM America/New_York.
Valid through 8/4/2026 4:30 AM America/New_York.
fzus61 kcle 040132
glfle
expires:202608040830;;581720
open lake forecast for lake erie
national weather service cleveland oh
932 pm edt mon aug 3 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 30.00 inches over the southern great lakes tonight
will weaken to a ridge averaging 29.90 inches by midweek as it
gradually drifts east ahead of an approaching cold front. this
front will cross lake erie thursday and stall nearby through
friday.
lez162-163-040830-
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-
932 pm edt mon aug 3 2026
.overnight...southeast winds 10 knots or less becoming
south. waves 1 foot or less.
.tuesday...southwest winds 10 knots or less becoming southeast.
waves 1 foot or less.
.tuesday night...southeast winds less than 10 knots becoming
south. waves 1 foot or less.
.wednesday...southwest winds less than 10 knots becoming
southeast. 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 becoming west. a chance
of showers and thunderstorms. waves 1 foot or less.
.friday...west winds 10 knots or less becoming southwest. 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.
$$
(2/6)
Latest Great Lakes Marine Forecast by KCLE
Issued 8/3/2026 9:32 PM America/New_York.
Valid through 8/4/2026 4:30 AM America/New_York.
fzus61 kcle 040132
glfle
expires:202608040830;;581721
open lake forecast for lake erie
national weather service cleveland oh
932 pm edt mon aug 3 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 30.00 inches over the southern great lakes tonight
will weaken to a ridge averaging 29.90 inches by midweek as it
gradually drifts east ahead of an approaching cold front. this
front will cross lake erie thursday and stall nearby through
friday.
lez164>168-040830-
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-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
932 pm edt mon aug 3 2026
.overnight...north winds 10 knots or less becoming
southeast. waves 2 feet or less.
.tuesday...south winds less than 10 knots becoming northeast.
waves 1 foot or less.
.tuesday night...northeast winds less than 10 knots becoming
south. waves 1 foot or less.
.wednesday...south winds 10 knots or less becoming northwest.
waves 1 foot or less.
.wednesday night...northeast winds 10 knots or less becoming
south. waves 1 foot or less.
.thursday...southwest winds 5 to 10 knots. 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
during the day, then a chance of showers and thunderstorms friday
night. waves 1 foot or less.
.saturday...southwest winds 10 knots or less. waves 2 feet or
less.
winds and waves higher in and near thunderstorms.
$$
(3/6)
Latest Great Lakes Marine Forecast by KDTX
Issued 8/3/2026 9:10 PM America/New_York.
Valid through 8/4/2026 5:15 AM America/New_York.
fzus63 kdtx 040110
glfsc
expires:202608040915;;581410
lake st clair forecast
national weather service detroit/pontiac mi
910 pm edt mon aug 3 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, 30.00 inches, is firmly established
across the central great lakes this evening offering dry weather
and light winds through mid-week. a weak cold front will move in
from the west and briefly stall out over lake huron wednesday.
this provides the first opportunity for showers and a few
thunderstorms for the latter half of the week.
lcz460-040915-
lake st clair-
910 pm edt mon aug 3 2026
.rest of tonight...east winds 5 to 10 knots this evening becoming
light and variable...then becoming south 5 to 10 knots early in the
morning. clear. waves 2 feet or less.
.tuesday...light and variable winds becoming south 5 to 10 knots in
the late morning and early afternoon...then becoming southeast 10 to
15 knots late in the afternoon. sunny. waves 2 feet or less.
.tuesday night...south winds 10 to 15 knots diminishing to 5 to 10
knots in the late evening and overnight. clear. waves 2 feet or
less.
.wednesday...light and variable winds becoming south 5 to 10 knots
in the late morning and afternoon. mostly sunny. waves 2 feet or
less.
.wednesday night...south winds 5 to 10 knots. mostly clear. waves 2
feet or less.
.thursday...southwest winds 5 to 10 knots. partly sunny becoming
mostly cloudy. light showers likely in the afternoon. a chance of
thunderstorms in the afternoon and evening. a chance of showers in
the evening. waves 2 feet or less.
.friday...south winds 5 to 10 knots. partly cloudy. waves 2 feet or
less.
.saturday...south winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
$$
(4/6)
Latest Great Lakes Marine Forecast by KDTX
Issued 8/3/2026 9:10 PM America/New_York.
Valid through 8/4/2026 5:15 AM America/New_York.
fzus63 kdtx 040110
glflh
expires:202608040915;;581394
open lake forecast for lake huron
national weather service detroit/pontiac mi
910 pm edt mon aug 3 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, 30.00 inches, is firmly established
across the central great lakes this evening offering dry weather
and light winds through mid-week. a weak cold front will move in
from the west and briefly stall out over lake huron wednesday.
this provides the first opportunity for showers and a few
thunderstorms for the latter half of the week.
lhz462>464-040915-
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-
910 pm edt mon aug 3 2026
.rest of tonight...light and variable winds becoming south 5 to
10 knots after midnight. waves 2 feet or less.
.tuesday...south winds 5 to 10 knots becoming southeast 10 to
15 knots late in the afternoon. waves 2 feet or less.
.tuesday night...south winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 1 to 3 feet.
.wednesday...south winds 5 to 10 knots backing to the southeast
early in the afternoon. a chance of showers in the afternoon.
waves 2 feet or less.
.wednesday night...southeast winds 5 to 10 knots. a chance of
showers. waves 2 feet or less.
.thursday...south winds 5 to 10 knots becoming light and
variable. showers likely. a chance of thunderstorms late in the
morning. a chance of showers late in the afternoon. waves 2 feet
or less.
.friday...light and variable winds becoming east 5 to 10 knots
early in the evening...then veering to the south by midnight.
waves 2 feet or less.
.saturday...southwest winds 5 to 10 knots backing to the south .
waves 2 feet or less.
$$
(5/6)
Latest Great Lakes Marine Forecast by KMKX
Issued 8/3/2026 8:45 PM US/Central.
Valid through 8/4/2026 4:15 AM US/Central.
fzus63 kmkx 040145
glflm
expires:202608040915;;582114
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
845 pm cdt mon aug 3 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...
30.1 inch high pressure will shift eastward tonight into tuesday,
with winds shifting southerly. a cold front moves into the
western great lakes late tuesday afternoon through wednesday,
bringing a brief north-northwest wind shift across the open
waters. periods of showers and storms will accompany the front,
with severe weather appearing unlikely at this time. winds will
trend variable once more wednesday evening through thursday, when
30.0 inch high pressure is forecast to build back into the
western great lakes.
a prolonged period of south-southwest winds will become established
across lake michigan thursday night through sunday as 30.1 inch
high pressure lingers off the mid-atlantic coast and 29.6 inch
low pressure stalls over the hudson bay. shower and storm chances
return to the forecast saturday night into the beginning of next
week.
lmz080-669-671-673-675-777-779-870-872-874-876-878-040915-
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-
845 pm cdt mon aug 3 2026
sheboygan wi to pentwater mi south...
.rest of tonight...southeast winds 10 to 15 kt becoming south.
waves 1 to 2 ft.
.tuesday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 1 to 3 ft building to 3 to 5 ft.
.tuesday night...south winds 15 to 25 kt diminishing to 10 to
20 kt late in the evening, then becoming southwest after midnight
diminishing to 10 to 15 kt late. chance of showers and
thunderstorms. waves 3 to 5 ft subsiding to 2 to 4 ft.
.wednesday...southwest winds 10 to 15 kt becoming south. showers
likely in the morning, then chance of showers in the afternoon.
waves 1 to 3 ft.
.wednesday night...east winds 5 to 10 kt veering to south.
showers with a chance of thunderstorms in the evening, then
showers overnight. waves 1 ft or less.
.thursday...northwest winds 5 to 10 kt becoming north 10 to
15 kt. chance of showers. waves 1 ft or less.
.thursday night...northeast winds 5 to 10 kt backing to
southwest. waves 1 ft or less.
.friday...southwest winds 10 to 15 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.
$$
(6/6)
Latest Great Lakes Marine Forecast by KMKX
Issued 8/3/2026 8:45 PM US/Central.
Valid through 8/4/2026 4:15 AM US/Central.
fzus63 kmkx 040145
glflm
expires:202608040915;;582113
open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
845 pm cdt mon aug 3 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...
30.1 inch high pressure will shift eastward tonight into tuesday,
with winds shifting southerly. a cold front moves into the
western great lakes late tuesday afternoon through wednesday,
bringing a brief north-northwest wind shift across the open
waters. periods of showers and storms will accompany the front,
with severe weather appearing unlikely at this time. winds will
trend variable once more wednesday evening through thursday, when
30.0 inch high pressure is forecast to build back into the
western great lakes.
a prolonged period of south-southwest winds will become established
across lake michigan thursday night through sunday as 30.1 inch
high pressure lingers off the mid-atlantic coast and 29.6 inch
low pressure stalls over the hudson bay. shower and storm chances
return to the forecast saturday night into the beginning of next
week.
lmz261-362-364-366-563-565-567-868-040915-
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-
845 pm cdt mon aug 3 2026
sheboygan wi to pentwater mi north...
.rest of tonight...south winds 10 to 20 kt. waves 2 to 4 ft.
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
2 to 4 ft building to 4 to 6 ft occasionally to 8 ft.
.tuesday night...southwest winds 15 to 25 kt diminishing to 10 to
20 kt late in the evening, then becoming west 10 to 15 kt after
midnight becoming northwest late. showers likely with a chance of
thunderstorms in the evening, then chance of showers overnight.
waves 3 to 5 ft subsiding to 2 to 4 ft.
.wednesday...northeast winds 10 to 15 kt backing to southwest.
chance of showers in the morning. waves 1 to 3 ft.
.wednesday night...southeast winds 5 to 10 kt becoming east.
chance of showers overnight. waves 1 ft or less.
.thursday...east winds 10 to 15 kt veering to southwest 10 to
20 kt. waves 1 to 2 ft.
.thursday night...south winds 10 to 20 kt becoming southwest.
waves 1 to 3 ft.
.friday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft.
.saturday...southwest winds 10 to 20 kt increasing to 15 to
25 kt. waves 2 to 4 ft.
$$
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