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(1/11)
Latest Great Lakes Marine Forecast by KBUF
Issued 9/2/2026 10:02 PM America/New_York.
Valid through 9/3/2026 5:00 AM America/New_York.
fzus61 kbuf 030202
glflo
expires:202609030900;;806834
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt wed sep 2 2026
for waters beyond five nautical miles of shore on lake ontario
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 29.7 inch low continues to move eastward across
northern quebec and allows a cold front to sweep eastward across
lake ontario tonight. behind the front, an extensive high pressure
ridge averaging 30.1 inches builds from northern ontario and
vicinity through this monday.
loz063>065-030900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt wed sep 2 2026
...tornado watch 645 in effect until 11 pm edt this evening...
.rest of tonight...southwest winds 10 to 15 knots becoming west.
thunderstorms likely with a chance of showers late this evening,
then showers with a chance of thunderstorms after midnight. a
chance of showers late. some thunderstorms may produce strong
winds late this evening. waves 1 to 2 feet.
.thursday...west winds 5 to 10 knots. a chance of showers early.
waves 1 to 2 feet.
.thursday night...west winds 5 to 10 knots becoming northwest.
waves 1 to 2 feet.
.friday...northwest winds 10 knots or less becoming west. waves
1 foot or less.
.friday night...west winds 5 to 10 knots becoming north. waves
1 to 2 feet.
.saturday...north winds 5 to 10 knots becoming northeast. waves
2 feet or less.
.sunday...northeast winds 10 knots or less becoming southeast.
waves 1 foot or less.
.monday...south winds 10 knots or less becoming southwest 10 to
15 knots. waves 2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(2/11)
Latest Great Lakes Marine Forecast by KBUF
Issued 9/2/2026 10:02 PM America/New_York.
Valid through 9/3/2026 5:00 AM America/New_York.
fzus61 kbuf 030202
glflo
expires:202609030900;;806833
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt wed sep 2 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a 29.7 inch low continues to move eastward across
northern quebec and allows a cold front to sweep eastward across
lake ontario tonight. behind the front, an extensive high pressure
ridge averaging 30.1 inches builds from northern ontario and
vicinity through this monday.
loz062-030900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt wed sep 2 2026
...tornado watch 645 in effect until 11 pm edt this evening...
.rest of tonight...southwest winds 5 to 10 knots becoming west.
thunderstorms likely with a chance of showers late this evening,
then showers likely with a chance of thunderstorms after
midnight. a chance of showers late. some thunderstorms may
produce strong winds late this evening. waves around 1 foot.
.thursday...west winds 10 knots or less becoming southwest. waves
1 foot or less.
.thursday night...west winds 10 knots or less becoming northwest.
waves 1 foot or less.
.friday...northwest winds 10 knots or less becoming west. waves
1 foot or less.
.friday night...west winds 5 to 10 knots becoming north. waves
1 foot or less.
.saturday...north winds 10 knots or less becoming northeast.
waves 1 foot or less.
.sunday...northeast winds 10 knots or less becoming southeast.
waves 1 foot or less.
.monday...southeast winds 10 knots or less. waves 1 foot or less.
winds and waves higher in and near thunderstorms.
$$
(3/11)
Latest Great Lakes Marine Forecast by KCLE
Issued 9/2/2026 11:09 PM America/New_York.
Valid through 9/3/2026 4:15 AM America/New_York.
fzus61 kcle 030309
glfle
expires:202609030815;;809416
open lake forecast for lake erie
national weather service cleveland oh
1109 pm edt wed sep 2 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 frontal boundary will remain north of lake erie tonight into
thursday before being pushed south as a cold front on thursday
evening. a ridge averaging 30.00 inches will build from the north
on friday and persist through the weekend into early next week.
lez061-168-169-030815-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
1109 pm edt wed sep 2 2026
.rest of tonight...southwest winds 10 to 15 knots becoming west.
a chance of showers and thunderstorms. some thunderstorms may be
severe with damaging winds and large hail late this evening.
waves 1 to 3 feet.
.thursday...northwest winds 5 to 10 knots becoming west. a chance
of showers with a slight chance of thunderstorms in the morning,
then a slight chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet.
.thursday night...west winds 10 knots or less becoming north. a
chance of showers and thunderstorms in the evening, then a chance
of showers overnight. waves 1 foot or less.
.friday...north winds less than 10 knots becoming northwest. a
chance of showers. waves 1 foot or less.
.friday night...west winds 10 knots or less becoming northeast.
waves 1 foot or less.
.saturday...northeast winds 5 to 10 knots becoming east. waves
1 foot or less.
.sunday...east winds 5 to 10 knots. waves 2 feet or less.
.monday...southeast winds 10 knots or less. waves 2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(4/11)
Latest Great Lakes Marine Forecast by KCLE
Issued 9/2/2026 11:09 PM America/New_York.
Valid through 9/3/2026 4:15 AM America/New_York.
fzus61 kcle 030309
glfle
expires:202609030815;;809415
open lake forecast for lake erie
national weather service cleveland oh
1109 pm edt wed sep 2 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 frontal boundary will remain north of lake erie tonight into
thursday before being pushed south as a cold front on thursday
evening. a ridge averaging 30.00 inches will build from the north
on friday and persist through the weekend into early next week.
lez164>167-030815-
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-
1109 pm edt wed sep 2 2026
.rest of tonight...southwest winds 15 to 20 knots becoming west
10 to 15 knots. a slight chance of showers and thunderstorms late
this evening, then a chance of showers and thunderstorms after
midnight. waves 1 to 3 feet.
.thursday...west winds 5 to 10 knots becoming southwest. a chance
of showers and thunderstorms early, then a slight chance of
showers and thunderstorms. a chance of showers and thunderstorms
late. waves 1 to 2 feet.
.thursday night...southeast winds 5 to 10 knots becoming
northeast. a chance of showers and thunderstorms in the evening,
then showers likely with a chance of thunderstorms overnight.
waves 1 foot or less.
.friday...north winds 10 knots or less. showers likely in the
morning, then a chance of showers in the afternoon. waves 1 foot
or less.
.friday night...north winds 5 to 10 knots becoming northeast.
waves 2 feet or less.
.saturday...northeast winds 5 to 15 knots becoming east. waves
1 to 2 feet.
.sunday...east winds 5 to 15 knots. waves 2 feet or less.
.monday...southeast winds 5 to 10 knots. waves 2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(5/11)
Latest Great Lakes Marine Forecast by KCLE
Issued 9/2/2026 11:09 PM America/New_York.
Valid through 9/3/2026 4:15 AM America/New_York.
fzus61 kcle 030309
glfle
expires:202609030815;;809414
open lake forecast for lake erie
national weather service cleveland oh
1109 pm edt wed sep 2 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 frontal boundary will remain north of lake erie tonight into
thursday before being pushed south as a cold front on thursday
evening. a ridge averaging 30.00 inches will build from the north
on friday and persist through the weekend into early next week.
lez162-163-030815-
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-
1109 pm edt wed sep 2 2026
.rest of tonight...southwest winds 10 to 15 knots. a slight
chance of showers and thunderstorms after midnight. a chance of
showers and thunderstorms late. waves 1 to 2 feet.
.thursday...west winds 5 to 10 knots becoming southeast. a chance
of showers and thunderstorms early, then a slight chance of
showers and thunderstorms late in the morning. a chance of
showers and thunderstorms in the afternoon. waves around 1 foot.
.thursday night...southeast winds 5 to 10 knots becoming east. a
chance of showers and thunderstorms in the evening, then showers
likely with a chance of thunderstorms overnight. waves 1 foot or
less.
.friday...northeast winds 10 knots or less. a chance of showers.
waves 1 foot or less.
.friday night...northeast winds 10 knots or less. a chance of
showers. waves 1 foot or less.
.saturday...northeast winds 5 to 10 knots. waves 1 to 2 feet.
.sunday...east winds 5 to 10 knots. waves 1 to 2 feet.
.monday...east winds 5 to 10 knots becoming southeast. waves
around 1 foot.
winds and waves higher in and near thunderstorms.
$$
(6/11)
Latest Great Lakes Marine Forecast by KCLE
Issued 9/2/2026 9:18 PM America/New_York.
Valid through 9/3/2026 4:15 AM America/New_York.
fzus61 kcle 030118
glfle
expires:202609030815;;806015
open lake forecast for lake erie
national weather service cleveland oh
918 pm edt wed sep 2 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 frontal boundary will remain north of lake erie tonight into
thursday before being pushed south as a cold front on thursday
evening. a ridge averaging 30.00 inches will build from the north
on friday and persist through the weekend into early next week.
lez061-030815-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
918 pm edt wed sep 2 2026
...tornado watch 645 in effect until 11 pm edt this evening...
.rest of tonight...southwest winds 10 to 15 knots becoming west.
showers with thunderstorms likely late this evening, then showers
likely with a chance of thunderstorms after midnight. a chance of
showers and thunderstorms late. some thunderstorms may be severe
with damaging winds, large hail, and tornadoes late this evening.
waves 1 to 2 feet.
.thursday...west winds 5 to 10 knots. a chance of showers with a
slight chance of thunderstorms early, then a chance of showers
late in the morning. a slight chance of showers and thunderstorms
in the afternoon. waves around 1 foot.
.thursday night...southwest winds 10 knots or less becoming
north. a chance of showers and thunderstorms in the evening, then
a chance of showers overnight. waves 1 foot or less.
.friday...northeast winds less than 10 knots. a chance of
showers. waves 1 foot or less.
.friday night...west winds 10 knots or less becoming northeast.
waves 1 foot or less.
.saturday...northeast winds 5 to 10 knots becoming east. waves
1 foot or less.
.sunday...northeast winds 5 to 10 knots becoming southeast. waves
1 foot or less.
.monday...southeast winds 10 knots or less becoming south. waves
1 foot or less.
winds and waves higher in and near thunderstorms.
$$
(7/11)
Latest Great Lakes Marine Forecast by KCLE
Issued 9/2/2026 9:18 PM America/New_York.
Valid through 9/3/2026 4:15 AM America/New_York.
fzus61 kcle 030118
glfle
expires:202609030815;;806014
open lake forecast for lake erie
national weather service cleveland oh
918 pm edt wed sep 2 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 frontal boundary will remain north of lake erie tonight into
thursday before being pushed south as a cold front on thursday
evening. a ridge averaging 30.00 inches will build from the north
on friday and persist through the weekend into early next week.
lez168-169-030815-
geneva-on-the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
918 pm edt wed sep 2 2026
...severe thunderstorm watch 646 in effect until midnight edt
tonight...
.rest of tonight...southwest winds 10 to 15 knots becoming west.
a chance of showers and thunderstorms. some thunderstorms may be
severe with damaging winds and large hail late this evening.
waves 1 to 3 feet.
.thursday...northwest winds 5 to 10 knots becoming west. a chance
of showers with a slight chance of thunderstorms in the morning,
then a slight chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet.
.thursday night...west winds 10 knots or less becoming north. a
chance of showers and thunderstorms in the evening, then showers
likely overnight. waves 1 foot or less.
.friday...north winds 10 knots or less becoming northwest. a
chance of showers. waves 1 foot or less.
.friday night...west winds 10 knots or less becoming northeast.
waves 1 foot or less.
.saturday...northeast winds 5 to 10 knots becoming east. waves
1 foot or less.
.sunday...east winds 5 to 10 knots. waves 2 feet or less.
.monday...southeast winds 10 knots or less. waves 2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(8/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 9/2/2026 10:08 PM America/New_York.
Valid through 9/3/2026 6:15 AM America/New_York.
fzus63 kdtx 030208
glfsc
expires:202609031015;;807095
lake st clair forecast
national weather service detroit/pontiac mi
1008 pm edt wed sep 2 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...a few remaining thunderstorms are passing through a
very muggy air mass tonight as a weak cold front drops
southward through region. light wind and thunderstorm chances
persist as the front stalls over the southern great lakes through
late week.
lcz460-031015-
lake st clair-
1008 pm edt wed sep 2 2026
.rest of tonight...southwest winds 5 to 10 knots veering to the west
early in the morning. partly cloudy. a chance of showers and
thunderstorms. waves 2 feet or less.
.thursday...light and variable winds becoming southeast 5 to 10
knots in the afternoon. partly sunny. a chance of showers and
thunderstorms early in the morning. a chance of showers and
thunderstorms in the afternoon. waves 2 feet or less.
.thursday night...south winds 5 to 10 knots backing to the northeast
in the late evening and overnight. partly cloudy becoming mostly
cloudy. a chance of thunderstorms early in the evening. a chance of
light showers. light showers likely after midnight. waves 2 feet or
less.
.friday...light and variable winds. mostly cloudy. light showers
likely until late afternoon. a chance of light showers early in the
afternoon. waves 2 feet or less.
.friday night...northeast winds 5 to 10 knots. partly cloudy. waves
2 feet or less.
.saturday...northeast winds 5 to 10 knots increasing to 10 to 15
knots in the evening. partly cloudy then clearing. waves 2 feet or
less.
.sunday...east winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.monday...southeast winds 5 to 10 knots. mostly clear. waves 2 feet
or less.
$$
(9/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 9/2/2026 10:00 PM America/New_York.
Valid through 9/3/2026 6:00 AM America/New_York.
fzus63 kdtx 030200
glflh
expires:202609031000;;806668
open lake forecast for lake huron
national weather service detroit/pontiac mi
1000 pm edt wed sep 2 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...a few remaining thunderstorms are passing through a
very muggy air mass tonight as a weak cold front drops
southward through region. light wind and thunderstorm chances
persist as the front stalls over the southern great lakes through
late week.
lhz463-464-031000-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
1000 pm edt wed sep 2 2026
.rest of tonight...northeast winds 5 to 10 knots this evening
becoming light and variable. a chance of showers and
thunderstorms. waves 2 feet or less.
.thursday...light and variable winds becoming northeast 5 to
10 knots late in the afternoon. a chance of showers in the
morning. waves 2 feet or less.
.thursday night...northeast winds 5 to 10 knots early in the
evening becoming light and variable. a chance of showers after
midnight. waves 2 feet or less.
.friday...light and variable winds becoming north 5 to 10 knots
in the late morning and afternoon. a chance of showers. waves
2 feet or less.
.friday night...northeast winds 5 to 10 knots. waves 2 feet or
less.
.saturday...northeast winds 5 to 10 knots becoming north 10 to
15 knots late in the afternoon...then becoming northeast 5 to
10 knots late in the evening. waves 2 feet or less.
.sunday...east winds 5 to 10 knots backing to the northeast early
in the evening...then veering to the east by midnight. waves
2 feet or less.
.monday...southeast winds 5 to 10 knots backing to the east .
waves 2 feet or less.
$$
(10/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 9/2/2026 10:00 PM America/New_York.
Valid through 9/3/2026 6:00 AM America/New_York.
fzus63 kdtx 030200
glflh
expires:202609031000;;806667
open lake forecast for lake huron
national weather service detroit/pontiac mi
1000 pm edt wed sep 2 2026
for waters beyond five nautical miles off shore on lake huron
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a few remaining thunderstorms are passing through a
very muggy air mass tonight as a weak cold front drops
southward through region. light wind and thunderstorm chances
persist as the front stalls over the southern great lakes through
late week.
lhz363-462-031000-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
1000 pm edt wed sep 2 2026
.rest of tonight...light and variable winds. waves 2 feet or
less.
.thursday...light and variable winds. waves 2 feet or less.
.thursday night...light and variable winds. a chance of showers
after midnight. waves 2 feet or less.
.friday...light and variable winds. waves 2 feet or less.
.friday night...light and variable winds becoming north 5 to
10 knots after midnight. waves 2 feet or less.
.saturday...northeast winds 5 to 10 knots. waves 2 feet or less.
.sunday...light and variable winds becoming east 5 to 10 knots by
midnight. waves 2 feet or less.
.monday...southeast winds 5 to 10 knots increasing to 10 to
15 knots by midnight. waves 2 feet or less.
$$
(11/11)
Latest Great Lakes Marine Forecast by KDTX
Issued 9/2/2026 10:00 PM America/New_York.
Valid through 9/3/2026 6:00 AM America/New_York.
fzus63 kdtx 030200
glflh
expires:202609031000;;806666
open lake forecast for lake huron
national weather service detroit/pontiac mi
1000 pm edt wed sep 2 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...a few remaining thunderstorms are passing through a
very muggy air mass tonight as a weak cold front drops
southward through region. light wind and thunderstorm chances
persist as the front stalls over the southern great lakes through
late week.
lhz361-362-031000-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
1000 pm edt wed sep 2 2026
.rest of tonight...light and variable winds. waves 2 feet or
less.
.thursday...northwest winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less.
.thursday night...light and variable winds. waves 2 feet or less.
.friday...light and variable winds. waves 2 feet or less.
.friday night...light and variable winds. waves nearly calm.
.saturday...east winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less.
.sunday...light and variable winds becoming southeast 5 to
10 knots . waves 2 feet or less.
.monday...south winds 5 to 10 knots backing to the east early in
the evening...then becoming southeast 10 to 15 knots by midnight.
waves 2 feet or less.
$$
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