(1/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 9/21/2026 4:02 PM America/New_York.
Valid through 9/21/2026 11:00 PM America/New_York.
fzus61 kbuf 212002
glflo
expires:202609220300;;834937
open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt mon sep 21 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...an expansive 30.6 inch high will remain centered from
eastern ontario province to southern quebec through saturday while
gradually weakening to 30.3 inches late this week. an elongated 29.6
inch low well offshore of the east coast friday is forecast to
strengthen to 29.2 inches as it moves to just off the southern new
england coast saturday night through sunday.
loz062-220300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt mon sep 21 2026
.tonight...northeast winds 15 to 25 knots. waves 2 to 4 feet
building to 5 to 7 feet. waves occasionally around 9 feet.
.tuesday...northeast winds 20 to 25 knots becoming east. waves
5 to 8 feet. waves occasionally around 10 feet.
.tuesday night...east winds 15 to 25 knots. waves 5 to 8 feet.
waves occasionally around 10 feet.
.wednesday...east winds 15 to 20 knots. waves 3 to 6 feet.
.wednesday night...east winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet.
.thursday...east winds 10 to 15 knots becoming northeast. waves
1 to 3 feet.
.friday...northeast winds 5 to 15 knots becoming north. waves
1 to 3 feet.
.saturday...north winds 5 to 15 knots. waves 1 to 3 feet.
$$
(2/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 9/21/2026 4:02 PM America/New_York.
Valid through 9/21/2026 11:00 PM America/New_York.
fzus61 kbuf 212002
glflo
expires:202609220300;;834938
open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt mon sep 21 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...an expansive 30.6 inch high will remain centered from
eastern ontario province to southern quebec through saturday while
gradually weakening to 30.3 inches late this week. an elongated 29.6
inch low well offshore of the east coast friday is forecast to
strengthen to 29.2 inches as it moves to just off the southern new
england coast saturday night through sunday.
loz063>065-220300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt mon sep 21 2026
.tonight...northeast winds 15 to 25 knots. waves 2 to 4 feet
building to 4 to 7 feet. waves occasionally around 9 feet.
.tuesday...northeast winds 15 to 25 knots. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet.
.tuesday night...northeast winds 15 to 20 knots becoming east.
waves 3 to 6 feet.
.wednesday...east winds 15 to 20 knots becoming northeast. waves
3 to 5 feet subsiding to 2 to 4 feet.
.wednesday night...east winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet.
.thursday...east winds 10 to 15 knots becoming northeast. waves
1 to 3 feet.
.friday...northeast winds 10 to 15 knots becoming north 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet.
.saturday...north winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet.
$$
(3/4)
Latest Great Lakes Marine Forecast by KCLE
Issued 9/21/2026 3:42 PM America/New_York.
Valid through 9/21/2026 10:15 PM America/New_York.
fzus61 kcle 211942
glfle
expires:202609220215;;834398
open lake forecast for lake erie
national weather service cleveland oh
342 pm edt mon sep 21 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 30.00 inches will persist across lake erie
through wednesday. high pressure 30.20 inches will build south
across the great lakes thursday into friday.
lez164>168-220215-
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-
342 pm edt mon sep 21 2026
.tonight...northeast winds to 30 knots becoming east. a chance of
showers this evening, then a slight chance of showers after
midnight. waves 6 to 10 feet. waves occasionally around 13 feet.
.tuesday...east winds to 30 knots. a slight chance of waterspouts
in the afternoon. a slight chance of showers in the afternoon.
waves 6 to 10 feet. waves occasionally around 13 feet.
.tuesday night...east winds to 30 knots diminishing to 15 to
25 knots. a chance of showers. waves 6 to 10 feet subsiding to
5 to 8 feet. waves occasionally around 13 feet.
.wednesday...east winds 15 to 25 knots. a chance of showers.
waves 4 to 7 feet subsiding to 3 to 6 feet. waves occasionally
around 9 feet.
.wednesday night...east winds 15 to 25 knots. a chance of showers
in the evening. waves 3 to 6 feet.
.thursday...east winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet building to 3 to 5 feet, then
subsiding to 2 to 4 feet.
.friday...northeast winds 10 to 15 knots. waves 1 to 3 feet.
.saturday...northeast winds 5 to 10 knots. waves 1 to 3 feet.
$$
(4/4)
Latest Great Lakes Marine Forecast by KCLE
Issued 9/21/2026 3:42 PM America/New_York.
Valid through 9/21/2026 10:15 PM America/New_York.
fzus61 kcle 211942
glfle
expires:202609220215;;834399
open lake forecast for lake erie
national weather service cleveland oh
342 pm edt mon sep 21 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
a trough averaging 30.00 inches will persist across lake erie
through wednesday. high pressure 30.20 inches will build south
across the great lakes thursday into friday.
lez061-169-220215-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
342 pm edt mon sep 21 2026
.tonight...northeast winds 15 to 25 knots becoming east. waves
3 to 6 feet building to 4 to 7 feet, then subsiding to 3 to
6 feet. waves occasionally around 9 feet.
.tuesday...east winds 15 to 25 knots becoming northeast. waves
3 to 6 feet.
.tuesday night...east winds 15 to 25 knots. waves 3 to 6 feet
building to 4 to 7 feet, then subsiding to 3 to 6 feet. waves
occasionally around 9 feet.
.wednesday...east winds 15 to 20 knots. waves 2 to 4 feet.
.wednesday night...east winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet.
.thursday...east winds 10 to 15 knots. waves 1 to 3 feet.
.friday...northeast winds 5 to 15 knots. waves 2 feet or less.
.saturday...north winds 5 to 10 knots becoming northeast. waves
2 feet or less.
$$
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