(1/3)
Latest Great Lakes Marine Forecast by KBUF
Issued 9/30/2026 4:03 PM America/New_York.
Valid through 9/30/2026 11:00 PM America/New_York.
fzus61 kbuf 302003
glflo
expires:202610010300;;317285
open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt wed sep 30 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 30.1 inch high will continue to build across the
eastern seaboard, spanning across the eastern great lakes this
afternoon. a warm front will lift across the lake thursday, followed
by a cold front crossing the lower great lakes later thursday night
and friday morning. a 30.3 inch high is then forecast to build into
the western great lakes friday night and over the eastern great
lakes by saturday, before exiting into northern new england sunday.
meanwhile, a cold front will then cross the eastern great lakes
sunday night, with another 30.3 inch high building from the western
great lakes into the eastern great lakes monday and tuesday.
loz062-010300-
lake ontario open waters from the niagara river to hamlin beach-
403 pm edt wed sep 30 2026
.tonight...south winds 5 to 15 knots becoming southwest. a chance
of showers after midnight. showers likely late. waves 2 feet or
less.
.thursday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. showers likely early, then a chance of showers late in
the morning. waves 1 to 3 feet.
.thursday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. showers. waves 2 to 3 feet.
.friday...west winds 10 to 15 knots becoming northwest. showers
likely. waves 2 to 3 feet.
.friday night...northwest winds 15 to 20 knots becoming north
10 to 15 knots. waves 2 to 4 feet.
.saturday...north winds 10 knots or less becoming southeast.
waves 2 feet or less.
.sunday...south winds 5 to 15 knots becoming northwest 15 to
20 knots. waves 2 feet or less building to 2 to 4 feet.
.monday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet.
$$
(2/3)
Latest Great Lakes Marine Forecast by KBUF
Issued 9/30/2026 4:03 PM America/New_York.
Valid through 9/30/2026 11:00 PM America/New_York.
fzus61 kbuf 302003
glflo
expires:202610010300;;317286
open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt wed sep 30 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 30.1 inch high will continue to build across the
eastern seaboard, spanning across the eastern great lakes this
afternoon. a warm front will lift across the lake thursday, followed
by a cold front crossing the lower great lakes later thursday night
and friday morning. a 30.3 inch high is then forecast to build into
the western great lakes friday night and over the eastern great
lakes by saturday, before exiting into northern new england sunday.
meanwhile, a cold front will then cross the eastern great lakes
sunday night, with another 30.3 inch high building from the western
great lakes into the eastern great lakes monday and tuesday.
loz063>065-010300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 pm edt wed sep 30 2026
.tonight...southeast winds 5 to 15 knots becoming southwest. a
chance of showers late. waves 2 feet or less.
.thursday...southwest winds 10 to 15 knots becoming south. a
chance of showers through early afternoon. waves 1 to 3 feet.
.thursday night...southwest winds 10 to 15 knots becoming west. a
chance of showers in the evening, then showers overnight. waves
1 to 3 feet.
.friday...west winds 10 to 15 knots increasing to 15 to 20 knots.
showers. waves 1 to 3 feet building to 2 to 4 feet.
.friday night...northwest winds 15 to 20 knots becoming north
10 to 15 knots. a chance of showers in the evening. waves 3 to
5 feet subsiding to 2 to 4 feet.
.saturday...north winds 5 to 15 knots becoming southeast 10 knots
or less. waves 1 to 3 feet subsiding to 1 foot or less.
.sunday...south winds 15 to 20 knots becoming west. waves 1 to
3 feet building to 3 to 5 feet.
.monday...northwest winds 15 to 20 knots becoming north. waves
3 to 5 feet subsiding to 2 to 4 feet.
$$
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Latest Great Lakes Marine Forecast by KCLE
Issued 9/30/2026 3:36 PM America/New_York.
Valid through 9/30/2026 10:15 PM America/New_York.
fzus61 kcle 301936
glfle
expires:202610010215;;316492
open lake forecast for lake erie
national weather service cleveland oh
336 pm edt wed sep 30 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...
weak low pressure 29.90 inches will extend a cold front through
the area thursday night into friday, followed by high pressure
30.20 inches on saturday. another cold front will cross the lake
on sunday, followed by stronger high pressure 30.40 inches for
early next week.
lez061-168-169-010215-
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-
336 pm edt wed sep 30 2026
.tonight...south winds 5 to 15 knots. a slight chance of showers
early, then showers likely late this evening. a chance of showers
after midnight. waves 2 feet or less.
.thursday...south winds 10 to 15 knots becoming southwest. a
chance of showers early. waves 1 to 3 feet.
.thursday night...southwest winds 10 to 15 knots becoming west. a
chance of showers overnight. waves 1 to 3 feet.
.friday...northwest winds 10 to 15 knots. showers in the morning.
waves 1 to 3 feet.
.friday night...northwest winds 15 to 20 knots becoming north
10 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet.
.saturday...northeast winds 5 to 15 knots becoming southeast.
waves 2 feet or less.
.sunday...south winds 5 to 15 knots becoming northwest 15 to
20 knots. waves 2 feet or less building to 2 to 4 feet.
.monday...north winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet.
$$
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