(1/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 9/12/2026 10:02 PM America/New_York.
Valid through 9/13/2026 5:00 AM America/New_York.
fzus61 kbuf 130202
glflo
expires:202609130900;;355810
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat sep 12 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 high pressure ridge averaging 30.0 inches continues
to exit eastward and allows a wavy warm front to sweep northeastward
across the lake this evening. a cold front then sweeps eastward
across the lake on sunday. behind the cold front, a ridge averaging
30.2 inches will slide eastward across the lower great lakes through
monday. the ridge should exit toward new england on tuesday and
allow a warm front to sweep northeastward across the lake. a cold
front should sweep eastward across the lake on wednesday and be
followed by a ridge averaging 30.1 inches and building from the
upper midwest through thursday.
loz062-130900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sat sep 12 2026
.overnight...south winds 10 to 15 knots becoming southwest.
waves 1 to 3 feet.
.sunday...west winds 5 to 15 knots. waves 1 to 2 feet.
.sunday night...northwest winds 15 to 20 knots. a chance of
showers in the evening. waves 1 to 3 feet building to 3 to
5 feet, then subsiding to 2 to 4 feet.
.monday...north winds 15 to 20 knots becoming west and
diminishing to less than 10 knots in the afternoon. waves 2 to
4 feet subsiding to 1 foot or less.
.monday night...west winds 10 knots or less becoming south. waves
1 foot or less.
.tuesday...south winds 5 to 15 knots becoming southwest. a chance
of showers tuesday night. waves 2 feet or less.
.wednesday...west winds 10 knots or less becoming east. a chance
of showers. waves 1 foot or less.
.thursday...east winds 5 to 15 knots becoming north. showers
likely during the day, then a chance of showers thursday night.
waves 2 feet or less.
$$
(2/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 9/12/2026 10:02 PM America/New_York.
Valid through 9/13/2026 5:00 AM America/New_York.
fzus61 kbuf 130202
glflo
expires:202609130900;;355811
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat sep 12 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 high pressure ridge averaging 30.0 inches continues
to exit eastward and allows a wavy warm front to sweep northeastward
across the lake this evening. a cold front then sweeps eastward
across the lake on sunday. behind the cold front, a ridge averaging
30.2 inches will slide eastward across the lower great lakes through
monday. the ridge should exit toward new england on tuesday and
allow a warm front to sweep northeastward across the lake. a cold
front should sweep eastward across the lake on wednesday and be
followed by a ridge averaging 30.1 inches and building from the
upper midwest through thursday.
loz063>065-130900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sat sep 12 2026
.overnight...south winds 15 to 20 knots becoming southwest.
showers likely with a chance of thunderstorms, then a chance of
showers late. waves 2 to 4 feet.
.sunday...southwest winds 10 to 15 knots becoming west. a chance
of showers early. a chance of showers late. waves 1 to 3 feet.
.sunday night...west winds 15 to 20 knots becoming northwest. a
chance of showers. waves 2 to 4 feet building to 3 to 5 feet.
.monday...northwest winds 15 to 20 knots diminishing to 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet.
.monday night...northwest winds 5 to 10 knots becoming south.
waves 1 foot or less.
.tuesday...south winds 15 to 25 knots. a chance of showers
tuesday night. waves 1 to 3 feet building to 2 to 4 feet.
.wednesday...southwest winds 15 to 20 knots becoming east and
diminishing to 10 knots or less. a chance of showers. waves 1 to
3 feet subsiding to 1 foot or less.
.thursday...southeast winds 5 to 15 knots becoming north 15 to
20 knots. showers likely. waves 2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(3/4)
Latest Great Lakes Marine Forecast by KCLE
Issued 9/13/2026 3:59 AM America/New_York.
Valid through 9/13/2026 10:15 AM America/New_York.
fzus61 kcle 130759
glfle
expires:202609131415;;369611
open lake forecast for lake erie
national weather service cleveland oh
359 am edt sun sep 13 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 cold front will approach the lake today and cross the lake by
this evening. high pressure 30.30 inches will build over the lake
for monday and depart to the east for tuesday. a cold front will
enter for tuesday night and wash out south of the lake for the
middle of the week.
lez164>168-131415-
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-
359 am edt sun sep 13 2026
.today...west winds around 10 knots increasing to 15 to 20 knots.
a slight chance of showers early. waves 1 to 3 feet.
.tonight...northwest winds 15 to 25 knots becoming north. waves
3 to 6 feet.
.monday...north winds 15 to 20 knots becoming northeast and
diminishing to less than 10 knots in the afternoon. waves 3 to
5 feet subsiding to 1 to 3 feet.
.monday night...east winds 5 to 15 knots becoming southeast 15 to
20 knots. waves 1 to 3 feet.
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. showers with a chance of thunderstorms tuesday night.
waves 2 to 4 feet subsiding to 1 to 3 feet.
.wednesday...northwest winds 5 to 10 knots becoming east. a
chance of showers. waves 1 to 2 feet.
.thursday...east winds 5 to 15 knots becoming north. a chance of
showers. waves 1 to 3 feet building to 2 to 4 feet.
winds and waves higher in and near thunderstorms.
$$
(4/4)
Latest Great Lakes Marine Forecast by KCLE
Issued 9/13/2026 3:59 AM America/New_York.
Valid through 9/13/2026 10:15 AM America/New_York.
fzus61 kcle 130759
glfle
expires:202609131415;;369612
open lake forecast for lake erie
national weather service cleveland oh
359 am edt sun sep 13 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 cold front will approach the lake today and cross the lake by
this evening. high pressure 30.30 inches will build over the lake
for monday and depart to the east for tuesday. a cold front will
enter for tuesday night and wash out south of the lake for the
middle of the week.
lez061-169-131415-
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-
359 am edt sun sep 13 2026
.today...southwest winds 10 to 15 knots becoming west. patchy fog
early. a slight chance of showers early. a slight chance of
showers and thunderstorms late. waves 1 to 2 feet.
.tonight...northwest winds 15 to 20 knots becoming north. a
slight chance of showers and thunderstorms early, then a slight
chance of showers late in the evening. waves 2 to 4 feet building
to 3 to 5 feet, then subsiding to 2 to 4 feet.
.monday...north winds 15 to 20 knots becoming light and variable.
waves 2 to 4 feet subsiding to 1 foot or less.
.monday night...east winds 10 knots or less becoming southeast
10 to 15 knots. waves 2 feet or less.
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. showers likely with a chance of thunderstorms tuesday
night. waves 1 to 3 feet.
.wednesday...south winds 5 to 10 knots becoming northeast. a
chance of showers during the day. waves 2 feet or less.
.thursday...northeast winds 5 to 15 knots becoming north. a
chance of showers. waves 2 feet or less.
winds and waves higher in and near thunderstorms.
$$
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