(1/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 5/10/2026 4:03 PM America/New_York.
Valid through 5/10/2026 11:00 PM America/New_York.
fzus61 kbuf 102003
glfsl
expires:202605110300;;343929
forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 pm edt sun may 10 2026
slz022-024-110300-
saint lawrence river from cape vincent to saint regis
403 pm edt sun may 10 2026
.tonight...west winds 5 to 15 knots diminishing to less than
10 knots. becoming mainly clear.
.monday...west winds 10 knots or less. a chance of rain showers
in the afternoon.
.monday night...west winds 5 to 10 knots becoming light and
variable. becoming mainly clear.
.tuesday...light and variable winds becoming southwest 5 to
10 knots. sunny.
.tuesday night...southwest winds 10 knots or less becoming
southeast. a chance of showers overnight.
.wednesday...southeast winds 5 to 15 knots becoming south.
showers.
.thursday...southwest winds 10 knots or less becoming west.
showers likely during the day, then a chance of showers thursday
night.
.friday...west winds 10 knots or less becoming southwest. mostly
cloudy.
$$
(2/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 5/10/2026 4:02 PM America/New_York.
Valid through 5/10/2026 11:00 PM America/New_York.
fzus61 kbuf 102002
glflo
expires:202605110300;;343859
open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun may 10 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a 29.4 inch area of low pressure over northern quebec
tonight will exit through newfoundland monday. a 30.4 inch high will
then build from the upper great lakes monday to the lower great
lakes by tuesday. a 29.8 inch low will move across the great lakes
wednesday, passing near or just to the north of the lake wednesday
evening. a 30.1 inch area of high pressure will advance from the
western great lakes region wednesday night to cresting over the lake
thursday night and early friday.
loz062-110300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt sun may 10 2026
.tonight...west winds 10 knots or less becoming northwest. waves
2 feet or less.
.monday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less.
.monday night...west winds 5 to 10 knots becoming northwest.
waves 1 foot or less.
.tuesday...west winds 10 knots or less becoming east. waves
1 foot or less.
.tuesday night...southeast winds 5 to 15 knots. showers. waves
2 feet or less.
.wednesday...south winds 15 to 20 knots becoming west 10 to
15 knots. showers during the day, then showers likely wednesday
night. waves 1 to 3 feet.
.thursday...west winds 5 to 10 knots becoming northwest. a chance
of showers during the day. waves 1 to 2 feet.
.friday...west winds 5 to 10 knots becoming southwest. a chance
of showers friday night. waves 1 to 2 feet.
$$
(3/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 5/10/2026 4:02 PM America/New_York.
Valid through 5/10/2026 11:00 PM America/New_York.
fzus61 kbuf 102002
glflo
expires:202605110300;;343860
open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun may 10 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 29.4 inch area of low pressure over northern quebec
tonight will exit through newfoundland monday. a 30.4 inch high will
then build from the upper great lakes monday to the lower great
lakes by tuesday. a 29.8 inch low will move across the great lakes
wednesday, passing near or just to the north of the lake wednesday
evening. a 30.1 inch area of high pressure will advance from the
western great lakes region wednesday night to cresting over the lake
thursday night and early friday.
loz063>065-110300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt sun may 10 2026
.tonight...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 1 foot or less.
.monday...west winds 10 knots or less increasing to 10 to
15 knots. waves 2 feet or less.
.monday night...west winds 5 to 15 knots becoming northwest.
waves 2 feet or less.
.tuesday...northwest winds 10 knots or less becoming north. waves
1 foot or less.
.tuesday night...east winds 5 to 15 knots becoming southeast
15 to 20 knots. showers overnight. waves 1 to 3 feet.
.wednesday...south winds 15 to 25 knots becoming west and
diminishing to 5 to 15 knots. showers. waves 3 to 5 feet
subsiding to 1 to 3 feet.
.thursday...west winds 5 to 10 knots becoming northwest. a chance
of showers during the day. waves 2 feet or less.
.friday...west winds 5 to 10 knots becoming southwest. waves
1 foot or less.
$$
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Latest Great Lakes Marine Forecast by KCLE
Issued 5/10/2026 3:40 PM America/New_York.
Valid through 5/10/2026 10:15 PM America/New_York.
fzus61 kcle 101940
glfle
expires:202605110215;;343200
open lake forecast for lake erie
national weather service cleveland oh
340 pm edt sun may 10 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
high pressure 30.20 inches will persist across the region through
monday night. low pressure 29.90 inches will move east through
the lower great lakes late tuesday into wednesday, followed by
high pressure 30.10 inches on thursday.
lez061-168-169-110215-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
340 pm edt sun may 10 2026
.tonight...southwest winds 10 knots or less becoming west. waves
2 feet or less.
.monday...north winds 5 to 10 knots becoming west. waves 1 foot
or less.
.monday night...west winds 10 knots or less becoming northeast.
waves 1 foot or less.
.tuesday...light and variable winds. waves 1 foot or less.
.tuesday night...southeast winds 5 to 15 knots becoming south
15 to 20 knots. showers. waves 1 to 3 feet building to 2 to
4 feet.
.wednesday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of showers. waves 2 to 4 feet.
.thursday...northwest winds 5 to 15 knots becoming west less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less.
.friday...southwest winds 10 knots or less. a chance of showers
friday night. waves 1 foot or less.
$$
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