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(1/3)
Latest Great Lakes Marine Forecast by KBUF
Issued 6/21/2026 10:02 PM America/New_York.
Valid through 6/22/2026 5:00 AM America/New_York.
fzus61 kbuf 220202
glflo
expires:202606220900;;156714
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sun jun 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...a 30.0 inch broad area of high pressure will settle east
of the lake tonight. in its wake a 29.7 inch low is then forecast to
move south of the lower great lakes monday and monday night, before
moving off the new england coast by tuesday. a broad area of high
pressure averaging 30.1 inches will advance over the eastern great
lakes region tuesday and wednesday, before exiting east into new
england on thursday as a weak 29.8 inch low moves east into the
central great lakes. this low is forecasted to move north of the
lake friday, with its associated weak cold front crossing the lake.
loz062-220900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sun jun 21 2026
.overnight...southwest winds less than 10 knots. a chance
of showers late. waves 1 foot or less.
.monday...east winds 5 to 15 knots becoming northeast. showers.
waves 2 feet or less building to 2 to 3 feet.
.monday night...northeast winds 5 to 15 knots becoming west
10 knots or less. a chance of showers in the evening. waves 1 to
3 feet.
.tuesday...west winds 5 to 10 knots. waves 1 foot or less.
.tuesday night...west winds 5 to 10 knots becoming northwest.
waves 2 feet or less.
.wednesday...west winds less than 10 knots becoming south. waves
1 foot or less.
.thursday...southeast winds 10 knots or less becoming southwest.
a chance of showers and thunderstorms. waves 1 foot or less.
.friday...southwest winds 5 to 10 knots becoming west. a chance
of showers during the day. waves 1 foot or less.
winds and waves higher in and near thunderstorms.
$$
(2/3)
Latest Great Lakes Marine Forecast by KBUF
Issued 6/21/2026 10:02 PM America/New_York.
Valid through 6/22/2026 5:00 AM America/New_York.
fzus61 kbuf 220202
glflo
expires:202606220900;;156715
open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sun jun 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...a 30.0 inch broad area of high pressure will settle east
of the lake tonight. in its wake a 29.7 inch low is then forecast to
move south of the lower great lakes monday and monday night, before
moving off the new england coast by tuesday. a broad area of high
pressure averaging 30.1 inches will advance over the eastern great
lakes region tuesday and wednesday, before exiting east into new
england on thursday as a weak 29.8 inch low moves east into the
central great lakes. this low is forecasted to move north of the
lake friday, with its associated weak cold front crossing the lake.
loz063>065-220900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sun jun 21 2026
.overnight...southwest winds 5 to 10 knots becoming south.
waves 1 foot or less.
.monday...southeast winds 5 to 15 knots becoming northeast 15 to
20 knots. a chance of showers early, then showers from late
morning on. waves 1 to 3 feet.
.monday night...northeast winds 15 to 20 knots becoming northwest
5 to 15 knots. showers likely in the evening. waves 1 to 3 feet
subsiding to 1 foot or less.
.tuesday...northwest winds 5 to 10 knots becoming west. waves
2 feet or less.
.tuesday night...west winds 5 to 15 knots becoming northwest.
waves 1 to 2 feet.
.wednesday...west winds 5 to 15 knots becoming south less than
10 knots. waves 1 foot or less.
.thursday...south winds 10 knots or less. a chance of showers
during the day, then showers likely with a chance of
thunderstorms thursday night. waves 1 foot or less.
.friday...southwest winds 5 to 15 knots becoming west. a chance
of showers during the day. waves 2 feet or less.
winds and waves higher in and near thunderstorms.
$$
(3/3)
Latest Great Lakes Marine Forecast by KCLE
Issued 6/21/2026 9:42 PM America/New_York.
Valid through 6/22/2026 4:30 AM America/New_York.
fzus61 kcle 220142
glfle
expires:202606220830;;156022
open lake forecast for lake erie
national weather service cleveland oh
942 pm edt sun jun 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 29.80 inches will impact lake erie through
monday as the parent low of 29.70 inches wobbles east-northeastward
from southern illinois to near central pennsylvania. behind the
low and trough, a ridge averaging 30.00 inches should build from
the upper midwest monday night through tuesday and then begin to
exit eastward by wednesday. a warm front should drift northeastward
across lake erie wednesday night through thursday morning and a
cold front should sweep eastward across the lake thursday evening
through friday morning as a low of 29.80 inches wobbles
east-northeastward from the upper midwest to southern quebec.
behind the cold front, a ridge averaging 30.10 inches should build
from the upper midwest through the remainder of this friday.
lez061-168-169-220830-
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-
942 pm edt sun jun 21 2026
.rest of tonight...south winds 10 knots or less becoming east
10 to 15 knots. a slight chance of showers after midnight.
showers likely late. waves 1 foot or less.
.monday...east winds 15 to 25 knots becoming northeast. showers
in the morning, then a chance of showers in the afternoon. waves
2 to 4 feet building to 3 to 6 feet.
.monday night...northeast winds 15 to 20 knots becoming north
5 to 15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet.
.tuesday...northwest winds 5 to 10 knots becoming west. waves
2 feet or less.
.tuesday night...west winds 10 knots or less becoming north.
waves 2 feet or less.
.wednesday...west winds 10 knots or less becoming south. a chance
of showers wednesday night. waves 1 foot or less.
.thursday...south winds 5 to 10 knots becoming southwest. a
chance of showers and thunderstorms. waves 1 foot or less.
.friday...west winds 10 knots or less becoming southwest. waves
2 feet or less.
winds and waves higher in and near thunderstorms.
$$
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