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(1/3)
Latest Great Lakes Marine Forecast by KBUF
Issued 7/28/2026 4:15 AM America/New_York.
Valid through 7/28/2026 11:00 AM America/New_York.
fzus61 kbuf 280815
glflo
expires:202607281500;;742214
open lake forecast for lake ontario
national weather service buffalo ny
403 am edt tue jul 28 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 cold front sweeps southeastward across lake ontario from about
daybreak this morning through afternoon. along this front, a 29.4
inch low should wobble east-southeastward from near lake erie this
morning to southern new england by daybreak thursday and allow a
trough averaging 29.5 inches to impact lake ontario. behind the low,
a high pressure ridge averaging 30.0 inches should slide eastward
across the eastern great lakes on thursday through this saturday.
loz062-281500-
lake ontario open waters from the niagara river to hamlin beach-
403 am edt tue jul 28 2026
.today...south winds 5 to 10 knots becoming northwest. showers
this morning, then a chance of showers and thunderstorms this
afternoon. waves 1 to 3 feet building to 2 to 4 feet.
.tonight...northwest winds 15 to 20 knots becoming north. showers
likely with a chance of thunderstorms in the evening, then
showers likely after midnight. waves 2 to 4 feet building to 3 to
6 feet.
.wednesday...north winds 15 to 20 knots. showers likely. waves
3 to 6 feet.
.wednesday night...north winds 10 to 15 knots. showers likely in
the evening, then a chance of showers overnight. waves 2 to
4 feet.
.thursday...north winds 5 to 15 knots. waves 1 to 3 feet
subsiding to 1 foot or less.
.friday...northwest winds less than 10 knots becoming southwest.
waves 1 foot or less.
.saturday...southeast winds less than 10 knots. a chance of
showers saturday night. waves 1 foot or less.
winds and waves higher in and near thunderstorms.
$$
(2/3)
Latest Great Lakes Marine Forecast by KBUF
Issued 7/28/2026 4:15 AM America/New_York.
Valid through 7/28/2026 11:00 AM America/New_York.
fzus61 kbuf 280815
glflo
expires:202607281500;;742215
open lake forecast for lake ontario
national weather service buffalo ny
403 am edt tue jul 28 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 cold front sweeps southeastward across lake ontario from about
daybreak this morning through afternoon. along this front, a 29.4
inch low should wobble east-southeastward from near lake erie this
morning to southern new england by daybreak thursday and allow a
trough averaging 29.5 inches to impact lake ontario. behind the low,
a high pressure ridge averaging 30.0 inches should slide eastward
across the eastern great lakes on thursday through this saturday.
loz063>065-281500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 am edt tue jul 28 2026
.today...south winds 5 to 15 knots becoming north. showers with a
chance of thunderstorms. waves 1 to 3 feet building to 2 to
4 feet, then subsiding to 1 to 3 feet.
.tonight...north winds 10 to 15 knots increasing to 15 to
20 knots. showers likely with a chance of thunderstorms early,
then showers likely from late evening on. waves 2 to 4 feet
building to 4 to 7 feet. waves occasionally around 9 feet.
.wednesday...north winds 15 to 20 knots. showers in the morning,
then showers with a chance of thunderstorms in the afternoon.
waves 4 to 7 feet subsiding to 3 to 6 feet. waves occasionally
around 9 feet.
.wednesday night...north winds 15 to 20 knots. showers likely
with a chance of thunderstorms in the evening, then showers
likely overnight. waves 3 to 5 feet subsiding to 2 to 4 feet.
.thursday...north winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 2 feet or less.
.friday...north winds 10 knots or less becoming southwest. waves
1 foot or less.
.saturday...south winds less than 10 knots becoming southeast. a
chance of showers saturday night. waves 1 foot or less.
winds and waves higher in and near thunderstorms.
$$
(3/3)
Latest Great Lakes Marine Forecast by KBUF
Issued 7/28/2026 4:03 AM America/New_York.
Valid through 7/28/2026 11:00 AM America/New_York.
fzus61 kbuf 280803
glfsl
expires:202607281500;;741058
forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 am edt tue jul 28 2026
slz022-024-281500-
saint lawrence river from cape vincent to saint regis
403 am edt tue jul 28 2026
.today...southeast winds less than 10 knots becoming east.
showers with a chance of thunderstorms.
.tonight...northeast winds 10 knots or less. showers with a
chance of thunderstorms through the early overnight, then showers
late.
.wednesday...northeast winds 5 to 10 knots. showers in the
morning, then showers with a chance of thunderstorms in the
afternoon.
.wednesday night...northeast winds 5 to 10 knots becoming north.
showers with a chance of thunderstorms in the evening, then
showers likely overnight.
.thursday...north winds 10 knots or less. a chance of showers.
.friday...north winds less than 10 knots. partly cloudy.
.saturday...light and variable winds. a chance of showers
saturday night.
winds and waves higher in and near thunderstorms.
$$
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