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Latest Great Lakes Marine Forecast by KBUF
Issued 8/6/2026 4:03 AM America/New_York.
Valid through 8/6/2026 11:00 AM America/New_York.
fzus61 kbuf 060803
glflo
expires:202608061500;;703119
open lake forecast for lake ontario
national weather service buffalo ny
402 am edt thu aug 6 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 30.3 inch high off the mid-alantic will
slowly drift south and southeast while weakening to 30.2 inches
through saturday. meanwhile, a 29.4 inch low over northeastern
manitoba will slowly track east over the hudson bay and weaken to
29.6 inches by saturday while sending its cold front through the
region. a 30.1 inch high over the southeast will then nose in over
the lake sunday followed by a 29.7 inch low that will pass by to our
north monday through tuesday.
loz062-061500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt thu aug 6 2026
.today...southwest winds less than 10 knots. waves 1 foot or
less.
.tonight...south winds less than 10 knots. waves 1 foot or less.
.friday...light and variable winds. a chance of showers in the
morning, then a chance of showers and thunderstorms in the
afternoon. waves 1 foot or less.
.friday night...southeast winds 5 to 10 knots becoming southwest.
a chance of showers and thunderstorms in the evening, then a
chance of showers overnight. waves 1 foot or less.
.saturday...southwest winds 5 to 15 knots becoming west. a chance
of showers and thunderstorms. waves 1 to 2 feet.
.sunday...west winds 5 to 10 knots becoming southwest. a chance
of showers sunday night. waves 2 feet or less.
.monday...southwest winds 5 to 15 knots. a chance of showers and
thunderstorms during the day, then showers likely with a chance
of thunderstorms monday night. waves 1 to 2 feet.
winds and waves higher in and near thunderstorms.
$$
(2/3)
Latest Great Lakes Marine Forecast by KBUF
Issued 8/6/2026 4:03 AM America/New_York.
Valid through 8/6/2026 11:00 AM America/New_York.
fzus61 kbuf 060803
glflo
expires:202608061500;;703120
open lake forecast for lake ontario
national weather service buffalo ny
402 am edt thu aug 6 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 30.3 inch high off the mid-alantic will
slowly drift south and southeast while weakening to 30.2 inches
through saturday. meanwhile, a 29.4 inch low over northeastern
manitoba will slowly track east over the hudson bay and weaken to
29.6 inches by saturday while sending its cold front through the
region. a 30.1 inch high over the southeast will then nose in over
the lake sunday followed by a 29.7 inch low that will pass by to our
north monday through tuesday.
loz063>065-061500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt thu aug 6 2026
.today...south winds 5 to 10 knots becoming west. a chance of
showers early. waves 1 foot or less.
.tonight...southwest winds less than 10 knots. waves 1 foot or
less.
.friday...southwest winds less than 10 knots becoming southeast.
showers likely with a chance of thunderstorms in the afternoon.
waves 1 foot or less.
.friday night...south winds 10 knots or less becoming southwest.
showers likely with a chance of thunderstorms. waves 1 foot or
less.
.saturday...southwest winds 5 to 15 knots becoming west. showers
likely with a chance of thunderstorms during the day, then a
chance of showers saturday night. waves 1 to 3 feet.
.sunday...west winds 5 to 15 knots becoming southwest. a chance
of showers sunday night. waves 1 to 3 feet.
.monday...southwest winds 5 to 15 knots becoming west. a chance
of showers and thunderstorms during the day, then showers likely
with a chance of thunderstorms monday night. waves 1 to 2 feet.
winds and waves higher in and near thunderstorms.
$$
(3/3)
Latest Great Lakes Marine Forecast by KBUF
Issued 8/6/2026 4:03 AM America/New_York.
Valid through 8/6/2026 11:00 AM America/New_York.
fzus61 kbuf 060803
glfsl
expires:202608061500;;703158
forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 am edt thu aug 6 2026
slz022-024-061500-
saint lawrence river from cape vincent to saint regis
403 am edt thu aug 6 2026
.today...southwest winds less than 10 knots. a chance of showers
early, then a chance of showers and thunderstorms from late
morning on.
.tonight...southwest winds less than 10 knots. a chance of
showers and thunderstorms early.
.friday...light and variable winds. a chance of showers and
thunderstorms in the afternoon.
.friday night...southwest winds less than 10 knots becoming
south. a chance of showers and thunderstorms in the evening, then
showers likely with a chance of thunderstorms overnight.
.saturday...southwest winds 5 to 10 knots. showers likely with a
chance of thunderstorms during the day, then a chance of showers
and thunderstorms saturday night.
.sunday...southwest winds 10 knots or less. a chance of showers.
.monday...southwest winds 5 to 10 knots. a chance of showers and
thunderstorms during the day, then showers likely with a chance
of thunderstorms monday night.
winds and waves higher in and near thunderstorms.
$$
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