(1/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 10/23/2026 4:03 AM America/New_York.
Valid through 10/23/2026 11:00 AM America/New_York.
fzus61 kbuf 230803
glfsl
expires:202610231500;;039712
forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 am edt fri oct 23 2026
slz022-024-231500-
saint lawrence river from cape vincent to saint regis
403 am edt fri oct 23 2026
.today...northeast winds 10 knots or less. sunny.
.tonight...northeast winds less than 10 knots. mostly cloudy in
the evening, then becoming partly cloudy.
.saturday...light and variable winds. sunny.
.saturday night...light and variable winds. mainly clear.
.sunday...south winds 5 to 10 knots becoming southwest. mainly
clear, then becoming partly cloudy.
.monday...southwest winds 10 knots or less becoming north. partly
to mostly cloudy.
.tuesday...north winds 5 to 10 knots becoming light and variable.
becoming mainly clear.
$$
(2/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 10/23/2026 4:02 AM America/New_York.
Valid through 10/23/2026 11:00 AM America/New_York.
fzus61 kbuf 230802
glflo
expires:202610231500;;039653
open lake forecast for lake ontario
national weather service buffalo ny
402 am edt fri oct 23 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a ridge averaging 30.5 inches affects the lake through
sunday night as the embedded high pressure center drifts generally
southward from central quebec toward the mid-atlantic states. the
ridge then exits southeastward as a weak cold front sweeps
southeastward across the lake on monday. behind the front, another
ridge averaging 30.5 inches should build from central canada and
vicinity through this tuesday.
loz062-231500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt fri oct 23 2026
.today...east winds 15 to 20 knots diminishing to 10 to 15 knots.
waves 2 to 4 feet.
.tonight...east winds 5 to 15 knots becoming southeast. waves
1 to 3 feet.
.saturday...southeast winds 10 knots or less becoming east. waves
1 foot or less.
.saturday night...east winds 10 knots or less becoming south.
waves 1 foot or less.
.sunday...southwest winds 5 to 15 knots. waves 2 feet or less.
.monday...west winds 5 to 15 knots becoming northeast. waves
2 feet or less building to 2 to 3 feet.
.tuesday...northeast winds 5 to 15 knots becoming east. waves
1 to 3 feet.
$$
(3/4)
Latest Great Lakes Marine Forecast by KBUF
Issued 10/23/2026 4:02 AM America/New_York.
Valid through 10/23/2026 11:00 AM America/New_York.
fzus61 kbuf 230802
glflo
expires:202610231500;;039654
open lake forecast for lake ontario
national weather service buffalo ny
402 am edt fri oct 23 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 ridge averaging 30.5 inches affects the lake through
sunday night as the embedded high pressure center drifts generally
southward from central quebec toward the mid-atlantic states. the
ridge then exits southeastward as a weak cold front sweeps
southeastward across the lake on monday. behind the front, another
ridge averaging 30.5 inches should build from central canada and
vicinity through this tuesday.
loz063>065-231500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt fri oct 23 2026
.today...northeast winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet.
.tonight...northeast winds 10 knots or less becoming southeast.
waves 2 feet or less.
.saturday...south winds less than 10 knots becoming east. waves
1 foot or less.
.saturday night...east winds 10 knots or less becoming south.
waves 1 foot or less.
.sunday...south winds 5 to 15 knots becoming southwest. waves
2 feet or less.
.monday...west winds 5 to 10 knots becoming northeast and
increasing to 15 to 20 knots. waves 2 feet or less building to
2 to 4 feet.
.tuesday...northeast winds 15 to 20 knots becoming east 5 to
15 knots. waves 2 to 4 feet subsiding to 1 foot or less.
$$
(4/4)
Latest Great Lakes Marine Forecast by KCLE
Issued 10/23/2026 3:47 AM America/New_York.
Valid through 10/23/2026 10:15 AM America/New_York.
fzus61 kcle 230747
glfle
expires:202610231415;;039345
open lake forecast for lake erie
national weather service cleveland oh
347 am edt fri oct 23 2026
for waters beyond five nautical miles of shore on lake erie
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...
high pressure 30.50 inches over eastern canada will continue to
build south into the new england states and strengthen to 30.60
inches by saturday. this high will continue south along the east
coast on sunday. a weak front will cross the great lakes on
monday. high pressure 30.50 inches will return from the northeast
on tuesday.
lez061-168-169-231415-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
347 am edt fri oct 23 2026
.today...east winds 5 to 10 knots becoming northeast. waves 1 to
3 feet.
.tonight...northeast winds 5 to 10 knots becoming south. waves
2 feet or less.
.saturday...south winds 10 knots or less becoming northeast.
waves 1 foot or less.
.saturday night...east winds 5 to 10 knots becoming south. waves
1 foot or less.
.sunday...south winds 5 to 10 knots becoming southwest. waves
2 feet or less.
.monday...southwest winds 5 to 15 knots becoming northeast. waves
1 to 2 feet.
.tuesday...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet.
$$
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