(1/2)
Latest Great Lakes Marine Forecast by KBUF
Issued 10/18/2026 10:06 AM America/New_York.
Valid through 10/18/2026 5:00 PM America/New_York.
fzus61 kbuf 181406
glfsl
expires:202610182100;;311094
forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1005 am edt sun oct 18 2026
slz022-024-182100-
saint lawrence river from cape vincent to saint regis
1005 am edt sun oct 18 2026
.this afternoon...southwest winds 5 to 15 knots. sunny.
.tonight...southwest winds 5 to 15 knots. mainly clear.
.monday...southwest winds 5 to 10 knots. sunny.
.monday night...southwest winds less than 10 knots. mainly clear.
.tuesday...northeast winds 10 knots or less. mainly clear.
.wednesday...northeast winds less than 10 knots. mainly clear.
.thursday...light and variable winds becoming north 5 to
10 knots. becoming mainly clear.
$$
(2/2)
Latest Great Lakes Marine Forecast by KBUF
Issued 10/18/2026 10:03 AM America/New_York.
Valid through 10/18/2026 5:00 PM America/New_York.
fzus61 kbuf 181403
glflo
expires:202610182100;;311092
open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt sun oct 18 2026
for waters beyond five nautical miles of shore on lake ontario
waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.
.synopsis...a ridge averaging 30.2 inches affects the lake through
thursday. one embedded high pressure center should wobble
northeastward from the southern great plains to near newfoundland
through tonight. another embedded and reinforcing high pressure
center should move from near the border of the north-central united
states and canada to near the canadian maritimes this monday through
wednesday. a third embedded and reinforcing high pressure center
should move eastward from the canadian prairies to near the border
of ontario and quebec this wednesday through thursday.
loz063>065-182100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 am edt sun oct 18 2026
.this afternoon...southwest winds 15 to 20 knots. waves 2 to
4 feet.
.tonight...southwest winds 10 to 15 knots. waves 1 to 3 feet.
.monday...southwest winds 5 to 15 knots becoming west. waves 1 to
3 feet.
.monday night...west winds 10 knots or less becoming north 10 to
15 knots. waves 2 feet or less.
.tuesday...northeast winds 10 to 15 knots. waves 1 to 3 feet.
.wednesday...northeast winds 10 knots or less becoming north.
waves 2 feet or less.
.thursday...north winds 10 knots or less becoming northeast and
increasing to 15 to 20 knots. waves 2 feet or less building to
2 to 4 feet.
$$
|