fzus61 kbuf 302003
glfsl 
expires:202608310300;;624837

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 pm edt sun aug 30 2026


slz022-024-310300-
saint lawrence river from cape vincent to saint regis
403 pm edt sun aug 30 2026

.tonight...southwest winds 5 to 10 knots becoming light and
variable. showers likely with a chance of thunderstorms early.
areas of fog from late evening on. 
.monday...light and variable winds. patchy fog early. a chance of
showers late. 
.monday night...light and variable winds. a chance of showers in
the evening, then showers likely overnight. 
.tuesday...northeast winds 10 knots or less. showers likely. 
.tuesday night...northeast winds less than 10 knots. showers
likely in the evening, then a chance of showers overnight. 
.wednesday...south winds 10 knots or less becoming southwest.
showers likely with a chance of thunderstorms. 
.thursday...southwest winds less than 10 knots. a chance of
showers. 
.friday...northwest winds less than 10 knots becoming north. a
chance of showers during the day. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 302002
glflo 
expires:202608310300;;624778

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun aug 30 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 frontal boundary north of lake ontario will settle 
south across the lake tonight, then stall just southwest of the lake 
monday. the front will then move back northeast across the lake as a 
warm front monday night through early tuesday. the frontal zone will 
continue to meander north and south over or near the lake through 
much of the week.


loz062-310300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt sun aug 30 2026

.tonight...southwest winds 10 knots or less becoming southeast.
showers likely early, then a chance of showers. showers likely
late. waves 1 foot or less. 
.monday...southeast winds 10 knots or less. showers likely in the
morning, then showers with a chance of thunderstorms in the
afternoon. waves 1 foot or less. 
.monday night...southeast winds 10 knots or less becoming
southwest. showers with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 1 foot or less. 
.tuesday...southwest winds 5 to 10 knots becoming south. a chance
of showers in the morning, then a chance of showers and
thunderstorms in the afternoon. waves 1 foot or less. 
.tuesday night...southeast winds 5 to 10 knots becoming
southwest. a chance of showers and thunderstorms in the evening,
then showers likely overnight. waves 1 foot or less. 
.wednesday...southwest winds 5 to 10 knots becoming west. showers
likely with a chance of thunderstorms. waves 1 foot or less. 
.thursday...west winds 5 to 10 knots becoming northwest. a chance
of showers during the day. waves 1 foot or less. 
.friday...northwest winds 10 knots or less becoming north. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 302002
glflo 
expires:202608310300;;624779

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun aug 30 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 frontal boundary north of lake ontario will settle 
south across the lake tonight, then stall just southwest of the lake 
monday. the front will then move back northeast across the lake as a 
warm front monday night through early tuesday. the frontal zone will 
continue to meander north and south over or near the lake through 
much of the week.


loz063>065-310300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt sun aug 30 2026

.tonight...west winds 10 knots or less becoming south. waves
2 feet or less. 
.monday...southeast winds 10 knots or less. a chance of showers.
showers with a chance of thunderstorms late. waves 1 foot or
less. 
.monday night...southeast winds 10 knots or less becoming
southwest. showers likely with a chance of thunderstorms. waves
1 foot or less. 
.tuesday...southwest winds 5 to 10 knots becoming northwest. a
chance of showers. waves 1 foot or less. 
.tuesday night...east winds 10 knots or less becoming south. a
chance of showers. waves 1 foot or less. 
.wednesday...south winds 5 to 15 knots becoming west. showers
likely with a chance of thunderstorms during the day, then a
chance of showers and thunderstorms wednesday night. waves 2 feet
or less. 
.thursday...west winds 5 to 10 knots becoming northwest. a chance
of showers during the day. waves 2 feet or less. 
.friday...northwest winds 5 to 10 knots becoming north. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 301943
glfle 
expires:202608310215;;624221

open lake forecast for lake erie
national weather service cleveland oh
343 pm edt sun aug 30 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 warm front will lift north across the region today and settle 
across the eastern great lakes through mid week. low pressure 
29.90 inches moves north of the great lakes wednesday passing a 
cold front through the area on thursday into friday.


lez061-167>169-310215-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 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-
343 pm edt sun aug 30 2026

.tonight...southwest winds 5 to 10 knots becoming south. a chance
of showers with a slight chance of thunderstorms early, then
showers with a slight chance of thunderstorms late this evening.
a chance of showers with a slight chance of thunderstorms after
midnight. waves 1 foot or less. 
.monday...southwest winds 5 to 10 knots. a chance of showers with
a slight chance of thunderstorms early, then a slight chance of
showers and thunderstorms. waves 2 feet or less. 
.monday night...southwest winds 5 to 15 knots. waves 1 to 3 feet.
.tuesday...southwest winds 10 to 15 knots. a chance of showers in
the afternoon. waves 1 to 3 feet. 
.tuesday night...southwest winds 5 to 15 knots. a chance of
showers in the evening, then showers likely overnight. waves 1 to
2 feet. 
.wednesday...southwest winds 5 to 15 knots. a chance of showers
during the day, then a chance of showers and thunderstorms
wednesday night. waves 1 to 2 feet. 
.thursday...southwest winds 5 to 10 knots becoming north. a
chance of showers thursday night. waves 1 to 2 feet. 
.friday...north winds 5 to 10 knots becoming northeast. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$