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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 am edt sun oct 11 2026


slz022-024-111500-
saint lawrence river from cape vincent to saint regis
403 am edt sun oct 11 2026

.today...south winds 5 to 10 knots. partly sunny this morning,
then becoming cloudy. 
.tonight...south winds less than 10 knots. a chance of rain
through the early overnight. 
.monday...light and variable winds. a chance of showers in the
afternoon. 
.monday night...northwest winds 10 knots or less becoming east.
showers.
.tuesday...southeast winds 5 to 10 knots becoming northwest.
showers.
.wednesday...northwest winds 10 knots or less. mostly cloudy. 
.thursday...northwest winds 10 knots or less becoming east. a
chance of rain showers thursday night. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun oct 11 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 high pressure ridge averaging 30.1 inches exits slowly 
eastward today. a weak trough averaging 29.8 inches slides eastward 
across the lake tonight. behind the trough, a weak ridge averaging 
29.9 inches slides eastward across the lake on monday, exits 
eastward monday night, and is followed by a cold front sweeping 
southeastward across the lake on tuesday. behind the cold front, a 
ridge averaging 30.0 inches builds from northern ontario through 
thursday.


loz062-111500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt sun oct 11 2026

.today...southeast winds 5 to 15 knots becoming east. a chance of
rain. rain late. waves 1 to 2 feet. 
.tonight...east winds 5 to 15 knots becoming northeast less than
10 knots. rain early, then a chance of rain late in the evening.
waves 1 to 2 feet. 
.monday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.monday night...southwest winds 5 to 15 knots. a chance of
showers overnight. waves 2 feet or less. 
.tuesday...southwest winds 10 to 15 knots becoming northwest.
showers. waves 1 to 3 feet building to 2 to 4 feet. 
.wednesday...northwest winds 5 to 15 knots becoming north. waves
1 to 2 feet. 
.thursday...northeast winds 10 to 15 knots becoming southeast
15 to 20 knots. a chance of showers thursday night. waves 1 to
3 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun oct 11 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 high pressure ridge averaging 30.1 inches exits slowly 
eastward today. a weak trough averaging 29.8 inches slides eastward 
across the lake tonight. behind the trough, a weak ridge averaging 
29.9 inches slides eastward across the lake on monday, exits 
eastward monday night, and is followed by a cold front sweeping 
southeastward across the lake on tuesday. behind the cold front, a 
ridge averaging 30.0 inches builds from northern ontario through 
thursday.


loz063>065-111500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt sun oct 11 2026

.today...southeast winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of rain early this afternoon. rain likely
late. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...southeast winds 10 knots or less. rain in the evening,
then a chance of rain after midnight. waves 2 feet or less. 
.monday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.monday night...southwest winds 5 to 15 knots becoming south. a
chance of showers overnight. waves 2 feet or less. 
.tuesday...south winds 15 to 20 knots becoming northwest. showers
with a chance of thunderstorms. waves 1 to 3 feet building to
2 to 4 feet. 
.wednesday...northwest winds 5 to 15 knots becoming north 15 to
20 knots. waves 1 to 3 feet. 
.thursday...north winds 10 to 15 knots becoming southeast 15 to
20 knots. a chance of showers thursday night. waves 1 to 3 feet
building to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
347 am edt sun oct 11 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...
the remnant low of isaias 29.90 inches will move northeast 
through the central appalachians today then offshore of the mid 
atlantic by monday. a cold front with pressure of 29.70 inches 
will settle south across lake erie by tuesday night. high pressure
of 30.30 inches will build over the upper great lakes on 
wednesday and thursday.


lez061-166>169-111415-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm 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-
347 am edt sun oct 11 2026

.today...southeast winds 15 to 20 knots becoming east 10 to
15 knots. showers through early afternoon, then a chance of
showers late. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tonight...east winds 5 to 15 knots becoming north. a slight
chance of showers early. waves 2 feet or less. 
.monday...northwest winds 5 to 10 knots becoming southwest. waves
2 feet or less. 
.monday night...south winds 10 to 15 knots becoming southwest
15 to 20 knots. a chance of showers overnight. waves 1 to 2 feet
building to 2 to 4 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of showers. waves 3 to 5 feet subsiding
to 2 to 4 feet. 
.wednesday...northwest winds 5 to 15 knots becoming northeast
15 to 20 knots. waves 1 to 3 feet. 
.thursday...northeast winds 15 to 20 knots becoming south.
showers likely thursday night. waves 2 to 4 feet building to 3 to
5 feet. 

$$