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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1003 pm edt mon oct 5 2026


slz022-024-060900-
saint lawrence river from cape vincent to saint regis
1003 pm edt mon oct 5 2026

.overnight...northwest winds 10 to 15 knots becoming west.
becoming mainly clear. 
.tuesday...west winds 5 to 10 knots. sunny.
.tuesday night...southwest winds 10 knots or less becoming south
10 to 15 knots. mainly clear in the evening, then becoming mostly
cloudy. 
.wednesday...south winds 10 to 15 knots becoming southwest. a
chance of showers. 
.wednesday night...southwest winds 5 to 15 knots. a chance of
showers. 
.thursday...southwest winds 5 to 15 knots becoming west. showers
likely. 
.friday...west winds 10 knots or less. a chance of rain showers. 
.saturday...northwest winds 10 knots or less becoming south.
mainly clear. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt mon oct 5 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 30.2 inch high over the upper midwest will build 
across the great lakes through tuesday, before sliding into the 
northeast wednesday. a cold front will then pass across the lake 
thursday. a 30.1 inch surface high will then ridge north across the 
lake friday.


loz062-060900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt mon oct 5 2026

.overnight...northwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.tuesday...northwest winds 5 to 15 knots becoming west. waves
1 to 3 feet subsiding to 1 foot or less. 
.tuesday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.wednesday...southwest winds 15 to 25 knots. waves 3 to 6 feet. 
.wednesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. waves 2 to 4 feet. 
.thursday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet. 
.friday...west winds 10 to 15 knots becoming northwest. waves
1 to 3 feet. 
.saturday...north winds 10 knots or less becoming south. waves
2 feet or less. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt mon oct 5 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 30.2 inch high over the upper midwest will build 
across the great lakes through tuesday, before sliding into the 
northeast wednesday. a cold front will then pass across the lake 
thursday. a 30.1 inch surface high will then ridge north across the 
lake friday.


loz063>065-060900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt mon oct 5 2026

.overnight...northwest winds 15 to 25 knots. waves 6 to
9 feet subsiding to 3 to 5 feet. waves occasionally around
11 feet. 
.tuesday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday night...west winds 10 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.wednesday...south winds 15 to 25 knots becoming southwest. waves
3 to 5 feet. 
.wednesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. a chance of showers. waves 2 to 4 feet. 
.thursday...west winds 15 to 20 knots. a chance of showers during
the day. waves 2 to 4 feet building to 3 to 5 feet, then
subsiding to 2 to 4 feet. 
.friday...west winds 10 to 15 knots becoming northwest. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...north winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
948 pm edt mon oct 5 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 30.20 inches will persist over lake erie through
tuesday before shifting to the mid-atlantic region by wednesday. 
a cold front with pressure of 29.80 inches will cross lake erie 
wednesday night into thursday with high pressure of 30.20 inches 
returning friday. this area of high pressure will move to new
england on saturday.  


lez061-168-169-060830-
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-
948 pm edt mon oct 5 2026

.overnight...north winds 15 to 20 knots diminishing to 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.tuesday night...southwest winds 5 to 15 knots increasing to
15 to 20 knots. waves 2 feet or less building to 3 to 5 feet. 
.wednesday...southwest winds 15 to 25 knots. waves 3 to 6 feet
building to 4 to 7 feet, then subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.wednesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. waves 3 to 6 feet subsiding to 2 to 3 feet. 
.thursday...west winds 5 to 15 knots becoming northwest. waves
1 to 3 feet. 
.friday...west winds 5 to 15 knots becoming northwest. waves 1 to
2 feet. 
.saturday...east winds 5 to 15 knots becoming south. waves 2 feet
or less. 

$$