fzus61 kbuf 052003
glflo 
expires:202610060300;;589860

open lake forecast for lake ontario
national weather service buffalo ny
402 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.


loz062-060300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt mon oct 5 2026

.tonight...northwest winds 15 to 25 knots diminishing to 10 to
15 knots. waves 5 to 8 feet subsiding to 2 to 4 feet. waves
occasionally around 10 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. 

$$

fzus61 kbuf 052003
glflo 
expires:202610060300;;589861

open lake forecast for lake ontario
national weather service buffalo ny
402 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>065-060300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt mon oct 5 2026

.tonight...northwest winds to 30 knots diminishing to 15 to
25 knots. waves 6 to 10 feet subsiding to 3 to 5 feet. waves
occasionally around 13 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. 

$$

fzus61 kbuf 052003
glfsl 
expires:202610060300;;589903

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


slz022-024-060300-
saint lawrence river from cape vincent to saint regis
403 pm edt mon oct 5 2026

.tonight...northwest winds 10 to 15 knots becoming west. mostly
cloudy early, then clearing. 
.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. 

$$