fzus61 kbuf 110203
glfsl 
expires:202605110900;;356931

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1003 pm edt sun may 10 2026


slz022-024-110900-
saint lawrence river from cape vincent to saint regis
1003 pm edt sun may 10 2026

.overnight...west winds 10 knots or less. becoming mainly
clear. 
.monday...west winds 10 knots or less. a chance of rain showers
in the afternoon. 
.monday night...west winds 5 to 10 knots becoming light and
variable. becoming mainly clear. 
.tuesday...light and variable winds becoming southwest 5 to
10 knots. sunny.
.tuesday night...southwest winds 10 knots or less becoming
southeast. a chance of showers overnight. 
.wednesday...southeast winds 5 to 15 knots becoming south.
showers.
.thursday...southwest winds 10 knots or less becoming west.
showers likely during the day, then a chance of showers thursday
night. 
.friday...west winds 10 knots or less becoming southwest. mostly
cloudy. 

$$

fzus61 kbuf 110202
glflo 
expires:202605110900;;356884

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sun may 10 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 29.4 inch area of low pressure over northern quebec 
tonight will exit through newfoundland monday. a 30.4 inch high will 
then build from the upper great lakes monday to the lower great 
lakes by tuesday. a 29.8 inch low will move across the great lakes 
wednesday, passing near or just to the north of the lake wednesday 
evening. a 30.1 inch area of high pressure will advance from the 
western great lakes region wednesday night to cresting over the lake 
thursday night and early friday.


loz062-110900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sun may 10 2026

.overnight...west winds 10 knots or less becoming
northwest. waves 1 foot or less. 
.monday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.monday night...west winds 5 to 10 knots becoming northwest.
waves 1 foot or less. 
.tuesday...west winds 10 knots or less becoming east. waves
1 foot or less. 
.tuesday night...southeast winds 5 to 15 knots. showers. waves
2 feet or less. 
.wednesday...south winds 15 to 20 knots becoming west 10 to
15 knots. showers during the day, then showers likely wednesday
night. waves 1 to 3 feet. 
.thursday...west winds 5 to 10 knots becoming northwest. a chance
of showers during the day. waves 1 to 2 feet. 
.friday...west winds 5 to 10 knots becoming southwest. a chance
of showers friday night. waves 1 to 2 feet. 

$$

fzus61 kbuf 110202
glflo 
expires:202605110900;;356885

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sun may 10 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 29.4 inch area of low pressure over northern quebec 
tonight will exit through newfoundland monday. a 30.4 inch high will 
then build from the upper great lakes monday to the lower great 
lakes by tuesday. a 29.8 inch low will move across the great lakes 
wednesday, passing near or just to the north of the lake wednesday 
evening. a 30.1 inch area of high pressure will advance from the 
western great lakes region wednesday night to cresting over the lake 
thursday night and early friday.


loz063>065-110900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sun may 10 2026

.overnight...west winds 5 to 10 knots. waves 1 to 3 feet
subsiding to 1 foot or less. 
.monday...west winds 10 knots or less increasing to 10 to
15 knots. waves 2 feet or less. 
.monday night...west winds 5 to 15 knots becoming northwest.
waves 2 feet or less. 
.tuesday...northwest winds 10 knots or less becoming north. waves
1 foot or less. 
.tuesday night...east winds 5 to 15 knots becoming southeast
15 to 20 knots. showers overnight. waves 1 to 3 feet. 
.wednesday...south winds 15 to 25 knots becoming west and
diminishing to 5 to 15 knots. showers. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.thursday...west winds 5 to 10 knots becoming northwest. a chance
of showers during the day. waves 2 feet or less. 
.friday...west winds 5 to 10 knots becoming southwest. waves
1 foot or less. 

$$