fzus61 kbuf 072011
glfsl 
expires:202604080300;;995008

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
410 pm edt tue apr 7 2026


slz022-024-080300-
saint lawrence river from cape vincent to saint regis
410 pm edt tue apr 7 2026

.tonight...northwest winds 5 to 10 knots becoming light and
variable. becoming mainly clear. 
.wednesday...light and variable winds becoming southwest 5 to
10 knots. sunny.
.wednesday night...south winds less than 10 knots increasing to
15 to 20 knots. mainly clear. 
.thursday...south winds 15 to 20 knots. a chance of rain showers
in the afternoon. 
.thursday night...south winds 15 to 20 knots becoming southwest
5 to 15 knots. a chance of showers. 
.friday...west winds 10 knots or less becoming northwest. rain
showers likely. 
.saturday...northwest winds less than 10 knots. becoming mainly
clear. 
.sunday...south winds 10 knots or less becoming southwest 10 to
15 knots. a chance of rain showers sunday night. 

$$

fzus61 kbuf 072010
glflo 
expires:202604080300;;994654

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt tue apr 7 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 29.9 inch clipper low will move off the new england 
coast this evening. a 30.6 inch high will then build over the lower 
great lakes tonight, then east across new england wednesday before 
moving southeast of nova scotia thursday. a 29.5 inch low will then 
move from the north shore of lake superior wednesday night to 
northern quebec by thursday night, with a trailing cold front 
crossing the lake thursday night and friday. a 30.5 inch high is 
then forecast to build into the central great lakes saturday, then 
drift east to new england by sunday.


loz062-080300-
lake ontario open waters from the niagara river to hamlin beach-
409 pm edt tue apr 7 2026

.tonight...northwest winds 15 to 20 knots becoming northeast and
diminishing to less than 10 knots after midnight. waves 3 to
5 feet subsiding to 2 feet or less. 
.wednesday...southeast winds 10 knots or less becoming east 10 to
15 knots. waves 2 feet or less. 
.wednesday night...east winds 10 to 15 knots becoming south 15 to
20 knots. waves 2 to 4 feet building to 3 to 5 feet. 
.thursday...south winds 15 to 25 knots becoming southwest. a
chance of showers in the afternoon. waves 3 to 6 feet. 
.thursday night...southwest winds 15 to 20 knots becoming
northwest and diminishing to 5 to 10 knots. a chance of rain
showers. waves 3 to 6 feet subsiding to 1 to 2 feet. 
.friday...north winds 5 to 10 knots becoming northwest. rain
showers. waves 2 feet or less. 
.saturday...northwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.sunday...southeast winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. a chance of rain showers. waves
2 feet or less building to 3 to 5 feet. 

$$

fzus61 kbuf 072010
glflo 
expires:202604080300;;994655

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt tue apr 7 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 29.9 inch clipper low will move off the new england 
coast this evening. a 30.6 inch high will then build over the lower 
great lakes tonight, then east across new england wednesday before 
moving southeast of nova scotia thursday. a 29.5 inch low will then 
move from the north shore of lake superior wednesday night to 
northern quebec by thursday night, with a trailing cold front 
crossing the lake thursday night and friday. a 30.5 inch high is 
then forecast to build into the central great lakes saturday, then 
drift east to new england by sunday.


loz063>065-080300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
409 pm edt tue apr 7 2026

.tonight...west winds 15 to 20 knots becoming northwest and
diminishing to less than 10 knots. waves 4 to 7 feet subsiding to
2 feet or less. waves occasionally around 9 feet. 
.wednesday...southwest winds 10 knots or less becoming east 10 to
15 knots. waves 2 feet or less. 
.wednesday night...east winds 10 to 15 knots becoming south and
increasing to 30 knots overnight. waves 1 to 3 feet building to
4 to 7 feet. waves occasionally around 9 feet. 
.thursday...south winds to 30 knots diminishing to 15 to
25 knots. a chance of rain showers in the afternoon. waves 4 to
7 feet subsiding to 3 to 6 feet. waves occasionally around
9 feet. 
.thursday night...south winds 15 to 20 knots becoming west 5 to
15 knots. a chance of rain showers in the evening. waves 3 to
6 feet subsiding to 1 to 3 feet. 
.friday...north winds 5 to 15 knots becoming northwest. rain
showers likely. waves 1 to 3 feet. 
.saturday...northwest winds 5 to 15 knots becoming south less
than 10 knots. waves 2 feet or less. 
.sunday...southeast winds 5 to 10 knots becoming south and
increasing to 15 to 25 knots. a chance of rain showers sunday
night. waves 2 feet or less building to 3 to 6 feet. 

$$