fzus61 kbuf 062010
glfsl 
expires:202604070300;;941874

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
410 pm edt mon apr 6 2026


slz022-024-070300-
saint lawrence river from cape vincent to saint regis
410 pm edt mon apr 6 2026

.tonight...west winds 5 to 10 knots becoming northeast. a chance
of snow showers early. snow showers late. 
.tuesday...northeast winds 5 to 15 knots becoming northwest. snow
showers in the morning, then a chance of snow showers early in
the afternoon. 
.tuesday night...northwest winds 5 to 10 knots becoming light and
variable. mainly clear. 
.wednesday...southwest winds 10 knots or less. sunny.
.wednesday night...south winds 10 knots or less increasing to
10 to 15 knots. mainly clear. 
.thursday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. a chance of rain showers thursday night. 
.friday...southwest winds 10 knots or less becoming northwest. a
chance of rain showers. 
.saturday...northwest winds 10 knots or less becoming north. a
chance of rain showers during the day. 

$$

fzus61 kbuf 062009
glflo 
expires:202604070300;;941509

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt mon apr 6 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 cross lake ontario tonight, 
then will slide off the new england coast tuesday. a 30.6 inch high 
will then build from the central great lakes tuesday to the new 
england coastline wednesday, before moving southeast of nova scotia 
thursday. a cold front will cross the lake friday, with a 30.5 inch 
high then forecast to build east across the great lakes saturday.


loz062-070300-
lake ontario open waters from the niagara river to hamlin beach-
409 pm edt mon apr 6 2026

.tonight...west winds 10 knots or less increasing to 15 to
25 knots. a chance of snow showers early, then snow and rain
showers from late evening on. waves 2 feet or less building to
3 to 5 feet. 
.tuesday...northwest winds to 30 knots diminishing to 15 to
20 knots. snow showers likely early, then a chance of snow
showers late in the morning. waves 5 to 8 feet subsiding to 2 to
4 feet. waves occasionally around 10 feet. 
.tuesday night...northwest winds 15 to 20 knots becoming
southeast and diminishing to less than 10 knots overnight. waves
2 to 4 feet subsiding to 1 foot 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 1 to 3 feet building to 2 to 4 feet. 
.thursday...south winds 15 to 25 knots becoming southwest. a
chance of showers thursday night. waves 3 to 6 feet subsiding to
1 to 3 feet. 
.friday...southwest winds 5 to 10 knots becoming northwest. a
chance of rain showers. waves 2 feet or less. 
.saturday...northwest winds 10 knots or less becoming northeast.
a chance of rain showers during the day. waves 2 feet or less. 

$$

fzus61 kbuf 062009
glflo 
expires:202604070300;;941510

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt mon apr 6 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 cross lake ontario tonight, 
then will slide off the new england coast tuesday. a 30.6 inch high 
will then build from the central great lakes tuesday to the new 
england coastline wednesday, before moving southeast of nova scotia 
thursday. a cold front will cross the lake friday, with a 30.5 inch 
high then forecast to build east across the great lakes saturday.


loz063>065-070300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
409 pm edt mon apr 6 2026

.tonight...west winds 5 to 15 knots becoming northwest 15 to
20 knots. snow showers after midnight. waves 1 to 3 feet building
to 2 to 4 feet. 
.tuesday...north winds to 30 knots becoming northwest 15 to
25 knots. snow showers early, then a chance of snow showers.
waves 3 to 6 feet building to 5 to 8 feet, then subsiding to 3 to
5 feet. waves occasionally around 10 feet. 
.tuesday night...west winds 15 to 20 knots becoming northwest
5 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...southwest winds 10 knots or less becoming east.
waves 2 feet or less. 
.wednesday night...southeast winds 10 to 15 knots becoming south
and increasing to 15 to 25 knots. waves 1 to 3 feet building to
3 to 6 feet. 
.thursday...south winds 15 to 25 knots. waves 3 to 6 feet. 
.friday...south winds 15 to 20 knots becoming northwest 5 to
15 knots. a chance of rain showers. waves 2 to 4 feet subsiding
to 2 feet or less. 
.saturday...northwest winds 5 to 15 knots becoming east. a chance
of rain showers during the day. waves 1 to 3 feet subsiding to
1 foot or less. 

$$