fzus61 kbuf 060810
glfsl 
expires:202604061500;;915002

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


slz022-024-061500-
saint lawrence river from cape vincent to saint regis
410 am edt mon apr 6 2026

.today...west winds 5 to 15 knots. mostly cloudy early, then
becoming partly sunny. 
.tonight...northwest winds 10 knots or less becoming north. a
chance of snow showers through the early overnight, then snow
showers likely late. 
.tuesday...north winds 5 to 15 knots becoming northwest. a chance
of snow showers. 
.tuesday night...west winds 10 knots or less becoming southwest.
mainly clear. 
.wednesday...southwest winds 5 to 15 knots becoming south. mainly
clear, then becoming partly cloudy. 
.thursday...south winds 10 to 15 knots increasing to 15 to
20 knots. a chance of rain showers thursday night. 
.friday...southwest winds 5 to 15 knots becoming west less than
10 knots. a chance of showers. 

$$

fzus61 kbuf 060809
glflo 
expires:202604061500;;914639

open lake forecast for lake ontario
national weather service buffalo ny
409 am 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 29.1 inch low over quebec will push a cold front 
across the lake today. a 30.5 inch high will build across the great 
lakes tuesday and tuesday night, before sliding east and off the new 
england coast wednesday. a 29.6 inch surface low will then track 
northeast across ontario and quebec, eventually pushing its trailing 
cold front across the lake thursday night and friday.


loz062-061500-
lake ontario open waters from the niagara river to hamlin beach-
409 am edt mon apr 6 2026

.today...west winds 15 to 20 knots diminishing to 5 to 15 knots.
waves 3 to 5 feet subsiding to 1 to 2 feet. 
.tonight...west winds 5 to 15 knots becoming northwest and
increasing to 15 to 25 knots. a chance of rain and snow showers
early, then snow showers likely with a chance of rain showers
late in the evening. snow showers likely after midnight. waves
1 to 2 feet building to 3 to 6 feet. 
.tuesday...northwest winds 15 to 25 knots diminishing to 10 to
15 knots. snow showers likely in the morning. waves 4 to 6 feet
subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 5 to 15 knots becoming southwest
less than 10 knots. waves 1 to 3 feet subsiding to 1 foot or
less. 
.wednesday...south winds 5 to 15 knots increasing to 15 to
20 knots. waves 2 feet or less building to 2 to 3 feet. 
.thursday...south winds 15 to 20 knots becoming southwest. a
chance of showers thursday night. waves 2 to 4 feet. 
.friday...southwest winds 15 to 20 knots becoming northwest 5 to
15 knots. a chance of showers. waves 1 to 3 feet. 

$$

fzus61 kbuf 060809
glflo 
expires:202604061500;;914640

open lake forecast for lake ontario
national weather service buffalo ny
409 am 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 29.1 inch low over quebec will push a cold front 
across the lake today. a 30.5 inch high will build across the great 
lakes tuesday and tuesday night, before sliding east and off the new 
england coast wednesday. a 29.6 inch surface low will then track 
northeast across ontario and quebec, eventually pushing its trailing 
cold front across the lake thursday night and friday.


loz063>065-061500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
409 am edt mon apr 6 2026

.today...west winds 15 to 20 knots diminishing to around
10 knots. a chance of snow showers this morning. waves 5 to
8 feet subsiding to 2 to 4 feet. waves occasionally around
10 feet. 
.tonight...west winds 5 to 10 knots becoming northwest and
increasing to 15 to 25 knots after midnight. a chance of snow
showers late in the evening. snow showers likely after midnight.
waves 1 to 3 feet building to 3 to 5 feet. 
.tuesday...north winds 15 to 25 knots becoming west. snow showers
likely in the morning, then a chance of snow showers in the
afternoon. waves 4 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 9 feet. 
.tuesday night...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...southwest winds 5 to 10 knots becoming south and
increasing to 15 to 25 knots. waves 1 to 3 feet building to 3 to
5 feet. 
.thursday...south winds 15 to 25 knots increasing to 30 knots. a
chance of rain showers thursday night. waves 3 to 6 feet building
to 4 to 7 feet. waves occasionally around 9 feet. 
.friday...south winds 15 to 20 knots becoming west 5 to 15 knots.
a chance of showers. waves 3 to 5 feet subsiding to 1 to 3 feet. 

$$