fzus61 kbuf 310803
glflo 
expires:202605311500;;938814

open lake forecast for lake ontario
national weather service buffalo ny
403 am edt sun may 31 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 nosing southward across lake erie this 
early sunday morning will slide towards the southeast tonight. this 
will allow a back door cold front to clip the eastern lake waters 
this afternoon and evening, this from a 29.8 inch area of low 
pressure that will push south across southern quebec and new england 
through tonight. this low will then push off the new england 
coastline on monday. another 30.4 inch high centered over hudson bay 
monday night will then build south across the entire great lakes 
region tuesday and wednesday, then into the ohio valley and lower 
great lakes by thursday.


loz063>065-311500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 am edt sun may 31 2026

.today...west winds 10 to 15 knots increasing to 15 to 20 knots.
a chance of showers late. waves 1 to 3 feet building to 3 to
5 feet. 
.tonight...west winds 15 to 20 knots becoming northwest and
diminishing to 5 to 10 knots. a chance of showers in the evening.
waves 2 to 4 feet subsiding to 1 to 2 feet. 
.monday...north winds 5 to 10 knots. waves 1 foot or less. 
.monday night...north winds 10 knots or less. waves 1 foot or
less. 
.tuesday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.wednesday...west winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots. waves 2 feet or less. 

$$

fzus61 kbuf 310803
glfsl 
expires:202605311500;;938873

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 am edt sun may 31 2026


slz022-024-311500-
saint lawrence river from cape vincent to saint regis
403 am edt sun may 31 2026

.today...southwest winds 10 knots or less becoming northwest. a
chance of showers this afternoon. 
.tonight...northwest winds less than 10 knots. showers likely
early, then a chance of showers late in the evening. 
.monday...north winds less than 10 knots becoming northeast.
sunny.
.monday night...northeast winds less than 10 knots. mainly clear.
.tuesday...northwest winds less than 10 knots. partly cloudy. 
.wednesday...light and variable winds. mainly clear. 
.thursday...southwest winds 10 knots or less. mainly clear, then
becoming partly cloudy. 

$$