fzus61 kbuf 292003
glflo 
expires:202609300300;;263722

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt tue sep 29 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 low along the southern shores maine, will 
dissipate over the north atlantic wednesday as a 30.1 inch high 
builds to just off the mid atlantic coast. a cold front over the 
upper great lakes wednesday night will cross the lower great lakes 
thursday night. a 30.4 inch high is then forecast to build into the 
upper great lakes friday and the lower great lakes by saturday, 
before exiting into northern maine sunday. meanwhile, a cold front 
will then cross the eastern great lakes sunday into monday.


loz063>065-300300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 pm edt tue sep 29 2026

.tonight...east winds 5 to 10 knots becoming south. waves 1 foot
or less. 
.wednesday...south winds 5 to 15 knots. waves 2 feet or less. 
.wednesday night...south winds 5 to 15 knots. waves 2 feet or
less. 
.thursday...southwest winds 15 to 20 knots. a chance of showers.
waves 1 to 3 feet building to 2 to 4 feet. 
.thursday night...southwest winds 5 to 15 knots becoming west. a
chance of showers in the evening, then showers likely overnight.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...west winds 5 to 15 knots becoming north 15 to 20 knots.
showers. waves 1 to 3 feet building to 2 to 4 feet. 
.saturday...north winds 5 to 15 knots becoming southeast. waves
1 to 3 feet subsiding to 1 foot or less. 
.sunday...south winds 10 to 15 knots becoming west 15 to
20 knots. a chance of showers. waves 1 to 3 feet building to 3 to
5 feet. 

$$

fzus61 kbuf 292003
glfsl 
expires:202609300300;;263765

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 pm edt tue sep 29 2026


slz022-024-300300-
saint lawrence river from cape vincent to saint regis
403 pm edt tue sep 29 2026

.tonight...southeast winds less than 10 knots becoming south.
partly cloudy. 
.wednesday...south winds 10 knots or less becoming southwest.
mostly cloudy. 
.wednesday night...southwest winds 10 knots or less. mostly
cloudy. 
.thursday...southwest winds 5 to 15 knots. mostly sunny in the
morning, then becoming mostly cloudy. 
.thursday night...southwest winds 10 knots or less. a chance of
showers in the evening, then showers likely overnight. 
.friday...west winds less than 10 knots becoming northwest.
showers likely during the day, then a chance of showers friday
night. 
.saturday...northwest winds less than 10 knots. mainly clear,
then becoming partly cloudy. 
.sunday...southeast winds 10 knots or less becoming west. a
chance of rain showers sunday night. 

$$