fzus61 kbuf 251403
glfsl 
expires:202608252100;;337547

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 am edt tue aug 25 2026


slz022-024-252100-
saint lawrence river from cape vincent to saint regis
1002 am edt tue aug 25 2026

.this afternoon...west winds less than 10 knots. a chance of
showers. 
.tonight...west winds less than 10 knots. a chance of showers
early. patchy fog from late evening on. 
.wednesday...light and variable winds. patchy fog in the morning.
.wednesday night...light and variable winds becoming south 5 to
10 knots. partly cloudy. 
.thursday...south winds 5 to 15 knots becoming southwest. showers
likely with a chance of thunderstorms. 
.friday...northwest winds less than 10 knots. mostly cloudy, then
clearing. 
.saturday...light and variable winds. mainly clear. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 251402
glflo 
expires:202608252100;;337505

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt tue aug 25 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 ridge averaging 30.1 inches will build from the 
western and central great lakes through wednesday. the ridge will 
exit eastward wednesday night through thursday morning and allow a 
warm front to sweep northeastward across lake ontario before a cold 
front sweeps eastward across the lake thursday evening through 
thursday night. behind the cold front, a high pressure ridge 
averaging 30.0 inches should build from the upper midwest through 
saturday and then begin to exit eastward on sunday.


loz063>065-252100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt tue aug 25 2026

.this afternoon...northwest winds 10 to 15 knots becoming west. a
chance of showers. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tonight...west winds 10 knots or less. waves 2 feet or less. 
.wednesday...southwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.wednesday night...east winds 5 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 20 knots becoming west 5 to
15 knots. showers likely with a chance of thunderstorms. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.friday...northwest winds 5 to 10 knots becoming north. waves
2 feet or less. 
.saturday...north winds 10 knots or less becoming south. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$