fzus61 kbuf 062004
glfsl 
expires:202610070300;;643785

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
404 pm edt tue oct 6 2026


slz022-024-070300-
saint lawrence river from cape vincent to saint regis
404 pm edt tue oct 6 2026

.tonight...southwest winds 5 to 15 knots becoming south. mainly
clear this evening, then becoming mostly cloudy. 
.wednesday...south winds 10 to 15 knots becoming southwest. a
chance of showers early in the afternoon. showers likely late. 
.wednesday night...southwest winds 5 to 15 knots. a chance of
showers. 
.thursday...southwest winds 5 to 15 knots. a chance of showers in
the morning, then showers likely in the afternoon. 
.thursday night...west winds 5 to 10 knots. showers likely in the
evening. 
.friday...west winds 10 knots or less. partly cloudy. 
.saturday...southwest winds 10 knots or less becoming south.
becoming mainly clear. 
.sunday...southwest winds 5 to 15 knots. partly cloudy. 

$$

fzus61 kbuf 062003
glflo 
expires:202610070300;;643663

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt tue oct 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 30.2 inch high over the mid-alantic region will slide 
out to sea tonight through wednesday. a cold front will pass across 
the lake thursday. a 30.1 inch surface high will then ridge north 
across the lake friday, drifting off the coast over the weekend.


loz063>065-070300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 pm edt tue oct 6 2026

.tonight...southwest winds 10 to 15 knots becoming south 15 to
20 knots. waves 2 feet or less building to 3 to 5 feet. 
.wednesday...south winds 15 to 25 knots becoming southwest. a
chance of showers in the afternoon. waves 3 to 6 feet. 
.wednesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. showers likely. waves 3 to 5 feet subsiding to
2 to 4 feet. 
.thursday...west winds 15 to 20 knots. a chance of showers. waves
2 to 3 feet building to 3 to 6 feet. 
.thursday night...west winds 15 to 20 knots. a chance of showers.
waves 3 to 5 feet. 
.friday...west winds 15 to 20 knots diminishing to 5 to 15 knots.
waves 3 to 5 feet subsiding to 1 to 3 feet. 
.saturday...south winds 5 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.sunday...south winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers sunday night. waves 1 to 3 feet. 

$$