fzus61 kbuf 292003
glfsl 
expires:202604300300;;744668

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


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

.tonight...northeast winds 5 to 10 knots becoming west. rain.
.thursday...west winds 5 to 10 knots. rain likely early, then a
chance of showers late in the morning. a chance of showers late. 
.thursday night...northwest winds 10 knots or less. a chance of
rain showers in the evening. 
.friday...northwest winds 5 to 10 knots becoming west. a chance
of rain showers in the afternoon. 
.friday night...southwest winds 10 knots or less. a chance of
rain showers in the evening. 
.saturday...west winds 5 to 15 knots becoming southwest less than
10 knots. a chance of rain showers during the day. 
.sunday...southwest winds 5 to 15 knots. partly to mostly cloudy.
.monday...southwest winds 5 to 10 knots becoming south. rain
showers likely. 

$$

fzus61 kbuf 292002
glflo 
expires:202604300300;;744619

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt wed apr 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...an elongated 29.9 inch low over the upper ohio valley 
will deepen to 29.7 inches as it tracks to near watertown by early 
this evening. this low will then lift out across quebec tonight and 
thursday while another 29.6 inch low develops and tracks northeast 
off the mid-atlantic and new england coastlines. this second low 
will then retrograde northward and then northwestward across the 
canadian maritimes and quebec respectively friday and saturday. a 
third 29.5 inch low will then track from the southeastern states 
northeastward into the western atlantic saturday through sunday... 
while a 29.8 inch high ridges across the lower great lakes.


loz062-300300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt wed apr 29 2026

.tonight...northwest winds 10 to 15 knots becoming west. rain
this evening. waves 1 to 3 feet. 
.thursday...west winds 10 to 15 knots increasing to 15 to
20 knots. waves 2 to 4 feet. 
.thursday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...west winds 10 to 15 knots. waves 1 to 2 feet. 
.friday night...west winds around 10 knots. waves 1 to 2 feet. 
.saturday...west winds 10 to 15 knots. waves 1 to 2 feet. 
.sunday...west winds 10 to 15 knots becoming southwest. waves
1 to 3 feet. 
.monday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. showers likely. waves 2 to 4 feet subsiding to 1 to
3 feet. 

$$

fzus61 kbuf 292002
glflo 
expires:202604300300;;744620

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt wed apr 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...an elongated 29.9 inch low over the upper ohio valley 
will deepen to 29.7 inches as it tracks to near watertown by early 
this evening. this low will then lift out across quebec tonight and 
thursday while another 29.6 inch low develops and tracks northeast 
off the mid-atlantic and new england coastlines. this second low 
will then retrograde northward and then northwestward across the 
canadian maritimes and quebec respectively friday and saturday. a 
third 29.5 inch low will then track from the southeastern states 
northeastward into the western atlantic saturday through sunday... 
while a 29.8 inch high ridges across the lower great lakes.


loz063>065-300300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt wed apr 29 2026

.tonight...north winds 10 to 15 knots becoming west. rain through
the early overnight, then a chance of showers late. waves 1 to
3 feet. 
.thursday...west winds 10 to 15 knots increasing to 15 to
20 knots. waves 2 to 4 feet building to 3 to 5 feet. 
.thursday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday...west winds 10 to 15 knots. waves 1 to 3 feet. 
.friday night...west winds 10 to 15 knots. waves 1 to 3 feet. 
.saturday...west winds 5 to 15 knots. waves 1 to 3 feet. 
.sunday...west winds 10 to 15 knots becoming southwest. waves
1 to 3 feet. 
.monday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. showers likely. waves 1 to 3 feet. 

$$