fzus61 kbuf 041403
glfsl 
expires:202609042100;;892048

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1003 am edt fri sep 4 2026


slz022-024-042100-
saint lawrence river from cape vincent to saint regis
1003 am edt fri sep 4 2026

.this afternoon...northwest winds 10 knots or less. partly to
mostly sunny. 
.tonight...northwest winds less than 10 knots becoming north.
partly cloudy. 
.saturday...north winds 10 knots or less becoming northeast.
partly sunny. 
.saturday night...northeast winds 10 knots or less. partly
cloudy. 
.sunday...northeast winds 5 to 10 knots becoming light and
variable. partly cloudy, then becoming clear. 
.monday...light and variable winds. mainly clear, then becoming
mostly cloudy. 
.tuesday...north winds 10 knots or less becoming southeast.
partly to mostly cloudy. 

$$

fzus61 kbuf 041402
glflo 
expires:202609042100;;891996

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri sep 4 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 high pressure ridge averaging 30.1 inches builds gradually from 
northern ontario through monday. during monday night, a cold front 
will sweep southward across lake ontario. behind the front, another 
ridge averaging 30.1 inches builds from near james bay through 
tuesday. on wednesday, the ridge should exit southeastward and allow 
a warm front to sweep northeastward across lake ontario.


loz062-042100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt fri sep 4 2026

.this afternoon...northwest winds 10 knots or less becoming west.
waves 1 foot or less. 
.tonight...west winds 5 to 10 knots becoming northeast. waves
1 foot or less. 
.saturday...northeast winds around 10 knots becoming light and
variable. waves 1 foot or less. 
.saturday night...light and variable winds becoming northeast
around 10 knots. waves 2 feet or less. 
.sunday...northeast winds 10 to 15 knots becoming light and
variable. waves 2 feet or less. 
.monday...light and variable winds. waves 1 foot or less. 
.tuesday...northeast winds 5 to 15 knots becoming southeast. a
chance of showers tuesday night. waves 2 feet or less. 

$$

fzus61 kbuf 041402
glflo 
expires:202609042100;;891997

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri sep 4 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 high pressure ridge averaging 30.1 inches builds gradually from 
northern ontario through monday. during monday night, a cold front 
will sweep southward across lake ontario. behind the front, another 
ridge averaging 30.1 inches builds from near james bay through 
tuesday. on wednesday, the ridge should exit southeastward and allow 
a warm front to sweep northeastward across lake ontario.


loz063>065-042100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt fri sep 4 2026

.this afternoon...northwest winds 10 knots or less becoming west.
waves 1 foot or less. 
.tonight...west winds 5 to 10 knots becoming northeast. waves
2 feet or less. 
.saturday...north winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...north winds 5 to 15 knots becoming northeast.
waves 1 to 3 feet. 
.sunday...northeast winds 5 to 15 knots diminishing to less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.monday...northwest winds 10 knots or less. waves 1 foot or less.
.tuesday...northeast winds 5 to 15 knots becoming southeast.
waves 1 foot or less. 

$$