fzus61 kbuf 082003
glfsl 
expires:202609090300;;127760

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 pm edt tue sep 8 2026


slz022-024-090300-
saint lawrence river from cape vincent to saint regis
403 pm edt tue sep 8 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 082002
glflo 
expires:202609090300;;127737

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt tue sep 8 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 30.2 inches continues to 
exit eastward before a cold front sweeps eastward across lake 
ontario wednesday night. behind the cold front, another ridge 
averaging 30.0 inches should build from the western great lakes 
through friday and then exit toward new england on saturday. a warm 
front should sweep northeastward across lake ontario saturday night 
and be followed by a cold front sweeping eastward across the lake 
later on sunday.


loz062-090300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt tue sep 8 2026

.tonight...east winds 5 to 10 knots becoming south. waves 2 feet
or less. 
.wednesday...south winds 5 to 15 knots becoming southwest 15 to
20 knots. a chance of showers in the morning, then showers likely
early in the afternoon. showers with a chance of thunderstorms
late. waves 1 to 3 feet. 
.wednesday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. showers with a chance of thunderstorms in the
evening. waves 2 to 4 feet. 
.thursday...west winds 10 to 15 knots. waves 1 to 3 feet. 
.thursday night...northwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 1 to 3 feet. 
.friday...northwest winds 10 knots or less becoming southeast.
waves 2 feet or less. 
.saturday...south winds 5 to 10 knots becoming southwest. a
chance of showers saturday night. waves 2 feet or less. 
.sunday...southwest winds 10 to 15 knots becoming northwest. a
chance of showers. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 082002
glflo 
expires:202609090300;;127738

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt tue sep 8 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 30.2 inches continues to 
exit eastward before a cold front sweeps eastward across lake 
ontario wednesday night. behind the cold front, another ridge 
averaging 30.0 inches should build from the western great lakes 
through friday and then exit toward new england on saturday. a warm 
front should sweep northeastward across lake ontario saturday night 
and be followed by a cold front sweeping eastward across the lake 
later on sunday.


loz063>065-090300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt tue sep 8 2026

.tonight...east winds 5 to 10 knots becoming south and increasing
to 15 to 20 knots. waves 2 feet or less. 
.wednesday...south winds 15 to 20 knots. a chance of showers late
in the morning. showers early in the afternoon, then showers with
a chance of thunderstorms late. waves 1 to 3 feet. 
.wednesday night...southwest winds 15 to 25 knots becoming west.
showers with a chance of thunderstorms in the evening, then a
chance of showers overnight. waves 2 to 4 feet building to 3 to
5 feet. 
.thursday...west winds 15 to 20 knots. waves 3 to 5 feet. 
.thursday night...northwest winds 15 to 20 knots becoming north
10 to 15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday...north winds 5 to 10 knots becoming south. waves 2 feet
or less. 
.saturday...south winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers saturday night. waves 1 to 3 feet
building to 2 to 4 feet. 
.sunday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$