fzus61 kbuf 072003
glfsl 
expires:202607080300;;583146

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 pm edt tue jul 7 2026


slz022-024-080300-
saint lawrence river from cape vincent to saint regis
403 pm edt tue jul 7 2026

.tonight...east winds less than 10 knots becoming south. mainly
clear early, then becoming partly cloudy. 
.wednesday...south winds 10 knots or less becoming southwest.
mostly sunny. 
.wednesday night...southwest winds 10 knots or less. partly
cloudy. 
.thursday...southwest winds 10 knots or less becoming west. a
chance of showers in the morning, then showers with a chance of
thunderstorms in the afternoon. 
.thursday night...southwest winds 5 to 10 knots becoming light
and variable. showers with a chance of thunderstorms in the
evening, then showers overnight. 
.friday...northwest winds less than 10 knots becoming north. a
chance of showers during the day. 
.saturday...north winds less than 10 knots. mainly clear. 
.sunday...light and variable winds. mainly clear, then becoming
partly cloudy. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 072002
glflo 
expires:202607080300;;583108

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt tue jul 7 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 29.9 inch low continues to move off the southern new 
england coast, while a broad 30.1 inch high builds across the lower 
great lakes tonight through wednesday. a weak cold front will cross 
the lake thursday night through early friday with another 30.1 inch 
high building across the upper great lakes friday and the lower 
great lakes by saturday night.


loz062-080300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt tue jul 7 2026

.tonight...east winds 10 knots or less. waves 2 feet or less. 
.wednesday...southeast winds less than 10 knots. waves 1 foot or
less. 
.wednesday night...southeast winds 10 knots or less becoming
southwest. waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots. a chance of showers
and thunderstorms in the afternoon. waves 2 feet or less. 
.thursday night...southwest winds 5 to 15 knots becoming west.
showers likely with a chance of thunderstorms in the evening,
then showers likely overnight. waves 1 to 2 feet. 
.friday...northwest winds 10 knots or less becoming northeast. a
chance of showers during the day. waves 1 foot or less. 
.saturday...northeast winds 10 knots or less becoming east. waves
1 foot or less. 
.sunday...east winds 10 knots or less becoming southwest. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 072002
glflo 
expires:202607080300;;583109

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt tue jul 7 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 29.9 inch low continues to move off the southern new 
england coast, while a broad 30.1 inch high builds across the lower 
great lakes tonight through wednesday. a weak cold front will cross 
the lake thursday night through early friday with another 30.1 inch 
high building across the upper great lakes friday and the lower 
great lakes by saturday night.


loz063>065-080300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt tue jul 7 2026

.tonight...east winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.wednesday...south winds 10 knots or less becoming north. waves
1 foot or less. 
.wednesday night...southwest winds 10 knots or less. waves 1 foot
or less. 
.thursday...southwest winds 5 to 10 knots. waves 1 foot or less. 
.thursday night...southwest winds 5 to 10 knots becoming west.
showers likely. waves 2 feet or less. 
.friday...northwest winds 5 to 10 knots becoming northeast.
showers likely during the day. waves 2 feet or less. 
.saturday...northeast winds 10 knots or less becoming east. waves
1 foot or less. 
.sunday...southeast winds 10 knots or less becoming southwest.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$