fzus61 kbuf 201502
glflo 
expires:202511202200;;199569

open lake forecast for lake ontario
national weather service buffalo ny
1002 am est thu nov 20 2025

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 30.3 inch high over the lower great lakes will slide 
out across new england through tonight. a 29.5 inch surface low near 
james bay will swing a cold front east across the lake friday, with 
a 30.1 inch high building over the ohio valley and lower great lakes 
saturday. a 29.5 inch low will then move from northern ontario to 
james bay sunday, while pushing its warm front across the lake 
saturday night, followed by its trailing cold front sunday. a 30.2 
inch high is forecast to build across the ohio valley monday.


loz064-065-202200-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 am est thu nov 20 2025

.this afternoon...southeast winds 10 knots or less. waves 1 foot
or less. 
.tonight...southeast winds 5 to 15 knots becoming southwest.
waves 1 to 3 feet. 
.friday...south winds 15 to 20 knots becoming west. a chance of
showers. waves 2 to 4 feet building to 3 to 5 feet. 
.friday night...west winds 10 to 15 knots becoming northwest. a
chance of rain showers in the evening. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.saturday...north winds 5 to 15 knots becoming west. waves 1 to
3 feet. 
.sunday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. a chance of rain showers. waves 1 to 3 feet building to
3 to 6 feet. 
.monday...northwest winds 15 to 20 knots becoming south 10 to
15 knots. a chance of rain showers. waves 3 to 6 feet subsiding
to 1 to 3 feet. 

$$

fzus61 kbuf 201502
glfsl 
expires:202511202200;;199543

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 am est thu nov 20 2025


slz022-202200-
saint lawrence river from cape vincent to ogdensburg-
1002 am est thu nov 20 2025

.this afternoon...light and variable winds. mostly cloudy, then
becoming mostly sunny. 
.tonight...east winds 10 knots or less becoming south. mainly
clear early, then becoming mostly cloudy. 
.friday...south winds 5 to 10 knots becoming southwest. rain
showers. 
.friday night...west winds 10 knots or less becoming northwest. a
chance of rain showers in the evening. 
.saturday...northwest winds less than 10 knots. partly to mostly
cloudy. 
.sunday...south winds 5 to 10 knots becoming west. a chance of
rain showers. 
.monday...west winds 10 knots or less becoming south. mostly
cloudy. 

$$

fzus61 kbuf 201502
glfsl 
expires:202511202200;;199544

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 am est thu nov 20 2025


slz024-202200-
saint lawrence river from ogdensburg to saint regis-
1002 am est thu nov 20 2025

.this afternoon...light and variable winds. mostly cloudy, then
becoming partly sunny. 
.tonight...light and variable winds. partly cloudy early, then
becoming mostly cloudy. 
.friday...south winds 5 to 10 knots becoming southwest. rain
showers. 
.friday night...west winds 10 knots or less. a chance of rain
showers in the evening. 
.saturday...northwest winds less than 10 knots. partly to mostly
cloudy. 
.sunday...southwest winds 10 knots or less becoming west. a
chance of rain showers. 
.monday...west winds 10 knots or less becoming southwest. mostly
cloudy. 

$$