fzus61 kbuf 102003
glflo 
expires:202610110300;;873597

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt sat oct 10 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 exits slowly 
eastward today through sunday before a weak trough averaging 29.8 
inches slides eastward across the lake sunday night. behind the 
trough, a weak ridge averaging 29.9 inches slides eastward across 
the lake on monday, exits eastward monday night, and is followed by 
a cold front sweeping southeastward across the lake on tuesday. 
behind the cold front, a ridge averaging 30.0 inches builds from 
northern ontario through thursday.


loz063>065-110300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 pm edt sat oct 10 2026

.tonight...east winds 10 to 15 knots becoming southeast 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.sunday...southeast winds 15 to 20 knots diminishing to 10 to
15 knots. rain in the afternoon. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.sunday night...southeast winds 10 knots or less becoming east.
rain. waves 2 feet or less. 
.monday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.monday night...southwest winds 5 to 15 knots becoming southeast.
a chance of showers overnight. waves 2 feet or less. 
.tuesday...south winds 15 to 20 knots becoming northwest. showers
with a chance of thunderstorms. waves 1 to 3 feet building to
3 to 5 feet. 
.wednesday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...north winds 10 to 15 knots becoming southeast 15 to
20 knots. a chance of showers thursday night. waves 1 to 3 feet
building to 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 102003
glfsl 
expires:202610110300;;873636

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
403 pm edt sat oct 10 2026


slz022-024-110300-
saint lawrence river from cape vincent to saint regis
403 pm edt sat oct 10 2026

.tonight...east winds 10 knots or less becoming south. partly
cloudy. 
.sunday...south winds 5 to 10 knots. a chance of rain late. 
.sunday night...south winds less than 10 knots. rain likely. 
.monday...light and variable winds. mostly cloudy. 
.monday night...northeast winds 10 knots or less becoming east
10 to 15 knots. showers.
.tuesday...east winds 5 to 15 knots becoming northwest. showers
with a chance of thunderstorms. 
.wednesday...northwest winds 10 knots or less. a chance of rain
showers during the day. 
.thursday...northwest winds 10 knots or less becoming east.
partly cloudy. 

winds and waves higher in and near thunderstorms.

$$