fzus61 kbuf 290202
glflo 
expires:202510290900;;936497

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt tue oct 28 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...an expansive 30.5 inch high will remain anchored 
over quebec through wednesday before weakening wednesday night. a 
surface low will then approach the lake from the south thursday 
while strengthening to 29.3 inches. the low will then cross the lake 
thursday night while continuing to strengthen, before tracking 
northeast of the lake on friday and into the canadian maritimes by 
saturday, deepening to 28.6 inches by saturday. a large 30.2 inch 
surface high will build south of the region through sunday.


loz063>065-290900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt tue oct 28 2025

.overnight...northeast winds 15 to 25 knots becoming east.
waves 3 to 6 feet. 
.wednesday...northeast winds 5 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.wednesday night...northeast winds 5 to 10 knots becoming
southeast. a chance of rain overnight. waves 2 feet or less. 
.thursday...southeast winds 10 to 15 knots becoming northeast and
increasing to 30 knots in the afternoon. rain. waves 2 feet or
less building to 5 to 8 feet. waves occasionally around 10 feet. 
.thursday night...northeast winds to 30 knots becoming north
15 to 25 knots. rain. waves 5 to 9 feet. waves occasionally
around 11 feet. 
.friday...northwest winds to 30 knots increasing to 35 knot
gales. showers. waves 6 to 9 feet building to 11 to 15 feet.
waves occasionally around 19 feet. 
.saturday...northwest winds to 30 knots diminishing to 15 to
25 knots. showers likely. waves 9 to 12 feet subsiding to 3 to
5 feet. waves occasionally around 15 feet. 
.sunday...northwest winds 10 to 15 knots becoming southwest 15 to
20 knots. a chance of showers during the day, then showers likely
sunday night. waves 1 to 3 feet building to 2 to 4 feet. 

$$

fzus61 kbuf 290202
glfsl 
expires:202510290900;;936495

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 pm edt tue oct 28 2025


slz022-024-290900-
saint lawrence river from cape vincent to saint regis
1002 pm edt tue oct 28 2025

.overnight...northeast winds 5 to 15 knots. clear.
.wednesday...northeast winds 5 to 10 knots. sunny.
.wednesday night...northeast winds less than 10 knots. partly to
mostly cloudy. 
.thursday...east winds 10 knots or less becoming northeast. rain.
.thursday night...northeast winds 5 to 10 knots. rain.
.friday...north winds 5 to 15 knots becoming west. rain showers. 
.saturday...west winds 5 to 15 knots diminishing to less than
10 knots. rain showers during the day, then a chance of rain
showers saturday night. 
.sunday...west winds 10 knots or less becoming southwest. a
chance of rain showers. 

$$