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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt fri oct 24 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 29.5 inch low will move slowly north into northern 
quebec today. meanwhile, an elongated 30.3 inch high stretching from 
the lower ohio valley northwest to the upper great lakes will then 
move east into the central and lower great lakes saturday, before 
strengthening to 30.5 inches while expanding across new england and 
quebec sunday into monday. this large high will remain anchored 
across quebec through tuesday.


loz062-241500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt fri oct 24 2025

.today...west winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of waterspouts early. lake effect showers
likely early, then a chance of showers from late morning on.
waves 2 to 4 feet. 
.tonight...northwest winds 10 to 15 knots. a chance of showers in
the evening. waves 1 to 3 feet. 
.saturday...northwest winds 5 to 10 knots. waves 1 foot or less. 
.saturday night...northwest winds 5 to 10 knots becoming north.
waves 1 foot or less. 
.sunday...northeast winds 5 to 10 knots becoming east. a chance
of showers sunday night. waves 2 feet or less. 
.monday...east winds 10 to 15 knots increasing to 15 to 20 knots.
a chance of showers during the day. waves 1 to 3 feet building to
2 to 4 feet. 
.tuesday...east winds 15 to 20 knots. a chance of showers tuesday
night. waves 3 to 6 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt fri oct 24 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 29.5 inch low will move slowly north into northern 
quebec today. meanwhile, an elongated 30.3 inch high stretching from 
the lower ohio valley northwest to the upper great lakes will then 
move east into the central and lower great lakes saturday, before 
strengthening to 30.5 inches while expanding across new england and 
quebec sunday into monday. this large high will remain anchored 
across quebec through tuesday.


loz063>065-241500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt fri oct 24 2025

.today...west winds 15 to 20 knots. a chance of waterspouts
through early afternoon. lake effect showers with a few rumbles
of thunder possible this morning, then showers likely early this
afternoon. a chance of showers late. waves 2 to 4 feet. 
.tonight...northwest winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.saturday...north winds 5 to 10 knots becoming northwest. a
chance of showers in the morning. waves 2 feet or less. 
.saturday night...northwest winds 5 to 10 knots becoming
northeast. a chance of showers. waves 1 foot or less. 
.sunday...northeast winds 5 to 10 knots. a chance of rain showers
during the day. waves 2 feet or less. 
.monday...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet building to 2 to 4 feet. 
.tuesday...east winds 15 to 20 knots. waves 2 to 4 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 am edt fri oct 24 2025


slz022-024-241500-
saint lawrence river from cape vincent to saint regis
402 am edt fri oct 24 2025

.today...west winds 10 knots or less. a chance of rain showers
through early afternoon. 
.tonight...northwest winds 10 knots or less. partly cloudy. 
.saturday...northwest winds less than 10 knots becoming west.
partly sunny in the morning, then becoming mostly cloudy. 
.saturday night...northwest winds less than 10 knots. mostly
cloudy. 
.sunday...north winds less than 10 knots. partly to mostly
cloudy. 
.monday...northeast winds 10 knots or less. partly cloudy. 
.tuesday...northeast winds 10 knots or less. partly cloudy. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
347 am edt fri oct 24 2025

for waters beyond five nautical miles of shore on lake erie

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 weak trough averaging 30.20 inches exits eastward as a ridge 
averaging 30.40 inches builds from the west today. this ridge
affects lake erie and continues to average 30.40 inches tonight 
through this weekend as the ridge axis moves from near the western
great lakes toward eastern new york and vicinity. by monday and
tuesday of next week, a low should wobble generally eastward and 
then northeastward from the lower mississippi valley to atlantic 
waters near the outer banks and extend a trough averaging 30.20 
inches over the lake erie region. 


lez061-169-241430-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
347 am edt fri oct 24 2025

.today...northwest winds 15 to 20 knots becoming west. a chance
of waterspouts early. a chance of showers early, then a slight
chance of showers late this morning. a chance of showers this
afternoon. waves 2 to 4 feet. 
.tonight...northwest winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of showers early, then a slight chance of
showers from late evening on. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.saturday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.saturday night...west winds less than 10 knots becoming
northeast. a chance of showers. waves 1 foot or less. 
.sunday...northeast winds 5 to 15 knots becoming east. a chance
of showers during the day. waves 1 to 3 feet. 
.monday...east winds 15 to 20 knots. waves 1 to 3 feet building
to 3 to 5 feet, then subsiding to 2 to 4 feet. 
.tuesday...east winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers tuesday night. waves 1 to 3 feet
building to 2 to 4 feet. 

$$