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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt thu oct 23 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 broad 29.4 inch low over central quebec this morning 
will slowly move north into northern quebec by friday. a 30.4 inch 
high will then move from the upper mississippi valley friday to the 
great lakes saturday, then expand across new england and quebec 
sunday.


loz062-231500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt thu oct 23 2025

.today...west winds 15 to 25 knots. a chance of waterspouts. a
chance of showers through early afternoon, then showers likely
late. waves 5 to 8 feet subsiding to 2 to 4 feet. waves
occasionally around 10 feet. 
.tonight...northwest winds 15 to 20 knots becoming west. a chance
of waterspouts. a chance of showers through the early overnight,
then lake effect showers likely late. waves 2 to 4 feet. 
.friday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of waterspouts in the morning. showers likely.
waves 2 to 4 feet. 
.friday night...northwest winds 10 to 15 knots. a chance of
showers. waves 1 to 3 feet. 
.saturday...northwest winds 5 to 10 knots becoming north. a
chance of showers during the day. waves 2 feet or less. 
.sunday...northeast winds 5 to 10 knots becoming east. waves
2 feet or less. 
.monday...east winds 10 to 15 knots increasing to 15 to 20 knots.
waves 1 to 3 feet building to 2 to 4 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt thu oct 23 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 broad 29.4 inch low over central quebec this morning 
will slowly move north into northern quebec by friday. a 30.4 inch 
high will then move from the upper mississippi valley friday to the 
great lakes saturday, then expand across new england and quebec 
sunday.


loz063>065-231500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt thu oct 23 2025

.today...southwest winds 15 to 25 knots becoming west. a chance
of waterspouts. lake effect rain with a few rumbles of thunder
possible early, then lake effect showers likely from late morning
on. waves 5 to 9 feet subsiding to 3 to 6 feet. waves
occasionally around 11 feet. 
.tonight...west winds 15 to 20 knots. a chance of waterspouts.
lake effect showers likely through the early overnight, then lake
effect rain late. waves 3 to 5 feet. 
.friday...west winds 15 to 20 knots. a chance of waterspouts.
lake effect rain with a few rumbles of thunder possible in the
morning, then lake effect showers with a few rumbles of thunder
possible in the afternoon. waves 3 to 5 feet subsiding to 2 to
4 feet. 
.friday night...northwest winds 15 to 20 knots diminishing to
5 to 15 knots. showers likely. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.saturday...northwest winds 5 to 10 knots becoming north. showers
likely during the day, then a chance of showers saturday night.
waves 2 feet 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. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
354 am edt thu oct 23 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 surface trough averaging 29.90 inches lingers across the lake
through friday. high pressure 30.40 inches builds towards the ohio
valley and great lakes region friday night through the weekend
before exiting on monday. 


lez061-165>169-231430-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
354 am edt thu oct 23 2025

.today...west winds 15 to 25 knots becoming northwest. a chance
of waterspouts. showers likely with a slight chance of
thunderstorms this morning, then showers likely early this
afternoon. a chance of showers with a slight chance of
thunderstorms late. waves 5 to 8 feet. waves occasionally around
10 feet. 
.tonight...northwest winds 15 to 20 knots. a chance of
waterspouts. showers likely. waves 3 to 6 feet. 
.friday...northwest winds 15 to 20 knots. a chance of waterspouts
in the morning. showers likely in the morning, then a chance of
showers in the afternoon. waves 3 to 6 feet. 
.friday night...northwest winds 15 to 20 knots diminishing to
5 to 15 knots. showers. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.saturday...northwest winds 10 knots or less becoming northeast.
a chance of showers. waves 1 foot or less. 
.sunday...east winds 5 to 15 knots increasing to 15 to 20 knots.
waves 1 foot or less building to 1 to 3 feet. 
.monday...east winds 15 to 25 knots. waves 2 to 4 feet building
to 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

$$