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open lake forecast for lake ontario
national weather service buffalo ny
1002 am est tue nov 11 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 29.0 inch low will linger over eastern quebec today, 
deepening to 28.2 inches at it then slowly advances towards 
newfoundland wednesday. another 29.2 inch low will develop south of 
nova scotia thursday, then move north across the canadian maritimes 
friday, remaining in place through saturday. meanwhile, a 30.1 inch 
high will then build from northwest ontario province friday to james 
bay and the lower great lakes by saturday.


loz062-112200-
lake ontario open waters from the niagara river to hamlin beach-
1002 am est tue nov 11 2025

.rest of today...northwest winds to 30 knots becoming west. snow
late this morning, then a chance of snow showers early this
afternoon. a chance of rain showers late. waves 5 to 9 feet.
waves occasionally around 11 feet. 
.tonight...west winds 15 to 25 knots becoming southwest. a chance
of rain showers early, then lake effect rain showers late in the
evening. lake effect rain and snow showers after midnight. waves
5 to 8 feet. waves occasionally around 10 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west. lake
effect rain showers. waves 3 to 6 feet building to 5 to 8 feet.
waves occasionally around 10 feet. 
.wednesday night...west winds 20 to 25 knots. showers. waves 6 to
9 feet. waves occasionally around 11 feet. 
.thursday...west winds to 30 knots diminishing to 15 to 20 knots.
showers likely. waves 6 to 9 feet subsiding to 3 to 5 feet. waves
occasionally around 11 feet. 
.friday...northwest winds 10 to 15 knots becoming north. a chance
of rain showers during the day. waves 1 to 3 feet. 
.saturday...northeast winds 5 to 15 knots becoming southeast. a
chance of rain showers saturday night. waves 2 feet or less. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 am est tue nov 11 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 29.0 inch low will linger over eastern quebec today, 
deepening to 28.2 inches at it then slowly advances towards 
newfoundland wednesday. another 29.2 inch low will develop south of 
nova scotia thursday, then move north across the canadian maritimes 
friday, remaining in place through saturday. meanwhile, a 30.1 inch 
high will then build from northwest ontario province friday to james 
bay and the lower great lakes by saturday.


loz063>065-112200-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am est tue nov 11 2025

.rest of today...northwest winds to 30 knots becoming west. snow
late this morning, then a chance of snow and rain showers early
this afternoon. a chance of rain showers late. waves 7 to
11 feet. waves occasionally around 14 feet. 
.tonight...west winds to 30 knots becoming southwest. rain
showers likely in the evening, then lake effect rain showers with
lake effect snow showers likely after midnight. waves 7 to
11 feet subsiding to 6 to 9 feet. waves occasionally around
14 feet. 
.wednesday...southwest winds 20 to 25 knots becoming west. lake
effect rain showers with lake effect snow showers likely in the
morning, then lake effect rain showers in the afternoon. waves
5 to 8 feet building to 6 to 9 feet. waves occasionally around
11 feet. 
.wednesday night...west winds to 30 knots. lake effect showers.
waves 6 to 10 feet. waves occasionally around 13 feet. 
.thursday...west winds to 30 knots becoming northwest 15 to
25 knots. rain showers. waves 8 to 11 feet subsiding to 3 to
6 feet. waves occasionally around 14 feet. 
.friday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. rain showers likely during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.saturday...north winds 5 to 15 knots becoming southeast. a
chance of rain showers saturday night. waves 2 feet or less. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1002 am est tue nov 11 2025


slz022-112200-
saint lawrence river from cape vincent to ogdensburg-
1002 am est tue nov 11 2025

.rest of today...west winds 5 to 10 knots. a chance of snow
showers late this morning. 
.tonight...west winds 5 to 15 knots becoming southwest. a chance
of snow showers late in the evening. snow showers likely after
midnight, then lake effect snow and rain showers late. 
.wednesday...south winds 5 to 15 knots becoming southwest. lake
effect snow and rain showers. 
.wednesday night...southwest winds 5 to 10 knots becoming west.
rain showers in the evening, then rain showers with a chance of
snow showers overnight. 
.thursday...west winds 10 knots or less. rain and snow showers
likely during the day, then a chance of rain and snow showers
thursday night. 
.friday...northwest winds 10 knots or less. a chance of snow and
rain showers during the day. 
.saturday...northwest winds less than 10 knots becoming
southeast. a chance of rain and snow showers saturday night. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
1035 am est tue nov 11 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 ridge averaging 30.00 inches will build in from the south over
lake erie today, followed by a warm front tonight and a cold 
front wednesday. a ridge averaging 30.10 inches builds back in
from the south thursday into thursday night.


lez061-166>169-112115-
ripley to buffalo ny extending from 5nm 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-
1035 am est tue nov 11 2025

...gale warning in effect from 7 pm est this evening through late
tonight...

.rest of today...west winds to 30 knots. rain likely with snow
late this morning, then a chance of rain this afternoon. waves
7 to 10 feet. waves occasionally around 13 feet. 
.tonight...southwest gales to 35 knots. rain and snow likely in
the evening, then rain likely after midnight. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.wednesday...west winds to 30 knots. rain. waves 7 to 11 feet.
waves occasionally around 14 feet. 
.wednesday night...west winds to 30 knots. a chance of rain.
waves 7 to 11 feet subsiding to 6 to 9 feet. waves occasionally
around 14 feet. 
.thursday...west winds 15 to 25 knots. a chance of rain during
the day. waves 5 to 8 feet subsiding to 2 to 4 feet. waves
occasionally around 10 feet. 
.friday...northwest winds 5 to 15 knots becoming east. waves 1 to
3 feet. 
.saturday...southeast winds 10 to 15 knots becoming southwest
15 to 20 knots. a chance of rain. waves 1 to 3 feet building to
3 to 5 feet. 

$$