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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est wed jan 21 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 29.8 inch low will move from the upper great lakes to 
central quebec through thursday, then to the canadian maritimes 
friday. this low will push a series of cold fronts across the lake, 
with the first passing this evening, a second arctic cold front 
across the lake thursday morning, followed by a reinforcing tertiary 
front late thursday night into friday morning. at the same time, a 
large 31.1 inch high will build from northwestern canada to the 
northern plains states, with the high then weakening to 30.7 inches 
as it slides eastward across the great lakes and new england over 
the weekend and into monday.


loz062-221000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est wed jan 21 2026

...gale warning in effect through friday evening...

.rest of tonight...southwest winds to 30 knots. snow showers
likely late this evening, then a chance of snow showers after
midnight. waves 7 to 11 feet. waves occasionally around 14 feet. 
.thursday...west winds to 30 knots increasing to 40 knot gales. a
chance of snow showers. waves 8 to 11 feet building to 12 to
16 feet. waves occasionally around 20 feet. 
.thursday night...west gales to 35 knots. a chance of snow
showers in the evening, then lake effect snow showers likely
overnight. waves 10 to 15 feet. waves occasionally around
19 feet. 
.friday...west gales to 35 knots becoming northwest and
diminishing to 30 knots in the afternoon. lake effect snow
showers likely. waves 10 to 14 feet. waves occasionally around
18 feet. 
.friday night...northwest winds to 30 knots diminishing to 15 to
20 knots. snow showers likely in the evening, then a chance of
snow showers overnight. waves 8 to 11 feet subsiding to 2 to
4 feet. waves occasionally around 14 feet. 
.saturday...north winds 5 to 15 knots becoming east. a chance of
snow showers during the day, then a chance of snow saturday
night. waves 1 to 3 feet. 
.sunday...east winds 15 to 25 knots becoming northeast. snow
likely. waves 3 to 6 feet. 
.monday...north winds 15 to 25 knots becoming west. a chance of
snow showers during the day. waves 3 to 6 feet building to 5 to
8 feet. waves occasionally around 10 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est wed jan 21 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 29.8 inch low will move from the upper great lakes to 
central quebec through thursday, then to the canadian maritimes 
friday. this low will push a series of cold fronts across the lake, 
with the first passing this evening, a second arctic cold front 
across the lake thursday morning, followed by a reinforcing tertiary 
front late thursday night into friday morning. at the same time, a 
large 31.1 inch high will build from northwestern canada to the 
northern plains states, with the high then weakening to 30.7 inches 
as it slides eastward across the great lakes and new england over 
the weekend and into monday.


loz063>065-221000-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm est wed jan 21 2026

...gale warning in effect through friday evening...

.rest of tonight...southwest winds to 30 knots. snow showers
likely, then a chance of snow showers late. waves 7 to 11 feet
building to 10 to 13 feet. waves occasionally around 16 feet. 
.thursday...southwest gales to 35 knots becoming west to
40 knots. a chance of lake effect snow showers early, then lake
effect snow showers likely from late morning on. waves 10 to
15 feet building to 14 to 19 feet. waves occasionally around
24 feet. 
.thursday night...west gales to 40 knots diminishing to 35 knots.
lake effect snow. waves 14 to 19 feet subsiding to 13 to 17 feet.
waves occasionally around 24 feet. 
.friday...west gales to 35 knots. lake effect snow showers. waves
12 to 17 feet. waves occasionally around 22 feet. 
.friday night...northwest gales to 35 knots diminishing to 15 to
25 knots overnight. lake effect snow showers. waves 11 to 15 feet
subsiding to 4 to 7 feet. waves occasionally around 19 feet. 
.saturday...north winds 15 to 20 knots becoming east 5 to
15 knots. a chance of snow showers during the day, then a chance
of snow saturday night. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.sunday...east winds 15 to 20 knots. snow likely. waves 2 to
4 feet building to 3 to 6 feet. 
.monday...north winds 15 to 25 knots becoming west to 30 knots. a
chance of snow showers. waves 3 to 5 feet building to 6 to
9 feet. waves occasionally around 11 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
925 pm est wed jan 21 2026

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 reinforcing cold front will cross lake erie late tonight with a
trough averaging 30.10 inches lingering in its wake into thursday.
an arctic cold front will move across the area late thursday 
night into early friday morning. strong high pressure 30.70 
inches will build into the great lakes region friday and persist 
through early next week.


lez165>168-220915-
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-
925 pm est wed jan 21 2026

.rest of tonight...southwest winds to 30 knots. snow showers late
this evening, then a slight chance of snow showers after
midnight. a chance of snow showers late. the lake is mostly ice
covered.
.thursday...west winds to 30 knots. a slight chance of snow
showers in the morning. 
.thursday night...west winds 15 to 25 knots. 
.friday...west winds 15 to 25 knots. heavy freezing spray in the
morning. 
.friday night...northwest winds 15 to 20 knots diminishing to
5 to 15 knots. 
.saturday...northwest winds 5 to 15 knots becoming east 15 to
20 knots. snow likely saturday night. 
.sunday...east winds 15 to 20 knots becoming northwest 10 to
15 knots. snow likely during the day, then a chance of snow
sunday night. 
.monday...northwest winds 15 to 20 knots becoming west. 

waves omitted due to the lake being mostly ice covered.

$$

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open lake forecast for lake erie
national weather service cleveland oh
925 pm est wed jan 21 2026

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 reinforcing cold front will cross lake erie late tonight with a
trough averaging 30.10 inches lingering in its wake into thursday.
an arctic cold front will move across the area late thursday 
night into early friday morning. strong high pressure 30.70 
inches will build into the great lakes region friday and persist 
through early next week.


lez061-169-220915-
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-
925 pm est wed jan 21 2026

.rest of tonight...southwest winds to 30 knots. snow showers late
this evening, then a chance of snow showers after midnight. snow
showers likely late. waves in ice free areas 5 to 9 feet building
to 7 to 10 feet. waves in ice free areas occasionally around
13 feet. 
.thursday...west winds to 30 knots. snow showers likely early,
then a chance of snow showers. a slight chance of snow showers
late. waves 7 to 11 feet. waves occasionally around 14 feet. 
.thursday night...west winds to 30 knots. heavy freezing spray
overnight. a chance of snow showers overnight. waves 6 to
10 feet. waves occasionally around 13 feet. 
.friday...west winds to 30 knots. heavy freezing spray. waves
5 to 9 feet. waves occasionally around 11 feet. 
.friday night...west winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. heavy freezing spray in the
evening. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.saturday...northwest winds 5 to 15 knots becoming east. a chance
of snow saturday night. waves 2 feet or less. 
.sunday...east winds 10 to 15 knots becoming north. snow likely
during the day, then a chance of snow sunday night. waves 1 to
3 feet. 
.monday...northwest winds 15 to 20 knots becoming west. waves
2 to 4 feet building to 3 to 6 feet. 

wave heights are for ice free areas.

$$