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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est tue dec 9 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 29.2 inch low will approach the region tonight and 
move just northwest of the lake wednesday. the region will be 
situated between a 29.1 inch low over the canadian maritimes and a 
30.1 inch high over the southern plains thursday. a 29.9 inch ridge 
of high pressure is expected to move into the great lakes region 
friday. a 29.8 inch low may move north of the lake on saturday, then 
30.2 inches will average across the lower great lakes region between 
the departing low to the east and a 30.7 inch high over the plains 
sunday.


loz062-101000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est tue dec 9 2025

.rest of tonight...southwest winds 15 to 25 knots becoming south.
rain and snow. waves 4 to 7 feet subsiding to 3 to 5 feet. waves
occasionally around 9 feet. 
.wednesday...south winds 15 to 25 knots becoming west. snow and
rain early, then rain from late morning on. waves 2 to 4 feet
building to 3 to 6 feet. 
.wednesday night...west winds 20 to 25 knots. a chance of snow
and rain showers in the evening, then lake effect snow overnight.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.thursday...northwest winds 20 to 25 knots becoming west. snow
showers in the morning, then a chance of snow showers in the
afternoon. waves 5 to 8 feet. waves occasionally around 10 feet. 
.thursday night...northwest winds 15 to 25 knots becoming west. a
chance of snow showers in the evening. waves 5 to 8 feet
subsiding to 3 to 6 feet. waves occasionally around 10 feet. 
.friday...west winds 15 to 20 knots becoming southwest. a chance
of snow showers friday night. waves 3 to 5 feet subsiding to 2 to
4 feet. 
.saturday...west winds to 30 knots diminishing to 15 to 20 knots.
snow showers likely. waves 4 to 7 feet building to 5 to 9 feet,
then subsiding to 4 to 7 feet. waves occasionally around 11 feet.
.sunday...northwest winds 15 to 20 knots. snow showers likely
during the day, then a chance of snow showers sunday night. waves
3 to 6 feet subsiding to 2 to 4 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est tue dec 9 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 29.2 inch low will approach the region tonight and 
move just northwest of the lake wednesday. the region will be 
situated between a 29.1 inch low over the canadian maritimes and a 
30.1 inch high over the southern plains thursday. a 29.9 inch ridge 
of high pressure is expected to move into the great lakes region 
friday. a 29.8 inch low may move north of the lake on saturday, then 
30.2 inches will average across the lower great lakes region between 
the departing low to the east and a 30.7 inch high over the plains 
sunday.


loz063-101000-
lake ontario open waters from hamlin beach to sodus bay-
1002 pm est tue dec 9 2025

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

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est tue dec 9 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 29.2 inch low will approach the region tonight and 
move just northwest of the lake wednesday. the region will be 
situated between a 29.1 inch low over the canadian maritimes and a 
30.1 inch high over the southern plains thursday. a 29.9 inch ridge 
of high pressure is expected to move into the great lakes region 
friday. a 29.8 inch low may move north of the lake on saturday, then 
30.2 inches will average across the lower great lakes region between 
the departing low to the east and a 30.7 inch high over the plains 
sunday.


loz064-065-101000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est tue dec 9 2025

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

$$

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open lake forecast for lake erie
national weather service cleveland oh
959 pm est tue dec 9 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 warm front will lift northward across lake erie tonight, 
followed by a strong cold front poised to sweep eastward across 
the lake on wednesday as low pressure of 29.30 inches moves 
northeastward across lower michigan and southern ontario. a 
trough averaging 29.90 inches will linger over the lower great 
lakes through thursday with a ridge averaging 30.00 inches briefly
building east over the lake on friday. a cold front will track 
eastward across the region late friday into saturday and high 
pressure 30.40 inches will begin to build from the west toward the
end of the weekend.


lez061-168-169-100915-
ripley to buffalo ny extending from 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-
959 pm est tue dec 9 2025

...gale warning in effect from 4 am est wednesday through
wednesday evening...

.rest of tonight...southwest winds to 30 knots becoming south. a
slight chance of rain late this evening, then rain and snow after
midnight. waves 6 to 10 feet. waves occasionally around 13 feet. 
.wednesday...southwest winds to 30 knots becoming west and
increasing to 35 knot gales in the afternoon. rain through early
afternoon, then rain with snow likely late. waves 10 to 14 feet
building to 12 to 16 feet. waves occasionally around 20 feet. 
.wednesday night...northwest winds to 30 knots becoming west.
snow showers likely in the evening, then a chance of snow showers
overnight. waves 9 to 12 feet subsiding to 5 to 9 feet. waves
occasionally around 15 feet. 
.thursday...west winds to 30 knots. a chance of snow showers.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.thursday night...west winds to 30 knots diminishing to 15 to
20 knots. a chance of snow showers. waves 5 to 8 feet subsiding
to 3 to 5 feet. waves occasionally around 10 feet. 
.friday...west winds 15 to 25 knots becoming southwest. a chance
of snow during the day, then snow likely friday night. waves 2 to
4 feet building to 6 to 9 feet. waves occasionally around
11 feet. 
.saturday...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. snow likely. waves 5 to 9 feet
subsiding to 4 to 6 feet. waves occasionally around 11 feet. 
.sunday...northwest winds 15 to 25 knots. snow likely during the
day, then a chance of snow sunday night. waves 3 to 6 feet
subsiding to 2 to 4 feet. 

$$