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open lake forecast for lake ontario
national weather service buffalo ny
402 pm est wed nov 5 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...low pressure over the upper great lakes will deepen from 
29.6 inches to 29.4 inches as it passes along or just north of the 
north shore of the lake late this afternoon into this evening, 
before making its way across new england tonight while further 
strengthening to 29.2 inches. in its wake, a 30.2 inch high will 
build from the ohio valley to the mid-atlantic states thursday, then 
will slide out to sea through friday while allowing a 29.4 inch low 
to track from the upper great lakes to quebec and push its trailing 
cold front across the lake friday night. another 29.5 inch surface 
low will then track from the ohio valley to new england sunday and 
monday.


loz062-060400-
lake ontario open waters from the niagara river to hamlin beach-
402 pm est wed nov 5 2025

...gale warning in effect until 1 am est thursday...

.tonight...northwest gales to 35 knots diminishing to 30 knots.
showers likely this evening, then a chance of showers after
midnight. waves 10 to 14 feet subsiding to 7 to 11 feet. waves
occasionally around 18 feet. 
.thursday...northwest winds 15 to 25 knots becoming west. waves
5 to 8 feet subsiding to 3 to 6 feet. waves occasionally around
10 feet. 
.thursday night...west winds 10 to 15 knots becoming south. waves
1 to 3 feet. 
.friday...south winds 15 to 25 knots becoming southwest. a chance
of showers in the morning, then showers in the afternoon. waves
1 to 3 feet building to 3 to 6 feet. 
.friday night...southwest winds 15 to 20 knots becoming west.
showers. waves 3 to 5 feet. 
.saturday...northwest winds 15 to 20 knots becoming northeast. a
chance of showers during the day, then showers likely saturday
night. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.sunday...northeast winds 15 to 25 knots becoming northwest. rain
showers during the day, then rain showers likely with a chance of
snow showers sunday night. waves 3 to 6 feet building to 4 to
7 feet. waves occasionally around 9 feet. 
.monday...northwest winds 15 to 25 knots becoming west. a chance
of snow showers during the day, then snow showers likely monday
night. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 pm est wed nov 5 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...low pressure over the upper great lakes will deepen from 
29.6 inches to 29.4 inches as it passes along or just north of the 
north shore of the lake late this afternoon into this evening, 
before making its way across new england tonight while further 
strengthening to 29.2 inches. in its wake, a 30.2 inch high will 
build from the ohio valley to the mid-atlantic states thursday, then 
will slide out to sea through friday while allowing a 29.4 inch low 
to track from the upper great lakes to quebec and push its trailing 
cold front across the lake friday night. another 29.5 inch surface 
low will then track from the ohio valley to new england sunday and 
monday.


loz063>065-060400-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm est wed nov 5 2025

...gale warning in effect until 1 am est thursday...

.tonight...west gales to 40 knots becoming northwest and
diminishing to 30 knots after midnight. showers this evening,
then a chance of showers after midnight. waves 12 to 17 feet
subsiding to 9 to 12 feet. waves occasionally around 22 feet. 
.thursday...northwest winds to 30 knots becoming west 15 to
25 knots. waves 7 to 10 feet subsiding to 3 to 6 feet. waves
occasionally around 13 feet. 
.thursday night...west winds 15 to 20 knots becoming south 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday...south winds 15 to 25 knots increasing to 30 knots. a
chance of showers in the morning, then showers in the afternoon.
waves 3 to 5 feet building to 5 to 8 feet. waves occasionally
around 10 feet. 
.friday night...southwest winds 15 to 25 knots becoming west.
showers. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.saturday...west winds 15 to 20 knots becoming east 5 to
15 knots. rain showers likely. waves 3 to 6 feet subsiding to
1 to 3 feet. 
.sunday...east winds 15 to 25 knots becoming northwest. rain
showers during the day, then rain showers with snow showers
likely sunday night. waves 3 to 5 feet building to 4 to 7 feet.
waves occasionally around 9 feet. 
.monday...northwest winds 15 to 25 knots becoming west. snow and
rain showers likely during the day, then snow showers likely
monday night. 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 erie
national weather service cleveland oh
307 pm est wed nov 5 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...
low pressure 29.70 inches is centered near the eastern edge of
lake erie and will continue to move east off the new england coast
tonight. high pressure 30.30 inches will build over the area on
thursday. another low pressure 29.40 inches will impact the region
on friday into saturday, moving a cold front east late friday into 
saturday. another low pressure 29.70 inches will move east across
lake erie on sunday with a lingering surface trough averaging
30.00 inches persisting through monday. 


lez061-168-169-060330-
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-
307 pm est wed nov 5 2025

...gale warning in effect until 10 pm est this evening...

.tonight...northwest gales to 35 knots diminishing to 30 knots. a
chance of rain early, then a slight chance of rain from late
evening on. a slight chance of waterspouts late. waves 11 to
15 feet subsiding to 6 to 10 feet. waves occasionally around
19 feet. 
.thursday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. a slight chance of waterspouts through early afternoon.
waves 4 to 7 feet subsiding to 1 to 3 feet. waves occasionally
around 9 feet. 
.thursday night...southwest winds 5 to 15 knots becoming south
15 to 20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.friday...south winds to 30 knots becoming southwest. rain. waves
3 to 6 feet building to 6 to 9 feet. waves occasionally around
11 feet. 
.friday night...southwest winds 15 to 25 knots becoming west.
rain likely in the evening, then a chance of rain overnight.
waves 5 to 8 feet subsiding to 3 to 5 feet. waves occasionally
around 10 feet. 
.saturday...northwest winds 5 to 15 knots becoming east 15 to
20 knots. a chance of rain during the day, then rain saturday
night. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...northwest winds to 30 knots. rain during the day, then
rain and snow likely sunday night. waves 5 to 9 feet subsiding to
4 to 7 feet. waves occasionally around 11 feet. 
.monday...northwest winds 15 to 25 knots becoming west to
30 knots. snow likely. waves 5 to 8 feet building to 6 to 9 feet.
waves occasionally around 11 feet. 

$$