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open lake forecast for lake ontario
national weather service buffalo ny
402 am est thu nov 27 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 29.3 inch low over the upper peninsula of michigan 
this evening will track northeast into lower quebec by thursday 
morning. meanwhile, a cold front over the center of the lake will 
continue to exit east across the lake and into new england. the 29.3 
inch surface low will track well north of the lake thursday and 
friday, as a 30.4 inch surface high builds into the mid-mississippi 
valley friday and to the ohio valley saturday. another surface low 
will cut northeastward through the central great lakes sunday, 
deepening from 29.6 inches sunday morning to 29.4 inches sunday 
night over western quebec. a 30.5 inch surface high centered over 
the central plains will then build east across the great lakes 
monday.


loz062-271600-
lake ontario open waters from the niagara river to hamlin beach-
402 am est thu nov 27 2025

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

.today...west gales to 35 knots. a chance of snow showers this
morning, then lake effect snow this afternoon. waves 11 to
16 feet. waves occasionally around 20 feet. 
.tonight...west gales to 35 knots diminishing to 30 knots after
midnight. lake effect snow in the evening, then lake effect snow
showers after midnight. waves 9 to 13 feet subsiding to 8 to
11 feet. waves occasionally around 16 feet. 
.friday...west winds to 30 knots. snow showers. waves 8 to
11 feet. waves occasionally around 14 feet. 
.friday night...west winds to 30 knots becoming northwest and
diminishing to 15 to 20 knots. a chance of snow showers. waves
6 to 10 feet subsiding to 5 to 8 feet. waves occasionally around
13 feet. 
.saturday...west winds 15 to 20 knots becoming southeast. lake
effect snow showers saturday night. waves 3 to 5 feet subsiding
to 1 to 3 feet. 
.sunday...south winds 15 to 25 knots becoming west to 30 knots.
lake effect rain and snow showers during the day, then lake
effect rain showers sunday night. waves 3 to 5 feet building to
5 to 8 feet. waves occasionally around 10 feet. 
.monday...northwest winds 15 to 20 knots becoming southeast 10 to
15 knots. a chance of lake effect snow showers monday night.
waves 4 to 7 feet subsiding to 1 to 3 feet. waves occasionally
around 9 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am est thu nov 27 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 29.3 inch low over the upper peninsula of michigan 
this evening will track northeast into lower quebec by thursday 
morning. meanwhile, a cold front over the center of the lake will 
continue to exit east across the lake and into new england. the 29.3 
inch surface low will track well north of the lake thursday and 
friday, as a 30.4 inch surface high builds into the mid-mississippi 
valley friday and to the ohio valley saturday. another surface low 
will cut northeastward through the central great lakes sunday, 
deepening from 29.6 inches sunday morning to 29.4 inches sunday 
night over western quebec. a 30.5 inch surface high centered over 
the central plains will then build east across the great lakes 
monday.


loz063-271600-
lake ontario open waters from hamlin beach to sodus bay-
402 am est thu nov 27 2025

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

.today...west gales to 40 knots diminishing to 35 knots. lake
effect snow. waves 12 to 17 feet. waves occasionally around
22 feet. 
.tonight...west gales to 35 knots diminishing to 30 knots after
midnight. lake effect snow in the evening, then lake effect snow
showers after midnight. waves 11 to 16 feet subsiding to 10 to
14 feet. waves occasionally around 20 feet. 
.friday...west winds to 30 knots increasing to 35 knot gales.
lake effect snow showers. waves 10 to 14 feet. waves occasionally
around 18 feet. 
.friday night...west winds to 30 knots becoming northwest. lake
effect snow showers likely. waves 9 to 13 feet subsiding to 6 to
10 feet. waves occasionally around 16 feet. 
.saturday...northwest winds 15 to 25 knots becoming southeast.
lake effect snow showers saturday night. waves 4 to 7 feet
subsiding to 2 to 4 feet. waves occasionally around 9 feet. 
.sunday...south winds to 30 knots becoming west. lake effect rain
and snow showers during the day, then lake effect rain showers
with a chance of lake effect snow showers sunday night. waves
5 to 8 feet building to 6 to 9 feet. waves occasionally around
11 feet. 
.monday...northwest winds 15 to 25 knots becoming south and
diminishing to 10 to 15 knots. a chance of lake effect snow
showers. waves 6 to 9 feet subsiding to 1 to 2 feet. waves
occasionally around 11 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am est thu nov 27 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 29.3 inch low over the upper peninsula of michigan 
this evening will track northeast into lower quebec by thursday 
morning. meanwhile, a cold front over the center of the lake will 
continue to exit east across the lake and into new england. the 29.3 
inch surface low will track well north of the lake thursday and 
friday, as a 30.4 inch surface high builds into the mid-mississippi 
valley friday and to the ohio valley saturday. another surface low 
will cut northeastward through the central great lakes sunday, 
deepening from 29.6 inches sunday morning to 29.4 inches sunday 
night over western quebec. a 30.5 inch surface high centered over 
the central plains will then build east across the great lakes 
monday.


loz064-065-271600-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 am est thu nov 27 2025

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

.today...southwest gales to 35 knots becoming west to 40 knots.
lake effect snow. waves 12 to 17 feet. waves occasionally around
22 feet. 
.tonight...west gales to 35 knots in the evening. lake effect
snow in the evening, then lake effect snow showers with a few
rumbles of thunder possible after midnight. waves 12 to 17 feet
subsiding to 10 to 15 feet. waves occasionally around 22 feet. 
.friday...west winds to 30 knots increasing to 35 knot gales.
snow showers. waves 10 to 15 feet. waves occasionally around
19 feet. 
.friday night...northwest winds to 30 knots. a chance of snow
showers. waves 10 to 14 feet subsiding to 6 to 9 feet. waves
occasionally around 18 feet. 
.saturday...northwest winds 15 to 25 knots becoming southeast.
lake effect snow showers likely saturday night. waves 4 to 7 feet
subsiding to 3 to 5 feet. waves occasionally around 9 feet. 
.sunday...south gales to 35 knots becoming west and diminishing
to 30 knots. lake effect rain and snow showers during the day,
then lake effect rain showers with a chance of lake effect snow
showers sunday night. waves 5 to 8 feet building to 7 to 10 feet.
waves occasionally around 13 feet. 
.monday...northwest winds 15 to 25 knots becoming southeast and
diminishing to 10 to 15 knots. a chance of lake effect snow
showers. waves 6 to 9 feet subsiding to 2 feet or less. waves
occasionally around 11 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
342 am est thu nov 27 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 of 29.40 inches over quebec will maintain a trough
across the eastern great lakes through friday as it slowly moves 
northeast. high pressure of 30.40 inches will move east across 
the lake friday night and saturday. low pressure of 29.80 inches
will track out of the plains saturday night and deepen to 29.70
inches as it crosses the central great lakes on sunday. high 
pressure 30.50 inches will begin to build east into the region on 
monday.


lez061-168-169-271530-
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-
342 am est thu nov 27 2025

...gale warning in effect through friday morning...

.today...west gales to 40 knots. a chance of snow and rain this
morning, then snow and rain likely this afternoon. waves 13 to
17 feet subsiding to 11 to 15 feet. waves occasionally around
22 feet. 
.tonight...west gales to 40 knots diminishing to 35 knots. snow
likely with a slight chance of rain early, then snow likely from
late evening on. waves 11 to 16 feet. waves occasionally around
20 feet. 
.friday...west gales to 35 knots diminishing to 30 knots. snow.
waves 9 to 13 feet subsiding to 8 to 11 feet. waves occasionally
around 16 feet. 
.friday night...west winds to 30 knots diminishing to 15 to
25 knots. a chance of snow in the evening. waves 6 to 10 feet
subsiding to 5 to 8 feet. waves occasionally around 13 feet. 
.saturday...west winds 15 to 25 knots becoming south. snow
saturday night. waves 3 to 5 feet. 
.sunday...south winds to 30 knots becoming northwest. rain during
the day, then rain and snow likely sunday night. waves 5 to
8 feet building to 7 to 11 feet, then subsiding to 6 to 9 feet.
waves occasionally around 14 feet. 
.monday...northwest winds 15 to 20 knots becoming south and
diminishing to 5 to 10 knots. a chance of snow. waves 3 to 5 feet
subsiding to 1 to 3 feet. 

$$