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open lake forecast for lake ontario
national weather service buffalo ny
402 am est sun nov 16 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 deepen to 29.0 inches as it tracks 
from georgian bay to central new england by sunday morning while 
also sending an attendant cold front across the lake tonight. this 
low will deepen further to 28.8 inches over northern new england 
sunday before moving to the canadian maritimes monday, then north to 
labrador tuesday. a 30.3 inch high will then build from the upper 
great lakes tuesday to the lower great lakes wednesday, then to new 
england thursday.


loz062-161600-
lake ontario open waters from the niagara river to hamlin beach-
402 am est sun nov 16 2025

...gale warning in effect through late tonight...

.today...northwest gales to 35 knots. a chance of rain showers
this morning, then a chance of rain and snow showers early this
afternoon. lake effect snow showers likely late. waves 10 to
14 feet. waves occasionally around 18 feet. 
.tonight...northwest winds to 30 knots. a chance of snow showers.
waves 7 to 11 feet subsiding to 6 to 9 feet. waves occasionally
around 14 feet. 
.monday...northwest winds to 30 knots becoming west. a chance of
snow showers. waves 5 to 9 feet. waves occasionally around
11 feet. 
.monday night...west winds 15 to 25 knots becoming northwest.
waves 4 to 7 feet subsiding to 3 to 6 feet. waves occasionally
around 9 feet. 
.tuesday...northwest winds 15 to 20 knots becoming northeast 5 to
15 knots. waves 2 to 4 feet subsiding to 1 foot or less. 
.wednesday...east winds 5 to 10 knots. waves 1 foot or less. 
.thursday...northeast winds 10 knots or less becoming southeast
10 to 15 knots. showers thursday night. waves 2 feet or less. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am est sun nov 16 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 deepen to 29.0 inches as it tracks 
from georgian bay to central new england by sunday morning while 
also sending an attendant cold front across the lake tonight. this 
low will deepen further to 28.8 inches over northern new england 
sunday before moving to the canadian maritimes monday, then north to 
labrador tuesday. a 30.3 inch high will then build from the upper 
great lakes tuesday to the lower great lakes wednesday, then to new 
england thursday.


loz063-161600-
lake ontario open waters from hamlin beach to sodus bay-
402 am est sun nov 16 2025

...gale warning in effect through late tonight...

.today...northwest gales to 35 knots. a chance of rain showers
this morning. a chance of rain and snow showers late. waves 12 to
16 feet. waves occasionally around 20 feet. 
.tonight...northwest gales to 35 knots diminishing to 30 knots. a
chance of snow showers early. waves 10 to 14 feet subsiding to
8 to 11 feet. waves occasionally around 18 feet. 
.monday...northwest winds to 30 knots becoming west. a chance of
snow showers in the morning, then a chance of rain and snow
showers in the afternoon. waves 7 to 11 feet. waves occasionally
around 14 feet. 
.monday night...northwest winds to 30 knots diminishing to 15 to
20 knots. a chance of rain and snow showers in the evening, then
a chance of rain showers overnight. waves 6 to 10 feet subsiding
to 5 to 8 feet. waves occasionally around 13 feet. 
.tuesday...northwest winds 15 to 20 knots diminishing to 5 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.wednesday...east winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.thursday...east winds 10 knots or less becoming southeast and
increasing to 15 to 20 knots. showers likely thursday night.
waves 1 foot or less building to 1 to 3 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
402 am est sun nov 16 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 deepen to 29.0 inches as it tracks 
from georgian bay to central new england by sunday morning while 
also sending an attendant cold front across the lake tonight. this 
low will deepen further to 28.8 inches over northern new england 
sunday before moving to the canadian maritimes monday, then north to 
labrador tuesday. a 30.3 inch high will then build from the upper 
great lakes tuesday to the lower great lakes wednesday, then to new 
england thursday.


loz064-065-161600-
lake ontario open waters from sodus bay to the saint lawrence
river-
402 am est sun nov 16 2025

...gale warning in effect through late tonight...

.today...northwest gales to 35 knots. a chance of rain showers
this morning. a chance of rain showers late. waves 12 to 16 feet.
waves occasionally around 20 feet. 
.tonight...northwest gales to 35 knots. a chance of snow showers.
waves 10 to 15 feet subsiding to 8 to 11 feet. waves occasionally
around 19 feet. 
.monday...northwest winds to 30 knots becoming west. a chance of
snow showers in the morning. waves 7 to 11 feet. waves
occasionally around 14 feet. 
.monday night...northwest winds to 30 knots diminishing to 15 to
25 knots. waves 6 to 10 feet subsiding to 5 to 8 feet. waves
occasionally around 13 feet. 
.tuesday...northwest winds 15 to 20 knots becoming north 5 to
15 knots. waves 4 to 7 feet subsiding to 2 feet or less. waves
occasionally around 9 feet. 
.wednesday...east winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.thursday...southeast winds 5 to 10 knots increasing to 15 to
20 knots. a chance of rain showers during the day, then rain
showers likely thursday night. waves 1 foot or less building to
1 to 3 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
402 am est sun nov 16 2025


slz022-161600-
saint lawrence river from cape vincent to ogdensburg-
402 am est sun nov 16 2025

.today...west winds 15 to 20 knots. a chance of rain and snow
showers early, then snow and rain showers likely late this
morning. a chance of snow showers this afternoon. 
.tonight...west winds 15 to 20 knots becoming northwest 10 to
15 knots. snow showers likely in the evening, then a chance of
snow showers after midnight. 
.monday...northwest winds 10 to 15 knots becoming west. a chance
of snow showers in the morning. 
.monday night...west winds 5 to 15 knots. mostly cloudy. 
.tuesday...west winds 5 to 10 knots becoming light and variable.
partly cloudy. 
.wednesday...light and variable winds. partly cloudy, then
becoming mostly cloudy. 
.thursday...northeast winds 10 knots or less becoming southeast.
rain showers likely thursday night. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
316 am est sun nov 16 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 will deepen to 28.90 inches this morning as it moves
into northern new england. a trough averaging 29.80 inches will 
linger over the eastern great lakes through monday. weak low 
pressure 29.90 inches will move east through the lower ohio valley
on tuesday, followed by high pressure 30.20 inches building from 
the north on wednesday. low pressure 29.50 inches may approach
from the mississippi valley thursday.


lez061-166>169-161530-
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-
316 am est sun nov 16 2025

.today...northwest winds to 30 knots. a chance of showers. waves
7 to 11 feet. waves occasionally around 14 feet. 
.tonight...northwest winds to 30 knots. rain showers likely with
a slight chance of thunderstorms in the evening, then snow
showers likely with a slight chance of rain showers after
midnight. a chance of snow showers with a slight chance of rain
showers late. waves 7 to 11 feet. waves occasionally around
14 feet. 
.monday...northwest winds to 30 knots. snow showers in the
morning. waves 5 to 9 feet subsiding to 4 to 7 feet. waves
occasionally around 11 feet. 
.monday night...northwest winds 15 to 25 knots diminishing to
10 to 15 knots. a chance of rain in the evening. waves 3 to
6 feet subsiding to 1 to 3 feet. 
.tuesday...west winds 5 to 15 knots becoming east. a chance of
rain. waves 1 to 3 feet subsiding to 1 foot or less. 
.wednesday...east winds 10 knots or less becoming northeast.
waves 2 feet or less. 
.thursday...northeast winds 10 knots or less becoming south and
increasing to 15 to 20 knots. a chance of rain during the day,
then rain thursday night. waves 1 foot or less building to 2 to
4 feet. 

winds and waves higher in and near thunderstorms.

$$