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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est tue nov 18 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 28.8 inch low near the northern labrador/quebec border 
will move northeast towards the north atlantic tonight through 
wednesday. a 30.2 inch high centered over the upper great lakes 
today will build to the lower great lakes wednesday and to new 
england thursday. a 29.5 inch surface low along the southern 
shoreline of hudson bay will swing a cold front east across the 
lower great lakes friday, followed by a 30.0 inch high building over 
the ohio valley and lower great lakes saturday. a weak 29.7 inch 
wave of low pressure will then move across ontario province and the 
lower lakes on sunday.


loz062-191000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est tue nov 18 2025

.overnight...northeast winds 10 knots or less. waves 1 foot
or less. 
.wednesday...north winds 10 knots or less becoming northwest.
waves 1 foot or less. 
.wednesday night...north winds less than 10 knots becoming
southeast. waves 1 foot or less. 
.thursday...southeast winds less than 10 knots. waves 1 foot or
less. 
.thursday night...south winds 10 knots or less becoming southwest
10 to 15 knots. a chance of showers in the evening, then showers
likely overnight. waves 2 feet or less. 
.friday...southwest winds 15 to 20 knots becoming northwest 10 to
15 knots. rain showers likely during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.saturday...northwest winds 5 to 10 knots becoming southwest.
waves 1 to 2 feet. 
.sunday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 

$$

fzus61 kbuf 190302
glflo 
expires:202511191000;;112241

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est tue nov 18 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 28.8 inch low near the northern labrador/quebec border 
will move northeast towards the north atlantic tonight through 
wednesday. a 30.2 inch high centered over the upper great lakes 
today will build to the lower great lakes wednesday and to new 
england thursday. a 29.5 inch surface low along the southern 
shoreline of hudson bay will swing a cold front east across the 
lower great lakes friday, followed by a 30.0 inch high building over 
the ohio valley and lower great lakes saturday. a weak 29.7 inch 
wave of low pressure will then move across ontario province and the 
lower lakes on sunday.


loz063-191000-
lake ontario open waters from hamlin beach to sodus bay-
1002 pm est tue nov 18 2025

.overnight...northwest winds 5 to 10 knots becoming north.
waves 1 to 2 feet. 
.wednesday...north winds 10 knots or less becoming northwest.
waves 1 foot or less. 
.wednesday night...northwest winds less than 10 knots. waves
1 foot or less. 
.thursday...southeast winds 10 knots or less. waves 1 foot or
less. 
.thursday night...south winds 5 to 15 knots becoming southwest. a
chance of showers overnight. waves 2 feet or less. 
.friday...southwest winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of rain showers during the day. waves 2 to
4 feet building to 3 to 5 feet, then subsiding to 2 to 4 feet. 
.saturday...northwest winds 5 to 10 knots becoming southwest.
waves 1 to 3 feet. 
.sunday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 

$$

fzus61 kbuf 190302
glflo 
expires:202511191000;;112242

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est tue nov 18 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 28.8 inch low near the northern labrador/quebec border 
will move northeast towards the north atlantic tonight through 
wednesday. a 30.2 inch high centered over the upper great lakes 
today will build to the lower great lakes wednesday and to new 
england thursday. a 29.5 inch surface low along the southern 
shoreline of hudson bay will swing a cold front east across the 
lower great lakes friday, followed by a 30.0 inch high building over 
the ohio valley and lower great lakes saturday. a weak 29.7 inch 
wave of low pressure will then move across ontario province and the 
lower lakes on sunday.


loz064-065-191000-
lake ontario open waters from sodus bay to the saint lawrence
river-
1002 pm est tue nov 18 2025

.overnight...northwest winds 5 to 10 knots becoming north.
waves 2 feet or less. 
.wednesday...north winds 10 knots or less becoming northwest.
waves 1 foot or less. 
.wednesday night...northwest winds less than 10 knots. waves
1 foot or less. 
.thursday...southeast winds 5 to 10 knots. waves 1 foot or less. 
.thursday night...southeast winds 5 to 15 knots becoming south
15 to 20 knots. showers likely overnight. waves 1 to 3 feet. 
.friday...southwest winds 15 to 20 knots becoming northwest 10 to
15 knots. rain showers during the day. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.saturday...northwest winds 5 to 10 knots becoming southwest.
waves 1 to 3 feet. 
.sunday...southwest winds 10 to 15 knots becoming west. a chance
of rain showers sunday night. waves 1 to 3 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
912 pm est tue nov 18 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...
high pressure 30.10 inches will build southeast over the region 
tonight through wednesday night before a cold front tracks east 
across the great lakes late thursday into friday. high pressure 
29.90 inches will return to the great lakes over the weekend.


lez061-168-169-190915-
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-
912 pm est tue nov 18 2025

.rest of tonight...southeast winds 10 knots or less becoming
northeast. a chance of rain late this evening, then a slight
chance of rain after midnight. waves 1 foot or less. 
.wednesday...northeast winds 10 knots or less. waves 2 feet or
less. 
.wednesday night...northeast winds less than 10 knots becoming
southeast. waves 1 foot or less. 
.thursday...southeast winds less than 10 knots becoming south.
waves 1 foot or less. 
.thursday night...south winds 5 to 15 knots becoming southwest.
rain likely overnight. waves 1 to 3 feet. 
.friday...west winds 5 to 15 knots becoming north. waves 1 to
3 feet. 
.saturday...north winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.sunday...southwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 

$$