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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt sun jun 21 2026

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 weak ridge of high pressure averaging 29.9 inches will 
build over the great lakes through the day today. a 29.7 inch low is 
then forecast to move south of the lower great lakes monday and 
monday night, before moving off the new england coast by tuesday. a 
broad area of high pressure averaging 30.1 inches will advance over 
the eastern great lakes region tuesday and wednesday, before exiting 
east into new england on thursday as a weak 29.8 inch low moves east 
into the central great lakes.


loz062-212100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt sun jun 21 2026

.this afternoon...west winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.tonight...southwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.monday...southeast winds 10 knots or less becoming northeast.
showers likely. waves 1 foot or less. 
.monday night...northeast winds 5 to 10 knots becoming northwest.
a chance of showers in the evening. waves 1 foot or less. 
.tuesday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.wednesday...west winds less than 10 knots becoming south. waves
1 foot or less. 
.thursday...southeast winds 10 knots or less becoming south. a
chance of showers. waves 1 foot or less. 

$$

fzus61 kbuf 211402
glflo 
expires:202606212100;;128045

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt sun jun 21 2026

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 weak ridge of high pressure averaging 29.9 inches will 
build over the great lakes through the day today. a 29.7 inch low is 
then forecast to move south of the lower great lakes monday and 
monday night, before moving off the new england coast by tuesday. a 
broad area of high pressure averaging 30.1 inches will advance over 
the eastern great lakes region tuesday and wednesday, before exiting 
east into new england on thursday as a weak 29.8 inch low moves east 
into the central great lakes.


loz063>065-212100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt sun jun 21 2026

.this afternoon...west winds 5 to 15 knots. waves 2 feet or less. 
.tonight...west winds 10 knots or less becoming south. waves
1 foot or less. 
.monday...south winds 5 to 10 knots becoming east. showers. waves
1 foot or less. 
.monday night...northeast winds 10 knots or less becoming
northwest. showers likely in the evening. waves 1 foot or less. 
.tuesday...northwest winds 5 to 15 knots. waves 2 feet or less. 
.wednesday...west winds 10 knots or less becoming south. waves
1 foot or less. 
.thursday...southeast winds 10 knots or less becoming south. a
chance of showers during the day, then showers likely thursday
night. waves 1 foot or less. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
936 am edt sun jun 21 2026

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 30.00 inches over lake erie this morning will drift
east today as low pressure 29.70 inches moves out of the 
mississippi valley tonight and passes just south of the lake 
monday. a weak trough averaging 30.00 inches will linger over the
lake monday night before a ridge averaging 30.10 inches builds 
down across the great lakes tuesday through wednesday. this ridge 
will depart by thursday as low pressure 29.80 inches moves into 
the northern great lakes and pushes a cold front across lake erie.


lez061-168-169-212015-
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-
936 am edt sun jun 21 2026

.this afternoon...northwest winds less than 10 knots becoming
west. waves 1 foot or less. 
.tonight...southwest winds 10 knots or less becoming east. a
slight chance of rain late in the evening. a chance of rain after
midnight, then rain late. waves 1 foot or less. 
.monday...east winds 15 to 20 knots becoming northeast. showers.
waves 1 to 3 feet building to 3 to 5 feet. 
.monday night...northeast winds 15 to 20 knots becoming north
5 to 15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...north winds 5 to 10 knots. waves 2 feet or less. 
.wednesday...northwest winds 10 knots or less becoming south.
waves 1 foot or less. 
.thursday...south winds 5 to 10 knots becoming southwest. a
chance of showers and thunderstorms. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$