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open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt fri may 29 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 30.2 inch high over the central great lakes will 
settle into the ohio valley today. meanwhile a 29.6 inch low will 
make its way southeastward across quebec today and new england 
tonight, with its trailing cold front crossing the lake between late 
this afternoon and early this evening. a 30.2 inch high will then 
build across the great lakes and ohio valley saturday through 
sunday, with a 29.8 inch low forecast to push south across new 
england sunday night and monday. another 30.3 inch high will then 
build south across the great lakes tuesday.


loz062-292100-
lake ontario open waters from the niagara river to hamlin beach-
1003 am edt fri may 29 2026

.this afternoon...southwest winds 10 to 15 knots becoming west
15 to 20 knots. a chance of showers late. waves 1 to 2 feet
building to 3 to 5 feet. 
.tonight...northwest winds 15 to 20 knots becoming north 10 to
15 knots. a chance of showers early. waves 3 to 5 feet subsiding
to 2 to 4 feet. 
.saturday...north winds 5 to 15 knots becoming west less than
10 knots. waves 2 feet or less. 
.saturday night...west winds 10 knots or less. waves 1 foot or
less. 
.sunday...west winds 5 to 15 knots. waves 2 feet or less. 
.monday...north winds 10 knots or less becoming northwest. waves
1 foot or less. 
.tuesday...north winds 5 to 10 knots. waves 2 feet or less. 

$$

fzus61 kbuf 291403
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open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt fri may 29 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 30.2 inch high over the central great lakes will 
settle into the ohio valley today. meanwhile a 29.6 inch low will 
make its way southeastward across quebec today and new england 
tonight, with its trailing cold front crossing the lake between late 
this afternoon and early this evening. a 30.2 inch high will then 
build across the great lakes and ohio valley saturday through 
sunday, with a 29.8 inch low forecast to push south across new 
england sunday night and monday. another 30.3 inch high will then 
build south across the great lakes tuesday.


loz063>065-292100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 am edt fri may 29 2026

.this afternoon...west winds 15 to 20 knots. a chance of showers
late. waves 1 to 3 feet building to 3 to 6 feet. 
.tonight...northwest winds 15 to 20 knots becoming north. a
chance of showers early. waves 3 to 6 feet. 
.saturday...north winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.saturday night...northwest winds 10 knots or less becoming west.
waves 1 foot or less. 
.sunday...west winds 10 to 15 knots diminishing to 5 to 10 knots.
waves 1 to 2 feet building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.monday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...north winds 5 to 10 knots. waves 1 foot or less. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
946 am edt fri may 29 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...
a ridge of high pressure averaging 30.10 inches exits 
southeastward before a cold front sweeps generally southward 
across lake erie tonight. behind the front, another ridge 
averaging 30.10 inches builds from the hudson bay area through 
tuesday.


lez061-166>169-292030-
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-
946 am edt fri may 29 2026

.this afternoon...west winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. waves 1 foot or less building to
2 to 4 feet. 
.tonight...southwest winds 15 to 25 knots becoming northeast.
waves 2 to 4 feet building to 3 to 5 feet. 
.saturday...northeast winds 15 to 20 knots. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.saturday night...northeast winds 15 to 20 knots becoming east
5 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...east winds 10 knots or less becoming west. waves 1 foot
or less. 
.monday...north winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...north winds 5 to 15 knots. waves 2 feet or less. 

$$