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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt thu sep 24 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...an expansive 30.6 inch high will remain centered over 
southern quebec through saturday while gradually weakening to 30.3 
inches late this week. an elongated 29.6 inch low well offshore of 
the mid atlantic coast friday is forecast to strengthen to 29.3 
inches as it moves to just off the southern new england coast 
saturday night. this low will gradually fill to 29.6 inches by 
monday as it meanders near the new england coastline.


loz062-241500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt thu sep 24 2026

.today...east winds 5 to 15 knots increasing to 15 to 20 knots.
waves 1 to 3 feet. 
.tonight...east winds 5 to 15 knots becoming northeast. waves
1 to 3 feet. 
.friday...northeast winds 10 knots or less becoming north. waves
1 to 2 feet. 
.friday night...northwest winds 5 to 15 knots becoming north.
waves 2 feet or less. 
.saturday...north winds 5 to 15 knots. waves 1 to 3 feet. 
.sunday...north winds 5 to 15 knots becoming northeast. waves
1 to 3 feet. 
.monday...northeast winds 10 knots or less becoming southwest.
waves 2 feet or less. 

$$
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glflo 
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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt thu sep 24 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...an expansive 30.6 inch high will remain centered over 
southern quebec through saturday while gradually weakening to 30.3 
inches late this week. an elongated 29.6 inch low well offshore of 
the mid atlantic coast friday is forecast to strengthen to 29.3 
inches as it moves to just off the southern new england coast 
saturday night. this low will gradually fill to 29.6 inches by 
monday as it meanders near the new england coastline.


loz063>065-241500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt thu sep 24 2026

.today...southeast winds 5 to 15 knots becoming northeast 15 to
20 knots. waves 2 feet or less. 
.tonight...northeast winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 
.friday...northeast winds 10 to 15 knots becoming north. waves
1 to 3 feet. 
.friday night...north winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.saturday...north winds 15 to 20 knots. waves 2 to 4 feet. 
.sunday...north winds 15 to 20 knots becoming northeast 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.monday...northeast winds 5 to 15 knots becoming north. waves
1 to 3 feet subsiding to 1 foot or less. 

$$
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open lake forecast for lake erie
national weather service cleveland oh
338 am edt thu sep 24 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 of 30.40 inches will build south across the great 
lakes today and influence the great lakes through tuesday.


lez061-168-169-241415-
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-
338 am edt thu sep 24 2026

.today...east winds 10 to 15 knots becoming northeast 15 to
20 knots. waves 1 to 3 feet. 
.tonight...northeast winds 15 to 20 knots becoming east 5 to
15 knots. waves 2 to 4 feet building to 3 to 5 feet, then
subsiding to 1 to 3 feet. 
.friday...northeast winds 5 to 15 knots. waves 2 feet or less. 
.friday night...northeast winds 10 to 15 knots. waves 2 feet or
less. 
.saturday...northeast winds 5 to 10 knots becoming north. waves
2 feet or less. 
.sunday...north winds 5 to 15 knots becoming northeast. waves
2 feet or less. 
.monday...northeast winds 10 knots or less becoming south. waves
1 foot or less. 

$$
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