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open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun may 3 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 29.7 inch low well southeast of maine will deepen to 
28.8 inches as it tracks to atlantic canada through tonight, while a 
30.2 inch high centered over the tennessee valley slides east and 
off the carolina coast. a 29.1 inch low over western ontario 
province monday will then weaken to 29.3 inches as it moves to 
northern quebec through tuesday, with its trailing wavy cold front 
slowly crossing the lake tuesday, then drifting across new england 
through wednesday.


loz062-040300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt sun may 3 2026

.tonight...southwest winds 15 to 20 knots. showers likely early.
waves 1 to 3 feet building to 3 to 5 feet. 
.monday...southwest winds 15 to 20 knots. waves 2 to 4 feet. 
.monday night...southwest winds 15 to 20 knots. a chance of
showers. waves 2 to 4 feet building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming west. a chance
of showers in the morning, then showers likely in the afternoon.
waves 3 to 5 feet. 
.tuesday night...northwest winds 5 to 15 knots. rain. waves 1 to
3 feet. 
.wednesday...northwest winds 5 to 10 knots. rain during the day.
waves 1 foot or less. 
.thursday...northwest winds 10 knots or less becoming west 10 to
15 knots. waves 2 feet or less. 
.friday...west winds 5 to 15 knots. waves 1 to 2 feet. 

$$

fzus61 kbuf 032002
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open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun may 3 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 29.7 inch low well southeast of maine will deepen to 
28.8 inches as it tracks to atlantic canada through tonight, while a 
30.2 inch high centered over the tennessee valley slides east and 
off the carolina coast. a 29.1 inch low over western ontario 
province monday will then weaken to 29.3 inches as it moves to 
northern quebec through tuesday, with its trailing wavy cold front 
slowly crossing the lake tuesday, then drifting across new england 
through wednesday.


loz063>065-040300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt sun may 3 2026

.tonight...southwest winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers this evening. a chance of showers
late. waves 1 to 2 feet building to 3 to 5 feet. 
.monday...southwest winds 15 to 20 knots becoming south 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday night...south winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers overnight. waves 1 to 3 feet
building to 2 to 4 feet. 
.tuesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of showers in the morning, then showers likely
with a chance of thunderstorms in the afternoon. waves 2 to
4 feet. 
.tuesday night...west winds 5 to 15 knots becoming northwest.
rain. waves 1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots becoming west. rain
during the day. waves 1 to 2 feet. 
.thursday...west winds 5 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.friday...west winds 15 to 20 knots becoming southwest and
diminishing to 5 to 10 knots. waves 2 to 4 feet building to 3 to
5 feet, then subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
346 pm edt sun may 3 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 trough of 29.50 inches moves into the upper great lakes tonight.
this trough will settle south across the central great lakes 
monday into tuesday, with a cold front moving south across lake
erie on tuesday. high pressure of 30.00 inches builds over lake 
erie on wednesday followed by a trough of 29.80 inches moving over
the lake on thursday.


lez061-166>169-040215-
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-
346 pm edt sun may 3 2026

.tonight...southwest winds 15 to 20 knots. a slight chance of
rain after midnight. waves 3 to 6 feet. 
.monday...southwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.monday night...southwest winds 15 to 20 knots. showers likely
with a chance of thunderstorms in the evening, then showers
likely overnight. waves 2 to 4 feet building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of showers in the morning, then showers in the
afternoon. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.tuesday night...northwest winds 5 to 15 knots becoming north.
showers. waves 1 to 3 feet. 
.wednesday...north winds 5 to 10 knots becoming west. a chance of
showers during the day. waves 2 feet or less. 
.thursday...north winds 5 to 15 knots becoming west. a chance of
showers during the day. waves 2 feet or less. 
.friday...west winds 5 to 15 knots. a chance of showers. waves
1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$