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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt tue apr 28 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 29.4 inch low over southern ontario this afternoon 
will continue to track across ontario this evening, while pushing a 
warm front across the lake. the low will then continue northeast to 
james bay tonight sending a cold front across the lake. an inverted 
trough averaging 29.7 inches is expected across the lower great 
lakes wednesday through wednesday night. the trough/low will track 
to the canadian maritimes, while also elongating south along the 
coast of new england thursday through friday. the remnants of the 
sfc low will then retrograde northwest to near james bay as a 29.5 
inch low tracks across the se u.s. and out to sea from the delmarva 
on saturday. a 29.8 inch surface high will ridge over the lake 
sunday.


loz062-290900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt tue apr 28 2026

.overnight...southwest winds 10 knots or less becoming
northwest. waves 2 feet or less. 
.wednesday...north winds 10 knots or less. rain in the afternoon.
waves 1 foot or less. 
.wednesday night...northwest winds 10 to 15 knots becoming west.
rain. waves 1 to 3 feet. 
.thursday...west winds 15 to 20 knots. waves 2 to 4 feet. 
.thursday night...west winds 10 to 15 knots. waves 2 to 3 feet. 
.friday...west winds 10 to 15 knots. waves 2 to 3 feet. 
.saturday...west winds 10 to 15 knots. waves 2 to 3 feet. 
.sunday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 3 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt tue apr 28 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 29.4 inch low over southern ontario this afternoon 
will continue to track across ontario this evening, while pushing a 
warm front across the lake. the low will then continue northeast to 
james bay tonight sending a cold front across the lake. an inverted 
trough averaging 29.7 inches is expected across the lower great 
lakes wednesday through wednesday night. the trough/low will track 
to the canadian maritimes, while also elongating south along the 
coast of new england thursday through friday. the remnants of the 
sfc low will then retrograde northwest to near james bay as a 29.5 
inch low tracks across the se u.s. and out to sea from the delmarva 
on saturday. a 29.8 inch surface high will ridge over the lake 
sunday.


loz063>065-290900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt tue apr 28 2026

.overnight...south winds 15 to 20 knots becoming west 5 to
15 knots. waves 3 to 5 feet subsiding to 2 feet or less. 
.wednesday...west winds 10 knots or less becoming north. rain in
the afternoon. waves 2 feet or less. 
.wednesday night...north winds 5 to 15 knots becoming west 15 to
20 knots. rain. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday...west winds 15 to 20 knots. a chance of showers. waves
3 to 6 feet. 
.thursday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.friday...west winds 10 to 15 knots increasing to 15 to 20 knots.
waves 2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to
4 feet. 
.saturday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...west winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 2 to 4 feet building to 3 to 5 feet, then
subsiding to 1 to 3 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
948 pm edt tue apr 28 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...
low pressure 29.80 inches will track south and east of lake erie 
tomorrow morning through the afternoon. troughing averaging 30.00 
inches will linger over the lake through the end of the week. high
pressure 30.10 inches will build south of the region on saturday.


lez061-168-169-290815-
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-
948 pm edt tue apr 28 2026

.overnight...southwest winds 10 knots or less becoming
northwest. waves 1 to 2 feet. 
.wednesday...northeast winds 10 knots or less becoming north. a
chance of showers late in the morning. showers with a slight
chance of thunderstorms early in the afternoon, then a chance of
showers with a slight chance of thunderstorms late. waves 1 to
3 feet. 
.wednesday night...north winds around 10 knots becoming
northwest. a chance of rain showers in the evening. waves 1 to
3 feet. 
.thursday...northwest winds 10 to 15 knots becoming west. waves
1 to 3 feet. 
.thursday night...west winds 5 to 15 knots becoming northwest.
waves 1 to 2 feet. 
.friday...northwest winds 5 to 10 knots. waves 1 to 2 feet. 
.saturday...northwest winds 10 to 15 knots becoming west. waves
1 to 2 feet. 
.sunday...west winds 10 to 15 knots. a chance of rain showers
sunday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$