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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt mon sep 7 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 lower great lakes this evening 
will settle south toward the mid atlantic region through the 
overnight. this high will then drift to the eastern seaboard 
tuesday, then east of the mid atlantic coast by wednesday. 
meanwhile, a 29.3 inch low over far northwest ontario province 
tuesday night will move to hudson bay by late wednesday, then to 
northern quebec by thursday while deepening to 29.0 inches. a 
trailing cold front will cross the lower great lakes wednesday 
night, followed by a 30.0 inch high building east across the eastern 
great lakes region thursday through friday, before sliding east into 
new england by saturday.


loz062-080900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt mon sep 7 2026

.overnight...southwest winds 10 knots or less. waves 1 foot
or less. 
.tuesday...southwest winds 10 knots or less becoming east. waves
1 foot or less. 
.tuesday night...east winds 5 to 10 knots becoming south. a
chance of showers overnight. waves 1 foot or less. 
.wednesday...south winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. a chance of showers in the morning,
then showers likely with a chance of thunderstorms in the
afternoon. waves 1 to 3 feet building to 3 to 5 feet. 
.wednesday night...southwest winds 15 to 25 knots becoming west.
showers with a chance of thunderstorms in the evening, then
showers overnight. waves 3 to 6 feet. 
.thursday...west winds 10 to 15 knots becoming northwest. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.friday...northwest winds 10 knots or less becoming south. waves
2 feet or less. 
.saturday...south winds 5 to 10 knots becoming southwest. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 080202
glflo 
expires:202609080900;;085237

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt mon sep 7 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 lower great lakes this evening 
will settle south toward the mid atlantic region through the 
overnight. this high will then drift to the eastern seaboard 
tuesday, then east of the mid atlantic coast by wednesday. 
meanwhile, a 29.3 inch low over far northwest ontario province 
tuesday night will move to hudson bay by late wednesday, then to 
northern quebec by thursday while deepening to 29.0 inches. a 
trailing cold front will cross the lower great lakes wednesday 
night, followed by a 30.0 inch high building east across the eastern 
great lakes region thursday through friday, before sliding east into 
new england by saturday.


loz063>065-080900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt mon sep 7 2026

.overnight...southwest winds 5 to 10 knots. waves 2 feet or
less. 
.tuesday...west winds 5 to 10 knots becoming northwest. waves
2 feet or less. 
.tuesday night...southeast winds 10 knots or less becoming south
10 to 15 knots. waves 2 feet or less. 
.wednesday...south winds 15 to 20 knots. a chance of showers in
the morning, then showers likely with a chance of thunderstorms
in the afternoon. waves 1 to 3 feet. 
.wednesday night...southwest winds 15 to 25 knots becoming west.
showers with a chance of thunderstorms in the evening, then
showers overnight. waves 3 to 6 feet. 
.thursday...west winds 15 to 20 knots becoming northwest. waves
3 to 6 feet. 
.friday...north winds 5 to 15 knots becoming south. waves 1 to
3 feet subsiding to 1 foot or less. 
.saturday...south winds 10 to 15 knots increasing to 15 to
20 knots. waves 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
916 pm edt mon sep 7 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 30.20 inches will gradually weaken to 30.00 inches 
wednesday ahead of a cold front that will track across lake erie 
wednesday into wednesday night. a post frontal trough averaging 
29.90 inches lingers on thursday. high pressure builds back to 
30.10 inches friday and will remain into the weekend.


lez061-168-169-080830-
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-
916 pm edt mon sep 7 2026

.overnight...east winds 10 knots or less becoming
southeast. waves 1 foot or less. 
.tuesday...southeast winds less than 10 knots becoming northeast.
waves 1 foot or less. 
.tuesday night...east winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 
.wednesday...south winds 15 to 20 knots becoming southwest.
showers likely in the afternoon. waves 2 to 4 feet building to
3 to 5 feet. 
.wednesday night...southwest winds 15 to 25 knots becoming west.
showers with a chance of thunderstorms in the evening, then
showers overnight. waves 3 to 6 feet. 
.thursday...west winds 5 to 15 knots becoming north. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.friday...north winds 10 knots or less becoming south. waves
1 foot or less. 
.saturday...south winds 5 to 15 knots becoming southwest. a
chance of showers saturday night. waves 1 foot or less building
to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$