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glflo 
expires:202609030315;;796307

open lake forecast for lake ontario
national weather service buffalo ny
508 pm edt wed sep 2 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 continues to move eastward across 
northern quebec and allows a cold front to sweep eastward across 
lake ontario tonight. behind the front, an extensive high pressure 
ridge averaging 30.1 inches builds from northern ontario and 
vicinity through this monday.


loz062-030315-
lake ontario open waters from the niagara river to hamlin beach-
508 pm edt wed sep 2 2026

...tornado watch 645 in effect until 11 pm edt this evening...

.tonight...southwest winds 5 to 15 knots becoming west.
thunderstorms likely with a chance of showers this evening, then
showers likely with a chance of thunderstorms after midnight. a
chance of showers late. some thunderstorms may produce strong
winds this evening. waves 1 foot or less. 
.thursday...west winds 10 knots or less becoming southwest. waves
1 foot or less. 
.thursday night...west winds 10 knots or less becoming northwest.
waves 1 foot or less. 
.friday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.friday night...west winds 5 to 10 knots becoming north. waves
1 foot or less. 
.saturday...north winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.sunday...northeast winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.monday...southeast winds 10 knots or less. waves 1 foot or less.

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 022108
glflo 
expires:202609030315;;796308

open lake forecast for lake ontario
national weather service buffalo ny
508 pm edt wed sep 2 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 continues to move eastward across 
northern quebec and allows a cold front to sweep eastward across 
lake ontario tonight. behind the front, an extensive high pressure 
ridge averaging 30.1 inches builds from northern ontario and 
vicinity through this monday.


loz063>065-030315-
lake ontario open waters from hamlin beach to the saint lawrence
river-
508 pm edt wed sep 2 2026

...tornado watch 645 in effect until 11 pm edt this evening...

.tonight...south winds 10 to 15 knots becoming west.
thunderstorms likely with a chance of showers this evening, then
showers with a chance of thunderstorms after midnight. a chance
of showers late. some thunderstorms may produce strong winds this
evening. waves 2 feet or less. 
.thursday...west winds 5 to 10 knots. a chance of showers early.
waves 1 to 2 feet. 
.thursday night...west winds 5 to 10 knots becoming northwest.
waves 1 to 2 feet. 
.friday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.friday night...west winds 5 to 10 knots becoming north. waves
1 to 2 feet. 
.saturday...north winds 5 to 10 knots becoming northeast. waves
2 feet or less. 
.sunday...northeast winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.monday...south winds 10 knots or less becoming southwest 10 to
15 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

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glfsl 
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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
508 pm edt wed sep 2 2026


slz022-024-030315-
saint lawrence river from cape vincent to saint regis
508 pm edt wed sep 2 2026

.tonight...south winds 5 to 10 knots becoming southwest.
thunderstorms likely with a chance of showers this evening, then
showers with a chance of thunderstorms after midnight. a chance
of showers late. some thunderstorms may produce strong winds this
evening. 
.thursday...west winds 10 knots or less. partly to mostly sunny. 
.thursday night...west winds less than 10 knots. mainly clear in
the evening, then becoming partly cloudy. 
.friday...light and variable winds becoming northwest 5 to
10 knots. mostly sunny. 
.friday night...northwest winds less than 10 knots. partly
cloudy. 
.saturday...north winds 10 knots or less becoming northeast.
becoming mainly clear. 
.sunday...northeast winds less than 10 knots. mainly clear. 
.monday...light and variable winds. a chance of showers monday
night. 

winds and waves higher in and near thunderstorms.

$$

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glfle 
expires:202609030215;;793114

open lake forecast for lake erie
national weather service cleveland oh
356 pm edt wed sep 2 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 frontal boundary will remain north of lake erie tonight into
thursday before being pushed south as a cold front on thursday
evening. a ridge averaging 30.00 inches will build from the north
on friday and persist through the weekend into early next week.


lez061-167>169-030215-
ripley to buffalo ny extending from 5nm 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-
356 pm edt wed sep 2 2026

.tonight...southwest winds 10 to 15 knots becoming west. a chance
of showers and thunderstorms. waves 1 to 3 feet. 
.thursday...northwest winds 5 to 10 knots becoming west. a chance
of showers with a slight chance of thunderstorms in the morning,
then a slight chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet. 
.thursday night...southwest winds 10 knots or less becoming
north. a chance of showers and thunderstorms in the evening, then
showers likely overnight. waves 1 foot or less. 
.friday...north winds less than 10 knots becoming northwest. a
chance of showers. waves 1 foot or less. 
.friday night...northwest winds 10 knots or less becoming
northeast. waves 2 feet or less. 
.saturday...northeast winds 5 to 10 knots becoming east. waves
2 feet or less. 
.sunday...east winds 5 to 15 knots. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$