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open lake forecast for lake ontario
national weather service buffalo ny
420 am edt wed sep 9 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 ridge of high pressure over the east coast 
will move further east today. a cold front will cross the lake while 
averaging 29.8 inches tonight. behind the cold front, another ridge 
averaging 30.0 inches should build from the western great lakes 
through friday and then exit toward new england on saturday. a warm 
front should sweep northeastward across lake ontario saturday night 
and be followed by a cold front sweeping eastward across the lake 
later on sunday.


loz062-091500-
lake ontario open waters from the niagara river to hamlin beach-
420 am edt wed sep 9 2026

.today...south winds 5 to 15 knots becoming southwest 15 to
20 knots. a chance of showers early, then showers. showers with a
chance of thunderstorms late. waves 1 to 3 feet building to 2 to
4 feet. 
.tonight...southwest winds 15 to 20 knots becoming west. showers
likely with a chance of thunderstorms early, then a chance of
showers late in the evening. waves 3 to 5 feet subsiding to 2 to
4 feet. 
.thursday...west winds 15 to 20 knots. waves 2 to 4 feet. 
.thursday night...northwest winds 15 to 20 knots diminishing to
10 to 15 knots. 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 10 knots or less becoming southwest. a
chance of showers saturday night. waves 1 foot or less. 
.sunday...west winds 5 to 10 knots becoming northwest. a chance
of showers during the day. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 090820
glflo 
expires:202609091500;;155858

open lake forecast for lake ontario
national weather service buffalo ny
420 am edt wed sep 9 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 ridge of high pressure over the east coast 
will move further east today. a cold front will cross the lake while 
averaging 29.8 inches tonight. behind the cold front, another ridge 
averaging 30.0 inches should build from the western great lakes 
through friday and then exit toward new england on saturday. a warm 
front should sweep northeastward across lake ontario saturday night 
and be followed by a cold front sweeping eastward across the lake 
later on sunday.


loz063>065-091500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
420 am edt wed sep 9 2026

.today...south winds 15 to 20 knots. showers likely this morning,
then showers with a chance of thunderstorms this afternoon. waves
1 to 3 feet building to 2 to 4 feet. 
.tonight...southwest winds 15 to 25 knots becoming west. showers
with a chance of thunderstorms in the evening, then a chance of
showers after midnight. waves 2 to 4 feet building to 3 to
5 feet. 
.thursday...west winds 15 to 20 knots. waves 3 to 6 feet. 
.thursday night...northwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.friday...northwest winds 5 to 10 knots becoming south. waves
2 feet or less. 
.saturday...south winds 5 to 15 knots increasing to 15 to
20 knots. a chance of showers saturday night. waves 1 to 3 feet. 
.sunday...southwest winds 5 to 15 knots becoming northwest. a
chance of showers. 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
349 am edt wed sep 9 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...
pressure will fall, and a trough averaging 29.90 inches moves 
across lake erie today followed by a cold front late tonight into
thursday. high pressure 30.10 inches builds back in for late thursday
into friday, weakening to 30.00 inches for saturday. 



lez061-168-169-091415-
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-
349 am edt wed sep 9 2026

.today...southwest winds 10 to 15 knots. a chance of showers this
morning, then showers with a chance of thunderstorms this
afternoon. waves 1 to 3 feet building to 2 to 4 feet. 
.tonight...southwest winds 15 to 20 knots becoming west 10 to
15 knots. showers with a chance of thunderstorms early, then a
chance of showers and thunderstorms late in the evening. waves
3 to 5 feet. 
.thursday...northwest winds 5 to 10 knots becoming west. waves
1 to 3 feet. 
.thursday night...northwest winds 5 to 15 knots becoming north.
waves 2 feet or less. 
.friday...north winds 10 knots or less becoming southeast. waves
1 foot or less. 
.saturday...south winds 5 to 10 knots. a chance of showers
saturday night. waves 1 foot or less building to 1 to 3 feet. 
.sunday...southwest winds 5 to 10 knots becoming northeast. waves
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$