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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun sep 6 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 large high pressure ridge averaging 30.2 inches will gradually 
build from the upper great lakes southeast across the lower lakes 
through tuesday. the ridge will shift southeast on wednesday, 
allowing a warm front to sweep northeastward across the lake, 
followed by a cold front crossing the lake later wednesday night 
into thursday.


loz062-061500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt sun sep 6 2026

.today...northeast winds 5 to 15 knots becoming east. waves 1 to
3 feet. 
.tonight...east winds less than 10 knots. waves 1 foot or less. 
.monday...northwest winds less than 10 knots becoming west. waves
1 foot or less. 
.monday night...southwest winds less than 10 knots becoming west.
waves 1 foot or less. 
.tuesday...southwest winds 10 knots or less becoming south. waves
1 foot or less. 
.wednesday...southwest winds 15 to 25 knots becoming west 15 to
20 knots. showers likely with a chance of thunderstorms. waves
2 to 4 feet building to 5 to 8 feet. waves occasionally around
10 feet. 
.thursday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 060802
glflo 
expires:202609061500;;988246

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun sep 6 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 large high pressure ridge averaging 30.2 inches will gradually 
build from the upper great lakes southeast across the lower lakes 
through tuesday. the ridge will shift southeast on wednesday, 
allowing a warm front to sweep northeastward across the lake, 
followed by a cold front crossing the lake later wednesday night 
into thursday.


loz063>065-061500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt sun sep 6 2026

.today...northeast winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.tonight...north winds 10 knots or less. waves 2 feet or less. 
.monday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.monday night...west winds 5 to 10 knots. waves 1 foot or less. 
.tuesday...west winds 10 knots or less becoming south 10 to
15 knots. waves 2 feet or less. 
.wednesday...south winds 15 to 25 knots becoming west. showers
with a chance of thunderstorms. waves 2 to 4 feet building to
4 to 7 feet. waves occasionally around 9 feet. 
.thursday...west winds 15 to 25 knots becoming northwest. waves
5 to 8 feet subsiding to 3 to 5 feet. waves occasionally around
10 feet. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
348 am edt sun sep 6 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 persist into tuesday. low 
pressure 29.30 inches will move east near hudson bay on wednesday,
extending a cold front across lake erie on thursday.


lez061-168-169-061415-
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-
348 am edt sun sep 6 2026

.today...northeast winds 5 to 15 knots. a slight chance of
showers. waves 1 to 3 feet. 
.tonight...northeast winds 5 to 15 knots becoming east. a slight
chance of showers early. waves 1 to 3 feet. 
.monday...east winds 5 to 10 knots becoming northeast. waves
1 foot or less. 
.monday night...northeast winds 10 knots or less becoming
southeast. waves 1 foot or less. 
.tuesday...southeast winds 10 knots or less becoming south and
increasing to 15 to 20 knots. waves 1 foot or less building to
1 to 3 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west. a
chance of showers. waves 3 to 5 feet building to 4 to 7 feet.
waves occasionally around 9 feet. 
.thursday...west winds 10 to 15 knots becoming northwest. waves
3 to 5 feet subsiding to 1 to 3 feet. 

$$