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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt wed sep 17 2025

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 30.3 inch high across quebec will drift east off the 
new england coast by tonight, while remaining ridged over the lake. 
a cold front will cross the lake thursday night, with another area 
of high pressure over western ontario builds southeast across the 
lower great lakes friday and saturday.


loz062-172100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt wed sep 17 2025

.this afternoon...east winds 5 to 10 knots becoming northeast.
waves 1 foot or less. 
.tonight...east winds less than 10 knots. waves 1 foot or less. 
.thursday...southwest winds 10 knots or less becoming west. waves
1 foot or less. 
.thursday night...west winds 5 to 15 knots becoming north. waves
2 feet or less building to 2 to 3 feet. 
.friday...north winds 5 to 15 knots becoming east 15 to 20 knots.
waves 1 to 3 feet. 
.saturday...east winds 10 to 15 knots becoming southeast. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...southeast winds 10 to 15 knots becoming south. waves
1 to 2 feet. 

$$

fzus61 kbuf 171402
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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt wed sep 17 2025

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 30.3 inch high across quebec will drift east off the 
new england coast by tonight, while remaining ridged over the lake. 
a cold front will cross the lake thursday night, with another area 
of high pressure over western ontario builds southeast across the 
lower great lakes friday and saturday.


loz063>065-172100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt wed sep 17 2025

.this afternoon...south winds 5 to 15 knots becoming northeast.
waves 2 feet or less. 
.tonight...east winds 10 knots or less becoming southwest. waves
1 foot or less. 
.thursday...southwest winds 5 to 15 knots becoming west. waves
2 feet or less. 
.thursday night...west winds 10 to 15 knots becoming north 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.friday...north winds 15 to 20 knots becoming northeast. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...east winds 10 to 15 knots becoming southeast 15 to
20 knots. waves 1 to 3 feet. 
.sunday...south winds 15 to 20 knots. waves 2 to 4 feet building
to 3 to 5 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
919 am edt wed sep 17 2025

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 ridging averaging 30.20 inches and extending from
new england lingers over lake erie before a cold front sweeps
generally southward across the lake late thursday afternoon
through evening. behind the front, another ridge averaging 30.20 
inches affects lake erie as the parent high pressure center moves 
from near hudson bay thursday night to atlantic waters near nova 
scotia by this monday. however, a warm front will sweep northward 
across lake erie on sunday. 


lez164>168-172030-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm 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-
919 am edt wed sep 17 2025

.this afternoon...southeast winds 10 knots or less becoming
northeast. waves 1 foot or less. 
.tonight...east winds less than 10 knots. waves 1 foot or less. 
.thursday...southwest winds 10 knots or less. waves 1 foot or
less. 
.thursday night...west winds 5 to 15 knots becoming northeast.
waves 2 feet or less. 
.friday...northeast winds 10 to 15 knots becoming east 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.saturday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. waves 2 to 4 feet building to 3 to 5 feet, then
subsiding to 1 to 3 feet. 
.sunday...south winds 5 to 15 knots. a chance of showers sunday
night. waves 1 to 3 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
919 am edt wed sep 17 2025

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 ridging averaging 30.20 inches and extending from
new england lingers over lake erie before a cold front sweeps
generally southward across the lake late thursday afternoon
through evening. behind the front, another ridge averaging 30.20 
inches affects lake erie as the parent high pressure center moves 
from near hudson bay thursday night to atlantic waters near nova 
scotia by this monday. however, a warm front will sweep northward 
across lake erie on sunday. 


lez061-169-172030-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
919 am edt wed sep 17 2025

.this afternoon...south winds less than 10 knots becoming
northeast. waves 1 foot or less. 
.tonight...east winds less than 10 knots. waves 1 foot or less. 
.thursday...southwest winds 10 knots or less. waves 2 feet or
less. 
.thursday night...west winds 10 to 15 knots becoming north. waves
1 to 2 feet. 
.friday...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet. 
.saturday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.sunday...south winds 5 to 15 knots. a chance of showers sunday
night. waves 1 to 3 feet. 

$$