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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt tue jul 15 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 30.1 inch high will slowly drift from the great lakes to new 
england through wednesday. a 29.7 inch low will track northeastward 
across the great lakes and into quebec wednesday night and thursday, 
with its trailing cold front pushing across the lake early friday. a 
30.2 inch high will then build into the region later friday through 
saturday.


loz062-152100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt tue jul 15 2025

.this afternoon...light and variable winds. waves 1 foot or less. 
.tonight...southeast winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.wednesday...southwest winds 10 knots or less becoming southeast.
a chance of showers and thunderstorms in the afternoon. waves
1 foot or less. 
.wednesday night...south winds 5 to 10 knots becoming southwest.
a chance of showers and thunderstorms in the evening. waves
1 foot or less. 
.thursday...southwest winds 5 to 15 knots becoming north. showers
likely with a chance of thunderstorms. waves 1 to 3 feet. 
.friday...northeast winds 5 to 15 knots becoming north 10 knots
or less. waves 2 feet or less. 
.saturday...east winds 5 to 10 knots becoming southwest. a chance
of showers saturday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 151402
glflo 
expires:202507152100;;484245

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt tue jul 15 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 30.1 inch high will slowly drift from the great lakes to new 
england through wednesday. a 29.7 inch low will track northeastward 
across the great lakes and into quebec wednesday night and thursday, 
with its trailing cold front pushing across the lake early friday. a 
30.2 inch high will then build into the region later friday through 
saturday.


loz063>065-152100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt tue jul 15 2025

.this afternoon...west winds less than 10 knots becoming north.
waves 1 foot or less. 
.tonight...southeast winds 10 knots or less becoming south. waves
1 foot or less. 
.wednesday...south winds 10 knots or less. a chance of showers
and thunderstorms in the afternoon. waves 1 foot or less. 
.wednesday night...south winds 10 knots or less becoming
southwest. a chance of showers and thunderstorms. waves 1 foot or
less. 
.thursday...southwest winds 5 to 15 knots becoming northwest. a
chance of showers and thunderstorms. waves 1 to 3 feet. 
.friday...north winds 5 to 15 knots becoming west. waves 1 to
3 feet subsiding to 1 foot or less. 
.saturday...southwest winds 10 knots or less. a chance of showers
saturday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
334 pm edt tue jul 15 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 30.10 inches will drift east tonight with a warm
front lifting northeast across the lake on wednesday. a cold front
will cross the lake thursday and slow over the ohio valley friday,
allowing high pressure 30.00 inches to build south across lake 
erie friday into saturday. the front will lift back north as a
warm front late saturday into sunday as a cold front approaches
from the west.


lez061-168-169-160215-
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-
334 pm edt tue jul 15 2025

.tonight...east winds 10 knots or less becoming south. waves
1 foot or less. 
.wednesday...south winds 5 to 10 knots. a slight chance of
showers and thunderstorms late in the morning. a chance of
showers and thunderstorms in the afternoon. some thunderstorms
may produce heavy rainfall from late morning on. waves 1 foot or
less. 
.wednesday night...south winds 5 to 15 knots becoming southwest.
showers likely with a chance of thunderstorms. some thunderstorms
may produce heavy rainfall in the evening. waves 2 feet or less. 
.thursday...southwest winds 15 to 20 knots becoming west. showers
likely with a chance of thunderstorms. waves 2 to 4 feet building
to 3 to 5 feet. 
.thursday night...west winds 15 to 20 knots becoming north 10 to
15 knots. showers likely with a chance of thunderstorms in the
evening, then a chance of showers overnight. waves 3 to 5 feet
subsiding to 2 to 3 feet. 
.friday...northeast winds 5 to 10 knots becoming east. waves
2 feet or less. 
.saturday...west winds 5 to 10 knots becoming southwest. showers
likely with a chance of thunderstorms saturday night. waves
2 feet or less. 
.sunday...west winds 5 to 10 knots becoming northeast. a chance
of showers during the day. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$