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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est thu nov 6 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 30.2 inch high will slide east off the mid-atlantic 
coast tonight. a 29.4 inch low over the upper great lakes tonight 
will then slowly deepen to 29.3 inches as it makes its way to 
western and central quebec friday and friday night, with its 
trailing cold front crossing the lake friday night. another 29.8 
inch surface low will deepen to 29.6 inches as it tracks from the 
ohio valley to new england sunday and monday, then strengthen 
further while moving into east-central quebec by tuesday.


loz062-071000-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm est thu nov 6 2025

.overnight...west winds 5 to 15 knots becoming south. waves
1 to 2 feet. 
.friday...south winds 15 to 25 knots becoming southwest. showers
from late morning on. waves 2 to 4 feet building to 4 to 7 feet.
waves occasionally around 9 feet. 
.friday night...southwest winds 15 to 25 knots becoming west.
showers likely. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.saturday...northwest winds 15 to 20 knots diminishing to 5 to
15 knots. waves 4 to 7 feet subsiding to 1 to 2 feet. waves
occasionally around 9 feet. 
.saturday night...north winds 5 to 10 knots becoming east and
increasing to 15 to 20 knots. a chance of showers in the evening,
then showers likely overnight. waves 1 to 3 feet. 
.sunday...east winds 15 to 25 knots becoming north. rain showers
during the day, then rain showers with snow showers likely sunday
night. waves 3 to 6 feet building to 5 to 8 feet, then subsiding
to 3 to 5 feet. waves occasionally around 10 feet. 
.monday...northwest winds 15 to 25 knots. a chance of snow
showers during the day, then snow showers likely monday night.
waves 3 to 6 feet building to 5 to 7 feet. waves occasionally
around 9 feet. 
.tuesday...west winds to 30 knots becoming southwest. snow
showers likely with a chance of rain showers during the day, then
rain showers likely tuesday night. waves 6 to 9 feet building to
7 to 11 feet. waves occasionally around 14 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1002 pm est thu nov 6 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 30.2 inch high will slide east off the mid-atlantic 
coast tonight. a 29.4 inch low over the upper great lakes tonight 
will then slowly deepen to 29.3 inches as it makes its way to 
western and central quebec friday and friday night, with its 
trailing cold front crossing the lake friday night. another 29.8 
inch surface low will deepen to 29.6 inches as it tracks from the 
ohio valley to new england sunday and monday, then strengthen 
further while moving into east-central quebec by tuesday.


loz063>065-071000-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm est thu nov 6 2025

.overnight...west winds 5 to 15 knots becoming south. a
chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.friday...south winds 15 to 25 knots increasing to 30 knots. a
chance of showers late in the morning. showers in the afternoon.
waves 3 to 5 feet building to 6 to 9 feet. waves occasionally
around 11 feet. 
.friday night...southwest winds to 30 knots becoming west 15 to
25 knots. showers. waves 5 to 8 feet. waves occasionally around
10 feet. 
.saturday...west winds 15 to 25 knots becoming northwest and
diminishing to around 10 knots. showers likely in the morning,
then a chance of showers in the afternoon. waves 5 to 8 feet
subsiding to 2 to 4 feet. waves occasionally around 10 feet. 
.saturday night...northwest winds 5 to 15 knots becoming east. a
chance of rain showers in the evening, then rain showers likely
overnight. waves 1 to 3 feet. 
.sunday...east winds 15 to 25 knots becoming northwest. rain
showers during the day, then rain showers with snow showers
likely sunday night. waves 3 to 6 feet building to 4 to 7 feet,
then subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.monday...northwest winds 15 to 25 knots becoming west to
30 knots. snow and rain showers likely during the day, then snow
showers monday night. waves 3 to 6 feet building to 6 to 9 feet.
waves occasionally around 11 feet. 
.tuesday...west winds to 30 knots becoming southwest. snow
showers with rain showers likely during the day, then rain
showers tuesday night. waves 8 to 11 feet building to 9 to
13 feet, then subsiding to 8 to 11 feet. waves occasionally
around 16 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
337 am est fri nov 7 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 30.20 inches will drift east of the region tonight
as low pressure 29.30 inches tracks east across the upper great
lakes. the low will push a cold front east across lake erie on
friday afternoon into friday evening. low pressure 29.70 inches
will move east across lake erie on sunday with a trough averaging
30.00 inches lingering over the lake through early next week.


lez061-167>169-071515-
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-
337 am est fri nov 7 2025

.today...south winds to 30 knots becoming southwest. rain. a
chance of rain late. waves 5 to 8 feet building to 7 to 11 feet.
waves occasionally around 14 feet. 
.tonight...west winds to 30 knots becoming northwest 15 to
25 knots. a chance of rain early, then a slight chance of rain
from late evening on. waves 5 to 8 feet subsiding to 3 to 6 feet.
waves occasionally around 10 feet. 
.saturday...northwest winds 5 to 15 knots becoming north. a
chance of rain in the afternoon. waves 2 to 4 feet subsiding to
1 foot or less. 
.saturday night...northeast winds 10 knots or less becoming east
10 to 15 knots. a chance of rain in the evening, then rain
overnight. waves 2 feet or less. 
.sunday...northeast winds 15 to 25 knots becoming northwest. rain
during the day, then rain and snow sunday night. waves 3 to
5 feet building to 4 to 7 feet, then subsiding to 3 to 6 feet.
waves occasionally around 9 feet. 
.monday...northwest winds 15 to 25 knots becoming west to
30 knots. snow likely during the day, then snow monday night.
waves 4 to 7 feet building to 8 to 11 feet. waves occasionally
around 14 feet. 
.tuesday...west winds to 30 knots becoming southwest. rain and
snow likely during the day, then rain likely tuesday night. waves
10 to 14 feet. waves occasionally around 18 feet. 

$$