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open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt thu may 7 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 broad area of high pressure averaging 30.1 inches will 
build from the ohio valley this afternoon to off the mid atlantic 
coast by friday night. a 29.5 inch low will then move from the upper 
great lakes saturday to central quebec sunday before weakening over 
northern quebec monday. a 30.3 inch high is then forecast to build 
from northwest ontario province monday to the central great lakes 
tuesday.


loz062-072100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt thu may 7 2026

.this afternoon...west winds less than 10 knots. waves 1 foot or
less. 
.tonight...west winds 10 knots or less. rain showers likely
early, then a chance of rain showers late in the evening. waves
1 foot or less. 
.friday...west winds 10 knots or less becoming southwest. waves
1 foot or less. 
.friday night...southwest winds 5 to 10 knots becoming south. a
chance of showers overnight. waves 2 feet or less. 
.saturday...southeast winds 5 to 15 knots becoming southwest
15 to 20 knots. a chance of showers. waves 1 to 3 feet. 
.sunday...west winds 5 to 15 knots becoming northwest. a chance
of showers. waves 1 to 3 feet. 
.monday...northwest winds 5 to 15 knots. waves 1 to 2 feet. 

$$

fzus61 kbuf 071402
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expires:202605072100;;166130

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt thu may 7 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 broad area of high pressure averaging 30.1 inches will 
build from the ohio valley this afternoon to off the mid atlantic 
coast by friday night. a 29.5 inch low will then move from the upper 
great lakes saturday to central quebec sunday before weakening over 
northern quebec monday. a 30.3 inch high is then forecast to build 
from northwest ontario province monday to the central great lakes 
tuesday.


loz063>065-072100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt thu may 7 2026

.this afternoon...west winds 5 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet. 
.tonight...west winds 5 to 15 knots. a chance of rain showers.
waves 2 feet or less. 
.friday...west winds 5 to 15 knots becoming southwest. waves
2 feet or less. 
.friday night...southwest winds 5 to 10 knots becoming south. a
chance of showers overnight. waves 2 feet or less. 
.saturday...southeast winds 5 to 10 knots becoming south and
increasing to 15 to 20 knots. a chance of showers during the day,
then showers likely saturday night. waves 2 feet or less building
to 2 to 4 feet. 
.sunday...west winds 15 to 20 knots becoming northwest 5 to
15 knots. a chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet. 
.monday...northwest winds 5 to 15 knots. waves 1 to 3 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
935 am edt thu may 7 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 29.95 inches is over lake erie early today will 
shift eastward this evening and overnight. a weak low pressure 
29.70 inches will move track across the upper ohio valley and near
the southern lakeshore of lake erie friday night into saturday 
morning. a stronger low pressure 29.35 inches will lift northeast
from the upper great lakes towards quebec canada saturday night 
into sunday morning, dragging a cold front across lake erie. high 
pressure 30.10 inches will build across the great lakes sunday 
into monday.


lez061-167>169-072030-
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-
935 am edt thu may 7 2026

.this afternoon...west winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.tonight...west winds 5 to 15 knots becoming southwest. a chance
of showers late. waves 1 to 2 feet. 
.friday...west winds 5 to 10 knots becoming southwest. a chance
of showers in the morning. waves 1 to 2 feet. 
.friday night...southwest winds 5 to 10 knots becoming south. a
chance of showers. waves 1 to 2 feet. 
.saturday...south winds 5 to 15 knots becoming west. a chance of
showers. waves 2 feet or less. 
.sunday...northwest winds 5 to 15 knots becoming north. a chance
of showers during the day. waves 1 to 3 feet. 
.monday...north winds 5 to 15 knots. waves 2 to 4 feet subsiding
to 1 to 3 feet. 

$$