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open lake forecast for lake ontario
national weather service buffalo ny
1001 am edt fri apr 25 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 29.9 inch low over the midwest will move into the 
central great lakes this afternoon. this low will pass over or just 
north of lake ontario tonight, with a cold front moving across the 
lake late tonight, before the low moves down the saint lawrence 
valley saturday. a 30.4 inch high will build east across the great 
lakes saturday night through sunday. the high will move east of the 
lake monday. a 29.3 inch surface low will cross quebec tuesday, with 
a cold front pushing across the lake tuesday evening.


loz062-252100-
lake ontario open waters from the niagara river to hamlin beach-
1001 am edt fri apr 25 2025

.this afternoon...east winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers, then showers likely late. waves
2 to 3 feet. 
.tonight...east winds 5 to 15 knots becoming northwest. a chance
of showers early, then occasional showers with a chance of
thunderstorms from late evening on. waves 1 to 2 feet. 
.saturday...west winds 10 to 15 knots increasing to 30 knots in
the afternoon. showers likely with a chance of thunderstorms in
the morning, then a chance of showers in the afternoon. waves
1 to 2 feet building to 3 to 6 feet. 
.saturday night...west winds to 30 knots becoming northwest. a
chance of showers in the evening. waves 4 to 7 feet subsiding to
3 to 6 feet. waves occasionally around 9 feet. 
.sunday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.monday...southwest winds 5 to 10 knots becoming south. waves
2 feet or less. 
.tuesday...southwest winds 15 to 20 knots becoming west. showers
likely. waves 2 to 4 feet building to 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 251401
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open lake forecast for lake ontario
national weather service buffalo ny
1001 am edt fri apr 25 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 29.9 inch low over the midwest will move into the 
central great lakes this afternoon. this low will pass over or just 
north of lake ontario tonight, with a cold front moving across the 
lake late tonight, before the low moves down the saint lawrence 
valley saturday. a 30.4 inch high will build east across the great 
lakes saturday night through sunday. the high will move east of the 
lake monday. a 29.3 inch surface low will cross quebec tuesday, with 
a cold front pushing across the lake tuesday evening.


loz063>065-252100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1001 am edt fri apr 25 2025

.this afternoon...northeast winds 15 to 20 knots becoming east
5 to 15 knots. a chance of showers, then showers likely with a
chance of thunderstorms late. waves 2 feet or less. 
.tonight...east winds 5 to 10 knots becoming south. showers
likely early, then occasional showers with a chance of
thunderstorms from late evening on. waves 2 feet or less. 
.saturday...southwest winds 5 to 10 knots becoming west and
increasing to 30 knots in the afternoon. showers likely with a
chance of thunderstorms in the morning, then a chance of showers
in the afternoon. waves 1 to 2 feet building to 5 to 8 feet.
waves occasionally around 10 feet. 
.saturday night...west winds to 30 knots becoming northwest. a
chance of showers. waves 5 to 9 feet. waves occasionally around
11 feet. 
.sunday...northwest winds 15 to 25 knots becoming west and
diminishing to 5 to 15 knots. a chance of showers during the day.
waves 5 to 8 feet subsiding to 1 to 3 feet. waves occasionally
around 10 feet. 
.monday...southwest winds 5 to 10 knots becoming south and
increasing to 15 to 20 knots. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming west. showers
likely during the day, then showers tuesday night. waves 1 to
3 feet building to 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
917 am edt fri apr 25 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...
low pressure 29.90 inches will move northeast across the great 
lakes this afternoon, extending a cold front across the lake 
tonight. high pressure 30.40 will build over the region behind the
front this weekend before drifting east of lake erie on monday. 
low pressure 29.50 inches will track across the northern plains 
and upper midwest monday into tuesday, lifting a warm front across
the lake monday night. this low will extend a cold front east 
through the area by late tuesday.


lez061-168-169-252015-
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-
917 am edt fri apr 25 2025

.rest of today...southeast winds 5 to 10 knots becoming east. a
chance of showers with isolated thunderstorms late this morning,
then showers likely early this afternoon. a chance of showers
with a slight chance of thunderstorms late. waves 1 foot or less.
.tonight...east winds 5 to 15 knots becoming west. a chance of
showers with a slight chance of thunderstorms early, then showers
likely with a slight chance of thunderstorms. a chance of showers
late. patchy fog from late evening on. waves 2 feet or less. 
.saturday...west winds 15 to 20 knots. a chance of showers in the
morning. waves 1 to 3 feet building to 3 to 6 feet. 
.saturday night...northwest winds 15 to 20 knots diminishing to
10 to 15 knots. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.sunday...northwest winds 5 to 15 knots becoming southwest less
than 10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.monday...south winds 10 knots or less increasing to 10 to
15 knots. waves 1 foot or less building to 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming west 10 to
15 knots. showers and thunderstorms likely. waves 2 to 4 feet
building to 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$