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open lake forecast for lake ontario
national weather service buffalo ny
410 pm edt fri apr 3 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 29.6 inch low will track across southern quebec today, 
pushing a weak cold front across the lake this afternoon. a 29.4 
inch surface low will track through the central great lakes 
saturday, then into quebec saturday night and sunday, while dragging 
a strong cold front across the lake saturday night, with a secondary 
cold front then following sunday night and monday. a 30.5 inch high 
will then build across the great lakes tuesday and tuesday night, 
before sliding east and off the new england coast wednesday.


loz062-040300-
lake ontario open waters from the niagara river to hamlin beach-
410 pm edt fri apr 3 2026

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

$$

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open lake forecast for lake ontario
national weather service buffalo ny
410 pm edt fri apr 3 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 29.6 inch low will track across southern quebec today, 
pushing a weak cold front across the lake this afternoon. a 29.4 
inch surface low will track through the central great lakes 
saturday, then into quebec saturday night and sunday, while dragging 
a strong cold front across the lake saturday night, with a secondary 
cold front then following sunday night and monday. a 30.5 inch high 
will then build across the great lakes tuesday and tuesday night, 
before sliding east and off the new england coast wednesday.


loz063>065-040300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
410 pm edt fri apr 3 2026

.tonight...west winds 15 to 20 knots becoming north and
diminishing to 5 to 10 knots. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.saturday...northeast winds 10 to 15 knots becoming east 15 to
20 knots. a chance of rain showers early in the afternoon. rain
showers likely late. waves 1 to 3 feet building to 2 to 4 feet. 
.saturday night...east winds 15 to 25 knots becoming southwest to
30 knots. showers. waves 2 to 4 feet building to 5 to 8 feet.
waves occasionally around 10 feet. 
.sunday...west winds 15 to 25 knots increasing to 30 knots. rain
showers in the morning, then a chance of rain showers in the
afternoon. waves 3 to 6 feet building to 7 to 10 feet. waves
occasionally around 13 feet. 
.sunday night...west winds to 30 knots. waves 6 to 10 feet. waves
occasionally around 13 feet. 
.monday...west winds 15 to 25 knots. a chance of snow and rain
showers monday night. waves 5 to 8 feet subsiding to 3 to 6 feet.
waves occasionally around 10 feet. 
.tuesday...northwest winds 15 to 25 knots diminishing to 10 to
15 knots. a chance of snow showers during the day. waves 4 to
7 feet subsiding to 1 to 3 feet. waves occasionally around
9 feet. 
.wednesday...south winds 5 to 10 knots increasing to 30 knots.
waves 1 to 2 feet building to 6 to 9 feet. waves occasionally
around 11 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
335 pm edt fri apr 3 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...
low pressure 29.50 inches moving northeast through the upper great 
lakes will first lift a warm front north across the area saturday 
morning, followed by a cold front saturday evening. a trough 
averaging 30.00 inches will linger through monday. high pressure 
30.50 inches will build across the region for tuesday into
wednesday.


lez061-168-169-040215-
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-
335 pm edt fri apr 3 2026

.tonight...west winds 5 to 15 knots becoming northeast. a chance
of rain showers with a slight chance of thunderstorms late. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...east winds 5 to 15 knots. a chance of rain showers
with a slight chance of thunderstorms in the morning, then a
slight chance of rain showers and thunderstorms early in the
afternoon. a chance of thunderstorms with a slight chance of rain
showers late. waves 2 feet or less. 
.saturday night...southwest winds 10 to 15 knots becoming west.
rain showers with a chance of thunderstorms in the evening, then
rain showers overnight. waves 1 to 3 feet building to 2 to
4 feet. 
.sunday...west winds 15 to 20 knots. rain showers likely in the
morning. waves 2 to 4 feet building to 3 to 6 feet. 
.sunday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.monday...west winds 10 to 15 knots becoming northwest 15 to
20 knots. a chance of rain showers during the day, then a chance
of snow and rain showers monday night. waves 1 to 2 feet building
to 2 to 4 feet. 
.tuesday...northwest winds 15 to 20 knots becoming southeast and
diminishing to less than 10 knots. waves 2 to 4 feet subsiding to
2 feet or less. 
.wednesday...southeast winds 5 to 10 knots becoming south and
increasing to 15 to 25 knots. waves 2 feet or less building to
3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$