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open lake forecast for lake ontario
national weather service buffalo ny
1007 pm edt mon apr 6 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 29.9 inch clipper low will cross lake ontario tonight, 
then will slide off the new england coast tuesday. a 30.6 inch high 
will then build from the central great lakes tuesday to the new 
england coastline wednesday, before moving southeast of nova scotia 
thursday. a cold front will cross the lake friday, with a 30.5 inch 
high then forecast to build east across the great lakes saturday.


loz062-070900-
lake ontario open waters from the niagara river to hamlin beach-
1007 pm edt mon apr 6 2026

.rest of tonight...west winds less than 10 knots increasing to
15 to 25 knots after midnight. a chance of rain and snow showers
late this evening, then rain and snow showers after midnight.
snow showers late. waves 2 feet or less building to 3 to 5 feet. 
.tuesday...northwest winds to 30 knots diminishing to 15 to
20 knots. snow showers likely early, then a chance of snow
showers late in the morning. waves 5 to 8 feet subsiding to 2 to
4 feet. waves occasionally around 10 feet. 
.tuesday night...northwest winds 15 to 20 knots becoming
southeast and diminishing to less than 10 knots overnight. waves
2 to 4 feet subsiding to 1 foot or less. 
.wednesday...southeast winds 10 knots or less becoming east 10 to
15 knots. waves 2 feet or less. 
.wednesday night...east winds 10 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday...south winds 15 to 25 knots becoming southwest. a
chance of showers thursday night. waves 3 to 6 feet subsiding to
1 to 3 feet. 
.friday...southwest winds 5 to 10 knots becoming northwest. a
chance of rain showers. waves 2 feet or less. 
.saturday...northwest winds 10 knots or less becoming northeast.
waves 2 feet or less. 

$$

fzus61 kbuf 070207
glflo 
expires:202604070900;;953085

open lake forecast for lake ontario
national weather service buffalo ny
1007 pm edt mon apr 6 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 29.9 inch clipper low will cross lake ontario tonight, 
then will slide off the new england coast tuesday. a 30.6 inch high 
will then build from the central great lakes tuesday to the new 
england coastline wednesday, before moving southeast of nova scotia 
thursday. a cold front will cross the lake friday, with a 30.5 inch 
high then forecast to build east across the great lakes saturday.


loz063>065-070900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1007 pm edt mon apr 6 2026

.rest of tonight...west winds 5 to 10 knots becoming northwest
and increasing to 15 to 20 knots. a chance of rain showers late
this evening, then rain and snow showers after midnight. waves
1 to 3 feet building to 2 to 4 feet. 
.tuesday...north winds to 30 knots becoming northwest 15 to
25 knots. snow showers early, then a chance of snow showers.
waves 3 to 6 feet building to 5 to 8 feet, then subsiding to 3 to
5 feet. waves occasionally around 10 feet. 
.tuesday night...west winds 15 to 20 knots becoming northwest
5 to 15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...southwest winds 10 knots or less becoming east.
waves 2 feet or less. 
.wednesday night...southeast winds 10 to 15 knots becoming south
and increasing to 15 to 25 knots. waves 1 to 3 feet building to
3 to 6 feet. 
.thursday...south winds 15 to 25 knots. waves 3 to 6 feet. 
.friday...south winds 15 to 20 knots becoming northwest 5 to
15 knots. a chance of rain showers. waves 2 to 4 feet subsiding
to 2 feet or less. 
.saturday...northwest winds 5 to 15 knots becoming east. waves
1 to 3 feet subsiding to 1 foot or less. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
338 am edt tue apr 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 30.60 inches will build across the area today and
slowly drift eastward into wednesday. low pressure 29.70 inches 
will move northeast across the northern great lakes, lifting a 
warm front north late wednesday. a cold front will move across the
lake on friday with high pressure 30.40 inches building into the
region on saturday. 


lez061-167>169-071415-
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-
338 am edt tue apr 7 2026

.today...northwest winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of snow showers early. waves 5 to 8 feet
subsiding to 1 to 3 feet. waves occasionally around 10 feet. 
.tonight...north winds 10 knots or less becoming southeast. waves
2 feet or less. 
.wednesday...southeast winds 5 to 10 knots becoming east. waves
1 foot or less. 
.wednesday night...southeast winds 5 to 15 knots becoming south
15 to 20 knots. waves 1 to 3 feet building to 3 to 5 feet. 
.thursday...south winds 15 to 20 knots diminishing to 5 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday...south winds 10 knots or less becoming north. rain
showers likely during the day. waves 2 feet or less. 
.saturday...north winds 10 knots or less becoming east. waves
2 feet or less. 

$$