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open lake forecast for lake ontario
national weather service buffalo ny
405 am edt tue apr 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 29.9 inch clipper low will cross lake ontario early 
this morning, then slide off the new england coast today. a 30.6 
inch high will then build from the central great lakes to the new 
england coastline through 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.


loz062-071500-
lake ontario open waters from the niagara river to hamlin beach-
405 am edt tue apr 7 2026

.today...northwest winds to 30 knots diminishing to 15 to
20 knots. snow showers likely early, then a chance of snow
showers late this morning. waves 5 to 9 feet subsiding to 3 to
5 feet. waves occasionally around 11 feet. 
.tonight...northwest winds 15 to 20 knots becoming southwest and
diminishing to less than 10 knots after midnight. waves 1 to
3 feet subsiding to 1 foot or less. 
.wednesday...south 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 20 knots becoming southwest 10 to
15 knots. a chance of showers. waves 3 to 5 feet subsiding to
1 to 3 feet. 
.friday...west winds 5 to 10 knots becoming northwest. rain
showers likely during the day, then a chance of rain showers
friday night. waves 2 feet or less. 
.saturday...northwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 

$$

fzus61 kbuf 070805
glflo 
expires:202604071500;;967254

open lake forecast for lake ontario
national weather service buffalo ny
405 am edt tue apr 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 29.9 inch clipper low will cross lake ontario early 
this morning, then slide off the new england coast today. a 30.6 
inch high will then build from the central great lakes to the new 
england coastline through 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>065-071500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
405 am edt tue apr 7 2026

.today...west winds to 30 knots becoming northwest 15 to
25 knots. snow showers early, then a chance of snow showers.
waves 7 to 11 feet subsiding to 3 to 6 feet. waves occasionally
around 14 feet. 
.tonight...northwest winds 15 to 20 knots diminishing to 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 1 foot 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 becoming southwest. a
chance of rain showers. waves 3 to 6 feet subsiding to 2 to
4 feet. 
.friday...south winds 5 to 15 knots becoming northwest. a chance
of rain showers. waves 2 feet or less. 
.saturday...northwest winds 5 to 15 knots becoming south less
than 10 knots. waves 2 feet or less. 

$$