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open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt sat mar 14 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 29.5 inch low will exit across the canadian maritimes 
this evening as a 30.4 inch high builds into the central great 
lakes, then across the lake tonight before moving east of the lake 
sunday. meanwhile, a 29.5 inch surface low over the mid mississippi 
valley sunday morning will track northeastward and deepen to 28.9 
inches just to the west of the lake monday morning, before pushing 
northeastward across quebec through tuesday. this low will sweep a 
strong cold front across the lake monday afternoon, with a 30.4 inch 
high building across the great lakes and ohio valley tuesday. the 
high will then shift east of the lake wednesday and reach the east 
coast by wednesday evening.


loz063>065-150900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 pm edt sat mar 14 2026

...gale watch in effect from monday evening through tuesday
evening...

.overnight...northwest winds 5 to 15 knots becoming east.
waves 4 to 7 feet subsiding to 1 to 3 feet. waves occasionally
around 9 feet. 
.sunday...southeast winds 15 to 25 knots. snow likely in the
morning. waves 1 to 3 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.sunday night...southeast winds to 30 knots increasing to 35 knot
gales. waves 5 to 8 feet building to 7 to 10 feet. waves
occasionally around 13 feet. 
.monday...southeast gales to 35 knots becoming southwest and
diminishing to 30 knots in the afternoon. showers. waves 6 to
10 feet subsiding to 5 to 8 feet. waves occasionally around
13 feet. 
.monday night...west winds to 30 knots increasing to 40 knot
gales. rain and snow showers in the evening, then snow showers
overnight. waves 7 to 10 feet building to 11 to 16 feet. waves
occasionally around 20 feet. 
.tuesday...west gales to 40 knots becoming northwest and
diminishing to 15 to 25 knots. lake effect snow showers. waves
13 to 17 feet subsiding to 7 to 10 feet. waves occasionally
around 22 feet. 
.wednesday...west winds 5 to 15 knots becoming south 15 to
20 knots. waves 3 to 6 feet subsiding to 3 to 5 feet. 
.thursday...south winds 15 to 20 knots becoming southwest. a
chance of rain showers thursday night. waves 3 to 5 feet
subsiding to 2 to 4 feet. 

$$
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