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open lake forecast for lake ontario
national weather service buffalo ny
1236 pm edt thu apr 16 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 move across the central great lakes 
today before reaching southern quebec tonight, then drift off the 
new england coast by friday night. a 30.0 inch high is then forecast 
to build from the central great lakes friday to the lower great 
lakes saturday morning, then off the east coast saturday night. a 
29.3 inch surface low to the north of lake superior saturday will 
deepen to 28.9 inches by sunday, with a trailing cold front crossing 
the lake saturday night. a 30.4 inch surface high will push from the 
plains to the upper ohio valley from sunday through monday. the high 
is expected to move off the mid-atlantic coast tuesday.


loz062-162100-
lake ontario open waters from the niagara river to hamlin beach-
1236 pm edt thu apr 16 2026

.this afternoon...southwest winds 15 to 20 knots. showers with a
chance of thunderstorms. some thunderstorms may produce gusty
winds. waves 1 to 3 feet building to 2 to 4 feet. 
.tonight...west winds 5 to 15 knots becoming northwest. showers
likely with a chance of thunderstorms early, then a chance of
showers. some thunderstorms may produce gusty winds early. waves
2 to 4 feet subsiding to 1 to 2 feet. 
.friday...northwest winds 10 knots or less becoming south. waves
1 foot or less. 
.friday night...southeast winds 10 knots or less becoming east.
waves 1 foot or less. 
.saturday...southeast winds 10 to 15 knots becoming west 15 to
20 knots. rain showers. waves 2 feet or less building to 2 to
4 feet. 
.sunday...west winds 15 to 20 knots becoming northwest. a chance
of rain showers. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.monday...northwest winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 4 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 9 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 161637
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open lake forecast for lake ontario
national weather service buffalo ny
1236 pm edt thu apr 16 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 move across the central great lakes 
today before reaching southern quebec tonight, then drift off the 
new england coast by friday night. a 30.0 inch high is then forecast 
to build from the central great lakes friday to the lower great 
lakes saturday morning, then off the east coast saturday night. a 
29.3 inch surface low to the north of lake superior saturday will 
deepen to 28.9 inches by sunday, with a trailing cold front crossing 
the lake saturday night. a 30.4 inch surface high will push from the 
plains to the upper ohio valley from sunday through monday. the high 
is expected to move off the mid-atlantic coast tuesday.


loz063>065-162100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1236 pm edt thu apr 16 2026

.this afternoon...southwest winds 10 to 15 knots. showers with a
chance of thunderstorms. some thunderstorms may produce gusty
winds. waves 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots becoming northwest.
showers with a chance of thunderstorms early, then a chance of
showers from late evening on. some thunderstorms may produce
gusty winds early. waves 1 to 3 feet. 
.friday...north winds 10 knots or less becoming west. a chance of
showers in the morning. waves 2 feet or less. 
.friday night...west winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.saturday...southeast winds 15 to 20 knots becoming west. rain
showers. waves 1 to 3 feet building to 3 to 5 feet. 
.sunday...west winds 15 to 25 knots becoming northwest. rain
showers likely during the day, then a chance of rain showers
sunday night. waves 3 to 6 feet building to 5 to 9 feet. waves
occasionally around 11 feet. 
.monday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 5 to 9 feet subsiding to 3 to 5 feet. waves
occasionally around 11 feet. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
946 am edt thu apr 16 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...
a weak trough averaging 29.90 inches resides over lake erie for
the time being before a cold front moves southeastward across the
lake this evening through tonight. behind the front, a high
pressure ridge averaging 30.00 inches builds from the northern
great lakes through friday. during friday night through 
saturday morning, the ridge will exit eastward and allow a warm 
front to sweep northward across lake erie. a cold front should 
then sweep eastward across lake erie late saturday afternoon 
through saturday night. behind the cold front, a trough averaging 
29.90 inches should linger over the lake through sunday before a 
ridge averaging 30.30 inches builds from the west by monday. on 
tuesday, the ridge should exit eastward and allow a warm front to 
sweep northward across lake erie. 


lez061-165>169-162030-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm 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-
946 am edt thu apr 16 2026

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

winds and waves higher in and near thunderstorms.

$$