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open lake forecast for lake ontario
national weather service buffalo ny
404 am edt sun apr 19 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 30.4 inch high will then settle southeast across the 
great lakes through monday night, before sliding off the mid-
atlantic coast tuesday. a 29.4 inch low over lower hudson bay 
tuesday, will weaken to 29.9 inches by wednesday, while pushing an 
attendant weak cold front across the lake tuesday night. a 30.2 inch 
high will then build across the great lakes region wednesday and 
thursday. a warm front will then approach the lake by friday.


loz062-191500-
lake ontario open waters from the niagara river to hamlin beach-
404 am edt sun apr 19 2026

.today...west winds 10 to 15 knots. a chance of rain showers
early. a chance of rain showers late. waves 2 to 4 feet. 
.tonight...west winds 10 to 15 knots becoming northwest 15 to
20 knots. a chance of rain and snow showers early, then a chance
of rain showers late in the evening. waves 2 to 4 feet. 
.monday...northwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday night...northwest winds 5 to 15 knots becoming southwest
10 knots or less. waves 1 to 3 feet subsiding to 1 foot or less. 
.tuesday...south winds 5 to 15 knots becoming northeast. waves
1 to 3 feet. 
.wednesday...northeast winds 10 knots or less becoming northwest.
waves 1 foot or less. 
.thursday...west winds 10 knots or less becoming east. waves
1 foot or less. 

$$

fzus61 kbuf 190804
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open lake forecast for lake ontario
national weather service buffalo ny
404 am edt sun apr 19 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 30.4 inch high will then settle southeast across the 
great lakes through monday night, before sliding off the mid-
atlantic coast tuesday. a 29.4 inch low over lower hudson bay 
tuesday, will weaken to 29.9 inches by wednesday, while pushing an 
attendant weak cold front across the lake tuesday night. a 30.2 inch 
high will then build across the great lakes region wednesday and 
thursday. a warm front will then approach the lake by friday.


loz063>065-191500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
404 am edt sun apr 19 2026

.today...west winds 10 to 15 knots increasing to 15 to 20 knots.
rain and snow showers likely early, then a chance of rain showers
late this morning. waves 2 to 4 feet building to 3 to 5 feet. 
.tonight...west winds 15 to 20 knots becoming northwest. a chance
of rain showers early, then a chance of rain and snow showers
late in the evening. waves 3 to 6 feet. 
.monday...northwest winds 15 to 20 knots becoming west. waves
3 to 5 feet subsiding to 2 to 4 feet. 
.monday night...west winds 15 to 20 knots diminishing to 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...south winds 5 to 15 knots becoming southeast. waves
1 to 2 feet. 
.wednesday...northeast winds 10 knots or less becoming northwest.
waves 1 to 3 feet subsiding to 1 foot or less. 
.thursday...northwest winds 10 knots or less becoming east. waves
1 foot or less. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
439 am edt sun apr 19 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...
another cold front moves across the lake this afternoon and
evening before high pressure 30.40 inches moves overhead sunday 
night into monday. another cold front will cross the lake tuesday 
night or early wednesday before high pressure returns wednesday 
and thursday.


lez165>168-191415-
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-
439 am edt sun apr 19 2026

.today...west winds 15 to 20 knots. a slight chance of rain
showers late. waves 2 to 4 feet. 
.tonight...west winds 15 to 20 knots becoming northwest 10 to
15 knots. a chance of rain showers early, then a chance of rain
showers with a slight chance of snow showers late in the evening.
waves 2 to 4 feet. 
.monday...northwest winds 5 to 15 knots becoming west. waves 1 to
3 feet. 
.monday night...southwest winds 5 to 15 knots becoming south.
waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming west 10 to
15 knots. a chance of rain showers tuesday night. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.wednesday...northwest winds 10 knots or less becoming southeast.
waves 1 to 3 feet subsiding to 1 foot or less. 
.thursday...southeast winds 5 to 15 knots becoming south. waves
1 to 3 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
439 am edt sun apr 19 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...
another cold front moves across the lake this afternoon and
evening before high pressure 30.40 inches moves overhead sunday 
night into monday. another cold front will cross the lake tuesday 
night or early wednesday before high pressure returns wednesday 
and thursday.


lez061-169-191415-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
439 am edt sun apr 19 2026

.today...west winds 10 to 15 knots increasing to 15 to 20 knots.
a slight chance of rain showers late. waves 2 to 4 feet building
to 3 to 5 feet. 
.tonight...west winds 10 to 15 knots becoming northwest. a chance
of rain and snow showers in the evening, then a slight chance of
snow showers after midnight. waves 2 to 4 feet. 
.monday...northwest winds around 10 knots becoming west. waves
1 to 2 feet. 
.monday night...west winds 5 to 10 knots becoming south. waves
around 1 foot. 
.tuesday...south winds 5 to 15 knots becoming southwest. waves
1 to 2 feet. 
.wednesday...north winds 5 to 10 knots becoming light and
variable. waves 2 feet or less. 
.thursday...east winds 10 knots or less becoming southeast. waves
1 foot or less. 

$$