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open lake forecast for lake ontario
national weather service buffalo ny
601 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 29.7 inch low over southern quebec will move to the 
saint lawrence valley this evening, then to the canadian maritimes 
by friday morning...with a 30.0 inch high then building across the 
lower great lakes friday, and new england friday night. a 29.4 inch 
low near lake superior friday evening will move to james bay and 
deepen to 29.0 inches saturday, while pushing a trailing strong cold 
front across the lake later saturday and saturday evening. a 30.4 
inch high will then settle southeastward across the great lakes 
sunday through monday night, before sliding off the mid-atlantic 
coast tuesday.


loz062-170315-
lake ontario open waters from the niagara river to hamlin beach-
601 pm edt thu apr 16 2026

.tonight...west winds 5 to 15 knots becoming northwest. showers
likely early, then a chance of showers. areas of fog from late
evening on. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...northwest winds 10 knots or less becoming south. patchy
fog early. waves 1 foot or less. 
.friday night...southeast winds 10 knots or less becoming east.
waves 1 foot or less. 
.saturday...southeast winds 5 to 15 knots becoming southwest
15 to 20 knots. a chance of showers in the morning, then showers
in the afternoon. waves 1 to 3 feet building to 2 to 4 feet. 
.saturday night...southwest winds 15 to 20 knots becoming west.
rain showers. waves 2 to 4 feet building to 3 to 5 feet. 
.sunday...west winds 15 to 25 knots becoming northwest. a chance
of rain showers during the day. waves 3 to 6 feet. 
.monday...northwest winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 3 to 6 feet subsiding to 1 to 2 feet. 
.tuesday...south winds 15 to 20 knots becoming west. waves 2 to
4 feet building to 3 to 5 feet. 

$$

fzus61 kbuf 162201
glflo 
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open lake forecast for lake ontario
national weather service buffalo ny
601 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 29.7 inch low over southern quebec will move to the 
saint lawrence valley this evening, then to the canadian maritimes 
by friday morning...with a 30.0 inch high then building across the 
lower great lakes friday, and new england friday night. a 29.4 inch 
low near lake superior friday evening will move to james bay and 
deepen to 29.0 inches saturday, while pushing a trailing strong cold 
front across the lake later saturday and saturday evening. a 30.4 
inch high will then settle southeastward across the great lakes 
sunday through monday night, before sliding off the mid-atlantic 
coast tuesday.


loz063>065-170315-
lake ontario open waters from hamlin beach to the saint lawrence
river-
601 pm edt thu apr 16 2026

.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. areas of fog 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. patchy fog
early. a chance of showers early. waves 2 feet or less. 
.friday night...west winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.saturday...southeast winds 10 to 15 knots becoming south 15 to
20 knots. showers likely in the afternoon. waves 1 to 3 feet
building to 2 to 4 feet. 
.saturday night...south winds 15 to 20 knots becoming west. rain
showers. waves 2 to 4 feet building to 3 to 6 feet. 
.sunday...west winds 15 to 25 knots becoming northwest. rain
showers likely with a chance of snow showers during the day, then
a chance of rain and snow showers sunday night. waves 3 to 6 feet
building to 5 to 9 feet. waves occasionally around 11 feet. 
.monday...northwest winds 15 to 25 knots becoming west. waves
5 to 8 feet subsiding to 3 to 6 feet. waves occasionally around
10 feet. 
.tuesday...south winds 15 to 20 knots becoming west. a chance of
rain showers tuesday night. waves 2 to 4 feet building to 3 to
5 feet. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
345 pm 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>169-170215-
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-
345 pm edt thu apr 16 2026

.tonight...southwest winds 10 knots or less becoming northwest. a
slight chance of showers and thunderstorms this evening, then a
slight chance of showers after midnight. waves 2 to 4 feet
subsiding to 1 to 3 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. a
chance of showers overnight. waves 1 to 3 feet. 
.saturday...south winds 15 to 20 knots becoming southwest.
showers in the morning, then showers with a chance of
thunderstorms in the afternoon. waves 2 to 4 feet building to
3 to 5 feet. 
.saturday night...southwest winds 15 to 20 knots becoming west.
rain showers in the evening, then a chance of rain showers
overnight. waves 2 to 4 feet. 
.sunday...west winds 15 to 20 knots becoming northwest. a chance
of rain showers during the day. waves 3 to 5 feet. 
.monday...northwest winds 15 to 20 knots becoming south. waves
3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming west. waves 2 to
4 feet building to 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$