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open lake forecast for lake ontario
national weather service buffalo ny
330 am est sun jan 17 2021

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 29.4 inch surface low along the east coast 
will deepen to 29.0 inches as it lifts over northern new 
england this morning. this low will then deepen to 28.8 
inches through monday as it drifts slowly northward to labrador 
canada. a 30.3 inch high will then build across the southeastern 
states monday night and tuesday.

loz062-171600-
lake ontario open waters from the niagara river to hamlin beach-
330 am est sun jan 17 2021

.today...west winds to 30 knots diminishing to 15 to 25 knots. a
chance of snow showers. waves 7 to 11 feet subsiding to 4 to
7 feet. waves occasionally around 14 feet. 
.tonight...west winds 15 to 20 knots becoming northwest 10 to
15 knots. snow showers likely early, then a chance of snow
showers from late evening on. waves 3 to 6 feet subsiding to 1 to
3 feet. 
.monday...northwest winds 10 to 15 knots. a chance of snow
showers. waves 1 to 3 feet. 
.monday night...northwest winds 5 to 15 knots becoming west. a
chance of snow showers in the evening, then snow showers likely
overnight. waves 1 to 3 feet. 
.tuesday...west winds 15 to 25 knots. snow showers likely. waves
3 to 5 feet building to 5 to 8 feet. waves occasionally around
10 feet. 
.wednesday...northwest winds 15 to 20 knots becoming southwest
10 to 15 knots. a chance of snow showers during the day. waves
3 to 6 feet subsiding to 2 to 4 feet. 
.thursday...southwest winds 15 to 20 knots becoming west. snow
showers likely during the day, then a chance of snow showers
thursday night. waves 2 to 4 feet building to 3 to 5 feet. 

$$

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loz063>065-171600-
lake ontario open waters from hamlin beach to the saint lawrence
river-
330 am est sun jan 17 2021

.today...west winds to 30 knots. snow this morning, then snow
showers likely this afternoon. waves 9 to 13 feet subsiding to
7 to 11 feet. waves occasionally around 16 feet. 
.tonight...west winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. snow early, then snow showers
likely late in the evening. a chance of snow showers after
midnight. waves 5 to 8 feet subsiding to 2 to 4 feet. waves
occasionally around 10 feet. 
.monday...northwest winds 10 to 15 knots becoming west 15 to
20 knots. a chance of snow showers. waves 1 to 3 feet building to
2 to 4 feet. 
.monday night...northwest winds 15 to 20 knots diminishing to
5 to 15 knots. a chance of snow showers. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.tuesday...west winds 10 to 15 knots increasing to 15 to
25 knots. snow showers likely during the day, then snow tuesday
night. waves 2 feet or less building to 5 to 8 feet. waves
occasionally around 10 feet. 
.wednesday...northwest winds 15 to 25 knots becoming south and
diminishing to 10 to 15 knots. a chance of snow showers during
the day. waves 4 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 9 feet. 
.thursday...south winds 15 to 20 knots becoming west. snow
showers likely during the day, then a chance of snow showers
thursday night. waves 2 to 4 feet building to 3 to 5 feet. 

$$

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lez061-167>169-171515-
ripley to buffalo ny extending from 5nm 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-
412 am est sun jan 17 2021

.today...west winds 15 to 20 knots. a chance of snow showers this
morning, then snow showers likely this afternoon. waves 5 to
8 feet subsiding to 3 to 6 feet. waves occasionally around
10 feet. 
.tonight...west winds 15 to 20 knots diminishing to 10 to
15 knots. snow showers. waves 3 to 6 feet subsiding to 2 to
4 feet. 
.monday...west winds 10 to 15 knots increasing to 15 to 20 knots.
a chance of snow showers. waves 2 to 4 feet building to 3 to
5 feet. 
.monday night...west winds 15 to 25 knots. a chance of snow and
rain showers likely in the evening, then a chance of snow showers
overnight. waves 3 to 6 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.tuesday...west winds 20 to 25 knots. snow showers likely. waves
4 to 7 feet. waves occasionally around 9 feet. 
.wednesday...west winds 15 to 20 knots becoming southwest. a
chance of snow showers during the day. waves 3 to 6 feet. 
.thursday...southwest winds 15 to 20 knots becoming west. a
chance of rain and snow showers. waves 3 to 6 feet. 

$$