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open lake forecast for lake ontario
national weather service buffalo ny
346 pm est mon jan 18 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 29.8 inch trough will be across the lake through 
tuesday. a 30.2 inch high will then build from the lower
mississippi valley to the lower great lakes on wednesday. a 29.3
inch low will then track across ontario and the upper great lakes
on thursday and then across the gulf of maine on friday.

loz062-190430-
lake ontario open waters from the niagara river to hamlin beach-
346 pm est mon jan 18 2021

.tonight...northwest winds 5 to 15 knots becoming west. a chance
of snow showers this evening, then lake effect snow showers
likely after midnight. waves 2 feet or less. 
.tuesday...southwest winds 15 to 25 knots becoming west. lake
effect snow showers likely early, then a chance of snow showers
from late morning on. waves 1 to 3 feet building to 5 to 8 feet.
waves occasionally around 10 feet. 
.tuesday night...west winds 20 to 25 knots. a chance of snow
showers. waves 5 to 8 feet. waves occasionally around 10 feet. 
.wednesday...northwest winds 15 to 20 knots becoming west. a
chance of snow showers. waves 4 to 7 feet subsiding to 2 to
4 feet. waves occasionally around 9 feet. 
.wednesday night...west winds 10 to 15 knots becoming southwest
15 to 20 knots. a chance of snow showers. waves 2 to 3 feet. 
.thursday...southwest winds 20 to 25 knots becoming west. a
chance of snow and rain showers. waves 3 to 5 feet building to
4 to 7 feet. waves occasionally around 9 feet. 
.friday...west winds 15 to 20 knots becoming northwest. rain and
snow showers likely during the day, then a chance of snow showers
friday night. waves 3 to 6 feet subsiding to 2 to 4 feet. 
.saturday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. a chance of snow showers during the day. waves 2 to
4 feet subsiding to 1 to 3 feet. 

$$

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loz063>065-190430-
lake ontario open waters from hamlin beach to the saint lawrence
river-
346 pm est mon jan 18 2021

.tonight...northwest winds 5 to 15 knots becoming west less than
10 knots. a chance of snow showers through the early overnight,
then lake effect snow showers likely late. waves 1 to 3 feet
subsiding to 1 foot or less. 
.tuesday...southwest winds 5 to 10 knots becoming west and
increasing to 15 to 25 knots. lake effect snow showers likely.
waves 1 foot or less building to 5 to 8 feet. waves occasionally
around 10 feet. 
.tuesday night...west winds 15 to 25 knots. lake effect snow
showers. waves 5 to 9 feet. waves occasionally around 11 feet. 
.wednesday...northwest winds 15 to 25 knots. snow showers likely
in the morning, then a chance of snow showers in the afternoon.
waves 5 to 8 feet subsiding to 3 to 6 feet. waves occasionally
around 10 feet. 
.wednesday night...west winds 15 to 20 knots becoming south. a
chance of snow showers in the evening, then snow showers likely
overnight. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.thursday...southwest winds 15 to 25 knots becoming west. snow
showers likely with a chance of rain showers during the day, then
lake effect snow with a chance of lake effect rain showers
thursday night. waves 3 to 5 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.friday...west winds 15 to 25 knots becoming northwest. lake
effect rain and snow showers during the day, then a chance of
snow showers friday night. waves 4 to 7 feet subsiding to 3 to
5 feet. waves occasionally around 9 feet. 
.saturday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. a chance of snow showers during the day. waves 3 to
5 feet subsiding to 2 to 4 feet. 

$$

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lez061-167>169-190330-
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-
402 pm est mon jan 18 2021

.tonight...west winds 15 to 25 knots. snow showers this evening,
then a chance of snow showers after midnight. waves 4 to 7 feet.
waves occasionally around 9 feet. 
.tuesday...west winds 15 to 25 knots. a chance of snow showers.
waves 5 to 8 feet. waves occasionally around 10 feet. 
.tuesday night...west winds 20 to 25 knots. a chance of snow
showers. waves 5 to 8 feet. waves occasionally around 10 feet. 
.wednesday...northwest winds 15 to 20 knots becoming west. a
chance of snow showers in the morning. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.wednesday night...southwest winds 15 to 25 knots increasing to
30 knots. waves 3 to 6 feet building to 6 to 9 feet. waves
occasionally around 11 feet. 
.thursday...southwest winds to 30 knots becoming west. a chance
of rain and snow showers during the day, then a chance of rain
showers thursday night. waves 6 to 10 feet subsiding to 5 to
7 feet. waves occasionally around 13 feet. 
.friday...west winds 15 to 20 knots becoming northwest. a chance
of snow showers. waves 3 to 6 feet. 
.saturday...northwest winds 15 to 20 knots becoming north 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 

$$