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ON- Lake Ontario

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fzus61 kbuf 210520
glfsl 
772 

forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
120 am edt wed oct 21 2020

slz022-024-210930-
saint lawrence river from cape vincent to saint regis
120 am edt wed oct 21 2020

.overnight...northeast winds 5 to 15 knots. a chance of
rain showers late. 
.wednesday...east winds 5 to 10 knots becoming southwest and
increasing to 15 to 20 knots. showers with a chance of
thunderstorms. 
.wednesday night...southwest winds 10 knots or less. partly
cloudy. 
.thursday...light and variable winds. partly sunny. 
.thursday night...northeast winds 10 knots or less becoming
southeast. mostly cloudy. 
.friday...south winds 10 to 15 knots becoming southwest. showers
likely friday night. 
.saturday...northwest winds 5 to 10 knots becoming north. rain
showers likely during the day, then a chance of rain showers
saturday night. 
.sunday...north winds 10 knots or less becoming east. rain
showers likely sunday night. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kbuf 210520
glflo 
165 

open lake forecast for lake ontario
national weather service buffalo ny
120 am edt wed oct 21 2020

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 front will remain stalled south of the lake through
the overnight. a 29.8 inch low will then move from the central 
great lakes to southern quebec wednesday. this will propel a warm
front north across the lake early wednesday morning, followed by 
a cold front wednesday afternoon. a 30.3 inch high will then build
from the great lakes wednesday night to new england thursday. a 
cold front then moves east across the lake late friday night and 
early saturday before high pressure of 30.2 inches briefly slides 
over the lake on sunday.

loz062-210930-
lake ontario open waters from the niagara river to hamlin beach-
120 am edt wed oct 21 2020

.overnight...east winds 15 to 20 knots becoming southeast.
showers likely with a chance of thunderstorms late. waves 2 to
4 feet building to 3 to 5 feet. 
.wednesday...southeast winds 15 to 20 knots becoming west.
showers with a chance of thunderstorms through early afternoon,
then a chance of showers late. waves 2 to 4 feet building to 3 to
5 feet. 
.wednesday night...west winds 5 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.thursday...northwest winds 10 knots or less becoming east 10 to
15 knots. waves 2 feet or less. 
.thursday night...east winds 10 to 15 knots becoming south. waves
1 to 3 feet. 
.friday...south winds 10 to 15 knots becoming west. a chance of
showers during the day, then showers likely friday night. waves
1 to 3 feet. 
.saturday...northwest winds 10 to 15 knots becoming north.
showers likely during the day, then a chance of showers saturday
night. waves 1 to 3 feet. 
.sunday...northeast winds 10 to 15 knots becoming east. a chance
of showers during the day, then showers likely sunday night.
waves around 2 feet. 

winds and waves higher in and near thunderstorms.

$$
fzus61 kbuf 210520
glflo 

loz063>065-210930-
lake ontario open waters from hamlin beach to the saint lawrence
river-
120 am edt wed oct 21 2020

.overnight...east winds 15 to 20 knots becoming southeast.
a chance of showers late. waves 1 to 3 feet building to 2 to
4 feet. 
.wednesday...southeast winds 15 to 25 knots becoming west.
showers with a chance of thunderstorms. waves 2 to 4 feet
building to 3 to 6 feet. 
.wednesday night...west winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of showers in the evening. waves 3 to 6 feet
subsiding to 1 to 3 feet. 
.thursday...west winds 10 knots or less becoming east 10 to
15 knots. waves 2 feet or less. 
.thursday night...east winds 10 to 15 knots becoming south. waves
2 feet or less. 
.friday...south winds 15 to 20 knots becoming southwest. showers
likely friday night. waves 1 to 3 feet building to 3 to 5 feet,
then subsiding to 2 to 4 feet. 
.saturday...northwest winds 10 to 15 knots becoming north.
showers likely during the day, then a chance of showers saturday
night. waves 1 to 3 feet. 
.sunday...northeast winds 10 to 15 knots becoming east. showers
likely sunday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

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