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open lake forecast for lake ontario
national weather service buffalo ny
330 am est thu dec 12 2019

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 30.7 inch high will slide just to the south of 
the lake today, and then move across new england and atlantic canada 
by friday. a 29.6 inch low will develop along the mid atlantic coast 
friday night and track into southern new england on saturday and 
across eastern canada sunday while deepening to 28.7 inches.


loz063>065-121600-
lake ontario open waters from hamlin beach to the saint lawrence
river-
330 am est thu dec 12 2019

.today...west winds 15 to 20 knots becoming south 10 to 15 knots.
scattered snow showers early. waves 5 to 8 feet subsiding to 1 to
3 feet. waves occasionally around 10 feet. 
.tonight...south winds 15 to 25 knots. waves 2 to 4 feet building
to 3 to 6 feet. 
.friday...south winds 15 to 25 knots. waves 3 to 6 feet subsiding
to 2 to 4 feet. 
.friday night...southeast winds 5 to 15 knots becoming east. a
chance of rain showers in the evening, then rain showers
overnight. waves 1 to 3 feet. 
.saturday...northeast winds 10 to 15 knots becoming west and
increasing to 15 to 25 knots. rain showers. waves 2 feet or less
building to 3 to 6 feet. 
.sunday...west winds 15 to 25 knots. rain showers likely with a
chance of snow showers during the day, then a chance of snow
showers sunday night. waves 5 to 9 feet subsiding to 4 to 7 feet.
waves occasionally around 11 feet. 
.monday...west winds 5 to 15 knots becoming east. a chance of
snow showers monday night. waves 3 to 5 feet subsiding to 1 to
3 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
331 am est thu dec 12 2019


slz022-024-121600-
saint lawrence river from cape vincent to saint regis
331 am est thu dec 12 2019

.today...southwest winds 5 to 10 knots becoming south. scattered
flurries early this afternoon. 
.tonight...south winds 5 to 15 knots. mostly cloudy. 
.friday...south winds 5 to 15 knots. mostly cloudy in the
morning, then becoming partly sunny. 
.friday night...southeast winds 10 knots or less becoming
northeast. a chance of rain showers in the evening, then rain
showers overnight. 
.saturday...northeast winds 10 knots or less becoming west. rain
showers during the day, then rain showers, snow showers with a
chance of freezing rain saturday night. 
.sunday...west winds 15 to 20 knots diminishing to 10 to
15 knots. snow and rain showers likely during the day, then a
chance of snow showers sunday night. 
.monday...west winds 5 to 10 knots becoming southeast. a chance
of snow showers monday night. 

$$