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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
647 am edt thu apr 9 2020


slz022-024-091515-
saint lawrence river from cape vincent to saint regis
647 am edt thu apr 9 2020

.today...variable winds under 10 knots becoming west and 
increasing to 15 to 20 knots this afternoon. rain showers. 
.tonight...west winds 15 to 20 knots. rain and snow showers
likely early, then snow showers likely after midnight. 
.friday...west winds 15 to 20 knots becoming northwest. snow and 
rain showers. 
.friday night...northwest winds 10 to 15 knots. a chance of snow 
and rain showers in the evening. 
.saturday...west winds 5 to 10 knots becoming southwest. partly
to mostly cloudy. 
.sunday...south winds 5 to 10 knots becoming southeast and
increasing to 15 to 20 knots. a chance of rain showers during the
day, then rain showers sunday night. 
.monday...southeast winds 15 to 25 knots becoming southwest. rain
showers. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
646 am edt thu apr 9 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 29.3 inch low will push a cold front across the lake this 
morning. the storm system will cross the st lawrence valley this 
afternoon before rapidly deepening to 28.8 inches off the coast of
maine this evening. the low will strengthen to 28.6 inches north 
of nova scotia late tonight and friday morning. the deep storm 
system will move away across the canadian maritimes friday night
while a 29.9 inch ridge will cross the upper great lakes. this 
ridge will cross the lake saturday and saturday night. a 29.4 inch
storm system over the lower mississippi valley on sunday will 
track west of the lake sunday night and monday while deepening to 
28.9 inches.


loz062-091530-
lake ontario open waters from the niagara river to hamlin beach-
646 am edt thu apr 9 2020

.today...north winds 15 to 25 knots becoming west. showers this 
morning, then just a chance of showers this afternoon. waves 2 
feet or less building to 4 to 7 feet. waves occasionally around 9 
feet. 
.tonight...west winds to 30 knots. a chance of rain and snow
showers early. a chance of rain and snow showers late. waves  
building to 8 to 11 feet. waves occasionally around 14 feet. 
.friday...west winds to 30 knots becoming northwest. a chance of
rain and snow showers. waves 8 to 12 feet. waves occasionally 
around 15 feet. 
.friday night...west winds 15 to 25 knots becoming northwest.
waves subsiding to 3 to 6 feet. waves occasionally 9 feet. 
.saturday...west winds 15 to 20 knots becoming south. a chance of
rain showers saturday night. waves 2 to 4 feet. 
.sunday...south winds 5 to 10 knots becoming southeast and
increasing to 15 to 20 knots. a chance of showers during the day,
then showers sunday night. waves 2 to 4 feet. 
.monday...southwest winds increasing to 30 knots. rain showers. 
waves building to 3 to 6 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
646 am edt thu apr 9 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 29.3 inch low will push a cold front across the lake this 
morning. the storm system will cross the st lawrence valley this 
afternoon before rapidly deepening to 28.8 inches off the coast of
maine this evening. the low will strengthen to 28.6 inches north 
of nova scotia late tonight and friday morning. the deep storm 
system will move away across the canadian maritimes friday night
while a 29.9 inch ridge will cross the upper great lakes. this 
ridge will cross the lake saturday and saturday night. a 29.4 inch
storm system over the lower mississippi valley on sunday will 
track west of the lake sunday night and monday while deepening to 
28.9 inches.


loz063>065-091530-
lake ontario open waters from hamlin beach to the saint lawrence
river-
646 am edt thu apr 9 2020

...gale warning in effect from late tonight through friday
afternoon...

.today...southeast winds 5 to 10 knots becoming west and
increasing to 30 knots this afternoon. showers through early
afternoon, then just a chance of showers late. waves 1 foot or 
less building to 7 to 10 feet. waves occasionally around 13 feet. 
.tonight...west winds to 30 knots increasing to 35 knot gales. snow
and rain showers likely. waves 7 to 11 feet building to 10 to 15 
feet. waves occasionally around 19 feet. 
.friday...west gales to 35 knots diminishing to 30 knots. snow
and rain showers likely. waves 10 to 15 feet. waves occasionally 
around 19 feet. 
.friday night...west winds to 30 knots becoming northwest. a 
chance of rain and snow showers. waves 6 to 10 feet. waves 
occasionally around 13 feet. 
.saturday...northwest winds 15 to 20 knots becoming southwest
10 to 15 knots. a chance of rain showers saturday night. waves 3 
to 5 feet. 
.sunday...south winds 5 to 10 knots becoming southeast and
increasing to 15 to 25 knots. a chance of rain showers during the
day, then rain showers sunday night. waves 2 to 4 feet. 
.monday...south winds 15 to 25 knots becoming west to 30 knots.
rain showers. waves building to 4 to 7 feet. waves occasionally 
around 9 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
404 am edt thu apr 9 2020

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 couple of secondary troughs averaging 29.70 inches will cross
the eastern lakes today and friday from low pressure deepening to
28.70 inches across new england. a ridge averaging 30.10 inches 
will extend north across the lake saturday. a warm front will lift
north to lake erie sunday. low pressure 29.20 inches will move 
east across lake erie monday morning and force a cold front east 
across the lake.


lez061-169-091430-
lake erie open waters from ripley to buffalo ny-
lake erie open waters from conneaut oh to ripley ny-
404 am edt thu apr 9 2020

.today...west winds 15 to 25 knots. rain showers likely. waves 1 
to 3 feet building to 3 to 6 feet. 
.tonight...west winds to 30 knots. rain showers likely through
the early overnight, then rain and snow showers likely late.
waves 5 to 9 feet. waves occasionally around 11 feet. 
.friday...northwest winds to 30 knots becoming west 15 to
25 knots. a chance of rain and snow showers in the morning, then
a chance of rain showers in the afternoon. waves 5 to 9 feet.
waves occasionally around 11 feet. 
.friday night...northwest winds 15 to 25 knots. waves 3 to 6 feet
subsiding to 2 to 3 feet. 
.saturday...west winds 5 to 15 knots becoming south. a chance of
rain showers saturday night. waves 1 to 3 feet. 
.sunday...south winds 10 to 15 knots becoming southeast. a chance
of showers during the day, then showers sunday night. waves 1 to
2 feet. 
.monday...southwest winds 15 to 20 knots becoming west. rain
showers likely during the day. waves 1 to 3 feet building to 3 to
6 feet. 

$$