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open lake forecast for lake ontario
national weather service buffalo ny
637 am edt tue apr 7 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...
high pressure of 30.0 over the lake will give way to low pressure
of 29.4 inches approaching from lower michigan by this evening.
this low passes south of the lake tonight then exits the east 
coast on wednesday while a very weak surface high crosses the 
lake. a strong cold front will cross the lake thursday morning as
a deepening 29.1 inch low crosses the ottawa valley. the storm 
system will move to the canadian maritimes thursday night and 
friday. the nose of a 30.0 inch high over the southeast states 
will cross the lake saturday.


loz062-071515-
lake ontario open waters from the niagara river to hamlin beach-
637 am edt tue apr 7 2020

.today...southwest winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.tonight...southwest winds 5 to 15 knots becoming east. a chance
of rain early, then rain likely from late evening on. waves
2 feet or less building to 2 to 3 feet. 
.wednesday...east winds 5 to 15 knots becoming southwest 10 knots
or less. rain likely in the morning, then a chance of rain in the
afternoon. waves 1 to 3 feet. 
.wednesday night...southwest winds 10 knots or less becoming
south. showers overnight. waves 1 foot or less. 
.thursday...west winds 15 to 25 knots. rain showers during the
day, then a chance of rain showers thursday night. waves 2 to
4 feet building to 5 to 8 feet. waves occasionally around
10 feet. 
.friday...west winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. a chance of rain showers during
the day. waves 5 to 8 feet subsiding to 2 to 4 feet. waves
occasionally around 10 feet. 
.saturday...west winds 5 to 15 knots becoming southwest. a chance
of rain showers saturday night. waves 1 to 3 feet. 

$$
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open lake forecast for lake ontario
national weather service buffalo ny
637 am edt tue apr 7 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...
high pressure of 30.0 over the lake will give way to low pressure
of 29.4 inches approaching from lower michigan by this evening.
this low passes south of the lake tonight then exits the east 
coast on wednesday while a very weak surface high crosses the 
lake. a strong cold front will cross the lake thursday morning as
a deepening 29.1 inch low crosses the ottawa valley. the storm 
system will move to the canadian maritimes thursday night and 
friday. the nose of a 30.0 inch high over the southeast states 
will cross the lake saturday.


loz063>065-071515-
lake ontario open waters from hamlin beach to the saint lawrence
river-
637 am edt tue apr 7 2020

.today...west winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.tonight...southwest winds 5 to 15 knots becoming northeast 15 to
20 knots. a chance of rain in the evening, then rain likely after
midnight. waves 1 to 3 feet. 
.wednesday...east winds 15 to 20 knots becoming west 5 to
15 knots. a chance of rain. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.wednesday night...west winds 10 knots or less becoming southeast
10 to 15 knots. rain showers likely overnight. waves 2 feet or
less. 
.thursday...south winds 15 to 20 knots becoming west and
increasing to 30 knots. rain showers. waves 2 to 4 feet building
to 6 to 9 feet. waves occasionally around 11 feet. 
.friday...west winds 15 to 25 knots becoming northwest. rain and
snow showers likely during the day. waves 6 to 9 feet subsiding
to 3 to 5 feet. waves occasionally around 11 feet. 
.saturday...west winds 5 to 15 knots becoming southwest. waves
2 to 4 feet subsiding to 1 to 2 feet. 

$$
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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
637 am edt tue apr 7 2020


slz022-024-071515-
saint lawrence river from cape vincent to saint regis
637 am edt tue apr 7 2020

.today...west winds 10 knots or less becoming northwest 10 to
15 knots. mostly sunny. 
.tonight...west winds 10 knots or less becoming northeast. a
chance of rain late in the evening. rain likely after midnight,
then a chance of rain late. 
.wednesday...northeast winds 10 knots or less becoming north. a
chance of rain. 
.wednesday night...light and variable winds. a chance of rain and
snow showers overnight. 
.thursday...southeast winds 10 to 15 knots becoming west. rain
showers during the day, then rain and snow showers thursday
night. 
.friday...west winds 5 to 15 knots becoming northwest. rain and
snow showers likely during the day. 
.saturday...west winds 10 knots or less becoming southwest.
partly to mostly cloudy. 

$$
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open lake forecast for lake erie
national weather service cleveland oh
343 am edt tue apr 7 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 warm front across northern ohio will drift northeast onto the
lake and stall this afternoon. low pressure 29.50 inches will 
move east across lake erie tonight along the front. a cold front 
trailing the low will cross the lakes tuesday night. another low 
29.30 inches will move east across the lakes wednesday night and 
drag a strong cold front east across lake erie. behind the front, 
a trough averaging 29.70 inches should linger over lake erie 
thursday through friday. a ridge averaging 30.10 inches will 
extend north across the lake saturday.


lez061-165>169-071415-
lake erie open waters from ripley to buffalo ny-
lake erie open waters from vermilion to avon point oh-
lake erie open waters from avon point to willowick oh-
lake erie open waters from willowick to geneva-on-the-lake oh-
lake erie open waters from geneva-on-the-lake to conneaut oh-
lake erie open waters from conneaut oh to ripley ny-
343 am edt tue apr 7 2020

.today...southeast winds 10 knots or less becoming east. a chance
of rain showers with a slight chance of thunderstorms. waves
1 foot or less. 
.tonight...east winds 10 knots or less becoming west 10 to
15 knots. a chance of showers and thunderstorms early, then
thunderstorms with showers likely. a chance of showers and
thunderstorms late. waves 2 feet or less. 
.wednesday...west winds 5 to 15 knots. a chance of showers in the
morning. waves 1 to 3 feet. 
.wednesday night...southwest winds 5 to 10 knots increasing to
15 to 20 knots. a chance of rain showers in the evening, then
rain showers overnight. waves 1 to 3 feet. 
.thursday...west winds 15 to 25 knots. a chance of rain showers.
waves 3 to 6 feet building to 4 to 7 feet. waves occasionally
around 9 feet. 
.friday...west winds 15 to 25 knots diminishing to 10 to
15 knots. a chance of rain showers during the day. waves 4 to
7 feet subsiding to 1 to 3 feet. waves occasionally around
9 feet. 
.saturday...west winds 5 to 10 knots becoming south. a chance of
rain showers saturday night. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

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