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open lake forecast for lake ontario
national weather service buffalo ny
1027 pm edt thu apr 18 2024

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 30.1 inch surface high pressure will quickly cross the 
lake tonight. a wavy frontal boundary will move across the lake 
tomorrow. a 29.4 inch low over northern quebec friday night will 
continue to move away from the region on saturday...while an 
expansive 30.6 inch high will move from the canadian rockies to the 
northern plains. the large high will continue to push south to the 
lower mississippi valley by late sunday. the high will be centered 
over the ohio valley on monday. this high will slip to the east 
tuesday, while a 29.6 inch surface low deepens across the western 
great lakes, with a warm front extending towards the lake tuesday 
night.


loz062-190900-
lake ontario open waters from the niagara river to hamlin beach-
1027 pm edt thu apr 18 2024

.overnight...south winds 10 knots or less becoming
southeast. waves 2 feet or less. 
.friday...east winds 10 to 15 knots becoming west 15 to 20 knots.
a chance of showers early, then showers. a chance of showers
late. waves 1 to 3 feet building to 2 to 4 feet. 
.friday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 3 feet. 
.saturday...west winds 15 to 20 knots. waves 3 to 6 feet. 
.saturday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 6 feet. 
.sunday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet. 
.monday...west winds 5 to 10 knots becoming southwest. waves 1 to
3 feet. 
.tuesday...southwest winds 10 to 15 knots becoming northwest.
showers likely. waves 1 to 3 feet. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1027 pm edt thu apr 18 2024

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 30.1 inch surface high pressure will quickly cross the 
lake tonight. a wavy frontal boundary will move across the lake 
tomorrow. a 29.4 inch low over northern quebec friday night will 
continue to move away from the region on saturday...while an 
expansive 30.6 inch high will move from the canadian rockies to the 
northern plains. the large high will continue to push south to the 
lower mississippi valley by late sunday. the high will be centered 
over the ohio valley on monday. this high will slip to the east 
tuesday, while a 29.6 inch surface low deepens across the western 
great lakes, with a warm front extending towards the lake tuesday 
night.


loz063>065-190900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1027 pm edt thu apr 18 2024

.overnight...southeast winds 10 to 15 knots. waves 1 to
3 feet. 
.friday...southeast winds 15 to 20 knots becoming southwest. a
chance of showers late in the morning. showers in the afternoon.
waves 2 to 4 feet building to 3 to 6 feet. 
.friday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers in the evening. waves 3 to 6 feet
subsiding to 2 to 4 feet. 
.saturday...southwest winds 15 to 25 knots becoming west to
30 knots. a chance of showers in the afternoon. waves 2 to 4 feet
building to 5 to 8 feet. waves occasionally around 10 feet. 
.saturday night...west winds to 30 knots diminishing to 15 to
25 knots. waves 5 to 9 feet subsiding to 3 to 6 feet. waves
occasionally around 11 feet. 
.sunday...west winds 15 to 20 knots. waves 3 to 6 feet subsiding
to 2 to 4 feet. 
.monday...west winds 5 to 15 knots becoming south. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.tuesday...south winds 10 to 15 knots becoming west. rain showers
likely. waves 1 to 3 feet. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1027 pm edt thu apr 18 2024


slz022-024-190900-
saint lawrence river from cape vincent to saint regis
1027 pm edt thu apr 18 2024

.overnight...south winds 10 knots or less. cloudy.
.friday...south winds 5 to 15 knots increasing to 15 to 20 knots.
showers in the afternoon. 
.friday night...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. rain showers in the evening. 
.saturday...southwest winds 10 to 15 knots becoming west. a
chance of rain showers. 
.saturday night...west winds 5 to 15 knots becoming southwest. a
chance of rain showers in the evening. 
.sunday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. becoming mainly clear. 
.monday...west winds 5 to 10 knots becoming south. mainly clear,
then becoming partly cloudy. 
.tuesday...south winds 5 to 10 knots becoming west. a chance of
rain showers during the day, then rain showers likely tuesday
night. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
928 pm edt thu apr 18 2024

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...
low pressure of 29.80 inches will move northeast across lake erie
by friday morning, pulling a cold front east across the lake 
behind it through the day. a ridge averaging 30.10 inches will 
build in friday night and be followed by a reinforcing cold front 
on saturday. high pressure of 30.00 inches will build east through
the ohio valley sunday through monday. low pressure 29.70 inches 
will track east across the great lakes on tuesday north of lake 
erie.


lez061-168-169-190815-
ripley to buffalo ny extending from 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-
928 pm edt thu apr 18 2024

.overnight...southeast winds 5 to 15 knots becoming east. a
slight chance of showers late. waves 1 to 2 feet. 
.friday...southeast winds 10 to 15 knots becoming southwest 15 to
20 knots. showers in the morning, then a slight chance of showers
early in the afternoon. waves 1 to 3 feet building to 3 to
6 feet. 
.friday night...southwest winds 15 to 20 knots becoming west
10 to 15 knots. waves 3 to 5 feet subsiding to 2 to 3 feet. 
.saturday...west winds 10 to 15 knots increasing to 15 to
20 knots. waves 3 to 6 feet. 
.saturday night...west winds 5 to 15 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.sunday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.monday...north winds 5 to 15 knots becoming south. waves 2 feet
or less. 
.tuesday...south winds 10 to 15 knots becoming west and
increasing to 15 to 25 knots. showers likely. waves 1 to 3 feet
building to 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

$$