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open lake forecast for lake ontario
national weather service buffalo ny
401 am edt thu may 22 2025

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 29.5 inch low will wobble about the lower great lakes 
region today, while a secondary 29.7 inch low develops along the mid 
atlantic coast. the coastal low will slide northeast to off the new 
england coast by friday morning, while deepening to 29.4 inches. the 
two areas of low pressure will then consolidate into a 29.6 inch low 
located near the maine coast friday. this low will slowly wobble 
east, with a trough extending back west across the lake this weekend.


loz062-221500-
lake ontario open waters from the niagara river to hamlin beach-
401 am edt thu may 22 2025

.today...east winds 15 to 25 knots. rain. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.tonight...east winds 15 to 20 knots diminishing to 10 to
15 knots. rain in the evening, then a chance of rain after
midnight. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.friday...east winds 10 to 15 knots becoming west. periods of
rain. waves 2 to 3 feet. 
.friday night...west winds 10 to 15 knots. periods of rain in the
evening, then a chance of showers overnight. waves around 2 feet.
.saturday...west winds 10 to 15 knots. a chance of showers. waves
1 to 2 feet. 
.sunday...west winds 5 to 10 knots becoming northwest. waves 1 to
2 feet. 
.monday...west winds 5 to 10 knots becoming northeast. waves
1 foot or less. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
401 am edt thu may 22 2025

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 29.5 inch low will wobble about the lower great lakes 
region today, while a secondary 29.7 inch low develops along the mid 
atlantic coast. the coastal low will slide northeast to off the new 
england coast by friday morning, while deepening to 29.4 inches. the 
two areas of low pressure will then consolidate into a 29.6 inch low 
located near the maine coast friday. this low will slowly wobble 
east, with a trough extending back west across the lake this weekend.


loz063>065-221500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
401 am edt thu may 22 2025

.today...southeast winds 15 to 20 knots becoming east. rain.
waves 4 to 7 feet subsiding to 3 to 6 feet. waves occasionally
around 9 feet. 
.tonight...east winds 15 to 20 knots diminishing to 10 to
15 knots. rain in the evening, then a chance of rain after
midnight. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday...east winds 5 to 15 knots becoming northwest. periods of
rain. waves 1 to 3 feet. 
.friday night...west winds 10 to 15 knots. periods of rain. waves
2 feet or less. 
.saturday...west winds 10 to 15 knots. a chance of showers. waves
1 to 3 feet. 
.sunday...west winds 5 to 15 knots. waves 1 to 3 feet. 
.monday...west winds 5 to 10 knots becoming southeast. waves
2 feet or less. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
401 am edt thu may 22 2025


slz022-024-221500-
saint lawrence river from cape vincent to saint regis
401 am edt thu may 22 2025

.today...east winds 5 to 10 knots. rain.
.tonight...east winds 10 knots or less becoming northeast. rain
likely in the evening, then a chance of rain after midnight. 
.friday...northeast winds 5 to 10 knots. a chance of showers in
the morning, then rain likely in the afternoon. 
.friday night...north winds less than 10 knots becoming
northwest. rain likely. 
.saturday...northwest winds 10 knots or less. showers likely. 
.sunday...northwest winds less than 10 knots. a chance of
showers. 
.monday...west winds less than 10 knots. partly cloudy. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
344 am edt thu may 22 2025

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 29.70 inches centered over lake erie will linger today 
before slow drifting east starting tonight. a surface trough 
averaging 29.90 inches on friday will persist through saturday 
before high pressure 30.30 inches builds south across the region 
saturday night into sunday. this high will remain over the region 
into the start of next week. 


lez061-169-221415-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
344 am edt thu may 22 2025

.today...southwest winds 10 to 15 knots increasing to 15 to
20 knots. rain likely. waves 2 to 4 feet building to 3 to 6 feet.
.tonight...west winds 15 to 25 knots. rain likely early, then a
chance of rain late in the evening. rain likely after midnight.
waves 4 to 7 feet. waves occasionally around 9 feet. 
.friday...west winds 15 to 20 knots. a chance of rain. waves 3 to
6 feet. 
.friday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of rain in the evening. waves 3 to
5 feet subsiding to 2 to 4 feet. 
.saturday...northwest winds 10 to 15 knots. waves 1 to 3 feet. 
.sunday...west winds 10 knots or less becoming northwest. waves
1 to 2 feet. 
.monday...north winds 10 knots or less becoming east. waves
2 feet or less. 

$$