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open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt fri may 22 2026

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 large 30.4 inch high will build across the great lakes 
today, before sliding east off the new england coast tonight. this 
high will strengthen to 30.6 inches as it anchors over atlantic 
canada through sunday. a 29.9 inch low and attendant warm front will 
then approach the lower great lakes late tonight and saturday, 
before weakening and sliding eastward sunday. a 30.1 inch high will 
settle across the region monday through tuesday. a cold front 
associated with a 29.8 inch low over new england will drop south 
across the lake on wednesday.


loz062-222100-
lake ontario open waters from the niagara river to hamlin beach-
1003 am edt fri may 22 2026

.this afternoon...east winds 15 to 20 knots. waves 2 to 4 feet. 
.tonight...east winds 15 to 20 knots. waves 2 to 4 feet. 
.saturday...east winds 15 to 25 knots. rain. waves 3 to 6 feet
building to 4 to 7 feet. waves occasionally around 9 feet. 
.saturday night...east winds 15 to 25 knots. rain in the evening,
then showers overnight. waves 5 to 8 feet. waves occasionally
around 10 feet. 
.sunday...southeast winds 15 to 20 knots becoming southwest and
diminishing to less than 10 knots. showers during the day, then a
chance of showers sunday night. waves 3 to 5 feet subsiding to
2 feet or less. 
.monday...light and variable winds. a chance of showers during
the day. waves 1 foot or less. 
.tuesday...west winds 10 knots or less. waves 1 foot or less. 

$$

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open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt fri may 22 2026

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 large 30.4 inch high will build across the great lakes 
today, before sliding east off the new england coast tonight. this 
high will strengthen to 30.6 inches as it anchors over atlantic 
canada through sunday. a 29.9 inch low and attendant warm front will 
then approach the lower great lakes late tonight and saturday, 
before weakening and sliding eastward sunday. a 30.1 inch high will 
settle across the region monday through tuesday. a cold front 
associated with a 29.8 inch low over new england will drop south 
across the lake on wednesday.


loz063>065-222100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 am edt fri may 22 2026

.this afternoon...northeast winds 10 to 15 knots. waves 1 to
3 feet. 
.tonight...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.saturday...southeast winds 10 to 15 knots increasing to 15 to
25 knots. rain. waves 1 to 3 feet building to 3 to 5 feet. 
.saturday night...southeast winds 15 to 25 knots. rain in the
evening, then showers overnight. waves 3 to 6 feet. 
.sunday...southeast winds 15 to 25 knots becoming south. showers
during the day, then a chance of showers sunday night. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.monday...southwest winds 10 knots or less. a chance of showers
during the day. waves 2 feet or less. 
.tuesday...southwest winds 10 knots or less becoming west. waves
1 foot or less. 

$$

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forecast for the saint lawrence river
including the thousand islands region
national weather service buffalo ny
1003 am edt fri may 22 2026


slz022-024-222100-
saint lawrence river from cape vincent to saint regis
1003 am edt fri may 22 2026

.this afternoon...northeast winds 5 to 10 knots. partly to mostly
sunny. 
.tonight...northeast winds 10 knots or less becoming east. partly
cloudy in the evening, then becoming mostly cloudy. 
.saturday...east winds 10 knots or less becoming southeast.
mostly cloudy. 
.saturday night...southeast winds 5 to 10 knots. showers.
.sunday...southeast winds 5 to 10 knots becoming south. showers
during the day, then a chance of showers sunday night. 
.monday...south winds less than 10 knots. a chance of showers
during the day. 
.tuesday...southwest winds 10 knots or less. partly cloudy. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
917 am edt fri may 22 2026

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 ridge averaging 30.20 inches resides over lake erie today. low 
pressure 29.90 inches moves into the ohio valley late friday night
into saturday morning and move northward through early sunday 
morning dragging a cold front across lake erie. high pressure 
30.10 inches builds into the region late sunday through early next
week.


lez061-169-222015-
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-
917 am edt fri may 22 2026

.this afternoon...northeast winds 15 to 20 knots. waves 3 to
5 feet. 
.tonight...northeast winds 15 to 20 knots becoming east. a slight
chance of showers after midnight. a chance of showers late. waves
3 to 5 feet subsiding to 1 to 3 feet. 
.saturday...east winds 15 to 20 knots. showers. waves 2 to
4 feet. 
.saturday night...southeast winds 15 to 20 knots becoming south.
showers. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...south winds 10 to 15 knots becoming light and variable.
a chance of showers sunday night. waves 2 feet or less. 
.monday...light and variable winds. waves 1 foot or less. 
.tuesday...light and variable winds. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$