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open lake forecast for lake ontario
national weather service buffalo ny
402 pm 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 slide east from the great 
lakes and 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. high pressure over canada will start to expand south over 
the lake on thursday.


loz062-230300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt fri may 22 2026

.tonight...east winds 15 to 20 knots. waves 2 to 4 feet building
to 3 to 5 feet. 
.saturday...east winds 10 to 15 knots increasing to 15 to
25 knots. a chance of showers in the morning, then showers in the
afternoon. waves 3 to 5 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.saturday night...east winds to 30 knots diminishing to 15 to
25 knots. showers. waves 5 to 8 feet. waves occasionally around
10 feet. 
.sunday...east winds 15 to 20 knots becoming southeast 5 to
15 knots. showers in the morning, then a chance of showers in the
afternoon. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.sunday night...southeast winds 5 to 10 knots becoming light and
variable. a chance of showers in the evening, then showers likely
overnight. waves 2 feet or less. 
.monday...light and variable winds. showers likely during the
day. waves 1 foot or less. 
.tuesday...southwest winds 10 knots or less becoming west. waves
1 foot or less. 
.wednesday...northwest winds 5 to 10 knots becoming north. waves
1 foot or less. 

$$

fzus61 kbuf 222003
glflo 
expires:202605230300;;471979

open lake forecast for lake ontario
national weather service buffalo ny
402 pm 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 slide east from the great 
lakes and 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. high pressure over canada will start to expand south over 
the lake on thursday.


loz063>065-230300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt fri may 22 2026

.tonight...northeast winds 15 to 20 knots becoming east. waves
1 to 3 feet building to 2 to 4 feet. 
.saturday...east winds 15 to 20 knots becoming southeast. a
chance of showers late in the morning. showers in the afternoon.
waves 1 to 3 feet building to 3 to 5 feet. 
.saturday night...southeast winds 15 to 25 knots. showers. waves
3 to 6 feet building to 4 to 7 feet, then subsiding to 3 to
6 feet. waves occasionally around 9 feet. 
.sunday...southeast winds 15 to 25 knots. showers. waves 3 to
6 feet. 
.sunday night...southeast winds 15 to 20 knots becoming south
10 to 15 knots. showers likely overnight. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.monday...southwest winds 10 knots or less. showers likely during
the day. waves 2 feet or less. 
.tuesday...southwest winds 5 to 10 knots becoming west. waves
1 foot or less. 
.wednesday...northwest winds 5 to 10 knots becoming north. 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
403 pm edt fri may 22 2026


slz022-024-230300-
saint lawrence river from cape vincent to saint regis
403 pm edt fri may 22 2026

.tonight...northeast winds 5 to 15 knots becoming east. partly to
mostly cloudy. 
.saturday...east winds 10 knots or less becoming southeast.
partly sunny early, then becoming mostly cloudy. 
.saturday night...south winds 5 to 10 knots becoming southeast.
showers.
.sunday...southeast winds 5 to 10 knots. showers.
.sunday night...southeast winds 10 knots or less becoming south.
a chance of showers in the evening, then showers likely
overnight. 
.monday...southwest winds less than 10 knots. showers likely
during the day. 
.tuesday...southwest winds 10 knots or less becoming west. a
chance of showers tuesday night. 
.wednesday...northwest winds 10 knots or less becoming north.
becoming mainly clear. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
341 pm 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...
low pressure 29.90 inches moves northeastward into the western
basin of lake erie saturday with a weak cold front saturday night
into early sunday. high pressure 30.10 inches builds into the 
region late sunday through early next week.



lez061-169-230215-
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-
341 pm edt fri may 22 2026

.tonight...northeast winds 15 to 20 knots becoming east 10 to
15 knots. a slight chance of showers after midnight. a chance of
showers late. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...east winds 15 to 20 knots. showers early, then
showers with a slight chance of thunderstorms from late morning
on. waves 1 to 3 feet building to 2 to 4 feet. 
.saturday night...southeast winds 15 to 25 knots becoming south.
showers. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.sunday...south winds 5 to 15 knots becoming west less than
10 knots. showers likely in the morning. waves 1 to 3 feet
subsiding to 1 foot or less. 
.sunday night...light and variable winds. showers likely in the
evening, then a chance of showers overnight. waves 1 foot or
less. 
.monday...light and variable winds. waves 1 foot or less. 
.tuesday...light and variable winds. waves 1 foot or less. 
.wednesday...northwest winds 10 knots or less becoming northeast.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$