fzus61 kbuf 212003
glflo 
expires:202604220300;;762097

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt tue apr 21 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 weak 29.4 inch low will cross the area tonight, and in 
the process drag an attendant cold front across the lake. a 30.1 
inch high will then build across the great lakes region wednesday 
and thursday. a warm front will approach the lake by friday. a 29.7 
inch low will move southwest of the lake on saturday, followed by a 
30.2 inch high building across the lake saturday night and sunday.


loz062-220300-
lake ontario open waters from the niagara river to hamlin beach-
403 pm edt tue apr 21 2026

.tonight...east winds 15 to 20 knots becoming south and
diminishing to 10 knots or less after midnight. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.wednesday...northeast winds less than 10 knots becoming
southwest. waves 1 foot or less. 
.wednesday night...west winds 10 knots or less becoming
northwest. waves 1 foot or less. 
.thursday...northwest winds less than 10 knots becoming
southwest. waves 1 foot or less. 
.thursday night...southwest winds 10 knots or less becoming
northeast 10 to 15 knots. waves 2 feet or less. 
.friday...east winds 10 to 15 knots increasing to 15 to 20 knots.
a chance of rain showers friday night. waves 1 to 3 feet building
to 3 to 6 feet. 
.saturday...east winds 15 to 25 knots diminishing to 10 to
15 knots. a chance of showers. waves 4 to 7 feet subsiding to
3 to 6 feet. waves occasionally around 9 feet. 
.sunday...east winds 5 to 15 knots. waves 1 to 3 feet. 

$$

fzus61 kbuf 212003
glflo 
expires:202604220300;;762098

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt tue apr 21 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 weak 29.4 inch low will cross the area tonight, and in 
the process drag an attendant cold front across the lake. a 30.1 
inch high will then build across the great lakes region wednesday 
and thursday. a warm front will approach the lake by friday. a 29.7 
inch low will move southwest of the lake on saturday, followed by a 
30.2 inch high building across the lake saturday night and sunday.


loz063>065-220300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 pm edt tue apr 21 2026

.tonight...southeast winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...southeast winds 5 to 15 knots becoming northwest
less than 10 knots. waves 2 feet or less. 
.wednesday night...west winds 10 knots or less becoming
northwest. waves 1 foot or less. 
.thursday...north winds 5 to 10 knots becoming west. waves 1 foot
or less. 
.thursday night...west winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.friday...northeast winds 5 to 15 knots becoming east 15 to
20 knots. a chance of rain showers friday night. waves 2 feet or
less building to 2 to 4 feet. 
.saturday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. a chance of rain showers. waves 3 to 5 feet subsiding
to 1 to 3 feet. 
.sunday...east winds 5 to 15 knots. waves 1 to 3 feet subsiding
to 1 foot or less. 

$$

fzus61 kcle 211938
glfle 
expires:202604220215;;761299

open lake forecast for lake erie
national weather service cleveland oh
338 pm edt tue apr 21 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 cold front will push south across lake erie tonight into wednesday 
morning before high pressure 30.10 inches builds overhead from the 
north through thursday. low pressure 29.70 inches will move east 
across the upper great lakes on thursday and will lift a warm front 
across the lake thursday into friday. the low will then extend a 
cold front east across the lower great lakes friday into saturday. 


lez165>168-220215-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
338 pm edt tue apr 21 2026

.tonight...south winds 5 to 15 knots becoming west. a slight
chance of showers and thunderstorms early, then a chance of
showers with a slight chance of thunderstorms. a slight chance of
showers late. waves 1 to 3 feet. 
.wednesday...west winds 5 to 10 knots. waves 2 feet or less. 
.wednesday night...southwest winds less than 10 knots becoming
northeast. waves 1 foot or less. 
.thursday...east winds 10 knots or less becoming northeast. waves
1 foot or less. 
.thursday night...east winds 5 to 10 knots. waves 1 foot or less.
.friday...east winds 15 to 20 knots becoming northeast 10 to
15 knots. a chance of showers during the day, then showers likely
friday night. waves 1 to 3 feet. 
.saturday...northeast winds 10 to 15 knots. a chance of showers
during the day. waves 1 to 2 feet. 
.sunday...northeast winds 5 to 15 knots becoming east. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 211938
glfle 
expires:202604220215;;761300

open lake forecast for lake erie
national weather service cleveland oh
338 pm edt tue apr 21 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 cold front will push south across lake erie tonight into wednesday 
morning before high pressure 30.10 inches builds overhead from the 
north through thursday. low pressure 29.70 inches will move east 
across the upper great lakes on thursday and will lift a warm front 
across the lake thursday into friday. the low will then extend a 
cold front east across the lower great lakes friday into saturday. 


lez061-169-220215-
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-
338 pm edt tue apr 21 2026

.tonight...south winds 5 to 10 knots becoming southwest. a chance
of showers through the early overnight, then a slight chance of
showers late. waves 2 feet or less. 
.wednesday...west winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.wednesday night...southwest winds 5 to 10 knots becoming light
and variable. waves 1 foot or less. 
.thursday...light and variable winds. waves 1 foot or less. 
.thursday night...east winds less than 10 knots becoming
northeast. waves 1 foot or less. 
.friday...northeast winds 5 to 10 knots. showers likely friday
night. waves 2 feet or less. 
.saturday...northeast winds 5 to 10 knots. a chance of showers
during the day. waves 2 feet or less. 
.sunday...northeast winds 10 knots or less becoming east. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$