fzus61 kbuf 202003
glflo 
expires:202605210300;;362908

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt wed may 20 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 area of surface high pressure will 
build across the entire great lakes region through thursday, before 
sliding east off the new england coast late friday. this surface 
high will then strengthen to 30.6 inches as it anchors over atlantic 
canada through sunday. a 29.9 inch low and attendant warm front will 
then slowly approach the lake late friday night and saturday, before 
weakening and sliding eastward sunday. a 30.1 inch high will settle 
across the region monday through tuesday.


loz062-210300-
lake ontario open waters from the niagara river to hamlin beach-
403 pm edt wed may 20 2026

.tonight...northwest winds 10 to 15 knots becoming northeast
15 to 20 knots. waves 1 to 3 feet. 
.thursday...northeast winds 15 to 20 knots becoming southeast
5 to 15 knots. waves 2 to 4 feet subsiding to 1 to 2 feet. 
.thursday night...east winds 10 knots or less. waves 1 foot or
less. 
.friday...east winds 5 to 10 knots increasing to 15 to 20 knots.
waves 1 to 3 feet building to 2 to 4 feet. 
.friday night...east winds 15 to 20 knots. a chance of showers
overnight. waves 2 to 4 feet. 
.saturday...east winds 15 to 25 knots. showers. waves 5 to 8 feet
subsiding to 3 to 6 feet. waves occasionally around 10 feet. 
.sunday...southeast winds 5 to 15 knots becoming south. showers
likely during the day, then a chance of showers sunday night.
waves 2 to 4 feet subsiding to 2 feet or less. 
.monday...southwest winds 10 knots or less becoming west. a
chance of showers during the day. waves 1 foot or less. 

$$

fzus61 kbuf 202003
glflo 
expires:202605210300;;362909

open lake forecast for lake ontario
national weather service buffalo ny
403 pm edt wed may 20 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 area of surface high pressure will 
build across the entire great lakes region through thursday, before 
sliding east off the new england coast late friday. this surface 
high will then strengthen to 30.6 inches as it anchors over atlantic 
canada through sunday. a 29.9 inch low and attendant warm front will 
then slowly approach the lake late friday night and saturday, before 
weakening and sliding eastward sunday. a 30.1 inch high will settle 
across the region monday through tuesday.


loz063>065-210300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 pm edt wed may 20 2026

.tonight...west winds 15 to 25 knots becoming northeast. waves
3 to 6 feet. 
.thursday...northeast winds 15 to 20 knots becoming west 5 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.thursday night...northwest winds 10 knots or less becoming
northeast. waves 1 foot or less. 
.friday...east winds 5 to 15 knots becoming northeast. waves
2 feet or less. 
.friday night...northeast winds 10 to 15 knots becoming east. a
chance of showers overnight. waves 1 to 3 feet. 
.saturday...east winds 15 to 25 knots becoming southeast.
showers. waves 2 to 4 feet building to 3 to 6 feet. 
.sunday...southeast winds 15 to 25 knots becoming south and
diminishing to 10 to 15 knots. showers. waves 3 to 6 feet
subsiding to 1 to 3 feet. 
.monday...south winds 5 to 15 knots becoming west. showers likely
during the day. waves 2 feet or less. 

$$

fzus61 kcle 201959
glfle 
expires:202605210215;;362625

open lake forecast for lake erie
national weather service cleveland oh
359 pm edt wed may 20 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...
high pressure 30.40 inches builds across the great lakes region
tonight into thursday before shifting northeast on friday. low
pressure 30.00 inches will lift northeast towards lake erie on
friday before lifting a warm front on saturday. a cold front will
cross lake erie on sunday before high pressure 30.20 inches builds
overhead on monday.


lez164>168-210215-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
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-
359 pm edt wed may 20 2026

.tonight...north winds 10 to 15 knots becoming northeast 15 to
20 knots. waves 2 to 4 feet. 
.thursday...northeast winds 15 to 20 knots. waves 2 to 4 feet
building to 3 to 6 feet. 
.thursday night...northeast winds 15 to 20 knots becoming east.
waves 3 to 6 feet. 
.friday...east winds 15 to 20 knots. a chance of showers in the
afternoon. waves 3 to 6 feet. 
.friday night...east winds 15 to 20 knots. showers. waves 3 to
6 feet subsiding to 2 to 4 feet. 
.saturday...southeast winds 15 to 20 knots becoming south 10 to
15 knots. showers with a chance of thunderstorms during the day,
then a chance of showers saturday night. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.sunday...south winds 10 knots or less becoming southwest. a
chance of showers and thunderstorms during the day, then a chance
of showers sunday night. waves 2 feet or less. 
.monday...west winds less than 10 knots becoming east. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 201959
glfle 
expires:202605210215;;362626

open lake forecast for lake erie
national weather service cleveland oh
359 pm edt wed may 20 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...
high pressure 30.40 inches builds across the great lakes region
tonight into thursday before shifting northeast on friday. low
pressure 30.00 inches will lift northeast towards lake erie on
friday before lifting a warm front on saturday. a cold front will
cross lake erie on sunday before high pressure 30.20 inches builds
overhead on monday.


lez061-169-210215-
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-
359 pm edt wed may 20 2026

.tonight...northwest winds 5 to 15 knots becoming northeast.
waves 1 to 3 feet. 
.thursday...northeast winds 15 to 20 knots. waves 2 to 4 feet
building to 3 to 5 feet. 
.thursday night...northeast winds 15 to 20 knots becoming east.
waves 3 to 5 feet subsiding to 2 to 4 feet. 
.friday...east winds 15 to 20 knots becoming northeast. waves
2 to 4 feet building to 3 to 5 feet, then subsiding to 2 to
4 feet. 
.friday night...east winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers in the evening, then showers
overnight. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.saturday...east winds 15 to 20 knots becoming south. showers
with a chance of thunderstorms during the day, then showers
likely saturday night. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.sunday...south winds 10 knots or less. a chance of showers.
waves 2 feet or less. 
.monday...southwest winds less than 10 knots. waves 1 foot or
less. 

winds and waves higher in and near thunderstorms.

$$