fzus61 kbuf 190202
glflo 
expires:202608190900;;965727

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt tue aug 18 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 ridge of high pressure averaging 30.0 inches will 
drift to the eastern seaboard tonight. a cold front will then move 
east across lake ontario on wednesday. behind the front, a ridge of 
high pressure averaging 30.1 inches builds from the upper great 
lakes thursday to the lower great lakes friday. this high will drift 
east to the canadian maritimes saturday as a 29.7 inch low moves 
into northwest ontario province.


loz062-190900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt tue aug 18 2026

.overnight...southwest winds 15 to 20 knots diminishing to
10 to 15 knots. a chance of showers. waves 1 to
2 feet. 
.wednesday...west winds 5 to 15 knots. showers likely in the
morning, then a chance of showers early in the afternoon. waves
2 feet or less. 
.wednesday night...northwest winds 5 to 10 knots. waves 1 foot or
less. 
.thursday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.thursday night...northwest winds 10 knots or less becoming
northeast. waves 1 foot or less. 
.friday...east winds 10 knots or less becoming southeast. waves
1 foot or less. 
.saturday...south winds 5 to 10 knots becoming southwest. showers
likely with a chance of thunderstorms. waves 2 feet or less. 
.sunday...west winds 10 to 15 knots becoming northwest 15 to
20 knots. showers likely during the day, then a chance of showers
sunday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 190202
glflo 
expires:202608190900;;965728

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt tue aug 18 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 ridge of high pressure averaging 30.0 inches will 
drift to the eastern seaboard tonight. a cold front will then move 
east across lake ontario on wednesday. behind the front, a ridge of 
high pressure averaging 30.1 inches builds from the upper great 
lakes thursday to the lower great lakes friday. this high will drift 
east to the canadian maritimes saturday as a 29.7 inch low moves 
into northwest ontario province.


loz063>065-190900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt tue aug 18 2026

.overnight...southwest winds 10 to 15 knots. waves 2 feet
or less. 
.wednesday...southwest winds 10 to 15 knots becoming west. a
chance of showers early, then showers likely. a chance of showers
late. waves 1 to 3 feet. 
.wednesday night...west winds 5 to 10 knots becoming northwest.
waves 1 to 2 feet. 
.thursday...northwest winds 5 to 10 knots becoming west. waves
1 foot or less. 
.thursday night...west winds 10 knots or less becoming north.
waves 1 foot or less. 
.friday...east winds 10 knots or less becoming southeast. waves
1 foot or less. 
.saturday...south winds 5 to 15 knots. a chance of showers and
thunderstorms during the day, then showers with a chance of
thunderstorms saturday night. waves 2 feet or less. 
.sunday...southwest winds 10 to 15 knots becoming northwest 15 to
20 knots. showers with a chance of thunderstorms. waves 1 to
3 feet building to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 190152
glfle 
expires:202608190815;;965480

open lake forecast for lake erie
national weather service cleveland oh
952 pm edt tue aug 18 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 sweep across lake erie on wednesday with high 
pressure 30.10 inches building into the region thursday through 
friday. low pressure 29.90 inches moves into the great lake on 
saturday with a cold front crossing late saturday into sunday.


lez061-168-169-190815-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
952 pm edt tue aug 18 2026

.overnight...southwest winds 10 to 15 knots. a slight
chance of showers late. waves 1 to 3 feet building to 2 to
4 feet. 
.wednesday...southwest winds 10 to 15 knots becoming west.
showers likely in the morning, then a chance of showers with a
slight chance of thunderstorms in the afternoon. waves 2 to
4 feet. 
.wednesday night...west winds 5 to 10 knots becoming northeast.
waves 1 to 2 feet. 
.thursday...northeast winds 10 knots or less. waves 1 foot or
less. 
.thursday night...northeast winds less than 10 knots becoming
southeast. waves 1 foot or less. 
.friday...southeast winds 10 knots or less becoming south. waves
1 foot or less. 
.saturday...south winds 5 to 15 knots becoming west. showers with
a chance of thunderstorms. waves 2 feet or less. 
.sunday...west winds 10 to 15 knots becoming northwest. showers
likely during the day, then a chance of showers sunday night.
waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$