fzus61 kbuf 310203
glflo 
expires:202607310900;;363929

open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt thu jul 30 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 trough averaging 29.6 inches exits eastward while a ridge 
averaging 30.0 inches builds from the western great lakes through 
tonight. the ridge exits slowly eastward friday through saturday 
before a cold front sweeps eastward across lake ontario on sunday. 
in the wake of the front, a 30.0 inch high builds over the western 
great lakes builds southeast across the lower great lakes region 
for monday and tuesday.


loz062-310900-
lake ontario open waters from the niagara river to hamlin beach-
1003 pm edt thu jul 30 2026

.overnight...northwest winds 5 to 10 knots becoming west.
waves 1 foot or less. 
.friday...west winds 10 knots or less becoming southwest. waves
1 foot or less. 
.friday night...south winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.saturday...southwest winds 10 knots or less becoming east. waves
1 foot or less. 
.saturday night...northeast winds 5 to 10 knots becoming east. a
chance of showers in the evening, then showers overnight. waves
1 foot or less. 
.sunday...southeast winds 10 knots or less becoming northeast.
showers with a chance of thunderstorms. waves 1 foot or less. 
.monday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...east winds 5 to 10 knots becoming southeast. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 310203
glflo 
expires:202607310900;;363930

open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt thu jul 30 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 trough averaging 29.6 inches exits eastward while a ridge 
averaging 30.0 inches builds from the western great lakes through 
tonight. the ridge exits slowly eastward friday through saturday 
before a cold front sweeps eastward across lake ontario on sunday. 
in the wake of the front, a 30.0 inch high builds over the western 
great lakes builds southeast across the lower great lakes region 
for monday and tuesday.


loz063>065-310900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 pm edt thu jul 30 2026

.overnight...west winds 5 to 10 knots. waves 1 foot or
less. 
.friday...west winds 5 to 10 knots. waves 1 foot or less. 
.friday night...southwest winds 10 knots or less becoming south.
waves 1 foot or less. 
.saturday...south winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.saturday night...east winds 10 knots or less becoming southeast.
a chance of showers in the evening, then showers likely
overnight. waves 1 foot or less. 
.sunday...south winds 5 to 15 knots becoming north. showers with
a chance of thunderstorms. waves 2 feet or less. 
.monday...north winds 5 to 15 knots. waves 2 feet or less. 
.tuesday...southeast winds 10 knots or less becoming south. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 310128
glfle 
expires:202607310815;;363189

open lake forecast for lake erie
national weather service cleveland oh
928 pm edt thu jul 30 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 30.10 inches will remain over the region through 
friday. low pressure 29.60 inches will enter from the west on 
saturday and slowly pass south of the lake through sunday. high 
pressure 30.00 inches will build back into the great lakes region 
on monday.


lez061-168-169-310815-
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-
928 pm edt thu jul 30 2026

.overnight...west winds 10 knots or less. waves 1 foot or
less. 
.friday...southwest winds less than 10 knots becoming west. waves
1 foot or less. 
.friday night...light and variable winds becoming south 5 to
10 knots. waves 1 foot or less. 
.saturday...south winds 10 knots or less becoming east. waves
1 foot or less. 
.saturday night...east winds 5 to 10 knots becoming southeast.
showers. waves 1 foot or less. 
.sunday...southeast winds 5 to 15 knots becoming northeast.
showers likely with a chance of thunderstorms during the day,
then a chance of showers and thunderstorms sunday night. waves
2 feet or less. 
.monday...northeast winds 5 to 15 knots becoming east. waves
2 feet or less. 
.tuesday...east winds 5 to 10 knots becoming south. waves 1 foot
or less. 

winds and waves higher in and near thunderstorms.

$$