fzus61 kbuf 052002
glflo 
expires:202607060300;;472063

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun jul 5 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 30.2 inch surface will build southward across 
western quebec tonight, reaching northern new england tomorrow, then 
sliding east of the canadian maritimes by tuesday. meanwhile, a weak 
29.9 inch low over ohio this evening will move to the mid atlantic 
by late monday. a broad 30.1 inch high is then forecast to build 
across the great lakes tuesday through wednesday, then drift off the 
east coast thursday. a weak cold front will cross the lake thursday 
night before another 30.1 inch surface high pressure builds across 
the eastern great lakes region friday and saturday.


loz062-060300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt sun jul 5 2026

.tonight...northeast winds 5 to 15 knots. waves 1 to 2 feet. 
.monday...northeast winds 10 to 15 knots becoming east 15 to
20 knots. a chance of showers from late morning on. waves 2 to
3 feet. 
.monday night...east winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 3 feet. 
.tuesday...east winds 10 to 15 knots. waves 1 to 3 feet. 
.tuesday night...east winds 10 knots or less becoming south.
waves 2 feet or less. 
.wednesday...southwest winds 10 knots or less. waves 1 foot or
less. 
.thursday...southwest winds 5 to 15 knots becoming west. a chance
of showers during the day, then showers likely thursday night.
waves 1 to 2 feet. 
.friday...north winds 10 knots or less. a chance of showers.
waves 1 foot or less. 

$$

fzus61 kbuf 052002
glflo 
expires:202607060300;;472064

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun jul 5 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 30.2 inch surface will build southward across 
western quebec tonight, reaching northern new england tomorrow, then 
sliding east of the canadian maritimes by tuesday. meanwhile, a weak 
29.9 inch low over ohio this evening will move to the mid atlantic 
by late monday. a broad 30.1 inch high is then forecast to build 
across the great lakes tuesday through wednesday, then drift off the 
east coast thursday. a weak cold front will cross the lake thursday 
night before another 30.1 inch surface high pressure builds across 
the eastern great lakes region friday and saturday.


loz063>065-060300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt sun jul 5 2026

.tonight...northeast winds 5 to 15 knots. waves 1 to 3 feet. 
.monday...northeast winds 5 to 15 knots becoming east. a chance
of showers from late morning on. waves 2 feet or less. 
.monday night...east winds 10 to 15 knots. a chance of showers.
waves 1 to 3 feet. 
.tuesday...east winds 5 to 15 knots. a chance of showers in the
morning. waves 2 feet or less. 
.tuesday night...southeast winds 5 to 10 knots becoming south.
waves 1 foot or less. 
.wednesday...south winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots becoming west. a chance
of showers during the day, then showers likely thursday night.
waves 1 foot or less. 
.friday...north winds 5 to 10 knots. showers likely during the
day. waves 1 foot or less. 

$$

fzus61 kcle 052025
glfle 
expires:202607060230;;473587

open lake forecast for lake erie
national weather service cleveland oh
425 pm edt sun jul 5 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 south of lake erie will continue to move
slowly east through monday. a cold front will move through and the
low will open up into a trough, lasting through wednesday. weak
high pressure 30.00 inches will enter for thursday. a cold front
will cross the lake on friday.


lez061-168-169-060230-
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-
425 pm edt sun jul 5 2026

.tonight...northeast winds 10 to 15 knots. a chance of showers
with a slight chance of thunderstorms. waves 1 to 3 feet. 
.monday...northeast winds 10 to 15 knots. a chance of showers
with a slight chance of thunderstorms early, then showers likely
with a slight chance of thunderstorms late in the morning. a
chance of showers with a slight chance of thunderstorms in the
afternoon. waves 1 to 3 feet. 
.monday night...northeast winds 10 to 15 knots. a chance of
showers in the evening. waves 1 to 3 feet. 
.tuesday...northeast winds 5 to 10 knots. waves 1 to 2 feet. 
.tuesday night...northeast winds 10 knots or less becoming east.
waves 2 feet or less. 
.wednesday...southeast winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.thursday...southwest winds 5 to 15 knots becoming west. a chance
of showers and thunderstorms during the day, then showers likely
with a chance of thunderstorms thursday night. waves 2 feet or
less. 
.friday...northwest winds 5 to 10 knots becoming northeast. a
chance of showers. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$