fzus61 kbuf 042009
glflo 
expires:202604050300;;835951

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt sat apr 4 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 29.4 inch surface low will track through the central 
great lakes this afternoon and evening before tracking into quebec 
tonight and sunday. with its track, a strong cold front will pass 
across the lake early tonight, with a secondary cold front then 
following sunday night and monday. a 30.5 inch high will then build 
across the great lakes tuesday and tuesday night, before sliding 
east and off the new england coast wednesday.


loz062-050300-
lake ontario open waters from the niagara river to hamlin beach-
409 pm edt sat apr 4 2026

.tonight...east winds 15 to 25 knots becoming southwest 15 to
20 knots. a chance of showers early, then showers with a chance
of thunderstorms. showers late. patchy fog after midnight. some
thunderstorms may produce gusty winds. waves 5 to 8 feet
subsiding to 3 to 6 feet. waves occasionally around 10 feet. 
.sunday...west winds 15 to 25 knots. waves 3 to 6 feet building
to 5 to 8 feet. waves occasionally around 10 feet. 
.sunday night...west winds 15 to 25 knots. waves 5 to 8 feet
subsiding to 3 to 6 feet. waves occasionally around 10 feet. 
.monday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of rain and snow showers in the afternoon.
waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday night...west winds 10 to 15 knots becoming northwest
15 to 20 knots. snow and rain showers. waves 1 to 3 feet building
to 3 to 5 feet. 
.tuesday...northwest winds 15 to 25 knots becoming west and
diminishing to 5 to 10 knots. snow showers during the day. waves
3 to 6 feet subsiding to 1 to 3 feet. 
.wednesday...south winds 5 to 10 knots increasing to 15 to
25 knots. waves 1 foot or less building to 3 to 6 feet. 
.thursday...southwest winds 15 to 25 knots becoming west. a
chance of showers. waves 4 to 7 feet subsiding to 3 to 6 feet.
waves occasionally around 9 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 042009
glflo 
expires:202604050300;;835952

open lake forecast for lake ontario
national weather service buffalo ny
409 pm edt sat apr 4 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 29.4 inch surface low will track through the central 
great lakes this afternoon and evening before tracking into quebec 
tonight and sunday. with its track, a strong cold front will pass 
across the lake early tonight, with a secondary cold front then 
following sunday night and monday. a 30.5 inch high will then build 
across the great lakes tuesday and tuesday night, before sliding 
east and off the new england coast wednesday.


loz063>065-050300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
409 pm edt sat apr 4 2026

.tonight...east winds 15 to 25 knots becoming southwest. a chance
of showers this evening, then showers after midnight. patchy fog
after midnight. waves 3 to 6 feet building to 5 to 8 feet. waves
occasionally around 10 feet. 
.sunday...west winds 15 to 25 knots increasing to 30 knots. rain
showers likely early. a chance of rain showers late. waves 3 to
6 feet building to 5 to 9 feet. waves occasionally around
11 feet. 
.sunday night...west winds 15 to 25 knots. a chance of rain
showers overnight. waves 6 to 9 feet. waves occasionally around
11 feet. 
.monday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of snow showers. waves 4 to 7 feet subsiding
to 1 to 3 feet. waves occasionally around 9 feet. 
.monday night...west winds 10 to 15 knots becoming north 15 to
20 knots. snow showers with rain showers likely. waves 1 to
3 feet building to 3 to 5 feet. 
.tuesday...north winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. snow showers during the day. waves
3 to 6 feet subsiding to 2 to 4 feet. 
.wednesday...southwest winds 5 to 10 knots becoming south and
increasing to 30 knots. waves 1 to 3 feet building to 5 to
8 feet. waves occasionally around 10 feet. 
.thursday...south winds to 30 knots becoming southwest 15 to
25 knots. a chance of rain showers. waves 5 to 8 feet subsiding
to 3 to 6 feet. waves occasionally around 10 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 042338
glfle 
expires:202604050815;;843877

open lake forecast for lake erie
national weather service cleveland oh
738 pm edt sat apr 4 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 continue to move east across the lake tonight. 
a trough averaging 30.00 inches will linger north of the lake 
sunday and sunday night before low pressure 29.90 inches moves 
east across the great lakes monday into tuesday. high pressure 
30.60 inches will build across the lake tuesday into wednesday.


lez061-050815-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
738 pm edt sat apr 4 2026

.rest of tonight...south winds 10 to 15 knots becoming southwest
15 to 20 knots. a chance of rain showers and thunderstorms early,
then rain showers with a slight chance of thunderstorms. a chance
of rain showers late. waves 1 to 3 feet building to 2 to 4 feet. 
.sunday...southwest winds 15 to 25 knots becoming west. a slight
chance of snow showers late. waves 3 to 6 feet. 
.sunday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 6 feet subsiding to 2 to 3 feet. 
.monday...west winds around 10 knots. a chance of snow showers in
the morning, then rain and snow showers likely in the afternoon.
waves 1 to 2 feet. 
.monday night...west winds 10 to 15 knots becoming northwest
15 to 20 knots. rain showers likely in the evening, then a chance
of rain and snow showers overnight. waves 2 to 3 feet. 
.tuesday...northwest winds 15 to 20 knots becoming light and
variable. waves 2 to 4 feet subsiding to 1 foot or less. 
.wednesday...southeast winds less than 10 knots becoming south
and increasing to 15 to 25 knots. waves 2 feet or less building
to 3 to 5 feet. 
.thursday...south winds 15 to 25 knots diminishing to 10 to
15 knots. a chance of showers. waves 3 to 5 feet subsiding to
1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 042338
glfle 
expires:202604050815;;843876

open lake forecast for lake erie
national weather service cleveland oh
738 pm edt sat apr 4 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 continue to move east across the lake tonight. 
a trough averaging 30.00 inches will linger north of the lake 
sunday and sunday night before low pressure 29.90 inches moves 
east across the great lakes monday into tuesday. high pressure 
30.60 inches will build across the lake tuesday into wednesday.


lez168-169-050815-
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-
738 pm edt sat apr 4 2026

...severe thunderstorm watch 97 in effect until 9 pm edt this
evening...

.rest of tonight...south winds 10 to 15 knots becoming west. rain
showers with a chance of thunderstorms this evening, then rain
showers after midnight. some thunderstorms may be severe with
damaging winds early. waves 1 to 3 feet building to 2 to 4 feet. 
.sunday...west winds 10 to 15 knots increasing to 15 to 25 knots.
a slight chance of rain showers late. waves 3 to 6 feet. 
.sunday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 3 feet. 
.monday...west winds around 10 knots. a chance of snow and rain
showers in the morning, then rain showers likely with a chance of
snow showers in the afternoon. waves 1 to 2 feet. 
.monday night...west winds 10 to 15 knots becoming northwest
15 to 20 knots. rain showers likely in the evening, then a chance
of rain and snow showers overnight. waves 2 to 4 feet building to
3 to 5 feet. 
.tuesday...northwest winds 15 to 20 knots becoming south and
diminishing to less than 10 knots. waves 3 to 5 feet subsiding to
1 foot or less. 
.wednesday...southeast winds 5 to 10 knots becoming south and
increasing to 15 to 25 knots. waves 2 feet or less building to
2 to 4 feet. 
.thursday...south winds 15 to 25 knots diminishing to 10 to
15 knots. a chance of showers. waves 3 to 5 feet subsiding to
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$