fzus61 kbuf 111411
glflo 
expires:202604112100;;192639

open lake forecast for lake ontario
national weather service buffalo ny
1010 am edt sat apr 11 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 30.5 inch high over the central great lakes this 
morning will build east over the lower great lakes this afternoon 
and tonight, then drift east to new england sunday and off the coast 
sunday night. a 29.4 inch low will then move northeastward from the 
upper midwest sunday to near james bay sunday night, while pushing 
an attendant warm front across the lake on sunday. this low will 
strengthen to 29.2 inches while continuing to trek northeast into 
northern quebec monday, with a trailing cold front stalling near the 
lake monday through tuesday. a 29.5 inch surface low advancing 
through the upper great lakes wednesday will lift this frontal 
boundary northward into canada. this 29.5 inch low will continue 
northeast into central quebec on thursday while dragging an 
attendant cold front across the lake. a 30.2 inch high will then 
build over the lower great lakes thursday night and friday.


loz062-112100-
lake ontario open waters from the niagara river to hamlin beach-
1010 am edt sat apr 11 2026

.this afternoon...northwest winds 5 to 15 knots becoming
southwest. waves 2 feet or less. 
.tonight...southwest winds 10 knots or less becoming southeast.
waves 2 feet or less. 
.sunday...southeast winds 5 to 10 knots becoming east. a chance
of rain showers in the morning, then rain showers in the
afternoon. waves 2 feet or less. 
.sunday night...east winds 10 to 15 knots becoming southwest and
increasing to 15 to 25 knots. showers in the evening, then a
chance of showers overnight. waves 1 to 2 feet building to 3 to
6 feet. 
.monday...southwest winds 15 to 25 knots diminishing to 5 to
10 knots. showers during the day, then a chance of showers monday
night. waves 4 to 7 feet subsiding to 1 to 3 feet. waves
occasionally around 9 feet. 
.tuesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots. showers likely with a chance of thunderstorms. waves
1 to 3 feet. 
.wednesday...southwest winds 15 to 20 knots. showers likely with
a chance of thunderstorms. waves 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 111411
glflo 
expires:202604112100;;192640

open lake forecast for lake ontario
national weather service buffalo ny
1010 am edt sat apr 11 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 30.5 inch high over the central great lakes this 
morning will build east over the lower great lakes this afternoon 
and tonight, then drift east to new england sunday and off the coast 
sunday night. a 29.4 inch low will then move northeastward from the 
upper midwest sunday to near james bay sunday night, while pushing 
an attendant warm front across the lake on sunday. this low will 
strengthen to 29.2 inches while continuing to trek northeast into 
northern quebec monday, with a trailing cold front stalling near the 
lake monday through tuesday. a 29.5 inch surface low advancing 
through the upper great lakes wednesday will lift this frontal 
boundary northward into canada. this 29.5 inch low will continue 
northeast into central quebec on thursday while dragging an 
attendant cold front across the lake. a 30.2 inch high will then 
build over the lower great lakes thursday night and friday.


loz063>065-112100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1010 am edt sat apr 11 2026

.this afternoon...northwest winds 10 to 15 knots becoming west.
waves 1 to 3 feet. 
.tonight...west winds 5 to 15 knots becoming south less than
10 knots. waves 2 feet or less. 
.sunday...south winds 5 to 15 knots becoming southeast. a chance
of rain showers in the morning, then rain showers likely in the
afternoon. waves 2 feet or less. 
.sunday night...southeast winds 15 to 25 knots becoming south.
showers likely. waves 2 to 4 feet building to 3 to 6 feet. 
.monday...southwest winds 15 to 25 knots becoming west and
diminishing to 5 to 10 knots. showers. waves 3 to 6 feet building
to 4 to 7 feet, then subsiding to 2 to 4 feet. waves occasionally
around 9 feet. 
.tuesday...southeast winds 5 to 15 knots becoming southwest.
showers likely with a chance of thunderstorms. waves 1 to 3 feet.
.wednesday...southwest winds 15 to 20 knots. showers likely.
waves 1 to 3 feet building to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake erie
national weather service cleveland oh
952 am edt sat apr 11 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 30.50 inches over the central great lakes today will 
shift east tonight. this will allow a warm front to lift across 
the lake sunday afternoon with a cold front approaching lake erie 
from the northwest on monday. the cold front will stall to the 
north of lake erie tuesday and wednesday.


lez061-168-169-112030-
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 am edt sat apr 11 2026

.this afternoon...northwest winds less than 10 knots becoming
southwest. waves 1 foot or less. 
.tonight...southwest winds less than 10 knots. waves 1 foot or
less. 
.sunday...east winds 5 to 15 knots becoming southeast. a chance
of rain showers. waves 2 feet or less. 
.sunday night...south winds 15 to 20 knots becoming southwest. a
chance of showers overnight. waves 1 to 3 feet building to 2 to
4 feet. 
.monday...southwest winds 15 to 20 knots diminishing to 5 to
15 knots. showers likely during the day, then a chance of showers
monday night. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.tuesday...southwest winds 10 to 15 knots. a chance of showers
and thunderstorms during the day, then showers likely with a
chance of thunderstorms tuesday night. waves 1 to 3 feet. 
.wednesday...southwest winds 10 to 15 knots. showers likely
during the day, then a chance of showers wednesday night. waves
2 to 4 feet. 

winds and waves higher in and near thunderstorms.

$$