fzus61 kbuf 200202
glflo 
expires:202605200900;;322314

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt tue may 19 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...an 29.6 inch area of low pressure over western quebec 
this evening will swing a cold front across the lake late tonight. a 
large 30.4 inch area of surface high pressure will then build across 
the entire great lakes region wednesday afternoon through thursday, 
before sliding east off the new england coast late friday. this 
surface high will then strengthen to 30.6 inches as it anchors over 
atlantic canada through sunday.  a 29.9 inch low and attendant warm 
front will then slowly approach the lake later friday night and 
saturday, before weakening and sliding eastward sunday with the 
large area of high pressure over atlantic canada.


loz062-200900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt tue may 19 2026

.rest of tonight...southwest winds 15 to 20 knots becoming west.
showers with a chance of thunderstorms late this evening, then a
chance of showers after midnight. showers likely late. waves 3 to
5 feet. 
.wednesday...northwest winds 10 to 15 knots becoming west. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday night...northwest winds 10 to 15 knots becoming north.
waves 1 to 3 feet. 
.thursday...northeast winds 5 to 15 knots becoming southeast.
waves 2 feet or less. 
.thursday night...east winds 10 knots or less. waves 1 foot or
less. 
.friday...east winds 10 to 15 knots increasing to 15 to 20 knots.
showers likely friday night. waves 2 feet or less building to
2 to 4 feet. 
.saturday...east winds 15 to 25 knots. showers likely. waves 3 to
6 feet. 
.sunday...east winds 5 to 15 knots becoming southwest less than
10 knots. showers likely during the day, then a chance of showers
sunday night. waves 1 to 3 feet subsiding to 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 200202
glflo 
expires:202605200900;;322315

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt tue may 19 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...an 29.6 inch area of low pressure over western quebec 
this evening will swing a cold front across the lake late tonight. a 
large 30.4 inch area of surface high pressure will then build across 
the entire great lakes region wednesday afternoon through thursday, 
before sliding east off the new england coast late friday. this 
surface high will then strengthen to 30.6 inches as it anchors over 
atlantic canada through sunday.  a 29.9 inch low and attendant warm 
front will then slowly approach the lake later friday night and 
saturday, before weakening and sliding eastward sunday with the 
large area of high pressure over atlantic canada.


loz063>065-200900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt tue may 19 2026

.rest of tonight...southwest winds 15 to 20 knots becoming west.
showers likely with a chance of thunderstorms late this evening,
then showers likely after midnight. waves 2 to 4 feet. 
.wednesday...west winds 15 to 20 knots. a chance of showers
early. waves 2 to 4 feet building to 3 to 6 feet. 
.wednesday night...west winds 15 to 20 knots becoming north 10 to
15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.thursday...northeast winds 5 to 15 knots becoming west. waves
1 to 3 feet subsiding to 1 foot or less. 
.thursday night...west winds less than 10 knots. waves 1 foot or
less. 
.friday...east winds 5 to 15 knots increasing to 15 to 20 knots.
a chance of showers friday night. waves 1 to 3 feet. 
.saturday...east winds 15 to 20 knots becoming southeast. showers
likely. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.sunday...southeast winds 15 to 20 knots becoming south 10 to
15 knots. showers likely during the day, then a chance of showers
sunday night. waves 2 to 4 feet subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 200159
glfle 
expires:202605200815;;322095

open lake forecast for lake erie
national weather service cleveland oh
959 pm edt tue may 19 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 tracks southeast across lake erie tonight. pressure
rises wednesday and a ridge averaging 30.30 inches over the lake 
builds in for thursday. low pressure 30.00 inches moves in from 
the southwest over the western end of lake erie friday into 
saturday.


lez061-168-169-200815-
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-
959 pm edt tue may 19 2026

.rest of tonight...southwest winds 10 to 15 knots becoming west.
showers with a chance of thunderstorms late this evening, then
showers with a slight chance of thunderstorms after midnight.
waves 2 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots becoming west. a
chance of showers early. waves 1 to 3 feet. 
.wednesday night...northwest winds 10 to 15 knots becoming
northeast. waves 1 to 2 feet. 
.thursday...northeast winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.thursday night...northeast winds 15 to 20 knots becoming east.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...east winds 15 to 20 knots. a chance of showers during
the day, then showers friday night. waves 2 to 4 feet subsiding
to 1 to 3 feet. 
.saturday...east winds 15 to 20 knots becoming southeast 10 to
15 knots. showers with a chance of thunderstorms during the day,
then a chance of showers saturday night. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.sunday...south winds 10 knots or less becoming southwest. a
chance of showers and thunderstorms during the day, then a chance
of showers sunday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$