fzus61 kbuf 122002
glflo 
expires:202605130300;;452572

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt tue may 12 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 30.3 inch high draped from the carolinas to new york 
state will settle off the mid-atlantic coast this evening. a 29.6 
inch low over the central great lakes tonight will move to a little 
north of lake ontario by wednesday evening, then weaken into a 
trough over eastern new york and new england thursday. a 30.1 inch 
high will then build from the central great lakes and ohio valley 
thursday night to the lower great lakes and mid atlantic friday, 
then off the carolina coast saturday. a 29.2 inch low over the 
central plains will then push its warm front into the lower lakes 
region on sunday.


loz062-130300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt tue may 12 2026

.tonight...east winds 5 to 10 knots becoming southeast and
increasing to 15 to 20 knots. a chance of showers early, then
showers from late evening on. waves 1 to 3 feet. 
.wednesday...south winds 15 to 20 knots becoming southwest.
showers early, then a chance of showers. waves 2 to 4 feet. 
.wednesday night...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 2 to 4 feet. 
.thursday...west winds 5 to 15 knots becoming northwest. waves
1 to 2 feet. 
.thursday night...northwest winds 5 to 10 knots. waves around
1 foot. 
.friday...west winds 5 to 15 knots becoming southwest. waves
2 feet or less. 
.saturday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.sunday...west winds 5 to 10 knots becoming east. waves 2 feet or
less. 

$$

fzus61 kbuf 122002
glflo 
expires:202605130300;;452573

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt tue may 12 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 30.3 inch high draped from the carolinas to new york 
state will settle off the mid-atlantic coast this evening. a 29.6 
inch low over the central great lakes tonight will move to a little 
north of lake ontario by wednesday evening, then weaken into a 
trough over eastern new york and new england thursday. a 30.1 inch 
high will then build from the central great lakes and ohio valley 
thursday night to the lower great lakes and mid atlantic friday, 
then off the carolina coast saturday. a 29.2 inch low over the 
central plains will then push its warm front into the lower lakes 
region on sunday.


loz063>065-130300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt tue may 12 2026

.tonight...east winds 5 to 15 knots becoming southeast 15 to
20 knots. a chance of rain showers late this evening. rain
showers after midnight. waves 1 to 3 feet. 
.wednesday...southeast winds 15 to 25 knots becoming southwest.
showers in the morning, then showers likely in the afternoon.
waves 3 to 5 feet subsiding to 2 to 4 feet. 
.wednesday night...southwest winds 5 to 15 knots. a chance of
showers. waves 1 to 3 feet. 
.thursday...southwest winds 5 to 10 knots becoming northwest.
waves 2 feet or less. 
.thursday night...northwest winds 5 to 10 knots. waves 2 feet or
less. 
.friday...northwest winds 5 to 10 knots becoming southwest. waves
2 feet or less. 
.saturday...south winds 10 to 15 knots becoming west. a chance of
showers. waves 1 to 3 feet building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.sunday...west winds 5 to 15 knots becoming southeast. waves 1 to
3 feet subsiding to 1 foot or less. 

$$

fzus61 kcle 121943
glfle 
expires:202605130215;;452179

open lake forecast for lake erie
national weather service cleveland oh
343 pm edt tue may 12 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 warm front will cross the lake today. low pressure 29.60 inches
will move southeast across the great lakes tonight into wednesday.
this low will extend a cold front across the lake by wednesday
night. a trough averaging 29.90 inches will remain across the lake
on thursday. high pressure 30.10 inches will move through the
region thursday night into friday. a warm front will move across
the lake on friday night into saturday.


lez061-168-169-130215-
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-
343 pm edt tue may 12 2026

.tonight...east winds 5 to 10 knots becoming south and increasing
to 15 to 20 knots. a slight chance of showers this evening, then
showers with a slight chance of thunderstorms after midnight.
waves 1 foot or less building to 2 to 4 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west.
showers early, then a chance of showers with a slight chance of
thunderstorms late in the morning. a slight chance of showers and
thunderstorms early in the afternoon. waves 3 to 5 feet building
to 4 to 7 feet. waves occasionally around 9 feet. 
.wednesday night...west winds 10 to 15 knots increasing to 15 to
20 knots. a chance of showers. waves 3 to 5 feet subsiding to
2 to 4 feet. 
.thursday...northwest winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers in the morning. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.thursday night...northwest winds 5 to 15 knots. waves 1 to
3 feet. 
.friday...west winds 10 knots or less becoming south 10 to
15 knots. waves 2 feet or less. 
.saturday...southwest winds 5 to 15 knots becoming west. waves
1 to 3 feet. 
.sunday...southeast winds 10 knots or less. a chance of showers
sunday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$