fzus61 kbuf 190203
glflo 
expires:202607190900;;207882

open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt sat jul 18 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 secondary cold front will cross lake ontario tonight. a 30.0 
inch area of high pressure will build across the great lakes 
from west to east sunday into monday, followed by a warm front 
crossing the lake monday night and another cold front tuesday 
night, with these fronts attached to a 29.4 inch area of low 
pressure near james bay. a secondary cold front will cross the 
lake wednesday, with a 30.1 inch high building across the lower 
great lakes region wednesday night through friday.


loz062-190900-
lake ontario open waters from the niagara river to hamlin beach-
1003 pm edt sat jul 18 2026

.overnight...northwest winds 15 to 20 knots becoming north.
patchy smoke. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.sunday...north winds 5 to 15 knots becoming west. patchy smoke
early. waves 1 to 3 feet subsiding to 1 foot or less. 
.sunday night...west winds 10 knots or less becoming northwest.
waves 1 foot or less. 
.monday...southwest winds 10 knots or less becoming south. waves
1 foot or less. 
.monday night...southeast winds 5 to 15 knots becoming south.
waves 2 feet or less. 
.tuesday...south winds 15 to 20 knots becoming west. showers with
a chance of thunderstorms. waves 2 to 4 feet. 
.wednesday...west winds 15 to 25 knots becoming northwest. a
chance of showers during the day. waves 3 to 6 feet building to
4 to 7 feet, then subsiding to 3 to 5 feet. waves occasionally
around 9 feet. 
.thursday...northwest winds 5 to 15 knots becoming southwest.
waves 1 to 3 feet subsiding to 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 190203
glflo 
expires:202607190900;;207883

open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt sat jul 18 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 secondary cold front will cross lake ontario tonight. a 30.0 
inch area of high pressure will build across the great lakes 
from west to east sunday into monday, followed by a warm front 
crossing the lake monday night and another cold front tuesday 
night, with these fronts attached to a 29.4 inch area of low 
pressure near james bay. a secondary cold front will cross the 
lake wednesday, with a 30.1 inch high building across the lower 
great lakes region wednesday night through friday.


loz063>065-190900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 pm edt sat jul 18 2026

.overnight...northwest winds 15 to 20 knots becoming north.
patchy smoke. waves 4 to 7 feet subsiding to 3 to 6 feet. waves
occasionally around 9 feet. 
.sunday...north winds 15 to 20 knots becoming west 5 to 15 knots.
patchy smoke early. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday night...west winds 5 to 15 knots. waves 1 to 3 feet. 
.monday...west winds 10 knots or less becoming southeast. waves
1 foot or less. 
.monday night...southeast winds 10 knots or less becoming south
and increasing to 15 to 20 knots overnight. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest. showers
with a chance of thunderstorms. waves 2 to 4 feet. 
.wednesday...west winds 15 to 25 knots. showers likely during the
day, then a chance of showers wednesday night. waves 3 to 6 feet
building to 5 to 8 feet, then subsiding to 3 to 6 feet. waves
occasionally around 10 feet. 
.thursday...northwest winds 5 to 15 knots becoming west. waves
2 to 4 feet subsiding to 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 182307
glflo 
expires:202607190915;;201711

open lake forecast for lake ontario
national weather service buffalo ny
707 pm edt sat jul 18 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 secondary cold front will cross lake ontario tonight. a 30.0 
inch area of high pressure will build across the great lakes 
from west to east sunday into monday, followed by a warm front 
crossing the lake monday night and another cold front tuesday 
night, with these fronts attached to a 29.4 inch area of low 
pressure near james bay. a secondary cold front will cross the 
lake wednesday, with a 30.1 inch high building across the lower 
great lakes region wednesday night through friday.


loz064-190915-
lake ontario open waters from sodus bay to mexico bay-
707 pm edt sat jul 18 2026

...severe thunderstorm watch 494 in effect until 9 pm edt this
evening...

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 182307
glflo 
expires:202607190915;;201710

open lake forecast for lake ontario
national weather service buffalo ny
707 pm edt sat jul 18 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 secondary cold front will cross lake ontario tonight. a 30.0 
inch area of high pressure will build across the great lakes 
from west to east sunday into monday, followed by a warm front 
crossing the lake monday night and another cold front tuesday 
night, with these fronts attached to a 29.4 inch area of low 
pressure near james bay. a secondary cold front will cross the 
lake wednesday, with a 30.1 inch high building across the lower 
great lakes region wednesday night through friday.


loz063-065-190915-
lake ontario open waters from hamlin beach to sodus bay-
lake ontario open waters from mexico bay to the saint lawrence
river-
707 pm edt sat jul 18 2026

.rest of tonight...west winds 15 to 20 knots becoming north. a
chance of showers early. waves 4 to 7 feet subsiding to 3 to
6 feet. waves occasionally around 9 feet. 
.sunday...north winds 15 to 20 knots becoming west 5 to 15 knots.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday night...west winds 5 to 15 knots. waves 1 to 3 feet. 
.monday...west winds 10 knots or less becoming southeast. waves
1 foot or less. 
.monday night...southeast winds 10 knots or less becoming south
and increasing to 15 to 20 knots overnight. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest. showers
with a chance of thunderstorms. waves 2 to 4 feet. 
.wednesday...west winds 15 to 25 knots becoming northwest.
showers likely during the day, then a chance of showers wednesday
night. waves 3 to 6 feet building to 5 to 8 feet, then subsiding
to 3 to 6 feet. waves occasionally around 10 feet. 
.thursday...northwest winds 5 to 15 knots becoming west. waves
2 to 4 feet subsiding to 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 190159
glfle 
expires:202607190815;;207671

open lake forecast for lake erie
national weather service cleveland oh
959 pm edt sat jul 18 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 30.00 inches will briefly enter the region sunday 
and monday. a warm front will lift into the region monday and will
be followed by another cold front on tuesday. a trough averaging 
29.80 inches will linger across the eastern great lakes on 
wednesday.


lez061-166>169-190815-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 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 sat jul 18 2026

.rest of tonight...north winds 15 to 20 knots. patchy smoke.
waves 3 to 5 feet. 
.sunday...north winds 5 to 15 knots becoming northwest. patchy
smoke. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday night...northwest winds 10 knots or less. patchy smoke in
the evening. waves 1 foot or less. 
.monday...southwest winds 10 knots or less. waves 1 foot or less.
.monday night...south winds 5 to 15 knots increasing to 15 to
20 knots. a chance of showers overnight. waves 1 foot or less
building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 25 knots becoming northwest.
showers with a chance of thunderstorms. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.wednesday...northwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.thursday...northwest winds 10 knots or less becoming south.
waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$