fzus61 kbuf 230202
glflo 
expires:202608230900;;199155

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat aug 22 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 29.6 inch low should wobble northeastward from the 
central great lakes to southwestern quebec through monday. in 
response to the low's track, a warm front drifts northeastward 
across lake ontario tonight and then a cold front sweeps eastward 
across the lake overnight tonight through sunday. behind the cold 
front, a trough averaging 29.8 inches lingers over lake ontario 
through monday. on tuesday through wednesday, a ridge averaging 
30.1 inches builds from the western and central great lakes. the 
ridge should begin to exit eastward on thursday and allow a warm 
front to sweep northeastward across lake ontario.


loz062-230900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sat aug 22 2026

.overnight...south winds 10 to 15 knots. showers with a
chance of thunderstorms. waves 1 to 2 feet. 
.sunday...southwest winds 15 to 20 knots becoming west. a chance
of waterspouts. showers likely early, then a chance of showers
late in the morning. showers likely with a chance of
thunderstorms in the afternoon. waves 1 to 3 feet building to
3 to 6 feet. 
.sunday night...west winds 15 to 20 knots. a chance of
waterspouts. showers likely with a chance of thunderstorms in the
evening, then showers overnight. waves 4 to 6 feet. 
.monday...southwest winds 15 to 25 knots becoming west. a chance
of waterspouts. showers. waves 5 to 8 feet. waves occasionally
around 10 feet. 
.monday night...west winds 15 to 20 knots. a chance of
waterspouts. showers likely in the evening, then a chance of
showers overnight. waves 4 to 7 feet subsiding to 3 to 6 feet.
waves occasionally around 9 feet. 
.tuesday...west winds 15 to 20 knots diminishing to 10 knots or
less. a chance of waterspouts during the day. showers likely
during the day. waves 2 to 4 feet subsiding to 1 foot or less. 
.wednesday...southwest winds 10 knots or less becoming south.
waves 1 foot or less. 
.thursday...south winds 5 to 10 knots becoming southwest. a
chance of showers and thunderstorms. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 230202
glflo 
expires:202608230900;;199156

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sat aug 22 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 29.6 inch low should wobble northeastward from the 
central great lakes to southwestern quebec through monday. in 
response to the low's track, a warm front drifts northeastward 
across lake ontario tonight and then a cold front sweeps eastward 
across the lake overnight tonight through sunday. behind the cold 
front, a trough averaging 29.8 inches lingers over lake ontario 
through monday. on tuesday through wednesday, a ridge averaging 
30.1 inches builds from the western and central great lakes. the 
ridge should begin to exit eastward on thursday and allow a warm 
front to sweep northeastward across lake ontario.


loz063>065-230900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sat aug 22 2026

.overnight...south winds 15 to 25 knots. showers with a
chance of thunderstorms. waves 1 to 3 feet building to 3 to
5 feet. 
.sunday...south winds 15 to 25 knots becoming west. a chance of
waterspouts. showers with a chance of thunderstorms in the
morning, then a chance of showers and thunderstorms early in the
afternoon. showers with a chance of thunderstorms late. waves
3 to 5 feet building to 3 to 6 feet. 
.sunday night...west winds 15 to 20 knots becoming southwest. a
chance of waterspouts. showers with a chance of thunderstorms in
the evening, then showers overnight. waves 3 to 6 feet building
to 4 to 7 feet. waves occasionally around 9 feet. 
.monday...southwest winds 15 to 25 knots. a chance of
waterspouts. showers. waves 5 to 8 feet building to 6 to 9 feet.
waves occasionally around 11 feet. 
.monday night...west winds 15 to 20 knots. a chance of
waterspouts. showers. waves 5 to 9 feet subsiding to 3 to 6 feet.
waves occasionally around 11 feet. 
.tuesday...west winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of waterspouts. showers during the day, then a
chance of showers tuesday night. waves 3 to 6 feet subsiding to
1 to 3 feet. 
.wednesday...west winds 5 to 15 knots becoming south. waves
2 feet or less. 
.thursday...south winds 5 to 15 knots. a chance of showers during
the day, then showers likely thursday night. waves 2 feet or
less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 230140
glfle 
expires:202608230815;;198681

open lake forecast for lake erie
national weather service cleveland oh
940 pm edt sat aug 22 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 move east through the area late this evening. a
trough averaging 29.80 will linger over the eastern great lakes 
sunday into monday morning. high pressure 30.00 inches will 
gradually build into the region monday afternoon through tuesday 
before departing to the east on wednesday. low pressure 29.80 
inches moves across the northern great lakes wednesday into 
thursday.


lez061-166>169-230815-
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-
940 pm edt sat aug 22 2026

.rest of tonight...west winds 15 to 20 knots becoming northwest.
a chance of waterspouts. showers likely with a chance of
thunderstorms late this evening, then a chance of showers and
thunderstorms after midnight. waves 2 to 4 feet building to 3 to
5 feet. 
.sunday...northwest winds 15 to 20 knots becoming west. a chance
of waterspouts. a chance of showers with a slight chance of
thunderstorms through early afternoon, then a chance of showers
and thunderstorms late. waves 3 to 6 feet. 
.sunday night...west winds 15 to 25 knots. a chance of
waterspouts. showers likely with a chance of thunderstorms in the
evening, then a chance of showers overnight. waves 3 to 6 feet. 
.monday...west winds 15 to 25 knots. a chance of waterspouts. a
chance of showers. waves 4 to 7 feet. waves occasionally around
9 feet. 
.monday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of waterspouts in the evening. waves
3 to 6 feet subsiding to 1 to 3 feet. 
.tuesday...northwest winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.wednesday...south winds 5 to 15 knots. a chance of showers
wednesday night. waves 2 feet or less. 
.thursday...south winds 5 to 15 knots becoming west. a chance of
showers. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 230140
glfle 
expires:202608230815;;198679

open lake forecast for lake erie
national weather service cleveland oh
940 pm edt sat aug 22 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 move east through the area late this evening. a
trough averaging 29.80 will linger over the eastern great lakes 
sunday into monday morning. high pressure 30.00 inches will 
gradually build into the region monday afternoon through tuesday 
before departing to the east on wednesday. low pressure 29.80 
inches moves across the northern great lakes wednesday into 
thursday.


lez162-163-230815-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
940 pm edt sat aug 22 2026

.rest of tonight...northwest winds 15 to 20 knots. a chance of
waterspouts late this evening. a chance of showers and
thunderstorms late this evening. waves 1 to 3 feet. 
.sunday...northwest winds 15 to 20 knots becoming west. a chance
of waterspouts in the afternoon. a slight chance of showers early
in the afternoon. a chance of showers with a slight chance of
thunderstorms late. waves 2 to 4 feet. 
.sunday night...northwest winds 15 to 20 knots. a chance of
waterspouts in the evening. a chance of showers in the evening.
waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...northwest winds 15 to 20 knots becoming west. waves
1 to 3 feet. 
.monday night...west winds 5 to 15 knots becoming northwest.
waves 1 to 3 feet. 
.tuesday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.wednesday...southwest winds 5 to 10 knots. a chance of showers
wednesday night. waves 1 foot or less. 
.thursday...southwest winds 5 to 10 knots becoming northwest. a
chance of showers and thunderstorms during the day. waves 1 foot
or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 230140
glfle 
expires:202608230815;;198680

open lake forecast for lake erie
national weather service cleveland oh
940 pm edt sat aug 22 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 move east through the area late this evening. a
trough averaging 29.80 will linger over the eastern great lakes 
sunday into monday morning. high pressure 30.00 inches will 
gradually build into the region monday afternoon through tuesday 
before departing to the east on wednesday. low pressure 29.80 
inches moves across the northern great lakes wednesday into 
thursday.


lez164-165-230815-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
940 pm edt sat aug 22 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 230722
glflh 
expires:202608231530;;212685

open lake forecast for lake huron
national weather service detroit/pontiac mi
322 am edt sun aug 23 2026

for waters beyond five nautical miles off shore on lake huron

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...post-frontal northwest flow brings breezy conditions
through monday. chances for some rain showers and an isolated
thunderstorm will return this afternoon and evening, favored
across lake huron, high pressure, 30.10 inches, willl move over
the great lakes late tomorrow into tuesday.


lhz361-231530-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
322 am edt sun aug 23 2026

.today...northwest winds 20 to 25 knots with gusts to around
30 knots. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tonight...northwest winds 20 to 25 knots with gusts to around
30 knots. a chance of showers. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.monday...northwest winds 20 to 25 knots decreasing to 15 to
20 knots in the late morning and afternoon. gusts to 30 knots. a
chance of showers in the morning. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.monday night...northwest winds 15 to 20 knots decreasing to 5 to
10 knots. waves 3 to 5 feet subsiding to 1 to 3 feet after
midnight. 
.tuesday...northwest winds 5 to 10 knots becoming light and
variable...then becoming south 5 to 10 knots late in the evening.
waves 2 feet or less. 
.wednesday...south winds 5 to 10 knots becoming southeast 10 to
15 knots until early evening...then becoming south 5 to 10 knots
by midnight. a chance of showers early in the morning. a chance
of thunderstorms. rain showers . waves 1 to 3 feet. 
.thursday...southwest winds 10 to 15 knots veering to the
northwest . a chance of showers. waves 1 to 3 feet. 


$$

fzus63 kdtx 230722
glflh 
expires:202608231530;;212686

open lake forecast for lake huron
national weather service detroit/pontiac mi
322 am edt sun aug 23 2026

for waters beyond five nautical miles off shore on lake huron

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...post-frontal northwest flow brings breezy conditions
through monday. chances for some rain showers and an isolated
thunderstorm will return this afternoon and evening, favored
across lake huron, high pressure, 30.10 inches, willl move over
the great lakes late tomorrow into tuesday.


lhz362-363-231530-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
322 am edt sun aug 23 2026

.today...northwest winds 20 to 25 knots increasing to 30 knots in
the late morning and afternoon. a chance of waterspouts in the
morning. waves 8 to 12 feet. waves occasionally around 15 feet. 
.tonight...northwest winds to 30 knots. a chance of waterspouts
in the evening. a chance of showers in the evening...then showers
likely after midnight. waves 8 to 12 feet. waves occasionally
around 15 feet. 
.monday...northwest winds to 30 knots decreasing to 20 to
25 knots in the late morning and afternoon. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.monday night...northwest winds 15 to 20 knots with gusts to
around 30 knots decreasing to 10 to 15 knots after midnight.
waves 4 to 6 feet. 
.tuesday...northwest winds 5 to 10 knots becoming light and
variable...then becoming southeast 5 to 10 knots late in the
evening. waves 2 to 4 feet subsiding to 2 feet or less. waves
occasionally around 8 feet. 
.wednesday...south winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and early afternoon...then
increasing to 15 to 20 knots early in the evening decreasing to
10 to 15 knots by midnight. a chance of showers in the late
morning and early afternoon. rain showers likely. a chance of
thunderstorms by midnight. waves 1 to 3 feet building to 2 to
4 feet . 
.thursday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then becoming west 10 to 15 knots
by midnight. a chance of showers. waves 2 to 4 feet subsiding to
1 to 3 feet. 


$$

fzus63 kdtx 230722
glflh 
expires:202608231530;;212687

open lake forecast for lake huron
national weather service detroit/pontiac mi
322 am edt sun aug 23 2026

for waters beyond five nautical miles off shore on lake huron

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...post-frontal northwest flow brings breezy conditions
through monday. chances for some rain showers and an isolated
thunderstorm will return this afternoon and evening, favored
across lake huron, high pressure, 30.10 inches, willl move over
the great lakes late tomorrow into tuesday.


lhz462>464-231530-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
322 am edt sun aug 23 2026

.today...northwest winds 20 to 25 knots with gusts to around
30 knots. a chance of showers in the morning...then a chance of
showers and thunderstorms in the afternoon. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.tonight...northwest winds 15 to 20 knots increasing to 20 to
25 knots late in the evening...then decreasing to 15 to 20 knots
after midnight increasing to 20 to 25 knots early in the morning.
gusts to 30 knots. a chance of showers and thunderstorms in the
evening...then a chance of showers after midnight. waves 8 to
12 feet. waves occasionally around 15 feet. 
.monday...west winds 20 to 25 knots becoming northwest 15 to
20 knots early in the afternoon. gusts to 30 knots. a chance of
showers in the morning. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.monday night...northwest winds 10 to 15 knots. waves 4 to
6 feet. waves occasionally around 8 feet. 
.tuesday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then becoming light and variable
late in the afternoon becoming southeast 5 to 10 knots late in
the evening. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.wednesday...south winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and early afternoon...then
increasing to 15 to 20 knots early in the evening decreasing to
10 to 15 knots by midnight. showers likely and a chance of
thunderstorms . waves 1 to 3 feet building to 2 to 4 feet by
midnight. 
.thursday...south winds 10 to 15 knots becoming southwest 5 to
10 knots early in the evening...then veering to the northwest by
midnight. showers likely early in the morning...then a chance of
showers. waves 2 to 4 feet subsiding to 1 to 3 feet. 


$$

fzus63 kdtx 230719
glfsc 
expires:202608231530;;212633

lake st clair forecast
national weather service detroit/pontiac mi
319 am edt sun aug 23 2026

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...post-frontal northwest flow brings breezy conditions
through monday. chances for some showers and an isolated
thunderstorm will return this afternoon and evening, favored
across lake huron, high pressure, 30.10 inches, willl move over
the great lakes late tomorrow into tuesday.


lcz460-231530-
lake st clair-
319 am edt sun aug 23 2026

.today...northwest winds 15 to 20 knots. mostly sunny. a chance of
showers and thunderstorms late in the afternoon. waves 1 to 3 feet.
.tonight...northwest winds 15 to 20 knots. partly cloudy in the
evening then clearing. a chance of showers and thunderstorms early
in the evening. waves 1 to 3 feet.
.monday...west winds 15 to 20 knots. mostly sunny. waves 2 feet or
less.
.monday night...northwest winds 10 to 15 knots diminishing to 5 to
10 knots in the late evening and overnight. mostly clear. waves 2
feet or less.
.tuesday...northwest winds 5 to 10 knots in the morning becoming
light and variable...then becoming south 5 to 10 knots in the
evening. sunny in the morning becoming mostly clear. waves 2 feet or
less.
.wednesday...south winds 10 to 15 knots. mostly clear. a chance of
showers and thunderstorms. waves 2 feet or less.
.thursday...west winds 10 to 15 knots. partly cloudy. a chance of
showers and thunderstorms. waves 2 feet or less.

$$