fzus61 kbuf 232002
glflo 
expires:202608240300;;241753

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun aug 23 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 cold front continues to sweep eastward across lake 
ontario this evening. behind the 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. on friday, a cold front should sweep eastward across the 
lake and be followed by a high pressure ridge averaging 30.0 inches 
and building from the upper midwest.


loz062-240300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt sun aug 23 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 232002
glflo 
expires:202608240300;;241754

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt sun aug 23 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 cold front continues to sweep eastward across lake 
ontario this evening. behind the 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. on friday, a cold front should sweep eastward across the 
lake and be followed by a high pressure ridge averaging 30.0 inches 
and building from the upper midwest.


loz063>065-240300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt sun aug 23 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 231947
glfle 
expires:202608240230;;241296

open lake forecast for lake erie
national weather service cleveland oh
347 pm edt sun aug 23 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 trough averaging 29.80 will linger over the eastern great lakes 
through monday, followed by high pressure 30.00 inches monday 
night into wednesday. low pressure 29.80 inches will extend a cold
front east across the area late wednesday into thursday. high 
pressure 30.10 will return across the area on friday.


lez164-165-240230-
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-
347 pm edt sun aug 23 2026

.tonight...west winds 15 to 20 knots becoming northwest. a chance
of waterspouts this evening. showers likely with a chance of
thunderstorms early, then a chance of showers and thunderstorms
late this evening. waves 2 to 4 feet. 
.monday...west winds 15 to 20 knots. waves 3 to 6 feet. 
.monday night...west winds 15 to 20 knots becoming northwest 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 2 feet. 
.tuesday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.tuesday night...southwest winds 10 knots or less becoming south.
waves 1 foot or less. 
.wednesday...south winds 5 to 15 knots becoming southwest. a
chance of showers wednesday night. waves 2 feet or less. 
.thursday...southwest winds 5 to 15 knots becoming northwest. a
chance of showers and thunderstorms during the day. waves 2 feet
or less. 
.friday...northwest winds 5 to 10 knots becoming northeast. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 231947
glfle 
expires:202608240230;;241297

open lake forecast for lake erie
national weather service cleveland oh
347 pm edt sun aug 23 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 trough averaging 29.80 will linger over the eastern great lakes 
through monday, followed by high pressure 30.00 inches monday 
night into wednesday. low pressure 29.80 inches will extend a cold
front east across the area late wednesday into thursday. high 
pressure 30.10 will return across the area on friday.


lez061-166>169-240230-
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-
347 pm edt sun aug 23 2026

.tonight...northwest winds 15 to 25 knots becoming west. a chance
of waterspouts. showers with a chance of thunderstorms this
evening, then a chance of showers with a slight chance of
thunderstorms after midnight. a slight chance of showers late.
waves 3 to 5 feet subsiding to 2 to 4 feet. 
.monday...west winds 15 to 25 knots. a chance of waterspouts. a
chance of showers early, then showers likely late in the morning.
a chance of showers in the afternoon. waves 3 to 5 feet building
to 5 to 8 feet. waves occasionally around 10 feet. 
.monday night...west winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. a chance of waterspouts. waves
3 to 6 feet subsiding to 1 to 3 feet. 
.tuesday...northwest winds 5 to 15 knots becoming west. waves
1 to 3 feet subsiding to 1 foot or less. 
.tuesday night...west winds 5 to 10 knots becoming south. waves
1 foot or less. 
.wednesday...south winds 5 to 15 knots increasing to 15 to
20 knots. a chance of showers wednesday night. waves 1 to 3 feet.
.thursday...southwest winds 15 to 20 knots becoming west 5 to
15 knots. a chance of showers. waves 1 to 3 feet. 
.friday...northwest winds 5 to 15 knots becoming northeast. waves
1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 231947
glfle 
expires:202608240230;;241295

open lake forecast for lake erie
national weather service cleveland oh
347 pm edt sun aug 23 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 trough averaging 29.80 will linger over the eastern great lakes 
through monday, followed by high pressure 30.00 inches monday 
night into wednesday. low pressure 29.80 inches will extend a cold
front east across the area late wednesday into thursday. high 
pressure 30.10 will return across the area on friday.


lez162-163-240230-
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-
347 pm edt sun aug 23 2026

.tonight...west winds 15 to 20 knots becoming northwest. a chance
of waterspouts early. a slight chance of showers and
thunderstorms early. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...west winds 15 to 20 knots. waves 2 to 4 feet subsiding
to 1 to 3 feet. 
.monday night...west winds 10 to 15 knots becoming north. waves
1 to 3 feet. 
.tuesday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.tuesday night...south winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.wednesday...southwest winds 5 to 15 knots. a chance of showers
and thunderstorms wednesday night. waves 2 feet or less. 
.thursday...southwest winds 5 to 15 knots becoming northwest.
waves 2 feet or less. 
.friday...northwest winds 10 knots or less becoming northeast.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 231938
glflh 
expires:202608240345;;241033

open lake forecast for lake huron
national weather service detroit/pontiac mi
338 pm 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 evening and overnight, favored
across lake huron, high pressure, 30.10 inches, will move over
the great lakes late tomorrow into tuesday.


lhz361-240345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
338 pm edt sun aug 23 2026

.tonight...northwest winds 20 to 25 knots with gusts to 35 knot
gales. a chance of showers. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.monday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots with gusts to around
30 knots in the afternoon. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.monday night...northwest winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 4 to 6 feet subsiding to 2 to
4 feet after midnight. waves occasionally around 8 feet. 
.tuesday...northwest winds 5 to 10 knots until late afternoon
becoming light and variable. waves 2 feet or less. 
.tuesday night...light and variable winds becoming south 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.wednesday...south winds 10 to 15 knots becoming southeast 5 to
10 knots late in the afternoon...then veering to the south late
in the evening. showers and a chance of thunderstorms. waves 1 to
3 feet building to 3 to 5 feet late in the afternoon. 
.thursday...west winds 10 to 15 knots increasing to 15 to
20 knots early in the evening...then becoming northwest 10 to
15 knots by midnight. a chance of showers early in the morning.
waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning
and early afternoon...then building to 2 to 4 feet . 
.friday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 231938
glfsc 
expires:202608240345;;241081

lake st clair forecast
national weather service detroit/pontiac mi
338 pm 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 evening and overnight, favored
across lake huron, high pressure, 30.10 inches, will move over
the great lakes late tomorrow into tuesday.


lcz460-240345-
lake st clair-
338 pm edt sun aug 23 2026

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

$$

fzus63 kdtx 231938
glflh 
expires:202608240345;;241034

open lake forecast for lake huron
national weather service detroit/pontiac mi
338 pm 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 evening and overnight, favored
across lake huron, high pressure, 30.10 inches, will move over
the great lakes late tomorrow into tuesday.


lhz362-363-240345-
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-
338 pm edt sun aug 23 2026

.tonight...northwest winds 20 to 25 knots with gusts to 35 knot
gales. a chance of waterspouts in the evening. a chance of
showers in the evening...then showers likely after midnight.
waves 10 to 14 feet. waves occasionally around 18 feet. 
.monday...northwest winds 20 to 25 knots with gusts to around
30 knots. a chance of showers in the morning. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.monday night...northwest winds 15 to 20 knots decreasing to
10 to 15 knots in the late evening and overnight. waves 6 to
9 feet subsiding to 4 to 6 feet after midnight. waves
occasionally around 12 feet. 
.tuesday...northwest winds 5 to 10 knots until late afternoon
becoming light and variable. waves 2 to 4 feet subsiding to 1 to
3 feet in the late morning and afternoon. 
.tuesday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots after midnight. waves 2 feet or less. 
.wednesday...south winds 10 to 15 knots with gusts to around
30 knots increasing to 15 to 20 knots with gusts to around
30 knots late in the afternoon...then decreasing to 10 to
15 knots late in the evening. a chance of showers. a chance of
thunderstorms late in the afternoon. waves 1 to 3 feet building
to 3 to 5 feet. 
.thursday...southwest winds 10 to 15 knots becoming west 5 to
10 knots in the late morning and early afternoon...then becoming
northwest 10 to 15 knots . waves 2 to 4 feet. 
.friday...northwest winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet . 


$$

fzus63 kdtx 231938
glflh 
expires:202608240345;;241035

open lake forecast for lake huron
national weather service detroit/pontiac mi
338 pm 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 evening and overnight, favored
across lake huron, high pressure, 30.10 inches, will move over
the great lakes late tomorrow into tuesday.


lhz462>464-240345-
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-
338 pm edt sun aug 23 2026

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


$$