fzus61 kbuf 100203
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open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt sun aug 9 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 high pressure ridge averaging 30.3 inches begins to 
exit tonight. on the backside of the ridge, a warm front sweeps 
northeastward across lake ontario tonight into monday morning. a 
cold front then sweeps eastward across the lake monday evening. 
behind the cold front, a trough averaging 29.8 inches should linger 
over the eastern great lakes through thursday. by this friday, a 
high pressure ridge averaging 30.0 inches should build from the 
upper great lakes.


loz062-100900-
lake ontario open waters from the niagara river to hamlin beach-
1003 pm edt sun aug 9 2026

.overnight...south winds 5 to 10 knots becoming southwest.
showers likely with a chance of thunderstorms late. waves 1 foot
or less. 
.monday...southwest winds 10 to 15 knots becoming west. showers
with a chance of thunderstorms early, then a chance of showers
and thunderstorms from late morning on. waves 2 feet or less. 
.monday night...west winds 10 to 15 knots. waves 1 to 2 feet. 
.tuesday...west winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.tuesday night...west winds 10 knots or less becoming northwest.
waves 1 foot or less. 
.wednesday...northeast winds 10 knots or less becoming northwest.
a chance of showers and thunderstorms. waves 1 foot or less. 
.thursday...northwest winds 5 to 15 knots. waves 1 to 2 feet. 
.friday...northwest winds 5 to 10 knots becoming north. waves
1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 100203
glflo 
expires:202608100900;;912287

open lake forecast for lake ontario
national weather service buffalo ny
1003 pm edt sun aug 9 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 high pressure ridge averaging 30.3 inches begins to 
exit tonight. on the backside of the ridge, a warm front sweeps 
northeastward across lake ontario tonight into monday morning. a 
cold front then sweeps eastward across the lake monday evening. 
behind the cold front, a trough averaging 29.8 inches should linger 
over the eastern great lakes through thursday. by this friday, a 
high pressure ridge averaging 30.0 inches should build from the 
upper great lakes.


loz063>065-100900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 pm edt sun aug 9 2026

.overnight...south winds 5 to 15 knots. waves 1 foot or
less. 
.monday...south winds 10 to 15 knots becoming west. showers
likely with a chance of thunderstorms in the morning, then a
chance of showers and thunderstorms in the afternoon. waves 1 to
2 feet. 
.monday night...west winds 10 to 15 knots becoming northwest. a
chance of showers in the evening. waves 1 to 2 feet. 
.tuesday...northwest winds 5 to 15 knots becoming west. waves
1 to 2 feet. 
.tuesday night...west winds 5 to 10 knots. waves 2 feet or less. 
.wednesday...west winds 10 knots or less. a chance of showers
during the day, then showers likely with a chance of
thunderstorms wednesday night. waves 1 foot or less. 
.thursday...northwest winds 10 to 15 knots. a chance of showers
during the day. waves 1 to 3 feet. 
.friday...northwest winds 5 to 10 knots becoming north. waves
1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 100150
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open lake forecast for lake erie
national weather service cleveland oh
950 pm edt sun aug 9 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 lift across lake erie this evening. three weak 
low pressure systems 29.90 inches will move through the region 
late tonight through wednesday. high pressure 30.00 inches will 
build into the region starting on thursday.


lez165>167-100815-
vermilion to avon point oh beyond 5 nm 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-
950 pm edt sun aug 9 2026

.rest of tonight...south winds 5 to 15 knots becoming southwest
15 to 20 knots. showers likely with a chance of thunderstorms,
then a chance of showers and thunderstorms late. waves 1 foot or
less building to 2 to 4 feet. 
.monday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. a chance of showers and thunderstorms early, then a
slight chance of showers and thunderstorms late in the morning. a
slight chance of showers and thunderstorms late. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.monday night...west winds 10 to 15 knots. a chance of showers
and thunderstorms. waves 1 to 3 feet. 
.tuesday...north winds 10 knots or less becoming northeast. a
chance of showers and thunderstorms in the morning, then a chance
of showers in the afternoon. waves around 1 foot. 
.tuesday night...east winds 10 knots or less becoming southwest.
a chance of showers. waves 1 foot or less. 
.wednesday...southwest winds 5 to 10 knots becoming northwest. a
chance of showers and thunderstorms. waves 2 feet or less. 
.thursday...northwest winds 5 to 10 knots becoming north. waves
1 to 2 feet. 
.friday...north winds 5 to 10 knots becoming northeast. waves
1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 100150
glfle 
expires:202608100815;;912024

open lake forecast for lake erie
national weather service cleveland oh
950 pm edt sun aug 9 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 lift across lake erie this evening. three weak 
low pressure systems 29.90 inches will move through the region 
late tonight through wednesday. high pressure 30.00 inches will 
build into the region starting on thursday.


lez061-168-169-100815-
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-
950 pm edt sun aug 9 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 100150
glfle 
expires:202608100815;;912022

open lake forecast for lake erie
national weather service cleveland oh
950 pm edt sun aug 9 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 lift across lake erie this evening. three weak 
low pressure systems 29.90 inches will move through the region 
late tonight through wednesday. high pressure 30.00 inches will 
build into the region starting on thursday.


lez162>164-100815-
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-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
950 pm edt sun aug 9 2026

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

winds and waves higher in and near thunderstorms.

$$

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open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt sun aug 9 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...this evening through early next week an active pattern
with a stalled frontal boundary draped over the southern great
lakes region brings back chances for organized thunderstorms to
the region. by the end of next week, high pressure around 30.1
inches builds south from central canada.


lhz361-100945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
941 pm edt sun aug 9 2026

.rest of tonight...light and variable winds. waves 1 to 3 feet. 
.monday...west winds 5 to 10 knots. waves 2 feet or less. 
.monday night...west winds 5 to 10 knots  becoming light and
variable. waves 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 
.tuesday night...east winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.wednesday...northwest winds 5 to 10 knots in the morning
becoming light and variable...then becoming northwest 5 to
10 knots late in the afternoon increasing to 10 to 15 knots. a
chance of showers in the morning. waves 2 feet or less. 
.thursday...northwest winds 10 to 15 knots decreasing to 5 to
10 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. waves 1 to 3 feet building to 3 to
5 feet . 
.friday...northwest winds 5 to 10 knots. waves 1 to 3 feet. 


$$

fzus63 kdtx 100141
glfsc 
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lake st clair forecast
national weather service detroit/pontiac mi
941 pm edt sun aug 9 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...this evening through early next week an active pattern
with a stalled frontal boundary draped over the southern great
lakes region brings back chances for organized thunderstorms to
the region. by the end of next week, high pressure around 30.1
inches builds south from central canada.


lcz460-100945-
lake st clair-
941 pm edt sun aug 9 2026

.rest of tonight...southwest winds 10 to 15 knots. mostly cloudy
with showers likely and a chance of thunderstorms. waves 2 feet or
less.
.monday...west winds 10 to 15 knots diminishing to 5 to 10 knots in
the afternoon. mostly cloudy in the morning then clearing. waves 2
feet or less.
.monday night...northwest winds 5 to 10 knots veering to the north
in the late evening and overnight. partly cloudy. a chance of light
showers after midnight. waves 2 feet or less.
.tuesday...east winds 5 to 10 knots. partly sunny. a chance of light
showers early in the afternoon. waves 2 feet or less.
.tuesday night...south winds 5 to 10 knots. partly cloudy. a chance
of light showers . waves 2 feet or less.
.wednesday...west winds 5 to 10 knots veering to the northwest in
the evening. partly sunny with a chance of light showers in the
morning...then partly cloudy with a chance of showers and
thunderstorms in the afternoon and evening. waves 2 feet or less.
.thursday...northeast winds 10 to 15 knots. mostly clear. waves 2
feet or less.
.friday...northeast winds 10 to 15 knots. mostly clear. waves 2 feet
or less.

$$

fzus63 kdtx 100141
glflh 
expires:202608100945;;911740

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt sun aug 9 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...this evening through early next week an active pattern
with a stalled frontal boundary draped over the southern great
lakes region brings back chances for organized thunderstorms to
the region. by the end of next week, high pressure around 30.1
inches builds south from central canada.


lhz362-363-100945-
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-
941 pm edt sun aug 9 2026

.rest of tonight...north winds 5 to 10 knots. a chance of showers
this evening. waves 1 to 3 feet. 
.monday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.monday night...north winds 5 to 10 knots backing to the
northwest after midnight. waves 1 to 3 feet. 
.tuesday...light and variable winds. waves 2 feet or less. 
.tuesday night...east winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.wednesday...light and variable winds becoming north 5 to
10 knots late in the afternoon...then backing to the northwest
late in the evening. a chance of showers late in the morning.
waves 2 feet or less. 
.thursday...northwest winds 10 to 15 knots. waves 1 to 3 feet
building to 3 to 5 feet . 
.friday...north winds 5 to 10 knots. waves 2 to 4 feet subsiding
to 1 to 3 feet. 


$$

fzus63 kdtx 100141
glflh 
expires:202608100945;;911741

open lake forecast for lake huron
national weather service detroit/pontiac mi
941 pm edt sun aug 9 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...this evening through early next week an active pattern
with a stalled frontal boundary draped over the southern great
lakes region brings back chances for organized thunderstorms to
the region. by the end of next week, high pressure around 30.1
inches builds south from central canada.


lhz462>464-100945-
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-
941 pm edt sun aug 9 2026

.rest of tonight...south winds 10 to 15 knots veering to the west
early in the morning. showers likely this evening...then a chance
of showers after midnight. waves 1 to 3 feet. 
.monday...west winds 5 to 10 knots. waves 2 feet or less. 
.monday night...north winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.tuesday...light and variable winds becoming northeast 5 to
10 knots early in the afternoon. waves 2 feet or less. 
.tuesday night...east winds 5 to 10 knots veering to the
southeast in the late evening and overnight. waves 2 feet or
less. 
.wednesday...south winds 5 to 10 knots. a chance of showers.
waves 2 feet or less. 
.thursday...northwest winds 10 to 15 knots. waves 1 to 3 feet. 
.friday...north winds 5 to 10 knots. waves 1 to 3 feet. 


$$