fzus61 kbuf 122002
glflo 
expires:202608130300;;074877

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt wed aug 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 trough averaging 29.7 inches will move across the lakes this 
evening where it will linger through thursday. a cold front then 
sweeps across the lake thursday night, with a 30.2 inch high 
pressure ridge building in from the upper great lakes on friday, 
settling over the lower great lakes region on saturday. a low 
averaging 29.7 inches is expected to approach the lake sunday. the 
low will move northwest of the lake monday.


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

.tonight...southwest winds 10 knots or less becoming northwest.
showers likely with a chance of thunderstorms early. some
thunderstorms may produce gusty winds early. waves 1 foot or
less. 
.thursday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.thursday night...west winds 10 knots or less becoming north.
waves 1 foot or less. 
.friday...north winds 10 knots or less becoming northeast. waves
1 foot or less. 
.friday night...northeast winds 10 knots or less. waves 1 foot or
less. 
.saturday...east winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.sunday...southeast winds 5 to 10 knots becoming northwest. a
chance of showers and thunderstorms. waves 1 foot or less. 
.monday...northwest winds 5 to 10 knots. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 122002
glflo 
expires:202608130300;;074878

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt wed aug 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 trough averaging 29.7 inches will move across the lakes this 
evening where it will linger through thursday. a cold front then 
sweeps across the lake thursday night, with a 30.2 inch high 
pressure ridge building in from the upper great lakes on friday, 
settling over the lower great lakes region on saturday. a low 
averaging 29.7 inches is expected to approach the lake sunday. the 
low will move northwest of the lake monday.


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

.tonight...southwest winds 5 to 10 knots becoming west. showers
likely with a chance of thunderstorms early, then a chance of
showers and thunderstorms. some thunderstorms may produce gusty
winds early. waves 1 foot or less. 
.thursday...northwest winds 5 to 10 knots becoming west. waves
1 foot or less. 
.thursday night...west winds 10 knots or less becoming north.
waves 1 foot or less. 
.friday...north winds 10 knots or less. waves 1 foot or less. 
.friday night...north winds 5 to 10 knots becoming northeast.
waves 1 foot or less. 
.saturday...northeast winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.sunday...southeast winds 5 to 10 knots becoming northwest. a
chance of showers and thunderstorms. waves 1 foot or less. 
.monday...north winds 5 to 10 knots becoming west. waves 1 foot
or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 122001
glfle 
expires:202608130230;;074839

open lake forecast for lake erie
national weather service cleveland oh
401 pm edt wed aug 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 frontal boundary will waver across the ohio valley through
thursday evening with low pressure 29.80 inches moving through
tonight. high pressure 30.20 inches builds into the great lakes
region friday and will drift southeast through saturday evening. a
warm front lifts north across the lake sunday morning followed by
a cold front and low pressure 29.90 inches sunday night. 


lez162>164-130230-
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-
401 pm edt wed aug 12 2026

.tonight...west winds 5 to 10 knots becoming northwest. a chance
of showers and thunderstorms early, then a slight chance of
showers and thunderstorms late this evening. waves 1 foot or
less. 
.thursday...north winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.thursday night...southeast winds 10 knots or less becoming east.
waves 2 feet or less. 
.friday...east winds 5 to 10 knots. waves 1 to 2 feet. 
.friday night...east winds 5 to 10 knots. waves 2 feet or less. 
.saturday...east winds 5 to 10 knots becoming south. a chance of
showers. waves 2 feet or less. 
.sunday...southwest winds around 10 knots becoming northwest. a
chance of showers and thunderstorms during the day, then a chance
of showers sunday night. waves 1 to 2 feet. 
.monday...north winds 5 to 10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 122001
glfle 
expires:202608130230;;074840

open lake forecast for lake erie
national weather service cleveland oh
401 pm edt wed aug 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 frontal boundary will waver across the ohio valley through
thursday evening with low pressure 29.80 inches moving through
tonight. high pressure 30.20 inches builds into the great lakes
region friday and will drift southeast through saturday evening. a
warm front lifts north across the lake sunday morning followed by
a cold front and low pressure 29.90 inches sunday night. 


lez165>167-130230-
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-
401 pm edt wed aug 12 2026

.tonight...southwest winds 5 to 10 knots becoming northwest. a
chance of showers and thunderstorms this evening, then a chance
of showers with a slight chance of thunderstorms after midnight.
a slight chance of showers late. waves 1 foot or less. 
.thursday...north winds 10 knots or less becoming northwest. a
slight chance of showers early. waves 1 foot or less. 
.thursday night...northwest winds 10 knots or less becoming
northeast. waves 2 feet or less. 
.friday...east winds 5 to 10 knots becoming northeast. waves 1 to
3 feet. 
.friday night...northeast winds 5 to 10 knots becoming east.
waves 1 to 2 feet. 
.saturday...east winds 5 to 10 knots becoming southeast. a chance
of showers saturday night. waves 1 to 2 feet. 
.sunday...southwest winds 10 to 15 knots becoming north. showers
likely with a chance of thunderstorms. waves 1 to 3 feet. 
.monday...north winds 5 to 15 knots. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 122001
glfle 
expires:202608130230;;074841

open lake forecast for lake erie
national weather service cleveland oh
401 pm edt wed aug 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 frontal boundary will waver across the ohio valley through
thursday evening with low pressure 29.80 inches moving through
tonight. high pressure 30.20 inches builds into the great lakes
region friday and will drift southeast through saturday evening. a
warm front lifts north across the lake sunday morning followed by
a cold front and low pressure 29.90 inches sunday night. 


lez061-168-169-130230-
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-
401 pm edt wed aug 12 2026

.tonight...southwest winds 5 to 10 knots becoming northwest.
showers likely with a chance of thunderstorms early, then a
chance of showers with a slight chance of thunderstorms. a slight
chance of showers late. waves 1 foot or less. 
.thursday...north winds 10 knots or less becoming west. a slight
chance of showers early. waves 1 foot or less. 
.thursday night...west winds 10 knots or less becoming northeast.
waves 2 feet or less. 
.friday...northeast winds 10 knots or less. waves 2 feet or less.
.friday night...northeast winds 5 to 10 knots becoming east.
waves 2 feet or less. 
.saturday...east winds 5 to 10 knots becoming southeast. a chance
of showers saturday night. waves 2 feet or less. 
.sunday...southwest winds 5 to 15 knots becoming northwest.
showers likely with a chance of thunderstorms during the day,
then a chance of showers sunday night. waves 1 to 3 feet. 
.monday...north winds 5 to 15 knots. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 121942
glflh 
expires:202608130345;;074393

open lake forecast for lake huron
national weather service detroit/pontiac mi
342 pm edt wed aug 12 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...a quasi-stationary front holds over the southern great
lakes through thursday, bringing waves of showers and
thunderstorms across the waters. high pressure, 30.00 inches,
will dominate the region to the north of the front. light winds
will be variable over the next 2 days, but maintain an overall
northerly trend over lake huron and southerly toward western lake
erie.


lhz362-363-130345-
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-
342 pm edt wed aug 12 2026

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


$$

fzus63 kdtx 121942
glflh 
expires:202608130345;;074392

open lake forecast for lake huron
national weather service detroit/pontiac mi
342 pm edt wed aug 12 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...a quasi-stationary front holds over the southern great
lakes through thursday, bringing waves of showers and
thunderstorms across the waters. high pressure, 30.00 inches,
will dominate the region to the north of the front. light winds
will be variable over the next 2 days, but maintain an overall
northerly trend over lake huron and southerly toward western lake
erie.


lhz361-130345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
342 pm edt wed aug 12 2026

.tonight...northwest winds 5 to 10 knots. waves 2 feet or less. 
.thursday...northwest winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...northwest winds 5 to 10 knots. waves 2 feet or
less. 
.friday...north winds 5 to 10 knots until late afternoon becoming
light and variable. waves 2 feet or less. 
.friday night...light and variable winds becoming east 5 to
10 knots after midnight. waves 2 feet or less. 
.saturday...southeast winds 5 to 10 knots increasing to 10 to
15 knots late in the morning...then decreasing to 5 to 10 knots
late in the evening. a chance of showers late in the afternoon.
waves 1 to 3 feet building to 2 to 4 feet late in the afternoon. 
.sunday...south winds 5 to 10 knots veering to the west in the
late morning and early afternoon...then becoming northwest 10 to
15 knots . a chance of showers early in the morning. waves 1 to
3 feet. 
.monday...northwest winds 5 to 10 knots backing to the west .
waves 1 to 3 feet. 


$$

fzus63 kdtx 121942
glflh 
expires:202608130345;;074394

open lake forecast for lake huron
national weather service detroit/pontiac mi
342 pm edt wed aug 12 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...a quasi-stationary front holds over the southern great
lakes through thursday, bringing waves of showers and
thunderstorms across the waters. high pressure, 30.00 inches,
will dominate the region to the north of the front. light winds
will be variable over the next 2 days, but maintain an overall
northerly trend over lake huron and southerly toward western lake
erie.


lhz462>464-130345-
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-
342 pm edt wed aug 12 2026

.tonight...light and variable winds becoming northwest 5 to
10 knots early in the morning. a chance of thunderstorms in the
evening. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots. waves 2 feet or less. 
.thursday night...light and variable winds. waves 2 feet or less.
.friday...north winds 5 to 10 knots. waves 1 to 3 feet. 
.friday night...northeast winds 5 to 10 knots veering to the east
after midnight. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.saturday...southeast winds 5 to 10 knots. a chance of showers
late in the evening. waves 1 to 3 feet. 
.sunday...south winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and early afternoon...then becoming northwest
5 to 10 knots early in the evening becoming north 10 to 15 knots
by midnight. a chance of showers. a chance of thunderstorms early
in the evening. waves 1 to 3 feet. 
.monday...north winds 10 to 15 knots becoming light and variable.
waves 1 to 3 feet. 


$$

fzus63 kdtx 121942
glfsc 
expires:202608130345;;074425

lake st clair forecast
national weather service detroit/pontiac mi
342 pm edt wed aug 12 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...a quasi-stationary front holds over the southern great
lakes through thursday, bringing waves of showers and
thunderstorms across the waters. high pressure, 30.00 inches,
will dominate the region to the north of the front. light winds
will be variable over the next 2 days, but maintain an overall
northerly trend over lake huron and southerly toward western lake
erie.


lcz460-130345-
lake st clair-
342 pm edt wed aug 12 2026

.tonight...southwest winds 5 to 10 knots veering to the northwest
after midnight. partly cloudy. a chance of light showers early in
the evening...then a chance of showers and thunderstorms late in the
evening. waves 2 feet or less.
.thursday...north winds 5 to 10 knots early in the morning becoming
light and variable. partly sunny. waves 2 feet or less.
.thursday night...east winds 5 to 10 knots. mostly cloudy early in
the evening becoming partly cloudy. waves 2 feet or less.
.friday...east winds 5 to 10 knots. partly sunny. waves 2 feet or
less.
.friday night...northeast winds 10 to 15 knots diminishing to 5 to
10 knots after midnight. mostly clear. waves 2 feet or less.
.saturday...southeast winds 5 to 10 knots increasing to 10 to 15
knots in the evening. mostly sunny becoming partly cloudy. waves 2
feet or less.
.sunday...north winds 10 to 15 knots. partly cloudy. showers likely
and a chance of thunderstorms. waves 2 feet or less.
.monday...northeast winds 10 to 15 knots. mostly clear. waves 2 feet
or less.

$$