fzus61 kbuf 212002
glflo 
expires:202608220300;;125852

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt fri aug 21 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 30.1 inch high will drift east across the canadian 
maritimes tonight through saturday. an elongated 29.7 inch low will 
slowly make its way from the central great lakes to western quebec 
saturday and sunday, while pushing its associated warm and cold 
fronts across the lake between saturday night and sunday morning. 
the low will wobble across western quebec through monday, then eject 
northeastward into labrador on tuesday while a 30.1 inch high builds 
eastward across the ohio valley.


loz062-220300-
lake ontario open waters from the niagara river to hamlin beach-
402 pm edt fri aug 21 2026

.tonight...east winds 10 to 15 knots becoming southeast 15 to
20 knots. waves 1 to 3 feet. 
.saturday...southeast winds 5 to 15 knots becoming east. a chance
of showers and thunderstorms late. waves 1 to 2 feet. 
.saturday night...southeast winds 5 to 15 knots becoming
southwest. showers with a chance of thunderstorms. waves 1 to
2 feet. 
.sunday...southwest winds 10 to 15 knots becoming west 15 to
20 knots. showers likely in the morning, then showers with a
chance of thunderstorms in the afternoon. waves 1 to 3 feet
building to 3 to 5 feet. 
.sunday night...west winds 15 to 20 knots. showers with a chance
of thunderstorms in the evening, then a chance of showers
overnight. waves 3 to 5 feet. 
.monday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers. waves 3 to 5 feet subsiding to
2 to 4 feet. 
.tuesday...west winds 5 to 15 knots becoming southwest. waves
1 to 3 feet subsiding to 1 foot or less. 
.wednesday...southwest winds 10 knots or less becoming south. a
chance of showers wednesday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 212002
glflo 
expires:202608220300;;125853

open lake forecast for lake ontario
national weather service buffalo ny
402 pm edt fri aug 21 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 30.1 inch high will drift east across the canadian 
maritimes tonight through saturday. an elongated 29.7 inch low will 
slowly make its way from the central great lakes to western quebec 
saturday and sunday, while pushing its associated warm and cold 
fronts across the lake between saturday night and sunday morning. 
the low will wobble across western quebec through monday, then eject 
northeastward into labrador on tuesday while a 30.1 inch high builds 
eastward across the ohio valley.


loz063>065-220300-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 pm edt fri aug 21 2026

.tonight...northeast winds 5 to 15 knots becoming southeast 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.saturday...southeast winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of showers and thunderstorms late. waves 2 to
4 feet subsiding to 1 foot or less. 
.saturday night...southeast winds 10 to 15 knots becoming south
15 to 20 knots. showers with a chance of thunderstorms. waves
1 to 3 feet building to 2 to 4 feet. 
.sunday...south winds 15 to 20 knots becoming west. showers with
a chance of thunderstorms. waves 2 to 4 feet building to 3 to
5 feet. 
.sunday night...west winds 15 to 20 knots. showers with a chance
of thunderstorms in the evening, then showers overnight. waves
3 to 6 feet. 
.monday...west winds 15 to 25 knots. showers with a chance of
thunderstorms. waves 3 to 6 feet. 
.tuesday...west winds 15 to 20 knots diminishing to 5 to
15 knots. a chance of showers during the day. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.wednesday...southwest winds 10 knots or less becoming south
10 to 15 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 211944
glfle 
expires:202608220215;;125071

open lake forecast for lake erie
national weather service cleveland oh
344 pm edt fri aug 21 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 lingers over the lake this evening 
ahead of a cold front approaching from the west. pressure drops
steadily to 29.80 inches with the passage of the cold front
saturday late afternoon/evening. high pressure slowly builds back
in sunday and monday to 30.00 inches over lake erie on tuesday.



lez165>167-220215-
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-
344 pm edt fri aug 21 2026

.tonight...east winds 5 to 10 knots becoming south. a chance of
showers with a slight chance of thunderstorms after midnight.
waves 2 feet or less. 
.saturday...south winds 10 to 15 knots becoming southwest. a
slight chance of showers and thunderstorms in the morning, then a
chance of showers and thunderstorms early in the afternoon.
showers likely with a chance of thunderstorms late. waves 1 to
2 feet. 
.saturday night...southwest winds 10 to 15 knots becoming
northwest 15 to 20 knots. showers with a chance of thunderstorms
in the evening, then a chance of showers overnight. waves 1 to
3 feet building to 2 to 4 feet. 
.sunday...northwest winds 15 to 20 knots becoming west. a chance
of showers in the afternoon. waves 3 to 5 feet. 
.sunday night...northwest winds 15 to 20 knots diminishing to
10 to 15 knots. a chance of showers. waves 2 to 4 feet. 
.monday...northwest winds 15 to 20 knots becoming west 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...west winds 5 to 10 knots 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. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 211944
glfle 
expires:202608220215;;125072

open lake forecast for lake erie
national weather service cleveland oh
344 pm edt fri aug 21 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 lingers over the lake this evening 
ahead of a cold front approaching from the west. pressure drops
steadily to 29.80 inches with the passage of the cold front
saturday late afternoon/evening. high pressure slowly builds back
in sunday and monday to 30.00 inches over lake erie on tuesday.



lez061-168-169-220215-
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-
344 pm edt fri aug 21 2026

.tonight...northeast winds 5 to 10 knots becoming south. waves
2 feet or less. 
.saturday...south winds 5 to 10 knots becoming west. a slight
chance of showers and thunderstorms late in the morning. a chance
of showers with a slight chance of thunderstorms early in the
afternoon, then a chance of showers and thunderstorms late. waves
2 feet or less. 
.saturday night...south winds 10 to 15 knots becoming west 15 to
20 knots. showers with a chance of thunderstorms. waves 1 to
3 feet building to 2 to 4 feet. 
.sunday...west winds 15 to 20 knots. showers likely in the
morning, then showers with a chance of thunderstorms in the
afternoon. waves 3 to 5 feet. 
.sunday night...west winds 15 to 20 knots becoming northwest
10 to 15 knots. showers with a chance of thunderstorms in the
evening, then showers likely overnight. waves 3 to 5 feet
subsiding to 2 to 3 feet. 
.monday...west winds 15 to 20 knots diminishing to 5 to 10 knots.
a chance of showers during the day. waves 2 to 4 feet subsiding
to 1 to 2 feet. 
.tuesday...west winds 5 to 10 knots becoming southwest. waves
1 to 2 feet. 
.wednesday...south winds 5 to 10 knots. a chance of showers
wednesday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 211944
glfle 
expires:202608220215;;125070

open lake forecast for lake erie
national weather service cleveland oh
344 pm edt fri aug 21 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 lingers over the lake this evening 
ahead of a cold front approaching from the west. pressure drops
steadily to 29.80 inches with the passage of the cold front
saturday late afternoon/evening. high pressure slowly builds back
in sunday and monday to 30.00 inches over lake erie on tuesday.



lez162>164-220215-
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-
344 pm edt fri aug 21 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 211930
glflh 
expires:202608220330;;124664

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 pm edt fri aug 21 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 cold front will move across the great lakes tomorrow
morning which will veer wind direction to the northwest. showers
and thunderstorms are expected just ahead of and along the front.
post-frontal northwest flow leads to gusty winds through the day
on sunday.


lhz361>363-220330-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
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-
330 pm edt fri aug 21 2026

.tonight...southeast winds 10 to 15 knots veering to the south
early in the morning. scattered showers in the evening...then
numerous showers after midnight. a chance of waterspouts after
midnight. waves 3 to 5 feet. 
.saturday...south winds 10 to 15 knots becoming southwest 5 to
10 knots in the late morning and early afternoon...then veering
to the west late in the afternoon. numerous showers in the
morning...then numerous showers and a chance of thunderstorms in
the afternoon. a chance of waterspouts. waves 2 to 4 feet
subsiding to 1 to 3 feet in the afternoon. 
.saturday night...northwest winds 15 to 20 knots increasing to
20 to 25 knots after midnight. scattered showers and a chance of
thunderstorms in the evening. waves 4 to 6 feet. 
.sunday...northwest winds 20 to 25 knots with gusts to around
30 knots. a chance of waterspouts in the morning. scattered
showers. waves 6 to 9 feet. waves occasionally around 12 feet. 
.sunday night...northwest winds 20 to 25 knots with gusts to
around 30 knots decreasing to 15 to 20 knots after midnight.
scattered showers. waves 6 to 9 feet. waves occasionally around
12 feet. 
.monday...northwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots late in the afternoon.
waves 3 to 5 feet. 
.tuesday...west winds 5 to 10 knots backing to the south . waves
1 to 3 feet. 
.wednesday...south winds 5 to 10 knots increasing to 10 to
15 knots. a chance of showers. waves 1 to 3 feet. 


$$

fzus63 kdtx 211930
glfsc 
expires:202608220330;;124669

lake st clair forecast
national weather service detroit/pontiac mi
330 pm edt fri aug 21 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 cold front will move across the great lakes tomorrow
morning which will veer wind direction to the northwest. showers
and thunderstorms are expected just ahead of and along the front.
post-frontal northwest flow leads to gusty winds through the day
on sunday.


lcz460-220330-
lake st clair-
330 pm edt fri aug 21 2026

.tonight...southeast winds 10 to 15 knots becoming south 5 to 10
knots after midnight. partly cloudy in the evening...then mostly
cloudy with scattered light showers and a chance of thunderstorms
after midnight. waves 2 feet or less.
.saturday...southwest winds 5 to 10 knots. mostly cloudy. scattered
light showers early in the morning. numerous showers in the late
morning and afternoon. a chance of thunderstorms in the afternoon.
waves 2 feet or less.
.saturday night...northwest winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. partly cloudy until
early morning then clearing. scattered light showers and a chance of
thunderstorms early in the evening. waves 2 feet or less.
.sunday...northwest winds 15 to 20 knots diminishing to 10 to 15
knots early in the afternoon. partly sunny. scattered light showers
early in the afternoon. waves 1 to 3 feet.
.sunday night...northwest winds 10 to 15 knots. mostly cloudy early
in the evening becoming partly cloudy. scattered light showers early
in the evening. waves 2 feet or less.
.monday...northwest winds 10 to 15 knots diminishing to 5 to 10
knots in the evening. sunny in the morning becoming mostly clear.
waves 2 feet or less.
.tuesday...south winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.wednesday...south winds 10 to 15 knots. partly cloudy. a chance of
showers. waves 2 feet or less.

$$

fzus63 kdtx 211930
glflh 
expires:202608220330;;124665

open lake forecast for lake huron
national weather service detroit/pontiac mi
330 pm edt fri aug 21 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 cold front will move across the great lakes tomorrow
morning which will veer wind direction to the northwest. showers
and thunderstorms are expected just ahead of and along the front.
post-frontal northwest flow leads to gusty winds through the day
on sunday.


lhz462>464-220330-
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-
330 pm edt fri aug 21 2026

.tonight...southeast winds 10 to 15 knots. scattered showers
after midnight. a chance of waterspouts after midnight. waves
1 to 3 feet building to 2 to 4 feet after midnight. 
.saturday...south winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then backing
to the southeast late in the afternoon. numerous showers in the
morning...then showers and a chance of thunderstorms in the
afternoon. a chance of waterspouts. waves 1 to 3 feet. 
.saturday night...north winds 10 to 15 knots becoming northwest
15 to 20 knots in the late evening and overnight. a chance of
waterspouts in the evening. numerous showers and a chance of
thunderstorms in the evening...then scattered showers after
midnight. waves 1 to 3 feet building to 5 to 7 feet in the late
evening and overnight. waves occasionally around 10 feet. 
.sunday...northwest winds 15 to 20 knots increasing to 20 to
25 knots in the late morning and early afternoon...then
decreasing to 15 to 20 knots early in the afternoon. gusts to
30 knots. numerous showers in the morning...then numerous showers
and a chance of thunderstorms in the afternoon. waves 6 to
9 feet. waves occasionally around 12 feet. 
.sunday night...northwest winds 15 to 20 knots. gusts to 30 knots
early in the evening. numerous showers and a chance of
thunderstorms in the evening...then scattered showers after
midnight. waves 6 to 9 feet. waves occasionally around 12 feet. 
.monday...northwest winds 15 to 20 knots decreasing to 5 to
10 knots late in the afternoon. waves 3 to 5 feet subsiding to
1 to 3 feet late in the evening. 
.tuesday...west winds 5 to 10 knots veering to the northeast
early in the evening...then veering to the south by midnight.
waves 2 feet or less. 
.wednesday...southwest winds 5 to 10 knots becoming south 10 to
15 knots . a chance of showers . waves 1 to 3 feet. 


$$