fzus61 kbuf 211403
glflo 
expires:202607212100;;350692

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt tue jul 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 29.3 inch low will be near james bay with multiple frontal 
boundaries crossing the lake today through tonight. a secondary cold 
front will cross the lake wednesday, with a 30.2 inch high building 
across the lower great lakes region wednesday night through friday. 
the high will move off the east coast saturday.


loz062-212100-
lake ontario open waters from the niagara river to hamlin beach-
1003 am edt tue jul 21 2026

.rest of today...south winds 15 to 25 knots becoming southwest.
showers with a chance of thunderstorms. some thunderstorms may
produce gusty winds. waves 3 to 5 feet. 
.tonight...southwest winds 15 to 20 knots becoming west. showers
with a chance of thunderstorms early, then a chance of showers
and thunderstorms late in the evening. some thunderstorms may
produce gusty winds in the evening. waves 3 to 5 feet. 
.wednesday...west winds 15 to 25 knots. waves 3 to 6 feet
building to 4 to 7 feet. waves occasionally around 9 feet. 
.wednesday night...northwest winds 15 to 20 knots becoming west
10 to 15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.thursday...west winds 10 knots or less becoming southwest. waves
2 feet or less. 
.friday...south winds 10 knots or less becoming southeast. waves
1 foot or less. 
.saturday...south winds 10 knots or less becoming southwest.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 211403
glflo 
expires:202607212100;;350693

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt tue jul 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 29.3 inch low will be near james bay with multiple frontal 
boundaries crossing the lake today through tonight. a secondary cold 
front will cross the lake wednesday, with a 30.2 inch high building 
across the lower great lakes region wednesday night through friday. 
the high will move off the east coast saturday.


loz063>065-212100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 am edt tue jul 21 2026

.rest of today...south winds 15 to 20 knots. showers with a
chance of thunderstorms late this morning, then showers with
thunderstorms likely this afternoon. some thunderstorms may
produce gusty winds. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.tonight...south winds 10 to 15 knots becoming west 15 to
20 knots. showers likely with a chance of thunderstorms in the
evening, then a chance of showers and thunderstorms after
midnight. a chance of showers late. some thunderstorms may
produce gusty winds in the evening. waves 2 to 4 feet building to
3 to 6 feet. 
.wednesday...west winds 15 to 25 knots. waves 5 to 8 feet. waves
occasionally around 10 feet. 
.wednesday night...west winds 15 to 25 knots diminishing to 10 to
15 knots. waves 5 to 8 feet subsiding to 2 to 4 feet. waves
occasionally around 10 feet. 
.thursday...west winds 5 to 15 knots becoming southwest less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.friday...south winds 10 knots or less. waves 1 foot or less. 
.saturday...south winds 10 knots or less. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 211338
glfle 
expires:202607212015;;349941

open lake forecast for lake erie
national weather service cleveland oh
938 am edt tue jul 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...
a strong cold front will move east across lake erie today with a
trough averaging 29.90 inches lingering over the lower great lakes
through wednesday. high pressure 30.20 inches will expand east
across the region thursday before drifting eastward friday into
saturday.


lez164>167-212015-
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-
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-
938 am edt tue jul 21 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 211338
glfle 
expires:202607212015;;349942

open lake forecast for lake erie
national weather service cleveland oh
938 am edt tue jul 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...
a strong cold front will move east across lake erie today with a
trough averaging 29.90 inches lingering over the lower great lakes
through wednesday. high pressure 30.20 inches will expand east
across the region thursday before drifting eastward friday into
saturday.


lez061-168-169-212015-
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-
938 am edt tue jul 21 2026

.rest of today...southwest winds 15 to 25 knots. showers with
thunderstorms likely, then a chance of showers and thunderstorms
late. waves 5 to 8 feet. waves occasionally around 10 feet. 
.tonight...west winds 15 to 20 knots becoming northwest. showers
with thunderstorms likely in the evening, then a chance of
showers with a slight chance of thunderstorms after midnight.
waves 3 to 6 feet. 
.wednesday...northwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet. 
.wednesday night...northwest winds 5 to 15 knots. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.thursday...northwest winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.friday...southeast winds 10 knots or less. waves 1 foot or less.
.saturday...south winds 10 knots or less. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 211338
glfle 
expires:202607212015;;349940

open lake forecast for lake erie
national weather service cleveland oh
938 am edt tue jul 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...
a strong cold front will move east across lake erie today with a
trough averaging 29.90 inches lingering over the lower great lakes
through wednesday. high pressure 30.20 inches will expand east
across the region thursday before drifting eastward friday into
saturday.


lez162-163-212015-
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-
938 am edt tue jul 21 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 211347
glflh 
expires:202607212200;;350174

open lake forecast for lake huron
national weather service detroit/pontiac mi
947 am edt tue jul 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 tracks across the great lakes late
tonight, with potential for strong to severe thunderstorms in its
wake. a second cold front then sweeps across the area tuesday
evening, bringing a brief period of gusts to gale force. high
pressure fills in mid-week for a drier pattern to end the work
week.


lhz361-212200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
947 am edt tue jul 21 2026

.rest of today...west winds 15 to 20 knots with gusts to around 
30 knots increasing to 20 to 25 knots with gusts to around 30 
knots late in the afternoon. waves 3 to 5 feet building to 6 to 9 
feet late in the afternoon. waves occasionally around 12 feet. 
.tonight...northwest winds to 30 knots with brief gusts to 35 
knot gales. waves 8 to 12 feet. waves occasionally around 15 feet.
.wednesday...northwest winds 20 to 25 knots. gusts to 30 knots
early in the morning then 30 knots early in the afternoon. waves
6 to 9 feet. waves occasionally around 12 feet. 
.wednesday night...northwest winds 15 to 20 knots with gusts to
around 30 knots decreasing to 10 to 15 knots in the late evening
and overnight. waves 3 to 5 feet. 
.thursday...west winds 10 to 15 knots becoming southwest 5 to
10 knots late in the afternoon. waves 1 to 3 feet. 
.friday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then backing
to the south . waves 1 to 3 feet. 
.saturday...southwest winds 5 to 10 knots backing to the
southeast . a chance of showers by midnight. waves 2 feet or
less. 


$$

fzus63 kdtx 211347
glfsc 
expires:202607212200;;350178

lake st clair forecast
national weather service detroit/pontiac mi
947 am edt tue jul 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 tracks across the great lakes late
tonight, with potential for strong to severe thunderstorms in its
wake. a second cold front then sweeps across the area tuesday
evening, bringing a brief period of gusts to gale force. high
pressure fills in mid-week for a drier pattern to end the work
week.


lcz460-212200-
lake st clair-
947 am edt tue jul 21 2026

...small craft advisory in effect through this evening...

.rest of today...west winds 15 to 20 knots. mostly sunny. light
showers likely and a chance of thunderstorms in the afternoon. waves
1 to 3 feet.
.tonight...northwest winds 15 to 20 knots increasing to 20 to 25
knots with gusts to 30 knots in the late evening and overnight.
mostly clear. a chance of showers and thunderstorms early in the
evening. waves 1 to 3 feet building to 2 to 4 feet in the late
evening and overnight.
.wednesday...northwest winds 20 to 25 knots diminishing to 10 to 15
knots. mostly sunny. waves 1 to 3 feet.
.wednesday night...north winds 10 to 15 knots diminishing to 5 to 10
knots after midnight. clear. waves 2 feet or less.
.thursday...north winds 5 to 10 knots in the morning becoming light
and variable...then becoming southeast 5 to 10 knots in the evening.
clear. waves 2 feet or less.
.friday...southeast winds 5 to 10 knots. mostly clear. waves 2 feet
or less.
.saturday...south winds 5 to 10 knots. mostly clear. waves 2 feet or
less.

$$

fzus63 kdtx 211347
glflh 
expires:202607212200;;350175

open lake forecast for lake huron
national weather service detroit/pontiac mi
947 am edt tue jul 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 tracks across the great lakes late
tonight, with potential for strong to severe thunderstorms in its
wake. a second cold front then sweeps across the area tuesday
evening, bringing a brief period of gusts to gale force. high
pressure fills in mid-week for a drier pattern to end the work
week.


lhz362-363-212200-
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-
947 am edt tue jul 21 2026

.rest of today...southwest winds 10 to 15 knots becoming west
15 to 20 knots with gusts to around 30 knots late in the
afternoon. a chance of showers. waves 4 to 6 feet building to
6 to 9 feet late in the afternoon. waves occasionally around
12 feet. 
.tonight...northwest winds to 30 knots with brief gusts to 35 
knot gales. waves 10 to 14 feet. waves occasionally around 18 
feet. 
.wednesday...northwest winds 20 to 25 knots. gusts to 30 knots
early in the morning then 30 knots early in the afternoon. waves
8 to 12 feet. waves occasionally around 15 feet. 
.wednesday night...northwest winds 15 to 20 knots with gusts to
around 30 knots decreasing to 10 to 15 knots in the late evening
and overnight. waves 5 to 7 feet. waves occasionally around
10 feet. 
.thursday...west winds 5 to 10 knots backing to the south late in
the afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...southwest winds 5 to 10 knots becoming southeast 10 to
15 knots early in the evening...then becoming south 5 to 10 knots
by midnight. waves 1 to 3 feet. 
.saturday...southwest winds 5 to 10 knots becoming south 10 to
15 knots early in the evening...then decreasing to 5 to 10 knots
by midnight. a chance of showers by midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 211347
glflh 
expires:202607212200;;350176

open lake forecast for lake huron
national weather service detroit/pontiac mi
947 am edt tue jul 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 tracks across the great lakes late
tonight, with potential for strong to severe thunderstorms in its
wake. a second cold front then sweeps across the area tuesday
evening, bringing a brief period of gusts to gale force. high
pressure fills in mid-week for a drier pattern to end the work
week.


lhz462>464-212200-
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-
947 am edt tue jul 21 2026

.rest of today...west winds 10 to 15 knots. a chance of showers
and thunderstorms. waves 3 to 5 feet. 
.tonight...northwest winds 15 to 20 knots increasing to 20 to
25 knots with brief gusts to around 30 knots in the late evening 
and overnight. a chance of showers and thunderstorms in the 
evening. waves 6 to 9 feet building to 10 to 14 feet in the late 
evening and overnight. waves occasionally around 18 feet. 
.wednesday...northwest winds 20 to 25 knots decreasing to 15 to
20 knots early in the afternoon. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.wednesday night...northwest winds 10 to 15 knots. waves 4 to
6 feet. waves occasionally around 8 feet. 
.thursday...northwest winds 5 to 10 knots in the morning becoming
light and variable...then becoming south 5 to 10 knots late in
the afternoon. waves 2 to 4 feet subsiding to 2 feet or less. 
.friday...southwest winds 5 to 10 knots backing to the southeast
. waves 2 feet or less. 
.saturday...south winds 5 to 10 knots early in the morning
becoming light and variable...then becoming south 5 to 10 knots .
waves 2 feet or less. 


$$