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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun oct 4 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 29.7 inch low over northwest ontario today will deepen 
to 29.4 inches as it slides just south of james bay over central 
quebec tonight, while sending a pair of cold fronts across the lake. 
a 30.2 inch high over the upper midwest will then build across the 
great lakes monday into tuesday, before sliding into the northeast 
wednesday. a cold front will then pass across the lake thursday.


loz062-041500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt sun oct 4 2026

.today...southeast winds 5 to 10 knots becoming southwest. waves
1 to 3 feet. 
.tonight...southwest winds 10 to 15 knots becoming northwest
15 to 20 knots. waves 1 to 2 feet building to 3 to 6 feet. 
.monday...northwest winds to 30 knots. waves 5 to 8 feet. waves
occasionally around 10 feet. 
.monday night...northwest winds 15 to 25 knots diminishing to
10 to 15 knots. waves 3 to 6 feet subsiding to 1 to 3 feet. 
.tuesday...northwest winds 5 to 15 knots becoming southwest 15 to
20 knots. waves 1 to 3 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.thursday...west winds 15 to 20 knots diminishing to 10 to
15 knots. waves 1 to 3 feet. 

$$

fzus61 kbuf 040803
glflo 
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open lake forecast for lake ontario
national weather service buffalo ny
402 am edt sun oct 4 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 29.7 inch low over northwest ontario today will deepen 
to 29.4 inches as it slides just south of james bay over central 
quebec tonight, while sending a pair of cold fronts across the lake. 
a 30.2 inch high over the upper midwest will then build across the 
great lakes monday into tuesday, before sliding into the northeast 
wednesday. a cold front will then pass across the lake thursday.


loz063>065-041500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt sun oct 4 2026

.today...southeast winds 15 to 20 knots becoming south. waves
2 to 4 feet. 
.tonight...southwest winds 10 to 15 knots becoming northwest and
increasing to 15 to 25 knots. a chance of showers from late
evening on. waves 1 to 3 feet building to 4 to 7 feet. waves
occasionally around 9 feet. 
.monday...northwest winds to 30 knots. waves 5 to 8 feet building
to 6 to 10 feet. waves occasionally around 13 feet. 
.monday night...northwest winds 15 to 25 knots. waves 5 to 8 feet
subsiding to 2 to 4 feet. waves occasionally around 10 feet. 
.tuesday...northwest winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.wednesday...south winds 15 to 25 knots becoming west. a chance
of showers. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.thursday...west winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers. waves 2 to 4 feet building to 3 to
5 feet, then subsiding to 1 to 3 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
400 am edt sun oct 4 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 cold front will cross the lake today before high pressure 30.40
builds over the lake monday and tuesday. the high will drift east
wednesday, allowing a cold front to approach from the west through
thursday.


lez164>166-041415-
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-
400 am edt sun oct 4 2026

.today...southwest winds 5 to 15 knots. waves 1 to 2 feet. 
.tonight...southwest winds 10 to 15 knots becoming northwest
15 to 20 knots. waves 1 to 3 feet building to 3 to 5 feet. 
.monday...northwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday night...northwest winds 5 to 15 knots becoming west
10 knots or less. waves 1 to 3 feet subsiding to 1 foot or less. 
.tuesday...southwest winds 5 to 10 knots increasing to 15 to
25 knots. waves 1 foot or less building to 2 to 4 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west. waves
3 to 5 feet subsiding to 1 to 3 feet. 
.thursday...west winds 10 to 15 knots becoming northwest. waves
1 to 3 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
400 am edt sun oct 4 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 cold front will cross the lake today before high pressure 30.40
builds over the lake monday and tuesday. the high will drift east
wednesday, allowing a cold front to approach from the west through
thursday.


lez061-167>169-041415-
ripley to buffalo ny extending from 5nm 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-
400 am edt sun oct 4 2026

.today...south winds 10 to 15 knots becoming west. waves 2 feet
or less. 
.tonight...southwest winds 15 to 20 knots becoming northwest. a
slight chance of showers. waves 1 to 3 feet building to 3 to
5 feet. 
.monday...northwest winds 15 to 20 knots. waves 3 to 5 feet
subsiding to 2 to 4 feet. 
.monday night...northwest winds 15 to 20 knots diminishing to
5 to 15 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.tuesday...west winds 5 to 10 knots becoming southwest and
increasing to 15 to 25 knots. waves 1 foot or less building to
2 to 4 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west and
diminishing to 10 to 15 knots. waves 3 to 6 feet subsiding to
2 to 4 feet. 
.thursday...west winds 10 to 15 knots becoming northwest. waves
1 to 3 feet. 

$$

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open lake forecast for lake erie
national weather service cleveland oh
400 am edt sun oct 4 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 cold front will cross the lake today before high pressure 30.40
builds over the lake monday and tuesday. the high will drift east
wednesday, allowing a cold front to approach from the west through
thursday.


lez162-163-041415-
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-
400 am edt sun oct 4 2026

.today...southwest winds 5 to 10 knots becoming west. waves
1 foot or less. 
.tonight...west winds 10 to 15 knots becoming northwest. waves
1 foot or less building to 1 to 3 feet. 
.monday...northwest winds 5 to 15 knots. waves 2 feet or less. 
.monday night...northwest winds 10 knots or less becoming west.
waves 1 foot or less. 
.tuesday...southwest winds 5 to 15 knots increasing to 15 to
20 knots. waves 1 foot or less building to 1 to 3 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 1 to 3 feet. 
.thursday...west winds around 10 knots. waves 1 foot or less. 

$$

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open lake forecast for lake huron
national weather service detroit/pontiac mi
403 am edt sun oct 4 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...high pressure, 30.30 inches, will quickly exit east of
the region tonight. low pressure of 29.62 inches then tracks east
across southern ontario tonight into sunday, intensifying to
around 29.44 inches as it tracks east across the james bay area
sunday night. this low will drive a cold front across the region
on sunday, resulting in south winds to start the day becoming
west and northwesterly throughout sunday afternoon and evening.
northwest winds increase to around 25 to 30 knots sunday night
into monday morning, with gale force gusts to 35 knots appearing
more likely.


lhz361-362-041615-
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-
403 am edt sun oct 4 2026

...gale watch in effect from this evening through monday
morning...

.today...south winds 20 to 25 knots becoming west 15 to 20 knots
in the afternoon. gusts to 30 knots. a chance of showers in the
morning. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tonight...northwest winds 20 to 25 knots with gusts to 35 knot
gales. waves 6 to 9 feet. waves occasionally around 12 feet. 
.monday...northwest winds 20 to 25 knots decreasing to 15 to
20 knots early in the afternoon. gusts to 35 knot gales. waves
6 to 9 feet. waves occasionally around 12 feet. 
.monday night...northwest winds 15 to 20 knots becoming light and
variable. waves 4 to 6 feet subsiding to 1 to 3 feet after
midnight. waves occasionally around 8 feet. 
.tuesday...south winds 5 to 10 knots increasing to 15 to 20 knots
with gusts to around 30 knots. waves 2 feet or less building to
5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...west winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots by midnight. waves 3 to
5 feet. 
.thursday...west winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet. 


$$

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lake st clair forecast
national weather service detroit/pontiac mi
403 am edt sun oct 4 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...high pressure, 30.30 inches, will quickly exit east of
the region tonight. low pressure of 29.62 inches then tracks east
across southern ontario tonight into sunday, intensifying to
around 29.44 inches as it tracks east across the james bay area
sunday night. this low will drive a cold front across the region
on sunday, resulting in south winds to start the day becoming
west and northwesterly throughout sunday afternoon and evening.
northwest winds increase to around 25 to 30 knots sunday night
into monday morning, with gale force gusts to 35 knots appearing
more likely.


lcz460-041615-
lake st clair-
403 am edt sun oct 4 2026

.today...light and variable winds becoming southwest 5 to 10 knots
in the late morning and afternoon. partly sunny in the morning then
clearing. waves 2 feet or less.
.tonight...west winds 10 to 15 knots becoming northwest 15 to 20
knots by midnight...then diminishing to 10 to 15 knots early in the
morning. mostly clear. waves 2 feet or less.
.monday...northwest winds 10 to 15 knots. sunny. waves 2 feet or
less.
.monday night...northwest winds 5 to 10 knots early in the evening
becoming light and variable. mostly clear. waves 2 feet or less.
.tuesday...northwest winds 5 to 10 knots becoming south 10 to 15
knots in the afternoon...then increasing to 15 to 20 knots in the
evening. clear. waves 2 feet or less.
.wednesday...west winds 15 to 20 knots. mostly clear. waves 1 to 3
feet.
.thursday...northwest winds 10 to 15 knots. mostly clear. waves 2
feet or less.

$$

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open lake forecast for lake huron
national weather service detroit/pontiac mi
403 am edt sun oct 4 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...high pressure, 30.30 inches, will quickly exit east of
the region tonight. low pressure of 29.62 inches then tracks east
across southern ontario tonight into sunday, intensifying to
around 29.44 inches as it tracks east across the james bay area
sunday night. this low will drive a cold front across the region
on sunday, resulting in south winds to start the day becoming
west and northwesterly throughout sunday afternoon and evening.
northwest winds increase to around 25 to 30 knots sunday night
into monday morning, with gale force gusts to 35 knots appearing
more likely.


lhz363-041615-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
403 am edt sun oct 4 2026

.today...southwest winds 15 to 20 knots with gusts to around
30 knots veering to the west late in the afternoon. a chance of
rain in the morning. waves 3 to 5 feet. 
.tonight...northwest winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late evening and
overnight. waves 5 to 7 feet. waves occasionally around 10 feet. 
.monday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
afternoon. waves 6 to 9 feet. waves occasionally around 12 feet. 
.monday night...northwest winds 10 to 15 knots  becoming light
and variable. waves 3 to 5 feet. 
.tuesday...light and variable winds becoming southwest 10 to
15 knots late in the morning...then becoming south 15 to 20 knots
with gusts to around 30 knots late in the afternoon becoming
southwest 20 to 25 knots with gusts to around 30 knots late in
the evening. waves 1 to 3 feet building to 4 to 6 feet late in
the afternoon. waves occasionally around 8 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 5 to 7 feet subsiding to 2 to 4 feet. waves
occasionally around 10 feet. 
.thursday...west winds 10 to 15 knots. waves 1 to 3 feet. 


$$

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open lake forecast for lake huron
national weather service detroit/pontiac mi
403 am edt sun oct 4 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...high pressure, 30.30 inches, will quickly exit east of
the region tonight. low pressure of 29.62 inches then tracks east
across southern ontario tonight into sunday, intensifying to
around 29.44 inches as it tracks east across the james bay area
sunday night. this low will drive a cold front across the region
on sunday, resulting in south winds to start the day becoming
west and northwesterly throughout sunday afternoon and evening.
northwest winds increase to around 25 to 30 knots sunday night
into monday morning, with gale force gusts to 35 knots appearing
more likely.


lhz462>464-041615-
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-
403 am edt sun oct 4 2026

.today...south winds 10 to 15 knots veering to the west late in
the afternoon. a chance of showers in the morning. waves 1 to
3 feet. 
.tonight...northwest winds 15 to 20 knots increasing to 20 to
25 knots early in the morning. waves 2 to 4 feet building to 5 to
7 feet in the late evening and overnight. waves occasionally
around 10 feet. 
.monday...northwest winds 20 to 25 knots decreasing to 15 to
20 knots in the late morning and afternoon. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.monday night...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and overnight. waves 3 to 5 feet. 
.tuesday...west winds 5 to 10 knots becoming southwest 10 to
15 knots late in the morning...then becoming south 15 to 20 knots
with gusts to around 30 knots late in the afternoon increasing to
20 to 25 knots with gusts to around 30 knots late in the evening.
waves 1 to 3 feet building to 3 to 5 feet late in the afternoon. 
.wednesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet . 
.thursday...west winds 10 to 15 knots. waves 1 to 3 feet. 


$$