fzus61 kbuf 211402
glflo 
expires:202608212100;;109954

open lake forecast for lake ontario
national weather service buffalo ny
1002 am 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 over southern quebec will slide across new england 
today, then into the canadian maritimes 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 about western quebec through 
monday, then wil eject northeastward into labrador on tuesday while 
a 30.1 inch high builds eastward across the ohio valley.


loz063>065-212100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt fri aug 21 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 211402
glflo 
expires:202608212100;;109953

open lake forecast for lake ontario
national weather service buffalo ny
1002 am 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 over southern quebec will slide across new england 
today, then into the canadian maritimes 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 about western quebec through 
monday, then wil eject northeastward into labrador on tuesday while 
a 30.1 inch high builds eastward across the ohio valley.


loz062-212100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt fri aug 21 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 211320
glfle 
expires:202608212015;;108937

open lake forecast for lake erie
national weather service cleveland oh
920 am 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 30.10 inches lingers over the region today. low 
pressure 29.90 inches moves into the great lakes region on 
saturday. the low will drag a cold front across the lake saturday 
night into sunday. high pressure 30.00 inches returns for the 
start of next week.


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-
920 am edt fri aug 21 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 211320
glfle 
expires:202608212015;;108935

open lake forecast for lake erie
national weather service cleveland oh
920 am 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 30.10 inches lingers over the region today. low 
pressure 29.90 inches moves into the great lakes region on 
saturday. the low will drag a cold front across the lake saturday 
night into sunday. high pressure 30.00 inches returns for the 
start of next week.


lez162>164-212015-
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-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
920 am edt fri aug 21 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 211320
glfle 
expires:202608212015;;108936

open lake forecast for lake erie
national weather service cleveland oh
920 am 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 30.10 inches lingers over the region today. low 
pressure 29.90 inches moves into the great lakes region on 
saturday. the low will drag a cold front across the lake saturday 
night into sunday. high pressure 30.00 inches returns for the 
start of next week.


lez165>167-212015-
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-
920 am edt fri aug 21 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 211358
glflh 
expires:202608212200;;109716

open lake forecast for lake huron
national weather service detroit/pontiac mi
958 am 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...high pressure, 30.00 inches, maintains influence
across the central and eastern great lakes today. the next low
pressure system then arrives saturday, dragging a cold front
across the area and increasing shower and thunderstorm chances.
post-frontal northwest flow leads to gusty winds sunday.


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-
958 am edt fri aug 21 2026

.rest of today...southeast winds 5 to 10 knots. waves 1 to
3 feet. 
.tonight...southeast winds 10 to 15 knots. a chance of showers
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 afternoon. a chance of 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...northwest winds 5 to 10 knots increasing to
15 to 20 knots in the late evening and overnight. showers likely.
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 with gusts to around
30 knots increasing to 20 to 25 knots with gusts to around
30 knots late in the morning...then decreasing to 15 to 20 knots
with gusts to around 30 knots late in the afternoon. a chance of
waterspouts. showers likely in the morning. a chance of showers.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.monday...northwest winds 15 to 20 knots decreasing to 5 to
10 knots. a chance of showers early in the morning. waves 3 to
5 feet subsiding to 1 to 3 feet by midnight. 
.tuesday...west winds 5 to 10 knots backing to the south early in
the evening...then increasing to 10 to 15 knots by midnight.
waves 2 feet or less. 


$$

fzus63 kdtx 211358
glflh 
expires:202608212200;;109715

open lake forecast for lake huron
national weather service detroit/pontiac mi
958 am 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...high pressure, 30.00 inches, maintains influence
across the central and eastern great lakes today. the next low
pressure system then arrives saturday, dragging a cold front
across the area and increasing shower and thunderstorm chances.
post-frontal northwest flow leads to gusty winds sunday.


lhz361>363-212200-
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-
958 am edt fri aug 21 2026

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


$$

fzus63 kdtx 211358
glfsc 
expires:202608212200;;109718

lake st clair forecast
national weather service detroit/pontiac mi
958 am 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...high pressure, 30.00 inches, maintains influence
across the central and eastern great lakes today. the next low
pressure system then arrives saturday, dragging a cold front
across the area and increasing shower and thunderstorm chances.
post-frontal northwest flow leads to gusty winds sunday.


lcz460-212200-
lake st clair-
958 am edt fri aug 21 2026

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

$$