fzus61 kbuf 200803
glflo 
expires:202607201500;;278422

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt mon jul 20 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 30.0 inch area of high pressure will build across the great lakes 
today, followed by a warm front crossing the lake tonight and 
another cold front tuesday night, with these fronts attached to a 
29.4 inch area of low pressure near james bay. a secondary cold 
front will cross the lake wednesday, with a 30.1 inch high building 
across the lower great lakes region wednesday night through friday.


loz062-201500-
lake ontario open waters from the niagara river to hamlin beach-
402 am edt mon jul 20 2026

.today...light and variable winds becoming east 5 to 10 knots.
waves 1 foot or less. 
.tonight...southeast winds 5 to 15 knots becoming south. waves
2 feet or less. 
.tuesday...south winds 15 to 20 knots becoming southwest. showers
with a chance of thunderstorms. waves 1 to 3 feet building to
3 to 5 feet, then subsiding to 2 to 4 feet. 
.tuesday night...southwest winds 15 to 20 knots becoming west.
showers with a chance of thunderstorms in the evening, then a
chance of showers overnight. waves 2 to 4 feet building to 3 to
6 feet. 
.wednesday...west winds 15 to 25 knots becoming northwest and
diminishing to 10 to 15 knots. waves 4 to 7 feet subsiding to
2 to 4 feet. waves occasionally around 9 feet. 
.thursday...west winds 5 to 10 knots becoming southwest. waves
2 feet or less. 
.friday...southwest winds 10 knots or less. waves 1 foot or less.

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 200803
glflo 
expires:202607201500;;278423

open lake forecast for lake ontario
national weather service buffalo ny
402 am edt mon jul 20 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 30.0 inch area of high pressure will build across the great lakes 
today, followed by a warm front crossing the lake tonight and 
another cold front tuesday night, with these fronts attached to a 
29.4 inch area of low pressure near james bay. a secondary cold 
front will cross the lake wednesday, with a 30.1 inch high building 
across the lower great lakes region wednesday night through friday.


loz063>065-201500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
402 am edt mon jul 20 2026

.today...west winds 10 knots or less becoming east. waves 1 foot
or less. 
.tonight...east winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 foot or less building to 2 to 4 feet. 
.tuesday...south winds 15 to 20 knots. showers with a chance of
thunderstorms. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.tuesday night...southwest winds 10 to 15 knots becoming west
15 to 20 knots. showers with a chance of thunderstorms. waves
1 to 3 feet building to 3 to 6 feet. 
.wednesday...west winds 15 to 25 knots. showers likely during the
day. waves 5 to 8 feet subsiding to 3 to 5 feet. waves
occasionally around 10 feet. 
.thursday...west winds 5 to 15 knots becoming southwest. waves
1 to 3 feet subsiding to 1 foot or less. 
.friday...southwest winds 10 knots or less becoming south. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 200741
glfle 
expires:202607201415;;277950

open lake forecast for lake erie
national weather service cleveland oh
341 am edt mon jul 20 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 will drift east away from the region
by this evening, allowing a warm front to lift across the lake
late tonight into early tuesday. a cold front will move southeast
across the area tuesday afternoon into tuesday night with a trough
averaging 29.80 inches lingering over the eastern great lakes
through wednesday. high pressure 30.10 inches will build east
thursday and friday.


lez162>164-201415-
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-
341 am edt mon jul 20 2026

.today...south winds 10 knots or less becoming southeast. patchy
smoke. waves 1 foot or less. 
.tonight...south winds 5 to 15 knots becoming southwest 15 to
20 knots. patchy smoke early. a chance of showers and
thunderstorms after midnight. showers likely with a chance of
thunderstorms late. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 25 knots becoming west. a chance
of showers and thunderstorms in the morning, then showers likely
with a chance of thunderstorms in the afternoon. waves 2 to
4 feet building to 3 to 5 feet, then subsiding to 2 to 4 feet. 
.tuesday night...west winds 15 to 20 knots becoming northwest. a
chance of showers and thunderstorms in the evening, then a chance
of showers overnight. waves 2 to 4 feet. 
.wednesday...northwest winds 15 to 20 knots becoming north and
diminishing to 5 to 10 knots. waves 2 to 4 feet subsiding to 1 to
3 feet. 
.thursday...north winds 10 knots or less becoming south. waves
1 foot or less. 
.friday...southwest winds less than 10 knots becoming south.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 200741
glfle 
expires:202607201415;;277951

open lake forecast for lake erie
national weather service cleveland oh
341 am edt mon jul 20 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 will drift east away from the region
by this evening, allowing a warm front to lift across the lake
late tonight into early tuesday. a cold front will move southeast
across the area tuesday afternoon into tuesday night with a trough
averaging 29.80 inches lingering over the eastern great lakes
through wednesday. high pressure 30.10 inches will build east
thursday and friday.


lez165>167-201415-
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-
341 am edt mon jul 20 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 200741
glfle 
expires:202607201415;;277952

open lake forecast for lake erie
national weather service cleveland oh
341 am edt mon jul 20 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 will drift east away from the region
by this evening, allowing a warm front to lift across the lake
late tonight into early tuesday. a cold front will move southeast
across the area tuesday afternoon into tuesday night with a trough
averaging 29.80 inches lingering over the eastern great lakes
through wednesday. high pressure 30.10 inches will build east
thursday and friday.


lez061-168-169-201415-
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-
341 am edt mon jul 20 2026

.today...southwest winds 10 knots or less becoming west. patchy
smoke. waves 1 foot or less. 
.tonight...south winds 10 knots or less increasing to 15 to
20 knots. patchy smoke early. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 25 knots. showers likely with a
chance of thunderstorms. waves 3 to 6 feet building to 4 to
7 feet. waves occasionally around 9 feet. 
.tuesday night...west winds 15 to 20 knots becoming northwest.
showers likely with a chance of thunderstorms in the evening,
then showers likely overnight. waves 3 to 6 feet. 
.wednesday...northwest winds 15 to 20 knots diminishing to 5 to
10 knots. a chance of showers during the day. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.thursday...northwest winds 10 knots or less becoming south.
waves 2 feet or less. 
.friday...south winds less than 10 knots becoming southeast.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 200759
glfsc 
expires:202607201600;;278243

lake st clair forecast
national weather service detroit/pontiac mi
359 am edt mon jul 20 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 influence wanes across the central great
lakes today with dry initial conditions, then a cold front passes
through tonight into tuesday. this leads to periods of showers
and thunderstorms. wet weather could persist on tuesday before
high pressure from alberta/manitoba builds in by tuesday evening
with a drying effect.


lcz460-201600-
lake st clair-
359 am edt mon jul 20 2026

...small craft advisory in effect from late tonight through
tuesday evening...

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

$$

fzus63 kdtx 200758
glflh 
expires:202607201600;;278232

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 am edt mon jul 20 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 influence wanes across the central great
lakes today with dry initial conditions, then a cold front passes
through tonight into tuesday. this leads to periods of showers
and thunderstorms. wet weather could persist on tuesday before
high pressure from alberta/manitoba builds in by tuesday evening
with a drying effect.


lhz462>464-201600-
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-
358 am edt mon jul 20 2026

.today...light and variable winds becoming south 10 to 15 knots.
patchy smoke. waves 1 to 3 feet. 
.tonight...south winds 10 to 15 knots increasing to 20 to
25 knots with gusts to around 30 knots. patchy smoke. a chance of
showers and thunderstorms after midnight. waves 3 to 5 feet
building to 5 to 7 feet early in the morning. waves occasionally
around 10 feet. 
.tuesday...southwest winds 15 to 20 knots with gusts to around
30 knots becoming west 10 to 15 knots in the late morning and
afternoon. a chance of showers in the morning...then a chance of
showers and thunderstorms in the afternoon. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.tuesday night...northwest winds 15 to 20 knots increasing to
20 to 25 knots in the late evening and overnight. gusts to
30 knots. a chance of showers and thunderstorms in the evening.
waves 8 to 12 feet. waves occasionally around 15 feet. 
.wednesday...northwest winds 20 to 25 knots with gusts to around
30 knots becoming north 10 to 15 knots late in the evening. waves
8 to 12 feet. waves occasionally around 15 feet. 
.thursday...west winds 5 to 10 knots early in the morning
becoming light and variable...then becoming south 5 to 10 knots .
waves 3 to 5 feet subsiding to 1 to 3 feet. 
.friday...southwest winds 5 to 10 knots backing to the south .
waves 2 feet or less. 


$$

fzus63 kdtx 200758
glflh 
expires:202607201600;;278231

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 am edt mon jul 20 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 influence wanes across the central great
lakes today with dry initial conditions, then a cold front passes
through tonight into tuesday. this leads to periods of showers
and thunderstorms. wet weather could persist on tuesday before
high pressure from alberta/manitoba builds in by tuesday evening
with a drying effect.


lhz362-363-201600-
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-
358 am edt mon jul 20 2026

.today...southwest winds 5 to 10 knots becoming south 15 to
20 knots with gusts to around 30 knots. patchy smoke in the
afternoon. waves 1 to 3 feet building to 5 to 7 feet. waves
occasionally around 10 feet. 
.tonight...south winds 15 to 20 knots increasing to 20 to
25 knots after midnight. gusts to 30 knots. a chance of showers
and thunderstorms. patchy smoke. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.tuesday...southwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots in the late morning and
early afternoon...then becoming west 15 to 20 knots with gusts to
around 30 knots early in the afternoon. a chance of showers.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.tuesday night...northwest winds to 30 knots. waves 10 to
14 feet. waves occasionally around 18 feet. 
.wednesday...northwest winds to 30 knots decreasing to 10 to
15 knots. waves 8 to 12 feet. waves occasionally around 15 feet. 
.thursday...west winds 5 to 10 knots backing to the south . waves
3 to 5 feet subsiding to 1 to 3 feet. 
.friday...southwest winds 5 to 10 knots backing to the south .
waves 2 feet or less. 


$$

fzus63 kdtx 200758
glflh 
expires:202607201600;;278230

open lake forecast for lake huron
national weather service detroit/pontiac mi
358 am edt mon jul 20 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 influence wanes across the central great
lakes today with dry initial conditions, then a cold front passes
through tonight into tuesday. this leads to periods of showers
and thunderstorms. wet weather could persist on tuesday before
high pressure from alberta/manitoba builds in by tuesday evening
with a drying effect.


lhz361-201600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
358 am edt mon jul 20 2026

.today...south winds 10 to 15 knots. patchy smoke. waves 1 to
3 feet building to 3 to 5 feet late in the afternoon. 
.tonight...south winds 10 to 15 knots increasing to 15 to
20 knots with gusts to around 30 knots in the late evening and
overnight. patchy smoke in the evening. showers likely and a
chance of thunderstorms in the evening...then showers and a
chance of thunderstorms after midnight. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.tuesday...west winds 15 to 20 knots with gusts to around
30 knots increasing to 20 to 25 knots with gusts to around
30 knots early in the afternoon. waves 4 to 6 feet building to
6 to 9 feet early in the afternoon. waves occasionally around
12 feet. 
.tuesday night...northwest winds to 30 knots decreasing to 20 to
25 knots in the late evening and overnight. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.wednesday...northwest winds to 30 knots decreasing to 10 to
15 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.thursday...west winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and early afternoon...then becoming southwest
5 to 10 knots . waves 1 to 3 feet. 
.friday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots. waves 2 feet or less. 


$$