fzus61 kbuf 180803
glflo 
expires:202607181500;;165129

open lake forecast for lake ontario
national weather service buffalo ny
403 am edt sat jul 18 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 ridge of high pressure will slide east of the lake this 
evening to the atlantic shoreline and in its wake a warm front will 
lift northeastward across the lake tonight through tomorrow morning. 
following this warm front a cold front will slice across the lake 
saturday afternoon and evening with this front attached to a 29.4 
inch area of low pressure crossing southern canada. a 30.0 inch area 
of high pressure will build across the great lakes region from west 
to east sunday into monday, followed by another cold front tuesday 
night with this front attached to a 29.5 inch area of low pressure 
near james bay. a secondary cold front will cross the lake 
wednesday.


loz062-181500-
lake ontario open waters from the niagara river to hamlin beach-
403 am edt sat jul 18 2026

.today...southwest winds 15 to 20 knots. patchy smoke early. a
chance of showers and thunderstorms this morning, then showers
with a chance of thunderstorms this afternoon. some thunderstorms
may produce gusty winds this afternoon. waves 1 to 3 feet
building to 3 to 5 feet. 
.tonight...west winds 15 to 20 knots becoming north 10 to
15 knots. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.sunday...north winds 5 to 15 knots becoming west. waves 1 to
3 feet subsiding to 1 foot or less. 
.sunday night...west winds 10 knots or less. waves 1 foot or
less. 
.monday...southwest winds 10 knots or less becoming south 10 to
15 knots. a chance of showers monday night. waves 2 feet or less.
.tuesday...south winds 15 to 20 knots becoming west. showers with
a chance of thunderstorms. waves 2 to 4 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest. a
chance of showers. waves 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 180803
glflo 
expires:202607181500;;165130

open lake forecast for lake ontario
national weather service buffalo ny
403 am edt sat jul 18 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 ridge of high pressure will slide east of the lake this 
evening to the atlantic shoreline and in its wake a warm front will 
lift northeastward across the lake tonight through tomorrow morning. 
following this warm front a cold front will slice across the lake 
saturday afternoon and evening with this front attached to a 29.4 
inch area of low pressure crossing southern canada. a 30.0 inch area 
of high pressure will build across the great lakes region from west 
to east sunday into monday, followed by another cold front tuesday 
night with this front attached to a 29.5 inch area of low pressure 
near james bay. a secondary cold front will cross the lake 
wednesday.


loz063>065-181500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 am edt sat jul 18 2026

.today...south winds 15 to 20 knots becoming southwest. showers
likely early, then showers with a chance of thunderstorms from
late morning on. areas of smoke. some thunderstorms may produce
gusty winds this afternoon. waves 1 to 3 feet building to 3 to
5 feet. 
.tonight...west winds 15 to 20 knots becoming north. a chance of
showers and thunderstorms early. some thunderstorms may produce
gusty winds early. waves 3 to 6 feet. 
.sunday...north winds 15 to 20 knots becoming west 5 to 15 knots.
waves 2 to 4 feet subsiding to 1 to 2 feet. 
.sunday night...west winds 5 to 15 knots. waves 1 to 2 feet. 
.monday...southwest winds 5 to 15 knots becoming south and
increasing to 15 to 25 knots. a chance of showers monday night.
waves 1 foot or less building to 3 to 5 feet. 
.tuesday...south winds 15 to 25 knots becoming west. showers with
a chance of thunderstorms. waves 3 to 6 feet subsiding to 3 to
5 feet. 
.wednesday...west winds 15 to 20 knots. a chance of showers and
thunderstorms. waves 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 180800
glfle 
expires:202607181400;;164982

open lake forecast for lake erie
national weather service cleveland oh
400 am edt sat jul 18 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...
low pressure 29.70 inches enters the region as a cold front moves 
southeast across lake erie into tonight. as the cold front 
exits, high pressure 30.00 inches will briefly enter the region 
sunday and monday. a warm front will lift into the region 
monday and will be quickly followed by another cold front on
tuesday. a trough averaging 29.80 inches will linger across the 
eastern great lakes on wednesday.


lez162-163-181400-
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 sat jul 18 2026

.today...southwest winds 15 to 20 knots becoming west. a chance
of showers and thunderstorms early this afternoon. showers likely
with a chance of thunderstorms late. waves 1 to 3 feet. 
.tonight...northwest winds 15 to 20 knots becoming north. a
chance of showers and thunderstorms early. waves 1 to 3 feet
building to 2 to 4 feet. 
.sunday...northeast winds 5 to 15 knots becoming east. waves 1 to
3 feet subsiding to 1 foot or less. 
.sunday night...east winds 5 to 10 knots becoming south. waves
1 foot or less. 
.monday...south winds 5 to 15 knots becoming southwest 15 to
20 knots. showers likely monday night. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 20 knots becoming northwest.
showers likely with a chance of thunderstorms during the day.
waves 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. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 180800
glfle 
expires:202607181400;;164983

open lake forecast for lake erie
national weather service cleveland oh
400 am edt sat jul 18 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...
low pressure 29.70 inches enters the region as a cold front moves 
southeast across lake erie into tonight. as the cold front 
exits, high pressure 30.00 inches will briefly enter the region 
sunday and monday. a warm front will lift into the region 
monday and will be quickly followed by another cold front on
tuesday. a trough averaging 29.80 inches will linger across the 
eastern great lakes on wednesday.


lez164-165-181400-
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-
400 am edt sat jul 18 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 180800
glfle 
expires:202607181400;;164984

open lake forecast for lake erie
national weather service cleveland oh
400 am edt sat jul 18 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...
low pressure 29.70 inches enters the region as a cold front moves 
southeast across lake erie into tonight. as the cold front 
exits, high pressure 30.00 inches will briefly enter the region 
sunday and monday. a warm front will lift into the region 
monday and will be quickly followed by another cold front on
tuesday. a trough averaging 29.80 inches will linger across the 
eastern great lakes on wednesday.


lez061-166>169-181400-
ripley to buffalo ny extending from 5nm 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-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 sat jul 18 2026

.today...southwest winds 15 to 25 knots becoming west. smoke
early. a chance of showers and thunderstorms this morning, then
showers with a chance of thunderstorms this afternoon. waves 3 to
6 feet building to 4 to 7 feet. waves occasionally around 9 feet.
.tonight...northwest winds 15 to 20 knots becoming north. a
chance of showers and thunderstorms early. waves 3 to 6 feet. 
.sunday...north winds 5 to 15 knots. waves 2 to 4 feet subsiding
to 1 to 3 feet. 
.sunday night...west winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.monday...southwest winds 10 knots or less becoming south and
increasing to 15 to 20 knots. showers likely monday night. waves
1 foot or less building to 3 to 5 feet. 
.tuesday...southwest winds 15 to 25 knots becoming northwest.
showers with a chance of thunderstorms during the day, then a
chance of showers and thunderstorms tuesday night. waves 4 to
7 feet subsiding to 3 to 6 feet. waves occasionally around
9 feet. 
.wednesday...northwest winds 15 to 20 knots diminishing to 10 to
15 knots. waves 3 to 5 feet subsiding to 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 180752
glfsc 
expires:202607181600;;164785

lake st clair forecast
national weather service detroit/pontiac mi
352 am edt sat jul 18 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...will get a brief break from canadian wildfire smoke as
southwestly flow pushes it northeast out of the area. a low
pressure system tracking through the northern lakes region today
will drop a cold front through the eastern lakes which will bring
some showers and thunderstorms this morning and afternoon. high
pressure will then build into the region for sunday.


lcz460-181600-
lake st clair-
352 am edt sat jul 18 2026

.today...west winds 15 to 20 knots. partly sunny. a chance of
showers and thunderstorms early in the afternoon. showers likely and
a chance of thunderstorms late in the afternoon. waves 1 to 3 feet.
.tonight...north winds 15 to 20 knots diminishing to 10 to 15 knots
early in the morning. partly cloudy in the evening then clearing.
patchy smoke after midnight. waves 1 to 3 feet.
.sunday...north winds 10 to 15 knots becoming northeast 5 to 10
knots in the late morning and afternoon. mostly sunny. patchy smoke
early in the morning. waves 2 feet or less.
.sunday night...east winds 5 to 10 knots becoming light and
variable. mostly clear. waves 2 feet or less.
.monday...south winds 5 to 10 knots increasing to 15 to 20 knots.
mostly sunny...then mostly cloudy with a chance of light showers in
the evening. waves 2 feet or less.
.tuesday...northwest winds 15 to 20 knots. showers and a chance of
thunderstorms. waves 1 to 3 feet.
.wednesday...northwest winds 20 to 25 knots. mostly clear. waves 1
to 3 feet.

$$

fzus63 kdtx 180750
glflh 
expires:202607181600;;164735

open lake forecast for lake huron
national weather service detroit/pontiac mi
350 am edt sat jul 18 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...will get a brief break from canadian wildfire smoke as
southwestly flow pushes it northeast out of the area. a low
pressure system tracking through the northern lakes region today
will drop a cold front through the eastern lakes which will bring
some showers and thunderstorms this morning and afternoon. high
pressure will then build into the region for sunday.


lhz362-363-181600-
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-
350 am edt sat jul 18 2026

.today...southwest winds 15 to 20 knots veering to the northwest
with gusts to around 30 knots early in the afternoon...then
increasing to 20 to 25 knots with gusts to 35 knot gales late in
the afternoon. a chance of showers in the morning. areas of smoke
in the morning...then patchy smoke in the afternoon. waves 3 to
5 feet building to 6 to 9 feet in the afternoon. waves
occasionally around 12 feet. 
.tonight...north winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots. patchy smoke. waves 5 to
7 feet. waves occasionally around 10 feet. 
.sunday...north winds 5 to 10 knots early in the morning becoming
light and variable. waves 2 to 4 feet subsiding to 1 to 3 feet in
the late morning and afternoon. 
.sunday night...light and variable winds becoming southeast 5 to
10 knots by midnight...then becoming south 10 to 15 knots after
midnight. waves 2 feet or less. 
.monday...south winds 10 to 15 knots with gusts to around
30 knots increasing to 20 to 25 knots with gusts to around
30 knots late in the afternoon. a chance of showers late in the
morning. rain showers and a chance of thunderstorms late in the
afternoon...then showers likely late in the evening. waves 1 to
3 feet building to 5 to 7 feet. waves occasionally around
10 feet. 
.tuesday...southwest winds 15 to 20 knots becoming west 10 to
15 knots in the late morning and early afternoon...then
increasing to 20 to 25 knots early in the evening becoming
northwest to 30 knots by midnight. gusts to 35 knot gales.
showers likely early in the morning...then a chance of showers.
waves 6 to 9 feet building to 10 to 14 feet . waves occasionally
around 18 feet. 
.wednesday...northwest winds to 30 knots decreasing to 15 to
20 knots. gusts to 35 knot gales. a chance of showers early in
the morning. waves 8 to 12 feet. waves occasionally around
15 feet. 


$$

fzus63 kdtx 180750
glflh 
expires:202607181600;;164734

open lake forecast for lake huron
national weather service detroit/pontiac mi
350 am edt sat jul 18 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...will get a brief break from canadian wildfire smoke as
southwestly flow pushes it northeast out of the area. a low
pressure system tracking through the northern lakes region today
will drop a cold front through the eastern lakes which will bring
some showers and thunderstorms this morning and afternoon. high
pressure will then build into the region for sunday.


lhz361-181600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
350 am edt sat jul 18 2026

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


$$

fzus63 kdtx 180750
glflh 
expires:202607181600;;164736

open lake forecast for lake huron
national weather service detroit/pontiac mi
350 am edt sat jul 18 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...will get a brief break from canadian wildfire smoke as
southwestly flow pushes it northeast out of the area. a low
pressure system tracking through the northern lakes region today
will drop a cold front through the eastern lakes which will bring
some showers and thunderstorms this morning and afternoon. high
pressure will then build into the region for sunday.


lhz462>464-181600-
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-
350 am edt sat jul 18 2026

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


$$