fzus61 kbuf 041402
glflo 
expires:202609042100;;891996

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri sep 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 high pressure ridge averaging 30.1 inches builds gradually from 
northern ontario through monday. during monday night, a cold front 
will sweep southward across lake ontario. behind the front, another 
ridge averaging 30.1 inches builds from near james bay through 
tuesday. on wednesday, the ridge should exit southeastward and allow 
a warm front to sweep northeastward across lake ontario.


loz062-042100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt fri sep 4 2026

.this afternoon...northwest winds 10 knots or less becoming west.
waves 1 foot or less. 
.tonight...west winds 5 to 10 knots becoming northeast. waves
1 foot or less. 
.saturday...northeast winds around 10 knots becoming light and
variable. waves 1 foot or less. 
.saturday night...light and variable winds becoming northeast
around 10 knots. waves 2 feet or less. 
.sunday...northeast winds 10 to 15 knots becoming light and
variable. waves 2 feet or less. 
.monday...light and variable winds. waves 1 foot or less. 
.tuesday...northeast winds 5 to 15 knots becoming southeast. a
chance of showers tuesday night. waves 2 feet or less. 

$$

fzus61 kbuf 041402
glflo 
expires:202609042100;;891997

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri sep 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 high pressure ridge averaging 30.1 inches builds gradually from 
northern ontario through monday. during monday night, a cold front 
will sweep southward across lake ontario. behind the front, another 
ridge averaging 30.1 inches builds from near james bay through 
tuesday. on wednesday, the ridge should exit southeastward and allow 
a warm front to sweep northeastward across lake ontario.


loz063>065-042100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt fri sep 4 2026

.this afternoon...northwest winds 10 knots or less becoming west.
waves 1 foot or less. 
.tonight...west winds 5 to 10 knots becoming northeast. waves
2 feet or less. 
.saturday...north winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...north winds 5 to 15 knots becoming northeast.
waves 1 to 3 feet. 
.sunday...northeast winds 5 to 15 knots diminishing to less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.monday...northwest winds 10 knots or less. waves 1 foot or less.
.tuesday...northeast winds 5 to 15 knots becoming southeast.
waves 1 foot or less. 

$$

fzus61 kcle 041948 cca
glfle 
expires:202609050230;;907710

open lake forecast for lake erie...corrected
national weather service cleveland oh
348 pm edt fri sep 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 frontal boundary located south of lake erie will continue to
move south away from the area tonight. high pressure 30.20 inches
builds into the great lakes region over the weekend through early
next week.


lez162-163-050230-
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-
348 pm edt fri sep 4 2026

.tonight...east winds 5 to 10 knots becoming northeast. a chance
of showers and thunderstorms. waves 1 foot or less. 
.saturday...northeast winds 10 to 15 knots. a chance of showers
in the morning, then a slight chance of showers early in the
afternoon. waves 1 to 3 feet. 
.saturday night...northeast winds 10 to 15 knots. waves 1 to
3 feet. 
.sunday...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet. 
.sunday night...east winds 10 to 15 knots becoming northeast.
waves 1 to 3 feet. 
.monday...east winds 5 to 10 knots becoming southeast. waves
2 feet or less. 
.tuesday...southeast winds 5 to 15 knots becoming south. waves
2 feet or less. 
.wednesday...southwest winds 15 to 20 knots becoming west. a
chance of showers wednesday night. waves 1 to 3 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 041948 cca
glfle 
expires:202609050230;;907711

open lake forecast for lake erie...corrected
national weather service cleveland oh
348 pm edt fri sep 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 frontal boundary located south of lake erie will continue to
move south away from the area tonight. high pressure 30.20 inches
builds into the great lakes region over the weekend through early
next week.


lez164>167-050230-
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-
348 pm edt fri sep 4 2026

.tonight...north winds 5 to 10 knots becoming northeast. a chance
of showers and thunderstorms through the early overnight, then a
chance of showers with a slight chance of thunderstorms late.
waves 1 foot or less. 
.saturday...northeast winds 10 to 15 knots. a chance of showers
early, then a slight chance of showers late in the morning. waves
1 to 3 feet. 
.saturday night...northeast winds 10 to 15 knots. waves 2 to
3 feet. 
.sunday...northeast winds 10 to 15 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.sunday night...northeast winds 15 to 20 knots becoming east 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...east winds 5 to 15 knots becoming southeast. waves
2 feet or less. 
.tuesday...southeast winds 10 knots or less becoming south and
increasing to 15 to 20 knots. waves 1 to 3 feet. 
.wednesday...southwest winds 15 to 20 knots becoming west. a
chance of showers wednesday night. waves 2 to 4 feet building to
3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 041948 cca
glfle 
expires:202609050230;;907712

open lake forecast for lake erie...corrected
national weather service cleveland oh
348 pm edt fri sep 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 frontal boundary located south of lake erie will continue to
move south away from the area tonight. high pressure 30.20 inches
builds into the great lakes region over the weekend through early
next week.


lez061-168-169-050230-
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-
348 pm edt fri sep 4 2026

.tonight...northwest winds 10 knots or less becoming northeast. a
slight chance of showers and thunderstorms this evening, then a
slight chance of showers after midnight. waves 1 foot or less. 
.saturday...northeast winds 5 to 10 knots. waves 1 to 3 feet. 
.saturday night...northeast winds 5 to 10 knots. waves 1 to
3 feet. 
.sunday...northeast winds 5 to 15 knots. waves 1 to 3 feet. 
.sunday night...northeast winds 5 to 15 knots becoming east.
waves 1 to 3 feet subsiding to 1 foot or less. 
.monday...east winds 10 knots or less becoming southeast. waves
1 foot or less. 
.tuesday...southeast winds 10 knots or less becoming south 10 to
15 knots. waves 2 feet or less. 
.wednesday...southwest winds 15 to 25 knots becoming west. a
chance of showers. waves 1 to 3 feet building to 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 041903
glflh 
expires:202609050315;;906060

open lake forecast for lake huron
national weather service detroit/pontiac mi
303 pm edt fri sep 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...a lingering chance for showers and thunderstorms
through tonight as a frontal boundary slowly sags south across
far lower michigan. a large area of high pressure anchored over
ontario will then bring a stretch of drier conditions this
weekend.


lhz463-464-050315-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
303 pm edt fri sep 4 2026

.tonight...northeast winds 5 to 10 knots. waves 2 feet or less. 
.saturday...northeast winds 5 to 10 knots becoming north 10 to
15 knots late in the afternoon. waves 2 feet or less. 
.saturday night...north winds 10 to 15 knots becoming northeast
5 to 10 knots after midnight. waves 1 to 3 feet. 
.sunday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.sunday night...north winds 10 to 15 knots becoming northeast
5 to 10 knots by midnight...then veering to the east after
midnight. waves 2 feet or less. 
.monday...light and variable winds becoming east 5 to 10 knots
late in the evening. waves 2 feet or less. 
.tuesday...southeast winds 5 to 10 knots becoming south 15 to
20 knots. a chance of. waves 1 to 3 feet building to 2 to 4 feet
by midnight. 
.wednesday...south winds 10 to 15 knots becoming southwest 15 to
20 knots until early evening...then veering to the west by
midnight. a chance of showers until afternoon. waves 2 to 4 feet
subsiding to 1 to 3 feet by midnight. 


$$

fzus63 kdtx 041903
glfsc 
expires:202609050315;;906066

lake st clair forecast
national weather service detroit/pontiac mi
303 pm edt fri sep 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...a lingering chance for showers and thunderstorms
through tonight as a frontal boundary slowly sags south across
far lower michigan. a large area of high pressure anchored over
ontario will then bring a stretch of drier conditions this
weekend.


lcz460-050315-
lake st clair-
303 pm edt fri sep 4 2026

.tonight...northeast winds 5 to 10 knots. partly cloudy this evening
becoming mostly cloudy. a chance of showers and thunderstorms early
in the evening. a chance of light showers early in the morning.
waves 2 feet or less.
.saturday...northeast winds 10 to 15 knots diminishing to 5 to 10
knots in the late morning and early afternoon...then increasing to
10 to 15 knots late in the afternoon. partly sunny. a chance of
light showers early in the morning. waves 2 feet or less.
.saturday night...north winds 15 to 20 knots becoming northeast 10
to 15 knots after midnight. mostly clear. waves 2 feet or less.
.sunday...northeast winds 5 to 10 knots. mostly sunny. waves 2 feet
or less.
.sunday night...northeast winds 5 to 10 knots. mostly clear. waves 2
feet or less.
.monday...east winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.tuesday...southeast winds 10 to 15 knots. partly cloudy. waves 2
feet or less.
.wednesday...west winds 15 to 20 knots. partly cloudy. waves 1 to 3
feet.

$$

fzus63 kdtx 041903
glflh 
expires:202609050315;;906058

open lake forecast for lake huron
national weather service detroit/pontiac mi
303 pm edt fri sep 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...a lingering chance for showers and thunderstorms
through tonight as a frontal boundary slowly sags south across
far lower michigan. a large area of high pressure anchored over
ontario will then bring a stretch of drier conditions this
weekend.


lhz361-362-050315-
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-
303 pm edt fri sep 4 2026

.tonight...light and variable winds becoming northeast 5 to
10 knots. waves 2 feet or less. 
.saturday...northeast winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.saturday night...light and variable winds. waves 2 feet or less.
.sunday...light and variable winds. waves 2 feet or less. 
.sunday night...light and variable winds. waves 2 feet or less. 
.monday...light and variable winds becoming southeast 5 to
10 knots late in the evening. waves 2 feet or less. 
.tuesday...southeast winds 5 to 10 knots increasing to 15 to
20 knots. a chance of showers. rain showers likely by midnight.
waves 1 to 3 feet building to 2 to 4 feet . 
.wednesday...south winds 15 to 20 knots with gusts to around
30 knots veering to the west with gusts to around 30 knots .
showers likely early in the morning. a chance of showers in the
late morning and early afternoon. waves 3 to 5 feet. 


$$

fzus63 kdtx 041903
glflh 
expires:202609050315;;906059

open lake forecast for lake huron
national weather service detroit/pontiac mi
303 pm edt fri sep 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...a lingering chance for showers and thunderstorms
through tonight as a frontal boundary slowly sags south across
far lower michigan. a large area of high pressure anchored over
ontario will then bring a stretch of drier conditions this
weekend.


lhz363-462-050315-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
303 pm edt fri sep 4 2026

.tonight...northeast winds 5 to 10 knots. waves 2 feet or less. 
.saturday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...northeast winds 5 to 10 knots. waves 2 feet or
less. 
.sunday...northeast winds 5 to 10 knots until late afternoon
becoming light and variable. waves 2 feet or less. 
.sunday night...light and variable winds. waves 2 feet or less. 
.monday...light and variable winds becoming southeast 5 to
10 knots late in the evening. waves 2 feet or less. 
.tuesday...southeast winds 5 to 10 knots becoming south 15 to
20 knots. a chance of showers by midnight. waves 1 to 3 feet
building to 2 to 4 feet by midnight. 
.wednesday...southwest winds 15 to 20 knots with gusts to around
30 knots veering to the west by midnight. a chance of showers
until afternoon. waves 3 to 5 feet. 


$$

fzus63 kmkx 041937
glflm 
expires:202609050315;;907346

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
237 pm cdt fri sep 4 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

light winds over lake michigan will shift east northeasterly 
tonight with the slow passage of a cold front. areas of dense fog
may form over central and southern lake michigan after the frontal
passage and continue through saturday morning. as high pressure 
around 30.1 inches builds into the northern great lakes from 
ontario, modest northeast winds will develop for saturday and 
saturday evening for central and southern lake michigan. light and
variable winds are then expected on sunday and monday as the high
slowly moves from the northern great lakes to the lower great 
lakes.


lmz261-362-364-366-563-565-567-868-050315-
lake michigan from seul choix point to rock island passage 5 nm
offshore to mid lake-
lake michigan south of a line from seul choix point to the
mackinac bridge and north of a line from charlevoix mi to south
fox island 5 nm offshore-
lake michigan from charlevoix to point betsie mi 5 nm offshore to
mid lake-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
lake michigan from rock island passage to sturgeon bay wi-
lake michigan from sturgeon bay to two rivers wi 5 nm offshore to
mid lake-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
237 pm cdt fri sep 4 2026

sheboygan wi to pentwater mi north...

.tonight...northeast winds 10 to 15 kt becoming east. slight
chance of showers. areas of fog. waves 1 to 2 ft. 
.saturday...east winds 10 to 15 kt becoming northeast 10 to
20 kt. waves 1 to 3 ft. 
.saturday night...northeast winds 10 to 20 kt becoming east 10 to
15 kt after midnight, then diminishing to 5 to 10 kt late. waves
1 to 3 ft. 
.sunday...east winds 5 to 10 kt increasing to 10 to 15 kt. waves
1 to 2 ft. 
.sunday night...east winds 10 to 15 kt becoming southeast 5 to
10 kt. waves 1 to 2 ft. 
.monday...south winds 10 to 15 kt. waves 1 to 2 ft. 
.monday night...southeast winds 5 to 10 kt increasing to 10 to
20 kt. waves 1 to 2 ft building to 2 to 4 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. chance of
showers. waves 4 to 6 ft occasionally to 8 ft building to 5 to
8 ft occasionally to 10 ft. 
.wednesday...southwest winds to 30 kt becoming west gales to
40 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 041937
glflm 
expires:202609050315;;907347

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
237 pm cdt fri sep 4 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

light winds over lake michigan will shift east northeasterly 
tonight with the slow passage of a cold front. areas of dense fog
may form over central and southern lake michigan after the frontal
passage and continue through saturday morning. as high pressure 
around 30.1 inches builds into the northern great lakes from 
ontario, modest northeast winds will develop for saturday and 
saturday evening for central and southern lake michigan. light and
variable winds are then expected on sunday and monday as the high
slowly moves from the northern great lakes to the lower great 
lakes.


lmz080-669-671-673-675-777-779-870-872-874-876-878-050315-
lake michigan from michigan city in to st. joseph mi 5 nm
offshore to mid lake-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from winthrop harbor to wilmette harbor il 5 nm
offshore to mid lake-
lake michigan from wilmette harbor il to michigan city in 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
lake michigan from st. joseph to south haven mi 5 nm offshore to
mid lake-
237 pm cdt fri sep 4 2026

sheboygan wi to pentwater mi south...

.tonight...east winds 5 to 10 kt becoming northeast. chance of
showers and thunderstorms this evening, then slight chance of
showers and thunderstorms overnight. areas of fog overnight. 
waves 1 to 2 ft. 
.saturday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. areas of fog in the morning. waves 1 to 3 ft. 
.saturday night...north winds 10 to 20 kt becoming east 10 to
15 kt. waves 2 to 4 ft. 
.sunday...east winds 10 to 15 kt becoming northeast. waves 2 to
4 ft. 
.sunday night...northeast winds 10 to 15 kt becoming southeast.
waves 1 to 3 ft. 
.monday...southeast winds 10 to 15 kt. waves 1 to 3 ft. 
.monday night...east winds 10 to 15 kt becoming southeast 10 to
20 kt. waves 1 to 2 ft building to 2 to 4 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft. 
.wednesday...southwest winds 15 to 25 kt becoming west to 30 kt.
chance of showers. waves 4 to 7 ft occasionally to 9 ft subsiding
to 4 to 6 ft occasionally to 8 ft.  

$$