fzus61 kbuf 022108
glflo 
expires:202609030315;;796308

open lake forecast for lake ontario
national weather service buffalo ny
508 pm edt wed sep 2 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 continues to move eastward across 
northern quebec and allows a cold front to sweep eastward across 
lake ontario tonight. behind the front, an extensive high pressure 
ridge averaging 30.1 inches builds from northern ontario and 
vicinity through this monday.


loz063>065-030315-
lake ontario open waters from hamlin beach to the saint lawrence
river-
508 pm edt wed sep 2 2026

...tornado watch 645 in effect until 11 pm edt this evening...

.tonight...south winds 10 to 15 knots becoming west.
thunderstorms likely with a chance of showers this evening, then
showers with a chance of thunderstorms after midnight. a chance
of showers late. some thunderstorms may produce strong winds this
evening. waves 2 feet or less. 
.thursday...west winds 5 to 10 knots. a chance of showers early.
waves 1 to 2 feet. 
.thursday night...west winds 5 to 10 knots becoming northwest.
waves 1 to 2 feet. 
.friday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.friday night...west winds 5 to 10 knots becoming north. waves
1 to 2 feet. 
.saturday...north winds 5 to 10 knots becoming northeast. waves
2 feet or less. 
.sunday...northeast winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.monday...south winds 10 knots or less becoming southwest 10 to
15 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 022108
glflo 
expires:202609030315;;796307

open lake forecast for lake ontario
national weather service buffalo ny
508 pm edt wed sep 2 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 continues to move eastward across 
northern quebec and allows a cold front to sweep eastward across 
lake ontario tonight. behind the front, an extensive high pressure 
ridge averaging 30.1 inches builds from northern ontario and 
vicinity through this monday.


loz062-030315-
lake ontario open waters from the niagara river to hamlin beach-
508 pm edt wed sep 2 2026

...tornado watch 645 in effect until 11 pm edt this evening...

.tonight...southwest winds 5 to 15 knots becoming west.
thunderstorms likely with a chance of showers this evening, then
showers likely with a chance of thunderstorms after midnight. a
chance of showers late. some thunderstorms may produce strong
winds this evening. waves 1 foot or less. 
.thursday...west winds 10 knots or less becoming southwest. waves
1 foot or less. 
.thursday night...west winds 10 knots or less becoming northwest.
waves 1 foot or less. 
.friday...northwest winds 10 knots or less becoming west. waves
1 foot or less. 
.friday night...west winds 5 to 10 knots becoming north. waves
1 foot or less. 
.saturday...north winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.sunday...northeast winds 10 knots or less becoming southeast.
waves 1 foot or less. 
.monday...southeast winds 10 knots or less. waves 1 foot or less.

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 022256
glfle 
expires:202609030215;;800279

open lake forecast for lake erie
national weather service cleveland oh
656 pm edt wed sep 2 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 will remain north of lake erie tonight into
thursday before being pushed south as a cold front on thursday
evening. a ridge averaging 30.00 inches will build from the north
on friday and persist through the weekend into early next week.


lez162-163-030215-
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-
656 pm edt wed sep 2 2026

.tonight...southwest winds 10 to 15 knots. a slight chance of
showers and thunderstorms through the early overnight, then a
chance of showers and thunderstorms late. waves 1 to 2 feet. 
.thursday...west winds 5 to 10 knots becoming southeast. a chance
of showers and thunderstorms early, then a slight chance of
showers and thunderstorms late in the morning. a chance of
showers and thunderstorms in the afternoon. waves around 1 foot. 
.thursday night...southeast winds 5 to 10 knots becoming east. a
chance of showers and thunderstorms in the evening, then showers
likely with a chance of thunderstorms overnight. waves 1 foot or
less. 
.friday...northeast winds 10 knots or less. a chance of showers.
waves 1 foot or less. 
.friday night...northeast winds 10 knots or less. a chance of
showers. waves 1 foot or less. 
.saturday...northeast winds 5 to 10 knots. waves 1 to 2 feet. 
.sunday...east winds 5 to 10 knots. waves 1 to 2 feet. 
.monday...east winds 5 to 10 knots becoming southeast. waves
around 1 foot. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 022256
glfle 
expires:202609030215;;800282

open lake forecast for lake erie
national weather service cleveland oh
656 pm edt wed sep 2 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 will remain north of lake erie tonight into
thursday before being pushed south as a cold front on thursday
evening. a ridge averaging 30.00 inches will build from the north
on friday and persist through the weekend into early next week.


lez061-030215-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
656 pm edt wed sep 2 2026

...tornado watch 645 in effect until 11 pm edt this evening...

.tonight...southwest winds 10 to 15 knots becoming west. showers
and thunderstorms this evening, then showers and thunderstorms
likely after midnight. showers likely with a chance of
thunderstorms late. some thunderstorms may be severe with
damaging winds, large hail, and tornadoes this evening. waves
1 to 2 feet. 
.thursday...west winds 5 to 10 knots. a chance of showers with a
slight chance of thunderstorms early, then a chance of showers
late in the morning. a slight chance of showers and thunderstorms
in the afternoon. waves around 1 foot. 
.thursday night...southwest winds 10 knots or less becoming
north. a chance of showers and thunderstorms in the evening, then
a chance of showers overnight. waves 1 foot or less. 
.friday...northeast winds less than 10 knots. a chance of
showers. waves 1 foot or less. 
.friday night...west winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.saturday...northeast winds 5 to 10 knots becoming east. waves
1 foot or less. 
.sunday...northeast winds 5 to 10 knots becoming southeast. waves
1 foot or less. 
.monday...southeast winds 10 knots or less becoming south. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 022256
glfle 
expires:202609030215;;800281

open lake forecast for lake erie
national weather service cleveland oh
656 pm edt wed sep 2 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 will remain north of lake erie tonight into
thursday before being pushed south as a cold front on thursday
evening. a ridge averaging 30.00 inches will build from the north
on friday and persist through the weekend into early next week.


lez168-169-030215-
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-
656 pm edt wed sep 2 2026

...severe thunderstorm watch 646 in effect until midnight edt
tonight...

.tonight...southwest winds 10 to 15 knots becoming west. showers
and thunderstorms likely this evening, then a chance of showers
and thunderstorms after midnight. waves 1 to 3 feet. 
.thursday...northwest winds 5 to 10 knots becoming west. a chance
of showers with a slight chance of thunderstorms in the morning,
then a slight chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet. 
.thursday night...west winds 10 knots or less becoming north. a
chance of showers and thunderstorms in the evening, then showers
likely overnight. waves 1 foot or less. 
.friday...north winds 10 knots or less becoming northwest. a
chance of showers. waves 1 foot or less. 
.friday night...west winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.saturday...northeast winds 5 to 10 knots becoming east. waves
1 foot or less. 
.sunday...east winds 5 to 10 knots. waves 2 feet or less. 
.monday...southeast winds 10 knots or less. waves 2 feet or less.

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 022256
glfle 
expires:202609030215;;800280

open lake forecast for lake erie
national weather service cleveland oh
656 pm edt wed sep 2 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 will remain north of lake erie tonight into
thursday before being pushed south as a cold front on thursday
evening. a ridge averaging 30.00 inches will build from the north
on friday and persist through the weekend into early next week.


lez164>167-030215-
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-
656 pm edt wed sep 2 2026

.tonight...southwest winds 10 to 15 knots becoming west. a chance
of showers and thunderstorms. waves 1 to 3 feet. 
.thursday...west winds 5 to 10 knots becoming southwest. a chance
of showers and thunderstorms early, then a slight chance of
showers and thunderstorms. a chance of showers and thunderstorms
late. waves 1 to 2 feet. 
.thursday night...southeast winds 5 to 10 knots becoming
northeast. a chance of showers and thunderstorms in the evening,
then showers likely with a chance of thunderstorms overnight.
waves 1 foot or less. 
.friday...north winds 10 knots or less. showers likely in the
morning, then a chance of showers in the afternoon. waves 1 foot
or less. 
.friday night...north winds 5 to 10 knots becoming northeast.
waves 2 feet or less. 
.saturday...northeast winds 5 to 15 knots becoming east. waves
1 to 2 feet. 
.sunday...east winds 5 to 15 knots. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 021956
glfle 
expires:202609030215;;793114

open lake forecast for lake erie
national weather service cleveland oh
356 pm edt wed sep 2 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 will remain north of lake erie tonight into
thursday before being pushed south as a cold front on thursday
evening. a ridge averaging 30.00 inches will build from the north
on friday and persist through the weekend into early next week.


lez061-167>169-030215-
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-
356 pm edt wed sep 2 2026

.tonight...southwest winds 10 to 15 knots becoming west. a chance
of showers and thunderstorms. waves 1 to 3 feet. 
.thursday...northwest winds 5 to 10 knots becoming west. a chance
of showers with a slight chance of thunderstorms in the morning,
then a slight chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet. 
.thursday night...southwest winds 10 knots or less becoming
north. a chance of showers and thunderstorms in the evening, then
showers likely overnight. waves 1 foot or less. 
.friday...north winds less than 10 knots becoming northwest. a
chance of showers. waves 1 foot or less. 
.friday night...northwest winds 10 knots or less becoming
northeast. waves 2 feet or less. 
.saturday...northeast winds 5 to 10 knots becoming east. waves
2 feet or less. 
.sunday...east winds 5 to 15 knots. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 021956
glfle 
expires:202609030215;;793113

open lake forecast for lake erie
national weather service cleveland oh
356 pm edt wed sep 2 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 will remain north of lake erie tonight into
thursday before being pushed south as a cold front on thursday
evening. a ridge averaging 30.00 inches will build from the north
on friday and persist through the weekend into early next week.


lez164>166-030215-
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-
356 pm edt wed sep 2 2026

.tonight...southwest winds 10 to 15 knots becoming west. a chance
of showers and thunderstorms. waves 1 to 3 feet. 
.thursday...west winds 5 to 10 knots becoming south. a chance of
showers and thunderstorms early, then a slight chance of showers
and thunderstorms. a chance of showers and thunderstorms late.
waves 1 to 2 feet. 
.thursday night...southeast winds 5 to 10 knots becoming
northeast. a chance of showers and thunderstorms in the evening,
then showers likely with a chance of thunderstorms overnight.
waves 1 foot or less. 
.friday...northeast winds 10 knots or less becoming north.
showers likely. waves 1 foot or less. 
.friday night...northeast winds 5 to 10 knots. waves 2 feet or
less. 
.saturday...northeast winds 5 to 15 knots becoming east. waves
1 to 2 feet. 
.sunday...east winds 5 to 15 knots. waves 2 feet or less. 
.monday...east winds 5 to 10 knots becoming southeast. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 021943
glfsc 
expires:202609030345;;792769

lake st clair forecast
national weather service detroit/pontiac mi
343 pm edt wed sep 2 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 few thunderstorms are passing through a very muggy
air mass this afternoon and evening as a weak cold front drops
southeastward through region. convective chances decrease a bit
overnight within the wake of the slowing front. daily
thunderstorm chances will persist into the weekend.


lcz460-030345-
lake st clair-
343 pm edt wed sep 2 2026

.tonight...southwest winds 10 to 15 knots becoming west 5 to 10
knots after midnight. partly cloudy with scattered showers and
thunderstorms. waves 2 feet or less.
.thursday...light and variable winds becoming southeast 5 to 10
knots in the afternoon. partly sunny. a chance of showers and
thunderstorms early in the morning. a chance of showers and
thunderstorms in the afternoon. waves 2 feet or less.
.thursday night...south winds 5 to 10 knots backing to the northeast
in the late evening and overnight. partly cloudy becoming mostly
cloudy. a chance of thunderstorms early in the evening. a chance of
light showers. light showers likely after midnight. waves 2 feet or
less.
.friday...light and variable winds. mostly cloudy. light showers
likely until late afternoon. a chance of light showers early in the
afternoon. waves 2 feet or less.
.friday night...northeast winds 5 to 10 knots. partly cloudy. waves
2 feet or less.
.saturday...northeast winds 5 to 10 knots increasing to 10 to 15
knots in the evening. partly cloudy then clearing. waves 2 feet or
less.
.sunday...east winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.monday...southeast winds 5 to 10 knots. mostly clear. waves 2 feet
or less.

$$

fzus63 kdtx 021943
glflh 
expires:202609030345;;792762

open lake forecast for lake huron
national weather service detroit/pontiac mi
343 pm edt wed sep 2 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 few thunderstorms are passing through a very muggy
air mass this afternoon and evening as a weak cold front drops
southeastward through region. convective chances decrease a bit
overnight within the wake of the slowing front. daily
thunderstorm chances will persist into the weekend.


lhz361-362-030345-
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-
343 pm edt wed sep 2 2026

.tonight...light and variable winds. a chance of showers and
thunderstorms in the evening. waves 2 feet or less. 
.thursday...northwest winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.thursday night...light and variable winds. waves 2 feet or less.
.friday...light and variable winds. waves 2 feet or less. 
.friday night...light and variable winds. waves nearly calm. 
.saturday...east winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.sunday...light and variable winds becoming southeast 5 to
10 knots . waves 2 feet or less. 
.monday...south winds 5 to 10 knots backing to the east early in
the evening...then becoming southeast 10 to 15 knots by midnight.
waves 2 feet or less. 


$$

fzus63 kdtx 021943
glflh 
expires:202609030345;;792763

open lake forecast for lake huron
national weather service detroit/pontiac mi
343 pm edt wed sep 2 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 few thunderstorms are passing through a very muggy
air mass this afternoon and evening as a weak cold front drops
southeastward through region. convective chances decrease a bit
overnight within the wake of the slowing front. daily
thunderstorm chances will persist into the weekend.


lhz363-462-030345-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
343 pm edt wed sep 2 2026

.tonight...light and variable winds. a chance of showers and
thunderstorms. waves 2 feet or less. 
.thursday...light and variable winds. waves 2 feet or less. 
.thursday night...light and variable winds. a chance of showers
after midnight. waves 2 feet or less. 
.friday...light and variable winds. waves 2 feet or less. 
.friday night...light and variable winds becoming north 5 to
10 knots after midnight. waves 2 feet or less. 
.saturday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.sunday...light and variable winds becoming east 5 to 10 knots by
midnight. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots increasing to 10 to
15 knots by midnight. waves 2 feet or less. 


$$

fzus63 kdtx 021943
glflh 
expires:202609030345;;792764

open lake forecast for lake huron
national weather service detroit/pontiac mi
343 pm edt wed sep 2 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 few thunderstorms are passing through a very muggy
air mass this afternoon and evening as a weak cold front drops
southeastward through region. convective chances decrease a bit
overnight within the wake of the slowing front. daily
thunderstorm chances will persist into the weekend.


lhz463-464-030345-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
343 pm edt wed sep 2 2026

.tonight...north winds 5 to 10 knots in the evening becoming
light and variable. a chance of waterspouts in the evening.
showers and thunderstorms likely in the evening...then
thunderstorms likely and a chance of showers after midnight.
waves 2 feet or less. 
.thursday...light and variable winds becoming northeast 5 to
10 knots late in the afternoon. a chance of showers and
thunderstorms in the morning. waves 2 feet or less. 
.thursday night...northeast winds 5 to 10 knots early in the
evening becoming light and variable. a chance of showers after
midnight. waves 2 feet or less. 
.friday...light and variable winds becoming north 5 to 10 knots
in the late morning and afternoon. a chance of showers. waves
2 feet or less. 
.friday night...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...then becoming northeast 5 to
10 knots late in the evening. waves 2 feet or less. 
.sunday...east winds 5 to 10 knots backing to the northeast early
in the evening...then veering to the east by midnight. waves
2 feet or less. 
.monday...southeast winds 5 to 10 knots backing to the east .
waves 2 feet or less. 


$$

fzus63 kmkx 021948
glflm 
expires:202609030330;;792976

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
248 pm cdt wed sep 2 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...

a frontal boundary will remain across the great lakes region 
through friday. as this frontal boundary waffles north to south 
across the lake from day to day, generally east to northeast winds
are expected north of the front, with east to southeast winds 
south of the front. on and off thunderstorms will be possible 
along and north of this frontal boundary through at least friday 
night. 

high pressure around 30.1 inches builds over hudson bay on 
saturday, while low pressure around 29.6 inches moves into the 
northern great plains. similar to earlier week storms, widespread 
severe weather is not anticipated, though isolated stronger 
storms with hail and gusty winds are possible.


lmz080-669-671-673-675-777-779-870-872-874-876-878-030330-
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-
248 pm cdt wed sep 2 2026

sheboygan wi to pentwater mi south...

.tonight...southeast winds 10 to 15 kt. chance of showers and
slight chance of thunderstorms overnight. waves 1 to 2 ft. 
.thursday...southeast winds 10 to 15 kt backing to north early in
the afternoon, then becoming northeast late. chance of showers
and slight chance of thunderstorms in the morning, then slight
chance of showers and thunderstorms in the afternoon. waves 1 to
2 ft. 
.thursday night...northeast winds 5 to 10 kt becoming east 10 to
20 kt. chance of showers and thunderstorms in the evening, then
showers with a chance of thunderstorms overnight. waves 1 to
2 ft. 
.friday...east winds 10 to 15 kt diminishing to 5 to 10 kt.
chance of showers. waves 1 to 2 ft. 
.friday night...northeast winds 5 to 10 kt becoming east 10 to
15 kt. chance of showers in the evening, then showers likely with
a chance of thunderstorms overnight. waves 1 to 2 ft. 
.saturday...east winds 10 to 15 kt diminishing to 5 to 10 kt.
waves 1 to 3 ft. 
.saturday night...east winds 10 to 20 kt. waves 1 to 2 ft
building to 1 to 3 ft. 
.sunday...southeast winds 10 to 15 kt becoming east. waves 1 to
3 ft. 
.monday...southeast winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmkx 021948
glflm 
expires:202609030330;;792975

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
248 pm cdt wed sep 2 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...

a frontal boundary will remain across the great lakes region 
through friday. as this frontal boundary waffles north to south 
across the lake from day to day, generally east to northeast winds
are expected north of the front, with east to southeast winds 
south of the front. on and off thunderstorms will be possible 
along and north of this frontal boundary through at least friday 
night. 

high pressure around 30.1 inches builds over hudson bay on 
saturday, while low pressure around 29.6 inches moves into the 
northern great plains. similar to earlier week storms, widespread 
severe weather is not anticipated, though isolated stronger 
storms with hail and gusty winds are possible.


lmz261-362-364-366-563-565-567-868-030330-
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-
248 pm cdt wed sep 2 2026

sheboygan wi to pentwater mi north...

.tonight...south winds 5 to 10 kt backing to northeast. slight
chance of showers and thunderstorms overnight. waves 1 ft or
less. 
.thursday...east winds 5 to 10 kt becoming northeast. chance of
showers and slight chance of thunderstorms. waves 1 ft or less. 
.thursday night...northeast winds 5 to 10 kt becoming east.
chance of showers. waves 1 ft or less. 
.friday...east winds 5 to 10 kt becoming northeast 10 to 15 kt.
waves 1 to 2 ft. 
.friday night...northeast winds 10 to 15 kt becoming east 5 to
10 kt. chance of showers overnight. waves 1 ft or less. 
.saturday...east winds 10 to 15 kt. waves 1 to 2 ft. 
.saturday night...east winds 10 to 15 kt becoming southeast.
waves 1 to 2 ft building to 1 to 3 ft. 
.sunday...southeast winds 10 to 15 kt becoming south. waves 1 to
3 ft. 
.monday...south winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmqt 022020 cca
glfls 
expires:202609030800;;794798

open lake forecast for lake superior...corrected
national weather service marquette mi
420 pm edt wed sep 2 2026

for waters beyond 5 nautical miles of shore on lake superior.

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 29.8 inch low continues to move into western quebec this 
afternoon. a broad 29.9 inch trough over the upper great lakes will 
shift east as the low departs ontario tonight and a 29.9 inch ridge 
will move into the area, building to 30.0 inches by friday 
afternoon. ridging will build to 30.1 inches by sunday night and 
persist through monday afternoon.




lsz265-030800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
420 pm edt wed sep 2 2026

.late this afternoon...north winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots veering northeast in the
afternoon, then becoming east 10 to 20 knots late. waves calm to
2 feet. 
.thursday night...east winds 5 to 15 knots. a slight chance of
showers after midnight. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. a slight chance of showers through early
afternoon. waves building to 1 to 3 feet. 
.friday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...east winds 5 to 15 knots increasing to 15 to 25 knots
by mid afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 10 to 20 knots. waves calm to
2 feet. 
.sunday...southeast winds 10 to 20 knots veering south. a chance
of showers. waves building to 1 to 3 feet. 
.monday...east winds 20 to 30 knots veering southeast. a chance
of showers. waves building to 3 to 5 feet occasionally to 7 feet.

$$

fzus63 kmqt 022020 cca
glfls 
expires:202609030800;;794797

open lake forecast for lake superior...corrected
national weather service marquette mi
420 pm edt wed sep 2 2026

for waters beyond 5 nautical miles of shore on lake superior.

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 29.8 inch low continues to move into western quebec this 
afternoon. a broad 29.9 inch trough over the upper great lakes will 
shift east as the low departs ontario tonight and a 29.9 inch ridge 
will move into the area, building to 30.0 inches by friday 
afternoon. ridging will build to 30.1 inches by sunday night and 
persist through monday afternoon.




lsz264-030800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
420 pm edt wed sep 2 2026

.late this afternoon...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...west winds 5 to 15 knots diminishing to less than
10 knots after midnight, then veering north late. waves calm to
2 feet. 
.thursday...northeast winds less than 10 knots increasing to 5 to
15 knots in the afternoon, then veering east late. waves calm to
2 feet. 
.thursday night...east winds 5 to 15 knots. a slight chance of
showers after midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a slight chance of showers through early
afternoon. waves calm to 2 feet. 
.friday night...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots. a chance of
showers after midnight. waves calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots increasing to 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 
.monday...east winds 20 to 30 knots becoming southeast 15 to
25 knots. a chance of showers. waves building to 2 to 4 feet,
then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 022020 cca
glfls 
expires:202609030800;;794799

open lake forecast for lake superior...corrected
national weather service marquette mi
420 pm edt wed sep 2 2026

for waters beyond 5 nautical miles of shore on lake superior.

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 29.8 inch low continues to move into western quebec this 
afternoon. a broad 29.9 inch trough over the upper great lakes will 
shift east as the low departs ontario tonight and a 29.9 inch ridge 
will move into the area, building to 30.0 inches by friday 
afternoon. ridging will build to 30.1 inches by sunday night and 
persist through monday afternoon.




lsz266-030800-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
420 pm edt wed sep 2 2026

.late this afternoon...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots diminishing to less than
10 knots in the afternoon, then becoming northeast 5 to 15 knots
late. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. waves calm to 2 feet.
.friday...east winds 5 to 15 knots. a slight chance of showers
through early afternoon. waves calm to 2 feet. 
.friday night...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves calm to 2 feet. 
.sunday...south winds 10 to 20 knots. a chance of showers. waves
building to 2 to 4 feet. 
.monday...east winds 15 to 25 knots becoming southeast 20 to
30 knots. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet. 

$$

fzus63 kmqt 022020 cca
glfls 
expires:202609030800;;794795

open lake forecast for lake superior...corrected
national weather service marquette mi
420 pm edt wed sep 2 2026

for waters beyond 5 nautical miles of shore on lake superior.

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 29.8 inch low continues to move into western quebec this 
afternoon. a broad 29.9 inch trough over the upper great lakes will 
shift east as the low departs ontario tonight and a 29.9 inch ridge 
will move into the area, building to 30.0 inches by friday 
afternoon. ridging will build to 30.1 inches by sunday night and 
persist through monday afternoon.




lsz162-030800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
420 pm edt wed sep 2 2026 /320 pm cdt wed sep 2 2026/

.late this afternoon...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots increasing to 15 to
25 knots in the afternoon, then becoming east 20 to 30 knots
late. waves building to 2 to 4 feet. 
.thursday night...east winds 15 to 25 knots becoming northeast
10 to 20 knots after midnight. a chance of showers and a slight
chance of thunderstorms. waves subsiding to 1 to 3 feet. 
.friday...northeast winds 15 to 25 knots. a slight chance of
showers through early afternoon. waves building to 2 to 4 feet. 
.friday night...northeast winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots. a chance of
showers and thunderstorms. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots becoming northeast 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 
.monday...east gales to 35 knots. a chance of showers. showers
likely. waves building to 2 to 4 feet. 

$$

fzus63 kmqt 022020 cca
glfls 
expires:202609030800;;794796

open lake forecast for lake superior...corrected
national weather service marquette mi
420 pm edt wed sep 2 2026

for waters beyond 5 nautical miles of shore on lake superior.

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 29.8 inch low continues to move into western quebec this 
afternoon. a broad 29.9 inch trough over the upper great lakes will 
shift east as the low departs ontario tonight and a 29.9 inch ridge 
will move into the area, building to 30.0 inches by friday 
afternoon. ridging will build to 30.1 inches by sunday night and 
persist through monday afternoon.




lsz263-030800-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
420 pm edt wed sep 2 2026

.late this afternoon...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...west winds 5 to 15 knots diminishing to less than
10 knots after midnight, then veering northeast late. waves calm
to 2 feet. 
.thursday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then becoming east 15 to 25 knots
late. waves building to 1 to 3 feet. 
.thursday night...east winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. a slight chance of showers through
midnight. a slight chance of thunderstorms. a chance of showers
after midnight. waves subsiding to calm to 2 feet. 
.friday...east winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. a slight chance of showers through early
afternoon. waves building to 1 to 3 feet. 
.friday night...east winds 15 to 25 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots veering southeast
after midnight. a chance of showers. a chance of thunderstorms
after midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots becoming east 15 to 25 knots.
a chance of showers. waves building to 1 to 3 feet. 
.monday...east gales to 35 knots becoming southeast 20 to
30 knots. a chance of showers. waves building to 2 to 4 feet. 

$$

fzus63 kmqt 022020 cca
glfls 
expires:202609030800;;794800

open lake forecast for lake superior...corrected
national weather service marquette mi
420 pm edt wed sep 2 2026

for waters beyond 5 nautical miles of shore on lake superior.

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 29.8 inch low continues to move into western quebec this 
afternoon. a broad 29.9 inch trough over the upper great lakes will 
shift east as the low departs ontario tonight and a 29.9 inch ridge 
will move into the area, building to 30.0 inches by friday 
afternoon. ridging will build to 30.1 inches by sunday night and 
persist through monday afternoon.




lsz267-030800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
420 pm edt wed sep 2 2026

.late this afternoon...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...northwest winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots veering east late.
waves calm to 2 feet. 
.friday...east winds 5 to 15 knots backing northeast by mid
afternoon. waves calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots becoming south 10 to
20 knots after midnight. waves calm to 2 feet. 
.sunday...southeast winds 10 to 20 knots veering south. a chance
of showers. waves building to 1 to 3 feet. 
.monday...east winds 10 to 20 knots becoming southeast 15 to
25 knots. a chance of showers. waves building to 2 to 4 feet,
then subsiding to 1 to 3 feet. 

$$