fzus61 kbuf 020807
glflo 
expires:202609021515;;765024

open lake forecast for lake ontario
national weather service buffalo ny
407 am 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 low averaging 30.0 inches and a frontal boundary will 
move northeast across the lake as a warm front late this morning. 
the front will then settle back south across the lake thursday. a 
30.1 inch high over northwest ontario province friday will settle 
south into the lower great lakes saturday through sunday.


loz062-021515-
lake ontario open waters from the niagara river to hamlin beach-
407 am edt wed sep 2 2026

.today...southeast winds 10 knots or less becoming south. a
chance of showers and thunderstorms early, then a chance of
showers late this morning. a chance of showers and thunderstorms
late. waves 1 foot or less. 
.tonight...southwest winds 5 to 10 knots becoming west. showers
with a chance of thunderstorms through the early overnight, then
a chance of showers late. waves 1 foot or less. 
.thursday...west winds 5 to 10 knots. waves 1 foot or less. 
.thursday night...west winds 5 to 10 knots becoming northwest.
waves 1 foot or less. 
.friday...northwest winds 10 knots or less 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. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kbuf 020807
glflo 
expires:202609021515;;765025

open lake forecast for lake ontario
national weather service buffalo ny
407 am 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 low averaging 30.0 inches and a frontal boundary will 
move northeast across the lake as a warm front late this morning. 
the front will then settle back south across the lake thursday. a 
30.1 inch high over northwest ontario province friday will settle 
south into the lower great lakes saturday through sunday.


loz063>065-021515-
lake ontario open waters from hamlin beach to the saint lawrence
river-
407 am edt wed sep 2 2026

.today...southeast winds 5 to 15 knots becoming south. showers
likely this morning, then showers likely with a chance of
thunderstorms this afternoon. waves 2 feet or less. 
.tonight...south winds 10 to 15 knots becoming west. showers with
a chance of thunderstorms early, then showers with thunderstorms
likely. a chance of showers late. waves 2 feet or less. 
.thursday...west winds 5 to 10 knots. a chance of showers in the
morning. waves 1 to 2 feet. 
.thursday night...west winds 5 to 10 knots becoming northwest.
waves 1 to 2 feet. 
.friday...northwest winds 5 to 10 knots becoming north. waves
2 feet or less. 
.saturday...north winds 5 to 15 knots becoming northeast. waves
2 feet or less. 
.sunday...northeast winds 10 knots or less becoming southeast.
waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 020757
glfle 
expires:202609021415;;764315

open lake forecast for lake erie
national weather service cleveland oh
357 am 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 stationary front will linger across southern ontario tonight as
high pressure of 30.10 inches persists across the ohio valley.
this boundary will begin to lift into new england as a warm front,
while low pressure of 29.70 inches moves east through the upper 
great lakes wednesday. a cold front will extend into the area on 
thursday, and linger south of lake erie on friday. high pressure 
of 30.10 inches builds in from the north for the weekend.


lez164>166-021415-
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-
357 am edt wed sep 2 2026

.today...southwest winds 10 to 15 knots. a chance of showers and
thunderstorms early. waves 1 to 2 feet. 
.tonight...southwest winds 10 to 15 knots becoming west. a chance
of showers with a slight chance of thunderstorms early, then a
chance of showers and thunderstorms. a chance of showers with a
slight chance of thunderstorms late. waves 1 to 3 feet. 
.thursday...west winds 5 to 10 knots becoming northwest. a chance
of showers in the morning, then a chance of showers and
thunderstorms in the afternoon. waves 1 to 3 feet subsiding to
1 foot or less. 
.thursday night...north winds 10 knots or less 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 becoming northeast. a
chance of showers during the day. waves 1 foot or less. 
.saturday...northeast winds 5 to 15 knots becoming east. waves
1 to 2 feet. 
.sunday...east winds 5 to 15 knots. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 020757
glfle 
expires:202609021415;;764316

open lake forecast for lake erie
national weather service cleveland oh
357 am 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 stationary front will linger across southern ontario tonight as
high pressure of 30.10 inches persists across the ohio valley.
this boundary will begin to lift into new england as a warm front,
while low pressure of 29.70 inches moves east through the upper 
great lakes wednesday. a cold front will extend into the area on 
thursday, and linger south of lake erie on friday. high pressure 
of 30.10 inches builds in from the north for the weekend.


lez061-167>169-021415-
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-
357 am edt wed sep 2 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 020757
glfle 
expires:202609021415;;764314

open lake forecast for lake erie
national weather service cleveland oh
357 am 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 stationary front will linger across southern ontario tonight as
high pressure of 30.10 inches persists across the ohio valley.
this boundary will begin to lift into new england as a warm front,
while low pressure of 29.70 inches moves east through the upper 
great lakes wednesday. a cold front will extend into the area on 
thursday, and linger south of lake erie on friday. high pressure 
of 30.10 inches builds in from the north for the weekend.


lez162-163-021415-
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-
357 am edt wed sep 2 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 020749
glflh 
expires:202609021600;;764236

open lake forecast for lake huron
national weather service detroit/pontiac mi
349 am 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...low pressure now over southern manitoba slowly tracks
across northern ontario through the midweek. its cold front is
likely to stall across the area on wednesday.


lhz361-021600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
349 am edt wed sep 2 2026

.today...light and variable winds becoming west 5 to 10 knots in
the late morning and early afternoon...then becoming light and
variable late in the afternoon. widespread dense fog in the
morning. a chance of showers. waves 2 feet or less. 
.tonight...light and variable winds becoming west 5 to 10 knots
early in the morning. a chance of showers in the evening. waves
2 feet or less. 
.thursday...northwest winds 5 to 10 knots early 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. 
.saturday...east winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.sunday...light and variable winds becoming southeast 5 to
10 knots. a chance of showers by midnight. waves 2 feet or less. 


$$

fzus63 kdtx 020749
glflh 
expires:202609021600;;764237

open lake forecast for lake huron
national weather service detroit/pontiac mi
349 am 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...low pressure now over southern manitoba slowly tracks
across northern ontario through the midweek. its cold front is
likely to stall across the area on wednesday.


lhz362-363-021600-
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-
349 am edt wed sep 2 2026

.today...southwest winds 5 to 10 knots in the morning becoming
light and variable. widespread dense fog in the morning. a chance
of showers in the afternoon. waves 2 feet or less. 
.tonight...light and variable winds. a chance of showers in the
evening. waves 2 feet or less. 
.thursday...northwest winds 5 to 10 knots until late afternoon
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. 
.saturday...northeast winds 5 to 10 knots early 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. 


$$

fzus63 kdtx 020749
glflh 
expires:202609021600;;764238

open lake forecast for lake huron
national weather service detroit/pontiac mi
349 am 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...low pressure now over southern manitoba slowly tracks
across northern ontario through the midweek. its cold front is
likely to stall across the area on wednesday.


lhz462>464-021600-
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-
349 am edt wed sep 2 2026

.today...southwest winds 5 to 10 knots backing to the east late
in the afternoon. a chance of waterspouts in the morning. a
chance of showers and thunderstorms in the afternoon. waves
2 feet or less. 
.tonight...north winds 5 to 10 knots in the evening becoming
light and variable. a chance of showers and thunderstorms in the
evening. waves 2 feet or less. 
.thursday...light and variable winds becoming north 5 to 10 knots
early in the afternoon. waves 2 feet or less. 
.thursday night...light and variable winds. waves 2 feet or less.
.friday...light and variable winds becoming north 5 to 10 knots
late in the afternoon. waves 2 feet or less. 
.saturday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.sunday...east winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kdtx 020748
glfsc 
expires:202609021600;;764211

lake st clair forecast
national weather service detroit/pontiac mi
348 am 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...low pressure now over southern manitoba slowly tracks
across northern ontario through the midweek. its cold front is
likely to stall across the area on wednesday.


lcz460-021600-
lake st clair-
348 am edt wed sep 2 2026

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

$$

fzus63 kmkx 020759
glflm 
expires:202609021515;;764384

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
259 am 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...

light winds, combined with a lingering humid air mass, will 
support areas of fog development across lake michigan through 
tonight. off and on thunderstorms remain possible through 
wednesday as a cold front lingers just to the north of the open 
waters. widespread severe weather isn't expected in any 
thunderstorm activity, though an isolated stronger cell with hail 
and gusty winds can't be entirely ruled out. 

light to modest southerly winds south and westerly winds north 
today will shift east-northeasterly across the lake through the 
second half of the week as 30.1 inch high pressure builds over the
hudson bay and broad, 29.6 inch low pressure moves into the 
northern great plains. an unsettled pattern featuring multiple 
additional thunderstorm chances will continue through at least 
friday night. similar to earlier week storms, widespread severe 
weather isn't anticipated, though isolated stronger storms with 
hail and gusty winds are possible.


lmz080-669-671-673-675-777-779-870-872-874-876-878-021515-
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-
259 am cdt wed sep 2 2026

sheboygan wi to pentwater mi south...

.today...southwest winds 5 to 10 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.tonight...northwest winds 10 to 20 kt backing to southwest 10 to
15 kt late in the evening, then becoming west after midnight
becoming southwest late. slight chance of showers and
thunderstorms in the evening, then chance of showers and
thunderstorms overnight. waves 1 to 3 ft. 
.thursday...south winds 5 to 10 kt backing to northeast. chance
of showers in the afternoon. waves 1 to 2 ft. 
.thursday night...northeast winds 5 to 10 kt becoming east.
showers likely with a chance of thunderstorms overnight. waves
1 ft or less. 
.friday...east winds 5 to 10 kt. chance of showers. waves 1 to
2 ft. 
.friday night...northeast winds 5 to 10 kt becoming east. chance
of showers and thunderstorms. waves 1 to 2 ft. 
.saturday...east winds 10 to 15 kt diminishing to 5 to 10 kt.
waves 1 to 3 ft. 
.sunday...southeast winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 1 to 3 ft.  

$$

fzus63 kmkx 020759
glflm 
expires:202609021515;;764383

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
259 am 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...

light winds, combined with a lingering humid air mass, will 
support areas of fog development across lake michigan through 
tonight. off and on thunderstorms remain possible through 
wednesday as a cold front lingers just to the north of the open 
waters. widespread severe weather isn't expected in any 
thunderstorm activity, though an isolated stronger cell with hail 
and gusty winds can't be entirely ruled out. 

light to modest southerly winds south and westerly winds north 
today will shift east-northeasterly across the lake through the 
second half of the week as 30.1 inch high pressure builds over the
hudson bay and broad, 29.6 inch low pressure moves into the 
northern great plains. an unsettled pattern featuring multiple 
additional thunderstorm chances will continue through at least 
friday night. similar to earlier week storms, widespread severe 
weather isn't anticipated, though isolated stronger storms with 
hail and gusty winds are possible.


lmz261-362-364-366-563-565-567-868-021515-
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-
259 am cdt wed sep 2 2026

sheboygan wi to pentwater mi north...

.today...west winds 5 to 10 kt becoming northwest. patchy fog
this morning. chance of showers and slight chance of
thunderstorms this morning, then chance of showers this
afternoon. waves 1 to 2 ft. 
.tonight...southeast winds 5 to 10 kt backing to northeast.
slight chance of showers and thunderstorms in the evening. waves
1 ft or less. 
.thursday...northeast winds 5 to 10 kt. 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 ft or less. 
.friday night...northeast winds 10 to 15 kt becoming east 5 to
10 kt. chance of showers. waves 1 ft or less. 
.saturday...east winds 10 to 15 kt. waves 1 to 2 ft. 
.sunday...south winds 10 to 15 kt. chance of showers. waves 1 to
3 ft.  

$$

fzus63 kmqt 020801
glfls 
expires:202609022000;;764485

open lake forecast for lake superior
national weather service marquette mi
400 am 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...

the 

a 29.8 inch low will continue to slowly move east over eastern 
ontario today reaching western quebec by thursday morning. 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 through friday. ridging will give way 
to another weak trough on saturday night with ridging of 30.1 inches 
building back in for sunday night and monday.




lsz264-022000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt wed sep 2 2026

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

$$

fzus63 kmqt 020801
glfls 
expires:202609022000;;764486

open lake forecast for lake superior
national weather service marquette mi
400 am 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...

the 

a 29.8 inch low will continue to slowly move east over eastern 
ontario today reaching western quebec by thursday morning. 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 through friday. ridging will give way 
to another weak trough on saturday night with ridging of 30.1 inches 
building back in for sunday night and monday.




lsz265-022000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt wed sep 2 2026

.early this morning...west winds 10 to 20 knots. waves calm to
2 feet. 
.today...west winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon, then veering north late. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots veering east in the
afternoon, then increasing to 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. 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 10 to 20 knots veering south. a chance of
showers. waves calm to 2 feet. 
.sunday...south winds 10 to 20 knots backing southeast. a chance
of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 020801
glfls 
expires:202609022000;;764483

open lake forecast for lake superior
national weather service marquette mi
400 am 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...

the 

a 29.8 inch low will continue to slowly move east over eastern 
ontario today reaching western quebec by thursday morning. 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 through friday. ridging will give way 
to another weak trough on saturday night with ridging of 30.1 inches 
building back in for sunday night and monday.




lsz162-022000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt wed sep 2 2026 /300 am cdt wed sep 2 2026/

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 5 to 15 knots backing south late. waves calm
to 2 feet. 
.tonight...west winds less than 10 knots becoming northeast 5 to
15 knots after midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots becoming east 10 to
20 knots in the afternoon, then becoming northeast 15 to 25 knots
late. a slight chance of showers by mid afternoon. waves building
to 1 to 3 feet. 
.thursday night...northeast winds 10 to 20 knots. a chance of
showers and thunderstorms. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.friday...east winds 15 to 25 knots backing northeast by mid
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 10 to 20 knots diminishing to 5 to
15 knots. a chance of showers and thunderstorms. waves calm to
2 feet. 
.sunday...east winds 5 to 15 knots becoming northeast 15 to
25 knots. a chance of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 020801
glfls 
expires:202609022000;;764488

open lake forecast for lake superior
national weather service marquette mi
400 am 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...

the 

a 29.8 inch low will continue to slowly move east over eastern 
ontario today reaching western quebec by thursday morning. 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 through friday. ridging will give way 
to another weak trough on saturday night with ridging of 30.1 inches 
building back in for sunday night and monday.




lsz267-022000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt wed sep 2 2026

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...west winds 5 to 15 knots veering northwest late.
waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots veering east after
midnight. 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 veering south. waves calm to
2 feet. 
.sunday...south winds 5 to 15 knots becoming southeast 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 020801
glfls 
expires:202609022000;;764487

open lake forecast for lake superior
national weather service marquette mi
400 am 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...

the 

a 29.8 inch low will continue to slowly move east over eastern 
ontario today reaching western quebec by thursday morning. 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 through friday. ridging will give way 
to another weak trough on saturday night with ridging of 30.1 inches 
building back in for sunday night and monday.




lsz266-022000-
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-
400 am edt wed sep 2 2026

.early this morning...west winds 10 to 20 knots. waves calm to
2 feet. 
.today...west winds 10 to 20 knots becoming northwest 5 to
15 knots in the afternoon, then backing west late. waves calm to
2 feet. 
.tonight...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots veering northeast 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 increasing to 10 to 20 knots
by mid 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 becoming south 10 to
20 knots. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots becoming southeast 10 to
20 knots. a chance of showers. waves building to 2 to 4 feet. 

$$

fzus63 kmqt 020801
glfls 
expires:202609022000;;764484

open lake forecast for lake superior
national weather service marquette mi
400 am 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...

the 

a 29.8 inch low will continue to slowly move east over eastern 
ontario today reaching western quebec by thursday morning. 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 through friday. ridging will give way 
to another weak trough on saturday night with ridging of 30.1 inches 
building back in for sunday night and monday.




lsz263-022000-
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-
400 am edt wed sep 2 2026

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 5 to 15 knots backing southwest late. waves
calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots becoming north less than
10 knots after midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots becoming east 15 to
25 knots late. waves calm to 2 feet. 
.thursday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. a chance of showers and a slight chance
of thunderstorms. waves calm to 2 feet. 
.friday...east winds 10 to 20 knots. 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. a chance of showers and
thunderstorms. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots becoming northeast 15 to
25 knots. a chance of showers. waves building to 1 to 3 feet. 

$$