fzus61 kbuf 060202
glflo 
expires:202605060900;;082362

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt tue may 5 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 29.2 inch low over hudson bay this evening will weaken 
to 29.3 inches as it moves to northern quebec through wednesday. a 
trailing wavy cold front will slowly cross the lake through tonight, 
then drift across new england wednesday and out to sea thursday. a 
30.1 inch high over the tennessee and ohio valleys thursday night 
will slide to the mid-atlantic coastline friday. a 29.6 inch low 
will track across the lake early saturday, followed by a 29.7 inch 
low that will track near or just south of the lake for later sunday.


loz063>065-060900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt tue may 5 2026

.overnight...southwest winds 10 knots or less becoming
southeast. rain. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.wednesday...northeast winds 5 to 10 knots becoming west. rain
early, then showers likely late in the morning. waves 2 feet or
less. 
.wednesday night...west winds 5 to 10 knots. waves 2 feet or
less. 
.thursday...west winds 5 to 15 knots. waves 1 to 2 feet. 
.thursday night...west winds 10 to 15 knots. waves 1 to 2 feet. 
.friday...west winds 5 to 15 knots becoming south. a chance of
showers friday night. waves 2 feet or less. 
.saturday...south winds 5 to 15 knots becoming southwest. a
chance of showers. waves 1 to 2 feet. 
.sunday...southwest winds 5 to 15 knots becoming northwest. a
chance of showers. waves 1 to 2 feet. 

$$

fzus61 kbuf 060202
glflo 
expires:202605060900;;082361

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt tue may 5 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 29.2 inch low over hudson bay this evening will weaken 
to 29.3 inches as it moves to northern quebec through wednesday. a 
trailing wavy cold front will slowly cross the lake through tonight, 
then drift across new england wednesday and out to sea thursday. a 
30.1 inch high over the tennessee and ohio valleys thursday night 
will slide to the mid-atlantic coastline friday. a 29.6 inch low 
will track across the lake early saturday, followed by a 29.7 inch 
low that will track near or just south of the lake for later sunday.


loz062-060900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt tue may 5 2026

.overnight...south winds 5 to 10 knots becoming east. rain,
then showers late. waves 1 to 3 feet. 
.wednesday...east winds 10 knots or less becoming southwest.
showers early, then a chance of showers late in the morning.
waves 1 foot or less. 
.wednesday night...west winds 5 to 10 knots becoming northwest.
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. waves around 1 foot. 
.friday...west winds 5 to 10 knots becoming southwest. a chance
of showers friday night. waves 1 to 2 feet. 
.saturday...southwest winds 5 to 15 knots. a chance of showers.
waves 1 to 2 feet. 
.sunday...southwest winds 5 to 10 knots becoming northwest. a
chance of showers. waves 1 to 2 feet. 

$$

fzus61 kcle 060127
glfle 
expires:202605060815;;081683

open lake forecast for lake erie
national weather service cleveland oh
927 pm edt tue may 5 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 trough averaging 29.80 inches lingers over lake erie tonight. 
a ridge averaging 29.90 inches will slowly expand east across the
region wednesday through early friday. low pressure 29.70 inches 
will move east across the great lakes friday into saturday, 
pushing a cold front east across the lake. low pressure 29.80 
inches accompanied by a cold front will move east across lake erie
on sunday.


lez162>166-060815-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
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-
927 pm edt tue may 5 2026

.overnight...northwest winds 5 to 10 knots becoming north.
rain. waves 2 feet or less. 
.wednesday...north winds 5 to 10 knots becoming west. a chance of
rain early, then a slight chance of showers late in the morning.
a slight chance of showers late. waves 1 foot or less. 
.wednesday night...southwest winds 5 to 15 knots becoming
northwest. waves 2 feet or less. 
.thursday...northwest winds 5 to 10 knots becoming west. waves
2 feet or less. 
.thursday night...west winds around 10 knots becoming southwest.
waves 2 feet or less. 
.friday...southwest winds 5 to 15 knots. a chance of showers
during the day, then showers likely friday night. waves 1 to
2 feet. 
.saturday...southwest winds 10 to 15 knots. a chance of showers
saturday night. waves 1 to 2 feet. 
.sunday...southwest winds 5 to 15 knots becoming north. showers
likely during the day, then a chance of showers sunday night.
waves 1 to 2 feet. 

$$

fzus61 kcle 060127
glfle 
expires:202605060815;;081684

open lake forecast for lake erie
national weather service cleveland oh
927 pm edt tue may 5 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 trough averaging 29.80 inches lingers over lake erie tonight. 
a ridge averaging 29.90 inches will slowly expand east across the
region wednesday through early friday. low pressure 29.70 inches 
will move east across the great lakes friday into saturday, 
pushing a cold front east across the lake. low pressure 29.80 
inches accompanied by a cold front will move east across lake erie
on sunday.


lez061-167>169-060815-
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-
927 pm edt tue may 5 2026

.overnight...south winds 5 to 10 knots becoming north.
rain. waves 1 to 3 feet. 
.wednesday...north winds 5 to 10 knots becoming west. rain early,
then a slight chance of showers late in the morning. a slight
chance of showers late. waves 1 foot or less. 
.wednesday night...southwest winds 5 to 10 knots becoming
northwest. waves 1 foot or less. 
.thursday...north winds 5 to 10 knots becoming west. waves 1 foot
or less. 
.thursday night...west winds 5 to 10 knots. waves 1 to 2 feet. 
.friday...southwest winds 5 to 10 knots. a chance of showers
during the day, then showers likely friday night. waves 1 to
2 feet. 
.saturday...southwest winds 5 to 10 knots. a chance of showers
saturday night. waves 1 to 2 feet. 
.sunday...southwest winds 5 to 10 knots becoming north. showers
likely during the day, then a chance of showers sunday night.
waves 1 to 2 feet. 

$$

fzus63 kdtx 060149
glflh 
expires:202605061000;;082145

open lake forecast for lake huron
national weather service detroit/pontiac mi
949 pm edt tue may 5 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...light winds over the next several days as broad high
pressure builds into the ohio valley and southern great lakes
thursday into friday


lhz363-061000-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
949 pm edt tue may 5 2026

.rest of tonight...northeast winds 5 to 10 knots. waves 2 feet or
less. 
.wednesday...north winds 5 to 10 knots. waves 2 feet or less. 
.wednesday night...northeast winds 5 to 10 knots early in the
evening becoming light and variable. waves 2 feet or less. 
.thursday...west winds 5 to 10 knots backing to the south early
in the afternoon. waves 2 feet or less. 
.thursday night...southeast winds 5 to 10 knots veering to the
southwest in the late evening and overnight. waves 2 feet or
less. 
.friday...southwest winds 5 to 10 knots backing to the south late
in the afternoon. waves 2 feet or less. 
.saturday...southwest winds 5 to 10 knots increasing to 10 to
15 knots until early evening...then decreasing to 5 to 10 knots
by midnight. a chance of showers . waves 2 feet or less. 
.sunday...northwest winds 5 to 10 knots veering to the north . a
chance of showers early in the morning. waves 1 to 3 feet. 


$$

fzus63 kdtx 060149
glflh 
expires:202605061000;;082146

open lake forecast for lake huron
national weather service detroit/pontiac mi
949 pm edt tue may 5 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...light winds over the next several days as broad high
pressure builds into the ohio valley and southern great lakes
thursday into friday


lhz462>464-061000-
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-
949 pm edt tue may 5 2026

.rest of tonight...north winds 5 to 10 knots. waves 2 feet or
less. 
.wednesday...north winds 5 to 10 knots. waves 2 feet or less. 
.wednesday night...northeast winds 5 to 10 knots  becoming light
and variable. waves 2 feet or less. 
.thursday...light and variable winds becoming east 5 to 10 knots
early in the afternoon. waves 2 feet or less. 
.thursday night...east winds 5 to 10 knots veering to the
southwest in the late evening and overnight. waves 2 feet or
less. 
.friday...southwest winds 5 to 10 knots backing to the south late
in the afternoon. a chance of showers late in the afternoon.
waves 2 feet or less. 
.saturday...southwest winds 5 to 10 knots becoming south 10 to
15 knots early in the evening...then becoming west 5 to 10 knots
by midnight. a chance of showers. waves 2 feet or less. 
.sunday...west winds 5 to 10 knots veering to the north. a chance
of showers. waves 2 feet or less. 


$$

fzus63 kdtx 060149
glflh 
expires:202605061000;;082144

open lake forecast for lake huron
national weather service detroit/pontiac mi
949 pm edt tue may 5 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...light winds over the next several days as broad high
pressure builds into the ohio valley and southern great lakes
thursday into friday


lhz361-362-061000-
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-
949 pm edt tue may 5 2026

.rest of tonight...north winds 5 to 10 knots this evening
becoming light and variable...then becoming north 5 to 10 knots
early in the morning. waves 1 to 3 feet. 
.wednesday...north winds 5 to 10 knots backing to the west in the
late morning and afternoon. waves 1 to 3 feet. 
.wednesday night...west winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and overnight. waves 1 to 3 feet. 
.thursday...west winds 5 to 10 knots backing to the southeast
early in the afternoon. waves 1 to 3 feet. 
.thursday night...south winds 5 to 10 knots veering to the
southwest in the late evening and overnight. waves 1 to 3 feet. 
.friday...southwest winds 5 to 10 knots backing to the southeast
late in the morning...then backing to the east late in the
afternoon veering to the south late in the evening. waves 2 feet
or less. 
.saturday...southwest winds 5 to 10 knots becoming south 10 to
15 knots until early evening...then veering to the west by
midnight. a chance of showers until early evening. waves 1 to
3 feet. 
.sunday...west winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet by midnight. 


$$

fzus63 kdtx 060148
glfsc 
expires:202605061000;;082142

lake st clair forecast
national weather service detroit/pontiac mi
948 pm edt tue may 5 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...light winds over the next several days as broad high
pressure builds into the ohio valley and southern great lakes
thursday into friday


lcz460-061000-
lake st clair-
948 pm edt tue may 5 2026

.rest of tonight...southwest winds 5 to 10 knots veering to the
northwest after midnight. mostly cloudy. a chance of light showers
by midnight. waves 2 feet or less.
.wednesday...north winds 5 to 10 knots backing to the west late in
the afternoon. partly sunny. waves 2 feet or less.
.wednesday night...northwest winds 5 to 10 knots. mostly cloudy
early in the evening becoming partly cloudy. waves 2 feet or less.
.thursday...northwest winds 5 to 10 knots backing to the west in the
late morning and afternoon. mostly sunny until late afternoon
becoming mostly cloudy. waves 2 feet or less.
.thursday night...west winds 10 to 15 knots diminishing to 5 to 10
knots in the late evening and overnight. mostly clear. waves 2 feet
or less.
.friday...southwest winds 10 to 15 knots. partly sunny in the
morning becoming mostly cloudy. a chance of light showers in the
afternoon and evening. waves 2 feet or less.
.saturday...southwest winds 10 to 15 knots. partly cloudy. a chance
of showers. waves 2 feet or less.
.sunday...north winds 10 to 15 knots. partly cloudy. showers likely.
waves 2 feet or less.

$$

fzus63 kmkx 060214
glflm 
expires:202605060915;;083145

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
914 pm cdt tue may 5 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...

high pressure around 30.0 inches will continue to slide southward
into the central plains into wednesday, bringing light and 
variable winds to lake michigan. south winds should then develop
thursday, with south to southwest winds continuing through 
saturday, as high pressure around 30.0 inches remains across the 
central plains. low pressure around 29.5 inches should move
southeast across portions of the region saturday into saturday
night. a passing cold front with the low will turn winds 
northwesterly saturday night into sunday. high pressure around 
30.2 inches should then build into the western great lakes 
region later sunday into monday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-060915-
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-
914 pm cdt tue may 5 2026

sheboygan wi to pentwater mi south...

.rest of tonight...south winds 5 to 10 kt veering to northwest.
waves 1 to 2 ft. 
.wednesday...northwest winds 5 to 10 kt veering to east 10 to
15 kt. waves 1 to 2 ft. 
.wednesday night...south winds 5 to 10 kt veering to west. waves
1 to 2 ft. 
.thursday...west winds 5 to 10 kt becoming southwest 10 to 15 kt.
waves 1 to 2 ft. 
.thursday night...south winds 10 to 15 kt becoming southwest.
waves 1 to 3 ft. 
.friday...southwest winds 10 to 20 kt becoming south. waves 1 to
3 ft. 
.friday night...southwest winds 10 to 15 kt. waves 1 to 3 ft. 
.saturday...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.sunday...north winds 10 to 15 kt increasing to 10 to 20 kt.
chance of rain showers. waves 1 to 3 ft.  

$$

fzus63 kmkx 060214
glflm 
expires:202605060915;;083144

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
914 pm cdt tue may 5 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...

high pressure around 30.0 inches will continue to slide southward
into the central plains into wednesday, bringing light and 
variable winds to lake michigan. south winds should then develop
thursday, with south to southwest winds continuing through 
saturday, as high pressure around 30.0 inches remains across the 
central plains. low pressure around 29.5 inches should move
southeast across portions of the region saturday into saturday
night. a passing cold front with the low will turn winds 
northwesterly saturday night into sunday. high pressure around 
30.2 inches should then build into the western great lakes 
region later sunday into monday.


lmz261-362-364-366-563-565-567-868-060915-
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-
914 pm cdt tue may 5 2026

sheboygan wi to pentwater mi north...

.rest of tonight...north winds 10 to 15 kt becoming northwest
5 to 10 kt. waves 1 to 2 ft. 
.wednesday...northwest winds 5 to 10 kt backing to southwest
10 to 15 kt. waves 1 to 2 ft. 
.wednesday night...southwest winds 10 to 15 kt becoming west 5 to
10 kt. waves 1 to 2 ft. 
.thursday...southwest winds 10 to 15 kt. waves 1 to 2 ft. 
.thursday night...south winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.friday...southwest winds 10 to 15 kt becoming south. waves 1 to
3 ft. 
.friday night...south winds 10 to 15 kt becoming southwest. waves
1 to 3 ft. 
.saturday...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.sunday...northwest winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmqt 060201
glfls 
expires:202605060800;;082332

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt tue may 5 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 29.3 inch low over james bay lifts into northern quebec tonight as 
30.2 inch ridging builds east of the canadian rockies. wednesday, 
the high pressure over the canadian prairie splits and moves to the 
canadian four corners and the southern plains at 30.0 inches and 
30.2 inches respectively. by thursday afternoon, lake superior is 
projected to be between a 29.5 inch low over hudson bay, a 29.4 inch 
low over the mouth of the st lawrence river, a low of 29.7 inches 
over the black hills, a high of 30.1 inches over oklahoma, and a 
weak 29.9 inch high over the saskatchewan/manitoba line. the hudson 
bay and black hills lows work to pass a 29.8 inch trough over lake 
superior thursday night into friday, with the lows consolidating 
over quebec by saturday, leaving remnant 29.7 inch troughing over 
lake superior. high pressure toi 30.1 inches builds back over the 
plains by sunday.



lsz264-060800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt tue may 5 2026

.rest of tonight...west winds 5 to 15 knots veering northwest
after midnight. sprinkles and flurries by midnight. waves 2 to
4 feet subsiding to 1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots becoming west 10 to
20 knots in the afternoon. sprinkles and flurries by mid
afternoon. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.wednesday night...west winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.thursday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.friday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.friday night...south winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 
.sunday...west winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 060201
glfls 
expires:202605060800;;082333

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt tue may 5 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 29.3 inch low over james bay lifts into northern quebec tonight as 
30.2 inch ridging builds east of the canadian rockies. wednesday, 
the high pressure over the canadian prairie splits and moves to the 
canadian four corners and the southern plains at 30.0 inches and 
30.2 inches respectively. by thursday afternoon, lake superior is 
projected to be between a 29.5 inch low over hudson bay, a 29.4 inch 
low over the mouth of the st lawrence river, a low of 29.7 inches 
over the black hills, a high of 30.1 inches over oklahoma, and a 
weak 29.9 inch high over the saskatchewan/manitoba line. the hudson 
bay and black hills lows work to pass a 29.8 inch trough over lake 
superior thursday night into friday, with the lows consolidating 
over quebec by saturday, leaving remnant 29.7 inch troughing over 
lake superior. high pressure toi 30.1 inches builds back over the 
plains by sunday.



lsz265-060800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt tue may 5 2026

.rest of tonight...west winds 10 to 20 knots. waves calm to
2 feet. 
.wednesday...west winds 10 to 20 knots. waves calm to 2 feet. 
.wednesday night...west winds 10 to 20 knots. waves calm to
2 feet. 
.thursday...west winds 10 to 20 knots. waves calm to 2 feet. 
.thursday night...south winds 10 to 20 knots veering southwest
after midnight. waves calm to 2 feet. 
.friday...west winds 10 to 20 knots backing east by mid
afternoon. waves calm to 2 feet. 
.friday night...south winds 10 to 20 knots veering southwest
after midnight. waves calm to 2 feet. 
.saturday...northwest winds 15 to 25 knots becoming west 10 to
20 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.sunday...northwest winds 10 to 20 knots backing west. waves calm
to 2 feet. 

$$

fzus63 kmqt 060201
glfls 
expires:202605060800;;082334

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt tue may 5 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 29.3 inch low over james bay lifts into northern quebec tonight as 
30.2 inch ridging builds east of the canadian rockies. wednesday, 
the high pressure over the canadian prairie splits and moves to the 
canadian four corners and the southern plains at 30.0 inches and 
30.2 inches respectively. by thursday afternoon, lake superior is 
projected to be between a 29.5 inch low over hudson bay, a 29.4 inch 
low over the mouth of the st lawrence river, a low of 29.7 inches 
over the black hills, a high of 30.1 inches over oklahoma, and a 
weak 29.9 inch high over the saskatchewan/manitoba line. the hudson 
bay and black hills lows work to pass a 29.8 inch trough over lake 
superior thursday night into friday, with the lows consolidating 
over quebec by saturday, leaving remnant 29.7 inch troughing over 
lake superior. high pressure toi 30.1 inches builds back over the 
plains by sunday.



lsz266-060800-
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-
1001 pm edt tue may 5 2026

.rest of tonight...west winds 10 to 20 knots. waves 3 to 5 feet
occasionally to 7 feet subsiding to 1 to 3 feet. 
.wednesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots late. waves 1 to 3 feet. 
.wednesday night...west winds 5 to 15 knots increasing to 10 to
20 knots after midnight, then diminishing to 5 to 15 knots late.
waves subsiding to calm to 2 feet. 
.thursday...west winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...south winds 5 to 15 knots becoming southwest
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.saturday...west winds 10 to 20 knots veering northwest. waves
subsiding to calm to 2 feet. 
.sunday...northwest winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 060201
glfls 
expires:202605060800;;082335

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt tue may 5 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 29.3 inch low over james bay lifts into northern quebec tonight as 
30.2 inch ridging builds east of the canadian rockies. wednesday, 
the high pressure over the canadian prairie splits and moves to the 
canadian four corners and the southern plains at 30.0 inches and 
30.2 inches respectively. by thursday afternoon, lake superior is 
projected to be between a 29.5 inch low over hudson bay, a 29.4 inch 
low over the mouth of the st lawrence river, a low of 29.7 inches 
over the black hills, a high of 30.1 inches over oklahoma, and a 
weak 29.9 inch high over the saskatchewan/manitoba line. the hudson 
bay and black hills lows work to pass a 29.8 inch trough over lake 
superior thursday night into friday, with the lows consolidating 
over quebec by saturday, leaving remnant 29.7 inch troughing over 
lake superior. high pressure toi 30.1 inches builds back over the 
plains by sunday.



lsz267-060800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt tue may 5 2026

.rest of tonight...west winds 10 to 20 knots. sprinkles and
flurries after midnight. waves 3 to 5 feet occasionally to 7 feet
subsiding to 1 to 3 feet. 
.wednesday...west winds 10 to 20 knots veering northwest late.
sprinkles and flurries through early afternoon. waves 1 to
3 feet. 
.wednesday night...west winds 10 to 20 knots backing southwest
after midnight. waves subsiding to calm to 2 feet. 
.thursday...west winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots backing south
after midnight. waves calm to 2 feet. 
.friday...south winds 10 to 20 knots becoming west 5 to 15 knots
by mid afternoon. waves calm to 2 feet. 
.friday night...south winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...west winds 10 to 20 knots veering northwest. a chance
of rain showers. waves building to 1 to 3 feet, then subsiding to
calm to 2 feet. 
.sunday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 060201
glfls 
expires:202605060800;;082330

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt tue may 5 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 29.3 inch low over james bay lifts into northern quebec tonight as 
30.2 inch ridging builds east of the canadian rockies. wednesday, 
the high pressure over the canadian prairie splits and moves to the 
canadian four corners and the southern plains at 30.0 inches and 
30.2 inches respectively. by thursday afternoon, lake superior is 
projected to be between a 29.5 inch low over hudson bay, a 29.4 inch 
low over the mouth of the st lawrence river, a low of 29.7 inches 
over the black hills, a high of 30.1 inches over oklahoma, and a 
weak 29.9 inch high over the saskatchewan/manitoba line. the hudson 
bay and black hills lows work to pass a 29.8 inch trough over lake 
superior thursday night into friday, with the lows consolidating 
over quebec by saturday, leaving remnant 29.7 inch troughing over 
lake superior. high pressure toi 30.1 inches builds back over the 
plains by sunday.



lsz162-060800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt tue may 5 2026 /901 pm cdt tue may 5 2026/

.rest of tonight...northwest winds 10 to 20 knots. sprinkles and
flurries by midnight. waves calm to 2 feet. 
.wednesday...west winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then backing southwest late. flurries
through early afternoon. sprinkles. waves building to 1 to
3 feet. 
.wednesday night...west winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.thursday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots veering northwest
after midnight. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.friday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 
.sunday...west winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 060201
glfls 
expires:202605060800;;082331

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt tue may 5 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 29.3 inch low over james bay lifts into northern quebec tonight as 
30.2 inch ridging builds east of the canadian rockies. wednesday, 
the high pressure over the canadian prairie splits and moves to the 
canadian four corners and the southern plains at 30.0 inches and 
30.2 inches respectively. by thursday afternoon, lake superior is 
projected to be between a 29.5 inch low over hudson bay, a 29.4 inch 
low over the mouth of the st lawrence river, a low of 29.7 inches 
over the black hills, a high of 30.1 inches over oklahoma, and a 
weak 29.9 inch high over the saskatchewan/manitoba line. the hudson 
bay and black hills lows work to pass a 29.8 inch trough over lake 
superior thursday night into friday, with the lows consolidating 
over quebec by saturday, leaving remnant 29.7 inch troughing over 
lake superior. high pressure toi 30.1 inches builds back over the 
plains by sunday.



lsz263-060800-
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-
1001 pm edt tue may 5 2026

.rest of tonight...northwest winds 5 to 15 knots. sprinkles and
flurries by midnight. waves 2 to 4 feet subsiding to calm to
2 feet. 
.wednesday...northwest winds 5 to 15 knots becoming west 10 to
20 knots in the afternoon. flurries through early afternoon.
sprinkles. a slight chance of snow showers by mid afternoon.
waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.wednesday night...west winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.thursday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.friday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.friday night...southwest winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.saturday...west winds 5 to 15 knots veering northwest. waves
calm to 2 feet. 
.sunday...west winds 5 to 15 knots. waves calm to 2 feet. 

$$