fzus61 kbuf 110202
glflo 
expires:202605110900;;356885

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sun may 10 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 29.4 inch area of low pressure over northern quebec 
tonight will exit through newfoundland monday. a 30.4 inch high will 
then build from the upper great lakes monday to the lower great 
lakes by tuesday. a 29.8 inch low will move across the great lakes 
wednesday, passing near or just to the north of the lake wednesday 
evening. a 30.1 inch area of high pressure will advance from the 
western great lakes region wednesday night to cresting over the lake 
thursday night and early friday.


loz063>065-110900-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 pm edt sun may 10 2026

.overnight...west winds 5 to 10 knots. waves 1 to 3 feet
subsiding to 1 foot or less. 
.monday...west winds 10 knots or less increasing to 10 to
15 knots. waves 2 feet or less. 
.monday night...west winds 5 to 15 knots becoming northwest.
waves 2 feet or less. 
.tuesday...northwest winds 10 knots or less becoming north. waves
1 foot or less. 
.tuesday night...east winds 5 to 15 knots becoming southeast
15 to 20 knots. showers overnight. waves 1 to 3 feet. 
.wednesday...south winds 15 to 25 knots becoming west and
diminishing to 5 to 15 knots. showers. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.thursday...west winds 5 to 10 knots becoming northwest. a chance
of showers during the day. waves 2 feet or less. 
.friday...west winds 5 to 10 knots becoming southwest. waves
1 foot or less. 

$$

fzus61 kbuf 110202
glflo 
expires:202605110900;;356884

open lake forecast for lake ontario
national weather service buffalo ny
1002 pm edt sun may 10 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 29.4 inch area of low pressure over northern quebec 
tonight will exit through newfoundland monday. a 30.4 inch high will 
then build from the upper great lakes monday to the lower great 
lakes by tuesday. a 29.8 inch low will move across the great lakes 
wednesday, passing near or just to the north of the lake wednesday 
evening. a 30.1 inch area of high pressure will advance from the 
western great lakes region wednesday night to cresting over the lake 
thursday night and early friday.


loz062-110900-
lake ontario open waters from the niagara river to hamlin beach-
1002 pm edt sun may 10 2026

.overnight...west winds 10 knots or less becoming
northwest. waves 1 foot or less. 
.monday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.monday night...west winds 5 to 10 knots becoming northwest.
waves 1 foot or less. 
.tuesday...west winds 10 knots or less becoming east. waves
1 foot or less. 
.tuesday night...southeast winds 5 to 15 knots. showers. waves
2 feet or less. 
.wednesday...south winds 15 to 20 knots becoming west 10 to
15 knots. showers during the day, then showers likely wednesday
night. waves 1 to 3 feet. 
.thursday...west winds 5 to 10 knots becoming northwest. a chance
of showers during the day. waves 1 to 2 feet. 
.friday...west winds 5 to 10 knots becoming southwest. a chance
of showers friday night. waves 1 to 2 feet. 

$$

fzus61 kcle 110105
glfle 
expires:202605110815;;355212

open lake forecast for lake erie
national weather service cleveland oh
905 pm edt sun may 10 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...
high pressure 30.20 inches will persist across the region through
monday night. low pressure 29.90 inches will move east through 
the lower great lakes late tuesday into wednesday, followed by 
high pressure 30.10 inches on thursday.


lez061-168-169-110815-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-geneva-on-the-
lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
905 pm edt sun may 10 2026

.overnight...southwest winds less than 10 knots becoming
west. waves 1 foot or less. 
.monday...north winds 5 to 10 knots becoming west. waves 1 foot
or less. 
.monday night...west winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.tuesday...light and variable winds. waves 1 foot or less. 
.tuesday night...southeast winds 5 to 15 knots becoming south
15 to 20 knots. showers. waves 1 to 3 feet building to 2 to
4 feet. 
.wednesday...southwest winds 15 to 20 knots becoming northwest
10 to 15 knots. a chance of showers. waves 2 to 4 feet. 
.thursday...northwest winds 5 to 15 knots becoming west less than
10 knots. waves 1 to 3 feet subsiding to 1 foot or less. 
.friday...southwest winds 10 knots or less. a chance of showers
friday night. waves 1 foot or less. 

$$

fzus61 kcle 110105
glfle 
expires:202605110815;;355210

open lake forecast for lake erie
national weather service cleveland oh
905 pm edt sun may 10 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...
high pressure 30.20 inches will persist across the region through
monday night. low pressure 29.90 inches will move east through 
the lower great lakes late tuesday into wednesday, followed by 
high pressure 30.10 inches on thursday.


lez162>164-110815-
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-
905 pm edt sun may 10 2026

.overnight...northwest winds 5 to 10 knots. waves 1 foot or
less. 
.monday...north winds 5 to 10 knots becoming east. waves 1 foot
or less. 
.monday night...east winds 5 to 10 knots becoming southeast.
waves 1 foot or less. 
.tuesday...southeast winds 5 to 10 knots becoming south. waves
2 feet or less. 
.tuesday night...south winds 10 to 15 knots becoming southwest
and increasing to 15 to 25 knots. showers. waves 1 to 3 feet
building to 2 to 4 feet. 
.wednesday...west winds 15 to 20 knots becoming northwest. waves
2 to 4 feet. 
.thursday...northwest winds 15 to 20 knots becoming south and
diminishing to 5 to 10 knots. waves 1 to 3 feet subsiding to
1 foot or less. 
.friday...south winds 5 to 15 knots becoming southwest. a chance
of showers friday night. waves 2 feet or less. 

$$

fzus61 kcle 110105
glfle 
expires:202605110815;;355211

open lake forecast for lake erie
national weather service cleveland oh
905 pm edt sun may 10 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...
high pressure 30.20 inches will persist across the region through
monday night. low pressure 29.90 inches will move east through 
the lower great lakes late tuesday into wednesday, followed by 
high pressure 30.10 inches on thursday.


lez165>167-110815-
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-
905 pm edt sun may 10 2026

.overnight...southwest winds 5 to 10 knots becoming west.
waves 1 foot or less. 
.monday...north winds 5 to 10 knots. waves 1 foot or less. 
.monday night...northeast winds 10 knots or less becoming east.
waves 1 foot or less. 
.tuesday...southeast winds 10 knots or less becoming east. waves
1 foot or less. 
.tuesday night...southeast winds 10 to 15 knots becoming
southwest 15 to 20 knots. showers. waves 1 to 3 feet building to
3 to 5 feet. 
.wednesday...southwest winds 15 to 20 knots becoming northwest. a
chance of showers wednesday night. waves 3 to 5 feet subsiding to
2 to 4 feet. 
.thursday...northwest winds 15 to 20 knots becoming southwest
5 to 15 knots. waves 2 to 4 feet subsiding to 1 foot or less. 
.friday...southwest winds 5 to 15 knots. a chance of showers.
waves 2 feet or less. 

$$

fzus63 kdtx 110139
glflh 
expires:202605110945;;356467

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 pm edt sun may 10 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...high pressure, 30.30 inches, holds over the region
through monday maintaining lighter winds. the next low pressure
system moves in late tuesday bringing stronger wind and the next
pattern of showers and thunderstorms.


lhz363-462>464-110945-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
939 pm edt sun may 10 2026

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


$$

fzus63 kdtx 110139
glflh 
expires:202605110945;;356466

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 pm edt sun may 10 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...high pressure, 30.30 inches, holds over the region
through monday maintaining lighter winds. the next low pressure
system moves in late tuesday bringing stronger wind and the next
pattern of showers and thunderstorms.


lhz361-362-110945-
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-
939 pm edt sun may 10 2026

.rest of tonight...northwest winds 10 to 15 knots. waves 2 to
4 feet. 
.monday...northwest winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the afternoon. 
.monday night...west winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.tuesday...south winds 5 to 10 knots becoming southeast 15 to
20 knots. showers in the afternoon. waves 2 feet or less building
to 5 to 7 feet. waves occasionally around 10 feet. 
.tuesday night...southeast winds 20 to 25 knots with gusts to
around 30 knots becoming east 15 to 20 knots after midnight.
showers. waves 8 to 12 feet. waves occasionally around 15 feet. 
.wednesday...northeast winds 10 to 15 knots becoming northwest
15 to 20 knots. a chance of showers. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.thursday...northwest winds 10 to 15 knots becoming south by
midnight. waves 3 to 5 feet subsiding to 1 to 3 feet . 
.friday...south winds 5 to 10 knots increasing to 10 to 15 knots
in the late morning and early afternoon...then becoming southeast
15 to 20 knots early in the evening becoming east 10 to 15 knots
by midnight. a chance of showers. waves 1 to 3 feet building to
3 to 5 feet . 


$$

fzus63 kdtx 110139
glfsc 
expires:202605110945;;356469

lake st clair forecast
national weather service detroit/pontiac mi
939 pm edt sun may 10 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...high pressure, 30.30 inches, holds over the region
through monday maintaining lighter winds. the next low pressure
system moves in late tuesday bringing stronger wind and the next
pattern of showers and thunderstorms.


lcz460-110945-
lake st clair-
939 pm edt sun may 10 2026

.rest of tonight...northwest winds 5 to 10 knots. mostly clear.
waves 2 feet or less.
.monday...north winds 5 to 10 knots. mostly sunny. waves 2 feet or
less.
.monday night...northeast winds 10 to 15 knots becoming east 5 to 10
knots in the late evening and overnight. clear. waves 2 feet or
less.
.tuesday...southeast winds 5 to 10 knots becoming south 15 to 20
knots. mostly sunny until late afternoon becoming mostly cloudy. a
chance of light showers early in the afternoon. waves 2 feet or
less.
.tuesday night...south winds 15 to 20 knots increasing to 20 to 25
knots by midnight...then becoming southwest 15 to 20 knots after
midnight. becoming partly cloudy after midnight. showers.. then a
chance of light showers after midnight. waves 1 to 3 feet building
to 2 to 4 feet in the late evening and overnight.
.wednesday...west winds 10 to 15 knots becoming northwest 15 to 20
knots in the afternoon and evening. mostly sunny becoming partly
sunny in the afternoon becoming mostly cloudy. a chance of light
showers. waves 1 to 3 feet.
.thursday...east winds 15 to 20 knots. partly cloudy. waves 2 feet
or less.
.friday...south winds 10 to 15 knots. partly cloudy. a chance of
showers. waves 2 feet or less.

$$

fzus63 kmkx 110217
glflm 
expires:202605110930;;357805

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
917 pm cdt sun may 10 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...

no major changes to the going forecast this evening as high 
pressure around 30.3 inches is expected to move from southern 
manitoba to over lake michigan by late monday morning. relatively 
light and variable winds are expected through monday night. low 
pressure around 29.7 inches should then move gradually east 
southeast across or north of lake superior tuesday into tuesday 
night. the low will bring a cold front southeast through the 
region. gusty south to southeast winds are expected ahead of the 
front tuesday, veering west to northwest behind it and remaining 
gusty for tuesday night into wednesday. 

high pressure around 30.2 inches should then move southeast into
the region wednesday night into thursday, bringing lighter winds.


lmz080-669-671-673-675-777-779-870-872-874-876-878-110930-
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-
917 pm cdt sun may 10 2026

sheboygan wi to pentwater mi south...

.rest of tonight...northwest winds 10 to 20 kt veering to
northeast. waves 1 to 3 ft. 
.monday...northeast winds 10 to 20 kt becoming north. waves 1 to
3 ft. 
.monday night...northeast winds 10 to 20 kt diminishing to 5 to
10 kt late in the evening, then becoming southeast after midnight
increasing to 10 to 15 kt late. waves 1 to 3 ft subsiding to 1 to
2 ft. 
.tuesday...south winds to 30 kt increasing to gales to 35 kt.
rain showers in the morning, then rain showers likely in the
afternoon. waves 4 to 7 ft occasionally to 9 ft building to 7 to
10 ft occasionally to 13 ft. 
.tuesday night...southwest winds to 30 kt becoming west 15 to
25 kt. chance of rain showers in the evening. waves 6 to 9 ft
occasionally to 12 ft subsiding to 3 to 5 ft. 
.wednesday...northwest winds to 30 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.wednesday night...north winds to 30 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.thursday...northwest winds 10 to 15 kt backing to south 10 to
20 kt. waves 2 to 4 ft. 
.friday...south winds 15 to 25 kt increasing to 30 kt. chance of
rain showers. waves 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 110217
glflm 
expires:202605110930;;357804

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
917 pm cdt sun may 10 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...

no major changes to the going forecast this evening as high 
pressure around 30.3 inches is expected to move from southern 
manitoba to over lake michigan by late monday morning. relatively 
light and variable winds are expected through monday night. low 
pressure around 29.7 inches should then move gradually east 
southeast across or north of lake superior tuesday into tuesday 
night. the low will bring a cold front southeast through the 
region. gusty south to southeast winds are expected ahead of the 
front tuesday, veering west to northwest behind it and remaining 
gusty for tuesday night into wednesday. 

high pressure around 30.2 inches should then move southeast into
the region wednesday night into thursday, bringing lighter winds.


lmz261-362-364-366-563-565-567-868-110930-
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-
917 pm cdt sun may 10 2026

sheboygan wi to pentwater mi north...

.rest of tonight...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 1 to 2 ft. 
.monday...north winds 10 to 15 kt backing to southwest. waves
1 to 2 ft. 
.monday night...south winds 5 to 10 kt increasing to 10 to 20 kt.
waves 1 to 2 ft. 
.tuesday...south winds to 30 kt increasing to gales to 35 kt.
rain showers. waves 4 to 7 ft occasionally to 9 ft building to
7 to 10 ft occasionally to 13 ft. 
.tuesday night...southwest winds 15 to 25 kt becoming northwest.
chance of rain showers. waves 6 to 9 ft occasionally to 12 ft
subsiding to 4 to 6 ft occasionally to 8 ft. 
.wednesday...northwest winds to 30 kt. chance of rain showers in
the morning. waves 3 to 5 ft. 
.wednesday night...north winds to 30 kt becoming northwest 10 to
20 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.thursday...northwest winds 10 to 15 kt backing to southwest.
waves 1 to 3 ft. 
.friday...south winds to 30 kt. chance of rain showers. waves
6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmqt 110201
glfls 
expires:202605110800;;356852

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun may 10 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 30.2 inch high over manitoba continues to stretch into the upper 
great lakes at 30.3 inches tonight and monday morning. ridging from 
the high persists at around 30.2 inches over lake superior through 
monday evening before eventually being replaced by a 29.7 inch 
clipper descending over western lake superior on tuesday. as the 
clipper continues eastward tuesday night into wednesday, 30.1 inch 
high pressure ridging moves back over lake superior late in the day 
on wednesday. this ridging is pressed southeast to the lower great 
lakes thursday into friday while a 29.4 inch low emanates off the 
northern rockies. troughing of 29.7 inches moves over the lake on 
friday.



lsz264-110800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt sun may 10 2026

.rest of tonight...northwest winds 5 to 15 knots veering north
late. waves calm to 2 feet. 
.monday...northwest winds less than 10 knots becoming south 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots increasing to 10 to
20 knots late. waves building to 2 to 4 feet. 
.tuesday...southeast winds 20 to 30 knots. rain showers. waves
building to 5 to 8 feet occasionally to 10 feet. 
.tuesday night...north winds 10 to 20 knots. a chance of rain
showers. waves subsiding to 2 to 4 feet. 
.wednesday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.wednesday night...northwest winds 10 to 20 knots becoming west
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...south winds 10 to 20 knots increasing to 15 to
25 knots. a chance of rain showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday...east winds 15 to 25 knots becoming northeast 10 to
20 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 110201
glfls 
expires:202605110800;;356853

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun may 10 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 30.2 inch high over manitoba continues to stretch into the upper 
great lakes at 30.3 inches tonight and monday morning. ridging from 
the high persists at around 30.2 inches over lake superior through 
monday evening before eventually being replaced by a 29.7 inch 
clipper descending over western lake superior on tuesday. as the 
clipper continues eastward tuesday night into wednesday, 30.1 inch 
high pressure ridging moves back over lake superior late in the day 
on wednesday. this ridging is pressed southeast to the lower great 
lakes thursday into friday while a 29.4 inch low emanates off the 
northern rockies. troughing of 29.7 inches moves over the lake on 
friday.



lsz265-110800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt sun may 10 2026

.rest of tonight...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots veering east in the
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots becoming south
15 to 25 knots late. waves building to 2 to 4 feet. 
.tuesday...south winds 20 to 30 knots backing southeast by mid
afternoon. rain showers. waves building to 4 to 8 feet
occasionally to 10 feet. 
.tuesday night...west winds 15 to 25 knots becoming northwest
20 to 30 knots after midnight. a chance of rain showers. waves
subsiding to 2 to 4 feet, then building to 4 to 7 feet
occasionally to 9 feet. 
.wednesday...northwest winds 20 to 30 knots. a chance of rain
showers through early afternoon. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.wednesday night...northwest winds 15 to 25 knots becoming west
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...southeast winds 10 to 20 knots becoming south 20 to
30 knots. a chance of rain showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday...south winds 20 to 30 knots becoming east 15 to
25 knots. a chance of rain showers. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 110201
glfls 
expires:202605110800;;356854

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun may 10 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 30.2 inch high over manitoba continues to stretch into the upper 
great lakes at 30.3 inches tonight and monday morning. ridging from 
the high persists at around 30.2 inches over lake superior through 
monday evening before eventually being replaced by a 29.7 inch 
clipper descending over western lake superior on tuesday. as the 
clipper continues eastward tuesday night into wednesday, 30.1 inch 
high pressure ridging moves back over lake superior late in the day 
on wednesday. this ridging is pressed southeast to the lower great 
lakes thursday into friday while a 29.4 inch low emanates off the 
northern rockies. troughing of 29.7 inches moves over the lake on 
friday.



lsz266-110800-
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 sun may 10 2026

.rest of tonight...northwest winds 10 to 20 knots veering north
late. waves 2 to 4 feet subsiding to calm to 2 feet. 
.monday...northwest winds 5 to 15 knots veering east late. waves
calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots increasing to 10 to
20 knots after midnight, then becoming south 15 to 25 knots late.
waves building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...south winds 20 to 30 knots backing southeast by mid
afternoon. rain showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.tuesday night...northwest winds 15 to 25 knots becoming north
20 to 30 knots after midnight. rain showers likely through
midnight, then a chance of rain showers after midnight. waves
subsiding to 3 to 5 feet occasionally to 7 feet, then building to
4 to 7 feet occasionally to 9 feet. 
.wednesday...northwest gales to 35 knots. a chance of rain
showers through early afternoon. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.wednesday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.thursday...southeast winds 10 to 20 knots becoming south 20 to
30 knots. a chance of rain showers. waves subsiding to calm to
2 feet, then building to 4 to 7 feet occasionally to 9 feet. 
.friday...south winds 20 to 30 knots becoming east 15 to
25 knots. a chance of rain showers. waves building to 5 to 8 feet
occasionally to 10 feet, then subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 110201
glfls 
expires:202605110800;;356855

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun may 10 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 30.2 inch high over manitoba continues to stretch into the upper 
great lakes at 30.3 inches tonight and monday morning. ridging from 
the high persists at around 30.2 inches over lake superior through 
monday evening before eventually being replaced by a 29.7 inch 
clipper descending over western lake superior on tuesday. as the 
clipper continues eastward tuesday night into wednesday, 30.1 inch 
high pressure ridging moves back over lake superior late in the day 
on wednesday. this ridging is pressed southeast to the lower great 
lakes thursday into friday while a 29.4 inch low emanates off the 
northern rockies. troughing of 29.7 inches moves over the lake on 
friday.



lsz267-110800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt sun may 10 2026

.rest of tonight...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight, then veering north late. waves
2 to 4 feet subsiding to calm to 2 feet. 
.monday...northwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then becoming west 5 to 15 knots late.
waves calm to 2 feet. 
.monday night...south winds less than 10 knots becoming southeast
5 to 15 knots after midnight, then increasing to 10 to 20 knots
late. waves calm to 2 feet. 
.tuesday...southeast winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. a chance of rain showers through early
afternoon, then rain showers by mid afternoon. waves building to
3 to 6 feet occasionally to 8 feet. 
.tuesday night...southeast winds 15 to 25 knots backing north
after midnight. rain showers likely through midnight, then a
chance of rain showers after midnight. waves subsiding to 1 to
3 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...north winds 15 to 25 knots becoming northwest 20 to
30 knots by mid afternoon. a chance of rain showers. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 6 feet occasionally to 8 feet. 
.wednesday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.thursday...northwest winds 5 to 15 knots becoming south 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
3 to 5 feet occasionally to 7 feet. 
.friday...south winds 15 to 25 knots becoming east 10 to
20 knots. a chance of rain showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 110201
glfls 
expires:202605110800;;356850

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun may 10 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 30.2 inch high over manitoba continues to stretch into the upper 
great lakes at 30.3 inches tonight and monday morning. ridging from 
the high persists at around 30.2 inches over lake superior through 
monday evening before eventually being replaced by a 29.7 inch 
clipper descending over western lake superior on tuesday. as the 
clipper continues eastward tuesday night into wednesday, 30.1 inch 
high pressure ridging moves back over lake superior late in the day 
on wednesday. this ridging is pressed southeast to the lower great 
lakes thursday into friday while a 29.4 inch low emanates off the 
northern rockies. troughing of 29.7 inches moves over the lake on 
friday.



lsz162-110800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt sun may 10 2026 /901 pm cdt sun may 10 2026/

.rest of tonight...north winds 5 to 15 knots veering northeast
late. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots veering southeast in the
afternoon. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. rain showers likely after midnight.
waves building to 1 to 3 feet. 
.tuesday...southeast winds 10 to 20 knots veering northwest by
mid afternoon. rain showers through early afternoon, then a
chance of rain showers by mid afternoon. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.tuesday night...northwest winds 10 to 20 knots. a chance of rain
showers. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots becoming south less
than 10 knots after midnight. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots becoming south 10 to
20 knots. a chance of rain showers. waves building to 2 to
4 feet. 
.friday...east winds 10 to 20 knots backing northeast. waves
subsiding to calm to 2 feet, then building to 2 to 4 feet. 

$$

fzus63 kmqt 110201
glfls 
expires:202605110800;;356851

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun may 10 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 30.2 inch high over manitoba continues to stretch into the upper 
great lakes at 30.3 inches tonight and monday morning. ridging from 
the high persists at around 30.2 inches over lake superior through 
monday evening before eventually being replaced by a 29.7 inch 
clipper descending over western lake superior on tuesday. as the 
clipper continues eastward tuesday night into wednesday, 30.1 inch 
high pressure ridging moves back over lake superior late in the day 
on wednesday. this ridging is pressed southeast to the lower great 
lakes thursday into friday while a 29.4 inch low emanates off the 
northern rockies. troughing of 29.7 inches moves over the lake on 
friday.



lsz263-110800-
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 sun may 10 2026

.rest of tonight...northwest winds less than 10 knots veering
north after midnight. waves calm to 2 feet. 
.monday...north winds less than 10 knots becoming south 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots increasing to 10 to
20 knots late. a chance of rain showers after midnight. waves
building to 1 to 3 feet. 
.tuesday...southeast winds 10 to 20 knots veering west by mid
afternoon. rain showers through early afternoon, then a chance of
rain showers by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.tuesday night...northwest winds 10 to 20 knots. a chance of rain
showers. waves subsiding to 2 to 4 feet. 
.wednesday...northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...west winds 5 to 15 knots becoming south less
than 10 knots after midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots increasing to 10 to
20 knots. a chance of rain showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday...east winds 10 to 20 knots becoming northeast 5 to
15 knots. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 

$$