fzus61 kbuf 081402
glflo 
expires:202605082100;;220092

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri may 8 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 30.1 inch high will drift off the mid atlantic coast 
through tonight. a weak 29.5 inch low will then move from the upper 
great lakes saturday to western quebec by early sunday before moving 
to northern quebec early monday. meanwhile, a trailing cold front 
will cross the lake sunday night. a 30.4 inch high will then build 
from the upper great lakes monday to the lower great lakes by 
tuesday.


loz062-082100-
lake ontario open waters from the niagara river to hamlin beach-
1002 am edt fri may 8 2026

.this afternoon...west winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.tonight...southwest winds 5 to 10 knots becoming south. waves
2 feet or less. 
.saturday...south winds 10 knots or less becoming southeast. a
chance of showers in the afternoon. waves 1 foot or less. 
.saturday night...south winds 10 to 15 knots becoming west. a
chance of showers. waves 1 to 3 feet. 
.sunday...west winds 5 to 15 knots becoming northwest. waves 1 to
3 feet. 
.monday...west winds 5 to 15 knots becoming northwest. waves
2 feet or less. 
.tuesday...northwest winds 5 to 10 knots becoming southeast.
waves 2 feet or less. 

$$

fzus61 kbuf 081402
glflo 
expires:202605082100;;220093

open lake forecast for lake ontario
national weather service buffalo ny
1002 am edt fri may 8 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 30.1 inch high will drift off the mid atlantic coast 
through tonight. a weak 29.5 inch low will then move from the upper 
great lakes saturday to western quebec by early sunday before moving 
to northern quebec early monday. meanwhile, a trailing cold front 
will cross the lake sunday night. a 30.4 inch high will then build 
from the upper great lakes monday to the lower great lakes by 
tuesday.


loz063>065-082100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1002 am edt fri may 8 2026

.this afternoon...west winds 5 to 15 knots becoming southwest.
waves 2 feet or less. 
.tonight...southwest winds 5 to 15 knots becoming south. waves
2 feet or less. 
.saturday...south winds 5 to 15 knots becoming southeast. a
chance of showers in the afternoon. waves 2 feet or less. 
.saturday night...southeast winds 10 to 15 knots becoming west
15 to 20 knots. showers likely. waves 1 to 3 feet building to
2 to 4 feet. 
.sunday...west winds 15 to 20 knots becoming northwest 5 to
15 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...west winds 5 to 15 knots becoming northwest. waves 1 to
3 feet. 
.tuesday...northwest winds 5 to 15 knots becoming south. waves
2 feet or less. 

$$

fzus61 kcle 081328
glfle 
expires:202605082015;;219471

open lake forecast for lake erie
national weather service cleveland oh
928 am edt fri may 8 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...
mean sea level pressure wavers around 29.80 inches through 
saturday afternoon as subtle trough axes move eastward across 
lake erie. a cold front is expected to sweep southeastward across
the lake saturday evening through saturday night. behind the 
front, a ridge averaging 30.10 inches should affect lake erie as 
the embedded high pressure center moves from the canadian prairies
to atlantic waters near north carolina on sunday through tuesday.


lez162>164-082015-
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-
928 am edt fri may 8 2026

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

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 081328
glfle 
expires:202605082015;;219473

open lake forecast for lake erie
national weather service cleveland oh
928 am edt fri may 8 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...
mean sea level pressure wavers around 29.80 inches through 
saturday afternoon as subtle trough axes move eastward across 
lake erie. a cold front is expected to sweep southeastward across
the lake saturday evening through saturday night. behind the 
front, a ridge averaging 30.10 inches should affect lake erie as 
the embedded high pressure center moves from the canadian prairies
to atlantic waters near north carolina on sunday through tuesday.


lez165>167-082015-
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-
928 am edt fri may 8 2026

.this afternoon...west winds 10 knots or less becoming southwest.
waves 1 to 2 feet. 
.tonight...south winds 5 to 10 knots. a slight chance of showers
early, then a chance of showers from late evening on. waves
2 feet or less. 
.saturday...south winds 5 to 15 knots becoming southwest. a
chance of showers in the afternoon. waves 1 to 2 feet. 
.saturday night...southwest winds 5 to 15 knots becoming
northwest. a chance of showers. waves 1 to 3 feet. 
.sunday...north winds 10 knots or less. waves 2 feet or less. 
.monday...north winds 5 to 15 knots. waves 1 to 2 feet. 
.tuesday...north winds 10 knots or less becoming southeast 10 to
15 knots. showers likely tuesday night. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 081328
glfle 
expires:202605082015;;219472

open lake forecast for lake erie
national weather service cleveland oh
928 am edt fri may 8 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...
mean sea level pressure wavers around 29.80 inches through 
saturday afternoon as subtle trough axes move eastward across 
lake erie. a cold front is expected to sweep southeastward across
the lake saturday evening through saturday night. behind the 
front, a ridge averaging 30.10 inches should affect lake erie as 
the embedded high pressure center moves from the canadian prairies
to atlantic waters near north carolina on sunday through tuesday.


lez061-168-169-082015-
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-
928 am edt fri may 8 2026

.this afternoon...southwest winds 5 to 10 knots. waves around
1 foot. 
.tonight...south winds 10 knots or less. a slight chance of
showers from late evening on. waves around 1 foot. 
.saturday...south winds 5 to 15 knots becoming southwest. a
chance of showers in the afternoon. waves 2 feet or less. 
.saturday night...southwest winds 5 to 15 knots becoming
northwest. a chance of showers. waves 1 to 3 feet. 
.sunday...northwest winds 10 knots or less becoming north. waves
2 feet or less. 
.monday...north winds 5 to 10 knots. waves 2 feet or less. 
.tuesday...northwest winds 10 knots or less becoming southeast. a
chance of rain showers tuesday night. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 081328
glfsc 
expires:202605082130;;219469

lake st clair forecast
national weather service detroit/pontiac mi
928 am edt fri may 8 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 and variable winds today organize out of the
southwest saturday. breezy southwest flow is expected ahead of a
cold front that sweeps across the area saturday night bringing
shower and thunderstorm chances to the great lakes.


lcz460-082130-
lake st clair-
928 am edt fri may 8 2026

.rest of today...light and variable winds becoming southwest 5 to 10
knots in the afternoon. mostly sunny. waves 2 feet or less.
.tonight...south winds 5 to 10 knots. partly cloudy. waves 2 feet or
less.
.saturday...southwest winds 5 to 10 knots increasing to 15 to 20
knots. partly sunny. light showers likely and a chance of
thunderstorms early in the afternoon. waves 2 feet or less.
.saturday night...west winds 15 to 20 knots becoming northwest 10 to
15 knots by midnight...then becoming north 5 to 10 knots after
midnight. mostly clear. waves 2 feet or less.
.sunday...north winds 5 to 10 knots. mostly sunny becoming partly
sunny in the afternoon becoming mostly cloudy. waves 2 feet or less.
.monday...northeast winds 10 to 15 knots. mostly clear. waves 2 feet
or less.
.tuesday...southeast winds 10 to 15 knots. partly cloudy. a chance
of showers. waves 2 feet or less.

$$

fzus63 kdtx 081327
glflh 
expires:202605082130;;219463

open lake forecast for lake huron
national weather service detroit/pontiac mi
927 am edt fri may 8 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 and variable winds today organize out of the
southwest saturday. breezy southwest flow is expected ahead of a
cold front that sweeps across the area saturday night bringing
shower and thunderstorm chances to the great lakes.


lhz361-362-082130-
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-
927 am edt fri may 8 2026

.rest of today...southwest winds 5 to 10 knots backing to the
southeast late in the afternoon. waves 1 to 3 feet. 
.tonight...southeast winds 5 to 10 knots increasing to 10 to
15 knots after midnight. waves 1 to 3 feet. 
.saturday...south winds 10 to 15 knots. showers likely in the
morning...then a chance of showers in the afternoon. waves 3 to
5 feet. 
.saturday night...northwest winds 15 to 20 knots. waves 5 to
7 feet. waves occasionally around 10 feet. 
.sunday...west winds 10 to 15 knots becoming northwest 15 to
20 knots late in the evening. waves 3 to 5 feet. 
.monday...northwest winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet . 
.tuesday...northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming southeast 5 to
10 knots . a chance of showers by midnight. waves 2 feet or less.


$$

fzus63 kdtx 081327
glflh 
expires:202605082130;;219464

open lake forecast for lake huron
national weather service detroit/pontiac mi
927 am edt fri may 8 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 and variable winds today organize out of the
southwest saturday. breezy southwest flow is expected ahead of a
cold front that sweeps across the area saturday night bringing
shower and thunderstorm chances to the great lakes.


lhz363-462>464-082130-
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-
927 am edt fri may 8 2026

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


$$

fzus63 kmkx 081409
glflm 
expires:202605082115;;220445

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
909 am cdt fri may 8 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...

weak low pressure around 29.6 inches will shift southeast from
northern minnesota to western lake superior today, then across the
upper peninsula of michigan tonight and further to the southeast
on saturday. the low will drag a cold front across the region 
during this time, exiting to the southeast of the lake later on 
saturday.

modest to breezy south winds will develop today before shifting 
southwest late tonight, and west on saturday with the cold 
frontal passage. light northwest to north winds should then occur
saturday night, as the front exits the region. 

high pressure around 30.3 inches is then expected to move
southeast across the region sunday night into monday. relatively 
light and variable winds are expected through this period.


lmz080-669-671-673-675-777-779-870-872-874-876-878-082115-
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-
909 am cdt fri may 8 2026

sheboygan wi to pentwater mi south...

.rest of today...south winds 10 to 20 kt increasing to 15 to
25 kt. waves 1 to 3 ft building to 2 to 4 ft. 
.tonight...south winds 15 to 25 kt becoming southwest. scattered
sprinkles overnight. waves 3 to 5 ft. 
.saturday...southwest winds 10 to 20 kt becoming west. waves 3 to
5 ft subsiding to 2 to 4 ft. 
.saturday night...north winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 3 ft. 
.sunday...north winds 10 to 15 kt becoming northeast. waves 1 to
2 ft. 
.sunday night...northeast winds 5 to 10 kt. waves 1 to 2 ft.
.monday...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.tuesday...southeast winds 15 to 25 kt increasing to 30 kt. rain
showers likely. waves 3 to 5 ft building to 4 to 7 ft
occasionally to 9 ft.  

$$

fzus63 kmkx 081409
glflm 
expires:202605082115;;220444

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
909 am cdt fri may 8 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...

weak low pressure around 29.6 inches will shift southeast from
northern minnesota to western lake superior today, then across the
upper peninsula of michigan tonight and further to the southeast
on saturday. the low will drag a cold front across the region 
during this time, exiting to the southeast of the lake later on 
saturday.

modest to breezy south winds will develop today before shifting 
southwest late tonight, and west on saturday with the cold 
frontal passage. light northwest to north winds should then occur
saturday night, as the front exits the region. 

high pressure around 30.3 inches is then expected to move
southeast across the region sunday night into monday. relatively 
light and variable winds are expected through this period.


lmz261-362-364-366-563-565-567-868-082115-
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-
909 am cdt fri may 8 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 10 to 20 kt becoming south 15 to
25 kt. waves 1 to 3 ft building to 2 to 4 ft. 
.tonight...south winds 15 to 25 kt becoming southwest. scattered
rain showers. waves 3 to 5 ft. 
.saturday...west winds 10 to 20 kt becoming northwest. scattered
rain showers in the morning. waves 3 to 5 ft subsiding to 2 to
4 ft. 
.saturday night...north winds 10 to 20 kt becoming northwest
10 to 15 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.sunday...west winds 10 to 20 kt. waves 1 to 3 ft. 
.sunday night...north winds 10 to 20 kt diminishing to 10 to
15 kt. waves 1 to 2 ft. 
.monday...northwest winds 10 to 15 kt backing to southwest. waves
1 to 2 ft. 
.tuesday...southeast winds 10 to 20 kt increasing to 15 to 25 kt.
chance of rain showers. waves 2 to 4 ft building to 4 to 6 ft
occasionally to 8 ft.  

$$

fzus63 kmqt 081402
glfls 
expires:202605082000;;220098

open lake forecast for lake superior
national weather service marquette mi
1002 am edt fri may 8 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... 

weak troughing of around 29.7 inches over lake superior this morning 
deepens to 29.5 inches by this evening as a 29.4 inch low remains 
over hudson bay. the trough pushes east into quebec by saturday 
afternoon as 30.3 inch high pressure builds over the canadian 
prairie this weekend. the high shifts east to the great lakes at 
30.3 inches by sunday night. ridging persists at around 30.2 inches 
over lake superior through monday, followed by a 29.7 inch trough on 
tuesday as high pressure weakens and shifts to the east coast.



lsz265-082000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1002 am edt fri may 8 2026

.rest of today...southwest winds 10 to 20 knots backing south in
the afternoon. waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots veering west late. a chance
of rain showers. waves calm to 2 feet. 
.saturday...northwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.saturday night...west winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves subsiding to calm to 2 feet. 
.sunday...northwest winds 15 to 25 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.sunday night...northwest winds 10 to 20 knots. waves calm to
2 feet. 
.monday...northwest winds 5 to 15 knots backing southeast. waves
calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of rain showers. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 081402
glfls 
expires:202605082000;;220099

open lake forecast for lake superior
national weather service marquette mi
1002 am edt fri may 8 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... 

weak troughing of around 29.7 inches over lake superior this morning 
deepens to 29.5 inches by this evening as a 29.4 inch low remains 
over hudson bay. the trough pushes east into quebec by saturday 
afternoon as 30.3 inch high pressure builds over the canadian 
prairie this weekend. the high shifts east to the great lakes at 
30.3 inches by sunday night. ridging persists at around 30.2 inches 
over lake superior through monday, followed by a 29.7 inch trough on 
tuesday as high pressure weakens and shifts to the east coast.



lsz266-082000-
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-
1002 am edt fri may 8 2026

.rest of today...west winds 5 to 15 knots backing south in the
afternoon. waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then becoming northwest 10 to 20 knots
late. a chance of rain showers. waves calm to 2 feet. 
.saturday...northwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.saturday night...northwest winds 15 to 25 knots. waves subsiding
to 1 to 3 feet, then building to 2 to 4 feet. 
.sunday...northwest winds 15 to 25 knots. waves 2 to 4 feet. 
.sunday night...northwest winds 10 to 20 knots. waves subsiding
to 1 to 3 feet. 
.monday...northwest winds 5 to 15 knots backing south. waves
subsiding to calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots becoming east 5 to
15 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 081402
glfls 
expires:202605082000;;220100

open lake forecast for lake superior
national weather service marquette mi
1002 am edt fri may 8 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... 

weak troughing of around 29.7 inches over lake superior this morning 
deepens to 29.5 inches by this evening as a 29.4 inch low remains 
over hudson bay. the trough pushes east into quebec by saturday 
afternoon as 30.3 inch high pressure builds over the canadian 
prairie this weekend. the high shifts east to the great lakes at 
30.3 inches by sunday night. ridging persists at around 30.2 inches 
over lake superior through monday, followed by a 29.7 inch trough on 
tuesday as high pressure weakens and shifts to the east coast.



lsz267-082000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1002 am edt fri may 8 2026

.rest of today...west winds 5 to 15 knots backing southwest in
the afternoon, then backing southeast late. waves calm to 2 feet.
.tonight...southeast winds 10 to 20 knots veering south after
midnight. a chance of rain showers. flurries after midnight.
waves calm to 2 feet. 
.saturday...northwest winds 10 to 20 knots increasing to 20 to
30 knots late. sprinkles through early afternoon. waves building
to 3 to 5 feet occasionally to 7 feet. 
.saturday night...northwest winds 20 to 30 knots diminishing to
10 to 20 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.sunday...northwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...northwest winds 5 to 15 knots backing south. waves
subsiding to calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots backing east. waves calm
to 2 feet. 

$$

fzus63 kmqt 081402
glfls 
expires:202605082000;;220095

open lake forecast for lake superior
national weather service marquette mi
1002 am edt fri may 8 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... 

weak troughing of around 29.7 inches over lake superior this morning 
deepens to 29.5 inches by this evening as a 29.4 inch low remains 
over hudson bay. the trough pushes east into quebec by saturday 
afternoon as 30.3 inch high pressure builds over the canadian 
prairie this weekend. the high shifts east to the great lakes at 
30.3 inches by sunday night. ridging persists at around 30.2 inches 
over lake superior through monday, followed by a 29.7 inch trough on 
tuesday as high pressure weakens and shifts to the east coast.



lsz162-082000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1002 am edt fri may 8 2026 /902 am cdt fri may 8 2026/

.rest of today...southwest winds 5 to 15 knots backing south
late. sprinkles by mid afternoon. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots backing west after midnight,
then becoming northwest 10 to 20 knots late. a chance of rain
showers through midnight. waves calm to 2 feet. 
.saturday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots late. waves calm to 2 feet. 
.saturday night...northwest winds 10 to 20 knots. waves calm to
2 feet. 
.sunday...northwest winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots backing east. waves calm to
2 feet. 
.tuesday...east winds 10 to 20 knots becoming north 5 to
15 knots. a chance of rain showers. waves calm to 2 feet. 

$$

fzus63 kmqt 081402
glfls 
expires:202605082000;;220096

open lake forecast for lake superior
national weather service marquette mi
1002 am edt fri may 8 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... 

weak troughing of around 29.7 inches over lake superior this morning 
deepens to 29.5 inches by this evening as a 29.4 inch low remains 
over hudson bay. the trough pushes east into quebec by saturday 
afternoon as 30.3 inch high pressure builds over the canadian 
prairie this weekend. the high shifts east to the great lakes at 
30.3 inches by sunday night. ridging persists at around 30.2 inches 
over lake superior through monday, followed by a 29.7 inch trough on 
tuesday as high pressure weakens and shifts to the east coast.



lsz263-082000-
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-
1002 am edt fri may 8 2026

.rest of today...southwest winds 5 to 15 knots increasing to
10 to 20 knots in the afternoon. waves calm to 2 feet building to
1 to 3 feet, then subsiding to calm to 2 feet. 
.tonight...southwest winds 5 to 15 knots veering northwest late.
a chance of rain showers through midnight. waves subsiding to
calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet. 
.saturday night...northwest winds 5 to 15 knots. waves building
to 1 to 3 feet, then subsiding to calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.sunday night...west winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots backing southeast. waves calm
to 2 feet. 
.tuesday...east winds 5 to 15 knots backing north. a chance of
rain showers. waves calm to 2 feet. 

$$

fzus63 kmqt 081402
glfls 
expires:202605082000;;220097

open lake forecast for lake superior
national weather service marquette mi
1002 am edt fri may 8 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... 

weak troughing of around 29.7 inches over lake superior this morning 
deepens to 29.5 inches by this evening as a 29.4 inch low remains 
over hudson bay. the trough pushes east into quebec by saturday 
afternoon as 30.3 inch high pressure builds over the canadian 
prairie this weekend. the high shifts east to the great lakes at 
30.3 inches by sunday night. ridging persists at around 30.2 inches 
over lake superior through monday, followed by a 29.7 inch trough on 
tuesday as high pressure weakens and shifts to the east coast.



lsz264-082000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1002 am edt fri may 8 2026

.rest of today...southwest winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...south winds 5 to 15 knots veering southwest after
midnight, then veering north late. sprinkles through midnight.
waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots backing west late. waves
calm to 2 feet. 
.saturday night...west winds 5 to 15 knots veering northwest
after midnight. waves building to 1 to 3 feet, then subsiding to
calm to 2 feet. 
.sunday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots veering north after
midnight. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots backing south. waves calm
to 2 feet. 
.tuesday...southeast winds 5 to 15 knots backing east. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 

$$