fzus61 kbuf 221403
glflo 
expires:202605222100;;457010

open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt fri may 22 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 large 30.4 inch high will build across the great lakes 
today, before sliding east off the new england coast tonight. this 
high will strengthen to 30.6 inches as it anchors over atlantic 
canada through sunday. a 29.9 inch low and attendant warm front will 
then approach the lower great lakes late tonight and saturday, 
before weakening and sliding eastward sunday. a 30.1 inch high will 
settle across the region monday through tuesday. a cold front 
associated with a 29.8 inch low over new england will drop south 
across the lake on wednesday.


loz063>065-222100-
lake ontario open waters from hamlin beach to the saint lawrence
river-
1003 am edt fri may 22 2026

.this afternoon...northeast winds 10 to 15 knots. waves 1 to
3 feet. 
.tonight...northeast winds 10 to 15 knots becoming east. waves
1 to 3 feet building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.saturday...southeast winds 10 to 15 knots increasing to 15 to
25 knots. rain. waves 1 to 3 feet building to 3 to 5 feet. 
.saturday night...southeast winds 15 to 25 knots. rain in the
evening, then showers overnight. waves 3 to 6 feet. 
.sunday...southeast winds 15 to 25 knots becoming south. showers
during the day, then a chance of showers sunday night. waves 3 to
5 feet subsiding to 1 to 3 feet. 
.monday...southwest winds 10 knots or less. a chance of showers
during the day. waves 2 feet or less. 
.tuesday...southwest winds 10 knots or less becoming west. waves
1 foot or less. 

$$

fzus61 kbuf 221403
glflo 
expires:202605222100;;457009

open lake forecast for lake ontario
national weather service buffalo ny
1003 am edt fri may 22 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 large 30.4 inch high will build across the great lakes 
today, before sliding east off the new england coast tonight. this 
high will strengthen to 30.6 inches as it anchors over atlantic 
canada through sunday. a 29.9 inch low and attendant warm front will 
then approach the lower great lakes late tonight and saturday, 
before weakening and sliding eastward sunday. a 30.1 inch high will 
settle across the region monday through tuesday. a cold front 
associated with a 29.8 inch low over new england will drop south 
across the lake on wednesday.


loz062-222100-
lake ontario open waters from the niagara river to hamlin beach-
1003 am edt fri may 22 2026

.this afternoon...east winds 15 to 20 knots. waves 2 to 4 feet. 
.tonight...east winds 15 to 20 knots. waves 2 to 4 feet. 
.saturday...east winds 15 to 25 knots. rain. waves 3 to 6 feet
building to 4 to 7 feet. waves occasionally around 9 feet. 
.saturday night...east winds 15 to 25 knots. rain in the evening,
then showers overnight. waves 5 to 8 feet. waves occasionally
around 10 feet. 
.sunday...southeast winds 15 to 20 knots becoming southwest and
diminishing to less than 10 knots. showers during the day, then a
chance of showers sunday night. waves 3 to 5 feet subsiding to
2 feet or less. 
.monday...light and variable winds. a chance of showers during
the day. waves 1 foot or less. 
.tuesday...west winds 10 knots or less. waves 1 foot or less. 

$$

fzus61 kcle 221317
glfle 
expires:202605222015;;456113

open lake forecast for lake erie
national weather service cleveland oh
917 am edt fri may 22 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 ridge averaging 30.20 inches resides over lake erie today. low 
pressure 29.90 inches moves into the ohio valley late friday night
into saturday morning and move northward through early sunday 
morning dragging a cold front across lake erie. high pressure 
30.10 inches builds into the region late sunday through early next
week.


lez061-169-222015-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
917 am edt fri may 22 2026

.this afternoon...northeast winds 15 to 20 knots. waves 3 to
5 feet. 
.tonight...northeast winds 15 to 20 knots becoming east. a slight
chance of showers after midnight. a chance of showers late. waves
3 to 5 feet subsiding to 1 to 3 feet. 
.saturday...east winds 15 to 20 knots. showers. waves 2 to
4 feet. 
.saturday night...southeast winds 15 to 20 knots becoming south.
showers. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...south winds 10 to 15 knots becoming light and variable.
a chance of showers sunday night. waves 2 feet or less. 
.monday...light and variable winds. waves 1 foot or less. 
.tuesday...light and variable winds. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 221317
glfle 
expires:202605222015;;456111

open lake forecast for lake erie
national weather service cleveland oh
917 am edt fri may 22 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 ridge averaging 30.20 inches resides over lake erie today. low 
pressure 29.90 inches moves into the ohio valley late friday night
into saturday morning and move northward through early sunday 
morning dragging a cold front across lake erie. high pressure 
30.10 inches builds into the region late sunday through early next
week.


lez162-163-222015-
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-
917 am edt fri may 22 2026

.this afternoon...east winds 20 to 25 knots. waves 3 to 6 feet
building to 4 to 7 feet. waves occasionally around 9 feet. 
.tonight...east winds 20 to 25 knots. a chance of showers in the
evening, then showers with a slight chance of thunderstorms after
midnight. waves 4 to 7 feet subsiding to 3 to 5 feet. waves
occasionally around 9 feet. 
.saturday...east winds 15 to 25 knots diminishing to 10 to
15 knots. showers in the morning, then showers likely with a
chance of thunderstorms in the afternoon. waves 3 to 5 feet
subsiding to 1 to 3 feet. 
.saturday night...east winds 5 to 15 knots becoming west. showers
in the evening, then a chance of showers overnight. waves 1 to
3 feet subsiding to 1 foot or less. 
.sunday...west winds 10 knots or less becoming northwest. a
chance of showers. waves 1 foot or less. 
.monday...north winds less than 10 knots becoming southeast.
waves 1 foot or less. 
.tuesday...southeast winds 10 knots or less becoming south. waves
1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 221317
glfle 
expires:202605222015;;456112

open lake forecast for lake erie
national weather service cleveland oh
917 am edt fri may 22 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 ridge averaging 30.20 inches resides over lake erie today. low 
pressure 29.90 inches moves into the ohio valley late friday night
into saturday morning and move northward through early sunday 
morning dragging a cold front across lake erie. high pressure 
30.10 inches builds into the region late sunday through early next
week.


lez164>168-222015-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
vermilion to avon point oh beyond 5 nm off shoreline to us-
canadian border-
avon point to willowick oh beyond 5 nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
917 am edt fri may 22 2026

.this afternoon...east winds 15 to 25 knots. waves 4 to 7 feet.
waves occasionally around 9 feet. 
.tonight...east winds 15 to 25 knots. a slight chance of showers
in the evening, then a chance of showers after midnight. showers
with a slight chance of thunderstorms late. waves 4 to 7 feet
subsiding to 3 to 6 feet. waves occasionally around 9 feet. 
.saturday...east winds 15 to 25 knots becoming southeast.
showers. waves 3 to 6 feet. 
.saturday night...southeast winds 15 to 20 knots becoming south
10 to 15 knots. showers with a chance of thunderstorms in the
evening, then a chance of showers overnight. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.sunday...west winds 10 knots or less becoming southwest. a
chance of showers sunday night. waves 2 feet or less. 
.monday...north winds less than 10 knots becoming southeast.
waves 1 foot or less. 
.tuesday...south winds less than 10 knots. waves 1 foot or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 221354
glfsc 
expires:202605222200;;456648

lake st clair forecast
national weather service detroit/pontiac mi
954 am edt fri may 22 2026

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...low pressure, 29.90 inches, tracks from the ohio
valley into lake huron this weekend. breezy east flow today and
tonight becomes westerly with the passage of the low saturday.
rain and a few thunderstorms possible this weekend, especially
saturday morning.


lcz460-222200-
lake st clair-
954 am edt fri may 22 2026

...small craft advisory in effect through saturday evening...

.rest of today...east winds 20 to 25 knots diminishing to 15 to 20
knots in the afternoon. mostly cloudy. waves 2 to 4 feet.
.tonight...east winds 20 to 25 knots. gusts to 30 knots in the
evening then gusts to 30 knots early in the morning. cloudy. showers
likely early in the morning. waves 2 to 4 feet.
.saturday...east winds to 30 knots diminishing to 20 to 25 knots
early in the afternoon. showers until late afternoon...then light
showers early in the afternoon. waves 3 to 5 feet. waves 
occasionally around 7 feet. 
.saturday night...east winds 15 to 20 knots diminishing to 10 to 15
knots by midnight...then veering to the west after midnight. light
showers early in the evening...then a chance of light showers by
midnight. waves 1 to 3 feet.
.sunday...southwest winds 5 to 10 knots becoming light and variable.
mostly cloudy becoming partly sunny in the afternoon becoming mostly
cloudy. a chance of light showers in the afternoon and evening.
waves 2 feet or less.
.monday...southeast winds 5 to 10 knots. partly cloudy. waves nearly
calm.
.tuesday...south winds 5 to 10 knots. partly cloudy. waves 2 feet or
less.

$$

fzus63 kdtx 221353
glflh 
expires:202605222200;;456642

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 am edt fri may 22 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...low pressure, 29.90 inches, tracks from the ohio
valley into lake huron this weekend. breezy east flow today and
tonight becomes westerly with the passage of the low saturday.
rain and a few thunderstorms possible this weekend, especially
saturday morning.


lhz462>464-222200-
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-
953 am edt fri may 22 2026

.rest of today...northeast winds 10 to 15 knots. waves 2 to
4 feet. 
.tonight...northeast winds 10 to 15 knots becoming east 15 to
20 knots in the late evening and overnight. waves 3 to 5 feet. 
.saturday...east winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late morning and
early afternoon...then decreasing to 15 to 20 knots with gusts to
around 30 knots early in the afternoon. showers likely in the
morning...then showers in the afternoon. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday night...east winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. showers in the evening...then a chance
of showers after midnight. waves 4 to 6 feet. 
.sunday...southwest winds 5 to 10 knots backing to the east late
in the afternoon...then becoming light and variable late in the
evening. a chance of showers. waves 2 to 4 feet subsiding to
2 feet or less. waves occasionally around 8 feet. 
.monday...light and variable winds becoming northeast 5 to
10 knots early in the evening...then veering to the south by
midnight. waves 2 feet or less. 
.tuesday...light and variable winds becoming south 5 to 10 knots.
waves 2 feet or less. 


$$

fzus63 kdtx 221353
glflh 
expires:202605222200;;456641

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 am edt fri may 22 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...low pressure, 29.90 inches, tracks from the ohio
valley into lake huron this weekend. breezy east flow today and
tonight becomes westerly with the passage of the low saturday.
rain and a few thunderstorms possible this weekend, especially
saturday morning.


lhz362-363-222200-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
953 am edt fri may 22 2026

.rest of today...east winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet late in the afternoon. 
.tonight...east winds 15 to 20 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.saturday...east winds 15 to 20 knots. gusts to 30 knots in the
late morning and afternoon. a chance of showers in the morning...
then showers likely in the afternoon. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.saturday night...east winds 15 to 20 knots with gusts to around
30 knots becoming northeast 10 to 15 knots after midnight.
showers likely in the evening. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.sunday...north winds 5 to 10 knots veering to the east late in
the afternoon...then becoming light and variable late in the
evening. waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday...light and variable winds becoming south 5 to 10 knots.
waves 2 feet or less. 
.tuesday...south winds 5 to 10 knots backing to the southeast .
waves 2 feet or less. 


$$

fzus63 kdtx 221353
glflh 
expires:202605222200;;456640

open lake forecast for lake huron
national weather service detroit/pontiac mi
953 am edt fri may 22 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...low pressure, 29.90 inches, tracks from the ohio
valley into lake huron this weekend. breezy east flow today and
tonight becomes westerly with the passage of the low saturday.
rain and a few thunderstorms possible this weekend, especially
saturday morning.


lhz361-222200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
953 am edt fri may 22 2026

.rest of today...east winds 10 to 15 knots. waves 1 to 3 feet
building to 3 to 5 feet in the afternoon. 
.tonight...east winds 10 to 15 knots increasing to 20 to
25 knots. waves 4 to 6 feet. waves occasionally around 8 feet. 
.saturday...east winds 20 to 25 knots with gusts to around
30 knots. a chance of showers in the afternoon. waves 6 to
9 feet. waves occasionally around 12 feet. 
.saturday night...east winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots after midnight. a chance of
showers in the evening. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.sunday...east winds 5 to 10 knots becoming light and variable.
waves 3 to 5 feet subsiding to 1 to 3 feet. 
.monday...light and variable winds becoming west 5 to 10 knots
until early evening...then backing to the south by midnight.
waves 2 feet or less. 
.tuesday...southwest winds 5 to 10 knots veering to the west .
waves 2 feet or less. 


$$

fzus63 kmkx 221359
glflm 
expires:202605222115;;456829

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 am cdt fri may 22 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 of 30.4 inches centered over the upper great lakes 
will gradually shift eastward through the end of the week. 
modest to breezy east to northeast winds are expected into 
tonight, with winds becoming northerly on saturday as low pressure
of 29.9 inches lifts northeast to western lake erie. southerly 
winds are then expected to develop later saturday night the higher
pressure to the east pushes out.


lmz261-362-364-366-563-565-567-868-222115-
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-
859 am cdt fri may 22 2026

sheboygan wi to pentwater mi north...

.rest of today...east winds 10 to 20 kt becoming northeast to
30 kt. waves 2 to 4 ft building to 3 to 5 ft. 
.tonight...east winds to 30 kt. chance of rain showers overnight.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.saturday...east winds to 30 kt becoming northeast. waves 4 to
6 ft occasionally to 8 ft. 
.saturday night...east winds to 30 kt becoming southeast 10 to
20 kt overnight. waves 4 to 6 ft occasionally to 8 ft subsiding
to 2 to 4 ft. 
.sunday...south winds 5 to 10 kt increasing to 10 to 15 kt in the
afternoon. waves 1 to 2 ft. 
.sunday night...south winds 10 to 15 kt becoming southwest. waves
1 ft or less. 
.monday...south winds 5 to 10 kt increasing to 10 to 15 kt. waves
1 to 2 ft. 
.tuesday...southwest winds 10 to 20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 221359
glflm 
expires:202605222115;;456830

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 am cdt fri may 22 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 of 30.4 inches centered over the upper great lakes 
will gradually shift eastward through the end of the week. 
modest to breezy east to northeast winds are expected into 
tonight, with winds becoming northerly on saturday as low pressure
of 29.9 inches lifts northeast to western lake erie. southerly 
winds are then expected to develop later saturday night the higher
pressure to the east pushes out.


lmz080-669-671-673-675-777-779-870-872-874-876-878-222115-
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-
859 am cdt fri may 22 2026

sheboygan wi to pentwater mi south...

.rest of today...east winds 15 to 25 kt becoming northeast. waves
3 to 5 ft. 
.tonight...east winds 15 to 25 kt diminishing to 10 to 20 kt.
chance of sprinkles in the evening, then chance of showers
overnight. waves 2 to 4 ft. 
.saturday...east winds 10 to 20 kt becoming north 10 to 15 kt.
chance of rain showers in the morning. waves 2 to 4 ft. 
.saturday night...northeast winds 5 to 10 kt becoming southeast.
waves 1 to 2 ft. 
.sunday...south winds 5 to 10 kt. chance of rain showers. waves
1 ft or less. 
.sunday night...southeast winds 5 to 10 kt becoming south. waves
1 ft or less. 
.monday...south winds 5 to 10 kt becoming southeast. waves 1 to
2 ft. 
.tuesday...south winds 10 to 15 kt. waves 1 to 2 ft.  

$$

fzus63 kmqt 221401
glfls 
expires:202605222000;;456906

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri may 22 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... 

remnant high pressure ridging of 30.3 to 30.4 inches remains over 
lake superior today as the parent high shifts east into new england 
and quebec. meanwhile, a 29.8 inch low develops over the southern 
plains and lifts toward the lower great lakes. simultaneously, 
another 29.7 inch low lifts over the northern plains towards angle 
inlet. the lows gradually weaken to around 29.9 inches as they lift 
over southern ontario and eastern manitoba saturday into sunday, 
respectively. in response to these lows, weak troughing of around 
30.0 inches passes northward over lake superior saturday night into 
sunday night, before ridging of around 30.0 inches returns on 
monday. behind this, expect weak troughing of around 29.9 inches to 
return to the lake by tuesday morning.



lsz264-222000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt fri may 22 2026

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

$$

fzus63 kmqt 221401
glfls 
expires:202605222000;;456907

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri may 22 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... 

remnant high pressure ridging of 30.3 to 30.4 inches remains over 
lake superior today as the parent high shifts east into new england 
and quebec. meanwhile, a 29.8 inch low develops over the southern 
plains and lifts toward the lower great lakes. simultaneously, 
another 29.7 inch low lifts over the northern plains towards angle 
inlet. the lows gradually weaken to around 29.9 inches as they lift 
over southern ontario and eastern manitoba saturday into sunday, 
respectively. in response to these lows, weak troughing of around 
30.0 inches passes northward over lake superior saturday night into 
sunday night, before ridging of around 30.0 inches returns on 
monday. behind this, expect weak troughing of around 29.9 inches to 
return to the lake by tuesday morning.



lsz265-222000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt fri may 22 2026

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

$$

fzus63 kmqt 221401
glfls 
expires:202605222000;;456904

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri may 22 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... 

remnant high pressure ridging of 30.3 to 30.4 inches remains over 
lake superior today as the parent high shifts east into new england 
and quebec. meanwhile, a 29.8 inch low develops over the southern 
plains and lifts toward the lower great lakes. simultaneously, 
another 29.7 inch low lifts over the northern plains towards angle 
inlet. the lows gradually weaken to around 29.9 inches as they lift 
over southern ontario and eastern manitoba saturday into sunday, 
respectively. in response to these lows, weak troughing of around 
30.0 inches passes northward over lake superior saturday night into 
sunday night, before ridging of around 30.0 inches returns on 
monday. behind this, expect weak troughing of around 29.9 inches to 
return to the lake by tuesday morning.



lsz162-222000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt fri may 22 2026 /900 am cdt fri may 22 2026/

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

$$

fzus63 kmqt 221401
glfls 
expires:202605222000;;456909

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri may 22 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... 

remnant high pressure ridging of 30.3 to 30.4 inches remains over 
lake superior today as the parent high shifts east into new england 
and quebec. meanwhile, a 29.8 inch low develops over the southern 
plains and lifts toward the lower great lakes. simultaneously, 
another 29.7 inch low lifts over the northern plains towards angle 
inlet. the lows gradually weaken to around 29.9 inches as they lift 
over southern ontario and eastern manitoba saturday into sunday, 
respectively. in response to these lows, weak troughing of around 
30.0 inches passes northward over lake superior saturday night into 
sunday night, before ridging of around 30.0 inches returns on 
monday. behind this, expect weak troughing of around 29.9 inches to 
return to the lake by tuesday morning.



lsz267-222000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt fri may 22 2026

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

$$

fzus63 kmqt 221401
glfls 
expires:202605222000;;456908

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri may 22 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... 

remnant high pressure ridging of 30.3 to 30.4 inches remains over 
lake superior today as the parent high shifts east into new england 
and quebec. meanwhile, a 29.8 inch low develops over the southern 
plains and lifts toward the lower great lakes. simultaneously, 
another 29.7 inch low lifts over the northern plains towards angle 
inlet. the lows gradually weaken to around 29.9 inches as they lift 
over southern ontario and eastern manitoba saturday into sunday, 
respectively. in response to these lows, weak troughing of around 
30.0 inches passes northward over lake superior saturday night into 
sunday night, before ridging of around 30.0 inches returns on 
monday. behind this, expect weak troughing of around 29.9 inches to 
return to the lake by tuesday morning.



lsz266-222000-
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-
1000 am edt fri may 22 2026

.rest of today...southeast winds 10 to 20 knots backing east in
the afternoon, then increasing to 15 to 25 knots late. waves calm
to 2 feet building to 1 to 3 feet. 
.tonight...southeast winds 15 to 25 knots diminishing to 10 to
20 knots after midnight, then increasing to 15 to 25 knots late.
waves building to 2 to 4 feet. 
.saturday...southeast winds 15 to 25 knots increasing to 20 to
30 knots late. a chance of showers. waves building to 4 to 7 feet
occasionally to 9 feet. 
.saturday night...southeast winds 20 to 30 knots diminishing to
10 to 20 knots after midnight. a chance of rain showers. waves
subsiding to 2 to 4 feet. 
.sunday...south winds 5 to 15 knots. a slight chance of rain
showers through early afternoon. waves subsiding to calm to
2 feet. 
.sunday night...south winds 5 to 15 knots veering southwest after
midnight. waves calm to 2 feet. 
.monday...southeast winds 5 to 15 knots becoming south 10 to
20 knots. waves building to 1 to 3 feet. 
.tuesday...southwest winds 5 to 15 knots backing east. waves
subsiding to calm to 2 feet. 

$$

fzus63 kmqt 221401
glfls 
expires:202605222000;;456905

open lake forecast for lake superior
national weather service marquette mi
1000 am edt fri may 22 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... 

remnant high pressure ridging of 30.3 to 30.4 inches remains over 
lake superior today as the parent high shifts east into new england 
and quebec. meanwhile, a 29.8 inch low develops over the southern 
plains and lifts toward the lower great lakes. simultaneously, 
another 29.7 inch low lifts over the northern plains towards angle 
inlet. the lows gradually weaken to around 29.9 inches as they lift 
over southern ontario and eastern manitoba saturday into sunday, 
respectively. in response to these lows, weak troughing of around 
30.0 inches passes northward over lake superior saturday night into 
sunday night, before ridging of around 30.0 inches returns on 
monday. behind this, expect weak troughing of around 29.9 inches to 
return to the lake by tuesday morning.



lsz263-222000-
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-
1000 am edt fri may 22 2026

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

$$