fzus61 kbuf 240803
glflo 
expires:202605241500;;556077

open lake forecast for lake ontario
national weather service buffalo ny
403 am edt sun may 24 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 strengthen to 30.6 inches as 
it anchors over atlantic canada today. a 30.0 inch low and attendant 
warm front will cross the lower great lakes this morning, before 
weakening and sliding eastward by tonight. 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 morning. high pressure over canada will 
start to expand south over the lake on thursday.


loz062-241500-
lake ontario open waters from the niagara river to hamlin beach-
403 am edt sun may 24 2026

.today...east winds 15 to 20 knots diminishing to less than
10 knots this afternoon. showers likely early, then a chance of
showers late this morning. waves 3 to 5 feet subsiding to 1 to
3 feet. 
.tonight...east winds 10 knots or less becoming north. showers
likely. waves 2 feet or less. 
.monday...northwest winds 10 knots or less becoming southwest.
waves 1 foot or less. 
.monday night...southwest winds less than 10 knots. waves 1 foot
or less. 
.tuesday...southwest winds less than 10 knots increasing to 10 to
15 knots. waves 2 feet or less. 
.wednesday...west winds 5 to 10 knots becoming north. waves
2 feet or less. 
.thursday...north winds 5 to 10 knots becoming northwest. waves
1 foot or less. 

$$

fzus61 kbuf 240803
glflo 
expires:202605241500;;556078

open lake forecast for lake ontario
national weather service buffalo ny
403 am edt sun may 24 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 strengthen to 30.6 inches as 
it anchors over atlantic canada today. a 30.0 inch low and attendant 
warm front will cross the lower great lakes this morning, before 
weakening and sliding eastward by tonight. 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 morning. high pressure over canada will 
start to expand south over the lake on thursday.


loz063>065-241500-
lake ontario open waters from hamlin beach to the saint lawrence
river-
403 am edt sun may 24 2026

.today...southeast winds 15 to 25 knots. rain early, then a
chance of showers late this morning. waves 3 to 6 feet. 
.tonight...southeast winds 15 to 20 knots diminishing to 10 to
15 knots. a chance of showers early, then showers from late
evening on. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.monday...south winds 5 to 10 knots becoming west. a chance of
showers in the morning. waves 2 feet or less. 
.monday night...southwest winds 10 knots or less becoming south.
waves 1 foot or less. 
.tuesday...south winds 5 to 10 knots becoming west. waves 2 feet
or less. 
.wednesday...west winds 5 to 10 knots becoming north. waves
2 feet or less. 
.thursday...north winds 5 to 10 knots becoming northwest. waves
2 feet or less. 

$$

fzus61 kcle 240800
glfle 
expires:202605241415;;555848

open lake forecast for lake erie
national weather service cleveland oh
400 am edt sun may 24 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...
low pressure 30.00 inches will move into the region today sweeping
a cold front across the lake this evening. high pressure 30.10
inches builds into the region on monday and will influence lake
erie through mid-week. 


lez061-167>169-241415-
ripley to buffalo ny extending from 5nm off shoreline to us-
canadian border-willowick to geneva-on-the-
lake oh beyond 5nm off shoreline to us-canadian border-geneva-on-
the-lake to conneaut oh beyond 5 nm off shoreline to us-
canadian border-
conneaut oh to ripley ny beyond 5 nm off shoreline to us-
canadian border-
400 am edt sun may 24 2026

.today...south winds 5 to 15 knots becoming northeast less than
10 knots. a chance of showers with a slight chance of
thunderstorms late. waves 1 to 3 feet subsiding to 1 foot or
less. 
.tonight...east winds less than 10 knots becoming northwest. a
chance of showers with a slight chance of thunderstorms in the
evening, then a slight chance of showers after midnight. waves
1 foot or less. 
.monday...northwest winds less than 10 knots. waves 1 foot or
less. 
.monday night...light and variable winds. waves 1 foot or less. 
.tuesday...light and variable winds. waves 1 foot or less. 
.wednesday...southwest winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.thursday...northeast winds 5 to 10 knots becoming north. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 240800
glfle 
expires:202605241415;;555847

open lake forecast for lake erie
national weather service cleveland oh
400 am edt sun may 24 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...
low pressure 30.00 inches will move into the region today sweeping
a cold front across the lake this evening. high pressure 30.10
inches builds into the region on monday and will influence lake
erie through mid-week. 


lez164>166-241415-
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-
400 am edt sun may 24 2026

.today...southwest winds less than 10 knots. a slight chance of
showers and thunderstorms early this afternoon. a chance of
showers with a slight chance of thunderstorms late. waves 1 foot
or less. 
.tonight...northeast winds 10 knots or less becoming northwest. a
chance of showers with a slight chance of thunderstorms early,
then a chance of showers late in the evening. waves 1 foot or
less. 
.monday...northwest winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.monday night...east winds less than 10 knots. waves 1 foot or
less. 
.tuesday...light and variable winds. waves 1 foot or less. 
.wednesday...southwest winds 10 knots or less becoming northeast.
waves 1 foot or less. 
.thursday...northeast winds 5 to 15 knots becoming north. waves
1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus61 kcle 240800
glfle 
expires:202605241415;;555846

open lake forecast for lake erie
national weather service cleveland oh
400 am edt sun may 24 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...
low pressure 30.00 inches will move into the region today sweeping
a cold front across the lake this evening. high pressure 30.10
inches builds into the region on monday and will influence lake
erie through mid-week. 


lez162-163-241415-
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-
400 am edt sun may 24 2026

.today...southwest winds less than 10 knots. a chance of showers
with a slight chance of thunderstorms this afternoon. waves
1 foot or less. 
.tonight...east winds 10 knots or less becoming northwest. a
chance of showers early. waves 1 foot or less. 
.monday...north winds 10 knots or less becoming southeast. waves
1 foot or less. 
.monday night...southeast winds less than 10 knots. waves 1 foot
or less. 
.tuesday...light and variable winds. waves 1 foot or less. 
.wednesday...northwest winds 10 knots or less becoming northeast.
a chance of showers during the day. waves 1 foot or less. 
.thursday...northeast winds 10 to 15 knots. waves 2 feet or less.

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 240754
glfsc 
expires:202605241600;;555660

lake st clair forecast
national weather service detroit/pontiac mi
354 am edt sun may 24 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, will lift from eastern
lake erie into central lake huron tonight, weakening to 30.10 
inches. a weak surface front will cross the region sunday, 
providing a chance for showers and isolated thunderstorms. high 
pressure will then expand across the eastern great lakes sunday 
night into monday.


lcz460-241600-
lake st clair-
354 am edt sun may 24 2026

.today...light and variable winds becoming southeast 5 to 10 knots
late in the afternoon. mostly cloudy. patchy fog early in the
morning. a chance of light showers late in the afternoon. waves 2
feet or less.
.tonight...south winds 5 to 10 knots this evening becoming light and
variable...then becoming northwest 5 to 10 knots early in the
morning. mostly cloudy becoming partly cloudy. a chance of light
showers early in the evening. waves 2 feet or less.
.monday...northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming southeast 5 to 10 knots
early in the afternoon. partly sunny until late afternoon then
clearing. waves nearly calm.
.monday night...south winds 5 to 10 knots becoming light and
variable. mostly clear. waves 2 feet or less.
.tuesday...light and variable winds becoming south 5 to 10 knots in
the afternoon and evening. mostly sunny becoming partly cloudy.
waves 2 feet or less.
.wednesday...northeast winds 10 to 15 knots. partly cloudy. waves 2
feet or less.
.thursday...northeast winds 10 to 15 knots. mostly clear. waves 2
feet or less.

$$

fzus63 kdtx 240754
glflh 
expires:202605241600;;555656

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 am edt sun may 24 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, will lift from eastern
lake erie into central lake huron tonight, weakening to 30.10 
inches. a weak surface front will cross the region sunday, 
providing a chance for showers and isolated thunderstorms. high 
pressure will then expand across the eastern great lakes sunday 
night into monday.


lhz361-241600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
354 am edt sun may 24 2026

.today...light and variable winds. patchy fog. a chance of
showers in the afternoon. waves 2 to 4 feet subsiding to 1 to
3 feet in the late morning and afternoon. 
.tonight...light and variable winds. waves 2 feet or less. 
.monday...light and variable winds becoming east 5 to 10 knots
early in the afternoon. waves 2 feet or less. 
.monday night...light and variable winds becoming south 5 to
10 knots after midnight. waves 2 feet or less. 
.tuesday...southwest winds 5 to 10 knots becoming west 10 to
15 knots late in the morning...then decreasing to 5 to 10 knots
late in the evening. waves 1 to 3 feet. 
.wednesday...northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming west 5 to 10 knots .
waves 2 feet or less. 
.thursday...northeast winds 5 to 10 knots becoming 10 to 15 knots
by midnight. waves 2 feet or less. 


$$

fzus63 kdtx 240754
glflh 
expires:202605241600;;555657

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 am edt sun may 24 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, will lift from eastern
lake erie into central lake huron tonight, weakening to 30.10 
inches. a weak surface front will cross the region sunday, 
providing a chance for showers and isolated thunderstorms. high 
pressure will then expand across the eastern great lakes sunday 
night into monday.


lhz362-363-241600-
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-
354 am edt sun may 24 2026

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


$$

fzus63 kdtx 240754
glflh 
expires:202605241600;;555658

open lake forecast for lake huron
national weather service detroit/pontiac mi
354 am edt sun may 24 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, will lift from eastern
lake erie into central lake huron tonight, weakening to 30.10 
inches. a weak surface front will cross the region sunday, 
providing a chance for showers and isolated thunderstorms. high 
pressure will then expand across the eastern great lakes sunday 
night into monday.


lhz462>464-241600-
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-
354 am edt sun may 24 2026

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


$$

fzus63 kmkx 240806
glflm 
expires:202605241530;;556406

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
306 am cdt sun may 24 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...

a weak and dissipating trough of low pressure will slowly move 
east across lake michigan this morning with weak high pressure
quickly following it. winds will mainly remain light southerly 
winds, but light and variable winds may occur at times over the 
far southern basin of the lake. south winds will then continue 
tonight, becoming a bit stronger for monday and tuesday as high 
pressure moves to the lower great lakes. 

some fog may develop across the lake this morning and could linger
into tonight as mild and moist air flows over the cooler waters 
of the lake. 

a cold front may shift southward across the lake toward the 
middle of the week, as high pressure around 30.3 inches builds 
into james bay.


lmz261-362-364-366-563-565-567-868-241530-
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-
306 am cdt sun may 24 2026

sheboygan wi to pentwater mi north...

.today...south winds 5 to 10 kt increasing to 10 to 15 kt.
isolated rain showers this morning. patchy fog. waves 1 to 2 ft. 
.tonight...south winds 10 to 15 kt becoming southwest. patchy
fog. waves 1 to 2 ft. 
.monday...southwest winds 10 to 15 kt becoming south 10 to 20 kt.
patchy fog in the morning. waves 2 to 4 ft. 
.monday night...south winds 10 to 20 kt becoming southwest. waves
3 to 5 ft. 
.tuesday...southwest winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft. 
.tuesday night...southwest winds 10 to 20 kt becoming west 5 to
10 kt. waves 2 to 4 ft. 
.wednesday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 3 ft. 
.thursday...northeast winds 10 to 15 kt becoming north 15 to
25 kt. waves 2 to 4 ft building to 3 to 5 ft.  

$$

fzus63 kmkx 240806
glflm 
expires:202605241530;;556407

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
306 am cdt sun may 24 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...

a weak and dissipating trough of low pressure will slowly move 
east across lake michigan this morning with weak high pressure
quickly following it. winds will mainly remain light southerly 
winds, but light and variable winds may occur at times over the 
far southern basin of the lake. south winds will then continue 
tonight, becoming a bit stronger for monday and tuesday as high 
pressure moves to the lower great lakes. 

some fog may develop across the lake this morning and could linger
into tonight as mild and moist air flows over the cooler waters 
of the lake. 

a cold front may shift southward across the lake toward the 
middle of the week, as high pressure around 30.3 inches builds 
into james bay.


lmz080-669-671-673-675-777-779-870-872-874-876-878-241530-
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-
306 am cdt sun may 24 2026

sheboygan wi to pentwater mi south...

.today...southeast winds 5 to 10 kt. scattered showers and slight
chance of thunderstorms this morning. patchy fog. waves 1 to
2 ft. 
.tonight...south winds 10 to 15 kt. patchy fog. waves 1 to 2 ft. 
.monday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft building to 2 to 4 ft. 
.monday night...south winds 10 to 20 kt diminishing to 10 to
15 kt. waves 2 to 4 ft. 
.tuesday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 2 to 4 ft. 
.tuesday night...southeast winds 10 to 15 kt becoming south.
waves 1 to 3 ft subsiding to 1 to 2 ft. 
.wednesday...northeast winds 5 to 10 kt becoming north 10 to
20 kt. waves 1 ft or less building to 1 to 3 ft. 
.thursday...northeast winds 10 to 15 kt becoming north 15 to
25 kt. waves 2 to 4 ft building to 3 to 5 ft.  

$$

fzus63 kmqt 240801
glfls 
expires:202605242000;;555895

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun may 24 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... 

today, lake superior will be between a 30.6 inch high off the canada 
coast and broad 29.6 inch low pressure over saskatchewan. a 30.1 
inch ridge forms monday over the lower great lakes as the low 
retreats to alberta. monday night, a 29.7 inch trough will be over 
northern ontario, extending 29.9 inch troughing over the lake. by 
tuesday night, a 30.2 inch high over the western shores of hudson 
bay will extend weak ridging over lake superior with 29.4 inch 
troughing forming in the lee of the northern us rockies. pressure 
rises over the lake as the high shifts southeast over northern 
ontario while low pressure over the west weakens on wednesday and 
thursday.



lsz265-242000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt sun may 24 2026

.early this morning...southeast winds 10 to 20 knots. a chance of
rain showers. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.today...south winds 10 to 20 knots veering west in the
afternoon, then becoming southeast 5 to 15 knots late. waves
subsiding to calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots veering southwest late.
waves calm to 2 feet. 
.monday...south winds 5 to 15 knots backing southeast in the
afternoon, then increasing to 10 to 20 knots late. a slight
chance of showers and thunderstorms by mid afternoon. waves calm
to 2 feet. 
.monday night...south winds 5 to 15 knots becoming southwest
15 to 25 knots after midnight. waves calm to 2 feet. 
.tuesday...west winds 10 to 20 knots becoming northeast 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...north winds 5 to 15 knots. waves calm to 2 feet.
.wednesday...northeast winds 5 to 15 knots. waves calm to 2 feet.
.thursday...northeast winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 240801
glfls 
expires:202605242000;;555894

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun may 24 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... 

today, lake superior will be between a 30.6 inch high off the canada 
coast and broad 29.6 inch low pressure over saskatchewan. a 30.1 
inch ridge forms monday over the lower great lakes as the low 
retreats to alberta. monday night, a 29.7 inch trough will be over 
northern ontario, extending 29.9 inch troughing over the lake. by 
tuesday night, a 30.2 inch high over the western shores of hudson 
bay will extend weak ridging over lake superior with 29.4 inch 
troughing forming in the lee of the northern us rockies. pressure 
rises over the lake as the high shifts southeast over northern 
ontario while low pressure over the west weakens on wednesday and 
thursday.



lsz264-242000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt sun may 24 2026

.early this morning...southeast winds 10 to 20 knots. a chance of
rain showers. waves 3 to 6 feet occasionally to 8 feet subsiding
to 2 to 4 feet. 
.today...southwest winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 
.tonight...south winds 5 to 15 knots veering southwest late.
waves calm to 2 feet. 
.monday...southeast winds less than 10 knots increasing to 5 to
15 knots late. waves calm to 2 feet. 
.monday night...south winds 5 to 15 knots veering southwest after
midnight. a slight chance of showers and thunderstorms through
midnight. waves calm to 2 feet. 
.tuesday...west winds 5 to 15 knots diminishing to less than
10 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...north winds less than 10 knots becoming
northeast 5 to 15 knots after midnight. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. waves calm to 2 feet.
.thursday...east winds 5 to 15 knots backing northeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 240801
glfls 
expires:202605242000;;555893

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun may 24 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... 

today, lake superior will be between a 30.6 inch high off the canada 
coast and broad 29.6 inch low pressure over saskatchewan. a 30.1 
inch ridge forms monday over the lower great lakes as the low 
retreats to alberta. monday night, a 29.7 inch trough will be over 
northern ontario, extending 29.9 inch troughing over the lake. by 
tuesday night, a 30.2 inch high over the western shores of hudson 
bay will extend weak ridging over lake superior with 29.4 inch 
troughing forming in the lee of the northern us rockies. pressure 
rises over the lake as the high shifts southeast over northern 
ontario while low pressure over the west weakens on wednesday and 
thursday.



lsz263-242000-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
400 am edt sun may 24 2026

.early this morning...west winds 5 to 15 knots. waves 2 to
4 feet. 
.today...west winds 5 to 15 knots backing south late. waves
subsiding to calm to 2 feet. 
.tonight...south winds 5 to 15 knots veering southwest after
midnight. waves calm to 2 feet. 
.monday...south winds less than 10 knots becoming east 5 to
15 knots in the afternoon, then veering southeast late. waves
calm to 2 feet. 
.monday night...southwest winds 5 to 15 knots. a slight chance of
showers and thunderstorms through midnight. waves calm to 2 feet.
.tuesday...west winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.tuesday night...northeast winds 5 to 15 knots increasing to
10 to 20 knots after midnight. waves calm to 2 feet. 
.wednesday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.thursday...northeast winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 240801
glfls 
expires:202605242000;;555897

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun may 24 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... 

today, lake superior will be between a 30.6 inch high off the canada 
coast and broad 29.6 inch low pressure over saskatchewan. a 30.1 
inch ridge forms monday over the lower great lakes as the low 
retreats to alberta. monday night, a 29.7 inch trough will be over 
northern ontario, extending 29.9 inch troughing over the lake. by 
tuesday night, a 30.2 inch high over the western shores of hudson 
bay will extend weak ridging over lake superior with 29.4 inch 
troughing forming in the lee of the northern us rockies. pressure 
rises over the lake as the high shifts southeast over northern 
ontario while low pressure over the west weakens on wednesday and 
thursday.



lsz267-242000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt sun may 24 2026

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

$$

fzus63 kmqt 240801
glfls 
expires:202605242000;;555892

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun may 24 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... 

today, lake superior will be between a 30.6 inch high off the canada 
coast and broad 29.6 inch low pressure over saskatchewan. a 30.1 
inch ridge forms monday over the lower great lakes as the low 
retreats to alberta. monday night, a 29.7 inch trough will be over 
northern ontario, extending 29.9 inch troughing over the lake. by 
tuesday night, a 30.2 inch high over the western shores of hudson 
bay will extend weak ridging over lake superior with 29.4 inch 
troughing forming in the lee of the northern us rockies. pressure 
rises over the lake as the high shifts southeast over northern 
ontario while low pressure over the west weakens on wednesday and 
thursday.



lsz162-242000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt sun may 24 2026 /300 am cdt sun may 24 2026/

...dense fog advisory in effect until 11 am edt /10 am cdt/ this
morning...

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...southwest winds 5 to 15 knots backing south late. waves
calm to 2 feet. 
.tonight...south winds 5 to 15 knots backing north after
midnight, then backing southwest late. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots backing east in the
afternoon. waves calm to 2 feet. 
.monday night...north winds 5 to 15 knots backing west after
midnight. a slight chance of showers and thunderstorms through
midnight. waves calm to 2 feet. 
.tuesday...southwest winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.tuesday night...northeast winds 5 to 15 knots increasing to
10 to 20 knots after midnight. waves calm to 2 feet. 
.wednesday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.thursday...northeast winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 240801
glfls 
expires:202605242000;;555896

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun may 24 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... 

today, lake superior will be between a 30.6 inch high off the canada 
coast and broad 29.6 inch low pressure over saskatchewan. a 30.1 
inch ridge forms monday over the lower great lakes as the low 
retreats to alberta. monday night, a 29.7 inch trough will be over 
northern ontario, extending 29.9 inch troughing over the lake. by 
tuesday night, a 30.2 inch high over the western shores of hudson 
bay will extend weak ridging over lake superior with 29.4 inch 
troughing forming in the lee of the northern us rockies. pressure 
rises over the lake as the high shifts southeast over northern 
ontario while low pressure over the west weakens on wednesday and 
thursday.



lsz266-242000-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
400 am edt sun may 24 2026

.early this morning...southeast winds 10 to 20 knots. a chance of
rain showers. waves 3 to 5 feet occasionally to 7 feet subsiding
to 2 to 4 feet. 
.today...south winds 10 to 20 knots becoming west 5 to 15 knots
in the afternoon. a slight chance of rain showers through early
afternoon. waves subsiding to calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots becoming south 10 to
20 knots after midnight, then diminishing to 5 to 15 knots late.
waves building to 1 to 3 feet. 
.monday...south winds 5 to 15 knots becoming southeast 10 to
20 knots late. a slight chance of showers and thunderstorms by
mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...south winds 10 to 20 knots veering southwest
after midnight. waves building to 2 to 4 feet, then subsiding to
1 to 3 feet. 
.tuesday...west winds 5 to 15 knots veering northwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.tuesday night...north winds 5 to 15 knots. waves calm to 2 feet.
.wednesday...north winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots. waves calm to 2 feet. 

$$