fzus63 kdtx 290752
glflh 
expires:202603291600;;474469

open lake forecast for lake huron
national weather service detroit/pontiac mi
352 am edt sun mar 29 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.70 inches, drifts across the ohio
valley today. westerly winds then become southwesterly ahead of
the next cold front that sweeps across the great lakes tuesday
night.


lhz361-291600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
352 am edt sun mar 29 2026

.today...south winds 10 to 15 knots becoming southwest 5 to
10 knots in the late morning and early afternoon...then 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 early in the morning. waves 1 to 3 feet. 
.monday...west winds 5 to 10 knots veering to the northwest early
in the afternoon. waves 2 feet or less. 
.monday night...northeast winds 5 to 10 knots becoming east 15 to
20 knots. rain likely. waves 1 to 3 feet building to 3 to 5 feet
after midnight. 
.tuesday...northeast winds 15 to 20 knots backing to the north
late in the evening. rain likely. a chance of rain late in the
afternoon. waves 4 to 6 feet. waves occasionally around 8 feet. 
.wednesday...northwest winds 20 to 25 knots decreasing to 15 to
20 knots in the late morning and early afternoon...then
decreasing to 10 to 15 knots early in the evening becoming north
15 to 20 knots by midnight. waves 5 to 7 feet subsiding to 3 to
5 feet . waves occasionally around 10 feet. 
.thursday...east winds 20 to 25 knots increasing to 30 knots by
midnight. a chance of snow and rain by midnight. waves 8 to
12 feet. waves occasionally around 15 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 290752
glflh 
expires:202603291600;;474470

open lake forecast for lake huron
national weather service detroit/pontiac mi
352 am edt sun mar 29 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.70 inches, drifts across the ohio
valley today. westerly winds then become southwesterly ahead of
the next cold front that sweeps across the great lakes tuesday
night.


lhz362-363-291600-
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-
352 am edt sun mar 29 2026

.today...southwest winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and afternoon. waves 3 to 5 feet. 
.tonight...south winds 10 to 15 knots. waves 2 to 4 feet. 
.monday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then veering
to the southwest 5 to 10 knots early in the afternoon. waves 2 to
4 feet subsiding to 1 to 3 feet in the late morning and
afternoon. 
.monday night...east winds 5 to 10 knots increasing to 15 to
20 knots. a chance of rain in the evening...then rain after
midnight. waves 1 to 3 feet building to 4 to 6 feet after
midnight. waves occasionally around 8 feet. 
.tuesday...northeast winds 15 to 20 knots becoming north 20 to
25 knots late in the evening. rain likely...then a chance of
thunderstorms late in the afternoon. a chance of rain late in the
afternoon. waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...northwest winds 20 to 25 knots becoming north 15 to
20 knots. a chance of rain early in the morning. waves 6 to
9 feet. waves occasionally around 12 feet. 
.thursday...northeast winds 20 to 25 knots with gusts to around
30 knots increasing to 30 knots by midnight. a chance of rain. a
chance of snow . waves 8 to 12 feet. waves occasionally around
15 feet. 


$$

fzus63 kdtx 290752
glflh 
expires:202603291600;;474471

open lake forecast for lake huron
national weather service detroit/pontiac mi
352 am edt sun mar 29 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.70 inches, drifts across the ohio
valley today. westerly winds then become southwesterly ahead of
the next cold front that sweeps across the great lakes tuesday
night.


lhz462>464-291600-
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-
352 am edt sun mar 29 2026

.today...southwest winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet late in the afternoon. 
.tonight...south winds 10 to 15 knots. waves 2 to 4 feet. 
.monday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and afternoon. waves 1 to 3 feet. 
.monday night...east winds 5 to 10 knots increasing to 10 to
15 knots by midnight...then veering to the south after midnight.
a chance of rain in the evening...then a chance of rain and
thunderstorms after midnight. waves 1 to 3 feet building to 2 to
4 feet after midnight. 
.tuesday...southeast winds 10 to 15 knots increasing to 15 to
20 knots late in the morning...then veering to the south late in
the afternoon veering to the west late in the evening. rain and a
chance of thunderstorms. waves 3 to 5 feet building to 5 to
7 feet late in the evening. waves occasionally around 10 feet. 
.wednesday...northwest winds 20 to 25 knots becoming north 15 to
20 knots until early evening...then veering to the northeast by
midnight. a chance of rain early in the morning. waves 6 to
9 feet. waves occasionally around 12 feet. 
.thursday...northeast winds 20 to 25 knots decreasing to 15 to
20 knots until early evening...then becoming east 20 to 25 knots
by midnight. a chance of snow. a chance of rain until early
evening...then rain likely by midnight. waves 6 to 9 feet. waves
occasionally around 12 feet. 


$$

fzus63 kmkx 290752
glflm 
expires:202603291515;;474474

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
252 am cdt sun mar 29 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...

breezy southwest winds will continue through today as a cold 
front begins to approach the waters from the north. the front will
gradually advance south across lake michigan late tonight through
tuesday. this will result in generally east- northeast winds 
across the northern half of the lake with southerly winds further 
south. periods of showers and thunderstorms will accompany the 
slow-moving front, with a few stronger storms possible monday 
night and once again on tuesday. large hail would be the primary 
threat in any stronger storms.

winds will trend northerly behind the departing cold front tuesday 
evening through wednesday. will be monitoring trends for a few gusts 
approaching gale force tuesday evening/night, with the current 
expectation being for any such gusts to be isolated. 30.8 inch 
high pressure will shift from ontario to quebec through the late 
week time period as 29.8 inch low pressure builds into the ohio 
river valley, allowing winds to trend east-northeasterly. 
additional rain and snow will accompany the approaching/passing 
area of low pressure thursday into next weekend.


lmz261-362-364-366-563-565-567-868-291515-
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-
252 am cdt sun mar 29 2026

sheboygan wi to pentwater mi north...

.today...southwest winds 15 to 25 kt becoming south. waves 4 to
6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.monday...southwest winds 10 to 20 kt backing to east 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.monday night...east winds 10 to 20 kt. rain likely in the
evening, then rain likely with a chance of thunderstorms
overnight. waves 2 to 4 ft building to 3 to 5 ft. 
.tuesday...east winds 10 to 20 kt backing to north. rain likely
with a chance of thunderstorms. waves 4 to 6 ft occasionally to
8 ft building to 4 to 7 ft occasionally to 9 ft. 
.tuesday night...northwest winds to 30 kt. chance of rain. waves
5 to 8 ft occasionally to 10 ft. 
.wednesday...north winds to 30 kt diminishing to 15 to 25 kt.
waves 5 to 8 ft occasionally to 10 ft. 
.thursday...east winds to 30 kt becoming northeast 15 to 25 kt.
chance of snow. waves 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 290752
glflm 
expires:202603291515;;474475

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
252 am cdt sun mar 29 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...

breezy southwest winds will continue through today as a cold 
front begins to approach the waters from the north. the front will
gradually advance south across lake michigan late tonight through
tuesday. this will result in generally east- northeast winds 
across the northern half of the lake with southerly winds further 
south. periods of showers and thunderstorms will accompany the 
slow-moving front, with a few stronger storms possible monday 
night and once again on tuesday. large hail would be the primary 
threat in any stronger storms.

winds will trend northerly behind the departing cold front tuesday 
evening through wednesday. will be monitoring trends for a few gusts 
approaching gale force tuesday evening/night, with the current 
expectation being for any such gusts to be isolated. 30.8 inch 
high pressure will shift from ontario to quebec through the late 
week time period as 29.8 inch low pressure builds into the ohio 
river valley, allowing winds to trend east-northeasterly. 
additional rain and snow will accompany the approaching/passing 
area of low pressure thursday into next weekend.


lmz080-669-671-673-675-777-779-870-872-874-876-878-291515-
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-
252 am cdt sun mar 29 2026

sheboygan wi to pentwater mi south...

.today...southwest winds 15 to 25 kt becoming south. waves 4 to
6 ft occasionally to 8 ft. 
.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. waves 3 to 5 ft. 
.monday...southwest winds 10 to 20 kt becoming south. waves 2 to
4 ft. 
.monday night...south winds 10 to 20 kt becoming southwest 15 to
25 kt. chance of rain and thunderstorms in the evening, then rain
likely with a chance of thunderstorms overnight. waves 2 to 4 ft
building to 4 to 6 ft occasionally to 8 ft. 
.tuesday...south winds to 30 kt becoming southwest. rain likely
in the morning, then rain with a chance of thunderstorms in the
afternoon. waves 4 to 7 ft occasionally to 9 ft. 
.tuesday night...northwest winds to 30 kt becoming north. chance
of rain and thunderstorms. waves 6 to 9 ft occasionally to 12 ft.
.wednesday...north winds to 30 kt diminishing to 15 to 25 kt.
waves 6 to 9 ft occasionally to 12 ft. 
.thursday...east winds to 30 kt becoming northeast. chance of
rain and snow. waves 8 to 11 ft occasionally to 14 ft.  

$$

fzus63 kmqt 290801
glfls 
expires:202603292000;;474713

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun mar 29 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.7 inch low over the central plains this morning lifts a 30.0 
inch trough over lake superior by this afternoon. this trough 
lingers over the great lakes and slowly deepens with time early this 
week before the low pushes through at 29.6 inches on tuesday. as the 
low tracks along the st. lawrence seaway tuesday night, 30.3 inch 
high pressure builds over the northern plains, gradually building 
pressure over the upper great lakes to 30.5 inches by wednesday. by 
thursday, the high builds to 30.8 inches over northern quebec while 
a 29.3 inch low pressure organizes in the lee of the rockies.



lsz162-292000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt sun mar 29 2026 /300 am cdt sun mar 29 2026/

.early this morning...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.today...northeast winds 5 to 15 knots increasing to 10 to
20 knots late. waves building to 1 to 3 feet. 
.tonight...northeast winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 
.monday...northeast winds 10 to 20 knots becoming east 15 to
25 knots in the afternoon, then becoming northeast 20 to 30 knots
late. a slight chance of rain and snow showers, possibly mixed
with freezing rain by mid afternoon. waves building to 3 to
6 feet occasionally to 8 feet. 
.monday night...northeast winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of snow showers, possibly
mixed with rain. a chance of freezing rain after midnight. waves
building to 4 to 7 feet occasionally to 9 feet. 
.tuesday...northeast winds 15 to 25 knots. a chance of snow
showers. waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to 1 to 3 feet. 
.wednesday...east winds 10 to 20 knots. waves subsiding to calm
to 2 feet, then building to 1 to 3 feet. 
.thursday...east winds 20 to 30 knots. a chance of snow showers.
waves building to 5 to 8 feet occasionally to 10 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 290801
glfls 
expires:202603292000;;474714

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun mar 29 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.7 inch low over the central plains this morning lifts a 30.0 
inch trough over lake superior by this afternoon. this trough 
lingers over the great lakes and slowly deepens with time early this 
week before the low pushes through at 29.6 inches on tuesday. as the 
low tracks along the st. lawrence seaway tuesday night, 30.3 inch 
high pressure builds over the northern plains, gradually building 
pressure over the upper great lakes to 30.5 inches by wednesday. by 
thursday, the high builds to 30.8 inches over northern quebec while 
a 29.3 inch low pressure organizes in the lee of the rockies.



lsz263-292000-
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 mar 29 2026

.early this morning...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.today...east winds 5 to 15 knots backing northeast late. waves
building to 1 to 3 feet. 
.tonight...northeast winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 
.monday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then becoming east 15 to 25 knots
late. a slight chance of rain showers, freezing rain and snow
showers by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday night...east winds 20 to 30 knots becoming northeast
15 to 25 knots after midnight. a chance of rain and snow showers,
possibly mixed with freezing rain. waves building to 5 to 8 feet
occasionally to 10 feet. 
.tuesday...northeast winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. a chance of rain showers through early
afternoon. a chance of snow showers. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.tuesday night...north winds 10 to 20 knots. waves subsiding to
2 to 4 feet. 
.wednesday...northeast winds 5 to 15 knots becoming east 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.thursday...east winds 15 to 25 knots increasing to 20 to
30 knots. a chance of snow showers. waves building to 4 to 7 feet
occasionally to 9 feet. 

$$

fzus63 kmqt 290801
glfls 
expires:202603292000;;474715

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun mar 29 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.7 inch low over the central plains this morning lifts a 30.0 
inch trough over lake superior by this afternoon. this trough 
lingers over the great lakes and slowly deepens with time early this 
week before the low pushes through at 29.6 inches on tuesday. as the 
low tracks along the st. lawrence seaway tuesday night, 30.3 inch 
high pressure builds over the northern plains, gradually building 
pressure over the upper great lakes to 30.5 inches by wednesday. by 
thursday, the high builds to 30.8 inches over northern quebec while 
a 29.3 inch low pressure organizes in the lee of the rockies.



lsz264-292000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt sun mar 29 2026

.early this morning...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.today...east winds 5 to 15 knots. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots backing north late. waves
calm to 2 feet. 
.monday...northeast winds 5 to 15 knots becoming east 10 to
20 knots late. waves building to 2 to 4 feet. 
.monday night...east winds 15 to 25 knots. a chance of snow
showers, possibly mixed with rain and freezing rain. waves
building to 4 to 7 feet occasionally to 9 feet. 
.tuesday...northeast winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. freezing spray through early
afternoon. a chance of snow showers. waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tuesday night...north winds 15 to 25 knots. freezing spray.
waves subsiding to 2 to 4 feet. 
.wednesday...north winds 10 to 20 knots becoming east 15 to
25 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.thursday...east winds 15 to 25 knots increasing to 20 to
30 knots. waves building to 4 to 7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 290801
glfls 
expires:202603292000;;474716

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun mar 29 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.7 inch low over the central plains this morning lifts a 30.0 
inch trough over lake superior by this afternoon. this trough 
lingers over the great lakes and slowly deepens with time early this 
week before the low pushes through at 29.6 inches on tuesday. as the 
low tracks along the st. lawrence seaway tuesday night, 30.3 inch 
high pressure builds over the northern plains, gradually building 
pressure over the upper great lakes to 30.5 inches by wednesday. by 
thursday, the high builds to 30.8 inches over northern quebec while 
a 29.3 inch low pressure organizes in the lee of the rockies.



lsz265-292000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt sun mar 29 2026

.early this morning...east winds 5 to 15 knots. waves calm to
2 feet. 
.today...east winds 5 to 15 knots increasing to 10 to 20 knots
late. waves calm to 2 feet. 
.tonight...east winds 10 to 20 knots backing north after
midnight. waves calm to 2 feet. 
.monday...northeast winds 10 to 20 knots veering east late. waves
building to 1 to 3 feet. 
.monday night...east winds 15 to 25 knots. a chance of rain
showers, possibly mixed with snow. waves building to 4 to 7 feet
occasionally to 9 feet. 
.tuesday...east winds 20 to 30 knots becoming northeast 15 to
25 knots by mid afternoon. a chance of rain showers through early
afternoon. a chance of snow showers. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.tuesday night...north winds 20 to 30 knots. freezing spray after
midnight. waves 3 to 6 feet occasionally to 8 feet. 
.wednesday...north winds 10 to 20 knots becoming east 15 to
25 knots. freezing spray. waves subsiding to calm to 2 feet, then
building to 2 to 4 feet. 
.thursday...east winds 20 to 30 knots. freezing spray. a chance
of snow showers. waves building to 4 to 8 feet occasionally to
10 feet. 

$$

fzus63 kmqt 290801
glfls 
expires:202603292000;;474717

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun mar 29 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.7 inch low over the central plains this morning lifts a 30.0 
inch trough over lake superior by this afternoon. this trough 
lingers over the great lakes and slowly deepens with time early this 
week before the low pushes through at 29.6 inches on tuesday. as the 
low tracks along the st. lawrence seaway tuesday night, 30.3 inch 
high pressure builds over the northern plains, gradually building 
pressure over the upper great lakes to 30.5 inches by wednesday. by 
thursday, the high builds to 30.8 inches over northern quebec while 
a 29.3 inch low pressure organizes in the lee of the rockies.



lsz266-292000-
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 mar 29 2026

.early this morning...south winds 10 to 20 knots. waves 1 to
3 feet subsiding to calm to 2 feet. 
.today...east winds 5 to 15 knots becoming southeast 10 to
20 knots late. waves calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots backing north after
midnight. waves calm to 2 feet. 
.monday...northeast winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.monday night...east winds 15 to 25 knots. a chance of rain
showers, possibly mixed with snow. waves building to 4 to 7 feet
occasionally to 9 feet. 
.tuesday...east winds 20 to 30 knots backing northeast by mid
afternoon. rain showers likely through early afternoon. a chance
of snow showers. a chance of rain showers by mid afternoon. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.tuesday night...north winds 20 to 30 knots. freezing spray after
midnight. waves 3 to 6 feet occasionally to 8 feet. 
.wednesday...north winds 15 to 25 knots veering east. freezing
spray. waves subsiding to calm to 2 feet, then building to 2 to
4 feet. 
.thursday...east winds 20 to 30 knots. waves building to 4 to
8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 290801
glfls 
expires:202603292000;;474718

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun mar 29 2026

for waters beyond 5 nautical miles of shore on lake superior.

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

.synopsis...

a 29.7 inch low over the central plains this morning lifts a 30.0 
inch trough over lake superior by this afternoon. this trough 
lingers over the great lakes and slowly deepens with time early this 
week before the low pushes through at 29.6 inches on tuesday. as the 
low tracks along the st. lawrence seaway tuesday night, 30.3 inch 
high pressure builds over the northern plains, gradually building 
pressure over the upper great lakes to 30.5 inches by wednesday. by 
thursday, the high builds to 30.8 inches over northern quebec while 
a 29.3 inch low pressure organizes in the lee of the rockies.



lsz267-292000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt sun mar 29 2026

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southeast winds 5 to 15 knots backing east in the
afternoon, then becoming southeast 10 to 20 knots late. waves
calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots veering south after
midnight, then backing north late. waves calm to 2 feet. 
.monday...north winds 10 to 20 knots becoming northeast 5 to
15 knots in the afternoon, then increasing to 10 to 20 knots
late. waves calm to 2 feet. 
.monday night...east winds 10 to 20 knots increasing to 15 to
25 knots after midnight. rain showers likely through midnight. a
chance of snow showers. a chance of rain showers after midnight.
waves building to 2 to 4 feet. 
.tuesday...east winds 15 to 25 knots backing northeast by mid
afternoon. rain and snow showers likely through early afternoon,
then a chance of rain showers, possibly mixed with freezing rain
and snow showers by mid afternoon. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.tuesday night...north winds 20 to 30 knots. freezing spray after
midnight. waves 2 to 4 feet. 
.wednesday...north winds 15 to 25 knots veering east. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.thursday...east winds 15 to 25 knots increasing to 20 to
30 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet. 

$$