fzus63 kdtx 251334
glflh 
expires:202603252145;;271268

open lake forecast for lake huron
national weather service detroit/pontiac mi
934 am edt wed mar 25 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...weak low pressure, 29.70 inches, crosses the northern
great lakes mid-week resulting in a warm front lifting through
the central lakes. system eventually drags a cold front through
the region late thursday supporting widespread showers and a few
potentially strong thunderstorms over the southern great lakes.
northerly winds strengthen going into friday as cold air returns.
there is a low chance for a few hour period thursday night for
gusts to reach gales.


lhz361-252145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
934 am edt wed mar 25 2026

.rest of today...southeast winds 10 to 15 knots. waves 3 to
5 feet. 
.tonight...southeast winds 10 to 15 knots decreasing to 5 to
10 knots late in the evening...then veering to the south after
midnight veering to the southwest early in the morning. waves
3 to 5 feet. 
.thursday...southwest winds 5 to 10 knots becoming west 10 to
15 knots in the late morning and afternoon. a chance of showers
in the morning...then a chance of rain and snow showers in the
afternoon. waves 1 to 3 feet building to 2 to 4 feet early in the
afternoon. 
.thursday night...northwest winds 15 to 20 knots veering to the
north after midnight. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.friday...north winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then becoming west 10 to 15 knots late in
the afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet late in
the morning...then building to 2 to 4 feet late in the evening. 
.saturday...west winds 10 to 15 knots increasing to 15 to
20 knots until early evening...then decreasing to 10 to 15 knots
by midnight. waves 3 to 5 feet. 
.sunday...south winds 10 to 15 knots. waves 1 to 3 feet building
to 3 to 5 feet . 

wave heights are for ice free areas.

$$

fzus63 kdtx 251334
glflh 
expires:202603252145;;271269

open lake forecast for lake huron
national weather service detroit/pontiac mi
934 am edt wed mar 25 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...weak low pressure, 29.70 inches, crosses the northern
great lakes mid-week resulting in a warm front lifting through
the central lakes. system eventually drags a cold front through
the region late thursday supporting widespread showers and a few
potentially strong thunderstorms over the southern great lakes.
northerly winds strengthen going into friday as cold air returns.
there is a low chance for a few hour period thursday night for
gusts to reach gales.


lhz362-363-252145-
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-
934 am edt wed mar 25 2026

.rest of today...southeast winds 10 to 15 knots increasing to
15 to 20 knots late in the afternoon. waves 3 to 5 feet. 
.tonight...southeast winds 15 to 20 knots becoming south 10 to
15 knots by midnight...then veering to the southwest early in the
morning. waves 3 to 5 feet. 
.thursday...southwest winds 10 to 15 knots veering to the west
early in the afternoon. a chance of showers. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late morning and early
afternoon...then building to 2 to 4 feet early in the afternoon. 
.thursday night...northwest winds 20 to 25 knots with gusts to
around 30 knots veering to the north after midnight. waves 6 to
9 feet. waves occasionally around 12 feet. 
.friday...north winds 15 to 20 knots decreasing to 10 to 15 knots
late in the morning...then backing to the northwest late in the
afternoon increasing to 15 to 20 knots late in the evening. waves
6 to 9 feet subsiding to 3 to 5 feet late in the afternoon. waves
occasionally around 12 feet. 
.saturday...west winds 15 to 20 knots. waves 4 to 6 feet. 
.sunday...southwest winds 10 to 15 knots becoming south 15 to
20 knots. waves 4 to 6 feet. waves occasionally around 8 feet. 


$$

fzus63 kdtx 251334
glflh 
expires:202603252145;;271270

open lake forecast for lake huron
national weather service detroit/pontiac mi
934 am edt wed mar 25 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...weak low pressure, 29.70 inches, crosses the northern
great lakes mid-week resulting in a warm front lifting through
the central lakes. system eventually drags a cold front through
the region late thursday supporting widespread showers and a few
potentially strong thunderstorms over the southern great lakes.
northerly winds strengthen going into friday as cold air returns.
there is a low chance for a few hour period thursday night for
gusts to reach gales.


lhz462>464-252145-
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-
934 am edt wed mar 25 2026

.rest of today...southeast winds 10 to 15 knots. waves 1 to
3 feet building to 2 to 4 feet late in the afternoon. 
.tonight...south winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 2 to 4 feet. 
.thursday...southwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then
increasing to 10 to 15 knots early in the afternoon. a chance of
showers in the morning...then showers likely in the afternoon.
waves 1 to 3 feet. 
.thursday night...north winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late evening and
overnight. showers likely in the evening. waves 4 to 6 feet
building to 8 to 12 feet in the late evening and overnight. waves
occasionally around 15 feet. 
.friday...north winds 20 to 25 knots decreasing to 15 to 20 knots
late in the morning...then decreasing to 5 to 10 knots late in
the afternoon becoming northwest 10 to 15 knots late in the
evening. waves 6 to 9 feet subsiding to 3 to 5 feet late in the
afternoon. waves occasionally around 12 feet. 
.saturday...west winds 10 to 15 knots. waves 3 to 5 feet. 
.sunday...west winds 10 to 15 knots backing to the south until
early evening...then increasing to 15 to 20 knots by midnight.
waves 3 to 5 feet subsiding to 1 to 3 feet until early evening...
then building to 3 to 5 feet by midnight. 


$$

fzus63 kmkx 251351
glflm 
expires:202603252115;;271734

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 am cdt wed mar 25 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...

southerly winds expected through this morning as pressure gradient
increases between high pressure of 30.5 inches over the mid-
atlantic and low pressure of 29.6 inches moving into minnesota. a 
cold front will move southward across the lake thursday morning 
into the afternoon, with increasing northerly winds expected 
behind the front. a gale watch is in effect for the southern two-
thirds of the open waters thursday afternoon through thursday
night behind this front.

breezy west to northwest winds are likely to develop friday 
evening into friday night as high pressure of 30.7 inches 
approaches from the northwest. winds may ease by saturday evening as
the high moves overhead, with breezy southerly winds then 
developing by sunday behind the departing high and ahead of an 
approaching low.


lmz261-362-364-563-252115-
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 rock island passage to sturgeon bay wi-
851 am cdt wed mar 25 2026

sturgeon bay wi to point betsie mi north...

.rest of today...southeast winds 10 to 20 kt becoming south 15 to
25 kt late this morning, then increasing to 30 kt early this
afternoon becoming south to 30 kt late. slight chance of snow
through mid morning, then slight chance of rain this afternoon.
waves 1 to 3 ft building to 4 to 6 ft occasionally to 8 ft. 
.tonight...southwest winds 15 to 25 kt diminishing to 10 to 20 kt
late in the evening, then diminishing to 10 to 15 kt after
midnight diminishing to 5 to 10 kt late. waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft. 
.thursday...west winds 5 to 10 kt becoming northwest 10 to 15 kt
late in the morning, then becoming north 10 to 20 kt early in the
afternoon increasing to 30 kt late. chance of rain. waves 1 to
3 ft building to 4 to 6 ft occasionally to 8 ft. 
.thursday night...north winds to 30 kt. waves 6 to 9 ft
occasionally to 12 ft. 
.friday...north winds 10 to 20 kt backing to northwest 10 to
15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 1 to
3 ft. 
.friday night...northwest winds 10 to 15 kt becoming west 10 to
20 kt. waves 1 to 3 ft. 
.saturday...west winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft. 
.sunday...south winds 10 to 20 kt. waves 4 to 6 ft occasionally
to 8 ft.  

$$

fzus63 kmkx 251351
glflm 
expires:202603252115;;271735

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 am cdt wed mar 25 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...

southerly winds expected through this morning as pressure gradient
increases between high pressure of 30.5 inches over the mid-
atlantic and low pressure of 29.6 inches moving into minnesota. a 
cold front will move southward across the lake thursday morning 
into the afternoon, with increasing northerly winds expected 
behind the front. a gale watch is in effect for the southern two-
thirds of the open waters thursday afternoon through thursday
night behind this front.

breezy west to northwest winds are likely to develop friday 
evening into friday night as high pressure of 30.7 inches 
approaches from the northwest. winds may ease by saturday evening as
the high moves overhead, with breezy southerly winds then 
developing by sunday behind the departing high and ahead of an 
approaching low.


lmz366-565-567-868-252115-
lake michigan from point betsie to manistee mi 5 nm offshore to
mid lake-
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-
851 am cdt wed mar 25 2026

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

...gale watch in effect from thursday afternoon through late
thursday night...

.rest of today...south winds 10 to 20 kt increasing to 30 kt.
waves 1 to 3 ft building to 4 to 6 ft occasionally to 8 ft. 
.tonight...south winds to 30 kt becoming southwest 5 to 10 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.thursday...southwest winds 5 to 10 kt veering to northwest 10 to
20 kt late in the morning, then becoming north 15 to 25 kt early
in the afternoon increasing to 30 kt late. chance of rain. waves
2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.thursday night...north gales to 35 kt. chance of rain in the
evening. waves 8 to 12 ft occasionally to 16 ft. 
.friday...north winds 15 to 25 kt becoming northwest 10 to 20 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 3 to 5 ft. 
.friday night...west winds 10 to 15 kt becoming northwest. waves
1 to 3 ft. 
.saturday...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft. 
.sunday...south winds 10 to 20 kt. waves 4 to 7 ft occasionally
to 9 ft.  

$$

fzus63 kmkx 251351
glflm 
expires:202603252115;;271736

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 am cdt wed mar 25 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...

southerly winds expected through this morning as pressure gradient
increases between high pressure of 30.5 inches over the mid-
atlantic and low pressure of 29.6 inches moving into minnesota. a 
cold front will move southward across the lake thursday morning 
into the afternoon, with increasing northerly winds expected 
behind the front. a gale watch is in effect for the southern two-
thirds of the open waters thursday afternoon through thursday
night behind this front.

breezy west to northwest winds are likely to develop friday 
evening into friday night as high pressure of 30.7 inches 
approaches from the northwest. winds may ease by saturday evening as
the high moves overhead, with breezy southerly winds then 
developing by sunday behind the departing high and ahead of an 
approaching low.


lmz080-669-671-673-675-777-779-870-872-874-876-878-252115-
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-
851 am cdt wed mar 25 2026

sheboygan wi to pentwater mi south...

...gale watch in effect from thursday afternoon through late
thursday night...

.rest of today...south winds 10 to 20 kt increasing to 30 kt.
waves 2 to 4 ft building to 4 to 6 ft occasionally to 8 ft. 
.tonight...south winds 15 to 25 kt becoming southwest 10 to
15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.thursday...southwest winds 10 to 15 kt increasing to 10 to 20 kt
late in the morning, then veering to northwest 15 to 25 kt early
in the afternoon becoming north to 30 kt late. chance of rain in
the afternoon. waves 1 to 3 ft building to 4 to 7 ft occasionally
to 9 ft. 
.thursday night...north gales to 35 kt increasing to gales to
40 kt. chance of rain in the evening. waves 10 to 14 ft
occasionally to 18 ft. 
.friday...north winds to 30 kt diminishing to 10 to 20 kt in the
afternoon. waves 8 to 11 ft occasionally to 14 ft subsiding to
4 to 7 ft occasionally to 9 ft. 
.friday night...northwest winds 10 to 15 kt. waves 3 to 5 ft
subsiding to 1 to 3 ft. 
.saturday...west winds 10 to 20 kt becoming southwest. waves 2 to
4 ft. 
.sunday...south winds 10 to 20 kt. waves 4 to 6 ft occasionally
to 8 ft.  

$$

fzus63 kmqt 251401
glfls 
expires:202603252000;;271927

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed mar 25 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 29.8 inch trough will extend over lake superior today as 30.4 inch 
high pressure departs into quebec and a 29.7 inch clipper low over 
northern minnesota phases with a low moving off the northern 
rockies. troughing of 29.8 inches remains over the great lakes basin 
into thursday before expansive ridging of 30.7 inches builds from 
central canada over much of the northern conus by friday. this will 
maintain 30.4 inch ridging over lake superior through sunday morning 
as the 30.7 inch high shifts to the mid-atlantic.



lsz263-252000-
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 wed mar 25 2026

.rest of today...south winds 5 to 15 knots backing southeast in
the afternoon, then backing north late. a chance of snow and rain
showers. waves 2 to 4 feet subsiding to calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots becoming north 10 to
20 knots late. a slight chance of rain showers, freezing rain and
snow showers after midnight. waves building to 1 to 3 feet. 
.thursday...north winds 10 to 20 knots. a slight chance of rain
and snow showers through early afternoon. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.thursday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to 1 to 3 feet. 
.friday...northwest winds 5 to 15 knots becoming west 15 to
25 knots by mid afternoon. waves subsiding to calm to 2 feet,
then building to 2 to 4 feet. 
.friday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.saturday...west winds 10 to 20 knots becoming south 5 to
15 knots. waves subsiding to 1 to 3 feet. 
.sunday...south winds 5 to 15 knots becoming west 10 to 20 knots.
waves subsiding to calm to 2 feet, then building to 3 to 5 feet
occasionally to 7 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202603252000;;271928

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed mar 25 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 29.8 inch trough will extend over lake superior today as 30.4 inch 
high pressure departs into quebec and a 29.7 inch clipper low over 
northern minnesota phases with a low moving off the northern 
rockies. troughing of 29.8 inches remains over the great lakes basin 
into thursday before expansive ridging of 30.7 inches builds from 
central canada over much of the northern conus by friday. this will 
maintain 30.4 inch ridging over lake superior through sunday morning 
as the 30.7 inch high shifts to the mid-atlantic.



lsz264-252000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt wed mar 25 2026

.rest of today...south winds 10 to 20 knots backing southeast in
the afternoon, then diminishing to 5 to 15 knots late. a chance
of rain and snow showers. waves 3 to 5 feet occasionally to
7 feet subsiding to 2 to 4 feet. 
.tonight...north winds 5 to 15 knots veering northeast after
midnight, then becoming north 10 to 20 knots late. a slight
chance of freezing rain and snow showers. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.thursday...north winds 15 to 25 knots. freezing spray by mid
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.thursday night...north winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. freezing spray through midnight. waves
subsiding to 1 to 3 feet. 
.friday...northwest winds 10 to 20 knots becoming west 15 to
25 knots by mid afternoon. waves subsiding to calm to 2 feet,
then building to 2 to 4 feet. 
.friday night...northwest winds 15 to 25 knots. freezing spray.
waves building to 3 to 6 feet occasionally to 8 feet. 
.saturday...west winds 15 to 25 knots diminishing to 5 to
15 knots. freezing spray. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 
.sunday...south winds 5 to 15 knots becoming northwest 15 to
25 knots. waves subsiding to 1 to 3 feet, then building to 3 to
6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202603252000;;271929

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed mar 25 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 29.8 inch trough will extend over lake superior today as 30.4 inch 
high pressure departs into quebec and a 29.7 inch clipper low over 
northern minnesota phases with a low moving off the northern 
rockies. troughing of 29.8 inches remains over the great lakes basin 
into thursday before expansive ridging of 30.7 inches builds from 
central canada over much of the northern conus by friday. this will 
maintain 30.4 inch ridging over lake superior through sunday morning 
as the 30.7 inch high shifts to the mid-atlantic.



lsz265-252000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt wed mar 25 2026

.rest of today...south winds 10 to 20 knots backing southeast in
the afternoon, then diminishing to 5 to 15 knots late. a chance
of snow showers by late morning. a slight chance of rain showers.
waves 2 to 4 feet subsiding to calm to 2 feet. 
.tonight...west winds 10 to 20 knots veering northwest late.
waves calm to 2 feet. 
.thursday...northwest winds 15 to 25 knots becoming north 20 to
30 knots in the afternoon. a slight chance of rain and snow
showers through early afternoon. freezing spray by mid afternoon.
waves building to 5 to 8 feet occasionally to 10 feet. 
.thursday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.friday...northwest winds 15 to 25 knots becoming west 20 to
30 knots by mid afternoon. waves subsiding to 2 to 4 feet. 
.friday night...west winds 20 to 30 knots. waves 2 to 4 feet. 
.saturday...west winds 15 to 25 knots backing southwest. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.sunday...south winds 15 to 25 knots veering west. waves building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
4 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202603252000;;271930

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed mar 25 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 29.8 inch trough will extend over lake superior today as 30.4 inch 
high pressure departs into quebec and a 29.7 inch clipper low over 
northern minnesota phases with a low moving off the northern 
rockies. troughing of 29.8 inches remains over the great lakes basin 
into thursday before expansive ridging of 30.7 inches builds from 
central canada over much of the northern conus by friday. this will 
maintain 30.4 inch ridging over lake superior through sunday morning 
as the 30.7 inch high shifts to the mid-atlantic.



lsz266-252000-
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 wed mar 25 2026

.rest of today...south winds 15 to 25 knots diminishing to 10 to
20 knots late. a chance of rain and snow showers. waves 3 to
6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.tonight...south winds 10 to 20 knots veering west after
midnight, then veering northwest late. a slight chance of rain
showers. a slight chance of snow showers after midnight. waves
subsiding to 1 to 3 feet. 
.thursday...northwest winds 15 to 25 knots becoming north 20 to
30 knots in the afternoon, then increasing to 30 knots with a few
gale force gusts to 35 knots possible late. a slight chance of
rain and snow showers through early afternoon. freezing spray by
mid afternoon. waves building to 6 to 9 feet occasionally to
11 feet. 
.thursday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.friday...northwest winds 10 to 20 knots increasing to 20 to
30 knots by mid afternoon. waves subsiding to 2 to 4 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.friday night...northwest winds 20 to 30 knots. freezing spray.
waves building to 5 to 8 feet occasionally to 10 feet. 
.saturday...northwest winds 20 to 30 knots becoming west 15 to
25 knots. freezing spray. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.sunday...south winds 15 to 25 knots increasing to 20 to
30 knots. waves subsiding to 2 to 4 feet, then building to 5 to
8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202603252000;;271931

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed mar 25 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 29.8 inch trough will extend over lake superior today as 30.4 inch 
high pressure departs into quebec and a 29.7 inch clipper low over 
northern minnesota phases with a low moving off the northern 
rockies. troughing of 29.8 inches remains over the great lakes basin 
into thursday before expansive ridging of 30.7 inches builds from 
central canada over much of the northern conus by friday. this will 
maintain 30.4 inch ridging over lake superior through sunday morning 
as the 30.7 inch high shifts to the mid-atlantic.



lsz267-252000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt wed mar 25 2026

.rest of today...southeast winds 15 to 25 knots diminishing to
10 to 20 knots late. a chance of snow showers, possibly mixed
with rain. waves 3 to 5 feet occasionally to 7 feet subsiding to
1 to 3 feet. 
.tonight...south winds 10 to 20 knots veering west late. a slight
chance of rain showers. a slight chance of snow showers after
midnight. waves subsiding to calm to 2 feet. 
.thursday...west winds 10 to 20 knots becoming northwest 15 to
25 knots in the afternoon, then becoming north 20 to 30 knots
late. a slight chance of rain and snow showers through early
afternoon. freezing spray by mid afternoon. waves building to
5 to 8 feet occasionally to 10 feet. 
.thursday night...north winds 20 to 30 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves subsiding to 2 to
4 feet. 
.friday...north winds 5 to 15 knots becoming northwest 15 to
25 knots by mid afternoon. waves subsiding to 1 to 3 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.friday night...northwest winds 15 to 25 knots. freezing spray.
waves building to 5 to 8 feet occasionally to 10 feet. 
.saturday...west winds 15 to 25 knots diminishing to 10 to
20 knots. freezing spray. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.sunday...south winds 10 to 20 knots increasing to 20 to
30 knots. waves subsiding to 2 to 4 feet, then building to 5 to
8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202603252000;;271926

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed mar 25 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 29.8 inch trough will extend over lake superior today as 30.4 inch 
high pressure departs into quebec and a 29.7 inch clipper low over 
northern minnesota phases with a low moving off the northern 
rockies. troughing of 29.8 inches remains over the great lakes basin 
into thursday before expansive ridging of 30.7 inches builds from 
central canada over much of the northern conus by friday. this will 
maintain 30.4 inch ridging over lake superior through sunday morning 
as the 30.7 inch high shifts to the mid-atlantic.



lsz162-252000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt wed mar 25 2026 /900 am cdt wed mar 25 2026/

.rest of today...east winds 5 to 15 knots backing northeast late.
a slight chance of rain and snow showers by late morning. waves
calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots becoming north 10 to
20 knots late. a chance of rain showers, possibly mixed with
freezing rain after midnight. waves calm to 2 feet. 
.thursday...northwest winds 10 to 20 knots becoming north 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. a slight chance of rain and snow showers through early
afternoon. waves building to 1 to 3 feet. 
.thursday night...north winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.friday...northwest winds 10 to 20 knots backing west by mid
afternoon. waves building to 1 to 3 feet. 
.friday night...west winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.saturday...west winds 10 to 20 knots becoming south 5 to
15 knots. waves calm to 2 feet. 
.sunday...east winds 5 to 15 knots backing north. waves calm to
2 feet. 

$$