fzus63 kdtx 120748
glflh 
expires:202603121600;;063405

open lake forecast for lake huron
national weather service detroit/pontiac mi
348 am edt thu mar 12 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...a brief ridge of high pressure, 30.10 inches, will
fill in across the great lakes this afternoon. a strong low
pressure system, 29.10 inches, then enters northern lower
michigan and northern lake huron tomorrow morning. this will
bring widespread gales to the great lakes. a gale warning is in
effect. the low quickly moves out friday night with high pressure
building back in on saturday.


lhz361-362-121600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
348 am edt thu mar 12 2026

...gale warning in effect from late tonight through late friday
night...

.today...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
afternoon. waves 8 to 12 feet subsiding to 5 to 7 feet late in
the afternoon. waves occasionally around 15 feet. 
.tonight...west winds 5 to 10 knots becoming southeast 10 to
15 knots after midnight...then increasing to 20 to 25 knots with
gusts to 35 knot gales early in the morning. snow after midnight.
snow may be heavy at times after midnight. waves 3 to 5 feet
subsiding to 1 to 3 feet after midnight...then building to 6 to
9 feet early in the morning. waves occasionally around 12 feet. 
.friday...southeast at 35 knot gales with gusts to 45 knot gales
decreasing to 20 to 25 knots with gusts to 35 knots in the late 
morning and early afternoon...then becoming northwest 20 to 30 
knots with gusts to around 40 knots in the afternoon. snow in the 
morning...then snow likely in the afternoon. snow may be heavy at 
times in the morning. waves 12 to 16 feet. waves occasionally 
around 20 feet. 
.friday night...west winds to 30 knots veering to the northwest
by midnight...then decreasing to 20 to 25 knots after midnight.
gusts to 35 knot gales. freezing spray after midnight. waves
10 to 14 feet. waves occasionally around 18 feet. 
.saturday...northwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots late in the morning...then
becoming west 5 to 10 knots late in the afternoon backing to the
southeast late in the evening. freezing spray in the morning.
waves 8 to 12 feet subsiding to 1 to 3 feet. waves occasionally
around 15 feet. 
.sunday...east winds 15 to 20 knots becoming northeast at 40 knot
gales with gusts to 45 knot gales. snow, rain. freezing rain by
midnight. freezing spray. waves 3 to 5 feet building to 18 to 23 
feet. waves occasionally around 28 feet. a gale warning may be 
needed. 
.monday...north at 40 knot gales backing to the west. gusts to 45
knot gales. heavy freezing spray. snow and rain early in the 
morning. rain likely in the late morning and early afternoon. a 
chance of snow. waves 20 to 25 feet. waves occasionally around 32 
feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 120748
glflh 
expires:202603121600;;063406

open lake forecast for lake huron
national weather service detroit/pontiac mi
348 am edt thu mar 12 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...a brief ridge of high pressure, 30.10 inches, will
fill in across the great lakes this afternoon. a strong low
pressure system, 29.10 inches, then enters northern lower
michigan and northern lake huron tomorrow morning. this will
bring widespread gales to the great lakes. a gale warning is in
effect. the low quickly moves out friday night with high pressure
building back in on saturday.


lhz363-121600-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
348 am edt thu mar 12 2026

...gale warning in effect from late tonight through late friday
night...

.today...northwest winds 20 to 25 knots with gusts to around
30 knots becoming west 10 to 15 knots. waves 8 to 12 feet
subsiding to 5 to 7 feet late in the afternoon. waves
occasionally around 15 feet. 
.tonight...northwest winds 5 to 10 knots backing to the southwest
late in the evening...then becoming southeast 10 to 15 knots
after midnight increasing to 20 to 25 knots with gusts to 35 knot
gales early in the morning. snow after midnight. snow may be
heavy at times after midnight. waves 3 to 5 feet subsiding to
1 to 3 feet after midnight...then building to 5 to 7 feet early
in the morning. waves occasionally around 10 feet. 
.friday...southeast at 35 knot gales with gusts to 45 knot gales
becoming south to 30 knots with gusts to 40 knot gales in the
late morning and early afternoon...then becoming southwest 20 to
25 knots with gusts to 35 knot gales early in the afternoon. snow
with rain likely in the morning...then rain likely and a chance
of snow in the afternoon. waves 10 to 14 feet. waves occasionally
around 18 feet. 
.friday night...west winds to 30 knots becoming northwest 20 to
25 knots after midnight. gusts to 40 knot gales. freezing spray
after midnight. waves 10 to 14 feet. waves occasionally around
18 feet. 
.saturday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming northwest 10 to
15 knots late in the afternoon veering to the east late in the
evening. freezing spray in the morning. a chance of snow late in
the evening. waves 8 to 12 feet subsiding to 1 to 3 feet. waves
occasionally around 15 feet. 
.sunday...east winds 15 to 20 knots increasing to 35 knot gales
with gusts to 40 knot gales. snow. rain and freezing rain. waves 
3 to 5 feet building to 15 to 20 feet. waves occasionally around 
25 feet. a gale warning may be needed. 
.monday...southeast at 35 knot gales veering to the southwest at
40 knot gales until early evening...then veering to the west at
35 knot gales by midnight. rain...snow and freezing rain early in
the morning...then a chance of rain in the late morning and early
afternoon. a chance of snow. heavy freezing spray. waves 15 to 20
feet. waves occasionally around 25 feet. 


$$

fzus63 kdtx 120748
glflh 
expires:202603121600;;063407

open lake forecast for lake huron
national weather service detroit/pontiac mi
348 am edt thu mar 12 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...a brief ridge of high pressure, 30.10 inches, will
fill in across the great lakes this afternoon. a strong low
pressure system, 29.10 inches, then enters northern lower
michigan and northern lake huron tomorrow morning. this will
bring widespread gales to the great lakes. a gale warning is in
effect. the low quickly moves out friday night with high pressure
building back in on saturday.


lhz462>464-121600-
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-
348 am edt thu mar 12 2026

...gale warning in effect from late tonight through late friday
night...

.today...northwest winds 20 to 25 knots with gusts to around
30 knots becoming west 10 to 15 knots. waves 8 to 12 feet
subsiding to 4 to 6 feet late in the afternoon. waves
occasionally around 15 feet. 
.tonight...north winds 5 to 10 knots veering to the southeast
after midnight...then becoming south 15 to 20 knots with gusts to
35 knot gales early in the morning. a chance of snow after
midnight. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight...then building to 4 to 6 feet early in the morning.
waves occasionally around 8 feet. 
.friday...south at 35 knot gales becoming southwest to 30 knots
in the late morning and afternoon. gusts to 45 knot gales. snow
and rain in the morning...then a chance of rain and snow in the
afternoon. waves 10 to 14 feet subsiding to 8 to 12 feet early in
the afternoon. waves occasionally around 18 feet. 
.friday night...west winds to 30 knots with gusts to 40 knot
gales. waves 10 to 14 feet. waves occasionally around 18 feet. 
.saturday...northwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots late in the morning...then
becoming northwest 10 to 15 knots late in the afternoon veering
to the east late in the evening. a chance of snow late in the
evening. waves 6 to 9 feet subsiding to 1 to 3 feet. waves
occasionally around 12 feet. 
.sunday...east winds 15 to 20 knots increasing to 35 knot gales
with gusts to 40 knot gales. a chance of snow early in the
morning...then freezing rain until early evening. rain and snow.
waves 4 to 6 feet building to 10 to 14 feet. waves occasionally
around 18 feet. a gale warning may be needed. 
.monday...south at 35 knot gales veering to the west. gusts to 40
knot gales. rain...snow and freezing rain early in the 
morning...then a chance of rain until early evening. a chance of 
snow. heavy freezing spray. waves 12 to 16 feet. waves 
occasionally around 20 feet. 


$$

fzus63 kmkx 120809
glflm 
expires:202603121530;;064498

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
309 am cdt thu mar 12 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

high pressure of 30.2 inches approaching from the west will move
across lake michigan midday. thus decreasing northwest winds are
expected this morning then backing southerly into the afternoon as
the high moves away.
 
strong low pressure of 29.0 inches is then expected to move 
through northern wisconsin into northern michigan tonight into 
friday. increasing southerly winds are expected late this
afternoon and evening ahead of the low. southerly gales are
expected over the entire lake by late evening then becoming west
northwesterly for friday. a gale warning is now in effect from
late this evening into friday evening. a few storm force gusts are
also possible.

winds are expected to ease friday night into saturday as high 
pressure of 30.3 inches moves in from the northwest. another 
strong low pressure system is likely to move through the region 
late in the weekend into early next week, with another round of 
gales likely. a colder air mass behind the low may lead to a 
round of heavy freezing spray sunday night into monday as the 
strong winds and higher waves linger.


lmz261-362-364-366-563-565-567-868-121530-
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-
309 am cdt thu mar 12 2026

sheboygan wi to pentwater mi north...

...gale warning in effect from this evening through friday
evening...

.today...northwest winds 10 to 20 kt backing to southwest. waves
3 to 5 ft subsiding to 1 to 3 ft. 
.tonight...south winds to 30 kt increasing to gales to 45 kt.
chance of snow and slight chance of rain in the evening, then
snow and rain overnight. waves 4 to 6 ft occasionally to 8 ft
building to 15 to 20 ft occasionally to 26 ft. 
.friday...southwest gales to 40 kt veering to northwest gales to
45 kt. chance of snow and rain in the morning, then chance of
snow in the afternoon. waves 14 to 18 ft occasionally to 23 ft
subsiding to 12 to 16 ft occasionally to 21 ft. 
.friday night...northwest gales to 40 kt diminishing to 30 kt
overnight. waves 12 to 16 ft occasionally to 21 ft subsiding to
6 to 9 ft occasionally to 12 ft. 
.saturday...northwest winds 10 to 20 kt backing to southwest
10 to 15 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.saturday night...southeast winds 10 to 15 kt becoming east 15 to
25 kt. chance of snow. waves 1 to 3 ft building to 4 to 6 ft
occasionally to 8 ft. 
.sunday...east gales to 35 kt becoming northeast gales to 40 kt.
snow. waves 6 to 9 ft occasionally to 12 ft building to 12 to
16 ft occasionally to 21 ft. 
.monday...north storm force winds to 50 kt becoming northwest
gales to 45 kt. heavy freezing spray. snow likely. waves 18 to
23 ft occasionally to 30 ft subsiding to 14 to 18 ft occasionally
to 23 ft.  

$$

fzus63 kmkx 120809
glflm 
expires:202603121530;;064499

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
309 am cdt thu mar 12 2026

for waters beyond five nautical miles of shore on lake michigan.

waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.synopsis...

high pressure of 30.2 inches approaching from the west will move
across lake michigan midday. thus decreasing northwest winds are
expected this morning then backing southerly into the afternoon as
the high moves away.
 
strong low pressure of 29.0 inches is then expected to move 
through northern wisconsin into northern michigan tonight into 
friday. increasing southerly winds are expected late this
afternoon and evening ahead of the low. southerly gales are
expected over the entire lake by late evening then becoming west
northwesterly for friday. a gale warning is now in effect from
late this evening into friday evening. a few storm force gusts are
also possible.

winds are expected to ease friday night into saturday as high 
pressure of 30.3 inches moves in from the northwest. another 
strong low pressure system is likely to move through the region 
late in the weekend into early next week, with another round of 
gales likely. a colder air mass behind the low may lead to a 
round of heavy freezing spray sunday night into monday as the 
strong winds and higher waves linger.


lmz080-669-671-673-675-777-779-870-872-874-876-878-121530-
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-
309 am cdt thu mar 12 2026

sheboygan wi to pentwater mi south...

...gale warning in effect from this evening through friday
evening...

.today...northwest winds 10 to 20 kt backing to south. waves 4 to
6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.tonight...south winds to 30 kt increasing to gales to 40 kt late
in the evening, then increasing to 45 kt after midnight becoming 
southwest. chance of rain and snow in the evening, then chance of 
rain overnight. waves 3 to 5 ft building to 14 to 18 ft 
occasionally to 23 ft. 
.friday...westerly gales to 45 kt. a few storm force gusts
possible. waves 14 to 18 ft occasionally to 23 ft. 
.friday night...northwest gales to 40 kt diminishing to 15 to
25 kt overnight. waves 12 to 16 ft occasionally to 21 ft
subsiding to 8 to 11 ft occasionally to 14 ft. 
.saturday...north winds 10 to 15 kt veering to east 5 to 10 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.saturday night...east winds 10 to 20 kt increasing to 30 kt.
chance of snow. waves 1 to 3 ft building to 4 to 7 ft
occasionally to 9 ft. 
.sunday...east gales to 35 kt increasing to gales to 40 kt. rain
and snow. waves 8 to 11 ft occasionally to 14 ft building to
12 to 16 ft occasionally to 21 ft. 
.monday...northwest gales to 45 kt. freezing spray. chance of
snow. waves 18 to 23 ft occasionally to 30 ft.  

$$

fzus63 kmqt 120800
glfls 
expires:202603122000;;063649

open lake forecast for lake superior
national weather service marquette mi
400 am edt thu mar 12 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...

transient high pressure of 30.1 inches will cross the lake this 
morning into the afternoon as 29.3 inch low pressure exits eastward 
over the gulf of saint lawrence and another 29.3 inch low moves over 
north dakota. the dakotas low deepens to 29.1 inches in the vicinity 
of northern lake michigan friday morning, then moves over new 
england at 29.5 inches by saturday morning. a 30.2 inch ridge will 
extend over lake superior from central canada on saturday afternoon. 
a 29.3 inch low developing over the central plains saturday night 
will track to near lake huron at 28.9 inches by monday morning. high 
pressure of 30.4 inches will overspread the northern plains on 
monday and move to lake superior by tuesday as the low departs into 
northern quebec.



lsz162-122000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt thu mar 12 2026 /300 am cdt thu mar 12 2026/

...gale warning in effect from this evening through friday
morning...

.early this morning...northwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...northwest winds 5 to 15 knots backing southeast in the
afternoon, then becoming east 15 to 25 knots late. a chance of
snow by mid afternoon. waves building to 2 to 4 feet. 
.tonight...east gales to 40 knots backing northeast late. snow
through midnight, then snow likely after midnight. freezing spray
after midnight. waves building to 11 to 15 feet occasionally to
19 feet. 
.friday...north gales to 35 knots diminishing to 20 to 30 knots
in the afternoon, then becoming northwest 15 to 25 knots late.
freezing spray through early afternoon. a chance of snow showers
through early afternoon. waves subsiding to 4 to 7 feet
occasionally to 9 feet. 
.friday night...northwest winds 5 to 15 knots veering north after
midnight. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots becoming northeast
10 to 20 knots after midnight. waves building to 2 to 4 feet. 
.sunday...northeast gales to 35 knots becoming north gales to
40 knots. heavy freezing spray. a chance of snow showers. waves
building to 11 to 15 feet occasionally to 19 feet. 
.monday...north gales to 40 knots becoming northwest 20 to
30 knots. heavy freezing spray. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 120800
glfls 
expires:202603122000;;063650

open lake forecast for lake superior
national weather service marquette mi
400 am edt thu mar 12 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...

transient high pressure of 30.1 inches will cross the lake this 
morning into the afternoon as 29.3 inch low pressure exits eastward 
over the gulf of saint lawrence and another 29.3 inch low moves over 
north dakota. the dakotas low deepens to 29.1 inches in the vicinity 
of northern lake michigan friday morning, then moves over new 
england at 29.5 inches by saturday morning. a 30.2 inch ridge will 
extend over lake superior from central canada on saturday afternoon. 
a 29.3 inch low developing over the central plains saturday night 
will track to near lake huron at 28.9 inches by monday morning. high 
pressure of 30.4 inches will overspread the northern plains on 
monday and move to lake superior by tuesday as the low departs into 
northern quebec.



lsz263-122000-
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 thu mar 12 2026

...gale warning in effect from this evening through friday
afternoon...

.early this morning...northwest winds 10 to 20 knots. waves 3 to
5 feet occasionally to 7 feet subsiding to 2 to 4 feet. 
.today...northwest winds 5 to 15 knots becoming south less than
10 knots in the afternoon, then becoming southeast 10 to 20 knots
late. a slight chance of snow by mid afternoon. waves subsiding
to calm to 2 feet, then building to 1 to 3 feet. 
.tonight...southeast gales to 35 knots becoming east gales to
40 knots after midnight. freezing spray. snow. waves building to
12 to 17 feet occasionally to 21 feet. 
.friday...northeast gales to 40 knots becoming north gales to
35 knots in the afternoon, then diminishing to 15 to 25 knots
late. freezing spray. a chance of snow showers. waves subsiding
to 5 to 8 feet occasionally to 10 feet. 
.friday night...north winds 15 to 25 knots diminishing to 5 to
15 knots after midnight. freezing spray through midnight. waves
subsiding to calm to 2 feet. 
.saturday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots becoming
northeast 10 to 20 knots after midnight. waves building to 2 to
4 feet. 
.sunday...northeast gales to 40 knots becoming north gales to
45 knots. heavy freezing spray. a chance of snow showers. waves
building to 17 to 22 feet occasionally to 28 feet. 
.monday...north gales to 45 knots. heavy freezing spray. waves
subsiding to 5 to 8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 120800
glfls 
expires:202603122000;;063651

open lake forecast for lake superior
national weather service marquette mi
400 am edt thu mar 12 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...

transient high pressure of 30.1 inches will cross the lake this 
morning into the afternoon as 29.3 inch low pressure exits eastward 
over the gulf of saint lawrence and another 29.3 inch low moves over 
north dakota. the dakotas low deepens to 29.1 inches in the vicinity 
of northern lake michigan friday morning, then moves over new 
england at 29.5 inches by saturday morning. a 30.2 inch ridge will 
extend over lake superior from central canada on saturday afternoon. 
a 29.3 inch low developing over the central plains saturday night 
will track to near lake huron at 28.9 inches by monday morning. high 
pressure of 30.4 inches will overspread the northern plains on 
monday and move to lake superior by tuesday as the low departs into 
northern quebec.



lsz264-122000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt thu mar 12 2026

...gale warning in effect from this evening through late friday
night...

.early this morning...northwest winds 10 to 20 knots. freezing
spray. a slight chance of snow showers. waves 3 to 6 feet
occasionally to 8 feet. 
.today...north winds 10 to 20 knots becoming northwest 5 to
15 knots in the afternoon, then backing southeast late. a slight
chance of snow showers through early afternoon. waves subsiding
to calm to 2 feet. 
.tonight...southeast winds 20 to 30 knots becoming east gales to
45 knots after midnight. freezing spray. a chance of snow through
midnight. snow after midnight. waves building to 15 to 20 feet
occasionally to 25 feet. 
.friday...northeast gales to 45 knots becoming north gales to
35 knots in the afternoon, then diminishing to 20 to 30 knots
late. freezing spray. a chance of snow showers. waves subsiding
to 7 to 10 feet occasionally to 13 feet. 
.friday night...north winds 20 to 30 knots diminishing to 10 to
20 knots after midnight. freezing spray through midnight. waves
subsiding to 1 to 3 feet. 
.saturday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.saturday night...south winds 5 to 15 knots becoming northeast
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.sunday...northeast gales to 45 knots becoming north storm force
winds to 60 knots. heavy freezing spray. a chance of snow
showers. waves building to 20 to 25 feet occasionally to 31 feet.
.monday...north storm force winds to 60 knots diminishing to
gales to 45 knots. heavy freezing spray. waves subsiding to 9 to
12 feet occasionally to 15 feet. 

$$

fzus63 kmqt 120800
glfls 
expires:202603122000;;063652

open lake forecast for lake superior
national weather service marquette mi
400 am edt thu mar 12 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...

transient high pressure of 30.1 inches will cross the lake this 
morning into the afternoon as 29.3 inch low pressure exits eastward 
over the gulf of saint lawrence and another 29.3 inch low moves over 
north dakota. the dakotas low deepens to 29.1 inches in the vicinity 
of northern lake michigan friday morning, then moves over new 
england at 29.5 inches by saturday morning. a 30.2 inch ridge will 
extend over lake superior from central canada on saturday afternoon. 
a 29.3 inch low developing over the central plains saturday night 
will track to near lake huron at 28.9 inches by monday morning. high 
pressure of 30.4 inches will overspread the northern plains on 
monday and move to lake superior by tuesday as the low departs into 
northern quebec.



lsz265-122000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt thu mar 12 2026

...gale warning in effect from this evening through late friday
night...

.early this morning...northwest winds 20 to 30 knots. freezing
spray. a slight chance of snow showers. waves 4 to 7 feet
occasionally to 9 feet subsiding to 3 to 6 feet occasionally to
8 feet. 
.today...northwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon, then backing southeast late. a slight
chance of snow showers through early afternoon. waves subsiding
to calm to 2 feet. 
.tonight...southeast gales to 45 knots becoming east gales to
45 knots with a few storm force gusts to 50 knots possible late.
freezing spray. snow. waves building to 15 to 20 feet
occasionally to 25 feet. 
.friday...northeast gales to 45 knots becoming north gales to
40 knots in the afternoon. freezing spray. snow showers likely
through early afternoon. a chance of snow showers by mid
afternoon. waves subsiding to 10 to 14 feet occasionally to
18 feet. 
.friday night...northwest gales to 35 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves subsiding to 3 to
5 feet occasionally to 7 feet. 
.saturday...west winds 10 to 20 knots backing southwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.saturday night...south winds 10 to 20 knots backing southeast
after midnight. waves building to 1 to 3 feet. 
.sunday...northeast gales to 45 knots becoming north storm force
winds to 60 knots. heavy freezing spray. a chance of snow
showers. snow showers likely. waves building to 22 to 27 feet
occasionally to 34 feet. 
.monday...north storm force winds to 60 knots becoming northwest
storm force winds to 55 knots. heavy freezing spray. a chance of
snow showers. waves building to 25 to 30 feet occasionally to
38 feet, then subsiding to 10 to 14 feet occasionally to 18 feet.

$$

fzus63 kmqt 120800
glfls 
expires:202603122000;;063653

open lake forecast for lake superior
national weather service marquette mi
400 am edt thu mar 12 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...

transient high pressure of 30.1 inches will cross the lake this 
morning into the afternoon as 29.3 inch low pressure exits eastward 
over the gulf of saint lawrence and another 29.3 inch low moves over 
north dakota. the dakotas low deepens to 29.1 inches in the vicinity 
of northern lake michigan friday morning, then moves over new 
england at 29.5 inches by saturday morning. a 30.2 inch ridge will 
extend over lake superior from central canada on saturday afternoon. 
a 29.3 inch low developing over the central plains saturday night 
will track to near lake huron at 28.9 inches by monday morning. high 
pressure of 30.4 inches will overspread the northern plains on 
monday and move to lake superior by tuesday as the low departs into 
northern quebec.



lsz266-122000-
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 thu mar 12 2026

...gale warning in effect from this evening through late friday
night...

.early this morning...north winds 20 to 30 knots. freezing spray.
a slight chance of snow showers. waves 7 to 10 feet occasionally
to 13 feet subsiding to 5 to 8 feet occasionally to 10 feet. 
.today...north winds 10 to 20 knots diminishing to 5 to 15 knots
in the afternoon, then veering southeast late. freezing spray
through early afternoon. a slight chance of snow showers through
early afternoon. waves subsiding to calm to 2 feet. 
.tonight...southeast gales to 45 knots becoming east gales to
45 knots with a few storm force gusts to 50 knots possible late.
freezing spray. a chance of snow through midnight. snow after
midnight. waves building to 15 to 20 feet occasionally to
25 feet. 
.friday...east gales to 45 knots becoming north gales to 40 knots
late. freezing spray. snow showers likely through early
afternoon. a chance of snow showers by mid afternoon. waves
subsiding to 10 to 14 feet occasionally to 18 feet. 
.friday night...north gales to 35 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves subsiding to 3 to
6 feet occasionally to 8 feet. 
.saturday...northwest winds 10 to 20 knots backing southwest by
mid afternoon. waves subsiding to calm to 2 feet. 
.saturday night...south winds 10 to 20 knots. waves building to
1 to 3 feet. 
.sunday...east gales to 45 knots becoming northeast storm force
winds to 60 knots. heavy freezing spray. a chance of snow
showers. snow showers likely. waves building to 25 to 30 feet
occasionally to 38 feet. 
.monday...north hurricane force winds to 65 knots diminishing to
storm force winds to 55 knots. heavy freezing spray. a chance of
snow showers. waves subsiding to 15 to 20 feet occasionally to
25 feet. 

$$

fzus63 kmqt 120800
glfls 
expires:202603122000;;063654

open lake forecast for lake superior
national weather service marquette mi
400 am edt thu mar 12 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...

transient high pressure of 30.1 inches will cross the lake this 
morning into the afternoon as 29.3 inch low pressure exits eastward 
over the gulf of saint lawrence and another 29.3 inch low moves over 
north dakota. the dakotas low deepens to 29.1 inches in the vicinity 
of northern lake michigan friday morning, then moves over new 
england at 29.5 inches by saturday morning. a 30.2 inch ridge will 
extend over lake superior from central canada on saturday afternoon. 
a 29.3 inch low developing over the central plains saturday night 
will track to near lake huron at 28.9 inches by monday morning. high 
pressure of 30.4 inches will overspread the northern plains on 
monday and move to lake superior by tuesday as the low departs into 
northern quebec.



lsz267-122000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt thu mar 12 2026

...gale warning in effect from this evening through late friday
night...

.early this morning...north winds 15 to 25 knots. freezing spray.
waves 4 to 8 feet occasionally to 10 feet. 
.today...north winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. freezing spray through early afternoon. waves subsiding to
calm to 2 feet. 
.tonight...southeast winds 10 to 20 knots increasing to gales to
40 knots after midnight, then becoming east gales to 45 knots
late. freezing spray. a chance of snow through midnight. snow
after midnight. waves building to 10 to 14 feet occasionally to
18 feet. 
.friday...east gales to 45 knots becoming north gales to 35 knots
late. freezing spray. snow showers through early afternoon. a
chance of snow showers by mid afternoon. waves subsiding to 8 to
11 feet occasionally to 14 feet. 
.friday night...north gales to 35 knots diminishing to 15 to
25 knots after midnight. freezing spray. waves subsiding to 2 to
4 feet. 
.saturday...north winds 10 to 20 knots becoming west 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.saturday night...south winds 5 to 15 knots becoming southeast
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.sunday...east gales to 45 knots becoming northeast storm force
winds to 60 knots. heavy freezing spray. a chance of snow
showers. snow showers. waves building to 20 to 25 feet
occasionally to 31 feet. 
.monday...north storm force winds to 60 knots. heavy freezing
spray. snow showers likely. a chance of snow showers. waves
subsiding to 12 to 17 feet occasionally to 21 feet. 

$$