fzus63 kdtx 120140
glflh 
expires:202603120945;;047297

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 pm edt wed mar 11 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 thursday 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 watch remains in 
effect.


lhz361-120945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
940 pm edt wed mar 11 2026

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

.rest of tonight...northwest winds 20 to 25 knots increasing to
30 knots after midnight...then decreasing to 20 to 25 knots early
in the morning. waves 8 to 12 feet. waves occasionally around
15 feet. 
.thursday...northwest winds 15 to 20 knots becoming west 10 to
15 knots late in the afternoon. waves 6 to 9 feet subsiding to
3 to 5 feet late in the afternoon. waves occasionally around
12 feet. 
.thursday night...west winds 5 to 10 knots becoming southeast
10 to 15 knots by midnight...then increasing to 20 to 25 knots
with gusts to 35 knot gales after midnight. snow likely after
midnight. snow may be heavy at times after midnight. waves 2 to
4 feet subsiding to 1 to 3 feet by midnight...then building to
6 to 9 feet after midnight. waves occasionally around 12 feet. 
.friday...southeast at 35 knot gales becoming east to 30 knots in
the late morning and afternoon. gusts to 40 knot gales. snow.
waves 14 to 18 feet. waves occasionally around 23 feet. a gale
warning may be needed. 
.friday night...northwest at 35 knot gales decreasing to 20 to
25 knots. 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 becoming south
10 to 15 knots late in the evening. waves 6 to 9 feet subsiding
to 1 to 3 feet. waves occasionally around 12 feet. 
.sunday...southeast winds 15 to 20 knots becoming east to
30 knots in the late morning and early afternoon...then becoming
northeast at 40 knot gales . snow likely in the late morning and
early afternoon. snow and rain. freezing rain by midnight. waves
5 to 7 feet building to 12 to 16 feet. waves occasionally around
20 feet. a gale warning may be needed. 
.monday...north at 35 knot gales backing to the northwest until
early evening...then decreasing to 30 knots by midnight. gusts to
40 knot gales. snow and rain likely early in the morning...then a
chance of snow until early evening. waves 12 to 16 feet. waves
occasionally around 20 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 120140
glflh 
expires:202603120945;;047298

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 pm edt wed mar 11 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 thursday 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 watch remains in 
effect.


lhz362-363-120945-
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-
940 pm edt wed mar 11 2026

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

.rest of tonight...northwest winds to 30 knots with gusts to
35 knot gales. waves 10 to 14 feet. waves occasionally around
18 feet. 
.thursday...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. 
.thursday night...west winds 5 to 10 knots backing to the
southwest by midnight...then becoming southeast 20 to 25 knots
with gusts to 35 knot gales after midnight. snow likely after
midnight. waves 3 to 5 feet building to 6 to 9 feet after
midnight. waves occasionally around 12 feet. 
.friday...southeast at 35 knot gales becoming south to 30 knots
in the late morning and early afternoon...then veering to the
southwest early in the afternoon. gusts to 40 knot gales. snow
likely in the morning...then a chance of rain and snow in the
afternoon. waves 14 to 18 feet. waves occasionally around
23 feet. a gale warning may be needed. 
.friday night...west at 35 knot gales veering to the northwest by
midnight...then decreasing to 30 knots after midnight. gusts to
40 knot gales. waves 14 to 18 feet. waves occasionally around
23 feet. 
.saturday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots late in the morning...then
decreasing to 5 to 10 knots late in the afternoon becoming
southeast 10 to 15 knots late in the evening. waves 10 to 14 feet
subsiding to 2 to 4 feet. waves occasionally around 18 feet. 
.sunday...east winds 15 to 20 knots increasing to 30 knots in the
late morning and early afternoon...then becoming northeast at
35 knot gales with gusts to 40 knot gales . snow likely early in
the morning...then snow...rain and freezing rain. waves 5 to
7 feet building to 15 to 20 feet. waves occasionally around
25 feet. a gale warning may be needed. 
.monday...north at 40 knot gales backing to the west until early
evening...then becoming northwest to 30 knots by midnight. snow
and rain likely early in the morning...then a chance of snow in
the late morning and early afternoon. waves 14 to 18 feet. waves
occasionally around 23 feet. 


$$

fzus63 kdtx 120140
glflh 
expires:202603120945;;047299

open lake forecast for lake huron
national weather service detroit/pontiac mi
940 pm edt wed mar 11 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 thursday 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 watch remains in 
effect.


lhz462>464-120945-
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-
940 pm edt wed mar 11 2026

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

.rest of tonight...northwest winds 20 to 25 knots increasing to
30 knots after midnight...then decreasing to 20 to 25 knots early
in the morning. waves 8 to 12 feet. waves occasionally around
15 feet. 
.thursday...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. 
.thursday night...northwest winds 5 to 10 knots backing to the
southwest by midnight...then becoming southeast 15 to 20 knots
with gusts to around 30 knots after midnight. snow likely after
midnight. waves 2 to 4 feet building to 5 to 7 feet after
midnight. waves occasionally around 10 feet. 
.friday...south at 35 knot gales veering to the southwest early
in the afternoon. gusts to 45 knot gales. rain and snow 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. a gale warning may be needed. 
.friday night...west at 35 knot gales with gusts to 45 knot gales
decreasing to 30 knots with gusts to 35 knot gales 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 5 to 10 knots late in the morning...then
becoming east 10 to 15 knots late in the evening. a chance of
snow late in the evening. waves 8 to 12 feet subsiding to 2 to
4 feet late in the afternoon. waves occasionally around 15 feet. 
.sunday...east winds 15 to 20 knots increasing to 35 knot gales
with gusts to 40 knot gales. rain and snow. waves 6 to 9 feet
building to 10 to 14 feet . waves occasionally around 18 feet. a
gale warning may be needed. 
.monday...southwest at 35 knot gales with gusts to 40 knot gales
veering to the west early in the evening...then decreasing to
30 knots by midnight. rain and snow likely early in the morning...
then a chance of snow and rain in the late morning and early
afternoon. waves 12 to 16 feet. waves occasionally around
20 feet. 


$$

fzus63 kmkx 120244
glflm 
expires:202603120915;;049573

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
944 pm cdt wed mar 11 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...

low pressure of 29.5 inches over southeast ontario/southwest
quebec will continue to pull away to the northeast the remainder 
of tonight. northwest winds gusting to gale force at times over
the next few hours but have largely come below gale force. gale
warning remains in effect until 6z at this time.

lighter winds are likely later tonight into early thursday as 
high pressure of 30.2 inches briefly moves through. strong low 
pressure of 29.0 inches is then expected to move through northern 
wisconsin into northern michigan thursday night into friday. 
increasing southerly winds are expected later thursday into 
thursday night ahead of the low. though the cold lake may dampen 
the gust potential thursday night, southerly gales are still 
likely, especially gioven the precipitation potential over the
lake. there is a better chance for west to northwest gales on 
friday behind the low, with a few gusts to storm force not out of 
the question. a gale watch remains in effect for thursday evening 
through friday evening. 

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 airmass behind the low may lead to a round
of heavy freezing spray sunday night into monday as the strong
winds and higher waves linger.


lmz080-669-671-673-675-777-779-870-872-874-876-878-120915-
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-
944 pm cdt wed mar 11 2026

sheboygan wi to pentwater mi south...

...gale warning in effect until 1 am cdt thursday...
...gale watch in effect from thursday evening through late friday
night...

.rest of tonight...northwest winds to 30 kt diminishing to 15 to
25 kt. waves 8 to 12 ft occasionally to 16 ft subsiding to 6 to
9 ft occasionally to 12 ft. 
.thursday...northwest winds 10 to 20 kt backing to south. waves
4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft. 
.thursday night...south winds to 30 kt increasing to gales to
40 kt late in the evening, then increasing to storm force winds
to 50 kt after midnight becoming southwest late. chance of rain.
waves 4 to 6 ft occasionally to 8 ft building to 14 to 18 ft
occasionally to 23 ft. 
.friday...west storm force winds to 50 kt. waves 14 to 18 ft
occasionally to 23 ft. 
.friday night...northwest gales to 40 kt diminishing to 15 to
25 kt overnight. waves 14 to 18 ft occasionally to 23 ft
subsiding to 8 to 12 ft occasionally to 16 ft. 
.saturday...northwest winds 10 to 15 kt veering to southeast 5 to
10 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to
4 ft. 
.saturday night...east winds 10 to 20 kt increasing to 30 kt.
chance of snow. waves 2 to 4 ft building to 6 to 9 ft
occasionally to 12 ft. 
.sunday...east gales to 35 kt increasing to gales to 40 kt. rain
and snow. waves 10 to 14 ft occasionally to 18 ft building to
14 to 18 ft occasionally to 23 ft. 
.monday...northwest gales to 45 kt diminishing to gales to 40 kt.
freezing spray. chance of snow. waves 20 to 25 ft occasionally to
33 ft subsiding to 18 to 23 ft occasionally to 30 ft.  

$$

fzus63 kmkx 120244
glflm 
expires:202603120915;;049572

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
944 pm cdt wed mar 11 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...

low pressure of 29.5 inches over southeast ontario/southwest
quebec will continue to pull away to the northeast the remainder 
of tonight. northwest winds gusting to gale force at times over
the next few hours but have largely come below gale force. gale
warning remains in effect until 6z at this time.

lighter winds are likely later tonight into early thursday as 
high pressure of 30.2 inches briefly moves through. strong low 
pressure of 29.0 inches is then expected to move through northern 
wisconsin into northern michigan thursday night into friday. 
increasing southerly winds are expected later thursday into 
thursday night ahead of the low. though the cold lake may dampen 
the gust potential thursday night, southerly gales are still 
likely, especially gioven the precipitation potential over the
lake. there is a better chance for west to northwest gales on 
friday behind the low, with a few gusts to storm force not out of 
the question. a gale watch remains in effect for thursday evening 
through friday evening. 

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 airmass behind the low may lead to a round
of heavy freezing spray sunday night into monday as the strong
winds and higher waves linger.


lmz261-362-364-366-563-565-567-868-120915-
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-
944 pm cdt wed mar 11 2026

sheboygan wi to pentwater mi north...

...gale warning in effect until 1 am cdt thursday...
...gale watch in effect from thursday evening through late friday
night...

.rest of tonight...northwest gales to 35 kt diminishing to 30 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.thursday...northwest winds 15 to 25 kt backing to southwest
10 to 20 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.thursday night...south winds to 30 kt becoming southwest gales
to 45 kt. snow and rain likely in the evening, then snow with
rain likely overnight. waves 4 to 6 ft occasionally to 8 ft
building to 14 to 18 ft occasionally to 23 ft. 
.friday...southwest gales to 45 kt veering to northwest. chance
of snow and rain in the morning, then chance of snow in the
afternoon. waves 14 to 18 ft occasionally to 23 ft. 
.friday night...northwest gales to 40 kt diminishing to 30 kt
overnight. waves 12 to 16 ft occasionally to 21 ft subsiding to
8 to 11 ft occasionally to 14 ft. 
.saturday...northwest winds 10 to 20 kt becoming southwest 10 to
15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 1 to
3 ft. 
.saturday night...southeast winds 10 to 20 kt increasing to
30 kt. chance of snow. waves 1 to 3 ft building to 5 to 8 ft
occasionally to 10 ft. 
.sunday...east gales to 35 kt becoming northeast gales to 40 kt.
snow likely. waves 8 to 12 ft occasionally to 16 ft building to
14 to 18 ft occasionally to 23 ft. 
.monday...northwest gales to 45 kt diminishing to gales to 40 kt.
heavy freezing spray. snow likely. waves 20 to 25 ft occasionally
to 33 ft subsiding to 15 to 20 ft occasionally to 26 ft.  

$$

fzus63 kmqt 120201
glfls 
expires:202603120800;;047733

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed mar 11 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 29.5 inch low over southern quebec this evening extends an 
inverted trough of 30.0 inches back over lake superior tonight. 
transient high pressure of 30.1 inches will cross the lake early 
thursday as the first low moves into 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.



lsz264-120800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt wed mar 11 2026

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

.rest of tonight...north winds 20 to 30 knots backing northwest
after midnight, then becoming north 15 to 25 knots late. freezing
spray. a slight chance of snow. waves 5 to 8 feet occasionally to
10 feet subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...north winds 10 to 20 knots becoming northwest 5 to
15 knots in the afternoon, then becoming southeast 10 to 20 knots
late. a slight chance of snow showers through early afternoon.
waves subsiding to calm to 2 feet. 
.thursday night...southeast gales to 45 knots backing east late.
freezing spray. a chance of snow through midnight. snow likely
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 by mid afternoon. freezing spray. a chance of snow.
waves subsiding to 9 to 12 feet occasionally to 15 feet. 
.friday night...north gales to 35 knots diminishing to 20 to
30 knots after midnight. freezing spray through midnight. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.saturday...west winds 10 to 20 knots becoming southwest 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.saturday night...southwest winds 10 to 20 knots becoming
northeast 15 to 25 knots after midnight. freezing spray after
midnight. waves building to 4 to 7 feet occasionally to 9 feet. 
.sunday...northeast gales to 35 knots becoming north storm force
winds to 55 knots. heavy freezing spray. a chance of snow
showers. waves building to 17 to 22 feet occasionally to 28 feet.
.monday...north storm force winds to 55 knots diminishing to
gales to 35 knots. heavy freezing spray. waves subsiding to 5 to
8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202603120800;;047734

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed mar 11 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 29.5 inch low over southern quebec this evening extends an 
inverted trough of 30.0 inches back over lake superior tonight. 
transient high pressure of 30.1 inches will cross the lake early 
thursday as the first low moves into 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.



lsz265-120800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt wed mar 11 2026

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

.rest of tonight...northwest gales to 35 knots diminishing to
20 to 30 knots late. freezing spray. a chance of snow. waves 7 to
10 feet occasionally to 13 feet subsiding to 4 to 7 feet
occasionally to 9 feet. 
.thursday...northwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon, then becoming southeast 15 to 25 knots
late. a slight chance of snow showers through early afternoon.
waves subsiding to 1 to 3 feet. 
.thursday night...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 likely 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
40 knots by mid afternoon. freezing spray. snow likely through
early afternoon. a chance of snow by mid afternoon. waves
subsiding to 12 to 17 feet occasionally to 21 feet. 
.friday night...northwest gales to 35 knots diminishing to 20 to
30 knots after midnight. freezing spray. waves subsiding to 5 to
8 feet occasionally to 10 feet. 
.saturday...west winds 15 to 25 knots becoming southwest 10 to
20 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.saturday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. freezing spray after midnight. waves
building to 3 to 6 feet occasionally to 8 feet. 
.sunday...east gales to 40 knots becoming north storm force winds
to 55 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 55 knots becoming northwest
gales to 35 knots. heavy freezing spray. a chance of snow
showers. waves subsiding to 7 to 10 feet occasionally to 13 feet.

$$

fzus63 kmqt 120201
glfls 
expires:202603120800;;047735

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed mar 11 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 29.5 inch low over southern quebec this evening extends an 
inverted trough of 30.0 inches back over lake superior tonight. 
transient high pressure of 30.1 inches will cross the lake early 
thursday as the first low moves into 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.



lsz266-120800-
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 pm edt wed mar 11 2026

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

.rest of tonight...north gales to 35 knots diminishing to 20 to
30 knots late. freezing spray. a chance of snow. waves 9 to
12 feet occasionally to 15 feet subsiding to 6 to 9 feet
occasionally to 11 feet. 
.thursday...north winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then veering south late. freezing
spray through early afternoon. a slight chance of snow showers
through early afternoon. waves subsiding to 1 to 3 feet. 
.thursday night...southeast gales to 45 knots backing east late.
freezing spray. a chance of snow through midnight. snow likely
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
by mid afternoon. freezing spray. snow likely through early
afternoon. a chance of snow by mid afternoon. waves subsiding to
12 to 17 feet occasionally to 21 feet. 
.friday night...north gales to 40 knots diminishing to 20 to
30 knots after midnight. a slight chance of snow showers through
midnight. freezing spray. waves subsiding to 7 to 10 feet
occasionally to 13 feet. 
.saturday...northwest winds 15 to 25 knots becoming southwest
10 to 20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.saturday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. freezing spray after midnight. waves
building to 3 to 6 feet occasionally to 8 feet. 
.sunday...east gales to 40 knots becoming northeast 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 diminishing to
gales to 40 knots. heavy freezing spray. a chance of snow
showers. waves subsiding to 10 to 14 feet occasionally to
18 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202603120800;;047736

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed mar 11 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 29.5 inch low over southern quebec this evening extends an 
inverted trough of 30.0 inches back over lake superior tonight. 
transient high pressure of 30.1 inches will cross the lake early 
thursday as the first low moves into 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.



lsz267-120800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt wed mar 11 2026

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

.rest of tonight...north gales to 35 knots diminishing to 20 to
30 knots late. freezing spray. a chance of snow. waves 7 to
10 feet occasionally to 13 feet subsiding to 5 to 8 feet
occasionally to 10 feet. 
.thursday...north winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon. freezing spray through early
afternoon. waves subsiding to calm to 2 feet. 
.thursday night...southeast winds 15 to 25 knots increasing to
gales to 45 knots after midnight. a chance of snow through
midnight, then snow likely after midnight. freezing spray after
midnight. waves building to 11 to 15 feet occasionally to
19 feet. 
.friday...east gales to 45 knots becoming north gales to 40 knots
by mid afternoon. freezing spray. snow. waves subsiding to 10 to
14 feet occasionally to 18 feet. 
.friday night...north gales to 40 knots. a slight chance of snow
showers through midnight. freezing spray. waves subsiding to 5 to
8 feet occasionally to 10 feet. 
.saturday...north winds 15 to 25 knots becoming west 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.saturday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. freezing spray after midnight. waves
building to 3 to 5 feet occasionally to 7 feet. 
.sunday...east gales to 35 knots becoming northeast storm force
winds to 55 knots. heavy freezing spray. a chance of snow
showers. snow showers likely. waves building to 17 to 22 feet
occasionally to 28 feet. 
.monday...north storm force winds to 55 knots diminishing to
gales to 35 knots. heavy freezing spray. a chance of snow
showers. waves subsiding to 8 to 11 feet occasionally to 14 feet.

$$

fzus63 kmqt 120201
glfls 
expires:202603120800;;047731

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed mar 11 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 29.5 inch low over southern quebec this evening extends an 
inverted trough of 30.0 inches back over lake superior tonight. 
transient high pressure of 30.1 inches will cross the lake early 
thursday as the first low moves into 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.



lsz162-120800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt wed mar 11 2026 /900 pm cdt wed mar 11 2026/

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

.rest of tonight...northwest winds 15 to 25 knots diminishing to
5 to 15 knots. waves 2 to 4 feet subsiding to calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots backing south in the
afternoon, then becoming southeast 15 to 25 knots late. a chance
of snow showers by mid afternoon. waves building to 2 to 4 feet. 
.thursday night...east gales to 40 knots backing northeast late.
a slight chance of rain through midnight. snow. waves building to
11 to 15 feet occasionally to 19 feet. 
.friday...north gales to 35 knots becoming northwest 20 to
30 knots by mid afternoon. a chance of snow. waves subsiding to
6 to 9 feet occasionally to 11 feet. 
.friday night...northwest 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 backing southwest by mid
afternoon. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots becoming northeast
15 to 25 knots after midnight. freezing spray after midnight.
waves building to 3 to 6 feet occasionally to 8 feet. 
.sunday...northeast winds 20 to 30 knots becoming north gales to
40 knots. heavy freezing spray. a chance of snow showers. waves
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 9 to 12 feet occasionally to 15 feet. 
.monday...north gales to 35 knots becoming northwest 10 to
20 knots. heavy freezing spray. waves subsiding to calm to
2 feet. 

$$

fzus63 kmqt 120201
glfls 
expires:202603120800;;047732

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed mar 11 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 29.5 inch low over southern quebec this evening extends an 
inverted trough of 30.0 inches back over lake superior tonight. 
transient high pressure of 30.1 inches will cross the lake early 
thursday as the first low moves into 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.



lsz263-120800-
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 pm edt wed mar 11 2026

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

.rest of tonight...northwest winds 15 to 25 knots diminishing to
10 to 20 knots late. waves 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet. 
.thursday...northwest winds 5 to 15 knots backing south in the
afternoon, then becoming southeast 15 to 25 knots late. a slight
chance of snow showers by mid afternoon. waves subsiding to calm
to 2 feet, then building to 2 to 4 feet. 
.thursday night...southeast gales to 35 knots becoming east gales
to 40 knots after midnight. freezing spray. snow. waves building
to 15 to 20 feet occasionally to 25 feet. 
.friday...north gales to 40 knots diminishing to 20 to 30 knots
by mid afternoon. freezing spray. a chance of snow. waves
subsiding to 7 to 10 feet occasionally to 13 feet. 
.friday night...north winds 20 to 30 knots becoming northwest
10 to 20 knots after midnight. freezing spray through midnight.
waves subsiding to 2 to 4 feet. 
.saturday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.saturday night...southwest winds 5 to 15 knots becoming
northeast 15 to 25 knots after midnight. freezing spray after
midnight. waves building to 3 to 6 feet occasionally to 8 feet. 
.sunday...northeast gales to 40 knots becoming north gales to
45 knots. heavy freezing spray. a chance of snow showers. waves
building to 15 to 20 feet occasionally to 25 feet. 
.monday...north gales to 45 knots becoming northwest 20 to
30 knots. heavy freezing spray. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 

$$