fzus63 kdtx 091358
glflh 
expires:202603092200;;900616

open lake forecast for lake huron
national weather service detroit/pontiac mi
958 am edt mon mar 9 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...low pressure, 29.20 inches, tracks through northern
ontario today bringing moderate to strong southwesterly winds to
the central great lakes this morning. a brief break in the active
pattern develops late monday through tuesday before deepening
plains low pressure reaches the great lakes midweek.


lhz361-092200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
958 am edt mon mar 9 2026

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

wave heights are for ice free areas.

$$

fzus63 kdtx 091358
glflh 
expires:202603092200;;900617

open lake forecast for lake huron
national weather service detroit/pontiac mi
958 am edt mon mar 9 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...low pressure, 29.20 inches, tracks through northern
ontario today bringing moderate to strong southwesterly winds to
the central great lakes this morning. a brief break in the active
pattern develops late monday through tuesday before deepening
plains low pressure reaches the great lakes midweek.


lhz362-363-092200-
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-
958 am edt mon mar 9 2026

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

wave heights are for ice free areas.

$$

fzus63 kdtx 091358
glflh 
expires:202603092200;;900618

open lake forecast for lake huron
national weather service detroit/pontiac mi
958 am edt mon mar 9 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...low pressure, 29.20 inches, tracks through northern
ontario today bringing moderate to strong southwesterly winds to
the central great lakes this morning. a brief break in the active
pattern develops late monday through tuesday before deepening
plains low pressure reaches the great lakes midweek.


lhz462>464-092200-
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-
958 am edt mon mar 9 2026

.rest of today...south winds 15 to 20 knots decreasing to 10 to
15 knots late in the afternoon. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.tonight...southwest winds 5 to 10 knots veering to the north in
the late evening and overnight. waves 2 to 4 feet subsiding to
2 feet or less in the late evening and overnight. 
.tuesday...north winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. waves 1 to 3 feet. 
.tuesday night...northeast winds 10 to 15 knots. rain likely in
the evening...then rain after midnight. waves 3 to 5 feet. 
.wednesday...northeast winds 15 to 20 knots backing to the north
late in the morning...then becoming northwest 20 to 25 knots with
gusts to around 30 knots late in the afternoon. rain in the
morning...then rain likely late in the morning. a chance of snow
late in the afternoon. waves 5 to 7 feet building to 8 to 12 feet
late in the afternoon. waves occasionally around 15 feet. 
.thursday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
early afternoon...then decreasing to 5 to 10 knots early in the
evening becoming south 10 to 15 knots by midnight. a chance of.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.friday...south winds to 30 knots with gusts to 40 knot gales
increasing to 35 knot gales with gusts to 40 knot gales in the
late morning and early afternoon...then becoming southwest to
30 knots with gusts to 35 knot gales early in the evening veering
to the west by midnight. rain and snow likely until afternoon...
then a chance of rain and snow early in the evening. waves 8 to
12 feet. waves occasionally around 15 feet. a gale warning may be
needed. 

wave heights are for ice free areas.

$$

fzus63 kmkx 091403
glflm 
expires:202603092130;;900895

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt mon mar 9 2026

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

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

.synopsis...

breezy southwest winds will diminish through this afternoon as 
high pressure around 29.9 inches pushes into the upper great 
lakes. a cold front will gradually shift from north to south 
across lake michigan from late afternoon and through the night. 
modest to brisk northeast winds will develop into tuesday.

low pressure around 29.6 inches then develops in the central great
plains and progresses into northern illinois tuesday night, 
keeping winds northeasterly and gusty, with some potential for 
isolated thunderstorms across the southern third of the lake. low 
pressure ejects to the lower great lakes into wednesday morning, 
turning winds northwesterly. north to northwest gales are possible
wednesday morning through wednesday afternoon. winds gradually 
diminish into thursday morning.

another round of gales is possible thursday night into friday as a
compact clipper low of 29.2 inches crosses northern lake michigan.


lmz080-669-671-673-675-777-779-870-872-874-876-878-092130-
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-
903 am cdt mon mar 9 2026

sheboygan wi to pentwater mi south...

.rest of today...southwest winds to 30 kt becoming south 10 to
20 kt. waves 6 to 9 ft occasionally to 12 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.tonight...southeast winds 10 to 15 kt increasing to 10 to 20 kt.
patchy fog overnight. waves 3 to 5 ft. 
.tuesday...northwest winds 10 to 20 kt becoming north 15 to
25 kt. patchy fog. waves 4 to 7 ft occasionally to 9 ft building
to 5 to 8 ft occasionally to 10 ft. 
.tuesday night...northeast winds to 30 kt. areas of fog. rain
showers with a chance of thunderstorms. waves 6 to 9 ft
occasionally to 12 ft. 
.wednesday...north winds to 30 kt increasing to gales to 35 kt.
rain showers likely in the morning, then chance of rain and snow
showers in the afternoon. waves 8 to 11 ft occasionally to 14 ft
building to 10 to 14 ft occasionally to 18 ft. 
.wednesday night...northwest gales to 35 kt diminishing to 30 kt.
waves 10 to 14 ft occasionally to 18 ft subsiding to 8 to 12 ft
occasionally to 16 ft. 
.thursday...northwest winds 15 to 25 kt backing to southwest.
waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. 
.friday...west gales to 45 kt becoming northwest gales to 40 kt.
chance of rain and snow. waves 14 to 18 ft occasionally to 23 ft.
 

$$

fzus63 kmkx 091403
glflm 
expires:202603092130;;900894

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt mon mar 9 2026

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

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

.synopsis...

breezy southwest winds will diminish through this afternoon as 
high pressure around 29.9 inches pushes into the upper great 
lakes. a cold front will gradually shift from north to south 
across lake michigan from late afternoon and through the night. 
modest to brisk northeast winds will develop into tuesday.

low pressure around 29.6 inches then develops in the central great
plains and progresses into northern illinois tuesday night, 
keeping winds northeasterly and gusty, with some potential for 
isolated thunderstorms across the southern third of the lake. low 
pressure ejects to the lower great lakes into wednesday morning, 
turning winds northwesterly. north to northwest gales are possible
wednesday morning through wednesday afternoon. winds gradually 
diminish into thursday morning.

another round of gales is possible thursday night into friday as a
compact clipper low of 29.2 inches crosses northern lake michigan.


lmz261-362-364-366-563-565-567-868-092130-
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-
903 am cdt mon mar 9 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds to 30 kt diminishing to 10 to 20
kt. waves 7 to 10 ft occasionally to 13 ft subsiding to 3 to 5 
ft.
.tonight...northeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.tuesday...northeast winds 15 to 25 kt increasing to 30 kt. waves
5 to 8 ft occasionally to 10 ft. 
.tuesday night...northeast winds to 30 kt. patchy fog. rain
showers with a wintry mix likely. waves 6 to 9 ft occasionally to
12 ft.
.wednesday...northeast winds to 30 kt becoming north gales to
35 kt. snow and rain showers likely in the morning, then snow
showers likely in the afternoon. waves 8 to 11 ft occasionally to
14 ft building to 8 to 12 ft occasionally to 16 ft. 
.wednesday night...north winds to 30 kt becoming northwest. waves
8 to 12 ft occasionally to 16 ft subsiding to 7 to 10 ft
occasionally to 13 ft. 
.thursday...northwest winds 10 to 20 kt becoming west 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.friday...southwest gales to 40 kt becoming northwest. chance of
snow and rain. waves 15 to 20 ft occasionally to 26 ft subsiding
to 12 to 16 ft occasionally to 21 ft.  

$$

fzus63 kmqt 091400
glfls 
expires:202603092000;;900747

open lake forecast for lake superior
national weather service marquette mi
1000 am edt mon mar 9 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 29.0 low exits the area this afternoon before being replaced by a 
30.4 inch high over northern ontario tuesday. the high slowly moves 
into quebec tuesday night as 29.6 low pressure moves into the lower 
midwest. this low moves through the lower great lakes wednesday at 
29.5 inches. thursday, lake superior will be situated between a 29.3 
inch low over southern quebec, a 29.4 inch low over north dakota, a 
30.3 inch high over the lower mississippi river valley, and a 30.1 
inch ridge over hudson bay. the dakotas low arrives near the lake 
friday morning, then moves near the lower great lakes friday night. 
a 30.2 inch ridge will then follow across the upper great lakes 
saturday.



lsz264-092000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt mon mar 9 2026

...gale warning in effect until 2 pm edt this afternoon...

.rest of today...west winds 20 to 30 knots becoming northwest
10 to 20 knots late. waves 5 to 8 feet occasionally to 10 feet
subsiding to 3 to 5 feet occasionally to 7 feet. 
.tonight...north winds 5 to 15 knots veering northeast after
midnight. a chance of snow showers. waves subsiding to 1 to
3 feet. 
.tuesday...northeast winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. a slight chance of snow showers through early afternoon.
waves 1 to 3 feet. 
.tuesday night...east winds 10 to 20 knots. a chance of snow
showers. waves building to 2 to 4 feet. 
.wednesday...northeast winds 10 to 20 knots becoming north 15 to
25 knots by mid afternoon. a slight chance of snow showers
through early afternoon. freezing spray by mid afternoon. waves
2 to 4 feet. 
.wednesday 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. 
.thursday...southeast winds 15 to 25 knots increasing to gales to
40 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 12 to 17 feet occasionally to 21 feet. 
.friday...north gales to 45 knots becoming northwest gales to
35 knots. a chance of snow showers. waves subsiding to 5 to
8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 091400
glfls 
expires:202603092000;;900748

open lake forecast for lake superior
national weather service marquette mi
1000 am edt mon mar 9 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 29.0 low exits the area this afternoon before being replaced by a 
30.4 inch high over northern ontario tuesday. the high slowly moves 
into quebec tuesday night as 29.6 low pressure moves into the lower 
midwest. this low moves through the lower great lakes wednesday at 
29.5 inches. thursday, lake superior will be situated between a 29.3 
inch low over southern quebec, a 29.4 inch low over north dakota, a 
30.3 inch high over the lower mississippi river valley, and a 30.1 
inch ridge over hudson bay. the dakotas low arrives near the lake 
friday morning, then moves near the lower great lakes friday night. 
a 30.2 inch ridge will then follow across the upper great lakes 
saturday.



lsz265-092000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt mon mar 9 2026

...gale warning in effect until 2 pm edt this afternoon...

.rest of today...west gales to 35 knots diminishing to 20 to
30 knots in the afternoon, then becoming northwest 15 to 25 knots
late. waves 3 to 6 feet occasionally to 8 feet subsiding to 1 to
3 feet. 
.tonight...northwest winds 10 to 20 knots veering northeast late.
a chance of snow showers. waves subsiding to calm to 2 feet, then
building to 1 to 3 feet. 
.tuesday...northeast winds 15 to 25 knots. a slight chance of
snow showers. waves building to 2 to 4 feet. 
.tuesday night...east winds 15 to 25 knots. a chance of snow
showers. waves building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...northeast winds 20 to 30 knots backing north by mid
afternoon. freezing spray. a chance of snow showers. waves
building to 5 to 8 feet occasionally to 10 feet. 
.wednesday night...north winds 20 to 30 knots becoming northwest
10 to 20 knots after midnight. freezing spray. waves subsiding to
2 to 4 feet. 
.thursday...southeast winds 15 to 25 knots increasing to gales to
40 knots. snow showers likely. waves subsiding to calm to 2 feet,
then building to 11 to 15 feet occasionally to 19 feet. 
.friday...north gales to 45 knots becoming northwest gales to
35 knots. a chance of snow showers. waves building to 12 to
17 feet occasionally to 21 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 

$$

fzus63 kmqt 091400
glfls 
expires:202603092000;;900749

open lake forecast for lake superior
national weather service marquette mi
1000 am edt mon mar 9 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 29.0 low exits the area this afternoon before being replaced by a 
30.4 inch high over northern ontario tuesday. the high slowly moves 
into quebec tuesday night as 29.6 low pressure moves into the lower 
midwest. this low moves through the lower great lakes wednesday at 
29.5 inches. thursday, lake superior will be situated between a 29.3 
inch low over southern quebec, a 29.4 inch low over north dakota, a 
30.3 inch high over the lower mississippi river valley, and a 30.1 
inch ridge over hudson bay. the dakotas low arrives near the lake 
friday morning, then moves near the lower great lakes friday night. 
a 30.2 inch ridge will then follow across the upper great lakes 
saturday.



lsz266-092000-
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 mon mar 9 2026

...gale warning in effect until 2 pm edt this afternoon...

.rest of today...west winds 20 to 30 knots veering northwest in
the afternoon, then diminishing to 15 to 25 knots late. waves
7 to 10 feet occasionally to 13 feet subsiding to 4 to 7 feet
occasionally to 9 feet. 
.tonight...north winds 10 to 20 knots veering northeast late. a
chance of snow showers. waves subsiding to 1 to 3 feet. 
.tuesday...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. a slight chance of snow showers. waves
building to 2 to 4 feet. 
.tuesday night...east winds 15 to 25 knots. a chance of snow
showers. freezing spray after midnight. waves building to 3 to
5 feet occasionally to 7 feet. 
.wednesday...northeast winds 20 to 30 knots backing north by mid
afternoon. freezing spray. a chance of snow showers. waves
building to 5 to 8 feet occasionally to 10 feet. 
.wednesday night...north winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. freezing spray. waves building to
6 to 9 feet occasionally to 11 feet, then subsiding to 3 to
5 feet occasionally to 7 feet. 
.thursday...north winds 15 to 25 knots becoming southeast gales
to 45 knots. a chance of snow showers. waves subsiding to 1 to
3 feet, then building to 12 to 17 feet occasionally to 21 feet. 
.friday...north gales to 45 knots becoming northwest gales to
40 knots. a chance of snow showers. waves building to 15 to
20 feet occasionally to 25 feet, then subsiding to 9 to 12 feet
occasionally to 15 feet. 

$$

fzus63 kmqt 091400
glfls 
expires:202603092000;;900750

open lake forecast for lake superior
national weather service marquette mi
1000 am edt mon mar 9 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 29.0 low exits the area this afternoon before being replaced by a 
30.4 inch high over northern ontario tuesday. the high slowly moves 
into quebec tuesday night as 29.6 low pressure moves into the lower 
midwest. this low moves through the lower great lakes wednesday at 
29.5 inches. thursday, lake superior will be situated between a 29.3 
inch low over southern quebec, a 29.4 inch low over north dakota, a 
30.3 inch high over the lower mississippi river valley, and a 30.1 
inch ridge over hudson bay. the dakotas low arrives near the lake 
friday morning, then moves near the lower great lakes friday night. 
a 30.2 inch ridge will then follow across the upper great lakes 
saturday.



lsz267-092000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt mon mar 9 2026

.rest of today...west winds 20 to 30 knots becoming northwest
15 to 25 knots late. waves 7 to 10 feet occasionally to 13 feet
subsiding to 4 to 7 feet occasionally to 9 feet. 
.tonight...northwest winds 10 to 20 knots becoming north 5 to
15 knots after midnight, then becoming northeast 10 to 20 knots
late. a chance of snow showers. waves subsiding to 1 to 3 feet. 
.tuesday...northeast winds 10 to 20 knots. a slight chance of
snow showers. waves 1 to 3 feet. 
.tuesday night...east winds 15 to 25 knots backing northeast
after midnight. a chance of snow showers. waves building to 2 to
4 feet. 
.wednesday...northeast winds 15 to 25 knots becoming north 20 to
30 knots by mid afternoon. freezing spray. a chance of snow
showers. waves building to 4 to 7 feet occasionally to 9 feet. 
.wednesday night...north winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. freezing spray. waves subsiding to
2 to 4 feet. 
.thursday...north winds 10 to 20 knots becoming southeast gales
to 40 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 9 to 12 feet occasionally to 15 feet. 
.friday...north gales to 40 knots. 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. 

$$

fzus63 kmqt 091400
glfls 
expires:202603092000;;900745

open lake forecast for lake superior
national weather service marquette mi
1000 am edt mon mar 9 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 29.0 low exits the area this afternoon before being replaced by a 
30.4 inch high over northern ontario tuesday. the high slowly moves 
into quebec tuesday night as 29.6 low pressure moves into the lower 
midwest. this low moves through the lower great lakes wednesday at 
29.5 inches. thursday, lake superior will be situated between a 29.3 
inch low over southern quebec, a 29.4 inch low over north dakota, a 
30.3 inch high over the lower mississippi river valley, and a 30.1 
inch ridge over hudson bay. the dakotas low arrives near the lake 
friday morning, then moves near the lower great lakes friday night. 
a 30.2 inch ridge will then follow across the upper great lakes 
saturday.



lsz162-092000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt mon mar 9 2026 /900 am cdt mon mar 9 2026/

.rest of today...west winds 15 to 25 knots diminishing to 5 to
15 knots. waves 3 to 5 feet occasionally to 7 feet subsiding to
calm to 2 feet. 
.tonight...north winds 5 to 15 knots becoming northeast 10 to
20 knots after midnight. a chance of snow showers. waves calm to
2 feet. 
.tuesday...northeast winds 15 to 25 knots veering east late. a
slight chance of snow showers. waves building to 2 to 4 feet. 
.tuesday night...east winds 15 to 25 knots becoming northeast
10 to 20 knots after midnight. a chance of snow showers. waves
subsiding to 1 to 3 feet. 
.wednesday...northeast winds 10 to 20 knots becoming northwest
5 to 15 knots by mid afternoon. a slight chance of snow showers
through early afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...southeast winds 10 to 20 knots increasing to gales to
35 knots. a chance of snow showers, then snow showers, possibly
mixed with rain. waves building to 6 to 9 feet occasionally to
11 feet. 
.friday...northwest gales to 35 knots diminishing to 10 to
20 knots. waves building to 8 to 11 feet occasionally to 14 feet,
then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 091400
glfls 
expires:202603092000;;900746

open lake forecast for lake superior
national weather service marquette mi
1000 am edt mon mar 9 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 29.0 low exits the area this afternoon before being replaced by a 
30.4 inch high over northern ontario tuesday. the high slowly moves 
into quebec tuesday night as 29.6 low pressure moves into the lower 
midwest. this low moves through the lower great lakes wednesday at 
29.5 inches. thursday, lake superior will be situated between a 29.3 
inch low over southern quebec, a 29.4 inch low over north dakota, a 
30.3 inch high over the lower mississippi river valley, and a 30.1 
inch ridge over hudson bay. the dakotas low arrives near the lake 
friday morning, then moves near the lower great lakes friday night. 
a 30.2 inch ridge will then follow across the upper great lakes 
saturday.



lsz263-092000-
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 mon mar 9 2026

.rest of today...west winds 15 to 25 knots diminishing to 5 to
15 knots late. waves 4 to 7 feet occasionally to 9 feet subsiding
to 2 to 4 feet. 
.tonight...north winds 10 to 20 knots becoming northeast 15 to
25 knots after midnight. a chance of snow showers. waves
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.tuesday...northeast winds 15 to 25 knots veering east late. a
slight chance of snow showers. waves building to 2 to 4 feet. 
.tuesday night...east gales to 35 knots backing northeast after
midnight. a chance of snow showers. waves subsiding to 1 to
3 feet. 
.wednesday...northeast gales to 35 knots becoming north 15 to
25 knots by mid afternoon. a slight chance of snow showers
through early afternoon. waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.wednesday night...north winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...southeast winds 15 to 25 knots increasing to gales to
35 knots. a chance of rain showers, then snow showers, possibly
mixed with rain. waves building to 11 to 15 feet occasionally to
19 feet. 
.friday...northwest gales to 35 knots diminishing to 15 to
25 knots. a chance of snow showers. waves building to 12 to
17 feet occasionally to 21 feet, then subsiding to 2 to 4 feet. 

$$