fzus63 kdtx 092008
glflh 
expires:202603100415;;916627

open lake forecast for lake huron
national weather service detroit/pontiac mi
408 pm 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...a surface low over south-central ontario has crossed
into quebec this afternoon, preceding the expansion of an 
elongated trough axis into the southern great lakes late 
overnight. a more active stretch of weather arrives tuesday night 
into wednesday as low pressure, 29.50 inches, lifts across lower 
michigan. expect several rounds of showers and thunderstorms, 
including some strong to severe storms. all severe hazards will be
possible. the system's frontal passage eventually leads to a 
transition to melting snowfall.


lhz361-100415-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
408 pm edt mon mar 9 2026

.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
building to 2 to 4 feet in the late morning and afternoon. 
.tuesday night...northeast winds 10 to 15 knots increasing to
20 to 25 knots. snow...freezing rain and sleet likely. waves 2 to
4 feet building to 6 to 9 feet in the late evening and overnight.
waves occasionally around 12 feet. 
.wednesday...northeast winds 15 to 20 knots. snow and sleet
likely in the morning...then snow likely...a chance of sleet and
freezing rain in the afternoon. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.wednesday night...northwest winds 20 to 25 knots. gusts to
30 knots in the late evening and overnight. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.thursday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then becoming southeast 15 to
20 knots with gusts to around 30 knots late in the evening. snow
likely late in the evening. waves 4 to 6 feet subsiding to 1 to
3 feet late in the afternoon...then building to 6 to 9 feet late
in the evening. waves occasionally around 12 feet. 
.friday...east winds to 30 knots backing to the northwest by
midnight. gusts to 35 knot gales. snow likely early in the
morning...then a chance of snow early in the evening. waves 12 to
16 feet. waves occasionally around 20 feet. 
.saturday...northwest winds 20 to 25 knots decreasing to 10 to
15 knots until early evening...then becoming southeast 15 to
20 knots by midnight. a chance of snow by midnight. waves 8 to
12 feet subsiding to 5 to 7 feet in the late morning and early
afternoon...then subsiding to 1 to 3 feet early in the evening
building to 3 to 5 feet by midnight. waves occasionally around
15 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 092008
glflh 
expires:202603100415;;916628

open lake forecast for lake huron
national weather service detroit/pontiac mi
408 pm 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...a surface low over south-central ontario has crossed
into quebec this afternoon, preceding the expansion of an 
elongated trough axis into the southern great lakes late 
overnight. a more active stretch of weather arrives tuesday night 
into wednesday as low pressure, 29.50 inches, lifts across lower 
michigan. expect several rounds of showers and thunderstorms, 
including some strong to severe storms. all severe hazards will be
possible. the system's frontal passage eventually leads to a 
transition to melting snowfall.


lhz362-363-100415-
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-
408 pm edt mon mar 9 2026

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

wave heights are for ice free areas.

$$

fzus63 kdtx 092008
glflh 
expires:202603100415;;916629

open lake forecast for lake huron
national weather service detroit/pontiac mi
408 pm 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...a surface low over south-central ontario has crossed
into quebec this afternoon, preceding the expansion of an 
elongated trough axis into the southern great lakes late 
overnight. a more active stretch of weather arrives tuesday night 
into wednesday as low pressure, 29.50 inches, lifts across lower 
michigan. expect several rounds of showers and thunderstorms, 
including some strong to severe storms. all severe hazards will be
possible. the system's frontal passage eventually leads to a 
transition to melting snowfall.


lhz462>464-100415-
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-
408 pm edt mon mar 9 2026

.tonight...southwest winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.tuesday...north winds 5 to 10 knots increasing to 10 to 15 knots
in the afternoon. waves 1 to 3 feet building to 3 to 5 feet late
in the afternoon. 
.tuesday night...northeast winds 10 to 15 knots. rain and a
chance of thunderstorms. waves 3 to 5 feet. 
.wednesday...north winds 10 to 15 knots increasing to 15 to
20 knots early in the afternoon. rain. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.wednesday night...northwest winds 20 to 25 knots with gusts to
around 30 knots. waves 6 to 9 feet. waves occasionally around
12 feet. 
.thursday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the morning...then decreasing to 5 to 10 knots
late in the afternoon becoming south 10 to 15 knots late in the
evening. a chance of snow late in the evening. waves 5 to 7 feet
subsiding to 2 to 4 feet late in the afternoon. waves
occasionally around 10 feet. 
.friday...southeast winds to 30 knots veering to the southwest
early in the evening...then becoming northwest 20 to 25 knots by
midnight. gusts to 35 knot gales. snow and rain likely early in
the morning...then a chance of rain and snow early in the
evening. waves 8 to 12 feet building to 12 to 16 feet by
midnight. waves occasionally around 20 feet. 
.saturday...west winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and early afternoon...then becoming
southwest 5 to 10 knots early in the evening becoming east 10 to
15 knots by midnight. a chance of snow early in the evening. a
chance of snow and rain by midnight. waves 10 to 14 feet
subsiding to 2 to 4 feet. waves occasionally around 18 feet. 

wave heights are for ice free areas.

$$

fzus63 kmkx 091935
glflm 
expires:202603100315;;914955

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
235 pm 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 evening as high
pressure around 29.9 inches pushes into the upper great lakes.
marine dense fog may develop over far southern lake michigan early
tuesday morning with the lull in the winds. a cold front will 
gradually bring a wind shift to the west- northwest and eventually
north- northeast. this front will accelerate from north to south 
overnight down lake michigan overnight. brisk northeast winds of 
15 to 25 kt developing tuesday morning will persist through 
tuesday night.

low pressure around 29.6 inches then develops in the central great
plains and progresses into northern illinois tuesday night. there
is 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, mainly over the south half of the lake. 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.


lmz080-669-671-673-675-777-779-870-872-874-876-878-100315-
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-
235 pm cdt mon mar 9 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 10 to 20 kt backing to north 15 to 25 kt.
areas of dense fog overnight. waves 3 to 5 ft building to 4 to
6 ft occasionally to 8 ft. 
.tuesday...north winds to 30 kt becoming northeast 15 to 25 kt.
patchy fog. chance of rain showers and thunderstorms in the
afternoon. waves 5 to 8 ft occasionally to 10 ft. 
.tuesday night...northeast winds 15 to 25 kt becoming north.
rain, chance of showers and thunderstorms in the evening, then
rain with a chance of thunderstorms overnight. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 7 ft occasionally to
9 ft. 
.wednesday...north winds to 30 kt becoming northwest gales to
35 kt. rain likely in the morning, then chance of rain, snow and
light sleet in the afternoon. waves 7 to 10 ft occasionally to
13 ft building to 8 to 12 ft occasionally to 16 ft. 
.wednesday night...northwest winds to 30 kt diminishing to 15 to
25 kt. 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 backing to southwest.
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
45 kt. chance of rain and snow. waves 7 to 10 ft occasionally to
13 ft building to 12 to 16 ft occasionally to 21 ft. 
.friday...west gales to 45 kt becoming northwest gales to 40 kt.
waves 14 to 18 ft occasionally to 23 ft. 
.saturday...northeast winds 10 to 20 kt becoming southeast.
chance of snow. waves 4 to 6 ft occasionally to 8 ft subsiding to
3 to 5 ft.  

$$

fzus63 kmkx 091935
glflm 
expires:202603100315;;914954

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
235 pm 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 evening as high
pressure around 29.9 inches pushes into the upper great lakes.
marine dense fog may develop over far southern lake michigan early
tuesday morning with the lull in the winds. a cold front will 
gradually bring a wind shift to the west- northwest and eventually
north- northeast. this front will accelerate from north to south 
overnight down lake michigan overnight. brisk northeast winds of 
15 to 25 kt developing tuesday morning will persist through 
tuesday night.

low pressure around 29.6 inches then develops in the central great
plains and progresses into northern illinois tuesday night. there
is 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, mainly over the south half of the lake. 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.


lmz261-362-364-366-563-565-567-868-100315-
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-
235 pm cdt mon mar 9 2026

sheboygan wi to pentwater mi north...

.tonight...northeast winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. 
.tuesday...northeast winds to 30 kt. chance of snow showers and
slight chance of rain showers in the afternoon. waves 5 to 8 ft
occasionally to 10 ft. 
.tuesday night...northeast winds to 30 kt diminishing to 15 to
25 kt. rain, snow and light freezing rain likely in the evening,
then rain likely, chance of light freezing rain and snow
overnight. waves 6 to 9 ft occasionally to 12 ft. 
.wednesday...northeast winds to 30 kt becoming north. snow, rain,
light freezing rain and light sleet likely in the morning, then
chance of snow in the afternoon. waves 7 to 10 ft occasionally to
13 ft. 
.wednesday night...northwest winds to 30 kt. waves 7 to 10 ft
occasionally to 13 ft subsiding to 5 to 8 ft occasionally to
10 ft. 
.thursday...northwest winds 10 to 20 kt becoming southwest. waves
3 to 5 ft subsiding to 2 to 4 ft. 
.thursday night...south winds to 30 kt becoming southeast gales
to 40 kt. snow and rain. waves 7 to 10 ft occasionally to 13 ft
building to 12 to 16 ft occasionally to 21 ft. 
.friday...southeast gales to 40 kt veering to northwest. chance
of snow and rain. waves 14 to 18 ft occasionally to 23 ft. 
.saturday...northwest winds 10 to 20 kt backing to southeast.
chance of snow. waves 4 to 6 ft occasionally to 8 ft subsiding to
2 to 4 ft.  

$$

fzus63 kmqt 092001
glfls 
expires:202603100800;;916075

open lake forecast for lake superior
national weather service marquette mi
400 pm 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 30.1 inch high will build to 30.3 inches over manitoba and ontario 
tonight through tuesday with a 30.1 inch ridge extending over lake 
superior. 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, ahead of an 
approaching 29.5 inch low.



lsz266-100800-
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 pm edt mon mar 9 2026

.late this afternoon...north winds 10 to 20 knots. waves 5 to
9 feet occasionally to 11 feet. 
.tonight...north winds 10 to 20 knots veering northeast late. a
chance of snow. waves subsiding to 1 to 3 feet. 
.tuesday...northeast winds 10 to 20 knots veering east late. a
slight chance of snow. waves building to 2 to 4 feet. 
.tuesday night...east winds 15 to 25 knots backing northeast
late. a chance of snow through midnight, then snow likely after
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...northeast winds 15 to 25 knots becoming north 20 to
30 knots by mid afternoon. snow likely through early afternoon,
then a slight chance of snow by mid afternoon. freezing spray by
mid afternoon. 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...northwest winds 10 to 20 knots. waves subsiding to
1 to 3 feet, then building to 2 to 4 feet. 
.thursday night...southeast gales to 40 knots. freezing spray. a
chance of snow showers through midnight. snow showers likely
after midnight. waves building to 12 to 17 feet occasionally to
21 feet. 
.friday...north gales to 40 knots becoming northwest gales to
35 knots. a chance of snow showers. freezing spray. waves
building to 15 to 20 feet occasionally to 25 feet, then subsiding
to 9 to 12 feet occasionally to 15 feet. 
.saturday...northwest winds 15 to 25 knots becoming east gales to
35 knots. a chance of snow showers. freezing spray. waves
subsiding to 2 to 4 feet, then building to 8 to 11 feet
occasionally to 14 feet. 

$$

fzus63 kmqt 092001
glfls 
expires:202603100800;;916076

open lake forecast for lake superior
national weather service marquette mi
400 pm 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 30.1 inch high will build to 30.3 inches over manitoba and ontario 
tonight through tuesday with a 30.1 inch ridge extending over lake 
superior. 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, ahead of an 
approaching 29.5 inch low.



lsz267-100800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm edt mon mar 9 2026

.late this afternoon...northwest winds 10 to 20 knots. waves 5 to
9 feet occasionally to 11 feet. 
.tonight...north winds 10 to 20 knots veering northeast late. a
chance of snow after midnight. waves subsiding to 1 to 3 feet. 
.tuesday...northeast winds 10 to 20 knots. a slight chance of
snow. waves 1 to 3 feet. 
.tuesday night...east winds 15 to 25 knots backing northeast
late. a chance of snow through midnight, then snow after
midnight. waves building to 2 to 4 feet. 
.wednesday...northeast winds 15 to 25 knots becoming north 20 to
30 knots by mid afternoon. snow likely through early afternoon,
then a chance of snow by mid afternoon. freezing spray by mid
afternoon. 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 backing northwest by mid
afternoon. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 
.thursday night...southeast winds 20 to 30 knots increasing to
gales to 35 knots after midnight. heavy freezing spray. a chance
of snow showers through midnight. snow showers likely after
midnight. waves building to 9 to 12 feet occasionally to 15 feet.
.friday...east gales to 35 knots becoming northwest 20 to
30 knots. 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. 
.saturday...northwest winds 10 to 20 knots becoming east 20 to
30 knots. a chance of snow showers. freezing spray. waves
subsiding to 2 to 4 feet, then building to 5 to 8 feet
occasionally to 10 feet. 

$$

fzus63 kmqt 092001
glfls 
expires:202603100800;;916071

open lake forecast for lake superior
national weather service marquette mi
400 pm 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 30.1 inch high will build to 30.3 inches over manitoba and ontario 
tonight through tuesday with a 30.1 inch ridge extending over lake 
superior. 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, ahead of an 
approaching 29.5 inch low.



lsz162-100800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt mon mar 9 2026 /300 pm cdt mon mar 9 2026/

.late this afternoon...northwest winds 5 to 15 knots. waves 1 to
3 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. waves building to 1 to
3 feet. 
.tuesday...northeast winds 15 to 25 knots veering east in the
afternoon. a chance of snow. waves building to 3 to 5 feet
occasionally to 7 feet. 
.tuesday night...east winds 15 to 25 knots becoming northeast
10 to 20 knots after midnight. a chance of snow. waves subsiding
to 1 to 3 feet. 
.wednesday...north winds 10 to 20 knots backing northwest by mid
afternoon. a chance of snow through early afternoon. waves
subsiding to calm to 2 feet. 
.wednesday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...southwest winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.thursday night...east winds 15 to 25 knots increasing to 20 to
30 knots after midnight. snow showers likely. waves building to
6 to 9 feet occasionally to 11 feet. 
.friday...northwest winds 20 to 30 knots diminishing to 5 to
15 knots. a chance of snow showers. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to calm to
2 feet. 
.saturday...east winds 5 to 15 knots becoming northeast 20 to
30 knots. a chance of snow showers. freezing spray. waves
building to 5 to 8 feet occasionally to 10 feet. 

$$

fzus63 kmqt 092001
glfls 
expires:202603100800;;916072

open lake forecast for lake superior
national weather service marquette mi
400 pm 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 30.1 inch high will build to 30.3 inches over manitoba and ontario 
tonight through tuesday with a 30.1 inch ridge extending over lake 
superior. 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, ahead of an 
approaching 29.5 inch low.



lsz263-100800-
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 pm edt mon mar 9 2026

.late this afternoon...northwest winds 5 to 15 knots. waves 2 to
4 feet. 
.tonight...north winds 5 to 15 knots veering northeast after
midnight. a chance of snow. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.tuesday...northeast winds 10 to 20 knots veering east in the
afternoon. a slight chance of snow. waves building to 3 to 5 feet
occasionally to 7 feet. 
.tuesday night...east winds to 30 knots with a few gale force
gusts to 35 knots possible backing northeast after midnight. a
chance of snow through midnight, then snow likely after midnight.
waves subsiding to 1 to 3 feet, then building to 2 to 4 feet. 
.wednesday...north gales to 35 knots diminishing to 15 to
25 knots by mid afternoon. a chance of snow through early
afternoon. waves subsiding to 1 to 3 feet. 
.wednesday night...north winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...north winds less than 10 knots becoming southeast
10 to 20 knots by mid afternoon. waves building to 2 to 4 feet. 
.thursday night...southeast winds 20 to 30 knots becoming east
gales to 35 knots after midnight. a chance of snow showers
through midnight, then snow showers likely after midnight.
freezing spray after midnight. waves building to 11 to 15 feet
occasionally to 19 feet. 
.friday...north gales to 35 knots becoming northwest 10 to
20 knots. freezing spray. a chance of snow showers. waves
building to 12 to 17 feet occasionally to 21 feet, then subsiding
to 2 to 4 feet. 
.saturday...east winds 5 to 15 knots increasing to 20 to
30 knots. a chance of snow showers. freezing spray. waves
subsiding to calm to 2 feet, then building to 7 to 10 feet
occasionally to 13 feet. 

$$

fzus63 kmqt 092001
glfls 
expires:202603100800;;916073

open lake forecast for lake superior
national weather service marquette mi
400 pm 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 30.1 inch high will build to 30.3 inches over manitoba and ontario 
tonight through tuesday with a 30.1 inch ridge extending over lake 
superior. 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, ahead of an 
approaching 29.5 inch low.



lsz264-100800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm edt mon mar 9 2026

.late this afternoon...north winds 10 to 20 knots. waves 4 to
7 feet occasionally to 9 feet subsiding to 3 to 6 feet
occasionally to 8 feet. 
.tonight...northeast winds 5 to 15 knots. a chance of snow. waves
subsiding to 1 to 3 feet. 
.tuesday...northeast winds 5 to 15 knots veering east in the
afternoon. waves 1 to 3 feet. 
.tuesday night...east winds 10 to 20 knots becoming northeast
5 to 15 knots late. a slight chance of snow through midnight,
then snow likely after midnight. waves building to 2 to 4 feet. 
.wednesday...north winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a chance of snow through early
afternoon. waves 2 to 4 feet. 
.wednesday night...north winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 1 to 3 feet. 
.thursday...north winds 5 to 15 knots becoming southeast 10 to
20 knots by mid afternoon. waves subsiding to calm to 2 feet,
then building to 3 to 5 feet occasionally to 7 feet. 
.thursday night...southeast gales to 35 knots. freezing spray. a
chance of snow showers. waves building to 12 to 17 feet
occasionally to 21 feet. 
.friday...north gales to 35 knots becoming northwest 15 to
25 knots. a chance of snow showers. freezing spray. waves
subsiding to 5 to 8 feet occasionally to 10 feet. 
.saturday...north winds 10 to 20 knots becoming east gales to
35 knots. a chance of snow showers. freezing spray. waves
subsiding to calm to 2 feet, then building to 8 to 11 feet
occasionally to 14 feet. 

$$

fzus63 kmqt 092001
glfls 
expires:202603100800;;916074

open lake forecast for lake superior
national weather service marquette mi
400 pm 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 30.1 inch high will build to 30.3 inches over manitoba and ontario 
tonight through tuesday with a 30.1 inch ridge extending over lake 
superior. 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, ahead of an 
approaching 29.5 inch low.



lsz265-100800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt mon mar 9 2026

.late this afternoon...north winds 10 to 20 knots. waves 2 to
4 feet. 
.tonight...northeast winds 10 to 20 knots. a chance of snow.
waves subsiding to 1 to 3 feet. 
.tuesday...northeast winds 10 to 20 knots veering east late. a
slight chance of snow. waves 1 to 3 feet. 
.tuesday night...east winds 15 to 25 knots backing northeast
late. a chance of snow through midnight, then snow likely after
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...north winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. snow likely through early afternoon,
then a slight chance of snow by mid afternoon. freezing spray by
mid afternoon. waves building to 5 to 8 feet occasionally to
10 feet. 
.wednesday night...north winds 15 to 25 knots becoming northwest
10 to 20 knots after midnight. freezing spray through midnight.
waves subsiding to 2 to 4 feet. 
.thursday...northwest winds 10 to 20 knots backing southeast by
mid afternoon. waves subsiding to calm to 2 feet, then building
to 2 to 4 feet. 
.thursday night...southeast gales to 40 knots. freezing spray. a
chance of snow showers through midnight. snow showers likely
after midnight. waves building to 11 to 15 feet occasionally to
19 feet. 
.friday...north gales to 40 knots becoming northwest 20 to
30 knots. a chance of snow showers. freezing spray. waves
building to 12 to 17 feet occasionally to 21 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.saturday...northwest winds 15 to 25 knots becoming east gales to
35 knots. a chance of snow showers. freezing spray. waves
subsiding to 1 to 3 feet, then building to 8 to 11 feet
occasionally to 14 feet. 

$$