fzus63 kdtx 161941
glflh 
expires:202603170345;;801682

open lake forecast for lake huron
national weather service detroit/pontiac mi
341 pm edt mon mar 16 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 system, 29.20 inches, exits northeast of
georgian bay this evening. northwest winds gusting to gales
behind the low through tonight. high pressure, 30.40 inches,
tracks through the ohio valley tomorrow, with the northern
extension reaching the central great lakes tomorrow evening,
supporting light winds. moderate southwest winds then return for
wednesday.


lhz361-170345-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
341 pm edt mon mar 16 2026

...gale warning in effect through tuesday morning...
...heavy freezing spray warning in effect through tuesday
afternoon...

.tonight...northwest at 35 knot gales decreasing to 30 knots
after midnight. gusts to 40 knot gales. scattered snow showers.
heavy freezing spray. waves 10 to 14 feet. waves occasionally
around 18 feet. 
.tuesday...northwest winds to 30 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots. scattered snow showers in the
morning. heavy freezing spray in the morning. waves 8 to 12 feet
subsiding to 4 to 6 feet late in the afternoon. waves
occasionally around 15 feet. 
.tuesday night...west winds 10 to 15 knots decreasing to 5 to
10 knots by midnight...then becoming southwest 10 to 15 knots
after midnight. waves 3 to 5 feet subsiding to 1 to 3 feet after
midnight. 
.wednesday...south winds 15 to 20 knots. a chance of snow. waves
4 to 6 feet building to 5 to 7 feet early in the afternoon. waves
occasionally around 10 feet. 
.wednesday night...south winds 10 to 15 knots veering to the
southwest after midnight. a chance of snow in the evening. waves
4 to 6 feet. waves occasionally around 8 feet. 
.thursday...west winds 10 to 15 knots veering to the northwest
late in the evening. a chance of snow and rain late in the
evening. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...southwest winds 10 to 15 knots backing to the east
until early evening...then becoming northeast 20 to 25 knots by
midnight. a chance of snow and rain...then a chance of snow by
midnight. waves 2 to 4 feet building to 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday...east winds 20 to 25 knots becoming southeast 15 to
20 knots early in the evening...then becoming west 20 to 25 knots
with gusts to around 30 knots by midnight. a chance of snow.
waves 8 to 12 feet. waves occasionally around 15 feet. 

wave heights are for ice free areas.

$$

fzus63 kdtx 161941
glflh 
expires:202603170345;;801683

open lake forecast for lake huron
national weather service detroit/pontiac mi
341 pm edt mon mar 16 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 system, 29.20 inches, exits northeast of
georgian bay this evening. northwest winds gusting to gales
behind the low through tonight. high pressure, 30.40 inches,
tracks through the ohio valley tomorrow, with the northern
extension reaching the central great lakes tomorrow evening,
supporting light winds. moderate southwest winds then return for
wednesday.


lhz362-363-462-170345-
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-
lake huron from port austin to harbor beach beyond 5nm off shore-
341 pm edt mon mar 16 2026

...gale warning in effect through tuesday morning...
...heavy freezing spray warning in effect through tuesday
afternoon...

.tonight...west winds to 30 knots becoming northwest at 35 knot
gales in the late evening and overnight. gusts to 40 knot gales.
numerous snow showers. heavy freezing spray. waves 12 to 16 feet
building to 14 to 18 feet after midnight. waves occasionally
around 23 feet. 
.tuesday...northwest at 35 knot gales with gusts to 40 knot gales
decreasing to 15 to 20 knots. heavy freezing spray. waves 12 to
16 feet subsiding to 8 to 12 feet in the afternoon. waves
occasionally around 20 feet. 
.tuesday night...west winds 10 to 15 knots backing to the
southwest after midnight. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.wednesday...south winds 15 to 20 knots. freezing spray in the
afternoon. waves 3 to 5 feet building to 6 to 9 feet in the late
morning and afternoon. waves occasionally around 12 feet. 
.wednesday night...south winds 15 to 20 knots becoming southwest
10 to 15 knots after midnight. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.thursday...southwest winds 10 to 15 knots veering to the west
late in the afternoon. a chance of rain and snow late in the
evening. waves 2 to 4 feet. 
.friday...west winds 10 to 15 knots veering to the east in the
late morning and early afternoon...then increasing to 15 to
20 knots early in the evening becoming northeast 20 to 25 knots
by midnight. a chance of rain and snow. waves 3 to 5 feet
building to 6 to 9 feet by midnight. waves occasionally around
12 feet. 
.saturday...northeast winds 20 to 25 knots veering to the east
with gusts to around 30 knots in the late morning and early
afternoon...then becoming southeast 15 to 20 knots early in the
evening becoming west to 30 knots by midnight. waves 8 to
12 feet. waves occasionally around 15 feet. 


$$

fzus63 kmkx 161949
glflm 
expires:202603170315;;802045

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 pm cdt mon mar 16 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 around 29.2 inches will continue northwest crossing 
over lake huron later this afternoon. gales are currently ongoing 
over the much of the lake with storm force gusts less certain at 
this point. we will maintain the storm warning at this time for 
some areas seeing close to storm force gusts. we will end the 
storm warning a bit earlier (0z) to account for the lack of 
significant wind gusts at this time. snow has slowed over the lake
with mostly light snow at this point but some drops in 
visibilities may still be expected at times. 

colder temperatures today will bringing heavy freezing spray to 
the entire lake, continuing into tuesday given the frigid
temperatures a breezy winds expected overnight. this low pressure
system will gradually exit into ontario early this evening. gales
and heavy freezing spray are expected to continue through much of
tonight and perhaps lingering into tuesday morning, particularly 
with freezing spray. nearshore gales will likely end by the mid to
late evening as higher winds with the pressure gradient shift 
east. winds will slowly diminish through tuesday, shifting to 
southerly ahead of another system tuesday afternoon into tuesday 
night. winds shift to southwesterly as the system progresses 
through ontario wednesday night into thursday morning, then to 
northwesterly on thursday as a cold front progresses southeastward
through the region.


lmz261-362-364-366-563-565-567-669-671-868-870-872-170315-
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 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 pentwater to manistee mi 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-
249 pm cdt mon mar 16 2026

north point light wi to grand haven mi north...

...storm warning in effect until 7 pm cdt this evening...
...heavy freezing spray warning in effect through tuesday
morning...
...gale warning in effect from 7 pm cdt this evening through
tuesday morning...

.tonight...northwest storm force winds to 50 kt diminishing to
gales to 35 kt. snow likely with slight chance of light freezing
rain this evening. visibility one quarter mile or less at times
this evening. waves 15 to 20 ft occasionally to 26 ft subsiding
to 12 to 16 ft occasionally to 21 ft. 
.tuesday...northwest winds to 30 kt diminishing to 15 to 25 kt
late in the morning, then diminishing to 10 to 20 kt early in the
afternoon becoming west late. heavy freezing spray in the
morning. waves 8 to 11 ft occasionally to 14 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.tuesday night...southwest winds 10 to 15 kt becoming south 15 to
25 kt. chance of snow. waves 4 to 6 ft occasionally to 8 ft. 
.wednesday...south winds 15 to 25 kt becoming southwest. chance
of snow. waves 5 to 8 ft occasionally to 10 ft. 
.wednesday night...southwest winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft. 
.thursday...west winds 10 to 15 kt becoming northwest. waves 1 to
3 ft. 
.thursday night...west winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 2 ft. 
.friday...southwest winds 10 to 20 kt becoming south. chance of
snow. waves 3 to 5 ft. 
.saturday...southeast winds 15 to 25 kt veering to southwest.
waves 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmqt 162001
glfls 
expires:202603170800;;802380

open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon mar 16 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 29.1 inch low over northern lake huron this afternoon shifts into 
quebec at 29.2 inches tonight. lake superior will be between this 
low and a 30.3 inch high over the great plains. the high shifts 
south of the great lakes basin through tuesday, extending weak 30.0 
inch ridging over the lake. a 29.7 inch trough over the canadian 
prairie wednesday morning will begin to push towards the lake on 
wednesday, weakening to 29.8 inches over northwestern ontario 
wednesday night. weak ridging of around 30.1 inches will build over 
the lake on thursday ahead of the next clipper low approaching the 
region on friday at around 29.7 inches.



lsz162-170800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt mon mar 16 2026 /300 pm cdt mon mar 16 2026/

...gale warning in effect until 8 pm edt /7 pm cdt/ this
evening...
...heavy freezing spray warning in effect until 2 am edt /1 am
cdt/ tuesday...

.late this afternoon...north gales to 35 knots. heavy freezing
spray. waves 6 to 9 feet occasionally to 11 feet. 
.tonight...north gales to 35 knots diminishing to 15 to 25 knots.
heavy freezing spray through midnight. waves subsiding to 2 to
4 feet. 
.tuesday...northwest winds 5 to 15 knots backing west in the
afternoon, then becoming southwest 10 to 20 knots late. a slight
chance of snow showers by mid afternoon. waves subsiding to calm
to 2 feet. 
.tuesday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then veering southwest late. a chance of
snow showers. waves building to 3 to 5 feet occasionally to
7 feet. 
.wednesday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.wednesday night...southwest winds 10 to 20 knots becoming west
5 to 15 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...north winds 5 to 15 knots veering south by mid
afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots becoming northeast
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.friday...east winds 10 to 20 knots increasing to 15 to 25 knots.
a chance of snow showers, possibly mixed with rain. waves
building to 4 to 7 feet occasionally to 9 feet. 
.saturday...northwest winds 15 to 25 knots becoming north 20 to
30 knots. a chance of snow showers, possibly mixed with rain.
waves building to 5 to 8 feet occasionally to 10 feet, then
subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 162001
glfls 
expires:202603170800;;802381

open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon mar 16 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 29.1 inch low over northern lake huron this afternoon shifts into 
quebec at 29.2 inches tonight. lake superior will be between this 
low and a 30.3 inch high over the great plains. the high shifts 
south of the great lakes basin through tuesday, extending weak 30.0 
inch ridging over the lake. a 29.7 inch trough over the canadian 
prairie wednesday morning will begin to push towards the lake on 
wednesday, weakening to 29.8 inches over northwestern ontario 
wednesday night. weak ridging of around 30.1 inches will build over 
the lake on thursday ahead of the next clipper low approaching the 
region on friday at around 29.7 inches.



lsz263-170800-
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 16 2026

...gale warning in effect until 2 am edt tuesday...
...heavy freezing spray warning in effect through tuesday
afternoon...

.late this afternoon...north gales to 40 knots. heavy freezing
spray. a slight chance of snow. waves 10 to 14 feet occasionally
to 18 feet. 
.tonight...north gales to 40 knots diminishing to 20 to 30 knots
late. heavy freezing spray. a slight chance of snow showers.
waves subsiding to 5 to 8 feet occasionally to 10 feet. 
.tuesday...north winds 10 to 20 knots becoming northwest 5 to
15 knots in the afternoon, then backing southwest late. waves
subsiding to calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a slight chance of snow showers through
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.wednesday...southwest winds 10 to 20 knots. waves subsiding to
2 to 4 feet. 
.wednesday night...west winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.thursday...north winds 5 to 15 knots veering south by mid
afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 2 to 4 feet. 
.friday...east winds 10 to 20 knots increasing to 20 to 30 knots.
a chance of snow showers, possibly mixed with rain. waves
building to 7 to 10 feet occasionally to 13 feet. 
.saturday...northwest winds 20 to 30 knots becoming north gales
to 35 knots. a chance of snow showers, possibly mixed with rain.
waves subsiding to 3 to 6 feet occasionally to 8 feet, then
building to 6 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 162001
glfls 
expires:202603170800;;802382

open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon mar 16 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 29.1 inch low over northern lake huron this afternoon shifts into 
quebec at 29.2 inches tonight. lake superior will be between this 
low and a 30.3 inch high over the great plains. the high shifts 
south of the great lakes basin through tuesday, extending weak 30.0 
inch ridging over the lake. a 29.7 inch trough over the canadian 
prairie wednesday morning will begin to push towards the lake on 
wednesday, weakening to 29.8 inches over northwestern ontario 
wednesday night. weak ridging of around 30.1 inches will build over 
the lake on thursday ahead of the next clipper low approaching the 
region on friday at around 29.7 inches.



lsz264-170800-
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 16 2026

...storm warning in effect until 2 am edt tuesday...
...heavy freezing spray warning in effect through tuesday
afternoon...
...gale warning in effect from 2 am edt tuesday through tuesday
morning...

.late this afternoon...north storm force winds to 50 knots. heavy
freezing spray. a chance of snow. waves 15 to 20 feet
occasionally to 25 feet. 
.tonight...north storm force winds to 55 knots diminishing to
gales to 45 knots after midnight. heavy freezing spray. a chance
of snow showers. waves subsiding to 8 to 11 feet occasionally to
14 feet. 
.tuesday...north winds 20 to 30 knots becoming northwest 10 to
20 knots in the afternoon, then becoming west 5 to 15 knots late.
heavy freezing spray through early afternoon. waves subsiding to
calm to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...southwest winds 10 to 20 knots. waves 3 to 5 feet
occasionally to 7 feet. 
.wednesday night...west winds 10 to 20 knots becoming northwest
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.thursday...north winds 5 to 15 knots backing northwest by mid
afternoon. waves subsiding to calm to 2 feet. 
.thursday night...south winds 5 to 15 knots becoming southeast
10 to 20 knots after midnight. a chance of snow showers, possibly
mixed with rain. waves building to 3 to 5 feet occasionally to
7 feet. 
.friday...east winds 10 to 20 knots becoming southeast gales to
35 knots. a chance of rain showers. a chance of snow showers.
waves building to 3 to 6 feet occasionally to 8 feet. 
.saturday...southeast gales to 35 knots backing north. waves
subsiding to 4 to 7 feet occasionally to 9 feet, then building to
9 to 12 feet occasionally to 15 feet. 

$$

fzus63 kmqt 162001
glfls 
expires:202603170800;;802383

open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon mar 16 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 29.1 inch low over northern lake huron this afternoon shifts into 
quebec at 29.2 inches tonight. lake superior will be between this 
low and a 30.3 inch high over the great plains. the high shifts 
south of the great lakes basin through tuesday, extending weak 30.0 
inch ridging over the lake. a 29.7 inch trough over the canadian 
prairie wednesday morning will begin to push towards the lake on 
wednesday, weakening to 29.8 inches over northwestern ontario 
wednesday night. weak ridging of around 30.1 inches will build over 
the lake on thursday ahead of the next clipper low approaching the 
region on friday at around 29.7 inches.



lsz265-170800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt mon mar 16 2026

...storm warning in effect until 2 am edt tuesday...
...heavy freezing spray warning in effect through tuesday
afternoon...
...gale warning in effect from 2 am edt tuesday through tuesday
morning...

.late this afternoon...north storm force winds to 55 knots. heavy
freezing spray. snow likely. waves 20 to 25 feet occasionally to
31 feet subsiding to 20 to 25 feet occasionally to 31 feet. 
.tonight...north storm force winds to 55 knots diminishing to
gales to 45 knots after midnight. heavy freezing spray. snow
showers likely through midnight. a chance of snow showers after
midnight. waves subsiding to 10 to 14 feet occasionally to
18 feet. 
.tuesday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon, then becoming west 10 to 20 knots
late. heavy freezing spray through early afternoon. a slight
chance of snow showers through early afternoon. waves subsiding
to 1 to 3 feet. 
.tuesday night...south winds 10 to 20 knots increasing to 20 to
30 knots. waves subsiding to calm to 2 feet, then building to
2 to 4 feet. 
.wednesday...southwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.wednesday night...west winds 10 to 20 knots. waves calm to
2 feet. 
.thursday...northwest winds 10 to 20 knots. waves calm to 2 feet.
.thursday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of rain and snow showers. waves
building to 2 to 4 feet. 
.friday...northeast winds 15 to 25 knots becoming southeast gales
to 35 knots. a chance of rain showers. a chance of snow showers.
waves building to 8 to 11 feet occasionally to 14 feet. 
.saturday...south gales to 35 knots veering northwest. a chance
of snow showers. waves building to 9 to 12 feet occasionally to
15 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 162001
glfls 
expires:202603170800;;802384

open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon mar 16 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 29.1 inch low over northern lake huron this afternoon shifts into 
quebec at 29.2 inches tonight. lake superior will be between this 
low and a 30.3 inch high over the great plains. the high shifts 
south of the great lakes basin through tuesday, extending weak 30.0 
inch ridging over the lake. a 29.7 inch trough over the canadian 
prairie wednesday morning will begin to push towards the lake on 
wednesday, weakening to 29.8 inches over northwestern ontario 
wednesday night. weak ridging of around 30.1 inches will build over 
the lake on thursday ahead of the next clipper low approaching the 
region on friday at around 29.7 inches.



lsz266-170800-
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 16 2026

...storm warning in effect until 2 am edt tuesday...
...heavy freezing spray warning in effect through tuesday
afternoon...
...gale warning in effect from 2 am edt tuesday through tuesday
morning...

.late this afternoon...north storm force winds to 60 knots. heavy
freezing spray. snow. waves 22 to 27 feet occasionally to 34 feet
subsiding to 22 to 27 feet occasionally to 34 feet. 
.tonight...north storm force winds to 60 knots diminishing to
gales to 40 knots late. heavy freezing spray. snow showers likely
through midnight. a chance of snow showers after midnight. waves
subsiding to 12 to 17 feet occasionally to 21 feet. 
.tuesday...north gales to 35 knots becoming northwest 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. heavy freezing spray. a chance of snow showers. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday night...southwest winds 10 to 20 knots becoming south
15 to 25 knots after midnight, then increasing to 20 to 30 knots
late. freezing spray after midnight. waves subsiding to 1 to
3 feet, then building to 4 to 7 feet occasionally to 9 feet. 
.wednesday...south winds 20 to 30 knots becoming southwest 15 to
25 knots by mid afternoon. freezing spray through early
afternoon. a slight chance of snow showers. waves building to
5 to 8 feet occasionally to 10 feet, then subsiding to 3 to
5 feet occasionally to 7 feet. 
.wednesday night...southwest winds 15 to 25 knots veering west
after midnight. waves subsiding to 2 to 4 feet. 
.thursday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.thursday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. a chance of snow showers. a chance of
rain showers after midnight. waves subsiding to calm to 2 feet,
then building to 3 to 6 feet occasionally to 8 feet. 
.friday...east winds 20 to 30 knots becoming southeast gales to
35 knots. a chance of rain showers. a chance of snow showers.
waves building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday...southeast gales to 40 knots veering northwest. a
chance of snow showers. waves subsiding to 6 to 9 feet
occasionally to 11 feet, then building to 11 to 15 feet
occasionally to 19 feet. 

$$

fzus63 kmqt 162001
glfls 
expires:202603170800;;802385

open lake forecast for lake superior
national weather service marquette mi
400 pm edt mon mar 16 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 29.1 inch low over northern lake huron this afternoon shifts into 
quebec at 29.2 inches tonight. lake superior will be between this 
low and a 30.3 inch high over the great plains. the high shifts 
south of the great lakes basin through tuesday, extending weak 30.0 
inch ridging over the lake. a 29.7 inch trough over the canadian 
prairie wednesday morning will begin to push towards the lake on 
wednesday, weakening to 29.8 inches over northwestern ontario 
wednesday night. weak ridging of around 30.1 inches will build over 
the lake on thursday ahead of the next clipper low approaching the 
region on friday at around 29.7 inches.



lsz267-170800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm edt mon mar 16 2026

...storm warning in effect until 2 am edt tuesday...
...heavy freezing spray warning in effect through tuesday
afternoon...
...gale warning in effect from 2 am edt tuesday through tuesday
morning...

.late this afternoon...north storm force winds to 55 knots. heavy
freezing spray. snow. waves 15 to 20 feet occasionally to
25 feet. 
.tonight...north storm force winds to 55 knots diminishing to
gales to 40 knots late. heavy freezing spray. a chance of snow
showers. waves subsiding to 10 to 14 feet occasionally to
18 feet. 
.tuesday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon, then diminishing to 10 to 20 knots
late. heavy freezing spray through early afternoon. a chance of
snow showers. waves subsiding to 2 to 4 feet. 
.tuesday night...west winds 10 to 20 knots becoming south 15 to
25 knots after midnight. waves subsiding to 1 to 3 feet, then
building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...south winds 20 to 30 knots. a chance of snow
showers. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 
.wednesday night...southwest winds 15 to 25 knots veering west
after midnight. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.thursday...northwest winds 10 to 20 knots. waves subsiding to
1 to 3 feet. 
.thursday night...west winds 10 to 20 knots backing south after
midnight. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 2 to 4 feet. 
.friday...east winds 15 to 25 knots becoming southeast gales to
35 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.saturday...southeast gales to 35 knots veering northwest. a
chance of snow showers. waves building to 10 to 14 feet
occasionally to 18 feet. 

$$