fzus63 kdtx 080242
glflh 
expires:202512081045;;195236

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 pm est sun dec 7 2025

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...high pressure, 30.40 inches, over the midwest will
build east and reach the central great lakes monday morning. the
next low pressure system will track through the northern great
lakes monday night into tuesday. an even stronger low, 29.30
inches, is on track to move through lower michigan on on
wednesday.


lhz361-362-081045-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
942 pm est sun dec 7 2025

.today...west winds 10 to 15 knots becoming northwest 20 to
25 knots with gusts to around 30 knots. a chance of snow in the
morning. waves 1 to 3 feet building to 6 to 9 feet. waves
occasionally around 12 feet. 
.tonight...northwest winds 20 to 25 knots with gusts to around
30 knots becoming west 5 to 10 knots. waves 5 to 7 feet subsiding
to 2 to 4 feet early in the morning. waves occasionally around
10 feet. 
.monday...west winds 5 to 10 knots becoming southwest 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet. 
.monday night...south winds 15 to 20 knots increasing to
30 knots. a chance of snow after midnight. waves 4 to 6 feet
building to 8 to 12 feet in the late evening and overnight. waves
occasionally around 15 feet. 
.tuesday...south winds 20 to 25 knots with gusts to around
30 knots becoming southwest 15 to 20 knots late in the morning...
then decreasing to 10 to 15 knots late in the afternoon. snow in
the morning...then a chance of snow. waves 10 to 14 feet
subsiding to 5 to 7 feet late in the afternoon. waves
occasionally around 18 feet. 
.wednesday...southeast winds 15 to 20 knots becoming north 20 to
25 knots until early evening...then becoming northwest 15 to
20 knots in the late evening and early morning. snow likely early
in the morning. a chance of snow in the late morning and early
afternoon. waves 6 to 9 feet. waves occasionally around 12 feet. 
.thursday...northwest winds 10 to 15 knots. a chance of snow in
the late evening and early morning. waves 3 to 5 feet. 


$$

fzus63 kdtx 080242
glflh 
expires:202512081045;;195237

open lake forecast for lake huron
national weather service detroit/pontiac mi
942 pm est sun dec 7 2025

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...high pressure, 30.40 inches, over the midwest will
build east and reach the central great lakes monday morning. the
next low pressure system will track through the northern great
lakes monday night into tuesday. an even stronger low, 29.30
inches, is on track to move through lower michigan on on
wednesday.


lhz363-462>464-081045-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
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-
942 pm est sun dec 7 2025

.today...west winds 10 to 15 knots becoming northwest 20 to
25 knots with gusts to around 30 knots. snow in the morning.
waves 1 to 3 feet building to 5 to 7 feet in the afternoon. waves
occasionally around 10 feet. 
.tonight...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late evening and
early morning...then becoming northwest 15 to 20 knots early in
the morning. a chance of snow showers. waves 6 to 9 feet. waves
occasionally around 12 feet. 
.monday...north winds 5 to 10 knots veering to the east in the
late morning and early afternoon...then veering to the south
early in the afternoon. a chance of snow showers in the morning.
waves 3 to 5 feet subsiding to 1 to 3 feet early in the
afternoon. 
.monday night...southwest winds 15 to 20 knots becoming south to
30 knots. a chance of snow after midnight. waves 4 to 6 feet
building to 8 to 12 feet in the late evening and overnight. waves
occasionally around 15 feet. 
.tuesday...south winds to 30 knots becoming southwest 15 to
20 knots. a chance of snow. a chance of rain late in the
afternoon...then rain and snow late in the evening. waves 8 to
12 feet. waves occasionally around 15 feet. 
.wednesday...south winds 20 to 25 knots backing to the north with
gusts to around 30 knots in the late morning and early
afternoon...then becoming northwest to 30 knots early in the
evening decreasing to 20 to 25 knots in the late evening and
early morning. rain and snow early in the morning...then a chance
of snow and rain until early morning. waves 8 to 12 feet. waves
occasionally around 15 feet. 
.thursday...west winds 15 to 20 knots decreasing to 10 to
15 knots early in the evening...then increasing to 15 to 20 knots
in the late evening and early morning. a chance of snow in the
late evening and early morning. waves 5 to 7 feet. waves
occasionally around 10 feet. 


$$

fzus63 kmkx 080233
glflm 
expires:202512081045;;194928

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
833 pm cst sun dec 7 2025

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...

light north to northeasterly winds over the southern two thirds of
the lake this evening veer due east and weaken overnight as high
pressure around 30.4 inches builds into the region. high pressure
exits monday afternoon as low pressure around 29.8 inches tracks 
through northern minnesota into lake superior, bringing stiff 
southwesterly winds gusting to gale force. a gale watch is in 
effect late monday night into early tuesday morning. a few gusts 
near 40 kt are possible over the far northern portions of the open
waters. as low pressure exits, expect winds to shift to become 
westerly through the day tuesday. 

another low around 29.0 inches from the northern plains will shift
winds to south-southwest tuesday evening, before the low crosses
near the center of lake michigan and brings strong southwesterly
winds to the southern half and light easterly winds to the
northern half overnight tuesday. winds will all shift to
northwesterly as the low exits into wednesday, with gales 
possible in the southern half throughout this time frame. winds
gradually diminish wednesday night, but remain northwesterly
through the end of the week.


lmz261-362-364-366-563-565-567-868-081045-
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-
833 pm cst sun dec 7 2025

sheboygan wi to pentwater mi north...

...gale watch in effect from monday evening through late monday
night...

.rest of tonight...north winds 10 to 20 kt diminishing to 5 to
10 kt after midnight, then becoming west late. slight chance of
snow showers overnight. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.monday...southwest winds 10 to 15 kt increasing to 15 to 25 kt.
slight chance of snow showers in the morning, then chance of snow
showers in the afternoon. waves 1 to 3 ft building to 4 to 6 ft
occasionally to 8 ft. 
.monday night...southwest winds to 30 kt increasing to gales to
35 kt. a few gusts to 40 kt. chance of snow showers in the 
evening, then snow overnight. waves 6 to 9 ft occasionally to 12 
ft building to 12 to 16 ft occasionally to 21 ft. 
.tuesday...west winds to 30 kt diminishing to 15 to 25 kt. snow
likely in the morning, then chance of snow and rain in the
afternoon. waves 10 to 14 ft occasionally to 18 ft subsiding to
6 to 9 ft occasionally to 12 ft. 
.tuesday night...south winds 15 to 25 kt backing to east to
30 kt. rain with snow likely in the evening, then snow and rain
overnight. waves 6 to 9 ft occasionally to 12 ft building to 8 to
12 ft occasionally to 16 ft. 
.wednesday...north gales to 35 kt diminishing to 30 kt. snow
likely in the morning, then chance of snow in the afternoon.
waves 8 to 11 ft occasionally to 14 ft. 
.wednesday night...northwest winds to 30 kt diminishing to 10 to
20 kt. waves 7 to 10 ft occasionally to 13 ft subsiding to 4 to
6 ft occasionally to 8 ft. 
.thursday...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.friday...northwest winds to 30 kt increasing to gales to 35 kt.
chance of snow. waves 4 to 7 ft occasionally to 9 ft building to
6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 080233
glflm 
expires:202512081045;;194929

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
833 pm cst sun dec 7 2025

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...

light north to northeasterly winds over the southern two thirds of
the lake this evening veer due east and weaken overnight as high
pressure around 30.4 inches builds into the region. high pressure
exits monday afternoon as low pressure around 29.8 inches tracks 
through northern minnesota into lake superior, bringing stiff 
southwesterly winds gusting to gale force. a gale watch is in 
effect late monday night into early tuesday morning. a few gusts 
near 40 kt are possible over the far northern portions of the open
waters. as low pressure exits, expect winds to shift to become 
westerly through the day tuesday. 

another low around 29.0 inches from the northern plains will shift
winds to south-southwest tuesday evening, before the low crosses
near the center of lake michigan and brings strong southwesterly
winds to the southern half and light easterly winds to the
northern half overnight tuesday. winds will all shift to
northwesterly as the low exits into wednesday, with gales 
possible in the southern half throughout this time frame. winds
gradually diminish wednesday night, but remain northwesterly
through the end of the week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-081045-
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-
833 pm cst sun dec 7 2025

sheboygan wi to pentwater mi south...

.rest of tonight...northeast winds 10 to 20 kt becoming east
10 to 15 kt. chance of snow showers. waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft. 
.monday...southeast winds 10 to 15 kt increasing to 10 to 20 kt
late in the morning, then becoming south early in the afternoon
increasing to 15 to 25 kt late. slight chance of snow showers in
the morning. waves 3 to 5 ft building to 4 to 6 ft occasionally
to 8 ft. 
.monday night...south winds to 30 kt becoming southwest. a few
gusts to gale force possible. chance of snow showers in the 
evening, then snow likely overnight. waves 6 to 9 ft occasionally 
to 12 ft building to 10 to 14 ft occasionally to 18 ft. 
.tuesday...southwest winds to 30 kt. chance of snow in the 
morning. waves 12 to 16 ft occasionally to 21 ft subsiding to 8 to
11 ft occasionally to 14 ft. 
.tuesday night...southwest winds to 30 kt increasing to gales to 
40 kt. rain. waves 8 to 12 ft occasionally to 16 ft building to 12
to 16 ft occasionally to 21 ft. 
.wednesday...northwest gales to 40 kt diminishing to gales to
35 kt. rain and snow likely in the morning, then chance of snow
in the afternoon. waves 12 to 16 ft occasionally to 21 ft. 
.wednesday night...northwest winds to 30 kt diminishing to 10 to
20 kt. chance of snow. waves 10 to 14 ft occasionally to 18 ft
subsiding to 6 to 9 ft occasionally to 12 ft. 
.thursday...northwest winds 10 to 20 kt. waves 4 to 6 ft
occasionally to 8 ft subsiding to 3 to 5 ft. 
.friday...northwest winds to 30 kt increasing to gales to 40 kt.
freezing spray. chance of snow. waves 7 to 10 ft occasionally to
13 ft building to 8 to 12 ft occasionally to 16 ft.  

$$

fzus63 kmqt 080301
glfls 
expires:202512080900;;195769

open lake forecast for lake superior
national weather service marquette mi
1001 pm est sun dec 7 2025

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 30.5 inch high over minnesota slides over the great lakes basin 
tonight into tomorrow as it weakens to 30.4 inches. by tomorrow 
afternoon, a 29.7 inch low develops over north dakota, eventually 
moving over lake superior tuesday morning as it deepens to 29.5 
inches. a second, stronger clipper low forms tuesday over the 
montana/canada border, absorbing the previous low tuesday night at 
29.2 inches as it approaches lake michigan. the low lifts through 
southern ontario on wednesday while weak 30.1 inch ridging traverses 
the plains. the low quickly ejects past the st. lawrence seaway on 
thursday as high pressure over the canadian rockies builds to 30.9 
inches, eventually dropping into the northern plains on friday.



lsz162-080900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm est sun dec 7 2025 /901 pm cst sun dec 7 2025/

.rest of tonight...northwest winds 10 to 20 knots becoming west
5 to 15 knots by midnight, then becoming southwest 10 to 20 knots
late. flurries after midnight. waves calm to 2 feet. 
.monday...southwest winds 10 to 20 knots increasing to 20 to
30 knots. a chance of snow showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.monday night...southwest winds 20 to 30 knots diminishing to
15 to 25 knots by midnight, then veering northwest late. snow
showers in the evening, then a chance of snow showers after
midnight. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet. 
.tuesday...northwest winds 5 to 15 knots backing west in the
afternoon. a chance of snow showers. waves subsiding to calm to
2 feet. 
.tuesday night...east winds 15 to 25 knots becoming northeast
20 to 30 knots after midnight. snow showers in the evening, then
a chance of snow showers after midnight. freezing spray after
midnight. waves building to 5 to 8 feet occasionally to 10 feet. 
.wednesday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray in the morning. a
chance of snow showers. waves subsiding to 2 to 4 feet. 
.wednesday night...northwest winds 10 to 20 knots veering north
after midnight. waves subsiding to calm to 2 feet. 
.thursday...northwest winds 10 to 20 knots increasing to 15 to
25 knots. a chance of snow showers. waves building to 1 to
3 feet. 
.friday...northwest winds 20 to 30 knots. a chance of snow
showers. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 080301
glfls 
expires:202512080900;;195770

open lake forecast for lake superior
national weather service marquette mi
1001 pm est sun dec 7 2025

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 30.5 inch high over minnesota slides over the great lakes basin 
tonight into tomorrow as it weakens to 30.4 inches. by tomorrow 
afternoon, a 29.7 inch low develops over north dakota, eventually 
moving over lake superior tuesday morning as it deepens to 29.5 
inches. a second, stronger clipper low forms tuesday over the 
montana/canada border, absorbing the previous low tuesday night at 
29.2 inches as it approaches lake michigan. the low lifts through 
southern ontario on wednesday while weak 30.1 inch ridging traverses 
the plains. the low quickly ejects past the st. lawrence seaway on 
thursday as high pressure over the canadian rockies builds to 30.9 
inches, eventually dropping into the northern plains on friday.



lsz263-080900-
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-
1001 pm est sun dec 7 2025

.rest of tonight...northwest winds 5 to 15 knots becoming
southwest 10 to 20 knots late. a chance of snow showers. waves
calm to 2 feet building to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. a chance of snow showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.monday night...southwest winds 15 to 25 knots veering west late.
snow showers. waves 3 to 6 feet occasionally to 8 feet. 
.tuesday...northwest winds 15 to 25 knots becoming west 5 to
15 knots in the afternoon. a chance of snow showers. waves
subsiding to calm to 2 feet. 
.tuesday night...east winds 15 to 25 knots becoming northeast
20 to 30 knots after midnight. snow showers likely in the
evening, then a chance of snow showers after midnight. freezing
spray after midnight. waves building to 7 to 10 feet occasionally
to 13 feet. 
.wednesday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray in the morning. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.wednesday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 1 to 3 feet. 
.thursday...northwest winds 10 to 20 knots increasing to 15 to
25 knots. a chance of snow showers. waves subsiding to calm to
2 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.friday...northwest winds 20 to 30 knots. freezing spray. a
chance of snow showers. waves building to 5 to 8 feet
occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 080301
glfls 
expires:202512080900;;195771

open lake forecast for lake superior
national weather service marquette mi
1001 pm est sun dec 7 2025

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 30.5 inch high over minnesota slides over the great lakes basin 
tonight into tomorrow as it weakens to 30.4 inches. by tomorrow 
afternoon, a 29.7 inch low develops over north dakota, eventually 
moving over lake superior tuesday morning as it deepens to 29.5 
inches. a second, stronger clipper low forms tuesday over the 
montana/canada border, absorbing the previous low tuesday night at 
29.2 inches as it approaches lake michigan. the low lifts through 
southern ontario on wednesday while weak 30.1 inch ridging traverses 
the plains. the low quickly ejects past the st. lawrence seaway on 
thursday as high pressure over the canadian rockies builds to 30.9 
inches, eventually dropping into the northern plains on friday.



lsz264-080900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm est sun dec 7 2025

.rest of tonight...northwest winds 5 to 15 knots backing west
late. a chance of snow showers after midnight. waves 1 to 3 feet
subsiding to calm to 2 feet, then building to 1 to 3 feet. 
.monday...west winds 10 to 20 knots backing southwest by late
morning, then increasing to 15 to 25 knots by mid afternoon. a
chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday night...southwest winds 15 to 25 knots. snow showers
likely. waves 3 to 6 feet occasionally to 8 feet. 
.tuesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. a chance of snow showers. waves
subsiding to 1 to 3 feet. 
.tuesday night...northeast winds 15 to 25 knots increasing to
20 to 30 knots after midnight. a chance of snow showers. freezing
spray after midnight. waves subsiding to calm to 2 feet, then
building to 7 to 10 feet occasionally to 13 feet. 
.wednesday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray. waves building to 8 to
11 feet occasionally to 14 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.wednesday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet. 
.thursday...northwest winds 10 to 20 knots. a chance of snow
showers. waves building to 3 to 5 feet occasionally to 7 feet. 
.friday...northwest winds 20 to 30 knots. freezing spray. a
chance of snow showers. waves building to 7 to 10 feet
occasionally to 13 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 080301
glfls 
expires:202512080900;;195772

open lake forecast for lake superior
national weather service marquette mi
1001 pm est sun dec 7 2025

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 30.5 inch high over minnesota slides over the great lakes basin 
tonight into tomorrow as it weakens to 30.4 inches. by tomorrow 
afternoon, a 29.7 inch low develops over north dakota, eventually 
moving over lake superior tuesday morning as it deepens to 29.5 
inches. a second, stronger clipper low forms tuesday over the 
montana/canada border, absorbing the previous low tuesday night at 
29.2 inches as it approaches lake michigan. the low lifts through 
southern ontario on wednesday while weak 30.1 inch ridging traverses 
the plains. the low quickly ejects past the st. lawrence seaway on 
thursday as high pressure over the canadian rockies builds to 30.9 
inches, eventually dropping into the northern plains on friday.



lsz265-080900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm est sun dec 7 2025

.rest of tonight...northwest winds 10 to 20 knots backing west by
midnight. flurries after midnight. waves 1 to 3 feet subsiding to
calm to 2 feet. 
.monday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 1 to 3 feet. 
.monday night...southwest winds 20 to 30 knots diminishing to
15 to 25 knots by midnight, then veering west late. snow showers.
waves building to 2 to 4 feet. 
.tuesday...west winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. a chance of snow showers. waves
subsiding to calm to 2 feet. 
.tuesday night...east winds 10 to 20 knots becoming northeast
20 to 30 knots after midnight. snow showers likely. waves
building to 5 to 8 feet occasionally to 10 feet. 
.wednesday...north gales to 35 knots becoming northwest 20 to
30 knots in the afternoon. a chance of snow showers. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 5 to 8 feet occasionally to 10 feet. 
.wednesday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves subsiding to 2 to 4 feet. 
.thursday...northwest winds 15 to 25 knots. snow showers likely.
waves subsiding to 1 to 3 feet, then building to 2 to 4 feet. 
.friday...northwest winds 20 to 30 knots increasing to gales to
40 knots. snow showers. freezing spray. waves building to 7 to
11 feet occasionally to 14 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 080301
glfls 
expires:202512080900;;195773

open lake forecast for lake superior
national weather service marquette mi
1001 pm est sun dec 7 2025

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 30.5 inch high over minnesota slides over the great lakes basin 
tonight into tomorrow as it weakens to 30.4 inches. by tomorrow 
afternoon, a 29.7 inch low develops over north dakota, eventually 
moving over lake superior tuesday morning as it deepens to 29.5 
inches. a second, stronger clipper low forms tuesday over the 
montana/canada border, absorbing the previous low tuesday night at 
29.2 inches as it approaches lake michigan. the low lifts through 
southern ontario on wednesday while weak 30.1 inch ridging traverses 
the plains. the low quickly ejects past the st. lawrence seaway on 
thursday as high pressure over the canadian rockies builds to 30.9 
inches, eventually dropping into the northern plains on friday.



lsz266-080900-
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-
1001 pm est sun dec 7 2025

...gale watch in effect from monday evening through late monday
night...

.rest of tonight...northwest winds 15 to 25 knots becoming west
10 to 20 knots late. a chance of snow showers. waves 3 to 6 feet
occasionally to 8 feet subsiding to 2 to 4 feet. 
.monday...southwest winds 10 to 20 knots increasing to 20 to
30 knots. flurries in the morning. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday night...southwest gales to 35 knots diminishing to 20 to
30 knots by midnight. a chance of snow showers in the evening,
then snow showers after midnight. waves building to 6 to 9 feet
occasionally to 11 feet, then subsiding to 4 to 7 feet
occasionally to 9 feet. 
.tuesday...west winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon. snow showers in the morning, then a
chance of snow showers in the afternoon. waves subsiding to 2 to
4 feet. 
.tuesday night...northeast winds 10 to 20 knots increasing to
20 to 30 knots after midnight. snow showers. waves subsiding to
1 to 3 feet, then building to 5 to 8 feet occasionally to
10 feet. 
.wednesday...north gales to 35 knots. freezing spray in the
morning. a chance of snow showers. waves building to 6 to 10 feet
occasionally to 13 feet. 
.wednesday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...northwest winds 15 to 25 knots. a chance of snow
showers, then snow showers likely. waves subsiding to 2 to
4 feet, then building to 3 to 6 feet occasionally to 8 feet. 
.friday...northwest winds 20 to 30 knots increasing to gales to
35 knots. snow showers. freezing spray. waves building to 10 to
14 feet occasionally to 18 feet, then subsiding to 9 to 12 feet
occasionally to 15 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 080301
glfls 
expires:202512080900;;195774

open lake forecast for lake superior
national weather service marquette mi
1001 pm est sun dec 7 2025

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 30.5 inch high over minnesota slides over the great lakes basin 
tonight into tomorrow as it weakens to 30.4 inches. by tomorrow 
afternoon, a 29.7 inch low develops over north dakota, eventually 
moving over lake superior tuesday morning as it deepens to 29.5 
inches. a second, stronger clipper low forms tuesday over the 
montana/canada border, absorbing the previous low tuesday night at 
29.2 inches as it approaches lake michigan. the low lifts through 
southern ontario on wednesday while weak 30.1 inch ridging traverses 
the plains. the low quickly ejects past the st. lawrence seaway on 
thursday as high pressure over the canadian rockies builds to 30.9 
inches, eventually dropping into the northern plains on friday.



lsz267-080900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm est sun dec 7 2025

.rest of tonight...northwest winds 15 to 25 knots diminishing to
10 to 20 knots late. a chance of snow showers. waves 3 to 6 feet
occasionally to 8 feet subsiding to 2 to 4 feet. 
.monday...west winds 15 to 25 knots becoming southwest 20 to
30 knots. a chance of snow showers in the morning. waves building
to 3 to 6 feet occasionally to 8 feet. 
.monday night...southwest winds 20 to 30 knots. snow showers.
waves building to 4 to 8 feet occasionally to 10 feet. 
.tuesday...west winds 15 to 25 knots. snow showers. waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.tuesday night...west winds 10 to 20 knots becoming northeast
15 to 25 knots after midnight. snow showers likely. waves
subsiding to 1 to 3 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.wednesday...north winds 20 to 30 knots. a chance of snow
showers. waves building to 4 to 8 feet occasionally to 10 feet. 
.wednesday night...northwest winds 15 to 25 knots. a chance of
snow showers. waves subsiding to 3 to 6 feet occasionally to
8 feet. 
.thursday...northwest winds 15 to 25 knots veering north. a
chance of snow showers, then snow showers likely. waves subsiding
to 2 to 4 feet, then building to 3 to 5 feet occasionally to
7 feet. 
.friday...northwest winds 15 to 25 knots becoming north 20 to
30 knots. snow showers likely. freezing spray. waves building to
7 to 10 feet occasionally to 13 feet. 

note, wave height forecasts are for ice free areas.

$$