fzus63 kdtx 062039
glflh 
expires:202512070445;;122400

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 pm est sat dec 6 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, 30.30 inches, builds into the great
lakes this evening. low pressure, 29.90 inches, then tracks
across the southern great lakes sunday morning bringing light
snow to the area. brief strong northwest winds follow late sunday
for lake huron, with elevated wind potential carrying into the
early part of next week.


lhz361-362-070445-
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-
339 pm est sat dec 6 2025

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


$$

fzus63 kdtx 062039
glflh 
expires:202512070445;;122401

open lake forecast for lake huron
national weather service detroit/pontiac mi
339 pm est sat dec 6 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, 30.30 inches, builds into the great
lakes this evening. low pressure, 29.90 inches, then tracks
across the southern great lakes sunday morning bringing light
snow to the area. brief strong northwest winds follow late sunday
for lake huron, with elevated wind potential carrying into the
early part of next week.


lhz363-462>464-070445-
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-
339 pm est sat dec 6 2025

.tonight...west winds 15 to 20 knots decreasing to 5 to 10 knots 
after midnight. snow likely after midnight. waves 3 to 5 feet 
subsiding to 1 to 3 feet early in the morning. 
.sunday...west winds 5 to 10 knots increasing to 10 to 15 knots
late in the morning...then becoming northwest 15 to 20 knots
early in the afternoon increasing to 20 to 25 knots late in the
afternoon. snow in the morning...then a chance of snow in the
afternoon. waves 1 to 3 feet building to 6 to 9 feet. waves
occasionally around 12 feet. 
.sunday night...northwest winds 20 to 25 knots with gusts to
around 30 knots becoming north 15 to 20 knots after midnight.
waves 8 to 12 feet. waves occasionally around 15 feet. 
.monday...north winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and early afternoon...then veering to the
southeast early in the afternoon. waves 4 to 6 feet subsiding to
1 to 3 feet early in the afternoon. waves occasionally around
8 feet. 
.monday night...southwest winds 15 to 20 knots becoming south to
30 knots with gusts to 35 knot gales. 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 with gusts to 35 knot gales
becoming southwest 15 to 20 knots late in the afternoon. 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 subsiding to 6 to
9 feet late in the evening. waves occasionally around 15 feet. 
.wednesday...south winds 20 to 25 knots veering to the southwest
with gusts to around 30 knots in the late morning and early
afternoon...then veering to the north with gusts to around
30 knots until early morning. rain with snow likely 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. a chance of snow. waves
5 to 7 feet. waves occasionally around 10 feet. 


$$

fzus63 kmkx 062047
glflm 
expires:202512070415;;122640

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
247 pm cst sat dec 6 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...

winds will become northerly tonight into sunday and increase as 
low pressure of 29.9 inches crosses central illinois and indiana
and high pressure of 30.5 inches builds into the upper midwest.
winds will shift to the south monday afternoon as low pressure
around 30.0 inches passes north of lake superior. another low of 
29.7 inches will track from minnesota to sault ste. marie monday
night through tuesday morning. a period of southerly gales up to 
35 kt is looking more likely during this time, with gusts up to 40
kt possible over far northern lake michigan.

the next low will track across central wisconsin with a central
pressure of 29.1 inches tuesday night and then reach southern
ontario midday wednesday. gales are possible for the south half
during this time.


lmz261-362-364-366-563-565-567-868-070415-
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-
247 pm cst sat dec 6 2025

sheboygan wi to pentwater mi north...

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

$$

fzus63 kmkx 062047
glflm 
expires:202512070415;;122641

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
247 pm cst sat dec 6 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...

winds will become northerly tonight into sunday and increase as 
low pressure of 29.9 inches crosses central illinois and indiana
and high pressure of 30.5 inches builds into the upper midwest.
winds will shift to the south monday afternoon as low pressure
around 30.0 inches passes north of lake superior. another low of 
29.7 inches will track from minnesota to sault ste. marie monday
night through tuesday morning. a period of southerly gales up to 
35 kt is looking more likely during this time, with gusts up to 40
kt possible over far northern lake michigan.

the next low will track across central wisconsin with a central
pressure of 29.1 inches tuesday night and then reach southern
ontario midday wednesday. gales are possible for the south half
during this time.


lmz080-669-671-673-675-777-779-870-872-874-876-878-070415-
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-
247 pm cst sat dec 6 2025

sheboygan wi to pentwater mi south...

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

$$

fzus63 kmqt 062101
glfls 
expires:202512070900;;123275

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat dec 6 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 30.3 inch high over saskatchewan today progressively builds into 
the northern plains this evening to sunday, eventually strengthening 
to 30.4 inches over minnesota by sunday. the high continues into the 
great lakes basin monday. by monday afternoon, a 29.8 inch low 
develops over north dakota, eventually moving over lake superior 
tuesday morning as it deepens to 29.6 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 30.0 inch ridging traverses the plains. the low quickly ejects 
past the st lawrence seaway thursday as high pressure over the 
canadian rockies builds to 30.9 inches.



lsz162-070900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est sat dec 6 2025 /300 pm cst sat dec 6 2025/

.late this afternoon...northwest winds 10 to 20 knots. waves calm
to 2 feet. 
.tonight...northwest winds 10 to 20 knots increasing to 15 to
25 knots by midnight, then diminishing to 10 to 20 knots late.
isolated snow showers. waves building to 2 to 4 feet. 
.sunday...north winds 10 to 20 knots backing northwest. isolated
snow showers in the morning. waves subsiding to calm to 2 feet. 
.sunday night...northwest winds 5 to 15 knots backing southwest
late. a slight chance of snow showers after midnight. waves calm
to 2 feet. 
.monday...southwest winds 15 to 25 knots. 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 after
midnight. snow showers. waves subsiding to 1 to 3 feet. 
.tuesday...northwest winds 5 to 15 knots veering east 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. waves
building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...north winds 15 to 25 knots diminishing to 10 to
20 knots. a chance of snow showers. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to calm to 2 feet. 
.thursday...north winds 10 to 20 knots becoming northwest 15 to
25 knots. waves building to 1 to 3 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 062101
glfls 
expires:202512070900;;123276

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat dec 6 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 30.3 inch high over saskatchewan today progressively builds into 
the northern plains this evening to sunday, eventually strengthening 
to 30.4 inches over minnesota by sunday. the high continues into the 
great lakes basin monday. by monday afternoon, a 29.8 inch low 
develops over north dakota, eventually moving over lake superior 
tuesday morning as it deepens to 29.6 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 30.0 inch ridging traverses the plains. the low quickly ejects 
past the st lawrence seaway thursday as high pressure over the 
canadian rockies builds to 30.9 inches.



lsz263-070900-
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 est sat dec 6 2025

.late this afternoon...northwest winds 5 to 15 knots. isolated
snow showers. waves 1 to 3 feet. 
.tonight...northwest winds 10 to 20 knots. scattered snow
showers. waves building to 2 to 4 feet. 
.sunday...north winds 15 to 25 knots diminishing to 10 to
20 knots by late morning, then backing northwest by mid
afternoon. isolated snow showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 1 to 3 feet. 
.sunday night...northwest winds 5 to 15 knots backing southwest
late. a slight chance of snow showers. waves subsiding to calm to
2 feet. 
.monday...southwest winds 15 to 25 knots. a chance of snow
showers in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday night...southwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. snow showers. waves subsiding to
3 to 5 feet occasionally to 7 feet. 
.tuesday...northwest winds 10 to 20 knots becoming north 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. a chance of snow showers. freezing
spray after midnight. waves building to 5 to 8 feet occasionally
to 10 feet. 
.wednesday...north winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of snow showers. waves subsiding to 2 to
4 feet. 
.thursday...north winds 10 to 20 knots increasing to 15 to
25 knots. waves subsiding to 1 to 3 feet, then building to 3 to
5 feet occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 062101
glfls 
expires:202512070900;;123277

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat dec 6 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 30.3 inch high over saskatchewan today progressively builds into 
the northern plains this evening to sunday, eventually strengthening 
to 30.4 inches over minnesota by sunday. the high continues into the 
great lakes basin monday. by monday afternoon, a 29.8 inch low 
develops over north dakota, eventually moving over lake superior 
tuesday morning as it deepens to 29.6 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 30.0 inch ridging traverses the plains. the low quickly ejects 
past the st lawrence seaway thursday as high pressure over the 
canadian rockies builds to 30.9 inches.



lsz264-070900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est sat dec 6 2025

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 062101
glfls 
expires:202512070900;;123278

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat dec 6 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 30.3 inch high over saskatchewan today progressively builds into 
the northern plains this evening to sunday, eventually strengthening 
to 30.4 inches over minnesota by sunday. the high continues into the 
great lakes basin monday. by monday afternoon, a 29.8 inch low 
develops over north dakota, eventually moving over lake superior 
tuesday morning as it deepens to 29.6 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 30.0 inch ridging traverses the plains. the low quickly ejects 
past the st lawrence seaway thursday as high pressure over the 
canadian rockies builds to 30.9 inches.



lsz265-070900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est sat dec 6 2025

.late this afternoon...northwest winds 15 to 25 knots. isolated
snow showers. waves 2 to 4 feet. 
.tonight...northwest winds 15 to 25 knots increasing to 20 to
30 knots late. scattered snow showers. waves subsiding to 1 to
3 feet, then building to 3 to 5 feet occasionally to 7 feet. 
.sunday...northwest winds 20 to 30 knots. scattered snow showers.
freezing spray in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots by midnight. a chance of snow showers. waves
subsiding to calm to 2 feet. 
.monday...southwest winds 10 to 20 knots increasing to 20 to
30 knots in the afternoon. a slight chance of snow showers in the
afternoon. waves building to 1 to 3 feet. 
.monday night...southwest winds 20 to 30 knots. snow showers.
waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.tuesday...west winds 15 to 25 knots becoming northwest 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. a chance of snow showers in the
evening, then snow showers likely after midnight. waves building
to 3 to 6 feet occasionally to 8 feet. 
.wednesday...north gales to 35 knots diminishing to 20 to
30 knots. a 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. 
.thursday...north winds 20 to 30 knots backing northwest. a
chance of snow showers. waves subsiding to 2 to 4 feet, then
building to 3 to 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 062101
glfls 
expires:202512070900;;123279

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat dec 6 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 30.3 inch high over saskatchewan today progressively builds into 
the northern plains this evening to sunday, eventually strengthening 
to 30.4 inches over minnesota by sunday. the high continues into the 
great lakes basin monday. by monday afternoon, a 29.8 inch low 
develops over north dakota, eventually moving over lake superior 
tuesday morning as it deepens to 29.6 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 30.0 inch ridging traverses the plains. the low quickly ejects 
past the st lawrence seaway thursday as high pressure over the 
canadian rockies builds to 30.9 inches.



lsz266-070900-
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 est sat dec 6 2025

.late this afternoon...northwest winds 15 to 25 knots. scattered
snow showers. waves 3 to 6 feet occasionally to 8 feet. 
.tonight...northwest winds 15 to 25 knots increasing to 20 to
30 knots late. scattered snow showers. waves subsiding to 2 to
4 feet, then building to 3 to 6 feet occasionally to 8 feet. 
.sunday...northwest winds 20 to 30 knots. freezing spray.
scattered snow showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots by midnight, then backing west late. a chance of
snow showers. waves subsiding to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots increasing to 20 to
30 knots in the afternoon. a chance of snow showers in the
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.monday night...southwest gales to 35 knots diminishing to 20 to
30 knots after midnight. snow showers. waves building to 4 to
8 feet occasionally to 10 feet. 
.tuesday...west winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon. a chance of snow showers. waves
subsiding to 1 to 3 feet. 
.tuesday night...east winds 10 to 20 knots becoming northeast
20 to 30 knots after midnight. a chance of snow showers. waves
building to 4 to 7 feet occasionally to 9 feet. 
.wednesday...north winds 20 to 30 knots diminishing to 15 to
25 knots. a 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. 
.thursday...north winds 15 to 25 knots increasing to 20 to
30 knots. a chance of snow showers, then snow showers likely.
waves building to 4 to 7 feet occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 062101
glfls 
expires:202512070900;;123280

open lake forecast for lake superior
national weather service marquette mi
400 pm est sat dec 6 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 30.3 inch high over saskatchewan today progressively builds into 
the northern plains this evening to sunday, eventually strengthening 
to 30.4 inches over minnesota by sunday. the high continues into the 
great lakes basin monday. by monday afternoon, a 29.8 inch low 
develops over north dakota, eventually moving over lake superior 
tuesday morning as it deepens to 29.6 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 30.0 inch ridging traverses the plains. the low quickly ejects 
past the st lawrence seaway thursday as high pressure over the 
canadian rockies builds to 30.9 inches.



lsz267-070900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est sat dec 6 2025

.late this afternoon...northwest winds 15 to 25 knots. scattered
snow showers. waves 4 to 7 feet occasionally to 9 feet subsiding
to 3 to 6 feet occasionally to 8 feet. 
.tonight...northwest winds 10 to 20 knots increasing to 15 to
25 knots by midnight. snow showers. waves subsiding to 2 to
4 feet, then building to 3 to 6 feet occasionally to 8 feet. 
.sunday...north winds 15 to 25 knots becoming northwest 20 to
30 knots by late morning, then becoming north to 30 knots with a
few gale force gusts to 35 knots possible by mid afternoon.
freezing spray. numerous snow showers in the morning. scattered
snow showers in the afternoon. waves building to 5 to 8 feet
occasionally to 10 feet. 
.sunday night...north winds 15 to 25 knots becoming northwest
10 to 20 knots by midnight. a chance of snow showers. waves
subsiding to 1 to 3 feet. 
.monday...southwest winds 10 to 20 knots increasing to 20 to
30 knots in the afternoon. a chance of snow showers. 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...southwest winds 15 to 25 knots becoming west 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...east winds 15 to 25 knots. snow showers likely.
waves subsiding to 1 to 3 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...northeast winds 20 to 30 knots becoming north 15 to
25 knots. a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.thursday...north winds 15 to 25 knots. a chance of snow showers,
then snow showers likely. waves building to 3 to 5 feet
occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$