fzus63 kdtx 070911
glflh 
expires:202512071715;;153274

open lake forecast for lake huron
national weather service detroit/pontiac mi
411 am 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...low pressure, 29.90 inches, tracks across the 
southern great lakes this morning bringing light snow to the 
area. brief strong northwest winds follow late tonight for lake 
huron, with elevated wind potential carrying into the early part 
of next week.


lhz363-462>464-071715-
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-
411 am est sun dec 7 2025

.today...west winds 10 to 15 knots becoming northwest 20 to
25 knots. 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. 
.tonight...northwest winds 20 to 25 knots. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.monday...north winds 5 to 10 knots veering to the south 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...south winds 15 to 20 knots increasing to 30 knots
with gusts to 35 knot gales. 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...southwest winds to 30 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots. snow...then rain and a chance
of snow late in the afternoon. waves 10 to 14 feet subsiding to
6 to 9 feet late in the afternoon. waves occasionally around
18 feet. 
.wednesday...south winds 20 to 25 knots with gusts to around
30 knots veering to the southwest 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 early in the morning...
then a chance of rain until early evening. a chance of snow.
waves 8 to 12 feet. waves occasionally around 15 feet. 
.thursday...west winds 15 to 20 knots. a chance of snow until
early morning. waves 5 to 7 feet. waves occasionally around
10 feet. 


$$

fzus63 kdtx 070911
glflh 
expires:202512071715;;153273

open lake forecast for lake huron
national weather service detroit/pontiac mi
411 am 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...low pressure, 29.90 inches, tracks across the 
southern great lakes this morning bringing light snow to the 
area. brief strong northwest winds follow late tonight for lake 
huron, with elevated wind potential carrying into the early part 
of next week.


lhz361-362-071715-
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-
411 am est sun dec 7 2025

.today...west winds 10 to 15 knots becoming northwest 20 to
25 knots. a chance of snow. waves 1 to 3 feet building to 6 to
9 feet. waves occasionally around 12 feet. 
.tonight...northwest winds 20 to 25 knots decreasing to 5 to
10 knots. waves 6 to 9 feet subsiding to 4 to 6 feet early in the
morning. waves occasionally around 12 feet. 
.monday...west winds 5 to 10 knots becoming southwest 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. a chance of snow. a chance of rain
late in the afternoon. waves 10 to 14 feet subsiding to 4 to
6 feet. waves occasionally around 18 feet. 
.wednesday...southeast winds 15 to 20 knots becoming north 20 to
25 knots until early evening...then decreasing to 15 to 20 knots
in the late evening and early morning. snow and rain likely early
in the morning. a chance of snow until early evening. a chance of
rain early in the evening. waves 6 to 9 feet. waves occasionally
around 12 feet. 
.thursday...northwest winds 10 to 15 knots. a chance of snow
until early morning. waves 4 to 6 feet. waves occasionally around
8 feet. 


$$

fzus63 kmkx 070833
glflm 
expires:202512071630;;150800

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
233 am 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...

breezy northerly winds are expected today between weakening low
pressure passing by well to the south and high pressure around 
30.5 inches building in from the west. winds will become lighter
tonight under the high.  

winds will then shift to the south by monday afternoon, as the
high heads eastward ahead of an approaching low. the low around 
29.7 inches will track from minnesota to sault ste. marie monday 
night through tuesday morning. a period of southerly gales up to 
35 knots is looking more likely during this time, with gusts up to
40 knots possible over far northern lake michigan.

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


lmz080-669-671-673-675-777-779-870-872-874-876-878-071630-
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-
233 am cst sun dec 7 2025

sheboygan wi to pentwater mi south...

.today...north winds 10 to 20 kt increasing to 15 to 25 kt.
chance of snow. waves 2 to 4 ft building to 5 to 8 ft
occasionally to 10 ft. 
.tonight...northeast winds 10 to 20 kt becoming east 10 to 15 kt.
chance of snow. 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. waves 2 to 4 ft building to 4 to
7 ft occasionally to 9 ft. 
.monday night...south gales to 35 kt becoming southwest gales to
40 kt. chance of snow in the evening, then snow likely overnight.
waves 8 to 12 ft occasionally to 16 ft building to 12 to 16 ft
occasionally to 21 ft. 
.tuesday...southwest gales to 40 kt diminishing to 30 kt in the
afternoon. chance of snow in the morning, then chance of rain in
the afternoon. waves 12 to 16 ft occasionally to 21 ft subsiding
to 8 to 12 ft occasionally to 16 ft. 
.tuesday night...southwest gales to 35 kt increasing to gales to
40 kt. rain. waves 8 to 11 ft occasionally to 14 ft building to
10 to 14 ft occasionally to 18 ft. 
.wednesday...northwest gales to 40 kt. chance of rain and snow.
waves 12 to 16 ft occasionally to 21 ft. 
.thursday...northwest winds 10 to 20 kt. chance of snow. waves
4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 070833
glflm 
expires:202512071630;;150799

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
233 am 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...

breezy northerly winds are expected today between weakening low
pressure passing by well to the south and high pressure around 
30.5 inches building in from the west. winds will become lighter
tonight under the high.  

winds will then shift to the south by monday afternoon, as the
high heads eastward ahead of an approaching low. the low around 
29.7 inches will track from minnesota to sault ste. marie monday 
night through tuesday morning. a period of southerly gales up to 
35 knots is looking more likely during this time, with gusts up to
40 knots possible over far northern lake michigan.

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


lmz261-362-364-366-563-565-567-868-071630-
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-
233 am cst sun dec 7 2025

sheboygan wi to pentwater mi north...

.today...northwest winds 10 to 20 kt becoming north 15 to 25 kt.
slight chance of snow this morning. waves 2 to 4 ft building to
4 to 6 ft occasionally to 8 ft. 
.tonight...north winds 10 to 20 kt diminishing to 5 to 10 kt
after midnight, then backing to west late. chance of snow
overnight. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.monday...southwest winds 10 to 15 kt becoming south to 30 kt.
chance of snow in the afternoon. waves 1 to 2 ft building to 4 to
7 ft occasionally to 9 ft. 
.monday night...southwest gales to 45 kt. chance of snow in the
evening, then snow overnight. waves 12 to 16 ft occasionally to
21 ft. 
.tuesday...west gales to 35 kt diminishing to 30 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. snow and rain. waves 6 to 9 ft occasionally to 12 ft
building to 8 to 12 ft occasionally to 16 ft. 
.wednesday...north winds to 30 kt. chance of snow and rain
likely. waves 8 to 11 ft occasionally to 14 ft subsiding to 7 to
10 ft occasionally to 13 ft. 
.thursday...northwest winds 10 to 20 kt. chance of snow. waves
2 to 4 ft.  

$$

fzus63 kmqt 070901
glfls 
expires:202512072100;;151787

open lake forecast for lake superior
national weather service marquette mi
400 am 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 30.4 inch high centered over manitoba early this morning extends 
ridging southward into the northern plains this morning, becoming 
centered over minnesota by this afternoon. the high slides over 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.



lsz265-072100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am est sun dec 7 2025

.early this morning...northwest winds 20 to 30 knots. a chance of
snow showers. waves 2 to 4 feet building to 3 to 5 feet
occasionally to 7 feet. 
.today...northwest winds 20 to 30 knots. a chance of snow
showers. freezing spray in the afternoon. waves building to 3 to
6 feet occasionally to 8 feet. 
.tonight...northwest winds 15 to 25 knots becoming west 10 to
20 knots by midnight. a slight chance of snow showers in the
evening. waves subsiding to calm to 2 feet. 
.monday...southwest winds 10 to 20 knots increasing to 20 to
30 knots. a slight chance of snow showers in the afternoon. waves
building to 2 to 4 feet. 
.monday night...southwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. snow showers. waves 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. snow showers likely. waves
building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...north gales to 35 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...northwest winds 15 to 25 knots increasing to 20 to
30 knots. 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 070901
glfls 
expires:202512072100;;151788

open lake forecast for lake superior
national weather service marquette mi
400 am 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 30.4 inch high centered over manitoba early this morning extends 
ridging southward into the northern plains this morning, becoming 
centered over minnesota by this afternoon. the high slides over 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.



lsz266-072100-
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 am est sun dec 7 2025

.early this morning...northwest winds 20 to 30 knots. freezing
spray. a chance of snow showers. waves 3 to 6 feet occasionally
to 8 feet. 
.today...northwest winds 20 to 30 knots. freezing spray. a chance
of snow showers. waves building to 5 to 8 feet occasionally to
10 feet. 
.tonight...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by midnight, then backing west late. a slight chance of
snow showers. waves subsiding to 2 to 4 feet. 
.monday...southwest winds 10 to 20 knots increasing to 20 to
30 knots. a slight chance of snow showers. waves subsiding to
1 to 3 feet, then building to 4 to 7 feet occasionally to 9 feet.
.monday night...southwest winds 20 to 30 knots. a chance of snow
showers in the evening, then snow showers after midnight. waves
building to 7 to 10 feet occasionally to 13 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. a chance of snow showers. 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. waves
building to 4 to 7 feet occasionally to 9 feet. 
.wednesday...north gales to 35 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...northwest winds 15 to 25 knots veering north. a
chance of snow showers. waves building to 4 to 7 feet
occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 070901
glfls 
expires:202512072100;;151789

open lake forecast for lake superior
national weather service marquette mi
400 am 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 30.4 inch high centered over manitoba early this morning extends 
ridging southward into the northern plains this morning, becoming 
centered over minnesota by this afternoon. the high slides over 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.



lsz267-072100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am est sun dec 7 2025

.early this morning...northwest winds 15 to 25 knots. snow
showers. waves 3 to 6 feet occasionally to 8 feet. 
.today...northwest winds 15 to 25 knots increasing to 30 knots
with a few gale force gusts to 35 knots possible. freezing spray.
snow showers likely in the morning. a chance of snow showers in
the afternoon. waves building to 5 to 8 feet occasionally to
10 feet. 
.tonight...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 2 to 4 feet. 
.monday...west winds 15 to 25 knots becoming southwest 20 to
30 knots. a slight 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 6 to 9 feet occasionally to 11 feet, then
subsiding to 4 to 7 feet occasionally to 9 feet. 
.tuesday...southwest winds 15 to 25 knots veering west 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 becoming east
15 to 25 knots after midnight. snow showers likely. waves
subsiding to 1 to 3 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.wednesday...north winds 20 to 30 knots diminishing to 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.

$$

fzus63 kmqt 070901
glfls 
expires:202512072100;;151784

open lake forecast for lake superior
national weather service marquette mi
400 am 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 30.4 inch high centered over manitoba early this morning extends 
ridging southward into the northern plains this morning, becoming 
centered over minnesota by this afternoon. the high slides over 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.



lsz162-072100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am est sun dec 7 2025 /300 am cst sun dec 7 2025/

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 070901
glfls 
expires:202512072100;;151785

open lake forecast for lake superior
national weather service marquette mi
400 am 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 30.4 inch high centered over manitoba early this morning extends 
ridging southward into the northern plains this morning, becoming 
centered over minnesota by this afternoon. the high slides over 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.



lsz263-072100-
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 am est sun dec 7 2025

.early this morning...northwest winds 10 to 20 knots. a slight
chance of snow showers. waves 2 to 4 feet. 
.today...northwest winds 15 to 25 knots diminishing to 10 to
20 knots. a slight chance of snow showers in the morning. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
1 to 3 feet. 
.tonight...northwest winds 5 to 15 knots backing southwest late.
a slight chance of snow showers after midnight. waves subsiding
to calm to 2 feet. 
.monday...southwest winds 10 to 20 knots increasing to 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. 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 20 to 30 knots becoming northeast
gales to 35 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 gales to 35 knots diminishing to 15 to
25 knots. freezing spray. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.thursday...north winds 10 to 20 knots increasing to 20 to
30 knots. a chance of snow showers. 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 070901
glfls 
expires:202512072100;;151786

open lake forecast for lake superior
national weather service marquette mi
400 am 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 30.4 inch high centered over manitoba early this morning extends 
ridging southward into the northern plains this morning, becoming 
centered over minnesota by this afternoon. the high slides over 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.



lsz264-072100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am est sun dec 7 2025

.early this morning...northwest winds 15 to 25 knots. a slight
chance of snow showers. waves 3 to 5 feet occasionally to 7 feet.
.today...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. freezing spray in the morning. a
slight chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots by midnight, then backing west late. a slight chance of
snow showers after midnight. waves subsiding to calm to 2 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. 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 15 to 25 knots increasing to
gales to 35 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 gales to 35 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 20 to
30 knots. a chance of snow showers. waves building to 3 to 6 feet
occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

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