fzus63 kdtx 052045
glflh 
expires:202512060445;;066157

open lake forecast for lake huron
national weather service detroit/pontiac mi
345 pm est fri dec 5 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...a cold front will track through the western great
lakes tonight and through the central great lakes tomorrow,
washing out in the process. short lived high pressure returns
tomorrow evening. another low pressure system, 29.90 inches,
tracks across the southern great lakes sunday morning bringing
light snow to the area. brief strong northwest winds will follow
for late sunday over lake huron.


lhz363-462-060445-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
345 pm est fri dec 5 2025

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


$$

fzus63 kdtx 052045
glflh 
expires:202512060445;;066156

open lake forecast for lake huron
national weather service detroit/pontiac mi
345 pm est fri dec 5 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...a cold front will track through the western great
lakes tonight and through the central great lakes tomorrow,
washing out in the process. short lived high pressure returns
tomorrow evening. another low pressure system, 29.90 inches,
tracks across the southern great lakes sunday morning bringing
light snow to the area. brief strong northwest winds will follow
for late sunday over lake huron.


lhz361-362-060445-
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-
345 pm est fri dec 5 2025

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


$$

fzus63 kmkx 052109
glflm 
expires:202512060415;;067677

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
309 pm cst fri dec 5 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...

a low pressure trough of 29.7 inches will cross lake michigan this
evening and winds will veer to the west and become breezy saturday
morning as high pressure of 30.0 inches builds in from the west. 
breezy northerly winds are then expected sunday as low pressure 
around 30.0 inches crosses il and the strengthening high pressure 
of 30.5 inches reaches minnesota. gusts are expected to remain 
below gales. 

monday night will feature gusty southwest winds with a few gale
force gusts possible as low pressure of 29.8 inches crosses lake
superior. a low around 29.2 inches crossing central wi tuesday
night will bring another round of gusty winds and this system may
also bring a few gale force gusts. 


lmz261-362-364-366-563-565-567-868-060415-
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-
309 pm cst fri dec 5 2025

sheboygan wi to pentwater mi north...

.tonight...southwest winds to 30 kt becoming northwest 15 to
25 kt. snow and slight chance of light freezing drizzle this
evening, then chance of snow overnight. waves 5 to 8 ft
occasionally to 10 ft subsiding to 4 to 7 ft occasionally to
9 ft. 
.saturday...northwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.saturday night...northwest winds 10 to 15 kt becoming north.
chance of snow overnight. waves 1 to 3 ft subsiding to 1 to 2 ft.
.sunday...north winds 15 to 25 kt. chance of snow in the morning.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. 
.sunday night...north winds 15 to 25 kt diminishing to 10 to
15 kt overnight. waves 4 to 6 ft occasionally to 8 ft subsiding
to 2 to 4 ft. 
.monday...south winds 10 to 20 kt becoming southwest to 30 kt in
the afternoon. chance of snow in the afternoon. waves 1 to 3 ft
building to 3 to 5 ft. 
.monday night...southwest winds to 30 kt. snow. waves 6 to 9 ft
occasionally to 12 ft building to 8 to 11 ft occasionally to
14 ft. 
.tuesday...west winds to 30 kt diminishing to 15 to 25 kt. chance
of snow. waves 8 to 11 ft occasionally to 14 ft subsiding to 5 to
8 ft occasionally to 10 ft. 
.wednesday...northwest winds to 30 kt becoming north. snow
likely. waves 8 to 12 ft occasionally to 16 ft subsiding to 7 to
10 ft occasionally to 13 ft.  

$$

fzus63 kmkx 052109
glflm 
expires:202512060415;;067678

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
309 pm cst fri dec 5 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...

a low pressure trough of 29.7 inches will cross lake michigan this
evening and winds will veer to the west and become breezy saturday
morning as high pressure of 30.0 inches builds in from the west. 
breezy northerly winds are then expected sunday as low pressure 
around 30.0 inches crosses il and the strengthening high pressure 
of 30.5 inches reaches minnesota. gusts are expected to remain 
below gales. 

monday night will feature gusty southwest winds with a few gale
force gusts possible as low pressure of 29.8 inches crosses lake
superior. a low around 29.2 inches crossing central wi tuesday
night will bring another round of gusty winds and this system may
also bring a few gale force gusts. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-060415-
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-
309 pm cst fri dec 5 2025

sheboygan wi to pentwater mi south...

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

$$

fzus63 kmqt 052101
glfls 
expires:202512060900;;066768

open lake forecast for lake superior
national weather service marquette mi
400 pm est fri dec 5 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 29.6 inch trough passes over the lake this evening and tonight, 
extending from a deepening 29.4 inch low over hudson bay. as the 
trough shifts east saturday, a 30.4 inch high builds over the 
northern plains and canadian prairies, shifting east towards the 
great lakes late this weekend and arriving monday. the next clipper 
low arrives over lake superior at around 29.7 inches monday night 
before leaving tuesday afternoon. a stronger clipper low at around 
29.3 inches digs through the northern plains tuesday before moving 
through the great lakes region on wednesday.



lsz162-060900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm est fri dec 5 2025 /300 pm cst fri dec 5 2025/

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 052101
glfls 
expires:202512060900;;066769

open lake forecast for lake superior
national weather service marquette mi
400 pm est fri dec 5 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 29.6 inch trough passes over the lake this evening and tonight, 
extending from a deepening 29.4 inch low over hudson bay. as the 
trough shifts east saturday, a 30.4 inch high builds over the 
northern plains and canadian prairies, shifting east towards the 
great lakes late this weekend and arriving monday. the next clipper 
low arrives over lake superior at around 29.7 inches monday night 
before leaving tuesday afternoon. a stronger clipper low at around 
29.3 inches digs through the northern plains tuesday before moving 
through the great lakes region on wednesday.



lsz263-060900-
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 fri dec 5 2025

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 052101
glfls 
expires:202512060900;;066770

open lake forecast for lake superior
national weather service marquette mi
400 pm est fri dec 5 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 29.6 inch trough passes over the lake this evening and tonight, 
extending from a deepening 29.4 inch low over hudson bay. as the 
trough shifts east saturday, a 30.4 inch high builds over the 
northern plains and canadian prairies, shifting east towards the 
great lakes late this weekend and arriving monday. the next clipper 
low arrives over lake superior at around 29.7 inches monday night 
before leaving tuesday afternoon. a stronger clipper low at around 
29.3 inches digs through the northern plains tuesday before moving 
through the great lakes region on wednesday.



lsz264-060900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm est fri dec 5 2025

.late this afternoon...west winds 15 to 25 knots. a chance of
snow showers. waves 2 to 4 feet. 
.tonight...west winds 15 to 25 knots becoming northwest 20 to
30 knots by midnight. a chance of snow showers. freezing spray
after midnight. waves building to 5 to 8 feet occasionally to
10 feet. 
.saturday...northwest winds 20 to 30 knots diminishing to 10 to
20 knots. freezing spray in the morning. isolated snow showers in
the morning. waves subsiding to 1 to 3 feet. 
.saturday night...northwest winds 5 to 15 knots increasing to
10 to 20 knots by midnight. a slight chance of snow showers in
the evening. waves building to 3 to 5 feet occasionally to
7 feet. 
.sunday...northwest winds 15 to 25 knots. freezing spray in the
morning. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet. 
.sunday night...northwest winds 10 to 20 knots becoming west 5 to
15 knots after midnight. 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 5 feet
occasionally to 7 feet. 
.monday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. snow showers likely. waves
subsiding to 2 to 4 feet. 
.tuesday...northwest winds 10 to 20 knots becoming east 20 to
30 knots. a chance of snow showers. waves subsiding to 1 to
3 feet, then building to 5 to 8 feet occasionally to 10 feet. 
.wednesday...northeast gales to 35 knots becoming north 20 to
30 knots. freezing spray. a chance of snow showers. waves
building to 7 to 10 feet occasionally to 13 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 052101
glfls 
expires:202512060900;;066771

open lake forecast for lake superior
national weather service marquette mi
400 pm est fri dec 5 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 29.6 inch trough passes over the lake this evening and tonight, 
extending from a deepening 29.4 inch low over hudson bay. as the 
trough shifts east saturday, a 30.4 inch high builds over the 
northern plains and canadian prairies, shifting east towards the 
great lakes late this weekend and arriving monday. the next clipper 
low arrives over lake superior at around 29.7 inches monday night 
before leaving tuesday afternoon. a stronger clipper low at around 
29.3 inches digs through the northern plains tuesday before moving 
through the great lakes region on wednesday.



lsz265-060900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm est fri dec 5 2025

.late this afternoon...southwest winds 15 to 25 knots. a slight
chance of snow showers. waves 1 to 3 feet. 
.tonight...west winds 15 to 25 knots becoming northwest 20 to
30 knots by midnight, then increasing to 30 knots with a few gale
force gusts to 35 knots possible late. a chance of snow showers.
waves building to 4 to 7 feet occasionally to 9 feet. 
.saturday...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 15 to 25 knots.
isolated snow showers. waves subsiding to 1 to 3 feet. 
.saturday night...northwest winds 10 to 20 knots increasing to
15 to 25 knots late. a chance of snow showers. waves subsiding to
calm to 2 feet, then building to 1 to 3 feet. 
.sunday...northwest winds 20 to 30 knots. a chance of snow
showers. waves building to 3 to 5 feet occasionally to 7 feet. 
.sunday night...northwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.monday...southwest winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon. waves building to 1 to 3 feet. 
.monday night...southwest winds 15 to 25 knots. snow showers.
waves subsiding to calm to 2 feet. 
.tuesday...west winds 15 to 25 knots becoming east 20 to
30 knots. a chance of snow showers, then snow showers likely.
waves building to 3 to 6 feet occasionally to 8 feet. 
.wednesday...north gales to 35 knots. a chance of snow showers.
waves building to 7 to 10 feet occasionally to 13 feet, then
subsiding to 4 to 7 feet occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 052101
glfls 
expires:202512060900;;066772

open lake forecast for lake superior
national weather service marquette mi
400 pm est fri dec 5 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 29.6 inch trough passes over the lake this evening and tonight, 
extending from a deepening 29.4 inch low over hudson bay. as the 
trough shifts east saturday, a 30.4 inch high builds over the 
northern plains and canadian prairies, shifting east towards the 
great lakes late this weekend and arriving monday. the next clipper 
low arrives over lake superior at around 29.7 inches monday night 
before leaving tuesday afternoon. a stronger clipper low at around 
29.3 inches digs through the northern plains tuesday before moving 
through the great lakes region on wednesday.



lsz266-060900-
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 fri dec 5 2025

.late this afternoon...southwest winds 15 to 25 knots. a slight
chance of snow showers. waves 3 to 5 feet occasionally to 7 feet
subsiding to 2 to 4 feet. 
.tonight...west winds 15 to 25 knots becoming northwest 20 to
30 knots by midnight. scattered snow showers. waves building to
7 to 10 feet occasionally to 13 feet. 
.saturday...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 15 to 25 knots.
freezing spray in the morning. scattered snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet. 
.saturday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots by midnight, then increasing to 15 to 25 knots
late. snow showers likely. freezing spray after midnight. waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 
.sunday...northwest winds 20 to 30 knots. freezing spray. snow
showers. waves building to 4 to 7 feet occasionally to 9 feet. 
.sunday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.monday...southwest winds 10 to 20 knots increasing to 20 to
30 knots in the afternoon. a chance of snow showers. waves
subsiding to 1 to 3 feet, then 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 building to
4 to 7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.tuesday...west winds 15 to 25 knots becoming east 20 to
30 knots. a chance of snow showers. waves subsiding to 2 to
4 feet, then building to 4 to 7 feet occasionally to 9 feet. 
.wednesday...northeast gales to 35 knots backing north. a chance
of snow showers. freezing spray. waves building to 7 to 10 feet
occasionally to 13 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 052101
glfls 
expires:202512060900;;066773

open lake forecast for lake superior
national weather service marquette mi
400 pm est fri dec 5 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 29.6 inch trough passes over the lake this evening and tonight, 
extending from a deepening 29.4 inch low over hudson bay. as the 
trough shifts east saturday, a 30.4 inch high builds over the 
northern plains and canadian prairies, shifting east towards the 
great lakes late this weekend and arriving monday. the next clipper 
low arrives over lake superior at around 29.7 inches monday night 
before leaving tuesday afternoon. a stronger clipper low at around 
29.3 inches digs through the northern plains tuesday before moving 
through the great lakes region on wednesday.



lsz267-060900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm est fri dec 5 2025

.late this afternoon...southwest winds 15 to 25 knots. a slight
chance of snow showers. waves 3 to 5 feet occasionally to 7 feet
subsiding to 2 to 4 feet. 
.tonight...southwest winds 15 to 25 knots veering west by
midnight, then becoming northwest 20 to 30 knots late. scattered
snow showers. waves building to 7 to 10 feet occasionally to
13 feet. 
.saturday...northwest winds to 30 knots with a few gale force
gusts to 35 knots possible diminishing to 15 to 25 knots.
scattered snow showers. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 
.saturday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots by midnight, then increasing to 15 to 25 knots
late. snow showers. waves subsiding to 2 to 4 feet, then building
to 3 to 5 feet occasionally to 7 feet. 
.sunday...northwest winds 15 to 25 knots becoming north 20 to
30 knots in the afternoon. snow showers. waves building to 4 to
7 feet occasionally to 9 feet. 
.sunday night...north winds 15 to 25 knots becoming northwest
10 to 20 knots after midnight. a chance of snow showers. waves
subsiding to 2 to 4 feet. 
.monday...west winds 15 to 25 knots backing southwest 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 7 feet occasionally to 9 feet, then
subsiding to 3 to 5 feet occasionally to 7 feet. 
.tuesday...west winds 10 to 20 knots becoming east 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. 
.wednesday...northeast winds 20 to 30 knots backing north. snow
showers likely, then a chance of snow showers. waves building to
5 to 8 feet occasionally to 10 feet, then subsiding to 3 to
6 feet occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

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