fzus63 kdtx 270846
glflh 
expires:202512271700;;302367

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 am est sat dec 27 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 weak ridge of high pressure takes residence through
early saturday. low pressure, deepening to 28.90 inches, then
moves into the region sunday night, bringing west to northwest
gales on monday as arctic air filters back into the region. a
cold northwest flow pattern will dominate much of next week.


lhz361-362-271700-
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-
346 am est sat dec 27 2025

...gale watch in effect from monday morning through tuesday
morning...

.today...northeast winds 5 to 10 knots becoming southeast 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet
building to 2 to 4 feet late in the afternoon. 
.tonight...southeast winds 15 to 20 knots. waves 3 to 5 feet
building to 5 to 7 feet early in the morning. waves occasionally
around 10 feet. 
.sunday...southeast winds 15 to 20 knots. a chance of rain in the
morning...then rain in the afternoon. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.sunday night...east winds 15 to 20 knots increasing to 30 knots
with gusts to 35 knot gales. rain. waves 4 to 6 feet building to
6 to 9 feet after midnight. waves occasionally around 12 feet. 
.monday...southwest at 35 knot gales with gusts to 40 knot gales
becoming northwest at 40 knot gales with isolated storm force 
gusts to 50 knots late in the evening. snow. snow likely late in 
the afternoon. waves 12 to 16 feet building to 18 to 23 feet late 
in the afternoon. waves occasionally around 28 feet. a gale 
warning may be needed. 
.tuesday...northwest at 35 knot gales with gusts to 45 knot gales
becoming west 20 to 25 knots with gusts to around 30 knots. a
chance of snow . waves 14 to 18 feet subsiding to 8 to 12 feet .
waves occasionally around 23 feet. 
.wednesday...west winds 20 to 25 knots becoming northwest to
30 knots . a chance of snow. waves 10 to 14 feet. waves
occasionally around 18 feet. 


$$

fzus63 kdtx 270846
glflh 
expires:202512271700;;302368

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 am est sat dec 27 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 weak ridge of high pressure takes residence through
early saturday. low pressure, deepening to 28.90 inches, then
moves into the region sunday night, bringing west to northwest
gales on monday as arctic air filters back into the region. a
cold northwest flow pattern will dominate much of next week.


lhz363-462-271700-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
346 am est sat dec 27 2025

...gale watch in effect from late sunday night through tuesday
morning...

.today...northeast winds 5 to 10 knots veering to the east in the
late morning and early afternoon...then becoming southeast 10 to
15 knots late in the afternoon. waves 1 to 3 feet. 
.tonight...southeast winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. waves 2 to 4 feet
building to 4 to 6 feet in the late evening and overnight. waves
occasionally around 8 feet. 
.sunday...southeast winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. a chance of rain in the
morning...then rain in the afternoon. waves 4 to 6 feet. 
.sunday night...southeast winds 15 to 20 knots becoming south to
30 knots with gusts to 40 knot gales after midnight. rain in the
evening...then rain with snow likely after midnight. waves 3 to
5 feet building to 6 to 9 feet after midnight. waves occasionally
around 12 feet. 
.monday...west at 40 knot gales becoming northwest at 45 knot
gales late in the afternoon. isolated storm force gusts to 50 
knots. snow likely. a chance of snow late in the evening. waves 12
to 16 feet building to 18 to 23 feet late in the afternoon. waves
occasionally around 28 feet. a gale warning may be needed. 
.tuesday...northwest at 35 knot gales with gusts to 45 knot gales
becoming west 20 to 25 knots with gusts to around 30 knots. a
chance of snow . waves 14 to 18 feet subsiding to 8 to 12 feet .
waves occasionally around 23 feet. 
.wednesday...west winds 20 to 25 knots becoming northwest to
30 knots . gusts to 35 knot gales. a chance of snow. waves 8 to
12 feet. waves occasionally around 15 feet. 


$$

fzus63 kmkx 270851
glflm 
expires:202512271630;;302498

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
251 am cst sat dec 27 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...

high pressure around 30.0 inches will slowly exit southern lake
michigan to the east today, with modest southeast winds returning
by midday as low pressure develops over the central plains and
slowly moves northeastward into sunday. low pressure deepens to 
29.2 inches sunday evening as it tracks across southern lake 
michigan, then deepens to 28.8 inches over northern lake huron 
monday morning. the strong low will then reach far southern quebec
by late monday. northwesterly gales will develop late sunday 
night across all open waters. confidence in storm force gusts has 
increased, and a storm watch has been issued for all open waters 
late sunday night through monday night. much colder air will also
bring moderate freezing spray throughout this time frame. winds 
will diminish slowly and shift to become westerly on tuesday as 
low pressure exits into northern quebec. 


lmz261-362-364-366-563-565-567-868-271630-
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-
251 am cst sat dec 27 2025

sheboygan wi to pentwater mi north...

...storm watch in effect from sunday evening through late monday
night...

.today...south winds 10 to 15 kt becoming southeast 15 to 25 kt.
waves 1 to 2 ft building to 3 to 5 ft. 
.tonight...southeast winds 15 to 25 kt diminishing to 10 to
20 kt. slight chance of light freezing rain in the evening, then
chance of rain and light freezing rain overnight. waves 4 to 7 ft
occasionally to 9 ft. 
.sunday...southeast winds 10 to 20 kt becoming northeast. rain
likely with a chance of light freezing rain in the morning, then
rain in the afternoon. waves 4 to 6 ft occasionally to 8 ft
subsiding to 3 to 5 ft. 
.sunday night...northeast gales to 35 kt becoming northwest gales
to 45 kt overnight. rain and freezing rain in the evening, then
snow and rain overnight. waves 6 to 9 ft occasionally to 12 ft
building to 12 to 16 ft occasionally to 21 ft. 
.monday...northwest storm force winds to 50 kt. freezing spray.
snow in the morning, then snow likely in the afternoon. waves
15 to 20 ft occasionally to 26 ft. 
.monday night...northwest storm force winds to 55 kt diminishing
to storm force winds to 50 kt. freezing spray. chance of snow.
waves 14 to 18 ft occasionally to 23 ft subsiding to 12 to 16 ft
occasionally to 21 ft. 
.tuesday...northwest gales to 35 kt becoming west to 30 kt.
freezing spray. chance of snow. waves 8 to 11 ft occasionally to
14 ft subsiding to 4 to 7 ft occasionally to 9 ft. 
.wednesday...northwest winds to 30 kt increasing to gales to
35 kt. freezing spray. chance of snow. waves 6 to 9 ft
occasionally to 12 ft.  

$$

fzus63 kmkx 270851
glflm 
expires:202512271630;;302499

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
251 am cst sat dec 27 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...

high pressure around 30.0 inches will slowly exit southern lake
michigan to the east today, with modest southeast winds returning
by midday as low pressure develops over the central plains and
slowly moves northeastward into sunday. low pressure deepens to 
29.2 inches sunday evening as it tracks across southern lake 
michigan, then deepens to 28.8 inches over northern lake huron 
monday morning. the strong low will then reach far southern quebec
by late monday. northwesterly gales will develop late sunday 
night across all open waters. confidence in storm force gusts has 
increased, and a storm watch has been issued for all open waters 
late sunday night through monday night. much colder air will also
bring moderate freezing spray throughout this time frame. winds 
will diminish slowly and shift to become westerly on tuesday as 
low pressure exits into northern quebec. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-271630-
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-
251 am cst sat dec 27 2025

sheboygan wi to pentwater mi south...

...storm watch in effect from sunday evening through late monday
night...

.today...southeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.tonight...southeast winds 15 to 25 kt diminishing to 10 to
20 kt. chance of rain in the evening, then rain likely overnight.
patchy fog overnight. waves 4 to 7 ft occasionally to 9 ft. 
.sunday...southeast winds 10 to 20 kt becoming south 15 to 25 kt.
rain. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.sunday night...west gales to 45 kt increasing to storm force
winds to 50 kt. rain and snow in the evening, then snow
overnight. waves 8 to 12 ft occasionally to 16 ft building to
15 to 20 ft occasionally to 26 ft. 
.monday...northwest storm force winds to 50 kt. freezing spray in
the morning. snow in the morning, then chance of snow in the
afternoon. waves 18 to 23 ft occasionally to 30 ft. 
.monday night...northwest gales to 45 kt diminishing to gales to
40 kt. freezing spray. chance of snow. waves 18 to 23 ft
occasionally to 30 ft subsiding to 14 to 18 ft occasionally to
23 ft. 
.tuesday...northwest winds to 30 kt becoming west. freezing
spray. waves 10 to 14 ft occasionally to 18 ft subsiding to 7 to
10 ft occasionally to 13 ft. 
.wednesday...northwest winds to 30 kt increasing to gales to
35 kt. chance of snow. waves 8 to 12 ft occasionally to 16 ft.  

$$

fzus63 kmqt 270944
glfls 
expires:202512271745;;306459

open lake forecast for lake superior
national weather service marquette mi
444 am est sat dec 27 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 30.2 inch ridge extends into the eastern lakes today while a 29.7 
inch low develops over the plains. this low deepens to 28.9 inches 
as it lifts to near the straits of mackinac by monday morning. 
meanwhile, a strong high pressure of at least 30.6 inches will 
spread across the great plains as the low lifts into quebec. a 29.8 
inch trough dives southeast into the upper great lakes late
tuesday.


lsz162-271745-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
444 am est sat dec 27 2025 /344 am cst sat dec 27 2025/

...gale watch in effect from sunday evening through monday
evening...

.early this morning...south winds 5 to 15 knots. waves calm to
2 feet. 
.today...southeast winds 5 to 15 knots increasing to 10 to
20 knots by late morning, then veering south by mid afternoon. a
chance of rain showers. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots. a slight chance of rain
showers. waves calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots becoming north 10 to
20 knots by late morning, then increasing to 20 to 30 knots by
mid afternoon. a chance of rain showers, possibly mixed with snow
in the morning, then snow, possibly mixed with rain in the
afternoon. waves building to 3 to 5 feet occasionally to 7 feet. 
.sunday night...north gales to 45 knots. heavy freezing spray.
snow. waves building to 10 to 14 feet occasionally to 18 feet. 
.monday...north gales to 45 knots becoming northwest gales to
40 knots in the afternoon. heavy freezing spray. a chance of
snow. waves subsiding to 5 to 8 feet occasionally to 10 feet. 
.monday night...northwest gales to 35 knots diminishing to 15 to
25 knots after midnight. waves subsiding to 1 to 3 feet. 
.tuesday...west winds 15 to 25 knots becoming northwest 20 to
30 knots. snow showers likely. waves building to 2 to 4 feet. 
.wednesday...northwest winds 20 to 30 knots. heavy freezing
spray. waves building to 3 to 5 feet occasionally to 7 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 270944
glfls 
expires:202512271745;;306460

open lake forecast for lake superior
national weather service marquette mi
444 am est sat dec 27 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 30.2 inch ridge extends into the eastern lakes today while a 29.7 
inch low develops over the plains. this low deepens to 28.9 inches 
as it lifts to near the straits of mackinac by monday morning. 
meanwhile, a strong high pressure of at least 30.6 inches will 
spread across the great plains as the low lifts into quebec. a 29.8 
inch trough dives southeast into the upper great lakes late
tuesday.


lsz263-271745-
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-
444 am est sat dec 27 2025

...storm watch in effect from sunday evening through monday
evening...

.early this morning...south winds 5 to 15 knots. flurries. waves
calm to 2 feet. 
.today...southeast winds 5 to 15 knots becoming south 10 to
20 knots. flurries in the morning. a chance of rain showers.
waves building to 1 to 3 feet. 
.tonight...south winds 10 to 20 knots diminishing to 5 to
15 knots by midnight. a chance of rain showers. waves building to
2 to 4 feet, then subsiding to calm to 2 feet. 
.sunday...northeast winds 5 to 15 knots becoming north 10 to
20 knots by late morning, then increasing to 30 knots with a few
gale force gusts to 35 knots possible by mid afternoon. a chance
of rain showers, possibly mixed with snow in the morning, then
snow, possibly mixed with rain in the afternoon. waves building
to 3 to 6 feet occasionally to 8 feet. 
.sunday night...north gales to 45 knots increasing to storm force
winds to 55 knots after midnight. heavy freezing spray. a slight
chance of rain in the evening. snow. waves building to 17 to
22 feet occasionally to 28 feet. 
.monday...north storm force winds to 55 knots diminishing to
gales to 45 knots in the afternoon. heavy freezing spray. a
chance of snow. waves subsiding to 10 to 14 feet occasionally to
18 feet. 
.monday night...northwest gales to 40 knots diminishing to 20 to
30 knots after midnight. heavy freezing spray. waves subsiding to
3 to 6 feet occasionally to 8 feet. 
.tuesday...west winds 15 to 25 knots becoming northwest gales to
35 knots. a chance of snow showers. freezing spray. waves
subsiding to 3 to 5 feet occasionally to 7 feet, then building to
6 to 9 feet occasionally to 11 feet. 
.wednesday...northwest gales to 35 knots. heavy freezing spray.
waves subsiding to 5 to 8 feet occasionally to 10 feet, then
building to 6 to 9 feet occasionally to 11 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 270944
glfls 
expires:202512271745;;306461

open lake forecast for lake superior
national weather service marquette mi
444 am est sat dec 27 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 30.2 inch ridge extends into the eastern lakes today while a 29.7 
inch low develops over the plains. this low deepens to 28.9 inches 
as it lifts to near the straits of mackinac by monday morning. 
meanwhile, a strong high pressure of at least 30.6 inches will 
spread across the great plains as the low lifts into quebec. a 29.8 
inch trough dives southeast into the upper great lakes late
tuesday.


lsz264-271745-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
444 am est sat dec 27 2025

...storm watch in effect from sunday evening through monday
evening...

.early this morning...south winds 5 to 15 knots. flurries. waves
calm to 2 feet. 
.today...south winds 5 to 15 knots increasing to 15 to 25 knots.
flurries in the morning. a chance of rain showers in the
afternoon. waves building to 4 to 7 feet occasionally to 9 feet. 
.tonight...south winds 15 to 25 knots diminishing to 10 to
20 knots late. a chance of rain showers. waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.sunday...east winds 5 to 15 knots becoming northeast 10 to
20 knots by late morning, then increasing to 20 to 30 knots by
mid afternoon. a chance of rain showers, possibly mixed with snow
in the morning, then rain and snow in the afternoon. waves
subsiding to 1 to 3 feet, then building to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...north gales to 45 knots increasing to storm force
winds to 60 knots after midnight. heavy freezing spray. snow.
waves building to 17 to 22 feet occasionally to 28 feet. 
.monday...north storm force winds to 60 knots diminishing to
gales to 45 knots in the afternoon. heavy freezing spray. a
chance of snow. waves building to 20 to 25 feet occasionally to
31 feet, then subsiding to 15 to 20 feet occasionally to 25 feet.
.monday night...north gales to 45 knots becoming northwest gales
to 40 knots after midnight. heavy freezing spray. waves subsiding
to 7 to 10 feet occasionally to 13 feet. 
.tuesday...northwest winds 20 to 30 knots increasing to gales to
35 knots. heavy freezing spray. a chance of snow showers. waves
subsiding to 3 to 6 feet occasionally to 8 feet, then building to
8 to 11 feet occasionally to 14 feet. 
.wednesday...northwest gales to 40 knots. heavy freezing spray.
waves subsiding to 7 to 10 feet occasionally to 13 feet, then
building to 9 to 12 feet occasionally to 15 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 270944
glfls 
expires:202512271745;;306462

open lake forecast for lake superior
national weather service marquette mi
444 am est sat dec 27 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 30.2 inch ridge extends into the eastern lakes today while a 29.7 
inch low develops over the plains. this low deepens to 28.9 inches 
as it lifts to near the straits of mackinac by monday morning. 
meanwhile, a strong high pressure of at least 30.6 inches will 
spread across the great plains as the low lifts into quebec. a 29.8 
inch trough dives southeast into the upper great lakes late
tuesday.


lsz265-271745-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
444 am est sat dec 27 2025

...storm watch in effect from sunday evening through late monday
night...

.early this morning...south winds 5 to 15 knots. flurries. waves
calm to 2 feet. 
.today...south winds 10 to 20 knots increasing to 15 to 25 knots.
flurries in the morning. a slight chance of rain showers in the
afternoon. waves building to 3 to 6 feet occasionally to 8 feet. 
.tonight...south winds 20 to 30 knots diminishing to 10 to
20 knots. a chance of rain showers. waves subsiding to 1 to
3 feet. 
.sunday...southeast winds 5 to 15 knots becoming east 10 to
20 knots by late morning, then becoming northeast 15 to 25 knots
by mid afternoon. a chance of rain showers in the morning, then
rain, possibly mixed with snow and sleet in the afternoon. waves
subsiding to calm to 2 feet, then building to 2 to 4 feet. 
.sunday night...northeast gales to 45 knots becoming north storm
force winds to 60 knots after midnight. a slight chance of rain
in the evening. snow. freezing spray after midnight. waves
building to 20 to 25 feet occasionally to 31 feet. 
.monday...north storm force winds to 60 knots. heavy freezing
spray. snow in the morning. snow likely in the afternoon. waves
building to 22 to 27 feet occasionally to 34 feet, then subsiding
to 17 to 22 feet occasionally to 28 feet. 
.monday night...northwest gales to 45 knots. heavy freezing
spray. a chance of snow showers. waves subsiding to 9 to 12 feet
occasionally to 15 feet. 
.tuesday...west gales to 35 knots becoming northwest gales to
40 knots. freezing spray. a chance of snow showers. snow showers
likely. waves subsiding to 3 to 6 feet occasionally to 8 feet,
then building to 8 to 11 feet occasionally to 14 feet. 
.wednesday...northwest gales to 40 knots. heavy freezing spray.
snow showers likely. a chance of snow showers. waves building to
8 to 12 feet occasionally to 15 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 270944
glfls 
expires:202512271745;;306463

open lake forecast for lake superior
national weather service marquette mi
444 am est sat dec 27 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 30.2 inch ridge extends into the eastern lakes today while a 29.7 
inch low develops over the plains. this low deepens to 28.9 inches 
as it lifts to near the straits of mackinac by monday morning. 
meanwhile, a strong high pressure of at least 30.6 inches will 
spread across the great plains as the low lifts into quebec. a 29.8 
inch trough dives southeast into the upper great lakes late
tuesday.


lsz266-271745-
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-
444 am est sat dec 27 2025

...storm watch in effect from sunday evening through late monday
night...

.early this morning...southwest winds 5 to 15 knots. flurries.
waves calm to 2 feet. 
.today...south winds 10 to 20 knots increasing to 20 to 30 knots.
flurries in the morning. a chance of rain showers in the
afternoon. waves building to 4 to 7 feet occasionally to 9 feet. 
.tonight...south winds 20 to 30 knots diminishing to 15 to
25 knots late. a chance of rain showers. waves building to 5 to
8 feet occasionally to 10 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.sunday...southeast winds 10 to 20 knots backing east by late
morning, then increasing to 15 to 25 knots by mid afternoon. a
chance of rain showers in the morning, then rain, possibly mixed
with snow in the afternoon. waves subsiding to 2 to 4 feet, then
building to 3 to 5 feet occasionally to 7 feet. 
.sunday night...northeast gales to 45 knots becoming north storm
force winds to 60 knots after midnight. a slight chance of rain
in the evening. snow. freezing spray after midnight. waves
building to 20 to 25 feet occasionally to 31 feet. 
.monday...north storm force winds to 60 knots. heavy freezing
spray. snow. waves building to 25 to 30 feet occasionally to
38 feet, then subsiding to 22 to 27 feet occasionally to 34 feet.
.monday night...north storm force winds to 55 knots becoming
northwest gales to 40 knots after midnight. heavy freezing spray.
a chance of snow showers. waves subsiding to 12 to 17 feet
occasionally to 21 feet. 
.tuesday...northwest winds 20 to 30 knots increasing to gales to
40 knots. freezing spray. a chance of snow showers. snow showers.
waves subsiding to 6 to 9 feet occasionally to 11 feet, then
building to 10 to 14 feet occasionally to 18 feet. 
.wednesday...northwest gales to 40 knots. heavy freezing spray.
snow showers. waves building to 11 to 15 feet occasionally to
19 feet, then subsiding to 10 to 14 feet occasionally to 18 feet.

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 270944
glfls 
expires:202512271745;;306464

open lake forecast for lake superior
national weather service marquette mi
444 am est sat dec 27 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 30.2 inch ridge extends into the eastern lakes today while a 29.7 
inch low develops over the plains. this low deepens to 28.9 inches 
as it lifts to near the straits of mackinac by monday morning. 
meanwhile, a strong high pressure of at least 30.6 inches will 
spread across the great plains as the low lifts into quebec. a 29.8 
inch trough dives southeast into the upper great lakes late
tuesday.


lsz267-271745-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
444 am est sat dec 27 2025

...storm watch in effect from sunday evening through late monday
night...

.early this morning...south winds 10 to 20 knots. flurries. waves
calm to 2 feet. 
.today...south winds 10 to 20 knots increasing to 15 to 25 knots
by late morning, then becoming southeast 20 to 30 knots by mid
afternoon. flurries in the morning. a slight chance of rain and
snow showers in the afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.tonight...south winds 20 to 30 knots becoming southeast 15 to
25 knots late. a chance of rain showers. waves building to 3 to
6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.sunday...southeast winds 15 to 25 knots diminishing to 10 to
20 knots by late morning, then becoming east 15 to 25 knots by
mid afternoon. a chance of rain showers in the morning, then
rain, possibly mixed with snow in the afternoon. waves subsiding
to 1 to 3 feet, then building to 2 to 4 feet. 
.sunday night...northeast gales to 45 knots. rain, possibly mixed
with sleet in the evening. snow. freezing spray after midnight.
waves building to 15 to 20 feet occasionally to 25 feet. 
.monday...north storm force winds to 55 knots. freezing spray.
snow. waves building to 17 to 22 feet occasionally to 28 feet. 
.monday night...north storm force winds to 50 knots diminishing
to gales to 40 knots after midnight. heavy freezing spray. snow
showers likely in the evening. a chance of snow showers after
midnight. waves subsiding to 10 to 14 feet occasionally to
18 feet. 
.tuesday...northwest winds 20 to 30 knots. freezing spray. snow
showers. waves subsiding to 6 to 9 feet occasionally to 11 feet,
then building to 9 to 12 feet occasionally to 15 feet. 
.wednesday...northwest gales to 35 knots. heavy freezing spray.
snow showers. waves building to 11 to 15 feet occasionally to
19 feet. 

note, wave height forecasts are for ice free areas.

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