fzus63 kdtx 091452
glflh 
expires:202601092300;;059482

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am est fri jan 9 2026

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, 29.30 inches, will travel from northern
lower michigan into quebec by this afternoon. this will maintain
elevated winds, including some brief sustained winds to gales,
for portions of lake huron. high pressure, 30.20 inches, to then
quickly build in over michigan tonight into saturday morning.


lhz361-092300-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
952 am est fri jan 9 2026

...gale warning in effect until 7 pm est this evening...

.rest of today...south winds 10 to 15 knots becoming northwest to
30 knots with gusts to 35 knot gales in the afternoon. a chance
of rain late in the morning...then rain likely in the afternoon.
waves 10 to 14 feet. waves occasionally around 18 feet. 
.tonight...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots late in the evening...then
becoming west 5 to 10 knots after midnight. waves 8 to 12 feet
subsiding to 1 to 3 feet. waves occasionally around 15 feet. 
.saturday...east winds 5 to 10 knots increasing to 15 to
20 knots. snow likely in the afternoon. waves 2 feet or less
building to 3 to 5 feet in the late morning and afternoon. 
.saturday night...northeast winds 15 to 20 knots becoming north
20 to 25 knots after midnight. snow in the evening...then a
chance of snow after midnight. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.sunday...north winds 20 to 25 knots becoming northwest 15 to
20 knots late in the morning...then backing to the west late in
the evening. waves 4 to 6 feet. 
.monday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots . waves 2 to 4 feet. waves occasionally around 8 feet. 
.tuesday...southwest winds 10 to 15 knots. a chance of rain and
snow...then a chance of snow by midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 091452
glflh 
expires:202601092300;;059483

open lake forecast for lake huron
national weather service detroit/pontiac mi
952 am est fri jan 9 2026

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, 29.30 inches, will travel from northern
lower michigan into quebec by this afternoon. this will maintain
elevated winds, including some brief sustained winds to gales,
for portions of lake huron. high pressure, 30.20 inches, to then
quickly build in over michigan tonight into saturday morning.


lhz362-363-462-463-092300-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
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-
952 am est fri jan 9 2026

...gale warning in effect until 7 pm est this evening...

.rest of today...south winds 20 to 25 knots becoming southwest to
30 knots early in the afternoon...then veering to the west late
in the afternoon. gusts to 40 knot gales. a chance of rain late
in the morning. waves 10 to 14 feet. waves occasionally around
18 feet. 
.tonight...northwest winds 20 to 25 knots with gusts to 35 knot
gales decreasing to 15 to 20 knots late in the evening...then
decreasing to 5 to 10 knots after midnight veering to the
northwest 5 to 10 knots early in the morning. waves 10 to 14 feet
subsiding to 3 to 5 feet. waves occasionally around 18 feet. 
.saturday...east winds 5 to 10 knots becoming southeast 10 to
15 knots in the late morning and afternoon. snow likely in the
afternoon. waves 3 to 5 feet. 
.saturday night...east winds 10 to 15 knots becoming north 15 to
20 knots by midnight...then increasing to 20 to 25 knots after
midnight. snow and rain likely in the evening...then a chance of
snow after midnight. waves 6 to 9 feet. waves occasionally around
12 feet. 
.sunday...north winds 20 to 25 knots with gusts to around
30 knots backing to the northwest with gusts to around 30 knots
late in the morning...then becoming west 15 to 20 knots late in
the evening. a chance of snow in the morning. waves 8 to 12 feet.
waves occasionally around 15 feet. 
.monday...southwest winds 20 to 25 knots decreasing to 15 to
20 knots. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tuesday...southwest winds 10 to 15 knots becoming south 15 to
20 knots in the late morning and early afternoon...then
decreasing to 10 to 15 knots early in the evening becoming
southwest 15 to 20 knots by midnight. a chance of rain and snow .
waves 3 to 5 feet. 


$$

fzus63 kmkx 091443
glflm 
expires:202601092215;;059418

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
843 am cst fri jan 9 2026

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...

strong low pressure around 29.3 inches will continue to lift  
northeastward across eastern ontario into quebec. gusty southwest
winds with gales linger across the far southern third of the lake
this morning, but west to northwest gales are expected to develop
across the entire lake later later this morning into the midday 
and afternoon hours. gale warnings are in effect. 

winds will gradually weaken this afternoon as high pressure 
around 30.2 inches works its way across lake michigan through 
tonight. meanwhile, an area of low pressure lifting through the 
southern plains and an additional area of low pressure digging 
into the upper midwest will interact, merging over the great 
lakes region into saturday. expect west-northwesterly winds over 
lake michigan to increase on the backside of this deepening area 
of low pressure as it lift into eastern ontario/quebec. gales may
develop in association with this feature. another area of high 
pressure will build across the region for sunday before another 
low traverses the region early next week.


lmz261-362-364-366-563-565-567-868-092215-
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-
843 am cst fri jan 9 2026

sheboygan wi to pentwater mi north...

...gale warning in effect until 3 pm cst this afternoon...

.rest of today...northwest gales to 35 kt diminishing to 30 kt.
patchy fog through mid morning. rain with snow likely through mid
morning. waves 7 to 10 ft occasionally to 13 ft building to 8 to
11 ft occasionally to 14 ft, then subsiding to 5 to 8 ft
occasionally to 10 ft. 
.tonight...northwest winds 10 to 20 kt becoming west 10 to 15 kt
late in the evening, then backing to south after midnight
becoming 10 to 15 kt late. waves 3 to 5 ft subsiding to 1 to
2 ft. 
.saturday...south winds 10 to 15 kt becoming southeast late in
the morning, then increasing to 10 to 20 kt early in the
afternoon backing to north 15 to 25 kt late. chance of snow in
the morning, then snow in the afternoon. waves 1 to 3 ft building
to 3 to 5 ft. 
.saturday night...north winds to 30 kt increasing to gales to
35 kt. snow likely in the evening, then chance of snow overnight.
waves 5 to 8 ft occasionally to 10 ft building to 8 to 11 ft
occasionally to 14 ft. 
.sunday...north gales to 35 kt becoming northwest to 30 kt. waves
8 to 12 ft occasionally to 16 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.sunday night...west winds to 30 kt becoming southwest. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft. 
.monday...southwest winds to 30 kt diminishing to 15 to 25 kt.
waves 5 to 8 ft occasionally to 10 ft. 
.tuesday...southwest winds 10 to 20 kt becoming west. chance of
rain and snow. waves 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 091443
glflm 
expires:202601092215;;059419

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
843 am cst fri jan 9 2026

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...

strong low pressure around 29.3 inches will continue to lift  
northeastward across eastern ontario into quebec. gusty southwest
winds with gales linger across the far southern third of the lake
this morning, but west to northwest gales are expected to develop
across the entire lake later later this morning into the midday 
and afternoon hours. gale warnings are in effect. 

winds will gradually weaken this afternoon as high pressure 
around 30.2 inches works its way across lake michigan through 
tonight. meanwhile, an area of low pressure lifting through the 
southern plains and an additional area of low pressure digging 
into the upper midwest will interact, merging over the great 
lakes region into saturday. expect west-northwesterly winds over 
lake michigan to increase on the backside of this deepening area 
of low pressure as it lift into eastern ontario/quebec. gales may
develop in association with this feature. another area of high 
pressure will build across the region for sunday before another 
low traverses the region early next week.


lmz669-671-870-872-092215-
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 whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
843 am cst fri jan 9 2026

sheboygan wi to pentwater mi south to north point light wi to
grand haven mi...

...gale warning in effect until 3 pm cst this afternoon...

.rest of today...northwest gales to 35 kt diminishing to 15 to
25 kt. patchy fog through mid morning. rain through mid morning.
waves 7 to 10 ft occasionally to 13 ft building to 8 to 12 ft
occasionally to 16 ft, then subsiding to 6 to 9 ft occasionally
to 12 ft. 
.tonight...northwest winds 5 to 10 kt backing to southeast 10 to
15 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 1 to
3 ft. 
.saturday...south winds 10 to 15 kt veering to west 10 to 20 kt
early in the afternoon, then increasing to 15 to 25 kt late. snow
likely in the morning, then snow in the afternoon. waves 2 to
4 ft building to 4 to 6 ft occasionally to 8 ft. 
.saturday night...northwest winds to 30 kt increasing to gales to
35 kt. snow likely. waves 6 to 9 ft occasionally to 12 ft
building to 8 to 12 ft occasionally to 16 ft. 
.sunday...northwest gales to 35 kt diminishing to 30 kt. waves
10 to 14 ft occasionally to 18 ft. 
.sunday night...west winds 15 to 25 kt becoming southwest to
30 kt. waves 4 to 7 ft occasionally to 9 ft building to 6 to 9 ft
occasionally to 12 ft. 
.monday...southwest winds to 30 kt diminishing to 15 to 25 kt.
waves 6 to 9 ft occasionally to 12 ft. 
.tuesday...southwest winds 15 to 25 kt. chance of rain. waves
4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmqt 091500
glfls 
expires:202601092100;;059823

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri jan 9 2026

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...

29.4 inch low pressure is over northern ontario this morning, headed 
for quebec by this afternoon. 30.2 inch ridging settles over the 
great lakes tonight as the low pushes into quebec, though a weak 
30.1 inch low will approach over northwest ontario. this low will 
merge with another low moving into the great lakes from the 
southeast on saturday, making a 29.8 inch low near lakes ontario and 
erie saturday afternoon. saturday night, the low deepens to 29.6 
inches over southern ontario while 30.5 inch high pressure builds 
over the plains. throughout sunday, the low will push east over the 
st. lawrence seaway while the high slides south of the great lakes. 
sunday night, a weak 29.9 inch trough pushes over lake superior 
associated with a 29.6 inch low over hudson bay. a weak 30.0 inch 
high then moves over the lake monday night ahead of a 29.4 inch low 
over lake winnipeg. this low deepens to 29.3 inches by tuesday 
evening near lake superior before moving to the ontario/quebec line 
wednesday afternoon. meanwhile, 30.5 inch high pressure moves over 
the dakotas.



lsz162-092100-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am est fri jan 9 2026 /900 am cst fri jan 9 2026/

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 091500
glfls 
expires:202601092100;;059824

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri jan 9 2026

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...

29.4 inch low pressure is over northern ontario this morning, headed 
for quebec by this afternoon. 30.2 inch ridging settles over the 
great lakes tonight as the low pushes into quebec, though a weak 
30.1 inch low will approach over northwest ontario. this low will 
merge with another low moving into the great lakes from the 
southeast on saturday, making a 29.8 inch low near lakes ontario and 
erie saturday afternoon. saturday night, the low deepens to 29.6 
inches over southern ontario while 30.5 inch high pressure builds 
over the plains. throughout sunday, the low will push east over the 
st. lawrence seaway while the high slides south of the great lakes. 
sunday night, a weak 29.9 inch trough pushes over lake superior 
associated with a 29.6 inch low over hudson bay. a weak 30.0 inch 
high then moves over the lake monday night ahead of a 29.4 inch low 
over lake winnipeg. this low deepens to 29.3 inches by tuesday 
evening near lake superior before moving to the ontario/quebec line 
wednesday afternoon. meanwhile, 30.5 inch high pressure moves over 
the dakotas.



lsz263-092100-
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-
1000 am est fri jan 9 2026

.rest of today...north winds 15 to 25 knots backing northwest by
late morning, then diminishing to 5 to 15 knots by mid afternoon.
waves 5 to 8 feet occasionally to 10 feet subsiding to 1 to
3 feet. 
.tonight...southwest winds 5 to 15 knots backing south late. a
chance of snow showers. waves subsiding to calm to 2 feet. 
.saturday...west winds 5 to 15 knots increasing to 10 to 20 knots
by late morning, then becoming north 20 to 30 knots by mid
afternoon. a chance of snow showers in the morning, then snow
showers likely in the afternoon. waves building to 4 to 7 feet
occasionally to 9 feet. 
.saturday night...north gales to 35 knots diminishing to 20 to
30 knots after midnight. freezing spray. a chance of snow
showers. waves building to 6 to 9 feet occasionally to 11 feet,
then subsiding to 4 to 7 feet occasionally to 9 feet. 
.sunday...northwest winds 10 to 20 knots becoming west gales to
35 knots in the afternoon. waves subsiding to 1 to 3 feet, then
building to 3 to 6 feet occasionally to 8 feet. 
.sunday night...west gales to 35 knots. a chance of snow showers.
waves building to 7 to 10 feet occasionally to 13 feet, then
subsiding to 5 to 8 feet occasionally to 10 feet. 
.monday...west winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 
.tuesday...north winds 15 to 25 knots increasing to gales to
35 knots. a chance of snow showers, possibly mixed with rain.
freezing spray. waves building to 6 to 9 feet occasionally to
11 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 091500
glfls 
expires:202601092100;;059825

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri jan 9 2026

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...

29.4 inch low pressure is over northern ontario this morning, headed 
for quebec by this afternoon. 30.2 inch ridging settles over the 
great lakes tonight as the low pushes into quebec, though a weak 
30.1 inch low will approach over northwest ontario. this low will 
merge with another low moving into the great lakes from the 
southeast on saturday, making a 29.8 inch low near lakes ontario and 
erie saturday afternoon. saturday night, the low deepens to 29.6 
inches over southern ontario while 30.5 inch high pressure builds 
over the plains. throughout sunday, the low will push east over the 
st. lawrence seaway while the high slides south of the great lakes. 
sunday night, a weak 29.9 inch trough pushes over lake superior 
associated with a 29.6 inch low over hudson bay. a weak 30.0 inch 
high then moves over the lake monday night ahead of a 29.4 inch low 
over lake winnipeg. this low deepens to 29.3 inches by tuesday 
evening near lake superior before moving to the ontario/quebec line 
wednesday afternoon. meanwhile, 30.5 inch high pressure moves over 
the dakotas.



lsz264-092100-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am est fri jan 9 2026

.rest of today...north winds 20 to 30 knots becoming northwest
15 to 25 knots by mid afternoon. waves 6 to 9 feet occasionally
to 11 feet building to 7 to 10 feet occasionally to 13 feet, then
subsiding to 3 to 5 feet occasionally to 7 feet. 
.tonight...northwest winds 5 to 15 knots backing south by
midnight. a chance of snow showers. waves subsiding to calm to
2 feet. 
.saturday...southeast winds 5 to 15 knots becoming east 10 to
20 knots by late morning, then becoming northeast 20 to 30 knots
by mid afternoon. a chance of snow showers in the morning, then
snow showers likely in the afternoon. waves building to 4 to
7 feet occasionally to 9 feet. 
.saturday night...northeast gales to 35 knots becoming north
20 to 30 knots after midnight. freezing spray. a chance of snow
showers. waves building to 6 to 9 feet occasionally to 11 feet,
then subsiding to 4 to 7 feet occasionally to 9 feet. 
.sunday...north winds 15 to 25 knots becoming west 20 to 30 knots
in the afternoon. freezing spray in the morning. waves subsiding
to 1 to 3 feet, then building to 3 to 6 feet occasionally to
8 feet. 
.sunday night...west gales to 35 knots. a chance of snow showers.
waves building to 6 to 10 feet occasionally to 13 feet. 
.monday...west winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to 1 to 3 feet. 
.tuesday...northeast winds 15 to 25 knots becoming north gales to
35 knots. a chance of rain showers. a chance of snow showers.
freezing spray. waves building to 6 to 9 feet occasionally to
11 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 091500
glfls 
expires:202601092100;;059826

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri jan 9 2026

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...

29.4 inch low pressure is over northern ontario this morning, headed 
for quebec by this afternoon. 30.2 inch ridging settles over the 
great lakes tonight as the low pushes into quebec, though a weak 
30.1 inch low will approach over northwest ontario. this low will 
merge with another low moving into the great lakes from the 
southeast on saturday, making a 29.8 inch low near lakes ontario and 
erie saturday afternoon. saturday night, the low deepens to 29.6 
inches over southern ontario while 30.5 inch high pressure builds 
over the plains. throughout sunday, the low will push east over the 
st. lawrence seaway while the high slides south of the great lakes. 
sunday night, a weak 29.9 inch trough pushes over lake superior 
associated with a 29.6 inch low over hudson bay. a weak 30.0 inch 
high then moves over the lake monday night ahead of a 29.4 inch low 
over lake winnipeg. this low deepens to 29.3 inches by tuesday 
evening near lake superior before moving to the ontario/quebec line 
wednesday afternoon. meanwhile, 30.5 inch high pressure moves over 
the dakotas.



lsz265-092100-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am est fri jan 9 2026

...gale warning in effect until 4 pm est this afternoon...

.rest of today...north gales to 35 knots backing northwest by
late morning, then diminishing to 20 to 30 knots by mid
afternoon. waves 9 to 12 feet occasionally to 15 feet subsiding
to 5 to 8 feet occasionally to 10 feet. 
.tonight...west winds 10 to 20 knots becoming southwest 5 to
15 knots by midnight, then backing south late. a chance of snow
showers after midnight. waves subsiding to calm to 2 feet. 
.saturday...south winds 10 to 20 knots backing southeast by late
morning, then becoming northeast 15 to 25 knots by mid afternoon.
a chance of snow showers in the morning, then snow showers in the
afternoon. waves building to 2 to 4 feet. 
.saturday night...northeast gales to 35 knots backing north after
midnight. snow showers likely in the evening, then a chance of
snow showers after midnight. freezing spray after midnight. waves
building to 7 to 10 feet occasionally to 13 feet. 
.sunday...north winds 20 to 30 knots backing west in the
afternoon. freezing spray in the morning. waves subsiding to 2 to
4 feet. 
.sunday night...west winds 20 to 30 knots increasing to gales to
35 knots after midnight. a chance of snow showers. waves building
to 3 to 6 feet occasionally to 8 feet. 
.monday...west winds 20 to 30 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet. 
.tuesday...north winds 15 to 25 knots increasing to gales to
35 knots. a chance of rain showers. a chance of snow showers.
freezing spray. waves building to 6 to 9 feet occasionally to
11 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 091500
glfls 
expires:202601092100;;059827

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri jan 9 2026

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...

29.4 inch low pressure is over northern ontario this morning, headed 
for quebec by this afternoon. 30.2 inch ridging settles over the 
great lakes tonight as the low pushes into quebec, though a weak 
30.1 inch low will approach over northwest ontario. this low will 
merge with another low moving into the great lakes from the 
southeast on saturday, making a 29.8 inch low near lakes ontario and 
erie saturday afternoon. saturday night, the low deepens to 29.6 
inches over southern ontario while 30.5 inch high pressure builds 
over the plains. throughout sunday, the low will push east over the 
st. lawrence seaway while the high slides south of the great lakes. 
sunday night, a weak 29.9 inch trough pushes over lake superior 
associated with a 29.6 inch low over hudson bay. a weak 30.0 inch 
high then moves over the lake monday night ahead of a 29.4 inch low 
over lake winnipeg. this low deepens to 29.3 inches by tuesday 
evening near lake superior before moving to the ontario/quebec line 
wednesday afternoon. meanwhile, 30.5 inch high pressure moves over 
the dakotas.



lsz266-092100-
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-
1000 am est fri jan 9 2026

...gale warning in effect until 4 pm est this afternoon...

.rest of today...north gales to 40 knots becoming northwest 20 to
30 knots by mid afternoon. waves 10 to 14 feet occasionally to
18 feet subsiding to 7 to 10 feet occasionally to 13 feet. 
.tonight...northwest winds 10 to 20 knots becoming south 5 to
15 knots by midnight, then increasing to 10 to 20 knots late. a
slight chance of snow showers after midnight. waves subsiding to
calm to 2 feet. 
.saturday...southeast winds 10 to 20 knots becoming east 20 to
30 knots by mid afternoon. a chance of snow showers in the
morning, then snow showers likely in the afternoon. waves
building to 3 to 6 feet occasionally to 8 feet. 
.saturday night...northeast winds 20 to 30 knots becoming north
gales to 35 knots after midnight. snow showers likely in the
evening, then a chance of snow showers after midnight. freezing
spray after midnight. waves building to 7 to 10 feet occasionally
to 13 feet. 
.sunday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. freezing spray in the morning. waves
subsiding to 3 to 5 feet occasionally to 7 feet. 
.sunday night...west winds 20 to 30 knots. a chance of snow
showers. waves building to 6 to 10 feet occasionally to 13 feet. 
.monday...west winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.tuesday...north winds 15 to 25 knots increasing to gales to
35 knots. a chance of rain showers. a chance of snow showers.
freezing spray. waves subsiding to 1 to 3 feet, then building to
6 to 9 feet occasionally to 11 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 091500
glfls 
expires:202601092100;;059828

open lake forecast for lake superior
national weather service marquette mi
1000 am est fri jan 9 2026

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...

29.4 inch low pressure is over northern ontario this morning, headed 
for quebec by this afternoon. 30.2 inch ridging settles over the 
great lakes tonight as the low pushes into quebec, though a weak 
30.1 inch low will approach over northwest ontario. this low will 
merge with another low moving into the great lakes from the 
southeast on saturday, making a 29.8 inch low near lakes ontario and 
erie saturday afternoon. saturday night, the low deepens to 29.6 
inches over southern ontario while 30.5 inch high pressure builds 
over the plains. throughout sunday, the low will push east over the 
st. lawrence seaway while the high slides south of the great lakes. 
sunday night, a weak 29.9 inch trough pushes over lake superior 
associated with a 29.6 inch low over hudson bay. a weak 30.0 inch 
high then moves over the lake monday night ahead of a 29.4 inch low 
over lake winnipeg. this low deepens to 29.3 inches by tuesday 
evening near lake superior before moving to the ontario/quebec line 
wednesday afternoon. meanwhile, 30.5 inch high pressure moves over 
the dakotas.



lsz267-092100-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am est fri jan 9 2026

...gale warning in effect until 4 pm est this afternoon...

.rest of today...north gales to 40 knots becoming northwest gales
to 35 knots by mid afternoon. a chance of rain and snow showers
late in the morning. waves 7 to 10 feet occasionally to 13 feet
building to 10 to 14 feet occasionally to 18 feet, then subsiding
to 7 to 10 feet occasionally to 13 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots by midnight, then becoming south 10 to 20 knots late.
waves subsiding to calm to 2 feet. 
.saturday...southeast winds 10 to 20 knots increasing to 15 to
25 knots by late morning, then backing east by mid afternoon. a
slight chance of snow showers in the morning, then snow showers
likely in the afternoon. waves building to 2 to 4 feet. 
.saturday night...northeast winds 20 to 30 knots becoming north
gales to 35 knots after midnight. snow showers in the evening,
then a chance of snow showers after midnight. freezing spray
after midnight. waves building to 5 to 9 feet occasionally to
11 feet. 
.sunday...north winds 15 to 25 knots backing northwest in the
afternoon. freezing spray in the morning. waves subsiding to 2 to
4 feet. 
.sunday night...west winds 15 to 25 knots becoming southwest
20 to 30 knots after midnight. a chance of snow showers. waves
building to 5 to 8 feet occasionally to 10 feet. 
.monday...west winds 15 to 25 knots backing southwest. waves
subsiding to 2 to 4 feet. 
.tuesday...southeast winds 15 to 25 knots becoming northeast
20 to 30 knots. a chance of rain and snow showers. waves
subsiding to 1 to 3 feet, then building to 4 to 7 feet
occasionally to 9 feet. 

note, wave height forecasts are for ice free areas.

$$