fzus63 kdtx 070255
glflh 
expires:202601071100;;916951

open lake forecast for lake huron
national weather service detroit/pontiac mi
955 pm est tue jan 6 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, 29.50 inches, departs this evening
although dense fog remains in place. high pressure, 29.90 inches,
then returns mid-week to support favorable marine conditions.


lhz361-362-071100-
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-
955 pm est tue jan 6 2026

.rest of tonight...north winds 5 to 10 knots becoming west 10 to
15 knots early in the morning. a chance of rain. areas of fog
this evening. patchy fog after midnight. waves 1 to 3 feet. 
.wednesday...west winds 10 to 15 knots backing to the southwest
late in the afternoon. a chance of snow in the morning. patchy
fog in the morning. waves 1 to 3 feet. 
.wednesday night...southwest winds 5 to 10 knots becoming south
10 to 15 knots after midnight. waves 2 to 4 feet. 
.thursday...south winds 10 to 15 knots. waves 3 to 5 feet. 
.thursday night...south winds 10 to 15 knots becoming southeast
15 to 20 knots in the late evening and overnight. rain. waves
3 to 5 feet. 
.friday...south winds 15 to 20 knots veering to the west late in
the morning...then becoming northwest 10 to 15 knots late in the
afternoon. a chance of rain. waves 3 to 5 feet. 
.saturday...east winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots until early evening...then
becoming north to 30 knots by midnight. a chance of snow early in
the morning. a chance of rain early in the morning. snow likely.
waves 6 to 9 feet building to 10 to 14 feet . waves occasionally
around 18 feet. 
.sunday...north winds to 30 knots with gusts to 35 knot gales
becoming northwest 20 to 25 knots with gusts to 35 knot gales
until early evening...then becoming west 15 to 20 knots by
midnight. a chance of snow early in the morning. waves 8 to
12 feet subsiding to 5 to 7 feet by midnight. waves occasionally
around 15 feet. 


$$

fzus63 kdtx 070255
glflh 
expires:202601071100;;916952

open lake forecast for lake huron
national weather service detroit/pontiac mi
955 pm est tue jan 6 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, 29.50 inches, departs this evening
although dense fog remains in place. high pressure, 29.90 inches,
then returns mid-week to support favorable marine conditions.


lhz363-462>464-071100-
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-
955 pm est tue jan 6 2026

.rest of tonight...north winds 5 to 10 knots becoming northwest
10 to 15 knots after midnight. a chance of rain. a chance of
drizzle this evening. patchy fog. waves 1 to 3 feet. 
.wednesday...west winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then becoming southwest 10 to
15 knots in the afternoon. a chance of rain and snow in the
morning. patchy fog in the morning. waves 1 to 3 feet. 
.wednesday night...southwest winds 10 to 15 knots. waves 2 to
4 feet. 
.thursday...south winds 10 to 15 knots. waves 2 to 4 feet. 
.thursday night...southeast winds 15 to 20 knots with gusts to
around 30 knots becoming south 20 to 25 knots with gusts to
around 30 knots after midnight. rain. waves 3 to 5 feet. 
.friday...south winds 15 to 20 knots veering to the west late in
the morning...then becoming northwest 10 to 15 knots late in the
afternoon. rain in the morning. waves 3 to 5 feet. 
.saturday...east winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots early in the evening...
then becoming southwest to 30 knots with gusts to 35 knot gales
by midnight. snow likely early in the morning. rain likely. a
chance of snow . waves 5 to 7 feet building to 10 to 14 feet .
waves occasionally around 18 feet. 
.sunday...west winds to 30 knots with gusts to 35 knot gales
decreasing to 15 to 20 knots. a chance of snow early in the
morning. waves 8 to 12 feet subsiding to 5 to 7 feet by midnight.
waves occasionally around 15 feet. 


$$

fzus63 kmkx 070320
glflm 
expires:202601071015;;918421

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
920 pm cst tue jan 6 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...

no major changes to the previous synopsis this evening.

low pressure around 29.5 inches over lower mi will continue to 
lift eastward up the st. lawrence river valley tonight. winds will
remain breezy and out of the northwest this evening accompanied 
by some rain and fog, where we cannot rule out seeing some pockets
of dense marine fog at times given the warm air moving in 
overnight. winds will also weaken and turn westerly into early 
wednesday morning before turning southwesterly as high pressure 
around 30.1 inches treks up the ohio river valley through the day 
wednesday. will see breezy south-southwesterly winds continue into
thursday before another low pressure around 29.6 inches tracks up
from the central plains and across the southern tip of lake 
michigan thursday night. behind this low pressure expected winds 
to increase and turn more northerly for friday before gradually 
easing friday afternoon and turning more easterly ahead of another
developing low pressure. this system is progged to lift from 
southern plains up into the eastern great lakes for saturday 
bringing a return of stronger northerly winds with the next 
potential to see some gales over the open waters of lake michigan
through saturday night.


lmz080-669-671-673-675-777-779-870-872-874-876-878-071015-
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-
920 pm cst tue jan 6 2026

sheboygan wi to pentwater mi south...

.rest of tonight...west winds 10 to 20 kt. slight chance of rain
and drizzle late this evening. patchy fog. waves 2 to 4 ft. 
.wednesday...west winds 10 to 15 kt becoming south 10 to 20 kt.
patchy fog in the morning. waves 2 to 4 ft. 
.wednesday night...south winds 10 to 20 kt. waves 3 to 5 ft.
.thursday...south winds 10 to 20 kt. rain in the afternoon. waves
4 to 6 ft occasionally to 8 ft. 
.thursday night...south winds 15 to 25 kt veering to west. rain
in the evening, then chance of rain overnight. waves 3 to 5 ft. 
.friday...northwest winds 10 to 20 kt becoming north. chance of
rain in the morning. waves 3 to 5 ft. 
.friday night...northeast winds 10 to 20 kt becoming east. chance
of rain and snow. waves 4 to 6 ft occasionally to 8 ft. 
.saturday...east winds 15 to 25 kt veering to west to 30 kt. rain
and snow likely. waves 6 to 9 ft occasionally to 12 ft building
to 8 to 11 ft occasionally to 14 ft. 
.sunday...northwest gales to 35 kt diminishing to 15 to 25 kt.
waves 8 to 11 ft occasionally to 14 ft subsiding to 5 to 8 ft
occasionally to 10 ft.  

$$

fzus63 kmkx 070320
glflm 
expires:202601071015;;918420

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
920 pm cst tue jan 6 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...

no major changes to the previous synopsis this evening.

low pressure around 29.5 inches over lower mi will continue to 
lift eastward up the st. lawrence river valley tonight. winds will
remain breezy and out of the northwest this evening accompanied 
by some rain and fog, where we cannot rule out seeing some pockets
of dense marine fog at times given the warm air moving in 
overnight. winds will also weaken and turn westerly into early 
wednesday morning before turning southwesterly as high pressure 
around 30.1 inches treks up the ohio river valley through the day 
wednesday. will see breezy south-southwesterly winds continue into
thursday before another low pressure around 29.6 inches tracks up
from the central plains and across the southern tip of lake 
michigan thursday night. behind this low pressure expected winds 
to increase and turn more northerly for friday before gradually 
easing friday afternoon and turning more easterly ahead of another
developing low pressure. this system is progged to lift from 
southern plains up into the eastern great lakes for saturday 
bringing a return of stronger northerly winds with the next 
potential to see some gales over the open waters of lake michigan
through saturday night.


lmz261-362-364-366-563-565-567-868-071015-
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-
920 pm cst tue jan 6 2026

sheboygan wi to pentwater mi north...

.rest of tonight...northwest winds 10 to 15 kt becoming west.
snow likely with a chance of rain late this evening. patchy fog.
waves 1 to 3 ft. 
.wednesday...west winds 10 to 15 kt becoming southwest 10 to
20 kt. waves 2 to 4 ft. 
.wednesday night...southwest winds 10 to 20 kt becoming south.
patchy fog in the evening, then patchy dense fog overnight. waves
3 to 5 ft. 
.thursday...south winds 10 to 20 kt. chance of rain in the
afternoon. waves 4 to 6 ft occasionally to 8 ft. 
.thursday night...east winds 10 to 20 kt backing to north. rain
in the evening, then rain likely overnight. waves 3 to 5 ft. 
.friday...northwest winds 15 to 25 kt becoming north. chance of
rain in the morning. waves 3 to 5 ft. 
.friday night...northeast winds 10 to 15 kt becoming east 10 to
20 kt. chance of rain. waves 3 to 5 ft. 
.saturday...east winds 15 to 25 kt becoming northeast to 30 kt.
snow likely. waves 4 to 6 ft occasionally to 8 ft building to
6 to 9 ft occasionally to 12 ft. 
.sunday...northwest winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft subsiding to 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmqt 070300
glfls 
expires:202601070900;;917202

open lake forecast for lake superior
national weather service marquette mi
1000 pm est tue jan 6 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...

a 25.6 inch low over southern lower michigan this afternoon moves 
over lake ontario by this evening, maintaining a 29.6 inch trough 
over lake superior tonight. ridging of 29.7 inches then moves over 
lake superior on wednesday ahead of a 29.5 inch low arriving over 
northern ontario on thursday. meanwhile, a 29.4 inch colorado low 
will quickly track northeast across lower michigan thursday night 
and into quebec by friday afternoon. in its wake, another deepening 
low pressure of at least 29.6 inches will develop near lower 
michigan late saturday before lifting northeast into the canadian 
maritimes by sunday. a 30.5 inch high will build into the southern 
plains on sunday, extending a 30.2 inch ridge north to lake superior.



lsz264-070900-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm est tue jan 6 2026

.rest of tonight...northwest winds 5 to 15 knots backing west
late. waves calm to 2 feet building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots. waves building to
2 to 4 feet. 
.wednesday night...southwest winds 5 to 15 knots. waves subsiding
to 1 to 3 feet. 
.thursday...southwest winds 5 to 15 knots. waves subsiding to
calm to 2 feet. 
.thursday night...north winds 5 to 15 knots increasing to 15 to
25 knots after midnight. a slight chance of rain. a slight chance
of snow after midnight. waves building to 2 to 4 feet. 
.friday...north winds 15 to 25 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.friday night...north winds 5 to 15 knots becoming east 10 to
20 knots after midnight. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 
.saturday...northeast gales to 35 knots backing north. a chance
of snow. freezing spray. waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 6 to 9 feet
occasionally to 11 feet. 
.sunday...west winds 20 to 30 knots diminishing to 15 to
25 knots. freezing spray. waves subsiding to 3 to 6 feet
occasionally to 8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 070300
glfls 
expires:202601070900;;917203

open lake forecast for lake superior
national weather service marquette mi
1000 pm est tue jan 6 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...

a 25.6 inch low over southern lower michigan this afternoon moves 
over lake ontario by this evening, maintaining a 29.6 inch trough 
over lake superior tonight. ridging of 29.7 inches then moves over 
lake superior on wednesday ahead of a 29.5 inch low arriving over 
northern ontario on thursday. meanwhile, a 29.4 inch colorado low 
will quickly track northeast across lower michigan thursday night 
and into quebec by friday afternoon. in its wake, another deepening 
low pressure of at least 29.6 inches will develop near lower 
michigan late saturday before lifting northeast into the canadian 
maritimes by sunday. a 30.5 inch high will build into the southern 
plains on sunday, extending a 30.2 inch ridge north to lake superior.



lsz265-070900-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm est tue jan 6 2026

.rest of tonight...west winds 10 to 20 knots. patchy fog. waves
calm to 2 feet building to 1 to 3 feet, then subsiding to calm to
2 feet. 
.wednesday...southwest winds 10 to 20 knots. patchy fog in the
morning. waves calm to 2 feet. 
.wednesday night...south winds 10 to 20 knots. waves calm to
2 feet. 
.thursday...south winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots increasing to 15 to
25 knots after midnight. a chance of rain, possibly mixed with
snow. waves building to 2 to 4 feet. 
.friday...north winds 20 to 30 knots becoming northwest 15 to
25 knots in the afternoon. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.friday night...north winds 10 to 20 knots becoming east 15 to
25 knots after midnight. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 
.saturday...northeast gales to 35 knots becoming north gales to
40 knots. a chance of snow. freezing spray. waves building to
10 to 14 feet occasionally to 18 feet. 
.sunday...northwest gales to 35 knots becoming west 20 to
30 knots. freezing spray. waves subsiding to 1 to 3 feet, then
building to 2 to 4 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 070300
glfls 
expires:202601070900;;917204

open lake forecast for lake superior
national weather service marquette mi
1000 pm est tue jan 6 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...

a 25.6 inch low over southern lower michigan this afternoon moves 
over lake ontario by this evening, maintaining a 29.6 inch trough 
over lake superior tonight. ridging of 29.7 inches then moves over 
lake superior on wednesday ahead of a 29.5 inch low arriving over 
northern ontario on thursday. meanwhile, a 29.4 inch colorado low 
will quickly track northeast across lower michigan thursday night 
and into quebec by friday afternoon. in its wake, another deepening 
low pressure of at least 29.6 inches will develop near lower 
michigan late saturday before lifting northeast into the canadian 
maritimes by sunday. a 30.5 inch high will build into the southern 
plains on sunday, extending a 30.2 inch ridge north to lake superior.



lsz266-070900-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
1000 pm est tue jan 6 2026

.rest of tonight...west winds 10 to 20 knots becoming northwest
15 to 25 knots by midnight, then becoming west 10 to 20 knots
late. patchy fog late in the evening. isolated rain showers late
in the evening. waves calm to 2 feet building to 1 to 3 feet. 
.wednesday...west winds 10 to 20 knots becoming southwest 15 to
25 knots. waves 1 to 3 feet. 
.wednesday night...south winds 15 to 25 knots diminishing to
10 to 20 knots late. waves building to 2 to 4 feet. 
.thursday...south winds 10 to 20 knots. a slight chance of rain
in the afternoon. waves subsiding to calm to 2 feet. 
.thursday night...north winds 5 to 15 knots increasing to 15 to
25 knots after midnight. a chance of rain. a chance of snow after
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.friday...north gales to 35 knots diminishing to 15 to 25 knots
in the afternoon. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday night...north winds 10 to 20 knots becoming east 15 to
25 knots after midnight. waves subsiding to 2 to 4 feet. 
.saturday...east gales to 35 knots becoming north gales to
40 knots. a chance of snow. freezing spray. waves building to
10 to 14 feet occasionally to 18 feet. 
.sunday...north gales to 35 knots becoming west 20 to 30 knots.
freezing spray. waves subsiding to 3 to 6 feet occasionally to
8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 070300
glfls 
expires:202601070900;;917205

open lake forecast for lake superior
national weather service marquette mi
1000 pm est tue jan 6 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...

a 25.6 inch low over southern lower michigan this afternoon moves 
over lake ontario by this evening, maintaining a 29.6 inch trough 
over lake superior tonight. ridging of 29.7 inches then moves over 
lake superior on wednesday ahead of a 29.5 inch low arriving over 
northern ontario on thursday. meanwhile, a 29.4 inch colorado low 
will quickly track northeast across lower michigan thursday night 
and into quebec by friday afternoon. in its wake, another deepening 
low pressure of at least 29.6 inches will develop near lower 
michigan late saturday before lifting northeast into the canadian 
maritimes by sunday. a 30.5 inch high will build into the southern 
plains on sunday, extending a 30.2 inch ridge north to lake superior.



lsz267-070900-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm est tue jan 6 2026

.rest of tonight...west winds 10 to 20 knots. patchy fog.
isolated rain showers, possibly mixed with snow. waves calm to
2 feet building to 1 to 3 feet. 
.wednesday...west winds 10 to 20 knots becoming southwest 15 to
25 knots by late morning, then backing south by mid afternoon.
waves 1 to 3 feet. 
.wednesday night...south winds 15 to 25 knots diminishing to
10 to 20 knots late. waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.thursday...south winds 10 to 20 knots. waves subsiding to calm
to 2 feet. 
.thursday night...southeast winds 10 to 20 knots becoming north
15 to 25 knots after midnight. rain likely. waves building to
2 to 4 feet. 
.friday...north winds 20 to 30 knots diminishing to 15 to
25 knots in the afternoon. a chance of rain in the morning. waves
building to 3 to 6 feet occasionally to 8 feet. 
.friday night...north winds 15 to 25 knots veering east after
midnight. waves subsiding to 1 to 3 feet, then building to 2 to
4 feet. 
.saturday...east gales to 35 knots backing northeast. snow
likely, then a chance of snow. freezing spray. waves building to
7 to 11 feet occasionally to 14 feet. 
.sunday...north gales to 35 knots becoming west 20 to 30 knots.
freezing spray. waves subsiding to 3 to 6 feet occasionally to
8 feet. 

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 070300
glfls 
expires:202601070900;;917200

open lake forecast for lake superior
national weather service marquette mi
1000 pm est tue jan 6 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...

a 25.6 inch low over southern lower michigan this afternoon moves 
over lake ontario by this evening, maintaining a 29.6 inch trough 
over lake superior tonight. ridging of 29.7 inches then moves over 
lake superior on wednesday ahead of a 29.5 inch low arriving over 
northern ontario on thursday. meanwhile, a 29.4 inch colorado low 
will quickly track northeast across lower michigan thursday night 
and into quebec by friday afternoon. in its wake, another deepening 
low pressure of at least 29.6 inches will develop near lower 
michigan late saturday before lifting northeast into the canadian 
maritimes by sunday. a 30.5 inch high will build into the southern 
plains on sunday, extending a 30.2 inch ridge north to lake superior.



lsz162-070900-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm est tue jan 6 2026 /900 pm cst tue jan 6 2026/

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

note, wave height forecasts are for ice free areas.

$$

fzus63 kmqt 070300
glfls 
expires:202601070900;;917201

open lake forecast for lake superior
national weather service marquette mi
1000 pm est tue jan 6 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...

a 25.6 inch low over southern lower michigan this afternoon moves 
over lake ontario by this evening, maintaining a 29.6 inch trough 
over lake superior tonight. ridging of 29.7 inches then moves over 
lake superior on wednesday ahead of a 29.5 inch low arriving over 
northern ontario on thursday. meanwhile, a 29.4 inch colorado low 
will quickly track northeast across lower michigan thursday night 
and into quebec by friday afternoon. in its wake, another deepening 
low pressure of at least 29.6 inches will develop near lower 
michigan late saturday before lifting northeast into the canadian 
maritimes by sunday. a 30.5 inch high will build into the southern 
plains on sunday, extending a 30.2 inch ridge north to lake superior.



lsz263-070900-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
1000 pm est tue jan 6 2026

.rest of tonight...northwest winds 5 to 15 knots backing west by
midnight. waves 1 to 3 feet. 
.wednesday...southwest winds 10 to 20 knots. waves building to
2 to 4 feet. 
.wednesday night...southwest winds 5 to 15 knots. waves subsiding
to calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots veering west in the
afternoon. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots increasing to 10 to
20 knots after midnight. a slight chance of rain and snow. waves
building to 2 to 4 feet. 
.friday...north winds 15 to 25 knots becoming northwest 10 to
20 knots in the afternoon. waves subsiding to calm to 2 feet. 
.friday night...north winds 5 to 15 knots becoming east 10 to
20 knots after midnight. waves building to 2 to 4 feet. 
.saturday...northeast gales to 35 knots backing north. a chance
of snow. freezing spray. waves building to 9 to 12 feet
occasionally to 15 feet, then subsiding to 5 to 8 feet
occasionally to 10 feet. 
.sunday...west winds 15 to 25 knots. 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.

$$