fzus63 kdtx 150147
glflh 
expires:202509151000;;996615

open lake forecast for lake huron
national weather service detroit/pontiac mi
947 pm edt sun sep 14 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...high pressure, 30.40 inches, will continue to hold
over the eastern great lakes through at least the middle of the
week. the position of this high will maintain some degree of a
light easterly component to surface winds for several days and
will sustain dry weather.


lhz361-362-151000-
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-
947 pm edt sun sep 14 2025

.rest of tonight...east winds 5 to 10 knots. waves 2 feet or
less. 
.monday...east winds 5 to 10 knots. waves 2 feet or less. 
.monday night...light and variable winds. waves 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 
.tuesday night...light and variable winds. waves 2 feet or less. 
.wednesday...light and variable winds. waves 2 feet or less. 
.thursday...light and variable winds becoming north 5 to 10 knots
early in the evening...then becoming northeast 10 to 15 knots in
the late evening and early morning. waves 2 feet or less. 
.friday...northeast winds 15 to 20 knots decreasing to 10 to
15 knots early in the evening...then increasing to 15 to 20 knots
in the late evening and early morning. waves 3 to 5 feet building
to 5 to 7 feet in the late evening and early morning. waves
occasionally around 10 feet. 


$$

fzus63 kdtx 150147
glflh 
expires:202509151000;;996616

open lake forecast for lake huron
national weather service detroit/pontiac mi
947 pm edt sun sep 14 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...high pressure, 30.40 inches, will continue to hold
over the eastern great lakes through at least the middle of the
week. the position of this high will maintain some degree of a
light easterly component to surface winds for several days and
will sustain dry weather.


lhz363-462>464-151000-
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-
947 pm edt sun sep 14 2025

.rest of tonight...northeast winds 5 to 10 knots. waves 2 feet or
less. 
.monday...east winds 5 to 10 knots in the morning becoming light
and variable...then becoming north 5 to 10 knots late in the
afternoon. waves 2 feet or less. 
.monday night...northeast winds 5 to 10 knots until early morning
becoming light and variable. waves 2 feet or less. 
.tuesday...light and variable winds. waves 2 feet or less. 
.tuesday night...light and variable winds. waves 2 feet or less. 
.wednesday...light and variable winds. waves 2 feet or less. 
.thursday...light and variable winds becoming north 5 to 10 knots
until early morning. waves 2 feet or less. 
.friday...northeast winds 15 to 20 knots. gusts to 30 knots early
in the evening. waves 2 to 4 feet building to 5 to 7 feet. waves
occasionally around 10 feet. 


$$

fzus63 kmkx 150154
glflm 
expires:202509150915;;996733

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
854 pm cdt sun sep 14 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...
 
weakening low pressure around 29.7 inches over the northern 
great plains will remain nearly stationary through at least
wednesday, with broad high pressure of 30.2 inches dominating 
our weather pattern. light (10kt or less) easterly winds are 
expected during this time over lake michigan, keeping waves in 
the 1 to 3 foot range, and usually on the lower end of that 
range. will need to continue to monitor for areas of dense fog 
development from time to time.

the risk for dense fog tonight is toward the western shoreline
north of milwaukee and up to door county.


lmz261-362-364-366-563-565-567-669-868-870-150915-
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 sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
854 pm cdt sun sep 14 2025

port washington wi to whitehall mi north...

.rest of tonight...northeast winds 10 to 15 kt veering to
southeast. patchy fog west. waves 1 to 3 ft. 
.monday...southeast winds 10 to 15 kt. waves 1 to 3 ft. 
.monday night...east winds 10 to 15 kt becoming southeast. waves
1 to 2 ft. 
.tuesday...south winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.tuesday night...south winds 5 to 10 kt. waves 1 to 2 ft. 
.wednesday...south winds 10 to 15 kt becoming southwest. waves
1 ft or less. 
.wednesday night...south winds 5 to 10 kt backing to east. waves
1 ft or less. 
.thursday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.friday...east winds 10 to 20 kt becoming northeast. waves 2 to
4 ft.  

$$

fzus63 kmkx 150154
glflm 
expires:202509150915;;996734

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
854 pm cdt sun sep 14 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...
 
weakening low pressure around 29.7 inches over the northern 
great plains will remain nearly stationary through at least
wednesday, with broad high pressure of 30.2 inches dominating 
our weather pattern. light (10kt or less) easterly winds are 
expected during this time over lake michigan, keeping waves in 
the 1 to 3 foot range, and usually on the lower end of that 
range. will need to continue to monitor for areas of dense fog 
development from time to time.

the risk for dense fog tonight is toward the western shoreline
north of milwaukee and up to door county.


lmz080-671-673-675-777-779-872-874-876-878-150915-
lake michigan from michigan city in to st. joseph mi 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 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-
854 pm cdt sun sep 14 2025

port washington wi to whitehall mi south...

.rest of tonight...northeast winds 10 to 15 kt veering to
southeast. waves 1 to 3 ft. 
.monday...southeast winds 10 to 15 kt becoming east early in the
afternoon, then becoming northeast late. waves 1 to 3 ft. 
.monday night...northeast winds 5 to 10 kt veering to southeast
10 to 15 kt. waves 1 to 2 ft. 
.tuesday...southeast winds 5 to 10 kt becoming northeast. waves
1 to 3 ft. 
.tuesday night...northeast winds 5 to 10 kt becoming east. waves
1 ft or less. 
.wednesday...southeast winds 5 to 10 kt becoming east. waves 1 ft
or less. 
.wednesday night...northeast winds 5 to 10 kt becoming east.
waves 1 ft or less. 
.thursday...southeast winds 5 to 10 kt backing to northeast 10 to
15 kt. waves 1 to 2 ft. 
.friday...east winds 10 to 20 kt becoming northeast. waves 2 to
4 ft.  

$$

fzus63 kmqt 150201
glfls 
expires:202509150800;;997037

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun sep 14 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 high over quebec rises to 30.3 inches by monday morning, 
keeping 30.1 to 30.2 inch ridging over lake superior through tuesday 
as it settles over new england. a 29.8 inch low moving through far 
northern ontario into the hudson bay area tuesday night brings 
troughing of 30.0 inches back to lake superior. troughing continues 
to deepen to 29.9 inches on wednesday and remains over the lake 
until a 30.4 inch high moving into hudson bay brings 30.1 inch 
ridging back over lake superior by thursday. ridging rises to 30.3 
inches on friday.



lsz162-150800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 pm edt sun sep 14 2025 /901 pm cdt sun sep 14 2025/

...dense fog advisory in effect until 11 am edt /10 am cdt/
monday...

.rest of tonight...northeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. patchy dense fog. waves 3 to 5 feet
occasionally to 7 feet subsiding to 1 to 3 feet. 
.monday...east winds 10 to 20 knots backing northeast in the
afternoon. patchy dense fog through early afternoon. a slight
chance of showers and thunderstorms by mid afternoon. waves 1 to
3 feet. 
.monday night...northeast winds 5 to 15 knots veering south late.
waves subsiding to calm to 2 feet. 
.tuesday...south winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...southwest winds 5 to 15 knots veering west after
midnight. a slight chance of showers and thunderstorms. waves
calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing southwest by mid
afternoon. a chance of showers. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots increasing to
10 to 20 knots after midnight. a chance of showers. waves calm to
2 feet. 
.thursday...northeast winds 10 to 20 knots increasing to 15 to
25 knots. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday...northeast winds 15 to 25 knots becoming east 10 to
20 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202509150800;;997038

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun sep 14 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 high over quebec rises to 30.3 inches by monday morning, 
keeping 30.1 to 30.2 inch ridging over lake superior through tuesday 
as it settles over new england. a 29.8 inch low moving through far 
northern ontario into the hudson bay area tuesday night brings 
troughing of 30.0 inches back to lake superior. troughing continues 
to deepen to 29.9 inches on wednesday and remains over the lake 
until a 30.4 inch high moving into hudson bay brings 30.1 inch 
ridging back over lake superior by thursday. ridging rises to 30.3 
inches on friday.



lsz263-150800-
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-
1001 pm edt sun sep 14 2025

.rest of tonight...east winds 5 to 15 knots veering southeast
after midnight. patchy fog. waves 2 to 4 feet subsiding to calm
to 2 feet. 
.monday...southeast winds 5 to 15 knots backing east in the
afternoon. patchy fog through early afternoon. waves calm to
2 feet. 
.monday night...east winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.tuesday...south winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...south winds 5 to 15 knots veering southwest
after midnight. a slight chance of showers and thunderstorms
after midnight. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...northeast winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 3 to 5 feet occasionally to 7 feet. 
.friday...east winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202509150800;;997039

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun sep 14 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 high over quebec rises to 30.3 inches by monday morning, 
keeping 30.1 to 30.2 inch ridging over lake superior through tuesday 
as it settles over new england. a 29.8 inch low moving through far 
northern ontario into the hudson bay area tuesday night brings 
troughing of 30.0 inches back to lake superior. troughing continues 
to deepen to 29.9 inches on wednesday and remains over the lake 
until a 30.4 inch high moving into hudson bay brings 30.1 inch 
ridging back over lake superior by thursday. ridging rises to 30.3 
inches on friday.



lsz264-150800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 pm edt sun sep 14 2025

.rest of tonight...southeast winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.monday...southeast winds 5 to 15 knots. patchy fog through early
afternoon. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.monday night...southeast winds 5 to 15 knots veering south after
midnight. waves subsiding to calm to 2 feet. 
.tuesday...south winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...south winds 5 to 15 knots veering southwest
after midnight. a slight chance of showers and thunderstorms
after midnight. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots. waves calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering northeast
after midnight. waves calm to 2 feet. 
.thursday...northeast winds 10 to 20 knots increasing to 15 to
25 knots. waves building to 1 to 3 feet, then subsiding to calm
to 2 feet. 
.friday...east winds 15 to 25 knots diminishing to 10 to
20 knots. waves subsiding to calm to 2 feet, then building to
1 to 3 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202509150800;;997040

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun sep 14 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 high over quebec rises to 30.3 inches by monday morning, 
keeping 30.1 to 30.2 inch ridging over lake superior through tuesday 
as it settles over new england. a 29.8 inch low moving through far 
northern ontario into the hudson bay area tuesday night brings 
troughing of 30.0 inches back to lake superior. troughing continues 
to deepen to 29.9 inches on wednesday and remains over the lake 
until a 30.4 inch high moving into hudson bay brings 30.1 inch 
ridging back over lake superior by thursday. ridging rises to 30.3 
inches on friday.



lsz265-150800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 pm edt sun sep 14 2025

.rest of tonight...southeast winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. patchy fog. waves calm to 2 feet. 
.monday...southeast winds 10 to 20 knots. patchy fog through
early afternoon. waves building to 1 to 3 feet. 
.monday night...southeast winds 10 to 20 knots veering south
after midnight. waves subsiding to calm to 2 feet. 
.tuesday...south winds 10 to 20 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots becoming southwest
5 to 15 knots after midnight. a slight chance of showers and
thunderstorms after midnight. waves calm to 2 feet. 
.wednesday...west winds 5 to 15 knots veering northeast by mid
afternoon. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots. a chance of
thunderstorms through midnight. a chance of showers. waves calm
to 2 feet. 
.thursday...northeast winds 10 to 20 knots. waves building to
1 to 3 feet. 
.friday...east winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202509150800;;997041

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun sep 14 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 high over quebec rises to 30.3 inches by monday morning, 
keeping 30.1 to 30.2 inch ridging over lake superior through tuesday 
as it settles over new england. a 29.8 inch low moving through far 
northern ontario into the hudson bay area tuesday night brings 
troughing of 30.0 inches back to lake superior. troughing continues 
to deepen to 29.9 inches on wednesday and remains over the lake 
until a 30.4 inch high moving into hudson bay brings 30.1 inch 
ridging back over lake superior by thursday. ridging rises to 30.3 
inches on friday.



lsz266-150800-
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-
1001 pm edt sun sep 14 2025

.rest of tonight...southeast winds 5 to 15 knots. patchy fog
after midnight. waves calm to 2 feet. 
.monday...southeast winds 10 to 20 knots. patchy fog through
early afternoon. waves building to 1 to 3 feet, then subsiding to
calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots veering south
after midnight. waves 1 to 3 feet. 
.tuesday...south winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.tuesday night...south winds 10 to 20 knots. a slight chance of
showers and thunderstorms after midnight. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots veering north by mid
afternoon. waves calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots. a chance of
thunderstorms through midnight. a chance of showers. waves calm
to 2 feet. 
.thursday...northeast winds 10 to 20 knots. waves building to
2 to 4 feet. 
.friday...east winds 10 to 20 knots. waves subsiding to calm to
2 feet, then building to 1 to 3 feet. 

$$

fzus63 kmqt 150201
glfls 
expires:202509150800;;997042

open lake forecast for lake superior
national weather service marquette mi
1001 pm edt sun sep 14 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 high over quebec rises to 30.3 inches by monday morning, 
keeping 30.1 to 30.2 inch ridging over lake superior through tuesday 
as it settles over new england. a 29.8 inch low moving through far 
northern ontario into the hudson bay area tuesday night brings 
troughing of 30.0 inches back to lake superior. troughing continues 
to deepen to 29.9 inches on wednesday and remains over the lake 
until a 30.4 inch high moving into hudson bay brings 30.1 inch 
ridging back over lake superior by thursday. ridging rises to 30.3 
inches on friday.



lsz267-150800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 pm edt sun sep 14 2025

.rest of tonight...southeast winds 10 to 20 knots. patchy fog
after midnight. waves calm to 2 feet. 
.monday...southeast winds 10 to 20 knots. patchy fog through
early afternoon. waves building to 1 to 3 feet, then subsiding to
calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots veering south
late. waves calm to 2 feet. 
.tuesday...south winds 10 to 20 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.tuesday night...south winds 10 to 20 knots. a slight chance of
showers and thunderstorms after midnight. waves calm to 2 feet. 
.wednesday...south winds 10 to 20 knots becoming north 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...northwest winds 5 to 15 knots becoming north
10 to 20 knots after midnight. a chance of thunderstorms through
midnight. a chance of showers. waves calm to 2 feet. 
.thursday...north winds 10 to 20 knots becoming northeast 15 to
25 knots. waves building to 2 to 4 feet. 
.friday...northeast winds 10 to 20 knots veering east. waves
subsiding to calm to 2 feet. 

$$