fzus63 kdtx 210859
glflh 
expires:202511211700;;242153

open lake forecast for lake huron
national weather service detroit/pontiac mi
359 am est fri nov 21 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 cold front, 29.90 inches, tracks across the
region early this morning, supporting moderate west-northwest 
winds through the day. high pressure, 30.10 inches, then slides 
across the central great lakes to close out the week.


lhz363-462-211700-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
359 am est fri nov 21 2025

.today...west winds 10 to 15 knots. waves 3 to 5 feet. 
.tonight...northwest winds 10 to 15 knots increasing to 15 to
20 knots late in the evening...then decreasing to 10 to 15 knots
after midnight. waves 4 to 6 feet. waves occasionally around
8 feet. 
.saturday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then backing
to the west early in the afternoon. waves 2 to 4 feet subsiding
to 1 to 3 feet early in the afternoon. 
.saturday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots in the late evening and overnight. waves 1 to
3 feet building to 3 to 5 feet in the late evening and overnight.
.sunday...west winds 15 to 20 knots decreasing to 5 to 10 knots.
waves 3 to 5 feet subsiding to 2 to 4 feet late in the evening. 
.monday...southwest winds 5 to 10 knots becoming south 10 to
15 knots until early morning. rain likely in the late evening and
early morning. waves 1 to 3 feet building to 2 to 4 feet in the
late evening and early morning. 
.tuesday...southeast winds 15 to 20 knots becoming south 10 to
15 knots until early morning. rain until afternoon...then rain
likely early in the evening. a chance of rain in the late evening
and early morning. waves 3 to 5 feet. 


$$

fzus63 kdtx 210859
glflh 
expires:202511211700;;242152

open lake forecast for lake huron
national weather service detroit/pontiac mi
359 am est fri nov 21 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 cold front, 29.90 inches, tracks across the
region early this morning, supporting moderate west-northwest 
winds through the day. high pressure, 30.10 inches, then slides 
across the central great lakes to close out the week.


lhz361-362-211700-
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-
359 am est fri nov 21 2025

.today...west winds 15 to 20 knots decreasing to 10 to 15 knots
late in the morning...then increasing to 15 to 20 knots in the
afternoon. a chance of rain in the morning. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.tonight...northwest winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.saturday...northwest winds 5 to 10 knots backing to the west
early in the afternoon. waves 2 to 4 feet subsiding to 1 to
3 feet in the late morning and afternoon. 
.saturday night...southwest winds 10 to 15 knots increasing to
15 to 20 knots after midnight. a chance of rain. waves 2 feet or
less building to 3 to 5 feet in the late evening and overnight. 
.sunday...west winds 15 to 20 knots decreasing to 5 to 10 knots.
waves 3 to 5 feet. 
.monday...west winds 5 to 10 knots backing to the south until
early evening...then increasing to 10 to 15 knots in the late
evening and early morning. a chance of rain until early morning.
waves 1 to 3 feet building to 2 to 4 feet in the late evening and
early morning. 
.tuesday...southeast winds 10 to 15 knots. rain until afternoon...
then rain likely until early morning. waves 3 to 5 feet. 


$$

fzus63 kmkx 210839
glflm 
expires:202511211615;;241452

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
239 am cst fri nov 21 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...

northwesterly winds continue through this evening as low pressure
of 29.5 inches lingers in the hudson bay and high pressure of 
30.1 inches builds into the northern plains. high pressure builds 
overhead overnight tonight into saturday, bringing light and 
variable winds. saturday afternoon, expect breezy southwest winds 
to develop as weak low pressure of 29.7 inches progresses through 
lake superior. winds shift northwesterly saturday night into 
sunday as this low pressure system exits to the east and a cold 
front pushes northwest to southeast across the lake. high pressure
returns sunday night into monday for an additional period of 
light and variable winds. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-211615-
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-
239 am cst fri nov 21 2025

sheboygan wi to pentwater mi south...

.today...northwest winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 2 to 4 ft. 
.tonight...north winds 10 to 15 kt diminishing to 5 to 10 kt.
waves 2 to 4 ft. 
.saturday...northwest winds 5 to 10 kt backing to southwest 10 to
15 kt late in the morning, then increasing to 10 to 20 kt early
in the afternoon becoming southwest 10 to 20 kt late. waves 1 to
3 ft. 
.saturday night...southwest winds 15 to 25 kt becoming west 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft. 
.sunday...northwest winds 10 to 20 kt becoming west 10 to 15 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.sunday night...southwest winds 5 to 10 kt becoming south 10 to
15 kt. waves 1 to 3 ft. 
.monday...south winds 10 to 20 kt. chance of rain. waves 2 to
4 ft. 
.tuesday...south winds 10 to 20 kt becoming southwest. rain
likely. waves 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 210839
glflm 
expires:202511211615;;241451

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
239 am cst fri nov 21 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...

northwesterly winds continue through this evening as low pressure
of 29.5 inches lingers in the hudson bay and high pressure of 
30.1 inches builds into the northern plains. high pressure builds 
overhead overnight tonight into saturday, bringing light and 
variable winds. saturday afternoon, expect breezy southwest winds 
to develop as weak low pressure of 29.7 inches progresses through 
lake superior. winds shift northwesterly saturday night into 
sunday as this low pressure system exits to the east and a cold 
front pushes northwest to southeast across the lake. high pressure
returns sunday night into monday for an additional period of 
light and variable winds. 


lmz261-362-364-366-563-565-567-868-211615-
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-
239 am cst fri nov 21 2025

sheboygan wi to pentwater mi north...

.today...northwest winds 10 to 20 kt. waves 2 to 4 ft. 
.tonight...northwest winds 10 to 20 kt diminishing to 5 to 10 kt.
waves 1 to 3 ft subsiding to 1 to 2 ft. 
.saturday...west winds 5 to 10 kt becoming southwest 10 to 15 kt
late in the morning, then increasing to 10 to 20 kt early in the
afternoon increasing to 15 to 25 kt late. waves 1 to 2 ft
building to 1 to 3 ft. 
.saturday night...southwest winds 15 to 25 kt becoming northwest.
waves 4 to 6 ft occasionally to 8 ft. 
.sunday...northwest winds 10 to 20 kt becoming west. waves 3 to
5 ft subsiding to 1 to 3 ft. 
.sunday night...southwest winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft. 
.monday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft building to 2 to 4 ft. 
.tuesday...south winds 10 to 20 kt becoming southwest. rain
likely. waves 3 to 5 ft.  

$$

fzus63 kmqt 210912
glfls 
expires:202511211715;;243735

open lake forecast for lake superior
national weather service marquette mi
412 am est fri nov 21 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...

weak ridging of around 30.1 inches pushes into lake superior today 
as the parent high pressure builds into the western great lakes the 
rest of today into this evening. the ridge then pushes east saturday 
as a 29.8 inch trough moves over lake superior saturday afternoon 
through saturday night. thereafter, a 30.1 inch high pressure 
rebuilds over the great lakes on sunday, sunday night, and even into 
monday ahead of a 29.7 low that arrives over or near lake 
superior by tuesday.



lsz265-211715-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
412 am est fri nov 21 2025

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

$$

fzus63 kmqt 210912
glfls 
expires:202511211715;;243736

open lake forecast for lake superior
national weather service marquette mi
412 am est fri nov 21 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...

weak ridging of around 30.1 inches pushes into lake superior today 
as the parent high pressure builds into the western great lakes the 
rest of today into this evening. the ridge then pushes east saturday 
as a 29.8 inch trough moves over lake superior saturday afternoon 
through saturday night. thereafter, a 30.1 inch high pressure 
rebuilds over the great lakes on sunday, sunday night, and even into 
monday ahead of a 29.7 low that arrives over or near lake 
superior by tuesday.



lsz266-211715-
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-
412 am est fri nov 21 2025

.early this morning...west winds 20 to 30 knots. a slight chance
of rain and snow showers. waves 4 to 7 feet occasionally to
9 feet. 
.today...west winds 20 to 30 knots veering northwest. a slight
chance of rain and snow showers in the morning. waves building to
4 to 8 feet occasionally to 10 feet. 
.tonight...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by midnight. waves subsiding to 1 to 3 feet. 
.saturday...southwest winds 10 to 20 knots increasing to 15 to
25 knots. a chance of rain showers, possibly mixed with snow in
the afternoon. waves subsiding to calm to 2 feet, then building
to 2 to 4 feet. 
.saturday night...west winds 15 to 25 knots becoming northwest
20 to 30 knots after midnight. a chance of rain showers in the
evening. waves building to 3 to 6 feet occasionally to 8 feet. 
.sunday...northwest winds 15 to 25 knots becoming west 10 to
20 knots in the afternoon. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.sunday night...west winds 10 to 20 knots. waves subsiding to
calm to 2 feet. 
.monday...south winds 10 to 20 knots backing southeast. a chance
of rain showers. waves building to 1 to 3 feet. 
.tuesday...southeast winds 15 to 25 knots becoming southwest
20 to 30 knots. rain showers. waves building to 6 to 9 feet
occasionally to 11 feet. 

$$

fzus63 kmqt 210912
glfls 
expires:202511211715;;243737

open lake forecast for lake superior
national weather service marquette mi
412 am est fri nov 21 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...

weak ridging of around 30.1 inches pushes into lake superior today 
as the parent high pressure builds into the western great lakes the 
rest of today into this evening. the ridge then pushes east saturday 
as a 29.8 inch trough moves over lake superior saturday afternoon 
through saturday night. thereafter, a 30.1 inch high pressure 
rebuilds over the great lakes on sunday, sunday night, and even into 
monday ahead of a 29.7 low that arrives over or near lake 
superior by tuesday.



lsz267-211715-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
412 am est fri nov 21 2025

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

$$

fzus63 kmqt 210912
glfls 
expires:202511211715;;243732

open lake forecast for lake superior
national weather service marquette mi
412 am est fri nov 21 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...

weak ridging of around 30.1 inches pushes into lake superior today 
as the parent high pressure builds into the western great lakes the 
rest of today into this evening. the ridge then pushes east saturday 
as a 29.8 inch trough moves over lake superior saturday afternoon 
through saturday night. thereafter, a 30.1 inch high pressure 
rebuilds over the great lakes on sunday, sunday night, and even into 
monday ahead of a 29.7 low that arrives over or near lake 
superior by tuesday.



lsz162-211715-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
412 am est fri nov 21 2025 /312 am cst fri nov 21 2025/

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

$$

fzus63 kmqt 210912
glfls 
expires:202511211715;;243733

open lake forecast for lake superior
national weather service marquette mi
412 am est fri nov 21 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...

weak ridging of around 30.1 inches pushes into lake superior today 
as the parent high pressure builds into the western great lakes the 
rest of today into this evening. the ridge then pushes east saturday 
as a 29.8 inch trough moves over lake superior saturday afternoon 
through saturday night. thereafter, a 30.1 inch high pressure 
rebuilds over the great lakes on sunday, sunday night, and even into 
monday ahead of a 29.7 low that arrives over or near lake 
superior by tuesday.



lsz263-211715-
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-
412 am est fri nov 21 2025

.early this morning...west winds 15 to 25 knots. waves 4 to
7 feet occasionally to 9 feet. 
.today...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.tonight...northwest winds 5 to 15 knots backing southwest late.
waves subsiding to calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots increasing to 10 to
20 knots by late morning, then veering west by mid afternoon. a
chance of rain and snow showers. waves building to 2 to 4 feet. 
.saturday night...west winds 10 to 20 knots veering northwest
after midnight. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.sunday...west winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.sunday night...west winds 5 to 15 knots backing southwest after
midnight. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots backing southeast. a chance
of rain showers. waves calm to 2 feet. 
.tuesday...southeast winds 20 to 30 knots becoming west gales to
35 knots. rain showers likely. waves building to 6 to 9 feet
occasionally to 11 feet. 

$$

fzus63 kmqt 210912
glfls 
expires:202511211715;;243734

open lake forecast for lake superior
national weather service marquette mi
412 am est fri nov 21 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...

weak ridging of around 30.1 inches pushes into lake superior today 
as the parent high pressure builds into the western great lakes the 
rest of today into this evening. the ridge then pushes east saturday 
as a 29.8 inch trough moves over lake superior saturday afternoon 
through saturday night. thereafter, a 30.1 inch high pressure 
rebuilds over the great lakes on sunday, sunday night, and even into 
monday ahead of a 29.7 low that arrives over or near lake 
superior by tuesday.



lsz264-211715-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
412 am est fri nov 21 2025

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

$$