fzus63 kdtx 070753
glflh 
expires:202605071600;;152543

open lake forecast for lake huron
national weather service detroit/pontiac mi
353 am edt thu may 7 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...light winds over the next several days as broad high
pressure builds into the ohio valley and southern great lakes.


lhz361-362-071600-
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-
353 am edt thu may 7 2026

.today...west winds 5 to 10 knots backing to the east late in the
afternoon. waves 1 to 3 feet. 
.tonight...south winds 5 to 10 knots veering to the southwest
early in the morning. waves 1 to 3 feet. 
.friday...southwest winds 5 to 10 knots backing to the southeast
early in the afternoon. waves 2 feet or less. 
.friday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots after midnight. waves 1 to 3 feet. 
.saturday...south winds 10 to 15 knots increasing to 15 to
20 knots late in the morning...then veering to the west late in
the afternoon. a chance of showers in the morning...then showers
likely late in the morning. waves 2 to 4 feet. 
.sunday...west winds 10 to 15 knots becoming northwest 15 to
20 knots . waves 1 to 3 feet building to 3 to 5 feet . 
.monday...northwest winds 10 to 15 knots. waves 3 to 5 feet. 


$$

fzus63 kdtx 070753
glflh 
expires:202605071600;;152544

open lake forecast for lake huron
national weather service detroit/pontiac mi
353 am edt thu may 7 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...light winds over the next several days as broad high
pressure builds into the ohio valley and southern great lakes.


lhz363-462>464-071600-
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-
353 am edt thu may 7 2026

.today...light and variable winds becoming north 5 to 10 knots
late in the afternoon. waves 2 feet or less. 
.tonight...light and variable winds becoming south 5 to 10 knots
late in the evening...then becoming light and variable after
midnight becoming southwest 5 to 10 knots early in the morning.
waves 2 feet or less. 
.friday...southwest winds 5 to 10 knots backing to the south
early in the afternoon. waves 2 feet or less. 
.friday night...south winds 5 to 10 knots. waves 2 feet or less. 
.saturday...south winds 10 to 15 knots increasing to 15 to
20 knots late in the morning...then becoming southwest 10 to
15 knots late in the afternoon veering to the northwest late in
the evening. showers likely late in the morning. waves 2 to
4 feet subsiding to 1 to 3 feet late in the evening. 
.sunday...west winds 5 to 10 knots veering to the north early in
the evening...then backing to the northwest by midnight. waves
2 feet or less building to 4 to 6 feet by midnight. waves
occasionally around 8 feet. 
.monday...northwest winds 10 to 15 knots. waves 3 to 5 feet
subsiding to 1 to 3 feet by midnight. 


$$

fzus63 kmkx 070749
glflm 
expires:202605071530;;152536

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 am cdt thu may 7 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...

south to southwesterly winds will develop for today and continue 
through saturday as the high pressure of around 30.0 inches 
slides further southeast across the lower mississippi river 
valley. however, winds will then increase ahead of a developing 
low pressure around 29.5 inches tracking north of the great lakes 
into quebec for saturday before dragging a cold front southward 
across lake michigan later in the day. winds shift to the north- 
northwest behind the front for sunday while high pressure around 
30.2 inches builds down across the region into the start of next 
week.


lmz261-362-364-366-563-565-567-868-071530-
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-
249 am cdt thu may 7 2026

sheboygan wi to pentwater mi north...

.today...west winds 5 to 10 kt becoming southwest 10 to 15 kt
late this morning, then increasing to 10 to 20 kt early this
afternoon becoming southwest 10 to 20 kt late. waves 1 to 2 ft. 
.tonight...southwest winds 10 to 20 kt diminishing to 5 to 10 kt.
slight chance of rain showers in the evening. waves 1 to 3 ft. 
.friday...southwest winds 5 to 10 kt increasing to 10 to 15 kt
late in the morning, then becoming south 10 to 20 kt in the
afternoon. waves 2 to 4 ft. 
.friday night...south winds 10 to 20 kt becoming southwest 15 to
25 kt. waves 3 to 5 ft. 
.saturday...southwest winds 10 to 20 kt. chance of rain showers.
waves 3 to 5 ft. 
.saturday night...northwest winds 10 to 15 kt becoming north 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.sunday...northwest winds 10 to 15 kt becoming north 10 to 20 kt.
waves 1 to 3 ft. 
.monday...northwest winds 10 to 15 kt backing to southwest 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 070749
glflm 
expires:202605071530;;152537

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 am cdt thu may 7 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...

south to southwesterly winds will develop for today and continue 
through saturday as the high pressure of around 30.0 inches 
slides further southeast across the lower mississippi river 
valley. however, winds will then increase ahead of a developing 
low pressure around 29.5 inches tracking north of the great lakes 
into quebec for saturday before dragging a cold front southward 
across lake michigan later in the day. winds shift to the north- 
northwest behind the front for sunday while high pressure around 
30.2 inches builds down across the region into the start of next 
week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-071530-
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-
249 am cdt thu may 7 2026

sheboygan wi to pentwater mi south...

.today...west winds 5 to 10 kt backing to south 10 to 15 kt.
slight chance of rain showers this afternoon. waves 1 to 2 ft. 
.tonight...south winds 10 to 15 kt becoming southwest 5 to 10 kt.
slight chance of rain showers in the evening. waves 1 to 2 ft. 
.friday...southwest winds 5 to 10 kt becoming south. waves 1 to
3 ft. 
.friday night...south winds 10 to 20 kt becoming southwest. waves
3 to 5 ft. 
.saturday...southwest winds 10 to 20 kt. waves 3 to 5 ft. 
.saturday night...northwest winds 10 to 15 kt becoming north 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.sunday...north winds 10 to 15 kt increasing to 15 to 25 kt.
waves 1 to 2 ft. 
.monday...north winds 10 to 15 kt becoming northeast 10 to 20 kt.
waves 1 to 3 ft.  

$$

fzus63 kmqt 070801
glfls 
expires:202605072000;;152794

open lake forecast for lake superior
national weather service marquette mi
401 am edt thu may 7 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... 

weak 29.9 inch ridging over lake superior this morning weakens to 
29.8 inches by this evening as the area becomes sandwiched among a 
29.4 inch low over hudson bay, a 29.4 inch low moving over labrador, 
a low of 29.8 inches over the black hills, a high of 30.1 inches 
over southern oklahoma, and a weakening 29.9 inch high over the 
saskatchewan/manitoba line. the hudson bay and black hills lows work 
to pass a 29.6 inch trough over lake superior by friday, with this 
troughing eventually consolidating into a 29.5 inch low over lake 
superior by saturday morning. the low then lifts into ontario 
through the day on saturday as high pressure ridging begins to push 
back into the region from the canadian prairies. the high pressure 
builds back up to 30.1 inches over lake superior by sunday as the 
parent high strengthens over the canadian prairies and northern 
plains. the parent high eventually tracks over the upper great lakes 
at 30.3 inches on monday.



lsz162-072000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt thu may 7 2026 /301 am cdt thu may 7 2026/

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 10 to 20 knots becoming southwest 5 to
15 knots in the afternoon. a chance of rain showers by mid
afternoon. waves building to 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight. waves subsiding to calm to 2 feet. 
.friday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then diminishing to 5 to 15 knots
late. sprinkles by mid afternoon. waves building to 1 to 3 feet,
then subsiding to calm to 2 feet. 
.friday night...northwest winds 5 to 15 knots backing west after
midnight. a slight chance of rain showers after midnight. waves
calm to 2 feet. 
.saturday...west winds 10 to 20 knots veering northwest by mid
afternoon. waves calm to 2 feet. 
.saturday night...northwest winds 10 to 20 knots. waves calm to
2 feet. 
.sunday...west winds 5 to 15 knots veering north. waves calm to
2 feet. 
.monday...south winds 5 to 15 knots backing east. waves calm to
2 feet. 

$$

fzus63 kmqt 070801
glfls 
expires:202605072000;;152795

open lake forecast for lake superior
national weather service marquette mi
401 am edt thu may 7 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... 

weak 29.9 inch ridging over lake superior this morning weakens to 
29.8 inches by this evening as the area becomes sandwiched among a 
29.4 inch low over hudson bay, a 29.4 inch low moving over labrador, 
a low of 29.8 inches over the black hills, a high of 30.1 inches 
over southern oklahoma, and a weakening 29.9 inch high over the 
saskatchewan/manitoba line. the hudson bay and black hills lows work 
to pass a 29.6 inch trough over lake superior by friday, with this 
troughing eventually consolidating into a 29.5 inch low over lake 
superior by saturday morning. the low then lifts into ontario 
through the day on saturday as high pressure ridging begins to push 
back into the region from the canadian prairies. the high pressure 
builds back up to 30.1 inches over lake superior by sunday as the 
parent high strengthens over the canadian prairies and northern 
plains. the parent high eventually tracks over the upper great lakes 
at 30.3 inches on monday.



lsz263-072000-
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-
401 am edt thu may 7 2026

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 5 to 15 knots increasing to 10 to 20 knots in
the afternoon, then backing southwest late. a chance of rain
showers by mid afternoon. waves building to 1 to 3 feet. 
.tonight...southwest winds 5 to 15 knots veering west after
midnight, then backing southwest late. waves subsiding to calm to
2 feet. 
.friday...southwest winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon. waves building to 2 to 4 feet, then
subsiding to 1 to 3 feet. 
.friday night...southwest winds 5 to 15 knots veering west after
midnight. a slight chance of rain showers after midnight. waves
subsiding to calm to 2 feet. 
.saturday...west winds 5 to 15 knots. waves building to 1 to
3 feet. 
.saturday night...northwest winds 5 to 15 knots. waves 1 to
3 feet. 
.sunday...west winds 5 to 15 knots veering northwest. waves
subsiding to calm to 2 feet. 
.monday...south winds 5 to 15 knots backing southeast. waves calm
to 2 feet. 

$$

fzus63 kmqt 070801
glfls 
expires:202605072000;;152796

open lake forecast for lake superior
national weather service marquette mi
401 am edt thu may 7 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... 

weak 29.9 inch ridging over lake superior this morning weakens to 
29.8 inches by this evening as the area becomes sandwiched among a 
29.4 inch low over hudson bay, a 29.4 inch low moving over labrador, 
a low of 29.8 inches over the black hills, a high of 30.1 inches 
over southern oklahoma, and a weakening 29.9 inch high over the 
saskatchewan/manitoba line. the hudson bay and black hills lows work 
to pass a 29.6 inch trough over lake superior by friday, with this 
troughing eventually consolidating into a 29.5 inch low over lake 
superior by saturday morning. the low then lifts into ontario 
through the day on saturday as high pressure ridging begins to push 
back into the region from the canadian prairies. the high pressure 
builds back up to 30.1 inches over lake superior by sunday as the 
parent high strengthens over the canadian prairies and northern 
plains. the parent high eventually tracks over the upper great lakes 
at 30.3 inches on monday.



lsz264-072000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am edt thu may 7 2026

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 5 to 15 knots backing southwest late. a
chance of rain showers by mid afternoon. waves building to 1 to
3 feet. 
.tonight...southwest winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 
.friday...west winds 5 to 15 knots backing southwest in the
afternoon, then increasing to 10 to 20 knots late. waves building
to 1 to 3 feet. 
.friday night...southwest winds 5 to 15 knots veering west after
midnight. a slight chance of rain showers after midnight. waves
subsiding to calm to 2 feet. 
.saturday...northwest winds 5 to 15 knots. waves building to 1 to
3 feet. 
.saturday night...northwest winds 5 to 15 knots. waves 1 to
3 feet. 
.sunday...northwest winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 
.monday...northwest winds 5 to 15 knots backing south. waves calm
to 2 feet. 

$$

fzus63 kmqt 070801
glfls 
expires:202605072000;;152797

open lake forecast for lake superior
national weather service marquette mi
401 am edt thu may 7 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... 

weak 29.9 inch ridging over lake superior this morning weakens to 
29.8 inches by this evening as the area becomes sandwiched among a 
29.4 inch low over hudson bay, a 29.4 inch low moving over labrador, 
a low of 29.8 inches over the black hills, a high of 30.1 inches 
over southern oklahoma, and a weakening 29.9 inch high over the 
saskatchewan/manitoba line. the hudson bay and black hills lows work 
to pass a 29.6 inch trough over lake superior by friday, with this 
troughing eventually consolidating into a 29.5 inch low over lake 
superior by saturday morning. the low then lifts into ontario 
through the day on saturday as high pressure ridging begins to push 
back into the region from the canadian prairies. the high pressure 
builds back up to 30.1 inches over lake superior by sunday as the 
parent high strengthens over the canadian prairies and northern 
plains. the parent high eventually tracks over the upper great lakes 
at 30.3 inches on monday.



lsz265-072000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt thu may 7 2026

.early this morning...west winds 10 to 20 knots. waves calm to
2 feet. 
.today...west winds 10 to 20 knots. sprinkles and flurries
through early afternoon. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots becoming southwest 10 to
20 knots after midnight. waves calm to 2 feet. 
.friday...southwest winds 10 to 20 knots backing south late.
waves calm to 2 feet. 
.friday night...south winds 10 to 20 knots veering southwest
after midnight. a slight chance of rain showers after midnight.
waves calm to 2 feet. 
.saturday...west winds 15 to 25 knots veering northwest by mid
afternoon. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.saturday night...northwest winds 10 to 20 knots becoming west
15 to 25 knots after midnight. waves subsiding to calm to 2 feet,
then building to 1 to 3 feet. 
.sunday...northwest winds 10 to 20 knots. waves subsiding to calm
to 2 feet. 
.monday...northwest winds 5 to 15 knots backing southeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 070801
glfls 
expires:202605072000;;152798

open lake forecast for lake superior
national weather service marquette mi
401 am edt thu may 7 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... 

weak 29.9 inch ridging over lake superior this morning weakens to 
29.8 inches by this evening as the area becomes sandwiched among a 
29.4 inch low over hudson bay, a 29.4 inch low moving over labrador, 
a low of 29.8 inches over the black hills, a high of 30.1 inches 
over southern oklahoma, and a weakening 29.9 inch high over the 
saskatchewan/manitoba line. the hudson bay and black hills lows work 
to pass a 29.6 inch trough over lake superior by friday, with this 
troughing eventually consolidating into a 29.5 inch low over lake 
superior by saturday morning. the low then lifts into ontario 
through the day on saturday as high pressure ridging begins to push 
back into the region from the canadian prairies. the high pressure 
builds back up to 30.1 inches over lake superior by sunday as the 
parent high strengthens over the canadian prairies and northern 
plains. the parent high eventually tracks over the upper great lakes 
at 30.3 inches on monday.



lsz266-072000-
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-
401 am edt thu may 7 2026

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

$$

fzus63 kmqt 070801
glfls 
expires:202605072000;;152799

open lake forecast for lake superior
national weather service marquette mi
401 am edt thu may 7 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... 

weak 29.9 inch ridging over lake superior this morning weakens to 
29.8 inches by this evening as the area becomes sandwiched among a 
29.4 inch low over hudson bay, a 29.4 inch low moving over labrador, 
a low of 29.8 inches over the black hills, a high of 30.1 inches 
over southern oklahoma, and a weakening 29.9 inch high over the 
saskatchewan/manitoba line. the hudson bay and black hills lows work 
to pass a 29.6 inch trough over lake superior by friday, with this 
troughing eventually consolidating into a 29.5 inch low over lake 
superior by saturday morning. the low then lifts into ontario 
through the day on saturday as high pressure ridging begins to push 
back into the region from the canadian prairies. the high pressure 
builds back up to 30.1 inches over lake superior by sunday as the 
parent high strengthens over the canadian prairies and northern 
plains. the parent high eventually tracks over the upper great lakes 
at 30.3 inches on monday.



lsz267-072000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am edt thu may 7 2026

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

$$