fzus63 kdtx 271351
glflh 
expires:202607272200;;694722

open lake forecast for lake huron
national weather service detroit/pontiac mi
951 am edt mon jul 27 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 and variable winds through monday give way to
stronger northerly winds for tuesday, gusting 25 to 30 knots
south half. potential for strong to severe thunderstorms, mainly
monday afternoon and evening along and ahead of a cold front.


lhz361-272200-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
951 am edt mon jul 27 2026

.rest of today...southeast winds 5 to 10 knots backing to the
north late in the afternoon. a chance of showers late in the
morning...then a chance of showers and thunderstorms in the
afternoon. waves 2 feet or less. 
.tonight...north winds 5 to 10 knots early in the evening
becoming light and variable...then becoming north 5 to 10 knots
after midnight increasing to 10 to 15 knots. scattered showers
and a chance of thunderstorms in the evening...then scattered
showers after midnight. waves 2 feet or less. 
.tuesday...north winds 10 to 15 knots decreasing to 5 to 10 knots
early in the afternoon. waves 1 to 3 feet. 
.tuesday night...north winds 10 to 15 knots. waves 1 to 3 feet. 
.wednesday...north winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then backing to the northwest late
in the afternoon. waves 2 feet or less. 
.thursday...light and variable winds. waves 2 feet or less. 
.friday...light and variable winds becoming southwest 5 to
10 knots by midnight. waves 2 feet or less. 


$$

fzus63 kdtx 271351
glflh 
expires:202607272200;;694723

open lake forecast for lake huron
national weather service detroit/pontiac mi
951 am edt mon jul 27 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 and variable winds through monday give way to
stronger northerly winds for tuesday, gusting 25 to 30 knots
south half. potential for strong to severe thunderstorms, mainly
monday afternoon and evening along and ahead of a cold front.


lhz362-363-272200-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
951 am edt mon jul 27 2026

.rest of today...southeast winds 5 to 10 knots backing to the
east late in the afternoon. a chance of showers and thunderstorms
in the afternoon. waves 2 feet or less. 
.tonight...east winds 5 to 10 knots backing to the north in the
late evening and overnight. a chance of showers and thunderstorms
in the evening...then scattered showers after midnight. waves
2 feet or less. 
.tuesday...north winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and early afternoon...then
decreasing to 10 to 15 knots early in the afternoon. scattered
showers in the morning. waves 3 to 5 feet. 
.tuesday night...north winds 10 to 15 knots increasing to 15 to
20 knots in the late evening and overnight. waves 3 to 5 feet. 
.wednesday...north winds 15 to 20 knots becoming northwest 5 to
10 knots. waves 3 to 5 feet subsiding to 2 to 4 feet late in the
evening. 
.thursday...north winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.friday...light and variable winds becoming southeast 5 to
10 knots early in the evening...then becoming light and variable
by midnight. a chance of showers by midnight. waves 2 feet or
less. 


$$

fzus63 kdtx 271351
glflh 
expires:202607272200;;694724

open lake forecast for lake huron
national weather service detroit/pontiac mi
951 am edt mon jul 27 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 and variable winds through monday give way to
stronger northerly winds for tuesday, gusting 25 to 30 knots
south half. potential for strong to severe thunderstorms, mainly
monday afternoon and evening along and ahead of a cold front.


lhz462>464-272200-
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-
951 am edt mon jul 27 2026

.rest of today...light and variable winds becoming south 5 to
10 knots in the afternoon. a chance of thunderstorms in the
afternoon. waves 2 feet or less. 
.tonight...south winds 5 to 10 knots. numerous thunderstorms and
a chance of showers in the evening...then numerous showers and
scattered thunderstorms after midnight. waves 2 feet or less. 
.tuesday...north winds 10 to 15 knots increasing to 15 to
20 knots in the late morning and afternoon. scattered showers in
the morning. waves 3 to 5 feet building to 5 to 7 feet early in
the afternoon. waves occasionally around 10 feet. 
.tuesday night...north winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots after midnight. waves 5 to
7 feet. waves occasionally around 10 feet. 
.wednesday...north winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.thursday...north winds 5 to 10 knots becoming light and
variable. waves 1 to 3 feet. 
.friday...light and variable winds becoming south 5 to 10 knots .
a chance of showers by midnight. waves 2 feet or less. 


$$

fzus63 kmkx 271403
glflm 
expires:202607272115;;695201

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt mon jul 27 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...

severe storms are expected this morning and afternoon. very 
strong winds, and hail are possible with these storms. storms will
move north to south across the lake ahead of a cold front that
will progress north to south this afternoon hours. northerly 
winds are expected behind the front, with gusts around 30 kt 
expected. gusts to gale force cannot be ruled out as low pressure 
deepens to 29.5 inches over the eastern great lakes tuesday. winds
will remain northerly through wednesday as high pressure around 
30.0 inches builds into the northern great lakes, then will become
lighter and more variable into thursday and friday as high 
pressure builds overhead.


lmz261-362-364-366-563-565-567-868-272115-
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-
903 am cdt mon jul 27 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 15 to 25 kt becoming south.
patchy fog. chance of showers and slight chance of thunderstorms
late this morning, then showers likely with a chance of
thunderstorms this afternoon. waves 2 to 4 ft. 
.tonight...north winds 10 to 20 kt increasing to 30 kt. patchy
fog in the evening. chance of showers and thunderstorms in the
evening. waves 2 to 4 ft building to 4 to 7 ft occasionally to
9 ft. 
.tuesday...north winds to 30 kt. waves 4 to 7 ft occasionally to
9 ft. 
.tuesday night...north winds to 30 kt diminishing to 10 to 20 kt
overnight. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft. 
.wednesday...north winds 10 to 20 kt becoming northwest 15 to
25 kt. waves 1 to 3 ft. 
.wednesday night...south winds 10 to 20 kt diminishing to 5 to
10 kt. waves 1 to 3 ft subsiding to 1 ft or less. 
.thursday...south winds 10 to 15 kt. waves 1 ft or less. 
.friday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 271403
glflm 
expires:202607272115;;695202

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
903 am cdt mon jul 27 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...

severe storms are expected this morning and afternoon. very 
strong winds, and hail are possible with these storms. storms will
move north to south across the lake ahead of a cold front that
will progress north to south this afternoon hours. northerly 
winds are expected behind the front, with gusts around 30 kt 
expected. gusts to gale force cannot be ruled out as low pressure 
deepens to 29.5 inches over the eastern great lakes tuesday. winds
will remain northerly through wednesday as high pressure around 
30.0 inches builds into the northern great lakes, then will become
lighter and more variable into thursday and friday as high 
pressure builds overhead.


lmz080-669-671-673-675-777-779-870-872-874-876-878-272115-
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-
903 am cdt mon jul 27 2026

sheboygan wi to pentwater mi south...

.rest of today...south winds 15 to 25 kt. patchy fog late this
morning. chance of showers and thunderstorms. waves 3 to 5 ft. 
.tonight...southwest winds 15 to 25 kt veering to north to 30 kt.
chance of showers and slight chance of thunderstorms in the
evening. waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft. 
.tuesday...north winds to 30 kt. waves 7 to 10 ft occasionally to
13 ft. 
.tuesday night...north gales to 35 kt diminishing to 15 to 25 kt
overnight. waves 7 to 10 ft occasionally to 13 ft. 
.wednesday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft. 
.wednesday night...north winds 10 to 20 kt becoming northeast
5 to 10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.thursday...south winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.friday...southwest winds 10 to 15 kt becoming south. chance of
showers. waves 1 to 2 ft.  

$$

fzus63 kmqt 271401
glfls 
expires:202607272000;;695141

open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon jul 27 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 29.6 inch clipper low skims over far western lake superior this 
morning before departing east towards the mid-atlantic this evening 
through tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior on tuesday and remains until 
thursday morning. the ridging then gives way to weak troughing of 
29.9 inches before becoming weak ridging of 29.9 to 30.0 inches 
again the rest of this week.




lsz162-272000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1001 am edt mon jul 27 2026 /901 am cdt mon jul 27 2026/

...dense fog advisory in effect until noon edt /11 am cdt/
today...

.rest of today...northeast winds 10 to 20 knots diminishing to
5 to 15 knots late. patchy fog. a slight chance of thunderstorms
by late morning. a slight chance of showers. waves calm to 2 feet
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.tonight...north winds 5 to 15 knots diminishing to less than
10 knots after midnight. patchy fog. waves calm to 2 feet. 
.tuesday...north winds less than 10 knots veering south in the
afternoon, then becoming east 5 to 15 knots late. patchy fog
through early afternoon. waves calm to 2 feet. 
.tuesday night...northeast winds 5 to 15 knots becoming north
less than 10 knots after midnight. waves calm to 2 feet. 
.wednesday...north winds less than 10 knots becoming east 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots diminishing to
less than 10 knots after midnight. waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots veering west. a chance
of showers and thunderstorms. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots veering north. waves calm to
2 feet. 

$$

fzus63 kmqt 271401
glfls 
expires:202607272000;;695142

open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon jul 27 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 29.6 inch clipper low skims over far western lake superior this 
morning before departing east towards the mid-atlantic this evening 
through tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior on tuesday and remains until 
thursday morning. the ridging then gives way to weak troughing of 
29.9 inches before becoming weak ridging of 29.9 to 30.0 inches 
again the rest of this week.




lsz263-272000-
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 am edt mon jul 27 2026

...dense fog advisory in effect until noon edt today...

.rest of today...northeast winds 10 to 20 knots. patchy fog. a
slight chance of thunderstorms by late morning. a chance of
showers. waves calm to 2 feet building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.tonight...north winds 5 to 15 knots diminishing to less than
10 knots late. patchy fog. waves calm to 2 feet. 
.tuesday...northeast winds less than 10 knots becoming south 5 to
15 knots in the afternoon. patchy fog through early afternoon.
waves calm to 2 feet. 
.tuesday night...east winds less than 10 knots veering south
after midnight. waves calm to 2 feet. 
.wednesday...south winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.wednesday night...east winds less than 10 knots veering south
after midnight. waves calm to 2 feet. 
.thursday...southwest winds 5 to 15 knots veering west. a chance
of showers. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots veering northwest. waves calm
to 2 feet. 

$$

fzus63 kmqt 271401
glfls 
expires:202607272000;;695143

open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon jul 27 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 29.6 inch clipper low skims over far western lake superior this 
morning before departing east towards the mid-atlantic this evening 
through tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior on tuesday and remains until 
thursday morning. the ridging then gives way to weak troughing of 
29.9 inches before becoming weak ridging of 29.9 to 30.0 inches 
again the rest of this week.




lsz264-272000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1001 am edt mon jul 27 2026

...dense fog advisory in effect until noon edt today...

.rest of today...northeast winds 5 to 15 knots backing north
late. patchy dense fog. a slight chance of thunderstorms by late
morning. a chance of showers. waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots veering north after
midnight. patchy fog. waves calm to 2 feet. 
.tuesday...north winds 5 to 15 knots becoming northwest less than
10 knots in the afternoon, then backing southwest late. patchy
dense fog through early afternoon. waves calm to 2 feet. 
.tuesday night...southwest winds less than 10 knots backing south
after midnight. waves calm to 2 feet. 
.wednesday...south winds less than 10 knots becoming southeast
5 to 15 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...southeast winds 5 to 15 knots becoming south
less than 10 knots after midnight. waves calm to 2 feet. 
.thursday...south winds less than 10 knots becoming west 5 to
15 knots. a chance of showers. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 271401
glfls 
expires:202607272000;;695144

open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon jul 27 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 29.6 inch clipper low skims over far western lake superior this 
morning before departing east towards the mid-atlantic this evening 
through tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior on tuesday and remains until 
thursday morning. the ridging then gives way to weak troughing of 
29.9 inches before becoming weak ridging of 29.9 to 30.0 inches 
again the rest of this week.




lsz265-272000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1001 am edt mon jul 27 2026

.rest of today...northeast winds 10 to 20 knots backing north
late. patchy fog. a chance of showers by late morning. a chance
of thunderstorms. showers likely by mid afternoon. waves calm to
2 feet. 
.tonight...northwest winds 10 to 20 knots veering north late.
waves building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.tuesday...north winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...west winds 5 to 15 knots backing southeast after
midnight. waves calm to 2 feet. 
.wednesday...southeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.wednesday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.thursday...southeast winds 5 to 15 knots veering west. waves
calm to 2 feet. 
.friday...west winds 5 to 15 knots backing east. waves calm to
2 feet. 

$$

fzus63 kmqt 271401
glfls 
expires:202607272000;;695145

open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon jul 27 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 29.6 inch clipper low skims over far western lake superior this 
morning before departing east towards the mid-atlantic this evening 
through tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior on tuesday and remains until 
thursday morning. the ridging then gives way to weak troughing of 
29.9 inches before becoming weak ridging of 29.9 to 30.0 inches 
again the rest of this week.




lsz266-272000-
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 am edt mon jul 27 2026

...dense fog advisory in effect until noon edt today...

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

$$

fzus63 kmqt 271401
glfls 
expires:202607272000;;695146

open lake forecast for lake superior
national weather service marquette mi
1001 am edt mon jul 27 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 29.6 inch clipper low skims over far western lake superior this 
morning before departing east towards the mid-atlantic this evening 
through tuesday. behind the clipper, weak ridging of 29.9 to 30.0 
inches returns to lake superior on tuesday and remains until 
thursday morning. the ridging then gives way to weak troughing of 
29.9 inches before becoming weak ridging of 29.9 to 30.0 inches 
again the rest of this week.




lsz267-272000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1001 am edt mon jul 27 2026

...dense fog advisory in effect until noon edt today...

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

$$