fzus63 kdtx 271947
glflh 
expires:202607280400;;710783

open lake forecast for lake huron
national weather service detroit/pontiac mi
347 pm 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...a low pressure system tracks through the region this
evening, pulling a cold front southward overnight into tuesday
morning. the low will stall near the eastern great lakes while
high pressure builds into the western great lakes tuesday into
thursday. this maintains a period of moderate northerly flow
through midweek.


lhz361-280400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
347 pm edt mon jul 27 2026

.tonight...light and variable winds becoming north 10 to
15 knots. a chance of showers and thunderstorms in the evening.
waves 2 feet or less. 
.tuesday...north winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet in the afternoon. 
.tuesday night...northwest winds 10 to 15 knots. waves 2 to
4 feet subsiding to 1 to 3 feet after midnight. 
.wednesday...north winds 10 to 15 knots becoming northwest 5 to
10 knots in the late morning and afternoon. waves 1 to 3 feet. 
.wednesday night...west winds 10 to 15 knots becoming north 5 to
10 knots in the late evening and overnight. waves 2 feet or less.
.thursday...light and variable winds. waves 2 feet or less. 
.friday...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. a chance of showers. waves
2 feet or less. 


$$

fzus63 kdtx 271947
glflh 
expires:202607280400;;710785

open lake forecast for lake huron
national weather service detroit/pontiac mi
347 pm 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...a low pressure system tracks through the region this
evening, pulling a cold front southward overnight into tuesday
morning. the low will stall near the eastern great lakes while
high pressure builds into the western great lakes tuesday into
thursday. this maintains a period of moderate northerly flow
through midweek.


lhz462>464-280400-
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-
347 pm edt mon jul 27 2026

.tonight...south winds 5 to 10 knots becoming north 10 to
15 knots early in the morning. a chance of showers and
thunderstorms in the evening...then showers after midnight. waves
2 feet or less building to 2 to 4 feet early in the morning. 
.tuesday...north winds 15 to 20 knots increasing to 20 to
25 knots with gusts to around 30 knots in the late morning and
afternoon. waves 6 to 9 feet building to 8 to 12 feet late in the
afternoon. waves occasionally around 15 feet. 
.tuesday night...north winds 20 to 25 knots decreasing to 15 to
20 knots in the late evening and overnight. gusts to 30 knots.
waves 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday...north winds 20 to 25 knots with gusts to around
30 knots. waves 6 to 9 feet. waves occasionally around 12 feet. 
.wednesday night...north winds 15 to 20 knots with gusts to
around 30 knots decreasing to 10 to 15 knots in the late evening
and overnight. waves 4 to 6 feet. waves occasionally around
8 feet. 
.thursday...north winds 5 to 10 knots in the morning increasing
to 10 to 15 knots...then decreasing to 5 to 10 knots late in the
afternoon becoming light and variable. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.friday...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds becoming east 5 to 10 knots
early in the evening...then becoming light and variable by
midnight. a chance of showers . waves 2 feet or less. 


$$

fzus63 kdtx 271947
glflh 
expires:202607280400;;710784

open lake forecast for lake huron
national weather service detroit/pontiac mi
347 pm 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...a low pressure system tracks through the region this
evening, pulling a cold front southward overnight into tuesday
morning. the low will stall near the eastern great lakes while
high pressure builds into the western great lakes tuesday into
thursday. this maintains a period of moderate northerly flow
through midweek.


lhz362-363-280400-
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-
347 pm edt mon jul 27 2026

.tonight...southeast winds 5 to 10 knots veering to the west
after midnight...then becoming west 5 to 10 knots early in the
morning. a chance of showers and thunderstorms in the evening...
then a chance of thunderstorms after midnight. waves 2 feet or
less building to 2 to 4 feet early in the morning. 
.tuesday...north winds 10 to 15 knots increasing to 15 to
20 knots with gusts to around 30 knots in the late morning and
afternoon. waves 5 to 7 feet. waves occasionally around 10 feet. 
.tuesday night...north winds 15 to 20 knots. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.wednesday...north winds 15 to 20 knots becoming northwest 10 to
15 knots early in the afternoon. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.wednesday night...north winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet after midnight. 
.thursday...north winds 5 to 10 knots becoming light and
variable. waves 2 feet or less. 
.friday...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. a chance of showers . waves
2 feet or less. 


$$

fzus63 kmkx 271941
glflm 
expires:202607280330;;710608

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
241 pm 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 will end later this afternoon over far southern lake
michigan. otherwise low pressure around 29.5 inches over central
wisconsin will move to the lower great lakes for tuesday morning.
its cold front will move north to south across lake michigan
during the evening. northerly winds are expected to gust around 
30 kt over central and southern lake michigan tonight through
tuesday. much lighter northerly winds are then expected late
tuesday night into wednesday as high pressure around 30.0 inches 
builds into the northern great lakes. the high will maintain light
winds for thursday and friday as well. 


lmz261-362-364-366-868-280330-
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 pentwater to manistee mi 5 nm offshore to mid
lake-
241 pm cdt mon jul 27 2026

rock island passage to charlevoix mi north...

.tonight...north winds 10 to 20 kt increasing to 30 kt. isolated
showers and thunderstorms this evening. waves 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 15 to 25 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.wednesday...north winds 10 to 20 kt becoming northwest 15 to
25 kt. waves 1 to 3 ft. 
.wednesday night...southwest winds 10 to 20 kt becoming south
5 to 10 kt overnight. waves 1 to 3 ft subsiding to 1 ft or less. 
.thursday...south winds 10 to 15 kt becoming southwest. waves
1 ft or less. 
.thursday night...south winds 10 to 15 kt becoming southwest 5 to
10 kt. waves 1 to 2 ft. 
.friday...southwest winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers. waves 1 to 2 ft. 
.saturday...north winds 10 to 15 kt increasing to 10 to 20 kt.
chance of showers. waves 1 to 2 ft.  

$$

fzus63 kmkx 271941
glflm 
expires:202607280330;;710609

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
241 pm 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 will end later this afternoon over far southern lake
michigan. otherwise low pressure around 29.5 inches over central
wisconsin will move to the lower great lakes for tuesday morning.
its cold front will move north to south across lake michigan
during the evening. northerly winds are expected to gust around 
30 kt over central and southern lake michigan tonight through
tuesday. much lighter northerly winds are then expected late
tuesday night into wednesday as high pressure around 30.0 inches 
builds into the northern great lakes. the high will maintain light
winds for thursday and friday as well. 


lmz563-565-567-280330-
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-
241 pm cdt mon jul 27 2026

rock island passage to charlevoix mi south to sheboygan wi to
pentwater mi...

...severe thunderstorm watch 519 in effect until 3 pm cdt this
afternoon...

.tonight...north winds 10 to 20 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft. 
.tuesday...north winds to 30 kt diminishing to 15 to 25 kt. waves
4 to 7 ft occasionally to 9 ft. 
.tuesday night...north winds 15 to 25 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.wednesday...north winds 10 to 15 kt becoming northeast. waves
1 to 2 ft. 
.wednesday night...southeast winds 5 to 10 kt becoming south.
waves 1 ft or less. 
.thursday...southwest winds 5 to 10 kt becoming south 10 to
15 kt. waves 1 ft or less. 
.thursday night...south winds 10 to 15 kt becoming southwest 5 to
10 kt. waves 1 to 2 ft. 
.friday...southwest winds 5 to 10 kt becoming south. chance of
showers. waves 1 to 2 ft. 
.saturday...north winds 5 to 10 kt becoming northeast 10 to
15 kt. chance of showers. waves 1 to 2 ft.  

$$

fzus63 kmkx 271941
glflm 
expires:202607280330;;710610

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
241 pm 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 will end later this afternoon over far southern lake
michigan. otherwise low pressure around 29.5 inches over central
wisconsin will move to the lower great lakes for tuesday morning.
its cold front will move north to south across lake michigan
during the evening. northerly winds are expected to gust around 
30 kt over central and southern lake michigan tonight through
tuesday. much lighter northerly winds are then expected late
tuesday night into wednesday as high pressure around 30.0 inches 
builds into the northern great lakes. the high will maintain light
winds for thursday and friday as well. 


lmz671-673-675-280330-
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-
241 pm cdt mon jul 27 2026

port washington wi to whitehall mi south to winthrop harbor il to
south haven mi...

...severe thunderstorm watch 520 in effect until 7 pm cdt this
evening...

.tonight...southwest winds 15 to 25 kt veering to northwest to
30 kt late this evening, then becoming north after midnight
becoming north to 30 kt late. scattered showers with isolated
thunderstorms this evening. waves 4 to 6 ft occasionally to 8 ft 
building to 6 to 9 ft occasionally to 12 ft.
.tuesday...north winds to 30 kt. waves 6 to 9 ft occasionally to
12 ft. 
.tuesday night...north winds to 30 kt diminishing to 10 to 15 kt.
waves 6 to 9 ft occasionally to 12 ft subsiding to 3 to 5 ft. 
.wednesday...north winds 10 to 15 kt. waves 2 to 4 ft. 
.wednesday night...north winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 3 ft. 
.thursday...southwest winds 5 to 10 kt becoming south. waves 1 to
2 ft. 
.thursday night...south winds 10 to 15 kt becoming southwest 5 to
10 kt. waves 1 to 2 ft. 
.friday...southwest winds 5 to 10 kt becoming south. waves 1 to
2 ft. 
.saturday...northwest winds 5 to 10 kt becoming north 10 to
15 kt. chance of showers. waves 1 to 2 ft.  

$$

fzus63 kmkx 271941
glflm 
expires:202607280330;;710611

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
241 pm 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 will end later this afternoon over far southern lake
michigan. otherwise low pressure around 29.5 inches over central
wisconsin will move to the lower great lakes for tuesday morning.
its cold front will move north to south across lake michigan
during the evening. northerly winds are expected to gust around 
30 kt over central and southern lake michigan tonight through
tuesday. much lighter northerly winds are then expected late
tuesday night into wednesday as high pressure around 30.0 inches 
builds into the northern great lakes. the high will maintain light
winds for thursday and friday as well. 


lmz080-669-777-779-870-872-874-876-878-280330-
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 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-
241 pm cdt mon jul 27 2026

sheboygan wi to pentwater mi south...

.tonight...southwest winds 15 to 25 kt veering to north to 30 kt.
scattered showers and thunderstorms this evening. waves 4 to 6 ft
occasionally to 8 ft building to 6 to 9 ft occasionally to 12 ft.
.tuesday...north winds to 30 kt. waves 6 to 9 ft occasionally to
12 ft. 
.tuesday night...north winds to 30 kt diminishing to 10 to 15 kt.
waves 7 to 10 ft occasionally to 13 ft subsiding to 3 to 5 ft. 
.wednesday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft. 
.wednesday night...north winds 10 to 20 kt becoming northeast
5 to 10 kt overnight. 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. 
.thursday night...south winds 10 to 15 kt becoming southwest 5 to
10 kt. waves 1 to 2 ft. 
.friday...southwest winds 10 to 15 kt. waves 1 to 2 ft. 
.saturday...northwest winds 10 to 15 kt increasing to 10 to
20 kt. chance of showers. waves 1 to 2 ft.  

$$

fzus63 kmkx 271654
glflm 
expires:202607280300;;701385

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1153 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.


lmz080-669-671-673-675-777-779-870-872-874-876-878-280300-
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-
1154 am cdt mon jul 27 2026

sheboygan wi to pentwater mi south...

...severe thunderstorm watch 520 in effect until 7 pm cdt this
evening...

.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 kmkx 271654
glflm 
expires:202607280300;;701384

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1153 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.


lmz868-280300-
lake michigan from pentwater to manistee mi 5 nm offshore to mid
lake-
1154 am cdt mon jul 27 2026

wilmette harbor il to st. joseph mi south to rock island passage
to charlevoix mi...

...severe thunderstorm watch 520 in effect until 7 pm cdt this
evening...

.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 271654
glflm 
expires:202607280300;;701382

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1153 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.


lmz261-362-364-366-280300-
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-
1154 am cdt mon jul 27 2026

rock island passage to charlevoix mi north...

.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;;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 kmqt 272001
glfls 
expires:202607280800;;711243

open lake forecast for lake superior
national weather service marquette mi
401 pm 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... 

weak ridging of near 30.0 inches returns to lake superior tonight 
into 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.




lsz162-280800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt mon jul 27 2026 /301 pm cdt mon jul 27 2026/

...dense fog advisory in effect until 8 am edt /7 am cdt/
tuesday...

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

$$

fzus63 kmqt 272001
glfls 
expires:202607280800;;711244

open lake forecast for lake superior
national weather service marquette mi
401 pm 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... 

weak ridging of near 30.0 inches returns to lake superior tonight 
into 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.




lsz263-280800-
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 pm edt mon jul 27 2026

...dense fog advisory in effect until 8 am edt tuesday...

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

$$

fzus63 kmqt 272001
glfls 
expires:202607280800;;711245

open lake forecast for lake superior
national weather service marquette mi
401 pm 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... 

weak ridging of near 30.0 inches returns to lake superior tonight 
into 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.




lsz264-280800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt mon jul 27 2026

...dense fog advisory in effect until 8 am edt tuesday...

.late this afternoon...north winds 5 to 15 knots. patchy fog.
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 less than 10 knots backing west in the
afternoon, then backing southwest late. patchy dense fog. waves
calm to 2 feet. 
.tuesday night...southwest winds less than 10 knots backing south
after midnight. waves calm to 2 feet. 
.wednesday...southeast winds less than 10 knots. waves calm to
2 feet. 
.wednesday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...southeast winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.friday...south winds less than 10 knots. waves calm to 2 feet. 
.saturday...north winds less than 10 knots increasing to 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202607280800;;711246

open lake forecast for lake superior
national weather service marquette mi
401 pm 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... 

weak ridging of near 30.0 inches returns to lake superior tonight 
into 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.




lsz265-280800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt mon jul 27 2026

...dense fog advisory in effect until 8 am edt tuesday...

.late this afternoon...north winds 10 to 20 knots. patchy dense
fog. waves calm to 2 feet. 
.tonight...northwest winds 10 to 20 knots veering north after
midnight, then diminishing to 5 to 15 knots 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 south 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 increasing to 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots veering southeast. a chance of
showers. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202607280800;;711247

open lake forecast for lake superior
national weather service marquette mi
401 pm 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... 

weak ridging of near 30.0 inches returns to lake superior tonight 
into 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.




lsz266-280800-
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 pm edt mon jul 27 2026

...dense fog advisory in effect until 8 am edt tuesday...

.late this afternoon...north winds 10 to 20 knots. patchy dense
fog. waves calm to 2 feet. 
.tonight...north winds 15 to 25 knots diminishing to 5 to
15 knots. patchy fog through midnight. waves building to 2 to
4 feet, then subsiding to 1 to 3 feet. 
.tuesday...north winds 5 to 15 knots backing northwest in the
afternoon. waves subsiding to calm to 2 feet. 
.tuesday night...northwest winds 5 to 15 knots veering north
after midnight, then veering south late. waves calm to 2 feet. 
.wednesday...southeast winds 5 to 15 knots. waves calm to 2 feet.
.wednesday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.thursday...southeast winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots backing south. waves calm
to 2 feet. 
.saturday...north winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 272001
glfls 
expires:202607280800;;711248

open lake forecast for lake superior
national weather service marquette mi
401 pm 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... 

weak ridging of near 30.0 inches returns to lake superior tonight 
into 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.




lsz267-280800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt mon jul 27 2026

...dense fog advisory in effect until 8 am edt tuesday...

.late this afternoon...northwest winds 10 to 20 knots. patchy
fog. 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...northwest winds 5 to 15 knots. waves calm to 2 feet.
.wednesday night...east winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.thursday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots. waves calm to
2 feet. 
.friday...south winds 5 to 15 knots backing northeast. waves calm
to 2 feet. 
.saturday...north winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 

$$