fzus63 kdtx 201948
glflh 
expires:202610210400;;901455

open lake forecast for lake huron
national weather service detroit/pontiac mi
348 pm edt tue oct 20 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...high pressure, 30.50 inches, over southern quebec
today will provide light easterly winds. a dry cold front washes
out over the area wednesday night, then another area of high
pressure then stalls overhead through the end of the week.


lhz361-362-210400-
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-
348 pm edt tue oct 20 2026

.tonight...east winds 5 to 10 knots veering to the south early in
the morning. waves 1 to 3 feet. 
.wednesday...south winds 5 to 10 knots. waves 1 to 3 feet. 
.wednesday night...light and variable winds becoming northwest
5 to 10 knots after midnight. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots until late afternoon
becoming light and variable. waves 2 feet or less. 
.thursday night...light and variable winds becoming east 5 to
10 knots after midnight. waves 2 feet or less. 
.friday...southeast winds 5 to 10 knots. waves 2 feet or less. 
.saturday...south winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet by midnight. 
.sunday...southwest winds 10 to 15 knots veering to the west by
midnight. waves 2 to 4 feet. 


$$

fzus63 kdtx 201948
glflh 
expires:202610210400;;901456

open lake forecast for lake huron
national weather service detroit/pontiac mi
348 pm edt tue oct 20 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...high pressure, 30.50 inches, over southern quebec
today will provide light easterly winds. a dry cold front washes
out over the area wednesday night, then another area of high
pressure then stalls overhead through the end of the week.


lhz363-462>464-210400-
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-
348 pm edt tue oct 20 2026

.tonight...northeast winds 5 to 10 knots veering to the east late
in the evening...then becoming southeast 10 to 15 knots after
midnight. waves 1 to 3 feet. 
.wednesday...south winds 10 to 15 knots decreasing to 5 to
10 knots in the afternoon. waves 1 to 3 feet. 
.wednesday night...southeast winds 5 to 10 knots early in the
evening becoming light and variable...then becoming northwest
5 to 10 knots after midnight. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet. 
.thursday night...northeast winds 10 to 15 knots becoming east
5 to 10 knots after midnight. waves 1 to 3 feet. 
.friday...southeast winds 5 to 10 knots increasing to 10 to
15 knots late in the evening. waves 2 feet or less. 
.saturday...southeast winds 10 to 15 knots becoming south 15 to
20 knots by midnight. waves 1 to 3 feet building to 2 to 4 feet
by midnight. 
.sunday...south winds 10 to 15 knots. waves 2 to 4 feet. 


$$

fzus63 kmkx 201947
glflm 
expires:202610210330;;901451

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
247 pm cdt tue oct 20 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...

high pressure around 30.5 inches over southern quebec will slowly
drift east through wednesday. another high pressure system around
30.4 inches will move in from the northern plains later in the 
week. winds will remain light to modest through the week. 

patchy dense fog may occur for locations closer to the western
shoreline of lake michigan tonight into wednesday morning.

increasing southeast winds friday into friday night may become 
breezy south winds on saturday into saturday night, as low 
pressure moves from the northern plains into hudson bay. a cold 
front should move southeast through the region sunday into monday,
shifting winds to the north and northeast behind it.


lmz261-362-364-366-563-565-567-868-210330-
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-
247 pm cdt tue oct 20 2026

sheboygan wi to pentwater mi north...

.tonight...south winds 10 to 15 kt becoming southwest. waves 1 to
2 ft. 
.wednesday...southwest winds 10 to 20 kt. patchy dense fog in the
morning near the western shore. waves 1 to 3 ft. 
.wednesday night...southwest winds 5 to 10 kt veering to
northeast. waves 1 to 2 ft. 
.thursday...northeast winds 5 to 10 kt. waves 1 ft or less. 
.thursday night...east winds 5 to 10 kt becoming southeast. waves
1 to 2 ft. 
.friday...south winds 10 to 20 kt. waves 2 to 4 ft. 
.friday night...south winds 10 to 20 kt. waves 2 to 4 ft building
to 3 to 5 ft. 
.saturday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft building to 5 to 8 ft occasionally
to 10 ft. 
.sunday...southwest winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmkx 201947
glflm 
expires:202610210330;;901452

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
247 pm cdt tue oct 20 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...

high pressure around 30.5 inches over southern quebec will slowly
drift east through wednesday. another high pressure system around
30.4 inches will move in from the northern plains later in the 
week. winds will remain light to modest through the week. 

patchy dense fog may occur for locations closer to the western
shoreline of lake michigan tonight into wednesday morning.

increasing southeast winds friday into friday night may become 
breezy south winds on saturday into saturday night, as low 
pressure moves from the northern plains into hudson bay. a cold 
front should move southeast through the region sunday into monday,
shifting winds to the north and northeast behind it.


lmz080-669-671-673-675-777-779-870-872-874-876-878-210330-
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-
247 pm cdt tue oct 20 2026

sheboygan wi to pentwater mi south...

.tonight...east winds 5 to 10 kt veering to south. patchy dense
fog overnight near the western shore. waves 1 ft or less. 
.wednesday...southwest winds 5 to 10 kt becoming south. waves
1 to 2 ft. 
.wednesday night...south winds 5 to 10 kt veering to northwest.
waves 1 ft or less. 
.thursday...northeast winds 5 to 10 kt. waves 1 ft or less. 
.thursday night...east winds 5 to 10 kt becoming southeast. waves
1 ft or less building to 1 to 3 ft. 
.friday...southeast winds 10 to 20 kt. waves 2 to 4 ft. 
.friday night...southeast winds 10 to 20 kt becoming south. waves
2 to 4 ft building to 3 to 5 ft. 
.saturday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft. 
.sunday...southwest winds 10 to 20 kt. waves 3 to 5 ft.  

$$

fzus63 kmqt 202001
glfls 
expires:202610210800;;901856

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue oct 20 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 30.4 inch high pressure over quebec extending 30.2 inch ridging 
westwards over lake superior will continue to push east tonight as a 
30.0 inch trough moves towards the region. this trough will move 
over the lake on wednesday with another high pressure building over 
the upper great lakes by thursday morning. by friday afternoon, the 
high builds to 30.5 inches over the ontario/quebec line as a 29.4 
inch low moves into eastern montana. saturday afternoon, the high 
builds further to 30.6 inches over new england as the 29.4 inch low 
approaches lake winnipeg. the low will move east to the hudson bay 
on sunday dragging a 30.2 inch trough across the lake.




lsz162-210800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt tue oct 20 2026 /300 pm cdt tue oct 20 2026/

.late this afternoon...east winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...southeast winds 5 to 15 knots veering southwest after
midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots veering west in the
afternoon, then veering northeast late. waves calm to 2 feet. 
.wednesday night...northeast winds less than 10 knots increasing
to 5 to 15 knots after midnight. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...northeast winds 5 to 15 knots veering east
after midnight. waves calm to 2 feet. 
.friday...south winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.friday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves building to 2 to 4 feet. 
.saturday...south winds 20 to 30 knots veering west. waves
building to 3 to 6 feet occasionally to 8 feet, then subsiding to
1 to 3 feet. 
.sunday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 202001
glfls 
expires:202610210800;;901857

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue oct 20 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 30.4 inch high pressure over quebec extending 30.2 inch ridging 
westwards over lake superior will continue to push east tonight as a 
30.0 inch trough moves towards the region. this trough will move 
over the lake on wednesday with another high pressure building over 
the upper great lakes by thursday morning. by friday afternoon, the 
high builds to 30.5 inches over the ontario/quebec line as a 29.4 
inch low moves into eastern montana. saturday afternoon, the high 
builds further to 30.6 inches over new england as the 29.4 inch low 
approaches lake winnipeg. the low will move east to the hudson bay 
on sunday dragging a 30.2 inch trough across the lake.




lsz263-210800-
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-
400 pm edt tue oct 20 2026

.late this afternoon...east winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...south winds 10 to 20 knots veering southwest after
midnight. waves building to 1 to 3 feet. 
.wednesday...southwest winds 5 to 15 knots veering west in the
afternoon, then veering northeast late. waves subsiding to calm
to 2 feet. 
.wednesday night...east winds 5 to 15 knots backing northeast
after midnight, then veering east late. waves calm to 2 feet. 
.thursday...east winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.friday...south winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves building to 2 to 4 feet. 
.saturday...south gales to 35 knots becoming southwest 20 to
30 knots. a chance of showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...west winds 15 to 25 knots becoming northwest 10 to
20 knots. waves subsiding to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 202001
glfls 
expires:202610210800;;901858

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue oct 20 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 30.4 inch high pressure over quebec extending 30.2 inch ridging 
westwards over lake superior will continue to push east tonight as a 
30.0 inch trough moves towards the region. this trough will move 
over the lake on wednesday with another high pressure building over 
the upper great lakes by thursday morning. by friday afternoon, the 
high builds to 30.5 inches over the ontario/quebec line as a 29.4 
inch low moves into eastern montana. saturday afternoon, the high 
builds further to 30.6 inches over new england as the 29.4 inch low 
approaches lake winnipeg. the low will move east to the hudson bay 
on sunday dragging a 30.2 inch trough across the lake.




lsz264-210800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm edt tue oct 20 2026

.late this afternoon...southeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...south winds 10 to 20 knots veering southwest after
midnight. waves building to 1 to 3 feet. 
.wednesday...southwest winds 10 to 20 knots becoming west 5 to
15 knots in the afternoon, then veering north late. waves
subsiding to calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots becoming northeast
less than 10 knots after midnight, then veering east late. 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...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.friday...south winds 5 to 15 knots. waves building to 1 to
3 feet. 
.friday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves building to 2 to 4 feet. 
.saturday...south winds 20 to 30 knots veering southwest. a
chance of showers. waves building to 4 to 7 feet occasionally to
9 feet, then subsiding to 3 to 5 feet occasionally to 7 feet. 
.sunday...west winds 20 to 30 knots becoming northwest 10 to
20 knots. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 202001
glfls 
expires:202610210800;;901859

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue oct 20 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 30.4 inch high pressure over quebec extending 30.2 inch ridging 
westwards over lake superior will continue to push east tonight as a 
30.0 inch trough moves towards the region. this trough will move 
over the lake on wednesday with another high pressure building over 
the upper great lakes by thursday morning. by friday afternoon, the 
high builds to 30.5 inches over the ontario/quebec line as a 29.4 
inch low moves into eastern montana. saturday afternoon, the high 
builds further to 30.6 inches over new england as the 29.4 inch low 
approaches lake winnipeg. the low will move east to the hudson bay 
on sunday dragging a 30.2 inch trough across the lake.




lsz265-210800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt tue oct 20 2026

.late this afternoon...southeast winds 10 to 20 knots. waves calm
to 2 feet. 
.tonight...south winds 10 to 20 knots becoming southwest 15 to
25 knots after midnight. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.wednesday...southwest winds 10 to 20 knots veering west in the
afternoon, then becoming north 5 to 15 knots late. waves calm to
2 feet. 
.wednesday night...north winds 5 to 15 knots veering northeast
late. waves calm to 2 feet. 
.thursday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 10 to 20 knots veering south
after midnight. waves calm to 2 feet. 
.friday...south winds 10 to 20 knots. waves building to 1 to
3 feet. 
.friday night...south winds 15 to 25 knots. waves building to
2 to 4 feet. 
.saturday...south gales to 35 knots becoming southwest 20 to
30 knots. a chance of showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 
.sunday...west winds 20 to 30 knots becoming northwest 15 to
25 knots. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 202001
glfls 
expires:202610210800;;901860

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue oct 20 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 30.4 inch high pressure over quebec extending 30.2 inch ridging 
westwards over lake superior will continue to push east tonight as a 
30.0 inch trough moves towards the region. this trough will move 
over the lake on wednesday with another high pressure building over 
the upper great lakes by thursday morning. by friday afternoon, the 
high builds to 30.5 inches over the ontario/quebec line as a 29.4 
inch low moves into eastern montana. saturday afternoon, the high 
builds further to 30.6 inches over new england as the 29.4 inch low 
approaches lake winnipeg. the low will move east to the hudson bay 
on sunday dragging a 30.2 inch trough across the lake.




lsz266-210800-
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-
400 pm edt tue oct 20 2026

.late this afternoon...southeast winds 10 to 20 knots. waves calm
to 2 feet. 
.tonight...south winds 15 to 25 knots veering southwest late.
waves building to 2 to 4 feet, then subsiding to 1 to 3 feet. 
.wednesday...southwest winds 10 to 20 knots becoming west 5 to
15 knots in the afternoon, then veering northwest late. waves
subsiding to calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering northeast
late. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots veering southeast by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves calm to 2 feet. 
.friday...south winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.friday night...south winds 15 to 25 knots increasing to 20 to
30 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.saturday...south gales to 40 knots veering southwest. a chance
of showers. waves building to 5 to 8 feet occasionally to
10 feet, then subsiding to 3 to 5 feet occasionally to 7 feet. 
.sunday...west winds 20 to 30 knots becoming northwest 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 202001
glfls 
expires:202610210800;;901861

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue oct 20 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 30.4 inch high pressure over quebec extending 30.2 inch ridging 
westwards over lake superior will continue to push east tonight as a 
30.0 inch trough moves towards the region. this trough will move 
over the lake on wednesday with another high pressure building over 
the upper great lakes by thursday morning. by friday afternoon, the 
high builds to 30.5 inches over the ontario/quebec line as a 29.4 
inch low moves into eastern montana. saturday afternoon, the high 
builds further to 30.6 inches over new england as the 29.4 inch low 
approaches lake winnipeg. the low will move east to the hudson bay 
on sunday dragging a 30.2 inch trough across the lake.




lsz267-210800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm edt tue oct 20 2026

.late this afternoon...southeast winds 10 to 20 knots. waves 1 to
3 feet. 
.tonight...south winds 15 to 25 knots veering southwest late.
waves 1 to 3 feet. 
.wednesday...southwest winds 10 to 20 knots becoming west 5 to
15 knots late. waves subsiding to calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering northeast
late. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves calm to 2 feet. 
.friday...south winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.friday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves building to 2 to 4 feet. 
.saturday...south gales to 35 knots diminishing to 20 to
30 knots. a chance of showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...west winds 15 to 25 knots veering northwest. waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 

$$