fzus63 kdtx 201339
glflh 
expires:202610202145;;886953

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 am 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.


lhz361-362-202145-
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-
939 am edt tue oct 20 2026

.rest of today...east winds 10 to 15 knots with gusts up to 20
knots in the afternoon. waves 2 to 4 feet.
.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...south winds 5 to 10 knots veering to the
northwest after midnight. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots becoming light and
variable...then becoming northeast 5 to 10 knots late in the
evening. waves 2 feet or less. 
.friday...southeast winds 5 to 10 knots. waves 2 feet or less. 
.saturday...south winds 5 to 10 knots increasing to 10 to
15 knots . waves 1 to 3 feet building to 2 to 4 feet by midnight.


$$

fzus63 kdtx 201339
glflh 
expires:202610202145;;886954

open lake forecast for lake huron
national weather service detroit/pontiac mi
939 am 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>464-202145-
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-
939 am edt tue oct 20 2026

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


$$

fzus63 kmkx 201400
glflm 
expires:202610202115;;887394

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
900 am 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 southeast ontario will 
slowly drift east through wednesday. another high pressure system 
around 30.4 inches will move in from the great plains later in the
week. winds will remain light to modest through the week. east 
winds will prevail today, with southerly winds on wednesday and 
light and variable winds on thursday. breezy south winds may 
return by saturday, as low pressure moves from south central 
canada toward hudson bay.


lmz261-362-364-366-563-565-567-868-202115-
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-
900 am cdt tue oct 20 2026

sheboygan wi to pentwater mi north...

.rest of today...southeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.tonight...southeast winds 10 to 20 kt becoming south. patchy
dense fog in the evening, then patchy fog overnight. waves 1 to
2 ft. 
.wednesday...southwest winds 10 to 15 kt increasing to 10 to
20 kt. patchy dense fog in the morning. waves 1 to 3 ft. 
.wednesday night...southwest winds 10 to 15 kt veering to north.
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 3 ft. 
.friday...southeast winds 10 to 20 kt becoming south. waves 2 to
4 ft. 
.saturday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmkx 201400
glflm 
expires:202610202115;;887395

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
900 am 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 southeast ontario will 
slowly drift east through wednesday. another high pressure system 
around 30.4 inches will move in from the great plains later in the
week. winds will remain light to modest through the week. east 
winds will prevail today, with southerly winds on wednesday and 
light and variable winds on thursday. breezy south winds may 
return by saturday, as low pressure moves from south central 
canada toward hudson bay.


lmz080-669-671-673-675-777-779-870-872-874-876-878-202115-
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-
900 am cdt tue oct 20 2026

sheboygan wi to pentwater mi south...

.rest of today...east winds 5 to 10 kt. patchy fog through mid
morning. waves 1 ft or less. 
.tonight...east winds 5 to 10 kt becoming south. patchy dense fog
overnight. waves 1 to 2 ft. 
.wednesday...south winds 5 to 10 kt. waves 1 to 2 ft. 
.wednesday night...south winds 5 to 10 kt veering to west. waves
1 ft or less. 
.thursday...northeast winds 5 to 10 kt. waves 1 ft or less. 
.thursday night...northeast winds 5 to 10 kt becoming southeast.
waves 1 to 2 ft building to 1 to 3 ft. 
.friday...southeast winds 10 to 20 kt. waves 2 to 4 ft. 
.saturday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 7 ft occasionally to 9 ft.  

$$

fzus63 kmqt 201400
glfls 
expires:202610202000;;887454

open lake forecast for lake superior
national weather service marquette mi
1000 am 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 over lake superior and northeastern ontario shifts 
east today. this high builds to 30.5 inches over western quebec this 
afternoon as a 29.9 inch low moves from northern manitoba into 
western hudson bay. wednesday morning, the high weakens slightly to 
30.4 inches but expands over much of southern quebec while the low 
deepens to 29.7 inches over eastern hudson bay. meanwhile, a 30.3 
inch high moves over the north dakota/manitoba/saskatchewan 
tripoint. with the low moving across northern quebec, the highs 
merge into a 30.3 inch high 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.




lsz162-202000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt tue oct 20 2026 /900 am cdt tue oct 20 2026/

.rest of today...southeast winds 5 to 15 knots backing east late.
waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots veering southwest after
midnight. waves calm to 2 feet. 
.wednesday...southwest winds 5 to 15 knots veering west 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...east winds 5 to 15 knots. waves calm to 2 feet.
.friday...east winds 5 to 15 knots becoming south 15 to 25 knots.
waves building to 2 to 4 feet. 
.saturday...south winds 15 to 25 knots becoming southwest 20 to
30 knots. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 201400
glfls 
expires:202610202000;;887455

open lake forecast for lake superior
national weather service marquette mi
1000 am 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 over lake superior and northeastern ontario shifts 
east today. this high builds to 30.5 inches over western quebec this 
afternoon as a 29.9 inch low moves from northern manitoba into 
western hudson bay. wednesday morning, the high weakens slightly to 
30.4 inches but expands over much of southern quebec while the low 
deepens to 29.7 inches over eastern hudson bay. meanwhile, a 30.3 
inch high moves over the north dakota/manitoba/saskatchewan 
tripoint. with the low moving across northern quebec, the highs 
merge into a 30.3 inch high 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.




lsz263-202000-
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-
1000 am edt tue oct 20 2026

.rest of today...southeast winds 5 to 15 knots backing east late.
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. waves subsiding to calm to 2 feet. 
.wednesday night...northeast winds less than 10 knots becoming
east 5 to 15 knots after midnight. 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...east winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.friday...south winds 5 to 15 knots increasing to 15 to 25 knots.
waves building to 2 to 4 feet. 
.saturday...south winds 20 to 30 knots veering southwest. waves
building to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 201400
glfls 
expires:202610202000;;887456

open lake forecast for lake superior
national weather service marquette mi
1000 am 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 over lake superior and northeastern ontario shifts 
east today. this high builds to 30.5 inches over western quebec this 
afternoon as a 29.9 inch low moves from northern manitoba into 
western hudson bay. wednesday morning, the high weakens slightly to 
30.4 inches but expands over much of southern quebec while the low 
deepens to 29.7 inches over eastern hudson bay. meanwhile, a 30.3 
inch high moves over the north dakota/manitoba/saskatchewan 
tripoint. with the low moving across northern quebec, the highs 
merge into a 30.3 inch high 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.




lsz264-202000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt tue oct 20 2026

.rest of today...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 2 to 4 feet. 
.wednesday...southwest winds 10 to 20 knots veering west in the
afternoon, then becoming northwest 5 to 15 knots late. a slight
chance of showers through early afternoon. waves subsiding to
calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots becoming northeast
less than 10 knots after midnight. waves calm to 2 feet. 
.thursday...east winds less than 10 knots becoming southeast 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 10 to 20 knots. waves building to 2 to
4 feet. 
.saturday...south winds 20 to 30 knots becoming southwest 15 to
25 knots. waves building to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 201400
glfls 
expires:202610202000;;887457

open lake forecast for lake superior
national weather service marquette mi
1000 am 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 over lake superior and northeastern ontario shifts 
east today. this high builds to 30.5 inches over western quebec this 
afternoon as a 29.9 inch low moves from northern manitoba into 
western hudson bay. wednesday morning, the high weakens slightly to 
30.4 inches but expands over much of southern quebec while the low 
deepens to 29.7 inches over eastern hudson bay. meanwhile, a 30.3 
inch high moves over the north dakota/manitoba/saskatchewan 
tripoint. with the low moving across northern quebec, the highs 
merge into a 30.3 inch high 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.




lsz265-202000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt tue oct 20 2026

.rest of today...southeast winds 5 to 15 knots increasing to
10 to 20 knots late. waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight, then veering southwest late. waves
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.wednesday...southwest winds 15 to 25 knots becoming west 10 to
20 knots 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
after midnight. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots increasing to 10 to 20 knots
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 increasing to 15 to
25 knots. waves building to 2 to 4 feet. 
.saturday...south gales to 35 knots becoming southwest 20 to
30 knots. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 201400
glfls 
expires:202610202000;;887458

open lake forecast for lake superior
national weather service marquette mi
1000 am 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 over lake superior and northeastern ontario shifts 
east today. this high builds to 30.5 inches over western quebec this 
afternoon as a 29.9 inch low moves from northern manitoba into 
western hudson bay. wednesday morning, the high weakens slightly to 
30.4 inches but expands over much of southern quebec while the low 
deepens to 29.7 inches over eastern hudson bay. meanwhile, a 30.3 
inch high moves over the north dakota/manitoba/saskatchewan 
tripoint. with the low moving across northern quebec, the highs 
merge into a 30.3 inch high 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.




lsz266-202000-
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-
1000 am edt tue oct 20 2026

.rest of today...southeast winds 10 to 20 knots. waves 1 to
3 feet. 
.tonight...south winds 15 to 25 knots veering southwest late.
waves building to 2 to 4 feet. 
.wednesday...southwest winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon, then veering northwest late. a slight
chance of showers. waves subsiding to calm to 2 feet. 
.wednesday night...north winds 5 to 15 knots veering northeast
after midnight. 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 15 to 25 knots increasing to 20 to
30 knots. waves building to 2 to 4 feet. 
.saturday...south gales to 40 knots. waves building to 4 to
7 feet occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 

$$

fzus63 kmqt 201400
glfls 
expires:202610202000;;887459

open lake forecast for lake superior
national weather service marquette mi
1000 am 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 over lake superior and northeastern ontario shifts 
east today. this high builds to 30.5 inches over western quebec this 
afternoon as a 29.9 inch low moves from northern manitoba into 
western hudson bay. wednesday morning, the high weakens slightly to 
30.4 inches but expands over much of southern quebec while the low 
deepens to 29.7 inches over eastern hudson bay. meanwhile, a 30.3 
inch high moves over the north dakota/manitoba/saskatchewan 
tripoint. with the low moving across northern quebec, the highs 
merge into a 30.3 inch high 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.




lsz267-202000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt tue oct 20 2026

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

$$