fzus63 kdtx 211335
glflh 
expires:202610212145;;941144

open lake forecast for lake huron
national weather service detroit/pontiac mi
935 am edt wed oct 21 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 weak and dry cold front will track through the
central great lakes tonight. another large high pressure, 30.40
inches, then builds over the area thursday and friday.


lhz361-212145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
935 am edt wed oct 21 2026

.rest of today...southwest winds 5 to 10 knots in the late
morning and early afternoon becoming light and variable. waves
2 feet or less. 
.tonight...light and variable winds becoming north 5 to 10 knots
early in the morning. waves 2 feet or less. 
.thursday...northeast 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 increasing to 10 to
15 knots late in the afternoon...then decreasing to 5 to 10 knots
late in the evening. waves 2 feet or less. 
.saturday...south winds 5 to 10 knots increasing to 10 to
15 knots. waves 1 to 3 feet. 
.sunday...southwest winds 10 to 15 knots becoming west 5 to
10 knots early in the evening...then veering to the northwest by
midnight. waves 1 to 3 feet. 


$$

fzus63 kdtx 211335
glflh 
expires:202610212145;;941145

open lake forecast for lake huron
national weather service detroit/pontiac mi
935 am edt wed oct 21 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 weak and dry cold front will track through the
central great lakes tonight. another large high pressure, 30.40
inches, then builds over the area thursday and friday.


lhz362-363-212145-
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-
935 am edt wed oct 21 2026

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


$$

fzus63 kdtx 211335
glflh 
expires:202610212145;;941146

open lake forecast for lake huron
national weather service detroit/pontiac mi
935 am edt wed oct 21 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 weak and dry cold front will track through the
central great lakes tonight. another large high pressure, 30.40
inches, then builds over the area thursday and friday.


lhz462>464-212145-
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-
935 am edt wed oct 21 2026

.rest of today...southeast winds 5 to 10 knots. waves 2 feet or
less. 
.tonight...light and variable winds becoming west 5 to 10 knots
early in the morning. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots increasing to 10 to
15 knots early in the afternoon. waves 1 to 3 feet. 
.thursday night...northeast winds 10 to 15 knots veering to the
east after midnight. waves 1 to 3 feet. 
.friday...east winds 5 to 10 knots veering to the southeast late
in the morning...then increasing to 10 to 15 knots late in the
evening. waves 2 feet or less. 
.saturday...southeast winds 5 to 10 knots becoming south 10 to
15 knots . waves 1 to 3 feet. 
.sunday...south winds 10 to 15 knots. waves 1 to 3 feet. 


$$

fzus63 kmkx 211338
glflm 
expires:202610212130;;941267

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
838 am cdt wed oct 21 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...

a ridge of 30.3 inch high pressure is centered from the
mississippi river into ontario this morning, resulting in light
south to southwest winds across the open waters. winds will trend
light and variable tonight through thursday night as the surface 
ridge nudges east toward the ohio river and quebec. persistent
southerly winds will become established friday through the weekend
as a cold front moves through the northern great plains and 30.5
inch high pressure settles into the northeastern united states.
winds could be breezy at times, with widespread gales not
anticipated at this time. will continue to monitor for possible
increases through the second half of the week. aforementioned cold
front will cross the waters sunday night, bringing a northerly
wind shift through the first half of next week. rain showers are
possible along the passing front.


lmz261-362-364-366-563-565-567-868-212130-
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-
838 am cdt wed oct 21 2026

sheboygan wi to pentwater mi north...

.rest of today...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.tonight...southwest winds 5 to 10 kt veering to north. patchy
fog overnight. waves 1 to 2 ft. 
.thursday...northeast winds 5 to 10 kt. patchy fog. waves 1 ft or
less. 
.thursday night...east winds 5 to 10 kt becoming southeast.
patchy fog in the evening, then patchy dense fog overnight. waves
1 to 2 ft. 
.friday...south winds 10 to 20 kt. waves 2 to 4 ft. 
.friday night...south winds 10 to 15 kt increasing to 10 to
20 kt. waves 2 to 4 ft. 
.saturday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft. 
.sunday...southwest winds 15 to 25 kt becoming northwest 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 2 to
4 ft.  

$$

fzus63 kmkx 211338
glflm 
expires:202610212130;;941268

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
838 am cdt wed oct 21 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...

a ridge of 30.3 inch high pressure is centered from the
mississippi river into ontario this morning, resulting in light
south to southwest winds across the open waters. winds will trend
light and variable tonight through thursday night as the surface 
ridge nudges east toward the ohio river and quebec. persistent
southerly winds will become established friday through the weekend
as a cold front moves through the northern great plains and 30.5
inch high pressure settles into the northeastern united states.
winds could be breezy at times, with widespread gales not
anticipated at this time. will continue to monitor for possible
increases through the second half of the week. aforementioned cold
front will cross the waters sunday night, bringing a northerly
wind shift through the first half of next week. rain showers are
possible along the passing front.


lmz080-669-671-673-675-777-779-870-872-874-876-878-212130-
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-
838 am cdt wed oct 21 2026

sheboygan wi to pentwater mi south...

.rest of today...south winds 5 to 10 kt. waves 1 to 2 ft. 
.tonight...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.
patchy fog in the evening, then patchy dense fog overnight. 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 15 kt becoming south 10 to
20 kt. waves 1 to 3 ft building to 2 to 4 ft. 
.saturday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft. 
.sunday...southwest winds 10 to 20 kt. waves 3 to 5 ft.  

$$

fzus63 kmqt 211400
glfls 
expires:202610212000;;941815

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed oct 21 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 30.1 inch ridging 
westwards over lake superior weakens to 30.2 inches today over new 
england and the lower great lakes. meanwhile, a weak 30.0 inch 
trough moves over the lake. another high pressure builds in from the 
west in its wake, becoming centered over northern ontario and 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 moves 
just north of lake winnipeg. the low then lifts northeast to hudson 
bay on sunday dragging a 30.2 inch trough across the lake.




lsz162-212000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt wed oct 21 2026 /900 am cdt wed oct 21 2026/

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

$$

fzus63 kmqt 211400
glfls 
expires:202610212000;;941816

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed oct 21 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 30.1 inch ridging 
westwards over lake superior weakens to 30.2 inches today over new 
england and the lower great lakes. meanwhile, a weak 30.0 inch 
trough moves over the lake. another high pressure builds in from the 
west in its wake, becoming centered over northern ontario and 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 moves 
just north of lake winnipeg. the low then lifts northeast to hudson 
bay on sunday dragging a 30.2 inch trough across the lake.




lsz263-212000-
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 wed oct 21 2026

.rest of today...west winds 5 to 15 knots veering north late. a
chance of showers by late morning. waves 1 to 3 feet subsiding to
calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...east winds less than 10 knots increasing to 5 to
15 knots late. 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 backing southeast by mid
afternoon. waves calm to 2 feet. 
.friday night...south winds 10 to 20 knots. waves building to
2 to 4 feet. 
.saturday...south winds 15 to 25 knots veering west. 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 10 to 20 knots becoming north 5 to 15 knots.
waves subsiding to calm to 2 feet. 

$$

fzus63 kmqt 211400
glfls 
expires:202610212000;;941817

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed oct 21 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 30.1 inch ridging 
westwards over lake superior weakens to 30.2 inches today over new 
england and the lower great lakes. meanwhile, a weak 30.0 inch 
trough moves over the lake. another high pressure builds in from the 
west in its wake, becoming centered over northern ontario and 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 moves 
just north of lake winnipeg. the low then lifts northeast to hudson 
bay on sunday dragging a 30.2 inch trough across the lake.




lsz264-212000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt wed oct 21 2026

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

$$

fzus63 kmqt 211400
glfls 
expires:202610212000;;941818

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed oct 21 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 30.1 inch ridging 
westwards over lake superior weakens to 30.2 inches today over new 
england and the lower great lakes. meanwhile, a weak 30.0 inch 
trough moves over the lake. another high pressure builds in from the 
west in its wake, becoming centered over northern ontario and 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 moves 
just north of lake winnipeg. the low then lifts northeast to hudson 
bay on sunday dragging a 30.2 inch trough across the lake.




lsz265-212000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt wed oct 21 2026

.rest of today...southwest winds 10 to 20 knots becoming west
5 to 15 knots in the afternoon, then veering north late. a chance
of showers by late morning. waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots veering northeast after
midnight. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots veering southeast in the
afternoon, then becoming east 10 to 20 knots late. 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 winds 20 to 30 knots veering west. a chance of
showers. waves building to 3 to 6 feet occasionally to 8 feet,
then subsiding to 1 to 3 feet. 
.sunday...west winds 20 to 30 knots becoming northwest 15 to
25 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 

$$

fzus63 kmqt 211400
glfls 
expires:202610212000;;941819

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed oct 21 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 30.1 inch ridging 
westwards over lake superior weakens to 30.2 inches today over new 
england and the lower great lakes. meanwhile, a weak 30.0 inch 
trough moves over the lake. another high pressure builds in from the 
west in its wake, becoming centered over northern ontario and 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 moves 
just north of lake winnipeg. the low then lifts northeast to hudson 
bay on sunday dragging a 30.2 inch trough across the lake.




lsz266-212000-
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 wed oct 21 2026

.rest of today...southwest winds 10 to 20 knots becoming west
5 to 15 knots in the afternoon, then veering northwest late. a
chance of showers. waves 1 to 3 feet subsiding to calm to 2 feet.
.tonight...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 building to 1 to 3 feet. 
.friday...south winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves 1 to 3 feet. 
.friday night...south winds 15 to 25 knots. waves building to
3 to 5 feet occasionally to 7 feet. 
.saturday...south gales to 35 knots. 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 15 to 25 knots veering north. waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 

$$

fzus63 kmqt 211400
glfls 
expires:202610212000;;941820

open lake forecast for lake superior
national weather service marquette mi
1000 am edt wed oct 21 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 30.1 inch ridging 
westwards over lake superior weakens to 30.2 inches today over new 
england and the lower great lakes. meanwhile, a weak 30.0 inch 
trough moves over the lake. another high pressure builds in from the 
west in its wake, becoming centered over northern ontario and 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 moves 
just north of lake winnipeg. the low then lifts northeast to hudson 
bay on sunday dragging a 30.2 inch trough across the lake.




lsz267-212000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt wed oct 21 2026

.rest of today...southwest winds 10 to 20 knots diminishing to
5 to 15 knots in the afternoon, then veering west late. a chance
of showers. waves 1 to 3 feet subsiding to calm to 2 feet. 
.tonight...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...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 winds 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 2 to 4 feet, then building to 3 to
5 feet occasionally to 7 feet. 

$$