fzus63 kdtx 230149
glflh 
expires:202610231000;;024166

open lake forecast for lake huron
national weather service detroit/pontiac mi
949 pm edt thu oct 22 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 quebec migrates
south into new england to close out the week, sustaining an
extended period of tranquil and mainly dry conditions into next
week.


lhz361-362-231000-
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-
949 pm edt thu oct 22 2026

.rest of tonight...light and variable winds becoming east 5 to
10 knots after midnight. patchy fog. waves 2 feet or less. 
.friday...southeast winds 5 to 10 knots. patchy dense fog in the
morning. waves 2 feet or less. 
.friday night...southeast winds 5 to 10 knots. waves 2 feet or
less. 
.saturday...south winds 5 to 10 knots increasing to 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet. 
.saturday night...south winds 10 to 15 knots. waves 2 to 4 feet. 
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
late in the afternoon...then becoming northwest 10 to 15 knots
late in the evening. waves 2 to 4 feet subsiding to 1 to 3 feet
late in the afternoon. 
.monday...northwest winds 5 to 10 knots. waves 1 to 3 feet. 
.tuesday...northeast winds 10 to 15 knots becoming east 5 to
10 knots. waves 2 feet or less. 


$$

fzus63 kdtx 230149
glflh 
expires:202610231000;;024167

open lake forecast for lake huron
national weather service detroit/pontiac mi
949 pm edt thu oct 22 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 quebec migrates
south into new england to close out the week, sustaining an
extended period of tranquil and mainly dry conditions into next
week.


lhz363-462>464-231000-
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-
949 pm edt thu oct 22 2026

.rest of tonight...northeast winds 5 to 10 knots. patchy fog this
evening. waves 2 feet or less. 
.friday...southeast winds 5 to 10 knots. waves 2 feet or less. 
.friday night...southeast winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. waves 2 feet or less.
.saturday...southeast winds 5 to 10 knots. waves 1 to 3 feet. 
.saturday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots in the late evening and overnight. waves 1 to
3 feet. 
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
late in the afternoon...then becoming southwest 10 to 15 knots
late in the evening. waves 1 to 3 feet. 
.monday...north winds 10 to 15 knots. waves 1 to 3 feet building
to 2 to 4 feet by midnight. 
.tuesday...northeast winds 10 to 15 knots decreasing to 5 to
10 knots . waves 2 to 4 feet subsiding to 1 to 3 feet. 


$$

fzus63 kmkx 230230
glflm 
expires:202610230915;;025581

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
930 pm cdt thu oct 22 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 30.3 inches will gradually shift eastward 
through friday, while strengthening to around 30.5 inches over 
southern quebec. light winds will continue into tonight, 
increasing a bit out of the south on friday behind the 
strengthening high. south to southwest winds will then persist 
through the weekend, between the high to the east and a cold front
to the northwest. winds will shift to the north and northeast 
behind the cold front on monday.

will continue to monitor the potential for dense tonight into
friday morning, especially across the northern 2/3 of the lake. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-230915-
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-
930 pm cdt thu oct 22 2026

sheboygan wi to pentwater mi south...

.rest of tonight...east winds 5 to 10 kt becoming southeast.
patchy dense fog. waves 1 to 2 ft. 
.friday...southeast winds 10 to 15 kt. areas of dense fog in the
morning. waves 1 to 3 ft. 
.friday night...southeast winds 10 to 15 kt. waves 1 to 3 ft. 
.saturday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. 
.saturday night...south 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. 
.sunday...south winds 10 to 20 kt. waves 2 to 4 ft. 
.sunday night...southwest winds 5 to 10 kt veering to north 10 to
20 kt. waves 1 to 3 ft. 
.monday...northeast winds 10 to 20 kt. waves 3 to 5 ft. 
.tuesday...east winds 10 to 20 kt. waves 3 to 5 ft.  

$$

fzus63 kmkx 230230
glflm 
expires:202610230915;;025580

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
930 pm cdt thu oct 22 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 30.3 inches will gradually shift eastward 
through friday, while strengthening to around 30.5 inches over 
southern quebec. light winds will continue into tonight, 
increasing a bit out of the south on friday behind the 
strengthening high. south to southwest winds will then persist 
through the weekend, between the high to the east and a cold front
to the northwest. winds will shift to the north and northeast 
behind the cold front on monday.

will continue to monitor the potential for dense tonight into
friday morning, especially across the northern 2/3 of the lake. 


lmz261-362-364-366-563-565-567-868-230915-
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-
930 pm cdt thu oct 22 2026

sheboygan wi to pentwater mi north...

.rest of tonight...east winds 5 to 10 kt becoming southeast.
patchy fog. waves 1 ft or less. 
.friday...south winds 10 to 15 kt. patchy fog in the morning.
waves 1 to 3 ft. 
.friday night...south winds 10 to 15 kt. waves 1 to 3 ft. 
.saturday...south winds 10 to 20 kt increasing to 30 kt in the
afternoon. waves 3 to 5 ft building to 4 to 6 ft occasionally to
8 ft. 
.saturday night...south winds to 30 kt. waves 4 to 6 ft
occasionally to 8 ft. 
.sunday...southwest winds 15 to 25 kt becoming west 10 to 20 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.sunday night...north winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.monday...north winds 10 to 20 kt. waves 2 to 4 ft. 
.tuesday...east winds 10 to 15 kt. waves 2 to 4 ft subsiding to
1 to 3 ft.  

$$

fzus63 kmqt 230204 cca
glfls 
expires:202610230800;;024568

open lake forecast for lake superior...corrected
national weather service marquette mi
1004 pm edt thu oct 22 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 a 30.2 inch ridge 
over lake superior through the rest of the week, builds to 30.5 
inches through friday night as it drops south towards new england. 
by saturday afternoon, a 29.2 inch low over northern manitoba drags 
a 30.1 inch trough over the west half of lake superior. the trough 
remains over the lake until saturday night. high pressure of at 
least 30.6 inches over the canadian prairies on sunday and monday 
pushes ridging of at least 30.4 inches over the upper great lakes on 
sunday. the ridging intensifies to 30.6 inches monday night into 
tuesday morning as the high's center moves overhead. the high 
retreats east into new england by wednesday morning. 




lsz264-230800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1004 pm edt thu oct 22 2026

...dense fog advisory in effect until 11 am edt friday...

.rest of tonight...southeast winds 5 to 15 knots veering south
late. patchy dense fog after midnight. waves calm to 2 feet. 
.friday...south winds 5 to 15 knots backing southeast late. waves
calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots veering south after
midnight, then increasing to 10 to 20 knots late. waves building
to 2 to 4 feet. 
.saturday...south winds 15 to 25 knots. a slight chance of
showers by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.saturday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. a slight chance of showers through
midnight. waves subsiding to 2 to 4 feet. 
.sunday...west winds 15 to 25 knots. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.sunday night...northwest winds 10 to 20 knots becoming north
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...north winds 5 to 15 knots veering northeast. waves
subsiding to calm to 2 feet. 
.tuesday...southeast winds 5 to 15 knots veering south. waves
calm to 2 feet. 

$$

fzus63 kmqt 230204 cca
glfls 
expires:202610230800;;024569

open lake forecast for lake superior...corrected
national weather service marquette mi
1004 pm edt thu oct 22 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 a 30.2 inch ridge 
over lake superior through the rest of the week, builds to 30.5 
inches through friday night as it drops south towards new england. 
by saturday afternoon, a 29.2 inch low over northern manitoba drags 
a 30.1 inch trough over the west half of lake superior. the trough 
remains over the lake until saturday night. high pressure of at 
least 30.6 inches over the canadian prairies on sunday and monday 
pushes ridging of at least 30.4 inches over the upper great lakes on 
sunday. the ridging intensifies to 30.6 inches monday night into 
tuesday morning as the high's center moves overhead. the high 
retreats east into new england by wednesday morning. 




lsz265-230800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1004 pm edt thu oct 22 2026

.rest of tonight...southeast winds 10 to 20 knots veering south
after midnight, then diminishing to 5 to 15 knots late. patchy
fog. waves calm to 2 feet. 
.friday...south winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon, then backing southeast late. patchy fog through
early afternoon. waves building to 1 to 3 feet. 
.friday night...south winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves 1 to 3 feet. 
.saturday...south winds 20 to 30 knots. waves building to 3 to
6 feet occasionally to 8 feet. 
.saturday night...south winds 20 to 30 knots becoming west 15 to
25 knots after midnight. a chance of showers. waves subsiding to
1 to 3 feet. 
.sunday...west winds 15 to 25 knots. waves 1 to 3 feet. 
.sunday night...northwest winds 15 to 25 knots veering north
after midnight. waves 1 to 3 feet. 
.monday...north winds 10 to 20 knots veering northeast. waves
subsiding to calm to 2 feet. 
.tuesday...southeast winds 10 to 20 knots veering south. waves
calm to 2 feet. 

$$

fzus63 kmqt 230204 cca
glfls 
expires:202610230800;;024570

open lake forecast for lake superior...corrected
national weather service marquette mi
1004 pm edt thu oct 22 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 a 30.2 inch ridge 
over lake superior through the rest of the week, builds to 30.5 
inches through friday night as it drops south towards new england. 
by saturday afternoon, a 29.2 inch low over northern manitoba drags 
a 30.1 inch trough over the west half of lake superior. the trough 
remains over the lake until saturday night. high pressure of at 
least 30.6 inches over the canadian prairies on sunday and monday 
pushes ridging of at least 30.4 inches over the upper great lakes on 
sunday. the ridging intensifies to 30.6 inches monday night into 
tuesday morning as the high's center moves overhead. the high 
retreats east into new england by wednesday morning. 




lsz266-230800-
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-
1004 pm edt thu oct 22 2026

.rest of tonight...southeast winds 10 to 20 knots veering south
after midnight, then increasing to 15 to 25 knots late. patchy
fog. waves calm to 2 feet building to 1 to 3 feet. 
.friday...south winds 15 to 25 knots diminishing to 10 to
20 knots late. patchy dense fog through early afternoon. waves
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 increasing to gales to
35 knots by mid afternoon. waves building to 4 to 7 feet
occasionally to 9 feet. 
.saturday night...south gales to 35 knots becoming southwest
15 to 25 knots after midnight. a chance of showers. waves
subsiding to 2 to 4 feet. 
.sunday...west winds 15 to 25 knots. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.sunday night...northwest winds 15 to 25 knots veering north
after midnight. waves subsiding to 1 to 3 feet. 
.monday...north winds 10 to 20 knots diminishing to 5 to
15 knots. waves subsiding to calm to 2 feet. 
.tuesday...east winds 5 to 15 knots becoming south 10 to
20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 230204 cca
glfls 
expires:202610230800;;024571

open lake forecast for lake superior...corrected
national weather service marquette mi
1004 pm edt thu oct 22 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 a 30.2 inch ridge 
over lake superior through the rest of the week, builds to 30.5 
inches through friday night as it drops south towards new england. 
by saturday afternoon, a 29.2 inch low over northern manitoba drags 
a 30.1 inch trough over the west half of lake superior. the trough 
remains over the lake until saturday night. high pressure of at 
least 30.6 inches over the canadian prairies on sunday and monday 
pushes ridging of at least 30.4 inches over the upper great lakes on 
sunday. the ridging intensifies to 30.6 inches monday night into 
tuesday morning as the high's center moves overhead. the high 
retreats east into new england by wednesday morning. 




lsz267-230800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1004 pm edt thu oct 22 2026

.rest of tonight...southeast winds 10 to 20 knots veering south
after midnight. patchy fog by midnight, then areas of dense fog
after midnight. waves calm to 2 feet. 
.friday...south winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. areas of dense fog through early
afternoon. waves building to 1 to 3 feet. 
.friday night...south winds 15 to 25 knots. waves 1 to 3 feet. 
.saturday...south winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.saturday night...south winds 20 to 30 knots becoming southwest
15 to 25 knots after midnight. 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. waves subsiding to 1 to
3 feet, then building to 2 to 4 feet. 
.sunday night...northwest winds 15 to 25 knots becoming north
10 to 20 knots after midnight. waves 2 to 4 feet. 
.monday...north winds 10 to 20 knots veering northeast. waves
subsiding to calm to 2 feet. 
.tuesday...east winds 5 to 15 knots becoming south 10 to
20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 230204 cca
glfls 
expires:202610230800;;024566

open lake forecast for lake superior...corrected
national weather service marquette mi
1004 pm edt thu oct 22 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 a 30.2 inch ridge 
over lake superior through the rest of the week, builds to 30.5 
inches through friday night as it drops south towards new england. 
by saturday afternoon, a 29.2 inch low over northern manitoba drags 
a 30.1 inch trough over the west half of lake superior. the trough 
remains over the lake until saturday night. high pressure of at 
least 30.6 inches over the canadian prairies on sunday and monday 
pushes ridging of at least 30.4 inches over the upper great lakes on 
sunday. the ridging intensifies to 30.6 inches monday night into 
tuesday morning as the high's center moves overhead. the high 
retreats east into new england by wednesday morning. 




lsz162-230800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1004 pm edt thu oct 22 2026 /904 pm cdt thu oct 22 2026/

...dense fog advisory in effect until 11 am edt /10 am cdt/
friday...

.rest of tonight...northeast winds 5 to 15 knots veering east
late. areas of dense fog. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots. patchy dense fog through
early afternoon. waves calm to 2 feet. 
.friday night...east winds 5 to 15 knots veering south after
midnight, then increasing to 10 to 20 knots late. patchy fog
through midnight. waves building to 1 to 3 feet. 
.saturday...south winds 15 to 25 knots veering southwest by mid
afternoon. a chance of showers. waves building to 2 to 4 feet. 
.saturday night...west winds 10 to 20 knots. a slight chance of
showers through midnight. waves subsiding to calm to 2 feet. 
.sunday...west winds 10 to 20 knots. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.sunday night...northwest winds 10 to 20 knots veering north
after midnight. waves calm to 2 feet. 
.monday...northeast winds 5 to 15 knots veering east. waves calm
to 2 feet. 
.tuesday...east winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 230204 cca
glfls 
expires:202610230800;;024567

open lake forecast for lake superior...corrected
national weather service marquette mi
1004 pm edt thu oct 22 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 a 30.2 inch ridge 
over lake superior through the rest of the week, builds to 30.5 
inches through friday night as it drops south towards new england. 
by saturday afternoon, a 29.2 inch low over northern manitoba drags 
a 30.1 inch trough over the west half of lake superior. the trough 
remains over the lake until saturday night. high pressure of at 
least 30.6 inches over the canadian prairies on sunday and monday 
pushes ridging of at least 30.4 inches over the upper great lakes on 
sunday. the ridging intensifies to 30.6 inches monday night into 
tuesday morning as the high's center moves overhead. the high 
retreats east into new england by wednesday morning. 




lsz263-230800-
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-
1004 pm edt thu oct 22 2026

...dense fog advisory in effect until 11 am edt friday...

.rest of tonight...southeast winds 5 to 15 knots veering south
late. patchy dense fog. waves calm to 2 feet. 
.friday...south winds 5 to 15 knots diminishing to less than
10 knots in the afternoon, then becoming east 5 to 15 knots late.
patchy dense fog through early afternoon. waves calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves building to 2 to 4 feet. 
.saturday...south winds 15 to 25 knots. a slight chance of
showers by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet. 
.saturday night...southwest winds 15 to 25 knots becoming west
10 to 20 knots after midnight. a slight chance of showers through
midnight. waves subsiding to 1 to 3 feet. 
.sunday...west winds 10 to 20 knots. waves building to 2 to
4 feet. 
.sunday night...northwest winds 10 to 20 knots becoming north
5 to 15 knots after midnight. waves subsiding to 1 to 3 feet. 
.monday...north winds 5 to 15 knots veering northeast. waves
subsiding to calm to 2 feet. 
.tuesday...east winds 5 to 15 knots veering south. waves calm to
2 feet. 

$$