fzus63 kdtx 311314
glflh 
expires:202610312115;;024143

open lake forecast for lake huron
national weather service detroit/pontiac mi
914 am edt sat oct 31 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, centered over the eastern
great lakes today, will expand into the mid atlantic on sunday
while increasing to 30.60 inches. this high will influence the
region through the weekend, sustaining relatively light winds. a
slow moving deepening low pressure system will move from the
central plains monday to northern minnesota tuesday. this system
will drag a slow moving cold front into the great lakes region
tuesday night into wednesday as the low lifts into northern
ontario.


lhz361>363-312115-
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-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
914 am edt sat oct 31 2026

.rest of today...south winds 5 to 10 knots. waves 2 feet or less.
.tonight...south winds 5 to 10 knots increasing to 10 to 15 knots
in the late evening and overnight. waves 2 feet or less. 
.sunday...south winds 5 to 10 knots. waves 1 to 3 feet. 
.sunday night...south winds 5 to 10 knots  becoming light and
variable. waves 2 feet or less. 
.monday...light and variable winds becoming south 5 to 10 knots
late in the morning...then increasing to 10 to 15 knots late in
the afternoon. a chance of rain late in the afternoon. waves
2 feet or less. 
.tuesday...south winds 15 to 20 knots. gusts to 30 knots. rain
likely early in the morning...then a chance of rain early in the
evening. rain likely by midnight. waves 3 to 5 feet building to
4 to 6 feet . waves occasionally around 8 feet. 
.wednesday...south winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots by midnight. rain likely
until afternoon...then a chance of rain . waves 3 to 5 feet. 


$$

fzus63 kdtx 311314
glflh 
expires:202610312115;;024144

open lake forecast for lake huron
national weather service detroit/pontiac mi
914 am edt sat oct 31 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, centered over the eastern
great lakes today, will expand into the mid atlantic on sunday
while increasing to 30.60 inches. this high will influence the
region through the weekend, sustaining relatively light winds. a
slow moving deepening low pressure system will move from the
central plains monday to northern minnesota tuesday. this system
will drag a slow moving cold front into the great lakes region
tuesday night into wednesday as the low lifts into northern
ontario.


lhz462>464-312115-
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-
914 am edt sat oct 31 2026

.rest of today...south winds 5 to 10 knots. waves 2 feet or less.
.tonight...south winds 5 to 10 knots increasing to 10 to 15 knots
in the late evening and overnight. waves 2 feet or less. 
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
early in the afternoon. waves 1 to 3 feet. 
.sunday night...south winds 5 to 10 knots. waves 2 feet or less. 
.monday...south winds 5 to 10 knots increasing to 15 to 20 knots.
a chance of rain late in the afternoon. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots with gusts to around
30 knots increasing to 20 to 25 knots with gusts to around
30 knots by midnight. a chance of rain. waves 3 to 5 feet. 
.wednesday...south winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots. rain likely until
afternoon...then a chance of rain . waves 3 to 5 feet. 


$$

fzus63 kmkx 311323
glflm 
expires:202610312115;;024388

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
823 am cdt sat oct 31 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...

low pressure around 29.9 inches over the central high plains 
today will strengthen to around 29.5 inches by sunday evening, 
bringing gradually increasing southeasterly winds through today, 
and again sunday night into tuesday as low pressure ejects into 
the northern plains. gusty south winds and gales are likely 
tuesday as low pressure makes its closest approach through 
minnesota and continues to deepen. isolated thunderstorms are also
possible tuesday into tuesday night. southerly winds gradually 
diminish through wednesday, with a cold front wednesday night 
bringing westerly light winds to the lake. west winds gradually 
shifting to northwesterly are then expected through thursday.


lmz261-362-364-366-563-565-567-868-312115-
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-
823 am cdt sat oct 31 2026

sheboygan wi to pentwater mi north...

.rest of today...south winds 10 to 20 kt. waves 1 to 3 ft
building to 3 to 5 ft. 
.tonight...south winds 10 to 20 kt diminishing to 10 to 15 kt.
slight chance of showers. waves 3 to 5 ft subsiding to 2 to 4 ft.
.sunday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.sunday night...south winds 10 to 15 kt. waves 1 to 3 ft. 
.monday...south winds 10 to 20 kt increasing to 30 kt in the
afternoon. waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft. 
.monday night...southeast winds to 30 kt becoming south. showers.
waves 7 to 10 ft occasionally to 13 ft building to 8 to 12 ft
occasionally to 16 ft. 
.tuesday...south gales to 40 kt. showers. waves 10 to 14 ft 
occasionally to 18 ft. 
.wednesday...south winds 15 to 25 kt increasing to 30 kt. chance
of showers. waves 5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmkx 311323
glflm 
expires:202610312115;;024389

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
823 am cdt sat oct 31 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...

low pressure around 29.9 inches over the central high plains 
today will strengthen to around 29.5 inches by sunday evening, 
bringing gradually increasing southeasterly winds through today, 
and again sunday night into tuesday as low pressure ejects into 
the northern plains. gusty south winds and gales are likely 
tuesday as low pressure makes its closest approach through 
minnesota and continues to deepen. isolated thunderstorms are also
possible tuesday into tuesday night. southerly winds gradually 
diminish through wednesday, with a cold front wednesday night 
bringing westerly light winds to the lake. west winds gradually 
shifting to northwesterly are then expected through thursday.


lmz080-669-671-673-675-777-779-870-872-874-876-878-312115-
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-
823 am cdt sat oct 31 2026

sheboygan wi to pentwater mi south...

.rest of today...southeast winds 10 to 20 kt. isolated showers
through mid morning, then slight chance of showers this
afternoon. waves 2 to 4 ft building to 3 to 5 ft. 
.tonight...southeast winds 10 to 20 kt becoming south 10 to
15 kt. slight chance of showers. waves 3 to 5 ft subsiding to
2 to 4 ft. 
.sunday...south winds 5 to 10 kt becoming southeast. waves 1 to
3 ft. 
.sunday night...southeast winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 2 ft building to 2 to 4 ft. 
.monday...south winds 10 to 20 kt increasing to 30 kt in the
afternoon. waves 3 to 5 ft building to 5 to 8 ft occasionally to
10 ft. 
.monday night...southeast winds to 30 kt becoming south. chance
of showers. waves 7 to 10 ft occasionally to 13 ft building to
8 to 11 ft occasionally to 14 ft. 
.tuesday...south gales to 40 kt. showers likely. waves 10 to 14 
ft occasionally to 18 ft. 
.wednesday...south winds 15 to 25 kt increasing to 30 kt. chance
of showers. waves 5 to 8 ft occasionally to 10 ft.  

$$

fzus63 kmqt 310801
glfls 
expires:202610312000;;012159

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat oct 31 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 30.5 inch high pressure over the lower great lakes this morning 
will keep ridging of 30.2 inches over lake superior through sunday 
as it exits east over the eastern seaboard. a 29.4 inch colorado low 
over the plains on monday then lifts into minnesota monday evening, 
eventually passing over western lake superior at 29.7 inches on 
tuesday. this low then passes north towards james bay tuesday night. 
in its wake, high pressure ridging of 30.0 inches builds back over 
lake superior by late wednesday.




lsz266-312000-
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 am edt sat oct 31 2026

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southwest winds 5 to 15 knots backing south in the
afternoon. waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots. a slight chance of showers
after midnight. waves calm to 2 feet. 
.sunday...south winds 10 to 20 knots becoming southwest 5 to
15 knots in the afternoon. a slight chance of showers through
early afternoon. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.monday...south winds 10 to 20 knots backing southeast by mid
afternoon. waves building to 1 to 3 feet. 
.monday night...southeast winds 15 to 25 knots. showers. waves
building to 3 to 6 feet occasionally to 8 feet. 
.tuesday...southeast winds 15 to 25 knots becoming south gales to
35 knots. showers. waves subsiding to 3 to 5 feet occasionally to
7 feet. 
.wednesday...south winds 15 to 25 knots veering southwest. a
chance of showers. waves subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 310801
glfls 
expires:202610312000;;012155

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat oct 31 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 30.5 inch high pressure over the lower great lakes this morning 
will keep ridging of 30.2 inches over lake superior through sunday 
as it exits east over the eastern seaboard. a 29.4 inch colorado low 
over the plains on monday then lifts into minnesota monday evening, 
eventually passing over western lake superior at 29.7 inches on 
tuesday. this low then passes north towards james bay tuesday night. 
in its wake, high pressure ridging of 30.0 inches builds back over 
lake superior by late wednesday.




lsz162-312000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt sat oct 31 2026 /300 am cdt sat oct 31 2026/

.early this morning...south winds less than 10 knots. waves calm
to 2 feet. 
.today...southeast winds less than 10 knots becoming east 5 to
15 knots in the afternoon. a slight chance of showers by mid
afternoon. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots becoming northeast less than
10 knots after midnight, then veering south late. a chance of
showers. waves calm to 2 feet. 
.sunday...southwest winds less than 10 knots becoming east 5 to
15 knots late. a slight chance of showers through early
afternoon. waves calm to 2 feet. 
.sunday night...east winds less than 10 knots increasing to 5 to
15 knots after midnight. waves calm to 2 feet. 
.monday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. a chance of showers through early afternoon,
then showers likely by mid afternoon. waves calm to 2 feet. 
.monday night...east winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. showers. waves building to 1 to 3 feet. 
.tuesday...east winds 10 to 20 knots increasing to 15 to
25 knots. showers. waves building to 3 to 5 feet occasionally to
7 feet. 
.wednesday...west winds 15 to 25 knots veering northwest. showers
likely. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 310801
glfls 
expires:202610312000;;012160

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat oct 31 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 30.5 inch high pressure over the lower great lakes this morning 
will keep ridging of 30.2 inches over lake superior through sunday 
as it exits east over the eastern seaboard. a 29.4 inch colorado low 
over the plains on monday then lifts into minnesota monday evening, 
eventually passing over western lake superior at 29.7 inches on 
tuesday. this low then passes north towards james bay tuesday night. 
in its wake, high pressure ridging of 30.0 inches builds back over 
lake superior by late wednesday.




lsz267-312000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt sat oct 31 2026

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southwest winds 10 to 20 knots becoming south 5 to
15 knots in the afternoon, then backing southeast late. waves
calm to 2 feet. 
.tonight...south winds 10 to 20 knots. a slight chance of showers
after midnight. waves calm to 2 feet. 
.sunday...south winds 10 to 20 knots diminishing to 5 to 15 knots
late. a slight chance of showers. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.monday...south winds 10 to 20 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. showers. waves building to 2 to
4 feet. 
.tuesday...southeast winds 15 to 25 knots increasing to 20 to
30 knots. showers. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.wednesday...south winds 15 to 25 knots veering southwest.
showers likely, then a chance of showers. waves subsiding to calm
to 2 feet, then building to 2 to 4 feet. 

$$

fzus63 kmqt 310801
glfls 
expires:202610312000;;012156

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat oct 31 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 30.5 inch high pressure over the lower great lakes this morning 
will keep ridging of 30.2 inches over lake superior through sunday 
as it exits east over the eastern seaboard. a 29.4 inch colorado low 
over the plains on monday then lifts into minnesota monday evening, 
eventually passing over western lake superior at 29.7 inches on 
tuesday. this low then passes north towards james bay tuesday night. 
in its wake, high pressure ridging of 30.0 inches builds back over 
lake superior by late wednesday.




lsz263-312000-
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 am edt sat oct 31 2026

.early this morning...south winds less than 10 knots. waves calm
to 2 feet. 
.today...south winds less than 10 knots backing east late. waves
calm to 2 feet. 
.tonight...southeast winds 5 to 15 knots veering south after
midnight. a chance of showers. waves calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. a slight chance of
showers through early afternoon. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots. waves calm to 2 feet. 
.monday...southeast winds 5 to 15 knots. a chance of showers by
mid afternoon. waves calm to 2 feet. 
.monday night...southeast winds 5 to 15 knots. showers. waves
building to 2 to 4 feet. 
.tuesday...southeast winds 10 to 20 knots becoming east 15 to
25 knots. showers. waves building to 3 to 5 feet occasionally to
7 feet. 
.wednesday...southwest winds 15 to 25 knots veering west. rain
showers likely, then a chance of rain showers. waves subsiding to
2 to 4 feet, then building to 3 to 5 feet occasionally to 7 feet.

$$

fzus63 kmqt 310801
glfls 
expires:202610312000;;012157

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat oct 31 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 30.5 inch high pressure over the lower great lakes this morning 
will keep ridging of 30.2 inches over lake superior through sunday 
as it exits east over the eastern seaboard. a 29.4 inch colorado low 
over the plains on monday then lifts into minnesota monday evening, 
eventually passing over western lake superior at 29.7 inches on 
tuesday. this low then passes north towards james bay tuesday night. 
in its wake, high pressure ridging of 30.0 inches builds back over 
lake superior by late wednesday.




lsz264-312000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt sat oct 31 2026

.early this morning...southwest winds less than 10 knots. waves
calm to 2 feet. 
.today...southwest winds less than 10 knots backing southeast
late. waves calm to 2 feet. 
.tonight...south winds 5 to 15 knots. a chance of showers. waves
calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. a slight chance of
showers through early afternoon. waves calm to 2 feet. 
.sunday night...south winds less than 10 knots. waves calm to
2 feet. 
.monday...south winds 5 to 15 knots becoming southeast 10 to
20 knots by mid afternoon. a chance of showers by mid afternoon.
waves building to 1 to 3 feet. 
.monday night...southeast winds 10 to 20 knots. showers. waves
building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...southeast winds 15 to 25 knots increasing to 20 to
30 knots. showers. waves building to 3 to 6 feet occasionally to
8 feet. 
.wednesday...southwest winds 10 to 20 knots becoming northwest
15 to 25 knots. showers likely, then a chance of showers. waves
subsiding to 2 to 4 feet, then building to 3 to 5 feet
occasionally to 7 feet. 

$$

fzus63 kmqt 310801
glfls 
expires:202610312000;;012158

open lake forecast for lake superior
national weather service marquette mi
400 am edt sat oct 31 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 30.5 inch high pressure over the lower great lakes this morning 
will keep ridging of 30.2 inches over lake superior through sunday 
as it exits east over the eastern seaboard. a 29.4 inch colorado low 
over the plains on monday then lifts into minnesota monday evening, 
eventually passing over western lake superior at 29.7 inches on 
tuesday. this low then passes north towards james bay tuesday night. 
in its wake, high pressure ridging of 30.0 inches builds back over 
lake superior by late wednesday.




lsz265-312000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt sat oct 31 2026

.early this morning...southwest winds 5 to 15 knots. waves calm
to 2 feet. 
.today...southwest winds 5 to 15 knots backing southeast late.
waves calm to 2 feet. 
.tonight...south winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. a chance of showers after midnight.
waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots veering southwest in the
afternoon, then backing south late. a slight chance of showers
through early afternoon. waves calm to 2 feet. 
.sunday night...south winds 5 to 15 knots. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots becoming southeast 15 to
25 knots by mid afternoon. a chance of showers by mid afternoon.
waves building to 1 to 3 feet. 
.monday night...southeast winds 15 to 25 knots. showers. waves
building to 2 to 4 feet. 
.tuesday...southeast winds 15 to 25 knots becoming south 20 to
30 knots. showers. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.wednesday...south winds 15 to 25 knots veering west. a chance of
showers. waves subsiding to calm to 2 feet, then building to 2 to
4 feet. 

$$