fzus63 kdtx 290148
glflh 
expires:202610291000;;886505

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 pm edt wed oct 28 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 slowly deepening area of low pressure (29.50 inches)
tracking just north of the northern great lakes tonight will drag
a cold front through the central great lakes tomorrow. scattered
light showers are possible. brisk cold air behind the front will
support northwest gusts of 25 to 30 knots over northern lake
huron thursday evening and night.


lhz361-362-291000-
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-
948 pm edt wed oct 28 2026

.rest of tonight...south winds 10 to 15 knots increasing to 15 to
20 knots with gusts to around 30 knots early in the morning. a
chance of showers after midnight. waves 2 to 4 feet building to
3 to 5 feet after midnight. 
.thursday...southwest winds 15 to 20 knots with gusts to around
30 knots decreasing to 10 to 15 knots early in the afternoon...
then becoming west 15 to 20 knots late in the afternoon. a chance
of showers in the morning. waves 4 to 6 feet. waves occasionally
around 8 feet. 
.thursday night...northwest winds 15 to 20 knots. waves 5 to
7 feet. waves occasionally around 10 feet. 
.friday...northwest winds 15 to 20 knots becoming west 10 to
15 knots early in the afternoon. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.friday night...west winds 10 to 15 knots becoming light and
variable. waves 2 to 4 feet subsiding to 1 to 3 feet in the late
evening and overnight. 
.saturday...light and variable winds becoming southeast 5 to
10 knots late in the afternoon...then becoming light and variable
late in the evening. waves 2 feet or less. 
.sunday...light and variable winds. waves 2 feet or less. 
.monday...light and variable winds becoming south 5 to 10 knots
in the late morning and early afternoon...then backing to the
southeast . waves 2 feet or less. 


$$

fzus63 kdtx 290148
glflh 
expires:202610291000;;886506

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 pm edt wed oct 28 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 slowly deepening area of low pressure (29.50 inches)
tracking just north of the northern great lakes tonight will drag
a cold front through the central great lakes tomorrow. scattered
light showers are possible. brisk cold air behind the front will
support northwest gusts of 25 to 30 knots over northern lake
huron thursday evening and night.


lhz363-291000-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
948 pm edt wed oct 28 2026

.rest of tonight...south winds 10 to 15 knots increasing to 15 to
20 knots early in the morning. waves 1 to 3 feet building to 3 to
5 feet after midnight. 
.thursday...southwest winds 15 to 20 knots with gusts to around
30 knots becoming west 10 to 15 knots late in the afternoon.
waves 4 to 6 feet. waves occasionally around 8 feet. 
.thursday night...west winds 10 to 15 knots becoming northwest
15 to 20 knots in the late evening and overnight. waves 3 to
5 feet. 
.friday...northwest winds 15 to 20 knots decreasing to 5 to
10 knots. waves 3 to 5 feet. 
.friday night...northwest winds 5 to 10 knots. waves 1 to 3 feet.
.saturday...light and variable winds becoming south 5 to 10 knots
late in the afternoon. waves 2 feet or less. 
.sunday...southeast winds 5 to 10 knots early in the morning
becoming light and variable...then becoming south 5 to 10 knots
by midnight. waves 2 feet or less. 
.monday...southwest winds 5 to 10 knots backing to the southeast
early in the evening...then increasing to 10 to 15 knots by
midnight. waves 2 feet or less. 


$$

fzus63 kdtx 290148
glflh 
expires:202610291000;;886507

open lake forecast for lake huron
national weather service detroit/pontiac mi
948 pm edt wed oct 28 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 slowly deepening area of low pressure (29.50 inches)
tracking just north of the northern great lakes tonight will drag
a cold front through the central great lakes tomorrow. scattered
light showers are possible. brisk cold air behind the front will
support northwest gusts of 25 to 30 knots over northern lake
huron thursday evening and night.


lhz462>464-291000-
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-
948 pm edt wed oct 28 2026

.rest of tonight...south winds 10 to 15 knots. waves 1 to 3 feet
building to 2 to 4 feet early in the morning. 
.thursday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the afternoon. a chance of showers. waves 2 to
4 feet. 
.thursday night...west winds 10 to 15 knots becoming northwest
15 to 20 knots in the late evening and overnight. waves 1 to
3 feet building to 3 to 5 feet in the late evening and overnight.
.friday...northwest winds 15 to 20 knots decreasing to 5 to
10 knots. waves 3 to 5 feet. 
.friday night...light and variable winds. waves 1 to 3 feet. 
.saturday...east winds 5 to 10 knots veering to the southeast.
waves 2 feet or less. 
.sunday...southeast winds 5 to 10 knots early in the morning
becoming light and variable...then becoming south 5 to 10 knots
by midnight. waves 2 feet or less. 
.monday...south winds 5 to 10 knots becoming southeast 10 to
15 knots by midnight. waves 2 feet or less. 


$$

fzus63 kmkx 290159
glflm 
expires:202610290930;;886630

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 pm cdt wed oct 28 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 will move northeast of lake 
superior overnight and to james bay early on thursday, deepening 
to around 29.5 inches. as the low travels northeast, it is 
expected to drag a cold front over the upper great lakes region. 

breezy south to southwest winds are expected to increase 
overnight, and gusts will come within a few knots of gale force 
over the northern third of lake michigan. a few gusts to gale 
force are possible. a few thunderstorms will also be possible 
tonight, mainly over the southern half of the lake. 

the cold front will pass over the lake during the morning hours
thursday, bringing winds around to northwesterly. winds are 
expected to ease in strength following the frontal passage, but 
will remain modestly breezy into thursday night. high pressure
around 30.4 inches will move into the region friday into friday
night, bringing lighter winds. 


lmz261-362-364-366-563-565-567-868-290930-
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-
859 pm cdt wed oct 28 2026

sheboygan wi to pentwater mi north...

.rest of tonight...south winds 15 to 25 kt increasing to gales to
35 kt, then becoming southwest to 30 kt late. slight chance of
thunderstorms with isolated showers through early evening, then
chance of showers and slight chance of thunderstorms overnight.
waves 3 to 5 ft building to 5 to 8 ft occasionally to 10 ft. 
.thursday...west winds to 30 kt becoming northwest 10 to 20 kt.
waves 4 to 7 ft occasionally to 9 ft subsiding to 2 to 4 ft. 
.thursday night...northwest winds 15 to 25 kt diminishing to
10 to 20 kt. waves 3 to 5 ft. 
.friday...northwest winds 10 to 20 kt. waves 1 to 3 ft subsiding
to 1 to 2 ft. 
.friday night...southwest winds 10 to 15 kt backing to east.
waves 1 to 2 ft. 
.saturday...southeast winds 10 to 15 kt. waves 2 to 4 ft. 
.saturday night...southeast winds 5 to 10 kt. waves 2 to 4 ft
subsiding to 1 to 3 ft. 
.sunday...southeast winds 5 to 10 kt becoming south. waves 1 to
2 ft. 
.monday...southeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft.  

$$

fzus63 kmkx 290159
glflm 
expires:202610290930;;886631

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
859 pm cdt wed oct 28 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 will move northeast of lake 
superior overnight and to james bay early on thursday, deepening 
to around 29.5 inches. as the low travels northeast, it is 
expected to drag a cold front over the upper great lakes region. 

breezy south to southwest winds are expected to increase 
overnight, and gusts will come within a few knots of gale force 
over the northern third of lake michigan. a few gusts to gale 
force are possible. a few thunderstorms will also be possible 
tonight, mainly over the southern half of the lake. 

the cold front will pass over the lake during the morning hours
thursday, bringing winds around to northwesterly. winds are 
expected to ease in strength following the frontal passage, but 
will remain modestly breezy into thursday night. high pressure
around 30.4 inches will move into the region friday into friday
night, bringing lighter winds. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-290930-
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-
859 pm cdt wed oct 28 2026

sheboygan wi to pentwater mi south...

.rest of tonight...south winds 15 to 25 kt becoming southwest to
30 kt. chance of showers and slight chance of thunderstorms
overnight. waves 2 to 4 ft building to 4 to 6 ft occasionally to
8 ft. 
.thursday...southwest winds 15 to 25 kt becoming northwest 10 to
20 kt. slight chance of showers and thunderstorms in the morning,
then chance of showers in the afternoon. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft. 
.thursday night...northwest winds 10 to 20 kt becoming north
10 to 15 kt. waves 3 to 5 ft. 
.friday...northeast winds 5 to 10 kt. waves 2 to 4 ft subsiding
to 1 to 3 ft. 
.friday night...east winds 10 to 15 kt. waves 1 to 3 ft. 
.saturday...southeast winds 10 to 20 kt. chance of showers. waves
3 to 5 ft. 
.saturday night...southeast winds 10 to 15 kt diminishing to 5 to
10 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.sunday...southeast winds 5 to 10 kt. waves 1 to 2 ft. 
.monday...southeast winds 10 to 20 kt. waves 2 to 4 ft.  

$$

fzus63 kmqt 290201
glfls 
expires:202610290800;;886675

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed oct 28 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...

tonight, a 29.8 inch low over northwest ontario will cross northern 
ontario, deepening to 29.6 inches thursday morning. this low will 
deepen further to 29.5 inches thursday afternoon over quebec as 30.2 
inch ridging fills over the northern plains. as the low departs to 
the northeast by friday morning, high pressure over elongates from 
lake michigan to the canadian rockies at between 30.3 and 30.4 
inches. friday night into saturday, the high settles over the great 
lakes at 30.4 inches. the high builds to 30.5 inches over new 
england saturday night, weakening through sunday, reaching 30.3 
inches monday morning. meanwhile, a 29.5 inch colorado low develops, 
which will approach the upper great lakes early next week.




lsz162-290800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 pm edt wed oct 28 2026 /900 pm cdt wed oct 28 2026/

.rest of tonight...northwest winds 5 to 15 knots becoming west
10 to 20 knots after midnight, then increasing to 20 to 30 knots
late. a chance of showers by midnight. waves calm to 2 feet
building to 3 to 5 feet occasionally to 7 feet. 
.thursday...west winds 20 to 30 knots diminishing to 15 to
25 knots late. waves building to 3 to 6 feet occasionally to
8 feet. 
.thursday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight, then backing west late. waves
subsiding to calm to 2 feet. 
.friday...west winds 5 to 15 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.friday night...west winds less than 10 knots backing east after
midnight. waves calm to 2 feet. 
.saturday...east winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots becoming south less
than 10 knots after midnight. waves calm to 2 feet. 
.sunday...southwest winds less than 10 knots backing east. waves
calm to 2 feet. 
.monday...east winds 10 to 20 knots. a chance of showers. waves
building to 1 to 3 feet. 

$$

fzus63 kmqt 290201
glfls 
expires:202610290800;;886676

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed oct 28 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...

tonight, a 29.8 inch low over northwest ontario will cross northern 
ontario, deepening to 29.6 inches thursday morning. this low will 
deepen further to 29.5 inches thursday afternoon over quebec as 30.2 
inch ridging fills over the northern plains. as the low departs to 
the northeast by friday morning, high pressure over elongates from 
lake michigan to the canadian rockies at between 30.3 and 30.4 
inches. friday night into saturday, the high settles over the great 
lakes at 30.4 inches. the high builds to 30.5 inches over new 
england saturday night, weakening through sunday, reaching 30.3 
inches monday morning. meanwhile, a 29.5 inch colorado low develops, 
which will approach the upper great lakes early next week.




lsz263-290800-
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 pm edt wed oct 28 2026

.rest of tonight...south winds 10 to 20 knots becoming west 15 to
25 knots after midnight. a chance of showers and a slight chance
of thunderstorms by midnight. waves calm to 2 feet building to
3 to 6 feet occasionally to 8 feet. 
.thursday...west winds 20 to 30 knots. waves building to 4 to
8 feet occasionally to 10 feet. 
.thursday night...northwest winds 15 to 25 knots diminishing to
5 to 15 knots. waves subsiding to 1 to 3 feet. 
.friday...west winds 5 to 15 knots. waves subsiding to calm to
2 feet. 
.friday night...west winds 5 to 15 knots becoming south less than
10 knots after midnight. waves calm to 2 feet. 
.saturday...south winds less than 10 knots. waves calm to 2 feet.
.saturday night...south winds less than 10 knots. waves calm to
2 feet. 
.sunday...southwest winds less than 10 knots backing south. waves
calm to 2 feet. 
.monday...east winds 5 to 15 knots veering southeast. a chance of
showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 290201
glfls 
expires:202610290800;;886677

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed oct 28 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...

tonight, a 29.8 inch low over northwest ontario will cross northern 
ontario, deepening to 29.6 inches thursday morning. this low will 
deepen further to 29.5 inches thursday afternoon over quebec as 30.2 
inch ridging fills over the northern plains. as the low departs to 
the northeast by friday morning, high pressure over elongates from 
lake michigan to the canadian rockies at between 30.3 and 30.4 
inches. friday night into saturday, the high settles over the great 
lakes at 30.4 inches. the high builds to 30.5 inches over new 
england saturday night, weakening through sunday, reaching 30.3 
inches monday morning. meanwhile, a 29.5 inch colorado low develops, 
which will approach the upper great lakes early next week.




lsz264-290800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 pm edt wed oct 28 2026

.rest of tonight...south winds 10 to 20 knots becoming west 15 to
25 knots after midnight. showers and a slight chance of
thunderstorms by midnight, then a slight chance of showers after
midnight. waves 2 to 4 feet building to 3 to 6 feet occasionally
to 8 feet. 
.thursday...west winds 20 to 30 knots. waves building to 5 to
8 feet occasionally to 10 feet. 
.thursday night...northwest winds 15 to 25 knots diminishing to
10 to 20 knots after midnight. waves subsiding to 2 to 4 feet. 
.friday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves subsiding to calm to 2 feet. 
.friday night...west winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet. 
.saturday...southwest winds less than 10 knots. waves calm to
2 feet. 
.saturday night...south winds less than 10 knots veering
southwest after midnight. waves calm to 2 feet. 
.sunday...southwest winds less than 10 knots. waves calm to
2 feet. 
.monday...southeast winds 5 to 15 knots. a chance of showers.
waves building to 1 to 3 feet. 

$$

fzus63 kmqt 290201
glfls 
expires:202610290800;;886678

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed oct 28 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...

tonight, a 29.8 inch low over northwest ontario will cross northern 
ontario, deepening to 29.6 inches thursday morning. this low will 
deepen further to 29.5 inches thursday afternoon over quebec as 30.2 
inch ridging fills over the northern plains. as the low departs to 
the northeast by friday morning, high pressure over elongates from 
lake michigan to the canadian rockies at between 30.3 and 30.4 
inches. friday night into saturday, the high settles over the great 
lakes at 30.4 inches. the high builds to 30.5 inches over new 
england saturday night, weakening through sunday, reaching 30.3 
inches monday morning. meanwhile, a 29.5 inch colorado low develops, 
which will approach the upper great lakes early next week.




lsz265-290800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 pm edt wed oct 28 2026

.rest of tonight...south winds 20 to 30 knots veering southwest
after midnight, then becoming west to 30 knots with a few gale
force gusts to 35 knots possible late. showers and a slight
chance of thunderstorms by midnight, then a slight chance of
showers after midnight. waves 2 to 4 feet building to 3 to 6 feet
occasionally to 8 feet. 
.thursday...west winds to 30 knots with a few gale force gusts to
40 knots possible. waves building to 5 to 8 feet occasionally to
10 feet. 
.thursday night...northwest winds 20 to 30 knots. waves subsiding
to 2 to 4 feet. 
.friday...northwest winds 15 to 25 knots becoming west 10 to
20 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.friday night...west winds 5 to 15 knots backing southwest after
midnight. waves calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots backing southeast by
mid afternoon. waves calm to 2 feet. 
.saturday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots veering southwest. waves calm
to 2 feet. 
.monday...southeast winds 5 to 15 knots increasing to 15 to
25 knots. a chance of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 290201
glfls 
expires:202610290800;;886679

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed oct 28 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...

tonight, a 29.8 inch low over northwest ontario will cross northern 
ontario, deepening to 29.6 inches thursday morning. this low will 
deepen further to 29.5 inches thursday afternoon over quebec as 30.2 
inch ridging fills over the northern plains. as the low departs to 
the northeast by friday morning, high pressure over elongates from 
lake michigan to the canadian rockies at between 30.3 and 30.4 
inches. friday night into saturday, the high settles over the great 
lakes at 30.4 inches. the high builds to 30.5 inches over new 
england saturday night, weakening through sunday, reaching 30.3 
inches monday morning. meanwhile, a 29.5 inch colorado low develops, 
which will approach the upper great lakes early next week.




lsz266-290800-
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 pm edt wed oct 28 2026

.rest of tonight...south winds 20 to 30 knots veering west late.
showers and a slight chance of thunderstorms by midnight, then a
chance of showers after midnight. waves 3 to 5 feet occasionally
to 7 feet building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...west winds to 30 knots with a few gale force gusts to
35 knots possible. waves building to 7 to 11 feet occasionally to
14 feet. 
.thursday night...northwest winds to 30 knots with a few gale
force gusts to 35 knots possible diminishing to 15 to 25 knots.
waves subsiding to 3 to 6 feet occasionally to 8 feet. 
.friday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to 1 to 3 feet. 
.friday night...west winds 5 to 15 knots backing southwest after
midnight. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 5 to 15 knots backing south by mid
afternoon. waves calm to 2 feet. 
.saturday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.sunday...south winds 5 to 15 knots veering southwest. waves calm
to 2 feet. 
.monday...southeast winds 5 to 15 knots increasing to 10 to
20 knots. a chance of showers. waves building to 1 to 3 feet. 

$$

fzus63 kmqt 290201
glfls 
expires:202610290800;;886680

open lake forecast for lake superior
national weather service marquette mi
1000 pm edt wed oct 28 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...

tonight, a 29.8 inch low over northwest ontario will cross northern 
ontario, deepening to 29.6 inches thursday morning. this low will 
deepen further to 29.5 inches thursday afternoon over quebec as 30.2 
inch ridging fills over the northern plains. as the low departs to 
the northeast by friday morning, high pressure over elongates from 
lake michigan to the canadian rockies at between 30.3 and 30.4 
inches. friday night into saturday, the high settles over the great 
lakes at 30.4 inches. the high builds to 30.5 inches over new 
england saturday night, weakening through sunday, reaching 30.3 
inches monday morning. meanwhile, a 29.5 inch colorado low develops, 
which will approach the upper great lakes early next week.




lsz267-290800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 pm edt wed oct 28 2026

.rest of tonight...south winds 20 to 30 knots increasing to
30 knots with a few gale force gusts to 35 knots possible after
midnight, then veering west late. showers by midnight. a slight
chance of thunderstorms. a chance of showers after midnight.
waves 2 to 4 feet building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 
.thursday...west winds to 30 knots with a few gale force gusts to
40 knots possible veering northwest late. waves building to 8 to
11 feet occasionally to 14 feet. 
.thursday night...northwest winds to 30 knots with a few gale
force gusts to 35 knots possible diminishing to 20 to 30 knots
after midnight. a slight chance of showers through midnight.
waves subsiding to 5 to 8 feet occasionally to 10 feet. 
.friday...northwest winds 15 to 25 knots. waves subsiding to 2 to
4 feet. 
.friday night...northwest winds 5 to 15 knots backing southwest
after midnight. waves subsiding to calm to 2 feet. 
.saturday...southwest winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...south winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...south winds 5 to 15 knots veering southwest. waves calm
to 2 feet. 
.monday...southeast winds 5 to 15 knots increasing to 10 to
20 knots. waves building to 1 to 3 feet. 

$$