fzus63 kdtx 031337
glflh 
expires:202610032145;;464653

open lake forecast for lake huron
national weather service detroit/pontiac mi
937 am edt sat oct 3 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, 30.30 inches, will pass across lake
huron and southern ontario today. this high will quickly exit
east of the region saturday night. a low pressure system tracking
across northern ontario into northern quebec will then drive a
cold front across the region on sunday.


lhz361>363-032145-
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-
937 am edt sat oct 3 2026

.rest of today...light and variable winds. waves 2 feet or less. 
.tonight...southeast winds 5 to 10 knots becoming south 10 to
15 knots after midnight. a chance of showers after midnight.
waves 1 to 3 feet. 
.sunday...southwest winds 15 to 20 knots. gusts to 30 knots in
the late morning and afternoon. a chance of showers. waves 3 to
5 feet. 
.sunday night...northwest winds 20 to 25 knots with gusts to
around 30 knots. waves 6 to 9 feet. waves occasionally around
12 feet. 
.monday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 5 to 10 knots. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.tuesday...light and variable winds becoming south 5 to 10 knots
in the late morning and early afternoon...then increasing to
10 to 15 knots early in the evening increasing to 15 to 20 knots
with gusts to around 30 knots by midnight. waves 1 to 3 feet
building to 3 to 5 feet by midnight. 
.wednesday...southwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
early afternoon...then decreasing to 10 to 15 knots early in the
evening becoming west 5 to 10 knots by midnight. waves 3 to
5 feet. 


$$

fzus63 kdtx 031337
glflh 
expires:202610032145;;464654

open lake forecast for lake huron
national weather service detroit/pontiac mi
937 am edt sat oct 3 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, 30.30 inches, will pass across lake
huron and southern ontario today. this high will quickly exit
east of the region saturday night. a low pressure system tracking
across northern ontario into northern quebec will then drive a
cold front across the region on sunday.


lhz462>464-032145-
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-
937 am edt sat oct 3 2026

.rest of today...light and variable winds. waves 1 to 3 feet. 
.tonight...light and variable winds becoming southeast 5 to
10 knots late in the evening...then increasing to 10 to 15 knots
after midnight decreasing to 5 to 10 knots early in the morning.
waves 2 feet or less. 
.sunday...southeast winds 5 to 10 knots veering to the southwest
in the late morning and early afternoon...then increasing to
10 to 15 knots early in the afternoon. waves 1 to 3 feet. 
.sunday night...west winds 10 to 15 knots becoming northwest
15 to 20 knots in the late evening and overnight. waves 5 to
7 feet. waves occasionally around 10 feet. 
.monday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots late in the evening. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.tuesday...northwest winds 5 to 10 knots early in the morning
becoming light and variable...then becoming south 5 to 10 knots
early in the evening increasing to 15 to 20 knots. waves 2 to
4 feet subsiding to 1 to 3 feet until early evening...then
building to 2 to 4 feet by midnight. 
.wednesday...southwest winds 15 to 20 knots decreasing to 10 to
15 knots . waves 2 to 4 feet. 


$$

fzus63 kmkx 031401
glflm 
expires:202610032130;;465403

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
901 am cdt sat oct 3 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...

30.3 inch high pressure over eastern great lakes has brought 
steadily increasing south to southeast winds over the lake as the
low pressure around 29.9 inches to the west impinges on the the 
high pressure. winds will then trend south- southwesterly this 
evening as 29.8 inch low pressure moves toward the hudson bay from
the canadian prairies. the low pressure will pull a cold front 
across the waters tonight into sunday, bringing a west- northwest 
wind shift. showers could accompany the passing front, 
particularly across the northern half of the waters. northwest 
winds will continue through the day monday, tapering monday night 
as 30.2 inch high pressure moves in from the northern great 
plains. 

a deeper area of 29.4 inch low pressure will build toward the 
hudson bay tuesday through thursday. south-southwest winds will 
increase in advance of the approaching low tuesday afternoon 
through wednesday, becoming gusty at times. a few gusts could 
approach gale-force, particularly over the northern half of the 
open waters. will be monitoring for possible headlines as this 
portion of the period draws closer. the low will pull a cold front
across the waters wednesday night into thursday, bringing a west-
northwest wind shift and scattered rain showers. best potential 
for rain is currently favored over the northern third of the open 
waters. generally westerly winds will continue through friday as 
30.1 inch high pressure moves near or just south of lake 
michigan.


lmz261-362-364-366-563-565-567-868-032130-
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-
901 am cdt sat oct 3 2026

sheboygan wi to pentwater mi north...

.rest of today...southeast winds 10 to 20 kt becoming south.
waves 1 to 3 ft building to 2 to 4 ft. 
.tonight...south winds 10 to 20 kt becoming southwest to 30 kt.
chance of showers. waves 3 to 5 ft building to 5 to 8 ft
occasionally to 10 ft. 
.sunday...west winds to 30 kt becoming northwest 15 to 25 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.sunday night...northwest winds to 30 kt. waves 3 to 5 ft. 
.monday...northwest winds 15 to 25 kt. waves 3 to 5 ft subsiding
to 2 to 4 ft. 
.monday night...north winds 10 to 20 kt backing to south 10 to
15 kt. waves 1 to 3 ft. 
.tuesday...south winds 15 to 25 kt increasing to gales to 35 kt.
waves 3 to 5 ft building to 6 to 9 ft occasionally to 12 ft. 
.wednesday...west winds 15 to 25 kt. waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft.  

$$

fzus63 kmkx 031401
glflm 
expires:202610032130;;465404

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
901 am cdt sat oct 3 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...

30.3 inch high pressure over eastern great lakes has brought 
steadily increasing south to southeast winds over the lake as the
low pressure around 29.9 inches to the west impinges on the the 
high pressure. winds will then trend south- southwesterly this 
evening as 29.8 inch low pressure moves toward the hudson bay from
the canadian prairies. the low pressure will pull a cold front 
across the waters tonight into sunday, bringing a west- northwest 
wind shift. showers could accompany the passing front, 
particularly across the northern half of the waters. northwest 
winds will continue through the day monday, tapering monday night 
as 30.2 inch high pressure moves in from the northern great 
plains. 

a deeper area of 29.4 inch low pressure will build toward the 
hudson bay tuesday through thursday. south-southwest winds will 
increase in advance of the approaching low tuesday afternoon 
through wednesday, becoming gusty at times. a few gusts could 
approach gale-force, particularly over the northern half of the 
open waters. will be monitoring for possible headlines as this 
portion of the period draws closer. the low will pull a cold front
across the waters wednesday night into thursday, bringing a west-
northwest wind shift and scattered rain showers. best potential 
for rain is currently favored over the northern third of the open 
waters. generally westerly winds will continue through friday as 
30.1 inch high pressure moves near or just south of lake 
michigan.


lmz080-669-671-673-675-777-779-870-872-874-876-878-032130-
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-
901 am cdt sat oct 3 2026

sheboygan wi to pentwater mi south...

.rest of today...east winds 10 to 15 kt becoming south 10 to
20 kt. waves 2 to 4 ft. 
.tonight...south winds 10 to 20 kt becoming southwest 15 to
25 kt. slight chance of showers overnight. waves 4 to 6 ft
occasionally to 8 ft. 
.sunday...southwest winds 10 to 20 kt veering to northwest. waves
4 to 6 ft occasionally to 8 ft subsiding to 2 to 4 ft. 
.sunday night...northwest winds 10 to 20 kt becoming north. waves
3 to 5 ft. 
.monday...north winds 10 to 20 kt. waves 3 to 5 ft. 
.monday night...northeast winds 10 to 15 kt veering to southeast.
waves 2 to 4 ft subsiding to 1 to 2 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
3 to 5 ft building to 6 to 9 ft occasionally to 12 ft. 
.wednesday...southwest winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft.  

$$

fzus63 kmqt 031419
glfls 
expires:202610032230;;466388

open lake forecast for lake superior
national weather service marquette mi
1019 am edt sat oct 3 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...

high pressure of 30.3 inches over the mackinac straits this morning 
shifts east to the mouth of the st. lawrence river by this evening. 
in response, a 29.8 inch clipper moving through the canadian 
prairies this morning skirts along lake superior's north shore 
tonight and tomorrow, sending elevated northwesterly surface winds 
across lake superior tomorrow afternoon and evening. behind the 
clipper, 30.3 inch high pressure quickly returns to the northern 
plains on sunday and moves overhead on monday. behind this high 
pressure ridging, another 29.7 inch clipper low moves east over the 
canadian prairies before passing to the north of lake superior at 
29.6 inches late tuesday and tuesday night. remnant troughing of 
29.9 inches remains over lake superior through thursday.




lsz162-032230-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1019 am edt sat oct 3 2026 /919 am cdt sat oct 3 2026/

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

$$

fzus63 kmqt 031419
glfls 
expires:202610032230;;466389

open lake forecast for lake superior
national weather service marquette mi
1019 am edt sat oct 3 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...

high pressure of 30.3 inches over the mackinac straits this morning 
shifts east to the mouth of the st. lawrence river by this evening. 
in response, a 29.8 inch clipper moving through the canadian 
prairies this morning skirts along lake superior's north shore 
tonight and tomorrow, sending elevated northwesterly surface winds 
across lake superior tomorrow afternoon and evening. behind the 
clipper, 30.3 inch high pressure quickly returns to the northern 
plains on sunday and moves overhead on monday. behind this high 
pressure ridging, another 29.7 inch clipper low moves east over the 
canadian prairies before passing to the north of lake superior at 
29.6 inches late tuesday and tuesday night. remnant troughing of 
29.9 inches remains over lake superior through thursday.




lsz263-032230-
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-
1019 am edt sat oct 3 2026

.rest of today...south winds 5 to 15 knots increasing to 10 to
20 knots in the afternoon, then becoming southeast 15 to 25 knots
late. a chance of showers. waves calm to 2 feet building to 2 to
4 feet. 
.tonight...south winds 20 to 30 knots becoming southwest 15 to
25 knots after midnight, then veering west late. rain likely
through midnight, then a slight chance of showers after midnight.
waves building to 3 to 6 feet occasionally to 8 feet. 
.sunday...northwest winds 20 to 30 knots backing west in the
afternoon, then diminishing to 15 to 25 knots late. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 5 feet occasionally to 7 feet. 
.sunday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves subsiding to 2 to 4 feet. 
.monday...northwest winds 10 to 20 knots becoming southwest 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 1 to 3 feet. 
.tuesday...south winds 20 to 30 knots becoming west 15 to
25 knots. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.wednesday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 031419
glfls 
expires:202610032230;;466390

open lake forecast for lake superior
national weather service marquette mi
1019 am edt sat oct 3 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...

high pressure of 30.3 inches over the mackinac straits this morning 
shifts east to the mouth of the st. lawrence river by this evening. 
in response, a 29.8 inch clipper moving through the canadian 
prairies this morning skirts along lake superior's north shore 
tonight and tomorrow, sending elevated northwesterly surface winds 
across lake superior tomorrow afternoon and evening. behind the 
clipper, 30.3 inch high pressure quickly returns to the northern 
plains on sunday and moves overhead on monday. behind this high 
pressure ridging, another 29.7 inch clipper low moves east over the 
canadian prairies before passing to the north of lake superior at 
29.6 inches late tuesday and tuesday night. remnant troughing of 
29.9 inches remains over lake superior through thursday.




lsz264-032230-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1019 am edt sat oct 3 2026

.rest of today...south winds 5 to 15 knots becoming southeast
10 to 20 knots late. a chance of showers. waves calm to 2 feet
building to 1 to 3 feet. 
.tonight...south winds 15 to 25 knots becoming west 20 to
30 knots late. rain likely through midnight, then a chance of
showers after midnight. waves building to 3 to 6 feet
occasionally to 8 feet. 
.sunday...northwest winds 20 to 30 knots. waves building to 6 to
9 feet occasionally to 11 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.sunday night...northwest winds 20 to 30 knots diminishing to
15 to 25 knots after midnight. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 
.monday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...southwest winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves calm to 2 feet. 
.tuesday...south winds 15 to 25 knots veering west. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
2 to 4 feet. 
.wednesday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 031419
glfls 
expires:202610032230;;466391

open lake forecast for lake superior
national weather service marquette mi
1019 am edt sat oct 3 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...

high pressure of 30.3 inches over the mackinac straits this morning 
shifts east to the mouth of the st. lawrence river by this evening. 
in response, a 29.8 inch clipper moving through the canadian 
prairies this morning skirts along lake superior's north shore 
tonight and tomorrow, sending elevated northwesterly surface winds 
across lake superior tomorrow afternoon and evening. behind the 
clipper, 30.3 inch high pressure quickly returns to the northern 
plains on sunday and moves overhead on monday. behind this high 
pressure ridging, another 29.7 inch clipper low moves east over the 
canadian prairies before passing to the north of lake superior at 
29.6 inches late tuesday and tuesday night. remnant troughing of 
29.9 inches remains over lake superior through thursday.




lsz265-032230-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1019 am edt sat oct 3 2026

...gale watch in effect from sunday morning through sunday
evening...

.rest of today...south winds 10 to 20 knots becoming southeast
15 to 25 knots late. a chance of rain by mid afternoon. waves
calm to 2 feet building to 1 to 3 feet. 
.tonight...south winds 20 to 30 knots increasing to gales to
35 knots after midnight, then veering west late. rain likely
through midnight, then a chance of showers after midnight. waves
building to 3 to 6 feet occasionally to 8 feet. 
.sunday...northwest gales to 40 knots becoming west gales to
35 knots late. waves building to 5 to 9 feet occasionally to
11 feet. 
.sunday night...northwest gales to 35 knots diminishing to 20 to
30 knots after midnight. waves subsiding to 4 to 8 feet
occasionally to 10 feet. 
.monday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...south winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves calm to 2 feet. 
.tuesday...south winds 20 to 30 knots veering west. waves
building to 3 to 5 feet occasionally to 7 feet, then subsiding to
1 to 3 feet. 
.wednesday...west gales to 35 knots diminishing to 20 to
30 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 031419
glfls 
expires:202610032230;;466392

open lake forecast for lake superior
national weather service marquette mi
1019 am edt sat oct 3 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...

high pressure of 30.3 inches over the mackinac straits this morning 
shifts east to the mouth of the st. lawrence river by this evening. 
in response, a 29.8 inch clipper moving through the canadian 
prairies this morning skirts along lake superior's north shore 
tonight and tomorrow, sending elevated northwesterly surface winds 
across lake superior tomorrow afternoon and evening. behind the 
clipper, 30.3 inch high pressure quickly returns to the northern 
plains on sunday and moves overhead on monday. behind this high 
pressure ridging, another 29.7 inch clipper low moves east over the 
canadian prairies before passing to the north of lake superior at 
29.6 inches late tuesday and tuesday night. remnant troughing of 
29.9 inches remains over lake superior through thursday.




lsz266-032230-
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-
1019 am edt sat oct 3 2026

...gale watch in effect from sunday morning through sunday
evening...

.rest of today...south winds 10 to 20 knots becoming southeast
15 to 25 knots late. a chance of showers. waves calm to 2 feet
building to 1 to 3 feet, then subsiding to calm to 2 feet. 
.tonight...south winds 20 to 30 knots increasing to gales to
35 knots after midnight, then becoming southwest 20 to 30 knots
late. rain. waves building to 4 to 8 feet occasionally to
10 feet. 
.sunday...northwest gales to 35 knots. a slight chance of showers
through early afternoon. waves building to 8 to 12 feet
occasionally to 15 feet. 
.sunday night...northwest gales to 35 knots diminishing to 20 to
30 knots after midnight. a slight chance of showers through
midnight. waves subsiding to 6 to 9 feet occasionally to 11 feet.
.monday...northwest winds 15 to 25 knots diminishing to 10 to
20 knots by mid afternoon. waves subsiding to 2 to 4 feet. 
.monday night...northwest winds 5 to 15 knots becoming south
10 to 20 knots after midnight. waves subsiding to calm to 2 feet.
.tuesday...south winds 20 to 30 knots becoming southwest gales to
35 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 
.wednesday...west winds 20 to 30 knots diminishing to 15 to
25 knots. waves subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 031419
glfls 
expires:202610032230;;466393

open lake forecast for lake superior
national weather service marquette mi
1019 am edt sat oct 3 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...

high pressure of 30.3 inches over the mackinac straits this morning 
shifts east to the mouth of the st. lawrence river by this evening. 
in response, a 29.8 inch clipper moving through the canadian 
prairies this morning skirts along lake superior's north shore 
tonight and tomorrow, sending elevated northwesterly surface winds 
across lake superior tomorrow afternoon and evening. behind the 
clipper, 30.3 inch high pressure quickly returns to the northern 
plains on sunday and moves overhead on monday. behind this high 
pressure ridging, another 29.7 inch clipper low moves east over the 
canadian prairies before passing to the north of lake superior at 
29.6 inches late tuesday and tuesday night. remnant troughing of 
29.9 inches remains over lake superior through thursday.




lsz267-032230-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1019 am edt sat oct 3 2026

...gale watch in effect from sunday morning through sunday
evening...

.rest of today...south winds 10 to 20 knots backing southeast
late. a chance of rain by mid afternoon. waves calm to 2 feet
building to 1 to 3 feet. 
.tonight...south winds 15 to 25 knots increasing to 20 to
30 knots after midnight, then veering southwest late. rain. waves
building to 4 to 7 feet occasionally to 9 feet. 
.sunday...west gales to 35 knots becoming northwest gales to
40 knots in the afternoon. a chance of showers through early
afternoon. waves building to 10 to 14 feet occasionally to
18 feet. 
.sunday night...northwest gales to 35 knots. a chance of showers
through midnight. waves subsiding to 7 to 10 feet occasionally to
13 feet. 
.monday...northwest winds 20 to 30 knots diminishing to 15 to
25 knots by mid afternoon. waves subsiding to 3 to 5 feet
occasionally to 7 feet. 
.monday night...northwest winds 5 to 15 knots backing south after
midnight. waves subsiding to calm to 2 feet. 
.tuesday...south winds 20 to 30 knots veering southwest. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 5 feet occasionally to 7 feet. 
.wednesday...west winds 15 to 25 knots. waves building to 3 to
6 feet occasionally to 8 feet, then subsiding to 2 to 4 feet. 

$$