fzus63 kdtx 191945
glflh 
expires:202609200345;;725921

open lake forecast for lake huron
national weather service detroit/pontiac mi
345 pm edt sat sep 19 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a weak low pressure system follows a stalled front
from the central plains into the ohio valley this weekend. a
broad area of high pressure then builds into northern ontario and
the northern great lakes sunday into monday.


lhz361-362-200345-
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-
345 pm edt sat sep 19 2026

.tonight...east winds 5 to 10 knots in the evening becoming light
and variable...then becoming northeast 5 to 10 knots early in the
morning. waves 1 to 3 feet. 
.sunday...northeast winds 5 to 10 knots becoming north 10 to
15 knots in the late morning and afternoon. waves 1 to 3 feet. 
.sunday night...north winds 10 to 15 knots becoming northeast
15 to 20 knots in the late evening and overnight. waves 3 to
5 feet. 
.monday...northeast winds 15 to 20 knots decreasing to 10 to
15 knots in the late morning and afternoon. waves 3 to 5 feet. 
.monday night...northeast winds 10 to 15 knots becoming east
15 to 20 knots in the late evening and overnight. waves 3 to
5 feet. 
.tuesday...east winds 15 to 20 knots. waves 3 to 5 feet. 
.wednesday...east winds 15 to 20 knots decreasing to 10 to
15 knots by midnight. waves 3 to 5 feet. 
.thursday...east winds 10 to 15 knots decreasing to 5 to 10 knots
. waves 2 to 4 feet subsiding to 1 to 3 feet . 


$$

fzus63 kdtx 191945
glflh 
expires:202609200345;;725922

open lake forecast for lake huron
national weather service detroit/pontiac mi
345 pm edt sat sep 19 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...a weak low pressure system follows a stalled front
from the central plains into the ohio valley this weekend. a
broad area of high pressure then builds into northern ontario and
the northern great lakes sunday into monday.


lhz363-462>464-200345-
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-
345 pm edt sat sep 19 2026

.tonight...east winds 5 to 10 knots. waves 1 to 3 feet. 
.sunday...northeast winds 10 to 15 knots increasing to 15 to
20 knots in the afternoon. waves 1 to 3 feet building to 3 to
5 feet in the afternoon. 
.sunday night...northeast winds 15 to 20 knots. waves 4 to
6 feet. 
.monday...northeast winds 15 to 20 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.monday night...northeast winds 15 to 20 knots. waves 4 to
6 feet. waves occasionally around 8 feet. 
.tuesday...northeast winds 15 to 20 knots with gusts to around
30 knots becoming east 20 to 25 knots with gusts to around
30 knots late in the afternoon. waves 4 to 6 feet. 
.wednesday...east winds 15 to 20 knots. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.thursday...east winds 10 to 15 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet . 


$$

fzus63 kmkx 192046
glflm 
expires:202609200315;;728651

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
346 pm cdt sat sep 19 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 29.8 inches over central iowa will track to 
east central illinois by sunday morning, then settle over the 
southern ohio valley for next week. meanwhile, high pressure 
around 30.3 inches over manitoba will strengthen and track across 
ontario for sunday and monday, then to quebec for tuesday and 
wednesday. modest east winds tonight will become breezy east to 
northeast winds sunday through wednesday with the highest winds 
over the south half. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-200315-
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-
346 pm cdt sat sep 19 2026

sheboygan wi to pentwater mi south...

.tonight...east winds 10 to 15 kt becoming northeast 10 to 20 kt.
scattered showers with a chance of thunderstorms this evening,
then showers with a chance of thunderstorms overnight. waves 3 to
5 ft. 
.sunday...northeast winds 15 to 25 kt increasing to 30 kt.
scattered showers. waves 4 to 6 ft occasionally to 8 ft building
to 7 to 10 ft occasionally to 13 ft. 
.sunday night...northeast winds to 30 kt becoming east. waves
8 to 12 ft occasionally to 16 ft subsiding to 6 to 9 ft
occasionally to 12 ft. 
.monday...east winds to 30 kt becoming northeast. waves 7 to
10 ft occasionally to 13 ft. 
.monday night...east winds to 30 kt. waves 6 to 9 ft occasionally
to 12 ft. 
.tuesday...east winds to 30 kt becoming northeast. waves 7 to
10 ft occasionally to 13 ft. 
.tuesday night...northeast winds to 30 kt becoming east 15 to
25 kt. waves 6 to 9 ft occasionally to 12 ft. 
.wednesday...northeast winds 15 to 25 kt. waves 4 to 7 ft
occasionally to 9 ft. 
.thursday...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. waves 3 to 5 ft.  

$$

fzus63 kmkx 192046
glflm 
expires:202609200315;;728650

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
346 pm cdt sat sep 19 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 29.8 inches over central iowa will track to 
east central illinois by sunday morning, then settle over the 
southern ohio valley for next week. meanwhile, high pressure 
around 30.3 inches over manitoba will strengthen and track across 
ontario for sunday and monday, then to quebec for tuesday and 
wednesday. modest east winds tonight will become breezy east to 
northeast winds sunday through wednesday with the highest winds 
over the south half. 


lmz261-362-364-366-563-565-567-868-200315-
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-
346 pm cdt sat sep 19 2026

sheboygan wi to pentwater mi north...

.tonight...east winds 10 to 20 kt becoming northeast. scattered
showers this evening. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.sunday...northeast winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft building to 6 to 9 ft occasionally
to 12 ft. 
.sunday night...northeast winds to 30 kt diminishing to 15 to
25 kt after midnight, then becoming east 10 to 20 kt late. waves
7 to 10 ft occasionally to 13 ft subsiding to 4 to 7 ft
occasionally to 9 ft. 
.monday...east winds 15 to 25 kt becoming northeast. waves 4 to
6 ft occasionally to 8 ft. 
.monday night...east winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.tuesday...east winds 15 to 25 kt becoming northeast to 30 kt.
waves 3 to 5 ft. 
.tuesday night...east winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.wednesday...east winds 15 to 25 kt becoming northeast to 30 kt.
waves 3 to 5 ft. 
.thursday...east winds 10 to 20 kt becoming northeast. waves 1 to
3 ft.  

$$

fzus63 kmqt 192001
glfls 
expires:202609200800;;726277

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat sep 19 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...

weak 30.0 inch troughing currently extending across ontario, just 
west of lake superior, crosses the lake this evening through the 
first half of tonight. into sunday, a 30.2 inch high over the 
canadian prairie builds to 30.4 inches as it moves into northwestern 
ontario. this high pressure center slowly builds to 30.5 inches as 
it shifts into quebec by midday tuesday, trailing a 30.4 inch ridge 
over lake superior. the high builds further to 30.6 inches wednesday 
as it progresses eastward.




lsz264-200800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt sat sep 19 2026

.late this afternoon...southeast winds less than 10 knots. waves
calm to 2 feet. 
.tonight...south winds less than 10 knots becoming north 10 to
20 knots after midnight, then becoming northeast 15 to 25 knots
late. a slight chance of showers. waves building to 2 to 4 feet. 
.sunday...northeast winds 15 to 25 knots diminishing to 10 to
20 knots late. waves building to 3 to 6 feet occasionally to
8 feet, then subsiding to 1 to 3 feet. 
.sunday night...northeast winds 5 to 15 knots veering east after
midnight. waves subsiding to calm to 2 feet. 
.monday...east winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...east winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots veering southeast after
midnight. waves calm to 2 feet. 
.wednesday...southeast winds 5 to 15 knots. waves calm to 2 feet.
.thursday...southeast winds 5 to 15 knots veering south. waves
calm to 2 feet. 

$$

fzus63 kmqt 192001
glfls 
expires:202609200800;;726278

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat sep 19 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...

weak 30.0 inch troughing currently extending across ontario, just 
west of lake superior, crosses the lake this evening through the 
first half of tonight. into sunday, a 30.2 inch high over the 
canadian prairie builds to 30.4 inches as it moves into northwestern 
ontario. this high pressure center slowly builds to 30.5 inches as 
it shifts into quebec by midday tuesday, trailing a 30.4 inch ridge 
over lake superior. the high builds further to 30.6 inches wednesday 
as it progresses eastward.




lsz265-200800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt sat sep 19 2026

.late this afternoon...southeast winds 10 to 20 knots. waves calm
to 2 feet. 
.tonight...southeast winds 5 to 15 knots backing north after
midnight, then increasing to 15 to 25 knots late. a slight chance
of showers after midnight. waves building to 1 to 3 feet. 
.sunday...northeast winds to 30 knots with a few gale force gusts
to 35 knots possible diminishing to 20 to 30 knots late. waves
building to 3 to 6 feet occasionally to 8 feet. 
.sunday night...northeast winds 15 to 25 knots veering east after
midnight. waves subsiding to 2 to 4 feet. 
.monday...east winds 15 to 25 knots diminishing to 10 to 20 knots
by mid afternoon. waves subsiding to calm to 2 feet. 
.monday night...east winds 10 to 20 knots. waves calm to 2 feet. 
.tuesday...east winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. waves calm to 2 feet. 
.tuesday night...east winds 15 to 25 knots becoming southeast
10 to 20 knots after midnight. waves calm to 2 feet. 
.wednesday...east winds 15 to 25 knots becoming southeast 10 to
20 knots. waves calm to 2 feet. 
.thursday...southeast winds 5 to 15 knots veering south. waves
calm to 2 feet. 

$$

fzus63 kmqt 192001
glfls 
expires:202609200800;;726279

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat sep 19 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...

weak 30.0 inch troughing currently extending across ontario, just 
west of lake superior, crosses the lake this evening through the 
first half of tonight. into sunday, a 30.2 inch high over the 
canadian prairie builds to 30.4 inches as it moves into northwestern 
ontario. this high pressure center slowly builds to 30.5 inches as 
it shifts into quebec by midday tuesday, trailing a 30.4 inch ridge 
over lake superior. the high builds further to 30.6 inches wednesday 
as it progresses eastward.




lsz266-200800-
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-
401 pm edt sat sep 19 2026

.late this afternoon...east winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...southeast winds 5 to 15 knots backing north after
midnight, then increasing to 15 to 25 knots late. a slight chance
of showers after midnight. waves building to 1 to 3 feet. 
.sunday...northeast winds 20 to 30 knots becoming north 15 to
25 knots late. waves building to 3 to 6 feet occasionally to
8 feet. 
.sunday night...northeast winds 10 to 20 knots becoming east
15 to 25 knots after midnight, then diminishing to 10 to 20 knots
late. waves subsiding to 2 to 4 feet, then building to 3 to
5 feet occasionally to 7 feet. 
.monday...east winds 10 to 20 knots. waves subsiding to calm to
2 feet. 
.monday night...east winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots becoming southeast
10 to 20 knots after midnight. waves calm to 2 feet. 
.wednesday...east winds 10 to 20 knots veering southeast. waves
calm to 2 feet. 
.thursday...southeast winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 192001
glfls 
expires:202609200800;;726280

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat sep 19 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...

weak 30.0 inch troughing currently extending across ontario, just 
west of lake superior, crosses the lake this evening through the 
first half of tonight. into sunday, a 30.2 inch high over the 
canadian prairie builds to 30.4 inches as it moves into northwestern 
ontario. this high pressure center slowly builds to 30.5 inches as 
it shifts into quebec by midday tuesday, trailing a 30.4 inch ridge 
over lake superior. the high builds further to 30.6 inches wednesday 
as it progresses eastward.




lsz267-200800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt sat sep 19 2026

.late this afternoon...east winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...southeast winds 5 to 15 knots backing north after
midnight, then increasing to 10 to 20 knots late. waves calm to
2 feet. 
.sunday...northeast winds 15 to 25 knots backing north late.
waves building to 3 to 6 feet occasionally to 8 feet. 
.sunday night...northeast winds 15 to 25 knots veering east after
midnight, then diminishing to 10 to 20 knots late. waves
subsiding to 1 to 3 feet. 
.monday...east winds 5 to 15 knots backing northeast by mid
afternoon. waves subsiding to calm to 2 feet. 
.monday night...northeast winds 10 to 20 knots veering east after
midnight. waves calm to 2 feet. 
.tuesday...east winds 5 to 15 knots backing northeast by mid
afternoon. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots becoming southeast
10 to 20 knots after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots becoming southeast 10 to
20 knots. waves calm to 2 feet. 
.thursday...southeast winds 10 to 20 knots diminishing to 5 to
15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 192001
glfls 
expires:202609200800;;726275

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat sep 19 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...

weak 30.0 inch troughing currently extending across ontario, just 
west of lake superior, crosses the lake this evening through the 
first half of tonight. into sunday, a 30.2 inch high over the 
canadian prairie builds to 30.4 inches as it moves into northwestern 
ontario. this high pressure center slowly builds to 30.5 inches as 
it shifts into quebec by midday tuesday, trailing a 30.4 inch ridge 
over lake superior. the high builds further to 30.6 inches wednesday 
as it progresses eastward.




lsz162-200800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt sat sep 19 2026 /301 pm cdt sat sep 19 2026/

.late this afternoon...east winds 5 to 15 knots. waves calm to
2 feet. 
.tonight...northeast winds 5 to 15 knots backing north after
midnight, then becoming northeast 15 to 25 knots late. a slight
chance of showers after midnight. waves building to 1 to 3 feet. 
.sunday...northeast winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon, then veering east 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...east winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet. 
.monday...east winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. waves building to 2 to 4 feet. 
.monday night...east winds 15 to 25 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.tuesday...east winds 5 to 15 knots increasing to 15 to 25 knots
by mid afternoon. waves calm to 2 feet. 
.tuesday night...east winds 10 to 20 knots becoming southeast
5 to 15 knots after midnight. waves calm to 2 feet. 
.wednesday...east winds 10 to 20 knots. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots backing northeast. waves
calm to 2 feet. 

$$

fzus63 kmqt 192001
glfls 
expires:202609200800;;726276

open lake forecast for lake superior
national weather service marquette mi
401 pm edt sat sep 19 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...

weak 30.0 inch troughing currently extending across ontario, just 
west of lake superior, crosses the lake this evening through the 
first half of tonight. into sunday, a 30.2 inch high over the 
canadian prairie builds to 30.4 inches as it moves into northwestern 
ontario. this high pressure center slowly builds to 30.5 inches as 
it shifts into quebec by midday tuesday, trailing a 30.4 inch ridge 
over lake superior. the high builds further to 30.6 inches wednesday 
as it progresses eastward.




lsz263-200800-
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-
401 pm edt sat sep 19 2026

.late this afternoon...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.tonight...east winds 5 to 15 knots becoming north 10 to 20 knots
after midnight, then becoming northeast 15 to 25 knots late. a
slight chance of showers. waves building to 2 to 4 feet. 
.sunday...northeast winds 15 to 25 knots increasing to 20 to
30 knots in the afternoon. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 5 feet
occasionally to 7 feet. 
.sunday night...northeast winds 15 to 25 knots becoming east 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.monday...east winds 5 to 15 knots increasing to 15 to 25 knots
by mid afternoon. waves building to 1 to 3 feet. 
.monday night...east winds 15 to 25 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.tuesday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves calm to 2 feet. 
.tuesday night...east winds 10 to 20 knots becoming southeast
5 to 15 knots after midnight. waves calm to 2 feet. 
.wednesday...east winds 10 to 20 knots veering southeast. waves
calm to 2 feet. 
.thursday...southeast winds 5 to 15 knots backing east. waves
calm to 2 feet. 

$$