fzus63 kdtx 041903
glflh 
expires:202609050315;;906058

open lake forecast for lake huron
national weather service detroit/pontiac mi
303 pm edt fri sep 4 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 lingering chance for showers and thunderstorms
through tonight as a frontal boundary slowly sags south across
far lower michigan. a large area of high pressure anchored over
ontario will then bring a stretch of drier conditions this
weekend.


lhz361-362-050315-
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-
303 pm edt fri sep 4 2026

.tonight...light and variable winds becoming northeast 5 to
10 knots. waves 2 feet or less. 
.saturday...northeast winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.saturday night...light and variable winds. waves 2 feet or less.
.sunday...light and variable winds. waves 2 feet or less. 
.sunday night...light and variable winds. waves 2 feet or less. 
.monday...light and variable winds becoming southeast 5 to
10 knots late in the evening. waves 2 feet or less. 
.tuesday...southeast winds 5 to 10 knots increasing to 15 to
20 knots. a chance of showers. rain showers likely by midnight.
waves 1 to 3 feet building to 2 to 4 feet . 
.wednesday...south winds 15 to 20 knots with gusts to around
30 knots veering to the west with gusts to around 30 knots .
showers likely early in the morning. a chance of showers in the
late morning and early afternoon. waves 3 to 5 feet. 


$$

fzus63 kdtx 041903
glflh 
expires:202609050315;;906059

open lake forecast for lake huron
national weather service detroit/pontiac mi
303 pm edt fri sep 4 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 lingering chance for showers and thunderstorms
through tonight as a frontal boundary slowly sags south across
far lower michigan. a large area of high pressure anchored over
ontario will then bring a stretch of drier conditions this
weekend.


lhz363-462-050315-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
303 pm edt fri sep 4 2026

.tonight...northeast winds 5 to 10 knots. waves 2 feet or less. 
.saturday...northeast winds 5 to 10 knots. waves 2 feet or less. 
.saturday night...northeast winds 5 to 10 knots. waves 2 feet or
less. 
.sunday...northeast winds 5 to 10 knots until late afternoon
becoming light and variable. waves 2 feet or less. 
.sunday night...light and variable winds. waves 2 feet or less. 
.monday...light and variable winds becoming southeast 5 to
10 knots late in the evening. waves 2 feet or less. 
.tuesday...southeast winds 5 to 10 knots becoming south 15 to
20 knots. a chance of showers by midnight. waves 1 to 3 feet
building to 2 to 4 feet by midnight. 
.wednesday...southwest winds 15 to 20 knots with gusts to around
30 knots veering to the west by midnight. a chance of showers
until afternoon. waves 3 to 5 feet. 


$$

fzus63 kmkx 041937
glflm 
expires:202609050315;;907346

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
237 pm cdt fri sep 4 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...

light winds over lake michigan will shift east northeasterly 
tonight with the slow passage of a cold front. areas of dense fog
may form over central and southern lake michigan after the frontal
passage and continue through saturday morning. as high pressure 
around 30.1 inches builds into the northern great lakes from 
ontario, modest northeast winds will develop for saturday and 
saturday evening for central and southern lake michigan. light and
variable winds are then expected on sunday and monday as the high
slowly moves from the northern great lakes to the lower great 
lakes.


lmz261-362-364-366-563-565-567-868-050315-
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-
237 pm cdt fri sep 4 2026

sheboygan wi to pentwater mi north...

.tonight...northeast winds 10 to 15 kt becoming east. slight
chance of showers. areas of fog. waves 1 to 2 ft. 
.saturday...east winds 10 to 15 kt becoming northeast 10 to
20 kt. waves 1 to 3 ft. 
.saturday night...northeast winds 10 to 20 kt becoming east 10 to
15 kt after midnight, then diminishing to 5 to 10 kt late. waves
1 to 3 ft. 
.sunday...east winds 5 to 10 kt increasing to 10 to 15 kt. waves
1 to 2 ft. 
.sunday night...east winds 10 to 15 kt becoming southeast 5 to
10 kt. waves 1 to 2 ft. 
.monday...south winds 10 to 15 kt. waves 1 to 2 ft. 
.monday night...southeast winds 5 to 10 kt increasing to 10 to
20 kt. waves 1 to 2 ft building to 2 to 4 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. chance of
showers. waves 4 to 6 ft occasionally to 8 ft building to 5 to
8 ft occasionally to 10 ft. 
.wednesday...southwest winds to 30 kt becoming west gales to
40 kt. waves 4 to 7 ft occasionally to 9 ft subsiding to 4 to
6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 041937
glflm 
expires:202609050315;;907347

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
237 pm cdt fri sep 4 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...

light winds over lake michigan will shift east northeasterly 
tonight with the slow passage of a cold front. areas of dense fog
may form over central and southern lake michigan after the frontal
passage and continue through saturday morning. as high pressure 
around 30.1 inches builds into the northern great lakes from 
ontario, modest northeast winds will develop for saturday and 
saturday evening for central and southern lake michigan. light and
variable winds are then expected on sunday and monday as the high
slowly moves from the northern great lakes to the lower great 
lakes.


lmz080-669-671-673-675-777-779-870-872-874-876-878-050315-
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-
237 pm cdt fri sep 4 2026

sheboygan wi to pentwater mi south...

.tonight...east winds 5 to 10 kt becoming northeast. chance of
showers and thunderstorms this evening, then slight chance of
showers and thunderstorms overnight. areas of fog overnight. 
waves 1 to 2 ft. 
.saturday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. areas of fog in the morning. waves 1 to 3 ft. 
.saturday night...north winds 10 to 20 kt becoming east 10 to
15 kt. waves 2 to 4 ft. 
.sunday...east winds 10 to 15 kt becoming northeast. waves 2 to
4 ft. 
.sunday night...northeast winds 10 to 15 kt becoming southeast.
waves 1 to 3 ft. 
.monday...southeast winds 10 to 15 kt. waves 1 to 3 ft. 
.monday night...east winds 10 to 15 kt becoming southeast 10 to
20 kt. waves 1 to 2 ft building to 2 to 4 ft. 
.tuesday...south winds 15 to 25 kt increasing to 30 kt. waves
4 to 6 ft occasionally to 8 ft building to 4 to 7 ft occasionally
to 9 ft. 
.wednesday...southwest winds 15 to 25 kt becoming west to 30 kt.
chance of showers. waves 4 to 7 ft occasionally to 9 ft subsiding
to 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmqt 042001
glfls 
expires:202609050800;;908142

open lake forecast for lake superior
national weather service marquette mi
401 pm edt fri sep 4 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 ridging builds to 30.1 inches over lake superior by 
saturday afternoon, remaining through sunday night. the ridge 
briefly builds further to 30.2 inches on monday as a 30.4 inch high 
passes eastward over far northern ontario. meanwhile, a 29.6 inch 
low develops off the northern rockies. the low then tracks northeast 
to james bay, deepening to 29.3 inches by wednesday afternoon. this 
sends a 29.7 inch trough over lake superior tuesday night and 
wednesday.




lsz162-050800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 pm edt fri sep 4 2026 /301 pm cdt fri sep 4 2026/

.late this afternoon...northeast winds 15 to 25 knots. a slight
chance of showers. waves 3 to 5 feet occasionally to 7 feet
subsiding to 2 to 4 feet. 
.tonight...northeast winds 15 to 25 knots diminishing to 10 to
20 knots after midnight. patchy fog after midnight. waves
subsiding to calm to 2 feet. 
.saturday...northeast winds 10 to 20 knots. patchy fog through
early afternoon. waves calm to 2 feet. 
.saturday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...east winds 5 to 15 knots backing northeast by mid
afternoon. a slight chance of showers by mid afternoon. waves
calm to 2 feet. 
.sunday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.monday...east winds 10 to 20 knots increasing to gales to
35 knots by mid afternoon. a chance of showers. waves building to
4 to 7 feet occasionally to 9 feet. 
.monday night...east gales to 35 knots becoming southeast 20 to
30 knots after midnight. showers. waves building to 5 to 8 feet
occasionally to 10 feet. 
.tuesday...south winds 20 to 30 knots veering west. a chance of
showers and thunderstorms. waves subsiding to 1 to 3 feet. 
.wednesday...west gales to 40 knots becoming northwest 20 to
30 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to calm to 2 feet. 

$$

fzus63 kmqt 042001
glfls 
expires:202609050800;;908143

open lake forecast for lake superior
national weather service marquette mi
401 pm edt fri sep 4 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 ridging builds to 30.1 inches over lake superior by 
saturday afternoon, remaining through sunday night. the ridge 
briefly builds further to 30.2 inches on monday as a 30.4 inch high 
passes eastward over far northern ontario. meanwhile, a 29.6 inch 
low develops off the northern rockies. the low then tracks northeast 
to james bay, deepening to 29.3 inches by wednesday afternoon. this 
sends a 29.7 inch trough over lake superior tuesday night and 
wednesday.




lsz263-050800-
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 fri sep 4 2026

.late this afternoon...northeast winds 15 to 25 knots. a slight
chance of showers. waves 2 to 4 feet. 
.tonight...northeast winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. a slight chance of showers through
midnight. patchy fog after midnight. waves subsiding to calm to
2 feet. 
.saturday...northeast winds 5 to 15 knots increasing to 10 to
20 knots late. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots becoming southeast
less than 10 knots late. waves calm to 2 feet. 
.sunday...southeast winds less than 10 knots becoming east 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.sunday night...east winds 5 to 15 knots becoming south 10 to
20 knots after midnight. waves calm to 2 feet. 
.monday...east winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. a chance of showers. waves building to 3 to
6 feet occasionally to 8 feet. 
.monday night...east winds 20 to 30 knots becoming southeast
gales to 35 knots after midnight. a chance of showers through
midnight, then showers likely after midnight. waves building to
4 to 7 feet occasionally to 9 feet. 
.tuesday...south gales to 35 knots veering southwest. showers. a
chance of showers. waves building to 5 to 8 feet occasionally to
10 feet, then subsiding to 2 to 4 feet. 
.wednesday...west gales to 40 knots veering northwest. waves
building to 4 to 7 feet occasionally to 9 feet, then subsiding to
3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 042001
glfls 
expires:202609050800;;908144

open lake forecast for lake superior
national weather service marquette mi
401 pm edt fri sep 4 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 ridging builds to 30.1 inches over lake superior by 
saturday afternoon, remaining through sunday night. the ridge 
briefly builds further to 30.2 inches on monday as a 30.4 inch high 
passes eastward over far northern ontario. meanwhile, a 29.6 inch 
low develops off the northern rockies. the low then tracks northeast 
to james bay, deepening to 29.3 inches by wednesday afternoon. this 
sends a 29.7 inch trough over lake superior tuesday night and 
wednesday.




lsz264-050800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 pm edt fri sep 4 2026

.late this afternoon...east winds 10 to 20 knots. a slight chance
of showers. waves 1 to 3 feet. 
.tonight...northeast winds 5 to 15 knots. waves subsiding to calm
to 2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots becoming southeast
less than 10 knots after midnight. waves calm to 2 feet. 
.sunday...southeast winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.sunday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.monday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves building to 2 to 4 feet. 
.monday night...east winds 15 to 25 knots becoming southeast
20 to 30 knots after midnight. a chance of showers through
midnight, then showers likely after midnight. waves building to
4 to 7 feet occasionally to 9 feet. 
.tuesday...south gales to 40 knots. showers. a chance of showers.
waves building to 8 to 11 feet occasionally to 14 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.wednesday...west gales to 45 knots becoming northwest gales to
40 knots. waves building to 5 to 8 feet occasionally to 10 feet,
then subsiding to 3 to 5 feet occasionally to 7 feet. 

$$

fzus63 kmqt 042001
glfls 
expires:202609050800;;908145

open lake forecast for lake superior
national weather service marquette mi
401 pm edt fri sep 4 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 ridging builds to 30.1 inches over lake superior by 
saturday afternoon, remaining through sunday night. the ridge 
briefly builds further to 30.2 inches on monday as a 30.4 inch high 
passes eastward over far northern ontario. meanwhile, a 29.6 inch 
low develops off the northern rockies. the low then tracks northeast 
to james bay, deepening to 29.3 inches by wednesday afternoon. this 
sends a 29.7 inch trough over lake superior tuesday night and 
wednesday.




lsz265-050800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 pm edt fri sep 4 2026

.late this afternoon...east winds 10 to 20 knots. a slight chance
of showers. waves 2 to 4 feet. 
.tonight...east winds 10 to 20 knots diminishing to 5 to 15 knots
after midnight, then backing northeast late. a slight chance of
showers. waves subsiding to calm to 2 feet. 
.saturday...east winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon, then diminishing to 5 to 15 knots late. waves
calm to 2 feet. 
.saturday night...east winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.sunday night...southeast winds 10 to 20 knots veering south
after midnight. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots becoming east 10 to 20 knots
by mid afternoon. waves building to 2 to 4 feet. 
.monday night...southeast winds 20 to 30 knots. a chance of
showers. waves building to 4 to 7 feet occasionally to 9 feet. 
.tuesday...south gales to 40 knots diminishing to 20 to 30 knots.
showers. a chance of showers. waves building to 7 to 10 feet
occasionally to 13 feet, then subsiding to 2 to 4 feet. 
.wednesday...west gales to 45 knots becoming northwest gales to
40 knots. waves building to 4 to 7 feet occasionally to 9 feet,
then subsiding to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 042001
glfls 
expires:202609050800;;908146

open lake forecast for lake superior
national weather service marquette mi
401 pm edt fri sep 4 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 ridging builds to 30.1 inches over lake superior by 
saturday afternoon, remaining through sunday night. the ridge 
briefly builds further to 30.2 inches on monday as a 30.4 inch high 
passes eastward over far northern ontario. meanwhile, a 29.6 inch 
low develops off the northern rockies. the low then tracks northeast 
to james bay, deepening to 29.3 inches by wednesday afternoon. this 
sends a 29.7 inch trough over lake superior tuesday night and 
wednesday.




lsz266-050800-
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 fri sep 4 2026

.late this afternoon...east winds 10 to 20 knots. waves 1 to
3 feet. 
.tonight...northeast winds 10 to 20 knots diminishing to 5 to
15 knots after midnight, then veering east late. a slight chance
of showers through midnight. waves subsiding to calm to 2 feet. 
.saturday...east winds 5 to 15 knots backing northeast late.
waves calm to 2 feet. 
.saturday night...north winds 5 to 15 knots veering east late.
waves calm to 2 feet. 
.sunday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.sunday night...southeast winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.monday...south winds 5 to 15 knots becoming east 10 to 20 knots
by mid afternoon. waves building to 2 to 4 feet. 
.monday night...southeast winds 15 to 25 knots increasing to
20 to 30 knots after midnight. a chance of showers. waves
building to 4 to 7 feet occasionally to 9 feet. 
.tuesday...south gales to 40 knots. showers. a chance of showers.
waves building to 8 to 11 feet occasionally to 14 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.wednesday...west gales to 40 knots veering northwest. waves
building to 5 to 8 feet occasionally to 10 feet, then subsiding
to 3 to 6 feet occasionally to 8 feet. 

$$

fzus63 kmqt 042001
glfls 
expires:202609050800;;908147

open lake forecast for lake superior
national weather service marquette mi
401 pm edt fri sep 4 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 ridging builds to 30.1 inches over lake superior by 
saturday afternoon, remaining through sunday night. the ridge 
briefly builds further to 30.2 inches on monday as a 30.4 inch high 
passes eastward over far northern ontario. meanwhile, a 29.6 inch 
low develops off the northern rockies. the low then tracks northeast 
to james bay, deepening to 29.3 inches by wednesday afternoon. this 
sends a 29.7 inch trough over lake superior tuesday night and 
wednesday.




lsz267-050800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 pm edt fri sep 4 2026

.late this afternoon...northeast winds 10 to 20 knots. waves calm
to 2 feet. 
.tonight...northeast winds 5 to 15 knots becoming east 10 to
20 knots after midnight. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots backing north late. waves
calm to 2 feet. 
.saturday night...north winds 5 to 15 knots veering northeast
after midnight, then veering southeast late. waves calm to
2 feet. 
.sunday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.sunday night...southeast winds 5 to 15 knots veering south after
midnight. waves calm to 2 feet. 
.monday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.monday night...southeast winds 10 to 20 knots increasing to
15 to 25 knots after midnight. a chance of showers after
midnight. waves building to 3 to 5 feet occasionally to 7 feet. 
.tuesday...southeast winds 20 to 30 knots veering south. showers.
waves building to 4 to 7 feet occasionally to 9 feet, then
subsiding to 3 to 6 feet occasionally to 8 feet. 
.wednesday...west gales to 35 knots veering northwest. waves
building to 4 to 7 feet occasionally to 9 feet. 

$$