fzus63 kdtx 142001
glflh 
expires:202604150415;;367610

open lake forecast for lake huron
national weather service detroit/pontiac mi
401 pm edt tue apr 14 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 line of showers and thunderstorms will track east-
southeast across the great lakes late tonight, with potential for
strong to severe storms. additional lows through the week
maintain shower and storm chances into the weekend.


lhz363-462>464-150415-
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-
401 pm edt tue apr 14 2026

.tonight...east winds 5 to 10 knots veering to the southeast
early in the morning. a chance of showers and thunderstorms in
the evening...then showers likely and a chance of thunderstorms
after midnight. waves 1 to 3 feet. 
.wednesday...south winds 5 to 10 knots backing to the east late
in the afternoon. a chance of showers in the afternoon. waves
1 to 3 feet. 
.wednesday night...east winds 5 to 10 knots veering to the
southeast by midnight...then backing to the southeast 5 to
10 knots after midnight. showers likely. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots. a chance of showers. waves
1 to 3 feet. 
.thursday night...north winds 5 to 10 knots. a chance of showers
in the evening. waves 1 to 3 feet. 
.friday...north winds 5 to 10 knots veering to the northeast late
in the afternoon...then becoming southeast 10 to 15 knots late in
the evening. waves 1 to 3 feet building to 3 to 5 feet late in
the evening. 
.saturday...south winds 15 to 20 knots increasing to 20 to
25 knots in the late morning and early afternoon...then
decreasing to 15 to 20 knots early in the evening becoming west
20 to 25 knots by midnight. showers in the late morning and early
afternoon. a chance of showers . waves 6 to 9 feet. waves
occasionally around 12 feet. 
.sunday...west winds 20 to 25 knots veering to the northwest by
midnight. gusts to 30 knots. waves 8 to 12 feet. waves
occasionally around 15 feet. 


$$

fzus63 kdtx 142001
glflh 
expires:202604150415;;367609

open lake forecast for lake huron
national weather service detroit/pontiac mi
401 pm edt tue apr 14 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 line of showers and thunderstorms will track east-
southeast across the great lakes late tonight, with potential for
strong to severe storms. additional lows through the week
maintain shower and storm chances into the weekend.


lhz361-362-150415-
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-
401 pm edt tue apr 14 2026

.tonight...east winds 5 to 10 knots. a chance of showers after
midnight. waves 1 to 3 feet. 
.wednesday...north winds 5 to 10 knots. a chance of showers in
the afternoon. waves 1 to 3 feet. 
.wednesday night...northeast winds 5 to 10 knots. a chance of
showers. waves 1 to 3 feet. 
.thursday...north winds 5 to 10 knots. a chance of showers. waves
1 to 3 feet. 
.thursday night...north winds 5 to 10 knots backing to the
northwest after midnight. a chance of showers in the evening.
waves 1 to 3 feet. 
.friday...north winds 5 to 10 knots becoming east 10 to 15 knots
late in the afternoon...then becoming southeast 15 to 20 knots
late in the evening. a chance of showers late in the evening.
waves 1 to 3 feet building to 4 to 6 feet late in the evening.
waves occasionally around 8 feet. 
.saturday...south winds 20 to 25 knots with gusts to around
30 knots becoming west to 30 knots by midnight. showers early in
the morning. a chance of showers. a chance of snow showers by
midnight. waves 8 to 12 feet. waves occasionally around 15 feet. 
.sunday...west winds to 30 knots with gusts to 35 knot gales. a
chance of snow showers early in the morning. waves 10 to 14 feet.
waves occasionally around 18 feet. 


$$

fzus63 kmkx 142014
glflm 
expires:202604150315;;368905

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
314 pm cdt tue apr 14 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...

a stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by thursday morning. winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. today, severe storms are expected over the southern half
to southern two thirds of the lake. hail and gusty winds will be
possible and waterspouts may occur with any tornadic storms from
land that move over the waters. this will be most likely near
the shoreline of wisconsin and illinois. 

the front will clear the lake as a cold front friday, before 
low pressure of 29.6 inches approaches from the west.


lmz870-872-150315-
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-
314 pm cdt tue apr 14 2026

wilmette harbor il to st. joseph mi south to rock island passage
to charlevoix mi...

...dense fog advisory in effect until 7 am cdt wednesday...

.tonight...south winds 15 to 25 kt becoming southwest 10 to
20 kt. areas of dense fog. chance of rain showers and
thunderstorms this evening, then slight chance of rain showers
and thunderstorms overnight. waves 1 to 3 ft. 
.wednesday...southwest winds 10 to 20 kt diminishing to 10 to
15 kt late in the morning, then becoming south 5 to 10 kt early
in the afternoon increasing to 10 to 15 kt late. areas of dense
fog in the morning, then patchy fog in the afternoon. chance of
rain showers and slight chance of thunderstorms in the morning,
then rain showers likely with a chance of thunderstorms in the
afternoon. waves 1 to 3 ft. 
.wednesday night...southeast winds 10 to 15 kt diminishing to
5 to 10 kt. patchy fog in the evening. rain showers likely with a
chance of thunderstorms in the evening, then rain showers with a
chance of thunderstorms overnight. waves 1 to 3 ft. 
.thursday...southwest winds 10 to 20 kt becoming northwest 10 to
15 kt. chance of rain showers. waves 1 to 3 ft. 
.thursday night...northwest winds 5 to 10 kt becoming north.
waves 1 to 3 ft. 
.friday...southeast winds 5 to 10 kt becoming south 10 to 20 kt
in the afternoon. waves 1 to 2 ft building to 2 to 4 ft. 
.friday night...southeast winds 15 to 25 kt becoming south to
30 kt. rain showers with a chance of thunderstorms. waves 4 to
6 ft occasionally to 8 ft building to 5 to 8 ft occasionally to
10 ft. 
.saturday...south winds to 30 kt becoming southwest. rain showers
likely. waves 6 to 9 ft occasionally to 12 ft. 
.sunday...northwest gales to 35 kt diminishing to 30 kt. waves
8 to 12 ft occasionally to 16 ft.  

$$

fzus63 kmkx 142014
glflm 
expires:202604150315;;368900

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
314 pm cdt tue apr 14 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...

a stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by thursday morning. winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. today, severe storms are expected over the southern half
to southern two thirds of the lake. hail and gusty winds will be
possible and waterspouts may occur with any tornadic storms from
land that move over the waters. this will be most likely near
the shoreline of wisconsin and illinois. 

the front will clear the lake as a cold front friday, before 
low pressure of 29.6 inches approaches from the west.


lmz261-362-364-366-563-565-868-150315-
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 pentwater to manistee mi 5 nm offshore to mid
lake-
314 pm cdt tue apr 14 2026

two rivers wi to manistee mi north...

...dense fog advisory in effect until 7 am cdt wednesday...

.tonight...east winds 10 to 20 kt becoming northeast late this
evening, then becoming east after midnight backing to north 10 to
15 kt late. areas of dense fog. chance of rain showers and
thunderstorms this evening, then slight chance of rain showers
overnight. waves 1 to 3 ft. 
.wednesday...north winds 10 to 15 kt diminishing to 5 to 10 kt.
areas of dense fog in the morning, then patchy fog in the
afternoon. slight chance of rain showers in the morning, then
chance of rain showers and slight chance of thunderstorms in the
afternoon. waves 1 to 3 ft. 
.wednesday night...northeast winds 5 to 10 kt increasing to 10 to
15 kt. patchy fog in the evening. rain showers likely with a
chance of thunderstorms in the evening, then chance of rain
showers overnight. waves 1 to 2 ft. 
.thursday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
chance of rain showers. waves 1 to 2 ft. 
.thursday night...north winds 5 to 10 kt becoming northeast.
waves 1 to 2 ft. 
.friday...southeast winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft building to 2 to 4 ft. 
.friday night...southeast winds 15 to 25 kt becoming south to
30 kt. chance of rain showers. waves 4 to 7 ft occasionally to
9 ft building to 6 to 9 ft occasionally to 12 ft. 
.saturday...south winds to 30 kt becoming southwest. chance of
rain showers. waves 6 to 9 ft occasionally to 12 ft. 
.sunday...northwest gales to 35 kt. waves 8 to 12 ft occasionally
to 16 ft subsiding to 8 to 11 ft occasionally to 14 ft.  

$$

fzus63 kmkx 142014
glflm 
expires:202604150315;;368902

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
314 pm cdt tue apr 14 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...

a stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by thursday morning. winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. today, severe storms are expected over the southern half
to southern two thirds of the lake. hail and gusty winds will be
possible and waterspouts may occur with any tornadic storms from
land that move over the waters. this will be most likely near
the shoreline of wisconsin and illinois. 

the front will clear the lake as a cold front friday, before 
low pressure of 29.6 inches approaches from the west.


lmz669-671-150315-
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-
314 pm cdt tue apr 14 2026

sheboygan wi to pentwater mi south to north point light wi to
grand haven mi...

...tornado watch 109 in effect until 10 pm cdt this evening...
...dense fog advisory in effect until 7 am cdt wednesday...

.tonight...south winds 10 to 20 kt becoming southwest. areas of
dense fog. rain showers likely with a chance of thunderstorms
this evening, then chance of rain showers and slight chance of
thunderstorms overnight. waves 1 to 3 ft. 
.wednesday...west winds 5 to 10 kt veering to northeast. areas of
dense fog in the morning, then patchy fog in the afternoon.
chance of rain showers and slight chance of thunderstorms in the
morning, then rain showers likely with a chance of thunderstorms
in the afternoon. waves 1 to 3 ft. 
.wednesday night...northeast winds 5 to 10 kt becoming east.
patchy fog in the evening. rain showers with a chance of
thunderstorms in the evening, then rain showers likely with a
chance of thunderstorms overnight. waves 1 to 2 ft. 
.thursday...north winds 10 to 20 kt diminishing to 5 to 10 kt in
the afternoon. chance of rain showers. waves 1 to 3 ft. 
.thursday night...north winds 5 to 10 kt. waves 1 to 2 ft. 
.friday...southeast winds 5 to 10 kt increasing to 10 to 20 kt in
the afternoon. waves 1 to 2 ft building to 2 to 4 ft. 
.friday night...southeast winds 15 to 25 kt becoming south. rain
showers with a chance of thunderstorms. waves 4 to 7 ft
occasionally to 9 ft building to 5 to 8 ft occasionally to 10 ft.
.saturday...south winds 15 to 25 kt becoming west. rain showers
likely. waves 6 to 9 ft occasionally to 12 ft. 
.sunday...northwest winds to 30 kt. waves 7 to 10 ft occasionally
to 13 ft subsiding to 6 to 9 ft occasionally to 12 ft.  

$$

fzus63 kmkx 142014
glflm 
expires:202604150315;;368901

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
314 pm cdt tue apr 14 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...

a stationary front will remain parked over the middle third of
the lake into tomorrow, slowly sinking south to the southern end
of the lake by thursday morning. winds will remain southerly
south of the front and modestly breezy, while winds north of the
front will remain light and variable to northerly during this
time. today, severe storms are expected over the southern half
to southern two thirds of the lake. hail and gusty winds will be
possible and waterspouts may occur with any tornadic storms from
land that move over the waters. this will be most likely near
the shoreline of wisconsin and illinois. 

the front will clear the lake as a cold front friday, before 
low pressure of 29.6 inches approaches from the west.


lmz567-150315-
lake michigan from two rivers to sheboygan wi 5 nm offshore to
mid lake-
314 pm cdt tue apr 14 2026

two rivers wi to manistee mi south to sheboygan wi to pentwater
mi...

...tornado watch 109 in effect until 10 pm cdt this evening...
...dense fog advisory in effect until 7 am cdt wednesday...

.tonight...east winds 10 to 20 kt backing to northwest 10 to
15 kt. areas of dense fog. rain showers with a chance of
thunderstorms this evening, then slight chance of rain showers
and thunderstorms overnight. waves 1 to 3 ft. 
.wednesday...north winds 5 to 10 kt becoming northeast. areas of
dense fog in the morning, then patchy fog in the afternoon.
chance of rain showers in the morning, then rain showers likely
with a chance of thunderstorms in the afternoon. waves 1 to 3 ft.
.wednesday night...northeast winds 5 to 10 kt. patchy fog in the
evening. rain showers likely with a chance of thunderstorms.
waves 1 to 2 ft. 
.thursday...north winds 10 to 20 kt diminishing to 5 to 10 kt in
the afternoon. chance of rain showers. waves 1 to 2 ft. 
.thursday night...north winds 5 to 10 kt becoming northeast.
waves 1 to 2 ft. 
.friday...southeast winds 5 to 10 kt becoming south 10 to 20 kt
in the afternoon. waves 1 to 2 ft building to 2 to 4 ft. 
.friday night...south winds 15 to 25 kt. rain showers with a
chance of thunderstorms. waves 4 to 7 ft occasionally to 9 ft
building to 6 to 9 ft occasionally to 12 ft. 
.saturday...south winds 15 to 25 kt becoming west. rain showers
likely. waves 6 to 9 ft occasionally to 12 ft. 
.sunday...northwest winds to 30 kt. waves 7 to 10 ft occasionally
to 13 ft.  

$$

fzus63 kmkx 141446
glflm 
expires:202604142145;;354972

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
946 am cdt tue apr 14 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...

areas of marine dense fog will continue into wednesday morning as
a warm front/stationary front wavers over the middle third of lake
michigan. marine dense fog advisory is now in effect until 7 am 
cdt wednesday given this potential.

otherwise, severe storms are expected this afternoon into the
evening, mainly over the southern two thirds of the lake as a low
pressure of 29.6 inches shifts east into the area. hail and gusty
will be the main threat, but a tornadic storm from land that moves
over the lake and briefly produces a waterspout can't be ruled out 
along the wisconsin and illinois shoreline. winds will remain
southerly south of the stationary boundary with modest breezes to
15 knots, while winds north of the boundary will light and
variable. this configuration of winds will persist into wednesday,
with more thunderstorms expected over the southern half of the
lake wednesday afternoon.


lmz261-362-364-366-563-565-567-868-142145-
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-
946 am cdt tue apr 14 2026

sheboygan wi to pentwater mi north...

...dense fog advisory in effect until 7 am cdt wednesday...

.rest of today...north winds 10 to 15 kt becoming east. areas of
dense fog. waves 2 to 4 ft. 
.tonight...northeast winds 10 to 15 kt diminishing to 5 to 10 kt.
widespread dense fog. chance of rain showers and thunderstorms in
the evening, then slight chance of rain showers and thunderstorms
overnight. waves 1 to 3 ft. 
.wednesday...northeast winds 5 to 10 kt. widespread dense fog in
the morning, then patchy fog in the afternoon. chance of rain
showers. waves 1 to 3 ft. 
.wednesday night...northeast winds 5 to 10 kt becoming east 10 to
15 kt. rain showers likely with a chance of thunderstorms in the
evening, then rain showers likely overnight. waves 1 to 3 ft. 
.thursday...east winds 10 to 15 kt backing to northwest. chance
of rain showers. waves 1 to 3 ft. 
.thursday night...north winds 10 to 15 kt becoming northeast.
waves 1 to 3 ft. 
.friday...east winds 10 to 15 kt becoming southeast 10 to 20 kt.
waves 1 to 2 ft building to 1 to 3 ft. 
.saturday...south winds to 30 kt becoming southwest. chance of
rain showers. waves 8 to 11 ft occasionally to 14 ft.  

$$

fzus63 kmkx 141446
glflm 
expires:202604142145;;354973

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
946 am cdt tue apr 14 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...

areas of marine dense fog will continue into wednesday morning as
a warm front/stationary front wavers over the middle third of lake
michigan. marine dense fog advisory is now in effect until 7 am 
cdt wednesday given this potential.

otherwise, severe storms are expected this afternoon into the
evening, mainly over the southern two thirds of the lake as a low
pressure of 29.6 inches shifts east into the area. hail and gusty
will be the main threat, but a tornadic storm from land that moves
over the lake and briefly produces a waterspout can't be ruled out 
along the wisconsin and illinois shoreline. winds will remain
southerly south of the stationary boundary with modest breezes to
15 knots, while winds north of the boundary will light and
variable. this configuration of winds will persist into wednesday,
with more thunderstorms expected over the southern half of the
lake wednesday afternoon.


lmz669-671-673-675-870-872-874-876-142145-
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 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-
946 am cdt tue apr 14 2026

sheboygan wi to pentwater mi south to winthrop harbor il to south
haven mi...

...dense fog advisory in effect until 7 am cdt wednesday...

.rest of today...southwest winds 10 to 20 kt becoming south.
areas of dense fog. chance of rain showers and thunderstorms this
afternoon. waves 3 to 5 ft. 
.tonight...southeast winds 10 to 20 kt veering to west.
widespread dense fog. rain showers with thunderstorms likely in
the evening, then rain showers likely with a chance of
thunderstorms overnight. waves 2 to 4 ft. 
.wednesday...southwest winds 10 to 15 kt becoming southeast.
widespread dense fog in the morning, then patchy fog in the
afternoon. rain showers likely in the morning, then rain showers
with a chance of thunderstorms in the afternoon. waves 2 to 4 ft.
.wednesday night...southeast winds 10 to 15 kt becoming south
10 to 20 kt. rain showers with a chance of thunderstorms in the
evening, then rain showers likely overnight. waves 2 to 4 ft. 
.thursday...southwest winds 10 to 20 kt. chance of rain showers.
waves 2 to 4 ft. 
.thursday night...northwest winds 10 to 15 kt becoming north.
waves 1 to 3 ft. 
.friday...east winds 10 to 15 kt becoming southeast 10 to 20 kt.
waves 1 to 3 ft. 
.saturday...south winds to 30 kt becoming southwest. chance of
rain showers. waves 7 to 10 ft occasionally to 13 ft.  

$$

fzus63 kmqt 142001
glfls 
expires:202604150800;;367587

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue apr 14 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 ridging of around 29.8 to 29.9 inches moves back over lake 
superior from northern ontario tonight through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.0 inches over far 
northern quebec by sunday morning. 30.2 inch ridging builds in over 
lake superior for sunday night.



lsz267-150800-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 pm edt tue apr 14 2026

...dense fog advisory in effect until 11 am edt wednesday...

.late this afternoon...east winds 5 to 15 knots. areas of dense
fog. a slight chance of drizzle. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering southeast after
midnight, then backing north late. areas of dense fog. a slight
chance of drizzle. waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots. a slight chance of
drizzle through early afternoon. widespread dense fog through
early afternoon, then patchy fog by mid afternoon. waves calm to
2 feet. 
.wednesday night...north winds 5 to 15 knots. patchy fog through
midnight. a chance of rain showers. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots. a slight chance of rain
showers. waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots veering east after
midnight. waves calm to 2 feet. 
.friday...southeast winds 10 to 20 knots increasing to 15 to
25 knots by mid afternoon. waves building to 2 to 4 feet. 
.friday night...southeast winds 20 to 30 knots increasing to
gales to 35 knots after midnight. a chance of rain showers
through midnight, then rain showers likely after midnight. waves
building to 6 to 9 feet occasionally to 11 feet. 
.saturday...west gales to 40 knots. rain showers, possibly mixed
with snow, then a chance of snow showers, possibly mixed with
rain. waves building to 15 to 20 feet occasionally to 25 feet. 
.sunday...northwest gales to 40 knots diminishing to 20 to
30 knots. a chance of snow showers. waves subsiding to 9 to
12 feet occasionally to 15 feet. 

$$

fzus63 kmqt 142001
glfls 
expires:202604150800;;367586

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue apr 14 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 ridging of around 29.8 to 29.9 inches moves back over lake 
superior from northern ontario tonight through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.0 inches over far 
northern quebec by sunday morning. 30.2 inch ridging builds in over 
lake superior for sunday night.



lsz266-150800-
lake superior east of a line from manitou island to marquette mi
and west of a line from grand marais mi to the us/canadian border
beyond 5nm from shore-
400 pm edt tue apr 14 2026

...dense fog advisory in effect until 11 am edt wednesday...

.late this afternoon...east winds 5 to 15 knots. patchy dense
fog. a slight chance of rain showers and drizzle. waves calm to
2 feet. 
.tonight...east winds 5 to 15 knots backing north after midnight.
areas of dense fog. a slight chance of drizzle. waves calm to
2 feet. 
.wednesday...north winds 5 to 15 knots. a slight chance of
drizzle through early afternoon. areas of dense fog through early
afternoon, then patchy fog by mid afternoon. waves calm to
2 feet. 
.wednesday night...northeast winds 5 to 15 knots backing north
after midnight. patchy fog through midnight. a chance of rain
showers. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. a slight chance of rain showers. waves
calm to 2 feet. 
.thursday night...northeast winds 10 to 20 knots veering east
after midnight. waves building to 1 to 3 feet. 
.friday...southeast winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday night...southeast gales to 35 knots becoming south gales
to 40 knots after midnight. a chance of rain showers through
midnight. rain showers after midnight. waves building to 9 to
12 feet occasionally to 15 feet. 
.saturday...west gales to 45 knots. rain showers likely. a chance
of snow showers. a chance of rain showers. waves building to
10 to 14 feet occasionally to 18 feet, then subsiding to 9 to
12 feet occasionally to 15 feet. 
.sunday...northwest gales to 45 knots. waves subsiding to 8 to
11 feet occasionally to 14 feet. 

$$

fzus63 kmqt 142001
glfls 
expires:202604150800;;367585

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue apr 14 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 ridging of around 29.8 to 29.9 inches moves back over lake 
superior from northern ontario tonight through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.0 inches over far 
northern quebec by sunday morning. 30.2 inch ridging builds in over 
lake superior for sunday night.



lsz265-150800-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 pm edt tue apr 14 2026

...dense fog advisory in effect until 11 am edt wednesday...

.late this afternoon...east winds 10 to 20 knots. patchy dense
fog. a slight chance of rain showers and drizzle. waves calm to
2 feet. 
.tonight...east winds 5 to 15 knots backing northwest after
midnight. areas of dense fog. a slight chance of drizzle. waves
calm to 2 feet. 
.wednesday...north winds 5 to 15 knots veering northeast late. a
slight chance of drizzle through early afternoon. areas of dense
fog through early afternoon, then patchy fog by mid afternoon.
waves calm to 2 feet. 
.wednesday night...east winds 5 to 15 knots veering southeast
after midnight, then backing east late. patchy fog through
midnight. a slight chance of rain showers. waves calm to 2 feet. 
.thursday...east winds 10 to 20 knots. waves calm to 2 feet. 
.thursday night...east winds 10 to 20 knots veering southeast
after midnight. waves building to 1 to 3 feet. 
.friday...southeast winds 15 to 25 knots increasing to 20 to
30 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday night...south gales to 35 knots. rain showers. waves
building to 6 to 10 feet occasionally to 13 feet. 
.saturday...west gales to 40 knots. rain showers likely. a chance
of snow showers. waves building to 10 to 14 feet occasionally to
18 feet. 
.sunday...northwest gales to 40 knots diminishing to 20 to
30 knots. waves subsiding to 4 to 7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 142001
glfls 
expires:202604150800;;367584

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue apr 14 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 ridging of around 29.8 to 29.9 inches moves back over lake 
superior from northern ontario tonight through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.0 inches over far 
northern quebec by sunday morning. 30.2 inch ridging builds in over 
lake superior for sunday night.



lsz264-150800-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 pm edt tue apr 14 2026

...dense fog advisory in effect from 11 pm this evening to 11 am
edt wednesday...

.late this afternoon...northeast winds 5 to 15 knots. patchy fog.
a chance of rain showers and a slight chance of drizzle. waves
calm to 2 feet. 
.tonight...northeast winds less than 10 knots backing north after
midnight. areas of dense fog. a slight chance of drizzle. waves
calm to 2 feet. 
.wednesday...north winds less than 10 knots veering northeast in
the afternoon. a slight chance of drizzle through early
afternoon. areas of dense fog through early afternoon, then
patchy fog by mid afternoon. waves calm to 2 feet. 
.wednesday night...northeast winds less than 10 knots veering
southeast after midnight, then backing east late. patchy fog
through midnight. waves calm to 2 feet. 
.thursday...east winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. waves building to
2 to 4 feet. 
.friday...east winds 10 to 20 knots becoming southeast 15 to
25 knots by mid afternoon. waves building to 3 to 6 feet
occasionally to 8 feet. 
.friday night...southeast winds 20 to 30 knots becoming south
gales to 35 knots after midnight. rain showers. snow showers
likely after midnight. waves building to 8 to 11 feet
occasionally to 14 feet. 
.saturday...northwest gales to 45 knots. a chance of rain
showers. a chance of snow showers. waves subsiding to 7 to
10 feet occasionally to 13 feet, then building to 11 to 15 feet
occasionally to 19 feet. 
.sunday...northwest gales to 40 knots diminishing to 15 to
25 knots. waves subsiding to 5 to 8 feet occasionally to 10 feet,
then building to 6 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 142001
glfls 
expires:202604150800;;367583

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue apr 14 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 ridging of around 29.8 to 29.9 inches moves back over lake 
superior from northern ontario tonight through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.0 inches over far 
northern quebec by sunday morning. 30.2 inch ridging builds in over 
lake superior for sunday night.



lsz263-150800-
lake superior from saxon harbor wi to upper entrance to portage
canal mi 5nm off shore to the us/canadian border including isle
royale national park-
400 pm edt tue apr 14 2026

...dense fog advisory in effect from 11 pm this evening to 11 am
edt wednesday...

.late this afternoon...northeast winds 5 to 15 knots. patchy fog.
a slight chance of rain showers and drizzle. waves calm to
2 feet. 
.tonight...northeast winds 5 to 15 knots becoming north less than
10 knots after midnight. areas of dense fog. a slight chance of
drizzle. waves calm to 2 feet. 
.wednesday...northeast winds less than 10 knots. a slight chance
of drizzle through early afternoon. areas of dense fog through
early afternoon, then patchy fog by mid afternoon. waves calm to
2 feet. 
.wednesday night...east winds less than 10 knots backing
northeast late. patchy fog through midnight. a slight chance of
rain showers through midnight. waves calm to 2 feet. 
.thursday...northeast winds less than 10 knots increasing to 5 to
15 knots by mid afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. waves building to
2 to 4 feet. 
.friday...east winds 10 to 20 knots increasing to 15 to 25 knots
by mid afternoon. a chance of rain showers by mid afternoon.
waves building to 3 to 6 feet occasionally to 8 feet. 
.friday night...south winds 20 to 30 knots veering west after
midnight. a chance of thunderstorms through midnight. rain
showers. waves building to 6 to 9 feet occasionally to 11 feet. 
.saturday...west gales to 35 knots veering northwest. a chance of
rain showers. a chance of snow showers. waves building to 10 to
14 feet occasionally to 18 feet. 
.sunday...northwest gales to 35 knots diminishing to 10 to
20 knots. waves subsiding to 4 to 7 feet occasionally to 9 feet. 

$$

fzus63 kmqt 142001
glfls 
expires:202604150800;;367582

open lake forecast for lake superior
national weather service marquette mi
400 pm edt tue apr 14 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 ridging of around 29.8 to 29.9 inches moves back over lake 
superior from northern ontario tonight through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.0 inches over far 
northern quebec by sunday morning. 30.2 inch ridging builds in over 
lake superior for sunday night.



lsz162-150800-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 pm edt tue apr 14 2026 /300 pm cdt tue apr 14 2026/

...dense fog advisory in effect from 11 pm edt /10 pm cdt/ this
evening to 11 am edt /10 am cdt/ wednesday...

.late this afternoon...northeast winds 5 to 15 knots. patchy fog.
waves 1 to 3 feet subsiding to calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots backing north after
midnight. patchy fog through midnight, then areas of dense fog
after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing northeast in the
afternoon. areas of fog. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots. patchy fog
through midnight. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...northeast winds 10 to 20 knots. waves building
to 1 to 3 feet. 
.friday...northeast winds 10 to 20 knots. a chance of rain
showers by mid afternoon. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday night...north winds 15 to 25 knots becoming northwest
20 to 30 knots after midnight. rain showers and a chance of
thunderstorms through midnight, then a chance of rain showers
after midnight. waves building to 4 to 8 feet occasionally to
10 feet. 
.saturday...west winds 20 to 30 knots becoming northwest gales to
35 knots. a chance of rain showers. a chance of snow showers.
waves building to 6 to 9 feet occasionally to 11 feet. 
.sunday...northwest gales to 35 knots diminishing to 5 to
15 knots. waves subsiding to 1 to 3 feet. 

$$