fzus63 kdtx 192038
glflh 
expires:202605200445;;310149

open lake forecast for lake huron
national weather service detroit/pontiac mi
438 pm edt tue may 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 cold front sweeps across the region this evening,
veering winds from southwest to northwest. strong to severe
thunderstorms will be possible ahead of this cold front. high
pressure, 30.50 inches, then builds in mid-week.


lhz362-363-462-200445-
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-
lake huron from port austin to harbor beach beyond 5nm off shore-
438 pm edt tue may 19 2026

.today...south winds 10 to 15 knots increasing to 15 to 20 knots
in the late morning and afternoon. scattered showers in the
afternoon. waves 3 to 5 feet building to 5 to 7 feet in the
afternoon. waves occasionally around 10 feet. 
.tonight...southwest winds 15 to 20 knots veering to the
northwest in the late evening and overnight. waves 5 to 7 feet.
waves occasionally around 10 feet. 
.wednesday...northwest winds 15 to 20 knots. waves 6 to 9 feet.
waves occasionally around 12 feet. 
.wednesday night...north winds 15 to 20 knots decreasing to 10 to
15 knots in the late evening and overnight. waves 3 to 5 feet. 
.thursday...northeast winds 5 to 10 knots. waves 2 to 4 feet
subsiding to 1 to 3 feet. 
.friday...east winds 10 to 15 knots becoming northeast 15 to
20 knots . a chance of showers by midnight. waves 1 to 3 feet
building to 4 to 6 feet . waves occasionally around 8 feet. 
.saturday...east winds 20 to 25 knots with gusts to around
30 knots decreasing to 10 to 15 knots. showers likely until
afternoon...then a chance of showers . waves 4 to 6 feet. 


$$

fzus63 kdtx 192038
glflh 
expires:202605200445;;310148

open lake forecast for lake huron
national weather service detroit/pontiac mi
438 pm edt tue may 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 cold front sweeps across the region this evening,
veering winds from southwest to northwest. strong to severe
thunderstorms will be possible ahead of this cold front. high
pressure, 30.50 inches, then builds in mid-week.


lhz361-200445-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
438 pm edt tue may 19 2026

.today...east winds 5 to 10 knots increasing to 10 to 15 knots
late in the morning...then veering to the south early in the
afternoon becoming southwest 15 to 20 knots late in the
afternoon. scattered showers. waves 2 to 4 feet building to 3 to
5 feet in the late morning and afternoon. 
.tonight...northwest winds 15 to 20 knots increasing to 20 to
25 knots early in the morning. scattered showers in the evening.
waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday...northwest winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
afternoon. waves 5 to 7 feet. waves occasionally around 10 feet. 
.wednesday night...northwest winds 15 to 20 knots becoming north
5 to 10 knots. waves 3 to 5 feet subsiding to 1 to 3 feet after
midnight. 
.thursday...northeast winds 5 to 10 knots veering to the east.
waves 2 feet or less. 
.friday...east winds 5 to 10 knots increasing to 15 to 20 knots.
a chance of. waves 2 feet or less building to 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday...east winds 20 to 25 knots with gusts to around
30 knots increasing to 30 knots with gusts to 35 knot gales in
the late morning and early afternoon...then decreasing to 20 to
25 knots with gusts to around 30 knots early in the evening
decreasing to 15 to 20 knots by midnight. a chance of showers.
waves 6 to 9 feet subsiding to 3 to 5 feet by midnight. waves
occasionally around 12 feet. 


$$

fzus63 kmkx 192018
glflm 
expires:202605200330;;309459

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
318 pm cdt tue may 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...

gusty westerly winds are developing in the wake of a cold front
this afternoon. gusts up to 30 kt will be possible right behind
the front and then winds will gradually diminish overnight. high 
pressure around 30.4 inches will then move into the northern great
lakes on wednesday. modest northeast winds are expected wednesday
afternoon through thursday, especially over the south half. winds
will remain easterly through saturday as strong high pressure
around 30.5 tracks across ontario and quebec and a weak low 
pressure trough around 29.8 inches sets up in the plains. 


lmz261-362-364-366-563-565-567-868-200330-
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-
318 pm cdt tue may 19 2026

sheboygan wi to pentwater mi north...

.tonight...northwest winds 10 to 20 kt becoming north. waves 3 to
5 ft subsiding to 2 to 4 ft. 
.wednesday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft. 
.wednesday night...northeast winds 10 to 20 kt diminishing to
10 to 15 kt. waves 1 to 3 ft. 
.thursday...northeast winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.thursday night...northeast winds 10 to 20 kt becoming east 10 to
15 kt. waves 1 to 3 ft. 
.friday...east winds 10 to 20 kt becoming northeast 15 to 25 kt.
waves 1 to 3 ft building to 3 to 5 ft. 
.friday night...east winds 15 to 25 kt increasing to 30 kt.
chance of showers. waves 4 to 6 ft occasionally to 8 ft. 
.saturday...east winds to 30 kt becoming northeast. chance of
showers. waves 4 to 6 ft occasionally to 8 ft. 
.sunday...southwest winds 10 to 15 kt. waves 1 ft or less.  

$$

fzus63 kmkx 192018
glflm 
expires:202605200330;;309460

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
318 pm cdt tue may 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...

gusty westerly winds are developing in the wake of a cold front
this afternoon. gusts up to 30 kt will be possible right behind
the front and then winds will gradually diminish overnight. high 
pressure around 30.4 inches will then move into the northern great
lakes on wednesday. modest northeast winds are expected wednesday
afternoon through thursday, especially over the south half. winds
will remain easterly through saturday as strong high pressure
around 30.5 tracks across ontario and quebec and a weak low 
pressure trough around 29.8 inches sets up in the plains. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-200330-
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-
318 pm cdt tue may 19 2026

sheboygan wi to pentwater mi south...

.tonight...northwest winds 10 to 20 kt becoming north. waves 3 to
5 ft. 
.wednesday...north winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft. 
.wednesday night...north winds 15 to 25 kt becoming northeast
10 to 20 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to
3 to 5 ft. 
.thursday...east winds 10 to 15 kt becoming north 10 to 20 kt.
waves 2 to 4 ft. 
.thursday night...northeast winds 10 to 20 kt becoming east.
waves 3 to 5 ft. 
.friday...east winds 10 to 20 kt becoming northeast 15 to 25 kt.
chance of rain showers. waves 3 to 5 ft. 
.friday night...east winds 15 to 25 kt. showers likely. waves
4 to 6 ft occasionally to 8 ft. 
.saturday...east winds 10 to 20 kt becoming north 10 to 15 kt.
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.sunday...west winds 5 to 10 kt backing to southeast. waves 1 ft
or less.  

$$

fzus63 kmqt 192001
glfls 
expires:202605200800;;308168

open lake forecast for lake superior
national weather service marquette mi
401 pm edt tue may 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... 

a 29.7 inch low northeast of lake superior moves to quebec at 29.6 
inches this evening. afterwards, a 30.2 inch high over the northern 
plains builds to 30.4 inches tonight into wednesday as it tracks 
eastward into the upper great lakes. the high pressure shifts east 
on thursday while leaving lingering ridging of at least 30.2 inches 
over lake superior through friday. a 29.9 inch low lifts into the 
lower great lakes from the southern plains friday night and 
saturday, but 30.1 inch ridging likely persists over lake superior 
the remainder of the weekend.



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 tue may 19 2026

.late this afternoon...northwest winds 15 to 25 knots. waves 2 to
4 feet. 
.tonight...north winds 10 to 20 knots backing northwest after
midnight. waves subsiding to 1 to 3 feet. 
.wednesday...northwest winds 5 to 15 knots backing southwest
late. waves subsiding to calm to 2 feet. 
.wednesday night...southwest winds 5 to 15 knots backing south
after midnight. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots backing southeast by mid
afternoon. waves calm to 2 feet. 
.thursday night...southeast winds 5 to 15 knots veering south
after midnight. waves calm to 2 feet. 
.friday...southeast winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.friday night...east winds 5 to 15 knots. waves building to 1 to
3 feet. 
.saturday...east winds 10 to 20 knots becoming southeast 5 to
15 knots. a chance of rain showers. waves building to 2 to
4 feet, then subsiding to calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 192001
glfls 
expires:202605200800;;308169

open lake forecast for lake superior
national weather service marquette mi
401 pm edt tue may 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... 

a 29.7 inch low northeast of lake superior moves to quebec at 29.6 
inches this evening. afterwards, a 30.2 inch high over the northern 
plains builds to 30.4 inches tonight into wednesday as it tracks 
eastward into the upper great lakes. the high pressure shifts east 
on thursday while leaving lingering ridging of at least 30.2 inches 
over lake superior through friday. a 29.9 inch low lifts into the 
lower great lakes from the southern plains friday night and 
saturday, but 30.1 inch ridging likely persists over lake superior 
the remainder of the weekend.



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

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

$$

fzus63 kmqt 192001
glfls 
expires:202605200800;;308170

open lake forecast for lake superior
national weather service marquette mi
401 pm edt tue may 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... 

a 29.7 inch low northeast of lake superior moves to quebec at 29.6 
inches this evening. afterwards, a 30.2 inch high over the northern 
plains builds to 30.4 inches tonight into wednesday as it tracks 
eastward into the upper great lakes. the high pressure shifts east 
on thursday while leaving lingering ridging of at least 30.2 inches 
over lake superior through friday. a 29.9 inch low lifts into the 
lower great lakes from the southern plains friday night and 
saturday, but 30.1 inch ridging likely persists over lake superior 
the remainder of the weekend.



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 tue may 19 2026

.late this afternoon...northwest winds 20 to 30 knots. waves 3 to
6 feet occasionally to 8 feet. 
.tonight...northwest winds 20 to 30 knots diminishing to 15 to
25 knots late. waves 3 to 6 feet occasionally to 8 feet. 
.wednesday...northwest winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then backing west late. waves
subsiding to 1 to 3 feet. 
.wednesday night...west winds 5 to 15 knots backing south after
midnight. waves subsiding to calm to 2 feet. 
.thursday...south winds 5 to 15 knots becoming east 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.thursday night...southeast winds 10 to 20 knots veering south
after midnight. waves subsiding to calm to 2 feet. 
.friday...southeast winds 10 to 20 knots backing east by mid
afternoon. waves building to 1 to 3 feet. 
.friday night...east winds 10 to 20 knots. waves building to 2 to
4 feet. 
.saturday...east winds 15 to 25 knots becoming southeast 10 to
20 knots. a chance of rain showers. waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 1 to 3 feet. 
.sunday...west winds 5 to 15 knots backing southwest. waves
subsiding to calm to 2 feet. 

$$

fzus63 kmqt 192001
glfls 
expires:202605200800;;308171

open lake forecast for lake superior
national weather service marquette mi
401 pm edt tue may 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... 

a 29.7 inch low northeast of lake superior moves to quebec at 29.6 
inches this evening. afterwards, a 30.2 inch high over the northern 
plains builds to 30.4 inches tonight into wednesday as it tracks 
eastward into the upper great lakes. the high pressure shifts east 
on thursday while leaving lingering ridging of at least 30.2 inches 
over lake superior through friday. a 29.9 inch low lifts into the 
lower great lakes from the southern plains friday night and 
saturday, but 30.1 inch ridging likely persists over lake superior 
the remainder of the weekend.



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

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

$$

fzus63 kmqt 192001
glfls 
expires:202605200800;;308167

open lake forecast for lake superior
national weather service marquette mi
401 pm edt tue may 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... 

a 29.7 inch low northeast of lake superior moves to quebec at 29.6 
inches this evening. afterwards, a 30.2 inch high over the northern 
plains builds to 30.4 inches tonight into wednesday as it tracks 
eastward into the upper great lakes. the high pressure shifts east 
on thursday while leaving lingering ridging of at least 30.2 inches 
over lake superior through friday. a 29.9 inch low lifts into the 
lower great lakes from the southern plains friday night and 
saturday, but 30.1 inch ridging likely persists over lake superior 
the remainder of the weekend.



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 tue may 19 2026

.late this afternoon...west winds 10 to 20 knots. waves 2 to
4 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots backing southwest in
the afternoon. waves calm to 2 feet. 
.wednesday night...southeast winds 5 to 15 knots veering south
late. waves calm to 2 feet. 
.thursday...south winds 5 to 15 knots backing east by mid
afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.friday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves building to 2 to 4 feet. 
.friday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to 1 to 3 feet. 
.saturday...east winds 5 to 15 knots. a chance of rain showers.
waves building to 2 to 4 feet, then subsiding to calm to 2 feet. 
.sunday...southwest winds 5 to 15 knots backing south. waves calm
to 2 feet. 

$$

fzus63 kmqt 192001
glfls 
expires:202605200800;;308166

open lake forecast for lake superior
national weather service marquette mi
401 pm edt tue may 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... 

a 29.7 inch low northeast of lake superior moves to quebec at 29.6 
inches this evening. afterwards, a 30.2 inch high over the northern 
plains builds to 30.4 inches tonight into wednesday as it tracks 
eastward into the upper great lakes. the high pressure shifts east 
on thursday while leaving lingering ridging of at least 30.2 inches 
over lake superior through friday. a 29.9 inch low lifts into the 
lower great lakes from the southern plains friday night and 
saturday, but 30.1 inch ridging likely persists over lake superior 
the remainder of the weekend.



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

.late this afternoon...west winds 15 to 25 knots. waves 1 to
3 feet. 
.tonight...northwest winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.wednesday...west winds 5 to 15 knots backing south in the
afternoon. waves calm to 2 feet. 
.wednesday night...southeast winds 5 to 15 knots backing
northeast after midnight. waves calm to 2 feet. 
.thursday...east winds 5 to 15 knots. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots. waves calm to 2 feet.
.friday...east winds 10 to 20 knots becoming northeast 15 to
25 knots by mid afternoon. waves building to 1 to 3 feet. 
.friday night...northeast winds 10 to 20 knots. a chance of rain
showers. waves building to 2 to 4 feet, then subsiding to 1 to
3 feet. 
.saturday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of rain showers. waves subsiding to calm to
2 feet. 
.sunday...southwest winds 5 to 15 knots. waves calm to 2 feet. 

$$