fzus63 kdtx 210748
glflh 
expires:202606211600;;115128

open lake forecast for lake huron
national weather service detroit/pontiac mi
348 am edt sun jun 21 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...diffuse high pressure, 29.90 inches, holds over the
central great lakes today. a compact low pressure system, 29.60
inches, will arrive in the ohio valley tonight through monday
morning, bringing renewed rain and thunderstorm chances along
with elevated winds across the southern great lakes.


lhz361-211600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
348 am edt sun jun 21 2026

.today...northwest winds 5 to 15 knots backing to the west early 
in the afternoon...then becoming light and variable late in the 
afternoon. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.monday...north winds 5 to 10 knots backing to the west early in
the afternoon. waves 2 feet or less. 
.monday night...northwest winds 10 to 15 knots. waves 2 to
4 feet. 
.tuesday...northwest winds 5 to 10 knots backing to the west late
in the afternoon...then veering to the northwest late in the
evening. waves 2 feet or less. 
.wednesday...light and variable winds becoming east 5 to 10 knots
. a chance of showers. waves 2 feet or less. 
.thursday...east winds 5 to 10 knots. a chance of showers. waves
2 feet or less. 


$$

fzus63 kdtx 210748
glflh 
expires:202606211600;;115129

open lake forecast for lake huron
national weather service detroit/pontiac mi
348 am edt sun jun 21 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...diffuse high pressure, 29.90 inches, holds over the
central great lakes today. a compact low pressure system, 29.60
inches, will arrive in the ohio valley tonight through monday
morning, bringing renewed rain and thunderstorm chances along
with elevated winds across the southern great lakes.


lhz362-363-211600-
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-
348 am edt sun jun 21 2026

.today...northwest winds 5 to 10 knots in the morning becoming
light and variable. waves 2 feet or less. 
.tonight...light and variable winds. waves 2 feet or less. 
.monday...light and variable winds becoming north 5 to 10 knots
in the late morning and afternoon. waves 2 feet or less. 
.monday night...northeast winds 10 to 15 knots backing to the
northwest in the late evening and overnight. waves 1 to 3 feet
building to 2 to 4 feet in the late evening and overnight. 
.tuesday...north winds 5 to 10 knots becoming light and variable.
waves 1 to 3 feet. 
.wednesday...light and variable winds becoming southeast 5 to
10 knots . a chance of showers by midnight. waves 2 feet or less.
.thursday...southeast winds 5 to 10 knots. a chance of showers
early in the morning. a chance of showers early in the evening.
waves 2 feet or less. 


$$

fzus63 kdtx 210748
glflh 
expires:202606211600;;115130

open lake forecast for lake huron
national weather service detroit/pontiac mi
348 am edt sun jun 21 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...diffuse high pressure, 29.90 inches, holds over the
central great lakes today. a compact low pressure system, 29.60
inches, will arrive in the ohio valley tonight through monday
morning, bringing renewed rain and thunderstorm chances along
with elevated winds across the southern great lakes.


lhz462>464-211600-
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-
348 am edt sun jun 21 2026

.today...light and variable winds. waves 2 feet or less. 
.tonight...east winds 5 to 10 knots. a chance of showers after
midnight. waves 2 feet or less. 
.monday...east winds 5 to 10 knots backing to the northeast in
the late morning and early afternoon...then becoming northeast
5 to 10 knots early in the afternoon. waves 1 to 3 feet. 
.monday night...north winds 10 to 15 knots decreasing to 5 to
10 knots in the late evening and overnight. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.tuesday...north winds 5 to 10 knots becoming light and variable.
waves 2 feet or less. 
.wednesday...light and variable winds becoming east 5 to 10 knots
. a chance of showers . waves 2 feet or less. 
.thursday...southeast winds 5 to 10 knots backing to the east by
midnight. a chance of showers. a chance of thunderstorms early in
the evening. waves 2 feet or less. 


$$

fzus63 kmkx 210157
glflm 
expires:202606210915;;100796

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
857 pm cdt sat jun 20 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 and variable winds expected as a ridge of high pressure
around 29.9 inches moves across lake michigan. low pressure 
around 29.5 inches will track eastward from the central plains
into central illinois early sunday evening, then into ohio by 
monday. this will bring light easterly winds during the day
sunday, becoming breezy northeast winds over the southern 
portions of the lake later sunday into sunday night. lighter winds
return late monday evening into tuesday as high pressure around 
30.1 inches builds into the region.


lmz080-669-671-673-675-777-779-870-872-874-876-878-210915-
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-
857 pm cdt sat jun 20 2026

sheboygan wi to pentwater mi south...

.rest of tonight...south winds 5 to 10 kt becoming southwest.
waves 1 to 2 ft. 
.sunday...east winds less than 10 kt becoming southeast 15 to
25 kt. chance of showers in the afternoon. waves 1 ft or less
building to 1 to 2 ft. 
.sunday night...east winds to 30 kt becoming northeast 15 to
25 kt. showers in the evening, then chance of showers overnight.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. 
.monday...north winds 15 to 25 kt increasing to 30 kt. waves 4 to
7 ft occasionally to 9 ft. 
.monday night...north winds to 30 kt diminishing to 10 to 20 kt
overnight. waves 4 to 7 ft occasionally to 9 ft subsiding to 3 to
5 ft. 
.tuesday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 2 to 4 ft subsiding to 1 to 2 ft. 
.tuesday night...north winds 10 to 15 kt backing to southwest.
waves 1 to 2 ft. 
.wednesday...south winds 10 to 15 kt. showers likely with a
chance of thunderstorms. waves 1 to 2 ft. 
.thursday...northwest winds 10 to 15 kt becoming north 10 to
20 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 210157
glflm 
expires:202606210915;;100795

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
857 pm cdt sat jun 20 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 and variable winds expected as a ridge of high pressure
around 29.9 inches moves across lake michigan. low pressure 
around 29.5 inches will track eastward from the central plains
into central illinois early sunday evening, then into ohio by 
monday. this will bring light easterly winds during the day
sunday, becoming breezy northeast winds over the southern 
portions of the lake later sunday into sunday night. lighter winds
return late monday evening into tuesday as high pressure around 
30.1 inches builds into the region.


lmz261-362-364-366-563-565-567-868-210915-
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-
857 pm cdt sat jun 20 2026

sheboygan wi to pentwater mi north...

.rest of tonight...southwest winds 10 to 15 kt veering to
northeast. patchy fog overnight. waves 1 ft or less. 
.sunday...east winds less than 10 kt becoming southeast late in
the morning, then becoming south early in the afternoon backing
to east late. patchy fog in the morning. waves 1 ft or less. 
.sunday night...northeast winds 5 to 10 kt increasing to 10 to
20 kt. waves 1 to 2 ft building to 1 to 3 ft. 
.monday...north winds 15 to 25 kt increasing to 30 kt. waves 3 to
5 ft. 
.monday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.tuesday...north winds 10 to 15 kt becoming northwest 10 to
20 kt. waves 1 to 2 ft. 
.tuesday night...north winds 5 to 10 kt veering to east. waves
1 ft or less. 
.wednesday...southeast winds 10 to 15 kt. chance of showers.
waves 1 to 2 ft. 
.thursday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmqt 210801
glfls 
expires:202606212000;;115543

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jun 21 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging associated with 30.1 inch high pressure over northwest 
canada. as a 29.8 inch low passes south of the great lakes through 
monday morning, high pressure builds to 30.2 inches over northern 
manitoba. the high then moves over hudson bay, northern ontario, and 
lake superior for tuesday, maintaining 30.2 inches. tuesday 
afternoon, a weak 30.0 inch low forms over the dakotas, deepening 
toi 29.9 inches over wisconsin wednesday as the high retreats to 
hudson bay. the low continues slowly pushing east through the great 
lakes thursday before broad 30.0 inch high pressure fills in over 
the upper great lakes for friday.




lsz266-212000-
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 am edt sun jun 21 2026

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...northwest winds 5 to 15 knots veering northeast late.
waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots backing northwest after
midnight. waves calm to 2 feet. 
.monday...northwest winds 10 to 20 knots. waves calm to 2 feet. 
.monday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.tuesday...northwest 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...east winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots backing northwest. waves
calm to 2 feet. 

$$

fzus63 kmqt 210801
glfls 
expires:202606212000;;115544

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jun 21 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging associated with 30.1 inch high pressure over northwest 
canada. as a 29.8 inch low passes south of the great lakes through 
monday morning, high pressure builds to 30.2 inches over northern 
manitoba. the high then moves over hudson bay, northern ontario, and 
lake superior for tuesday, maintaining 30.2 inches. tuesday 
afternoon, a weak 30.0 inch low forms over the dakotas, deepening 
toi 29.9 inches over wisconsin wednesday as the high retreats to 
hudson bay. the low continues slowly pushing east through the great 
lakes thursday before broad 30.0 inch high pressure fills in over 
the upper great lakes for friday.




lsz267-212000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt sun jun 21 2026

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...west winds 5 to 15 knots veering north in the afternoon.
waves calm to 2 feet. 
.tonight...north winds 5 to 15 knots backing northwest after
midnight. waves calm to 2 feet. 
.monday...northwest winds 10 to 20 knots backing west late. waves
calm to 2 feet. 
.monday night...northwest winds 10 to 20 knots diminishing to
5 to 15 knots after midnight. waves calm to 2 feet. 
.tuesday...northwest winds 5 to 15 knots backing west by mid
afternoon. waves calm to 2 feet. 
.tuesday night...north winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots. waves calm to 2 feet. 
.thursday...northwest winds 5 to 15 knots increasing to 10 to
20 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 210801
glfls 
expires:202606212000;;115539

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jun 21 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging associated with 30.1 inch high pressure over northwest 
canada. as a 29.8 inch low passes south of the great lakes through 
monday morning, high pressure builds to 30.2 inches over northern 
manitoba. the high then moves over hudson bay, northern ontario, and 
lake superior for tuesday, maintaining 30.2 inches. tuesday 
afternoon, a weak 30.0 inch low forms over the dakotas, deepening 
toi 29.9 inches over wisconsin wednesday as the high retreats to 
hudson bay. the low continues slowly pushing east through the great 
lakes thursday before broad 30.0 inch high pressure fills in over 
the upper great lakes for friday.




lsz162-212000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt sun jun 21 2026 /300 am cdt sun jun 21 2026/

.early this morning...north winds 5 to 15 knots. waves calm to
2 feet. 
.today...northeast winds 5 to 15 knots veering southeast in the
afternoon, then backing east late. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots backing northeast after
midnight. waves calm to 2 feet. 
.monday...north winds less than 10 knots becoming southwest 5 to
15 knots in the afternoon, then veering north late. waves calm to
2 feet. 
.monday night...north winds 5 to 15 knots diminishing to less
than 10 knots after midnight. waves calm to 2 feet. 
.tuesday...north winds 5 to 15 knots veering northeast by mid
afternoon. a chance of rain showers by mid afternoon. waves calm
to 2 feet. 
.tuesday night...northeast winds 5 to 15 knots. a chance of rain
showers through midnight. rain showers likely after midnight.
waves calm to 2 feet. 
.wednesday...northeast winds 10 to 20 knots diminishing to 5 to
15 knots. a chance of rain showers. waves building to 1 to
3 feet, then subsiding to calm to 2 feet. 
.thursday...north winds 5 to 15 knots diminishing to less than
10 knots. waves calm to 2 feet. 

$$

fzus63 kmqt 210801
glfls 
expires:202606212000;;115540

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jun 21 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging associated with 30.1 inch high pressure over northwest 
canada. as a 29.8 inch low passes south of the great lakes through 
monday morning, high pressure builds to 30.2 inches over northern 
manitoba. the high then moves over hudson bay, northern ontario, and 
lake superior for tuesday, maintaining 30.2 inches. tuesday 
afternoon, a weak 30.0 inch low forms over the dakotas, deepening 
toi 29.9 inches over wisconsin wednesday as the high retreats to 
hudson bay. the low continues slowly pushing east through the great 
lakes thursday before broad 30.0 inch high pressure fills in over 
the upper great lakes for friday.




lsz263-212000-
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 am edt sun jun 21 2026

.early this morning...north winds less than 10 knots. waves calm
to 2 feet. 
.today...north winds less than 10 knots veering northeast in the
afternoon. waves calm to 2 feet. 
.tonight...northeast winds less than 10 knots becoming north 5 to
15 knots late. waves calm to 2 feet. 
.monday...north winds 5 to 15 knots backing west in the
afternoon. waves calm to 2 feet. 
.monday night...west winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet. 
.tuesday...southwest winds less than 10 knots becoming northeast
5 to 15 knots by mid afternoon. waves calm to 2 feet. 
.tuesday night...east winds 5 to 15 knots. a chance of rain
showers through midnight. rain showers likely after midnight.
waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. a chance of rain
showers. waves calm to 2 feet. 
.thursday...north winds less than 10 knots backing west. waves
calm to 2 feet. 

$$

fzus63 kmqt 210801
glfls 
expires:202606212000;;115541

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jun 21 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging associated with 30.1 inch high pressure over northwest 
canada. as a 29.8 inch low passes south of the great lakes through 
monday morning, high pressure builds to 30.2 inches over northern 
manitoba. the high then moves over hudson bay, northern ontario, and 
lake superior for tuesday, maintaining 30.2 inches. tuesday 
afternoon, a weak 30.0 inch low forms over the dakotas, deepening 
toi 29.9 inches over wisconsin wednesday as the high retreats to 
hudson bay. the low continues slowly pushing east through the great 
lakes thursday before broad 30.0 inch high pressure fills in over 
the upper great lakes for friday.




lsz264-212000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt sun jun 21 2026

.early this morning...northwest winds less than 10 knots. waves
calm to 2 feet. 
.today...north winds less than 10 knots veering northeast late.
waves calm to 2 feet. 
.tonight...west winds less than 10 knots becoming northwest 5 to
15 knots after midnight. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots backing west late. waves
calm to 2 feet. 
.monday night...west winds 5 to 15 knots. waves calm to 2 feet. 
.tuesday...west winds less than 10 knots backing southwest by mid
afternoon. waves calm to 2 feet. 
.tuesday night...southeast winds less than 10 knots becoming east
5 to 15 knots after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing northeast. a chance
of rain showers. waves calm to 2 feet. 
.thursday...north winds less than 10 knots backing west. waves
calm to 2 feet. 

$$

fzus63 kmqt 210801
glfls 
expires:202606212000;;115542

open lake forecast for lake superior
national weather service marquette mi
400 am edt sun jun 21 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... 

this morning, the upper great lakes are under broad weak 29.9 inch 
ridging associated with 30.1 inch high pressure over northwest 
canada. as a 29.8 inch low passes south of the great lakes through 
monday morning, high pressure builds to 30.2 inches over northern 
manitoba. the high then moves over hudson bay, northern ontario, and 
lake superior for tuesday, maintaining 30.2 inches. tuesday 
afternoon, a weak 30.0 inch low forms over the dakotas, deepening 
toi 29.9 inches over wisconsin wednesday as the high retreats to 
hudson bay. the low continues slowly pushing east through the great 
lakes thursday before broad 30.0 inch high pressure fills in over 
the upper great lakes for friday.




lsz265-212000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt sun jun 21 2026

.early this morning...west winds 5 to 15 knots. waves calm to
2 feet. 
.today...east winds 5 to 15 knots backing northeast in the
afternoon, then veering east late. waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots backing northwest after
midnight. waves calm to 2 feet. 
.monday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.monday night...northwest winds 5 to 15 knots. waves calm to
2 feet. 
.tuesday...northwest winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.tuesday night...southeast winds 5 to 15 knots. a chance of
showers after midnight. waves calm to 2 feet. 
.wednesday...east winds 5 to 15 knots backing north. a chance of
showers. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots backing west. waves calm to
2 feet. 

$$