fzus63 kdtx 251344
glflh 
expires:202606252145;;883114

open lake forecast for lake huron
national weather service detroit/pontiac mi
944 am edt thu jun 25 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...low pressure, 29.80 inches will through lower 
michigan today. a high pressure, 30.10 inches, will develop over 
the region throughout the weekend, bringing calm winds and fair 
weather.


lhz361-252145-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
944 am edt thu jun 25 2026

.rest of today...east winds 10 to 15 knots decreasing to 5 to
10 knots late in the afternoon. a chance of showers and
thunderstorms late in the morning...then a chance of showers in
the afternoon. waves 1 to 3 feet. 
.tonight...light and variable winds becoming north 5 to 10 knots
after midnight. waves 2 feet or less. 
.friday...northwest winds 5 to 10 knots until late afternoon
becoming light and variable. waves 2 feet or less. 
.friday night...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 
.sunday...light and variable winds becoming east 10 to 15 knots.
a chance of. waves 2 feet or less building to 3 to 5 feet . 
.monday...southeast winds 10 to 15 knots increasing to 15 to
20 knots early in the evening...then decreasing to 10 to 15 knots
by midnight. a chance of showers until afternoon. waves 2 to
4 feet. 


$$

fzus63 kdtx 251344
glflh 
expires:202606252145;;883115

open lake forecast for lake huron
national weather service detroit/pontiac mi
944 am edt thu jun 25 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...low pressure, 29.80 inches will through lower 
michigan today. a high pressure, 30.10 inches, will develop over 
the region throughout the weekend, bringing calm winds and fair 
weather.


lhz362-363-252145-
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-
944 am edt thu jun 25 2026

.rest of today...east winds 10 to 15 knots becoming southeast
5 to 10 knots early in the afternoon...then backing to the east
late in the afternoon. showers likely late in the morning...then
a chance of showers and thunderstorms in the afternoon. waves
1 to 3 feet. 
.tonight...north winds 5 to 10 knots backing to the northwest
early in the morning. waves 2 feet or less. 
.friday...north winds 5 to 10 knots until late afternoon becoming
light and variable. waves 2 feet or less. 
.friday night...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 
.sunday...light and variable winds becoming east 5 to 10 knots .
waves 2 feet or less. 
.monday...southeast winds 10 to 15 knots. a chance of showers
until afternoon. waves 1 to 3 feet building to 2 to 4 feet. 


$$

fzus63 kdtx 251344
glflh 
expires:202606252145;;883116

open lake forecast for lake huron
national weather service detroit/pontiac mi
944 am edt thu jun 25 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...low pressure, 29.80 inches will through lower 
michigan today. a high pressure, 30.10 inches, will develop over 
the region throughout the weekend, bringing calm winds and fair 
weather.


lhz462>464-252145-
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-
944 am edt thu jun 25 2026

.rest of today...southeast winds 10 to 15 knots decreasing to
5 to 10 knots in the afternoon. a chance of showers late in the
morning...then a chance of showers and thunderstorms in the
afternoon. waves 1 to 3 feet. 
.tonight...north winds 5 to 10 knots. a chance of showers and
thunderstorms in the evening. waves 2 feet or less. 
.friday...north winds 5 to 10 knots. waves 2 feet or less. 
.friday night...light and variable winds. waves 2 feet or less. 
.saturday...north winds 5 to 10 knots. waves 2 feet or less. 
.sunday...light and variable winds becoming north 5 to 10 knots
early in the evening...then veering to the east by midnight.
waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots increasing to 10 to
15 knots. waves 1 to 3 feet. 


$$

fzus63 kmkx 251358
glflm 
expires:202606252115;;883429

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
858 am cdt thu jun 25 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...

weak low pressure around 29.9 inches over northwest lower michigan
this morning will continue eastward today, with relatively light 
and variable winds underneath it. patchy fog will remain possible
through at least mid to late morning across the north half of the
lake.

high pressure around 30.1 inches over ontario and the western 
great lakes will dominate friday through saturday with light north
to northeast winds likely. sunday, low pressure deepens to 29.3 
inches over the central plains, bringing breezy southeasterly 
winds to the lake. winds turn southerly and strengthen into monday
as low pressure exits into the canadian prairies.


lmz261-362-252115-
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-
858 am cdt thu jun 25 2026

rock island passage to charlevoix mi north...

.rest of today...northeast winds 10 to 15 kt increasing to 10 to
20 kt. patchy fog through mid morning. chance of showers and
slight chance of thunderstorms through mid morning. waves 1 to
2 ft. 
.tonight...north winds 10 to 20 kt diminishing to 5 to 10 kt.
waves 1 to 2 ft subsiding to 1 ft or less. 
.friday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves nearly calm. 
.friday night...northeast winds 10 to 15 kt diminishing to 5 to
10 kt. waves nearly calm. 
.saturday...northeast winds 5 to 10 kt increasing to 10 to 20 kt
in the afternoon. waves 1 ft or less. 
.saturday night...east winds 10 to 20 kt becoming southeast 10 to
15 kt. waves 1 to 2 ft. 
.sunday...southeast winds 10 to 20 kt becoming east 15 to 25 kt.
waves 1 to 2 ft building to 1 to 3 ft. 
.monday...southeast winds 15 to 25 kt becoming south to 30 kt.
waves 3 to 5 ft building to 4 to 6 ft occasionally to 8 ft.  

$$

fzus63 kmkx 251358
glflm 
expires:202606252115;;883430

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
858 am cdt thu jun 25 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...

weak low pressure around 29.9 inches over northwest lower michigan
this morning will continue eastward today, with relatively light 
and variable winds underneath it. patchy fog will remain possible
through at least mid to late morning across the north half of the
lake.

high pressure around 30.1 inches over ontario and the western 
great lakes will dominate friday through saturday with light north
to northeast winds likely. sunday, low pressure deepens to 29.3 
inches over the central plains, bringing breezy southeasterly 
winds to the lake. winds turn southerly and strengthen into monday
as low pressure exits into the canadian prairies.


lmz364-366-563-565-567-868-252115-
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-
858 am cdt thu jun 25 2026

rock island passage to charlevoix mi south to sheboygan wi to
pentwater mi...

...dense fog advisory in effect until 11 am cdt this morning...

.rest of today...north winds 5 to 10 kt increasing to 10 to
20 kt. widespread dense fog through mid morning. slight chance of
showers through mid morning. waves 1 to 2 ft. 
.tonight...north winds 10 to 20 kt becoming northeast 5 to 10 kt.
waves 1 to 2 ft. 
.friday...northeast winds 5 to 10 kt becoming north 10 to 20 kt.
waves 1 to 2 ft. 
.friday night...northeast winds 10 to 20 kt becoming east 5 to
10 kt overnight. waves 1 to 2 ft. 
.saturday...northeast winds 5 to 10 kt increasing to 10 to 20 kt
in the afternoon. waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 20 kt becoming southeast.
waves 1 to 2 ft. 
.sunday...southeast winds 15 to 25 kt. waves 2 to 4 ft building
to 3 to 5 ft. 
.monday...south winds 15 to 25 kt increasing to 30 kt. waves 4 to
7 ft occasionally to 9 ft.  

$$

fzus63 kmkx 251358
glflm 
expires:202606252115;;883432

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
858 am cdt thu jun 25 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...

weak low pressure around 29.9 inches over northwest lower michigan
this morning will continue eastward today, with relatively light 
and variable winds underneath it. patchy fog will remain possible
through at least mid to late morning across the north half of the
lake.

high pressure around 30.1 inches over ontario and the western 
great lakes will dominate friday through saturday with light north
to northeast winds likely. sunday, low pressure deepens to 29.3 
inches over the central plains, bringing breezy southeasterly 
winds to the lake. winds turn southerly and strengthen into monday
as low pressure exits into the canadian prairies.


lmz669-870-252115-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
858 am cdt thu jun 25 2026

sheboygan wi to pentwater mi south to port washington wi to
whitehall mi...

...dense fog advisory in effect until 11 am cdt this morning...

.rest of today...northwest winds 5 to 10 kt becoming west 10 to
15 kt late this morning, then becoming northwest early this
afternoon becoming north 10 to 20 kt late. patchy dense fog
through mid morning. waves 1 to 2 ft. 
.tonight...north winds 10 to 15 kt diminishing to 5 to 10 kt.
waves 1 to 2 ft. 
.friday...northeast winds 5 to 10 kt becoming north 10 to 20 kt.
waves 1 to 2 ft. 
.friday night...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. waves 1 to 2 ft. 
.saturday...northeast winds 10 to 15 kt. waves 1 to 2 ft. 
.saturday night...northeast winds 10 to 15 kt becoming southeast
10 to 20 kt. waves 1 to 3 ft. 
.sunday...southeast winds 15 to 25 kt. waves 3 to 5 ft. 
.monday...south winds 15 to 25 kt increasing to 30 kt. waves 4 to
7 ft occasionally to 9 ft.  

$$

fzus63 kmkx 251358
glflm 
expires:202606252115;;883431

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
858 am cdt thu jun 25 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...

weak low pressure around 29.9 inches over northwest lower michigan
this morning will continue eastward today, with relatively light 
and variable winds underneath it. patchy fog will remain possible
through at least mid to late morning across the north half of the
lake.

high pressure around 30.1 inches over ontario and the western 
great lakes will dominate friday through saturday with light north
to northeast winds likely. sunday, low pressure deepens to 29.3 
inches over the central plains, bringing breezy southeasterly 
winds to the lake. winds turn southerly and strengthen into monday
as low pressure exits into the canadian prairies.


lmz080-671-673-675-777-779-872-874-876-878-252115-
lake michigan from michigan city in to st. joseph mi 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 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-
858 am cdt thu jun 25 2026

port washington wi to whitehall mi south...

.rest of today...west winds 5 to 10 kt veering to north 10 to
15 kt. waves 1 to 2 ft. 
.tonight...north winds 10 to 15 kt becoming northeast 5 to 10 kt.
waves 1 to 2 ft. 
.friday...northeast winds 5 to 10 kt becoming north 10 to 20 kt.
waves 1 to 2 ft. 
.friday night...northeast winds 10 to 20 kt diminishing to 10 to
15 kt. waves 1 to 2 ft. 
.saturday...east winds 10 to 15 kt becoming northeast. waves 1 to
2 ft. 
.saturday night...northeast winds 10 to 15 kt becoming southeast
10 to 20 kt. waves 1 to 3 ft. 
.sunday...southeast winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft. 
.monday...south winds 15 to 25 kt. waves 4 to 6 ft occasionally
to 8 ft.  

$$

fzus63 kmqt 251401
glfls 
expires:202606252000;;883627

open lake forecast for lake superior
national weather service marquette mi
1000 am edt thu jun 25 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 29.9 inch low currently tracking through lower michigan today 
continues towards the st. lawrence seaway tonight into friday. as it 
leaves the upper midwest, expect weak 30.0 inch ridging to return to 
lake superior today, building to 30.1 inches by friday morning and 
remaining that way into at least sunday morning. meanwhile late this 
weekend, a 29.2 inch low lifts from the rockies towards the northern 
plains and canadian prairies, eventually becoming a 29.0 inch low 
spinning over the canadian prairies by tuesday morning. expect this 
to cause progressively deepening troughing over lake superior early 
next week, with the troughing over the lake becoming 29.8 inches by 
tuesday morning. 




lsz162-252000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
1000 am edt thu jun 25 2026 /900 am cdt thu jun 25 2026/

.rest of today...northeast winds 5 to 15 knots backing north in
the afternoon, then diminishing to less than 10 knots late. waves
calm to 2 feet. 
.tonight...north winds less than 10 knots. waves calm to 2 feet. 
.friday...north winds less than 10 knots becoming northeast 5 to
15 knots in the afternoon. waves calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...northeast winds 5 to 15 knots increasing to 10 to
20 knots by mid afternoon. waves building to 1 to 3 feet. 
.saturday night...northeast winds 10 to 20 knots veering east
after midnight. waves 1 to 3 feet. 
.sunday...east winds 15 to 25 knots. a chance of showers, then
showers likely. waves building to 3 to 5 feet occasionally to
7 feet, then subsiding to 2 to 4 feet. 
.monday...northeast winds 10 to 20 knots. a chance of
thunderstorms. showers likely. waves subsiding to calm to 2 feet.

$$

fzus63 kmqt 251401
glfls 
expires:202606252000;;883628

open lake forecast for lake superior
national weather service marquette mi
1000 am edt thu jun 25 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 29.9 inch low currently tracking through lower michigan today 
continues towards the st. lawrence seaway tonight into friday. as it 
leaves the upper midwest, expect weak 30.0 inch ridging to return to 
lake superior today, building to 30.1 inches by friday morning and 
remaining that way into at least sunday morning. meanwhile late this 
weekend, a 29.2 inch low lifts from the rockies towards the northern 
plains and canadian prairies, eventually becoming a 29.0 inch low 
spinning over the canadian prairies by tuesday morning. expect this 
to cause progressively deepening troughing over lake superior early 
next week, with the troughing over the lake becoming 29.8 inches by 
tuesday morning. 




lsz263-252000-
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-
1000 am edt thu jun 25 2026

.rest of today...northeast winds less than 10 knots backing north
in the afternoon, then backing west late. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots becoming southwest less than
10 knots after midnight. waves calm to 2 feet. 
.friday...southwest winds less than 10 knots becoming northeast
5 to 15 knots in the afternoon. waves calm to 2 feet. 
.friday night...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...east winds 5 to 15 knots becoming northeast 10 to
20 knots by mid afternoon. waves calm to 2 feet. 
.saturday night...east winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.sunday...east winds 15 to 25 knots veering southeast. a chance
of showers. waves building to 3 to 6 feet occasionally to 8 feet.
.monday...southeast winds 10 to 20 knots veering south. a chance
of showers and thunderstorms. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202606252000;;883629

open lake forecast for lake superior
national weather service marquette mi
1000 am edt thu jun 25 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 29.9 inch low currently tracking through lower michigan today 
continues towards the st. lawrence seaway tonight into friday. as it 
leaves the upper midwest, expect weak 30.0 inch ridging to return to 
lake superior today, building to 30.1 inches by friday morning and 
remaining that way into at least sunday morning. meanwhile late this 
weekend, a 29.2 inch low lifts from the rockies towards the northern 
plains and canadian prairies, eventually becoming a 29.0 inch low 
spinning over the canadian prairies by tuesday morning. expect this 
to cause progressively deepening troughing over lake superior early 
next week, with the troughing over the lake becoming 29.8 inches by 
tuesday morning. 




lsz264-252000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
1000 am edt thu jun 25 2026

.rest of today...north winds less than 10 knots becoming west
5 to 15 knots late. patchy dense fog. waves calm to 2 feet. 
.tonight...west winds 5 to 15 knots diminishing to less than
10 knots after midnight. waves calm to 2 feet. 
.friday...west winds less than 10 knots backing south in the
afternoon, then backing southeast late. waves calm to 2 feet. 
.friday night...east winds less than 10 knots. waves calm to
2 feet. 
.saturday...east winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.sunday...east winds 15 to 25 knots veering southeast. a chance
of showers. waves building to 3 to 6 feet occasionally to 8 feet.
.monday...southeast winds 15 to 25 knots becoming south 10 to
20 knots. a chance of showers and thunderstorms. waves subsiding
to 2 to 4 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202606252000;;883630

open lake forecast for lake superior
national weather service marquette mi
1000 am edt thu jun 25 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 29.9 inch low currently tracking through lower michigan today 
continues towards the st. lawrence seaway tonight into friday. as it 
leaves the upper midwest, expect weak 30.0 inch ridging to return to 
lake superior today, building to 30.1 inches by friday morning and 
remaining that way into at least sunday morning. meanwhile late this 
weekend, a 29.2 inch low lifts from the rockies towards the northern 
plains and canadian prairies, eventually becoming a 29.0 inch low 
spinning over the canadian prairies by tuesday morning. expect this 
to cause progressively deepening troughing over lake superior early 
next week, with the troughing over the lake becoming 29.8 inches by 
tuesday morning. 




lsz265-252000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
1000 am edt thu jun 25 2026

.rest of today...north winds 5 to 15 knots. patchy fog by late
morning. waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots backing east in the afternoon.
waves calm to 2 feet. 
.friday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.saturday...east winds 5 to 15 knots increasing to 10 to 20 knots
by mid afternoon. waves calm to 2 feet. 
.saturday night...southeast winds 5 to 15 knots. waves calm to
2 feet. 
.sunday...east winds 20 to 30 knots becoming southeast 15 to
25 knots. a chance of showers. waves building to 3 to 6 feet
occasionally to 8 feet. 
.monday...southeast winds 15 to 25 knots veering south. a chance
of showers. waves subsiding to 1 to 3 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202606252000;;883631

open lake forecast for lake superior
national weather service marquette mi
1000 am edt thu jun 25 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 29.9 inch low currently tracking through lower michigan today 
continues towards the st. lawrence seaway tonight into friday. as it 
leaves the upper midwest, expect weak 30.0 inch ridging to return to 
lake superior today, building to 30.1 inches by friday morning and 
remaining that way into at least sunday morning. meanwhile late this 
weekend, a 29.2 inch low lifts from the rockies towards the northern 
plains and canadian prairies, eventually becoming a 29.0 inch low 
spinning over the canadian prairies by tuesday morning. expect this 
to cause progressively deepening troughing over lake superior early 
next week, with the troughing over the lake becoming 29.8 inches by 
tuesday morning. 




lsz266-252000-
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-
1000 am edt thu jun 25 2026

.rest of today...north winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon, then backing northwest late. patchy
fog by late morning. waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots backing west late. waves
calm to 2 feet. 
.friday...west winds 5 to 15 knots backing east in the afternoon,
then backing north late. waves calm to 2 feet. 
.friday night...east winds 5 to 15 knots backing north after
midnight. waves calm to 2 feet. 
.saturday...northeast winds 5 to 15 knots veering east by mid
afternoon. 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 15 to 25 knots. a chance of showers.
waves building to 3 to 6 feet occasionally to 8 feet. 
.monday...southeast winds 20 to 30 knots becoming south 15 to
25 knots. a chance of showers. waves subsiding to 2 to 4 feet. 

$$

fzus63 kmqt 251401
glfls 
expires:202606252000;;883632

open lake forecast for lake superior
national weather service marquette mi
1000 am edt thu jun 25 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 29.9 inch low currently tracking through lower michigan today 
continues towards the st. lawrence seaway tonight into friday. as it 
leaves the upper midwest, expect weak 30.0 inch ridging to return to 
lake superior today, building to 30.1 inches by friday morning and 
remaining that way into at least sunday morning. meanwhile late this 
weekend, a 29.2 inch low lifts from the rockies towards the northern 
plains and canadian prairies, eventually becoming a 29.0 inch low 
spinning over the canadian prairies by tuesday morning. expect this 
to cause progressively deepening troughing over lake superior early 
next week, with the troughing over the lake becoming 29.8 inches by 
tuesday morning. 




lsz267-252000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
1000 am edt thu jun 25 2026

.rest of today...northeast winds 5 to 15 knots backing north in
the afternoon, then increasing to 10 to 20 knots late. a chance
of showers. a slight chance of thunderstorms by mid afternoon.
waves calm to 2 feet. 
.tonight...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.friday...northwest winds 5 to 15 knots. waves calm to 2 feet. 
.friday night...north winds 5 to 15 knots. waves calm to 2 feet. 
.saturday...north winds 5 to 15 knots. waves calm to 2 feet. 
.saturday night...east winds 5 to 15 knots veering southeast
after midnight. waves calm to 2 feet. 
.sunday...east winds 10 to 20 knots becoming southeast 15 to
25 knots. a chance of showers. waves building to 3 to 5 feet
occasionally to 7 feet. 
.monday...southeast winds 20 to 30 knots diminishing to 15 to
25 knots. a chance of showers. waves building to 3 to 6 feet
occasionally to 8 feet, then subsiding to 2 to 4 feet. 

$$