fzus63 kdtx 270757
glflh 
expires:202605271600;;721911

open lake forecast for lake huron
national weather service detroit/pontiac mi
357 am edt wed may 27 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...high pressure, 30.30 inches, builds in from the north
offering weaker flow and mainly dry conditions for most of the
week.


lhz361-271600-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
357 am edt wed may 27 2026

.today...north winds 5 to 10 knots early in the morning becoming
light and variable...then becoming west 5 to 10 knots late in the
afternoon. waves 2 feet or less. 
.tonight...north winds 10 to 15 knots. waves 1 to 3 feet. 
.thursday...north winds 5 to 10 knots backing to the southwest
early in the afternoon. waves 2 feet or less. 
.thursday night...west winds 5 to 10 knots. waves 2 feet or less.
.friday...west winds 10 to 15 knots increasing to 15 to 20 knots
late in the morning...then decreasing to 10 to 15 knots late in
the afternoon veering to the west 10 to 15 knots late in the
evening. waves 1 to 3 feet building to 2 to 4 feet. 
.saturday...northeast winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and early afternoon...then veering
to the east early in the evening backing to the north by
midnight. waves 2 feet or less. 
.sunday...west winds 5 to 10 knots increasing to 10 to 15 knots .
waves 2 feet or less. 


$$

fzus63 kdtx 270757
glflh 
expires:202605271600;;721912

open lake forecast for lake huron
national weather service detroit/pontiac mi
357 am edt wed may 27 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...high pressure, 30.30 inches, builds in from the north
offering weaker flow and mainly dry conditions for most of the
week.


lhz362-363-271600-
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-
357 am edt wed may 27 2026

.today...north winds 5 to 10 knots. waves 1 to 3 feet. 
.tonight...north winds 5 to 10 knots increasing to 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.thursday...north winds 10 to 15 knots decreasing to 5 to
10 knots in the late morning and afternoon. waves 2 to 4 feet
subsiding to 1 to 3 feet early in the afternoon. 
.thursday night...light and variable winds becoming southwest
5 to 10 knots in the late evening and overnight. waves 2 feet or
less. 
.friday...west winds 5 to 10 knots becoming southwest 10 to
15 knots. waves 1 to 3 feet building to 2 to 4 feet. 
.saturday...northeast winds 10 to 15 knots becoming north 5 to
10 knots. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.sunday...northwest winds 5 to 10 knots increasing to 10 to
15 knots by midnight. waves 2 feet or less. 


$$

fzus63 kdtx 270757
glflh 
expires:202605271600;;721913

open lake forecast for lake huron
national weather service detroit/pontiac mi
357 am edt wed may 27 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...high pressure, 30.30 inches, builds in from the north
offering weaker flow and mainly dry conditions for most of the
week.


lhz462>464-271600-
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-
357 am edt wed may 27 2026

.today...north winds 5 to 10 knots. waves 2 feet or less. 
.tonight...north winds 5 to 10 knots increasing to 10 to 15 knots
early in the morning. waves 1 to 3 feet. 
.thursday...north winds 10 to 15 knots. waves 2 to 4 feet. 
.thursday night...north winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. 
.friday...southwest winds 5 to 10 knots becoming northwest 10 to
15 knots late in the afternoon. waves 2 feet or less. 
.saturday...north winds 10 to 15 knots decreasing to 5 to
10 knots by midnight. waves 2 to 4 feet. 
.sunday...north winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kmkx 270803
glflm 
expires:202605271515;;722353

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
303 am cdt wed may 27 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 backdoor cold front will accelerate southwestward across lake
michigan this afternoon with brisk northeast winds developing. winds
will remain north northeast through thursday, gradually weakening
thursday night as high pressure around 30.2 inches builds into 
the great lakes region. 

a brief period of west to southwest winds over northern parts of
the lake may occur friday, with lighter winds to the south, as the
high moves slowly southeast of the area. an additional backdoor 
cold front later friday night into saturday morning will allow 
for brisk north to northeast winds once again through saturday. 
winds should then weaken and remain fairly light through early 
next week, under high pressure around 30.1 inches.


lmz080-669-671-673-675-777-779-870-872-874-876-878-271515-
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-
303 am cdt wed may 27 2026

sheboygan wi to pentwater mi south...

.today...northeast winds 5 to 10 kt becoming north 15 to 25 kt.
waves 1 to 3 ft building to 2 to 4 ft. 
.tonight...north winds 15 to 25 kt. waves 3 to 5 ft building to
5 to 8 ft occasionally to 10 ft. 
.thursday...northeast winds 10 to 20 kt becoming north 15 to
25 kt. waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to
5 ft. 
.thursday night...north winds 10 to 20 kt becoming northeast 5 to
10 kt overnight. waves 2 to 4 ft. 
.friday...southwest winds 5 to 10 kt becoming south. waves 1 to
2 ft. 
.friday night...southeast winds 5 to 10 kt becoming east. waves
1 to 2 ft. 
.saturday...east winds 10 to 15 kt becoming northeast 10 to
20 kt. waves 1 to 3 ft building to 3 to 5 ft. 
.sunday...east winds 5 to 10 kt backing to north 10 to 20 kt.
waves 1 to 3 ft subsiding to 1 to 2 ft.  

$$

fzus63 kmkx 270803
glflm 
expires:202605271515;;722352

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
303 am cdt wed may 27 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 backdoor cold front will accelerate southwestward across lake
michigan this afternoon with brisk northeast winds developing. winds
will remain north northeast through thursday, gradually weakening
thursday night as high pressure around 30.2 inches builds into 
the great lakes region. 

a brief period of west to southwest winds over northern parts of
the lake may occur friday, with lighter winds to the south, as the
high moves slowly southeast of the area. an additional backdoor 
cold front later friday night into saturday morning will allow 
for brisk north to northeast winds once again through saturday. 
winds should then weaken and remain fairly light through early 
next week, under high pressure around 30.1 inches.


lmz261-362-364-366-563-565-567-868-271515-
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-
303 am cdt wed may 27 2026

sheboygan wi to pentwater mi north...

.today...northeast winds 5 to 10 kt becoming north 10 to 15 kt
late this morning, then increasing to 10 to 20 kt early this
afternoon increasing to 15 to 25 kt late. slight chance of
showers this afternoon. waves 1 to 3 ft building to 2 to 4 ft. 
.tonight...north winds 15 to 25 kt becoming northeast 10 to
20 kt. waves 3 to 5 ft. 
.thursday...northeast winds 10 to 20 kt becoming north 15 to
25 kt. waves 2 to 4 ft. 
.thursday night...northwest winds 10 to 20 kt becoming west 5 to
10 kt overnight. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.friday...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.friday night...southeast winds 10 to 20 kt backing to east.
waves 1 to 3 ft. 
.saturday...east winds 10 to 20 kt becoming northeast 15 to
25 kt. waves 1 to 3 ft building to 3 to 5 ft. 
.sunday...southwest winds 5 to 10 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmqt 270801
glfls 
expires:202605272000;;722132

open lake forecast for lake superior
national weather service marquette mi
400 am edt wed may 27 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... 

ridging of 30.2 inches persists over lake superior from a 30.4 inch 
high over hudson bay. this parent high shifts southward over the 
lake at 30.3 inches on thursday. the high weakens to around 30.1 
inches on friday as it continues its southerly propagation towards 
lower michigan. following this, a second ridge pushing in from 
hudson bay brings 30.1 inch ridging back over lake superior late on 
friday, with pressure increasing once again to 30.3 inches by 
saturday midday as the parent high over hudson bay propagates south. 
high pressure persists over lake superior through early next week.



lsz264-272000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
401 am edt wed may 27 2026

.early this morning...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.today...northeast winds 5 to 15 knots backing north in the
afternoon. waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots diminishing to less than
10 knots late. waves calm to 2 feet. 
.thursday...east winds less than 10 knots veering south late.
waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.friday...west winds 10 to 20 knots becoming south 5 to 15 knots
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 5 to 15 knots. waves subsiding to calm to
2 feet. 
.sunday...west winds 5 to 15 knots veering northeast. waves calm
to 2 feet. 

$$

fzus63 kmqt 270801
glfls 
expires:202605272000;;722133

open lake forecast for lake superior
national weather service marquette mi
400 am edt wed may 27 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... 

ridging of 30.2 inches persists over lake superior from a 30.4 inch 
high over hudson bay. this parent high shifts southward over the 
lake at 30.3 inches on thursday. the high weakens to around 30.1 
inches on friday as it continues its southerly propagation towards 
lower michigan. following this, a second ridge pushing in from 
hudson bay brings 30.1 inch ridging back over lake superior late on 
friday, with pressure increasing once again to 30.3 inches by 
saturday midday as the parent high over hudson bay propagates south. 
high pressure persists over lake superior through early next week.



lsz265-272000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
401 am edt wed may 27 2026

.early this morning...north winds 5 to 15 knots. waves calm to
2 feet. 
.today...northeast winds 5 to 15 knots becoming north 10 to
20 knots in the afternoon. waves calm to 2 feet. 
.tonight...north winds 10 to 20 knots becoming northeast 5 to
15 knots after midnight. waves building to 1 to 3 feet, then
subsiding to calm to 2 feet. 
.thursday...north winds 5 to 15 knots veering east in the
afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering west after
midnight. waves calm to 2 feet. 
.friday...west winds 10 to 20 knots veering north by mid
afternoon. waves building to 1 to 3 feet, then subsiding to 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 south 5 to
15 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.sunday...west winds 5 to 15 knots veering north. waves calm to
2 feet. 

$$

fzus63 kmqt 270801
glfls 
expires:202605272000;;722134

open lake forecast for lake superior
national weather service marquette mi
400 am edt wed may 27 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... 

ridging of 30.2 inches persists over lake superior from a 30.4 inch 
high over hudson bay. this parent high shifts southward over the 
lake at 30.3 inches on thursday. the high weakens to around 30.1 
inches on friday as it continues its southerly propagation towards 
lower michigan. following this, a second ridge pushing in from 
hudson bay brings 30.1 inch ridging back over lake superior late on 
friday, with pressure increasing once again to 30.3 inches by 
saturday midday as the parent high over hudson bay propagates south. 
high pressure persists over lake superior through early next week.



lsz266-272000-
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 am edt wed may 27 2026

.early this morning...north winds 5 to 15 knots. waves calm to
2 feet. 
.today...north winds 5 to 15 knots increasing to 10 to 20 knots
in the afternoon. waves building to 2 to 4 feet. 
.tonight...north winds 10 to 20 knots becoming northeast 5 to
15 knots after midnight, then backing north late. waves subsiding
to calm to 2 feet. 
.thursday...north winds 5 to 15 knots diminishing to less than
10 knots in the afternoon, then backing northwest late. waves
calm to 2 feet. 
.thursday night...south winds 5 to 15 knots becoming west 10 to
20 knots after midnight. waves calm to 2 feet. 
.friday...west winds 10 to 20 knots becoming north 5 to 15 knots
by mid afternoon. waves building to 1 to 3 feet, then subsiding
to calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots becoming east 10 to
20 knots after midnight. waves building to 1 to 3 feet. 
.saturday...east winds 10 to 20 knots becoming south 5 to
15 knots. waves building to 2 to 4 feet, then subsiding to calm
to 2 feet. 
.sunday...west winds 5 to 15 knots veering northeast. waves calm
to 2 feet. 

$$

fzus63 kmqt 270801
glfls 
expires:202605272000;;722135

open lake forecast for lake superior
national weather service marquette mi
400 am edt wed may 27 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... 

ridging of 30.2 inches persists over lake superior from a 30.4 inch 
high over hudson bay. this parent high shifts southward over the 
lake at 30.3 inches on thursday. the high weakens to around 30.1 
inches on friday as it continues its southerly propagation towards 
lower michigan. following this, a second ridge pushing in from 
hudson bay brings 30.1 inch ridging back over lake superior late on 
friday, with pressure increasing once again to 30.3 inches by 
saturday midday as the parent high over hudson bay propagates south. 
high pressure persists over lake superior through early next week.



lsz267-272000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
401 am edt wed may 27 2026

.early this morning...north winds 5 to 15 knots. patchy fog.
waves calm to 2 feet. 
.today...north winds 5 to 15 knots backing northwest in the
afternoon, then increasing to 15 to 25 knots late. patchy fog
through early afternoon. waves building to 2 to 4 feet. 
.tonight...north winds 15 to 25 knots becoming northeast 10 to
20 knots after midnight, then backing north late. waves subsiding
to calm to 2 feet. 
.thursday...north winds 5 to 15 knots backing northwest in the
afternoon. waves calm to 2 feet. 
.thursday night...southwest winds 5 to 15 knots veering west
after midnight. waves calm to 2 feet. 
.friday...west winds 5 to 15 knots veering northwest by mid
afternoon. waves calm to 2 feet. 
.friday night...northeast winds 5 to 15 knots becoming east 10 to
20 knots after midnight. waves building to 1 to 3 feet. 
.saturday...east winds 10 to 20 knots becoming south 5 to
15 knots. waves subsiding to calm to 2 feet. 
.sunday...west winds 5 to 15 knots becoming north 10 to 20 knots.
waves calm to 2 feet. 

$$

fzus63 kmqt 270801
glfls 
expires:202605272000;;722130

open lake forecast for lake superior
national weather service marquette mi
400 am edt wed may 27 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... 

ridging of 30.2 inches persists over lake superior from a 30.4 inch 
high over hudson bay. this parent high shifts southward over the 
lake at 30.3 inches on thursday. the high weakens to around 30.1 
inches on friday as it continues its southerly propagation towards 
lower michigan. following this, a second ridge pushing in from 
hudson bay brings 30.1 inch ridging back over lake superior late on 
friday, with pressure increasing once again to 30.3 inches by 
saturday midday as the parent high over hudson bay propagates south. 
high pressure persists over lake superior through early next week.



lsz162-272000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
401 am edt wed may 27 2026 /301 am cdt wed may 27 2026/

.early this morning...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.today...northeast winds 10 to 20 knots becoming east 15 to
25 knots in the afternoon, then backing northeast late. waves
building to 2 to 4 feet. 
.tonight...northeast winds 10 to 20 knots diminishing to 5 to
15 knots after midnight. waves subsiding to calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots veering east late.
waves calm to 2 feet. 
.thursday night...north winds 5 to 15 knots backing west after
midnight. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots. waves building to 1 to
3 feet. 
.friday night...northeast winds 5 to 15 knots increasing to 15 to
25 knots after midnight. waves subsiding to calm to 2 feet, then
building to 2 to 4 feet. 
.saturday...northeast winds 15 to 25 knots diminishing to 10 to
20 knots. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to calm to 2 feet. 
.sunday...east winds 5 to 15 knots backing northeast. waves calm
to 2 feet. 

$$

fzus63 kmqt 270801
glfls 
expires:202605272000;;722131

open lake forecast for lake superior
national weather service marquette mi
400 am edt wed may 27 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... 

ridging of 30.2 inches persists over lake superior from a 30.4 inch 
high over hudson bay. this parent high shifts southward over the 
lake at 30.3 inches on thursday. the high weakens to around 30.1 
inches on friday as it continues its southerly propagation towards 
lower michigan. following this, a second ridge pushing in from 
hudson bay brings 30.1 inch ridging back over lake superior late on 
friday, with pressure increasing once again to 30.3 inches by 
saturday midday as the parent high over hudson bay propagates south. 
high pressure persists over lake superior through early next week.



lsz263-272000-
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 am edt wed may 27 2026

.early this morning...northeast winds 5 to 15 knots. waves calm
to 2 feet. 
.today...northeast winds 10 to 20 knots increasing to 15 to
25 knots in the afternoon, then veering east late. waves building
to 2 to 4 feet. 
.tonight...east winds 10 to 20 knots becoming northeast 5 to
15 knots after midnight, then diminishing to less than 10 knots
late. waves subsiding to calm to 2 feet. 
.thursday...east winds 5 to 15 knots backing northeast in the
afternoon. waves calm to 2 feet. 
.thursday night...south winds 5 to 15 knots veering southwest
after midnight. waves calm to 2 feet. 
.friday...southwest winds 5 to 15 knots. waves building to 1 to
3 feet. 
.friday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves subsiding to calm to 2 feet, then
building to 2 to 4 feet. 
.saturday...east winds 10 to 20 knots. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to calm to 2 feet. 
.sunday...south winds 5 to 15 knots backing northeast. waves calm
to 2 feet. 

$$