fzus63 kdtx 140711
glflh 
expires:202604141515;;340224

open lake forecast for lake huron
national weather service detroit/pontiac mi
311 am edt tue apr 14 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...several disturbances ripple along a stalled warm front
this week, leading to multiple periods of showers and
thunderstorms especially overnight. a few of these storms may be
strong to severe.


lhz363-462>464-141515-
lake huron from sturgeon point to alabaster mi beyond 5nm off
shore-
lake huron from port austin to harbor beach beyond 5nm off shore-
lake huron from harbor beach to port sanilac beyond 5nm off shore-
lake huron from port sanilac to port huron beyond 5nm off shore-
311 am edt tue apr 14 2026

.today...southeast winds 10 to 15 knots. a chance of showers and
thunderstorms in the morning. patchy dense fog. waves 3 to
5 feet. 
.tonight...north winds 5 to 10 knots veering to the east late in
the evening...then backing to the east 5 to 10 knots after
midnight veering to the southeast early in the morning. a chance
of showers in the evening...then a chance of showers and
thunderstorms after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. 
.wednesday...southeast winds 5 to 10 knots backing to the north
in the late morning and early afternoon...then veering to the
southeast early in the afternoon. a chance of showers. waves 1 to
3 feet. 
.wednesday night...southeast winds 5 to 10 knots veering to the
south after midnight. showers likely and a chance of
thunderstorms. waves 2 feet or less. 
.thursday...southwest winds 10 to 15 knots. a chance of showers.
waves 2 to 4 feet. 
.friday...north winds 5 to 10 knots becoming southeast 10 to
15 knots by midnight. a chance of showers early in the morning.
waves 1 to 3 feet building to 3 to 5 feet by midnight. 
.saturday...southeast winds 15 to 20 knots becoming south 20 to
25 knots with gusts to around 30 knots in the late morning and
early afternoon...then decreasing to 15 to 20 knots early in the
evening becoming southwest 20 to 25 knots by midnight. showers
likely until afternoon. a chance of showers . waves 6 to 9 feet.
waves occasionally around 12 feet. 


$$

fzus63 kdtx 140711
glflh 
expires:202604141515;;340223

open lake forecast for lake huron
national weather service detroit/pontiac mi
311 am edt tue apr 14 2026

for waters beyond five nautical miles off shore on lake huron

waves are the significant wave height - the average of the highest
1/3 of the wave spectrum. occasional wave height is the average of
the highest 1/10 of the wave spectrum.

.synopsis...several disturbances ripple along a stalled warm front
this week, leading to multiple periods of showers and
thunderstorms especially overnight. a few of these storms may be
strong to severe.


lhz361-362-141515-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
lake huron from presque isle light to sturgeon point mi beyond
5nm off shore-
311 am edt tue apr 14 2026

.today...northeast winds 10 to 15 knots becoming 5 to 10 knots
late in the afternoon. a chance of showers in the morning. patchy
fog. waves 2 to 4 feet. 
.tonight...east winds 5 to 10 knots. patchy dense fog in the
evening. a chance of showers after midnight. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.wednesday...northeast winds 5 to 10 knots veering to the east
early in the afternoon. waves 1 to 3 feet. 
.wednesday night...east winds 5 to 10 knots. a chance of showers
and thunderstorms in the evening...then showers likely and a
chance of thunderstorms after midnight. waves 1 to 3 feet. 
.thursday...north winds 10 to 15 knots backing to the west late
in the morning...then becoming northwest 5 to 10 knots late in
the afternoon. a chance of showers. waves 1 to 3 feet. 
.friday...northeast winds 10 to 15 knots veering to the east
early in the evening...then becoming southeast 15 to 20 knots by
midnight. waves 1 to 3 feet building to 5 to 7 feet. waves
occasionally around 10 feet. 
.saturday...southeast winds 20 to 25 knots with gusts to around
30 knots becoming southwest to 30 knots by midnight. a chance of
showers early in the morning...then showers likely in the late
morning and early afternoon. a chance of showers . waves 8 to
12 feet. waves occasionally around 15 feet. 


$$

fzus63 kmkx 140323
glflm 
expires:202604140900;;329972

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1023 pm cdt mon apr 13 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...

shower and thunderstorm activity is expected across lake michigan
late this evening into tonight as low pressure of 29.6 inches 
over southeast minnesota continues to head northeast. winds will 
be easterly north of a frontal boundary across roughly the 
northern half of the lake, with southerly winds expected in the 
south. then expecting another a couple passing low pressure system
to develop in the plains and track across lake michigan again on 
tuesday and wednesday. each system will bring a chance for showers
and thunderstorms through the middle of the week. areas of dense 
fog will likely occur at times due to a relatively mild and humid 
airmass over the cold waters paired with lighter winds.


lmz565-567-140900-
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-
1023 pm cdt mon apr 13 2026

sturgeon bay wi to point betsie mi south to sheboygan wi to
pentwater mi...

...severe thunderstorm watch 106 in effect until 4 am cdt
tuesday...
...dense fog advisory in effect until 7 am cdt tuesday...

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

$$

fzus63 kmkx 140323
glflm 
expires:202604140900;;329973

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1023 pm cdt mon apr 13 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...

shower and thunderstorm activity is expected across lake michigan
late this evening into tonight as low pressure of 29.6 inches 
over southeast minnesota continues to head northeast. winds will 
be easterly north of a frontal boundary across roughly the 
northern half of the lake, with southerly winds expected in the 
south. then expecting another a couple passing low pressure system
to develop in the plains and track across lake michigan again on 
tuesday and wednesday. each system will bring a chance for showers
and thunderstorms through the middle of the week. areas of dense 
fog will likely occur at times due to a relatively mild and humid 
airmass over the cold waters paired with lighter winds.


lmz669-671-673-675-140900-
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-
1023 pm cdt mon apr 13 2026

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

...severe thunderstorm watch 106 in effect until 4 am cdt
tuesday...
...dense fog advisory in effect until 7 am cdt tuesday...

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

$$

fzus63 kmkx 140323
glflm 
expires:202604140900;;329971

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1023 pm cdt mon apr 13 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...

shower and thunderstorm activity is expected across lake michigan
late this evening into tonight as low pressure of 29.6 inches 
over southeast minnesota continues to head northeast. winds will 
be easterly north of a frontal boundary across roughly the 
northern half of the lake, with southerly winds expected in the 
south. then expecting another a couple passing low pressure system
to develop in the plains and track across lake michigan again on 
tuesday and wednesday. each system will bring a chance for showers
and thunderstorms through the middle of the week. areas of dense 
fog will likely occur at times due to a relatively mild and humid 
airmass over the cold waters paired with lighter winds.


lmz261-362-364-366-563-868-140900-
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 pentwater to manistee mi 5 nm offshore to mid
lake-
1023 pm cdt mon apr 13 2026

sturgeon bay wi to point betsie mi north...

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

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

$$

fzus63 kmkx 140323
glflm 
expires:202604140900;;329974

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
1023 pm cdt mon apr 13 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...

shower and thunderstorm activity is expected across lake michigan
late this evening into tonight as low pressure of 29.6 inches 
over southeast minnesota continues to head northeast. winds will 
be easterly north of a frontal boundary across roughly the 
northern half of the lake, with southerly winds expected in the 
south. then expecting another a couple passing low pressure system
to develop in the plains and track across lake michigan again on 
tuesday and wednesday. each system will bring a chance for showers
and thunderstorms through the middle of the week. areas of dense 
fog will likely occur at times due to a relatively mild and humid 
airmass over the cold waters paired with lighter winds.


lmz870-872-874-876-140900-
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-
1023 pm cdt mon apr 13 2026

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

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

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

$$

fzus63 kmkx 140206 aaa
glflm 
expires:202604140915;;327188

open lake forecast for lake michigan...updated
national weather service milwaukee/sullivan wi
906 pm cdt mon apr 13 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...

shower and thunderstorm activity is expected across lake michigan
late this evening into tonight as low pressure of 29.6 inches 
over southeast minnesota continues to head northeast. winds will 
be easterly north of a frontal boundary across roughly the 
northern half of the lake, with southerly winds expected in the 
south. then expecting another a couple passing low pressure system
to develop in the plains and track across lake michigan again on 
tuesday and wednesday. each system will bring a chance for showers
and thunderstorms through the middle of the week. areas of dense 
fog will likely occur at times due to a relatively mild and humid 
airmass over the cold waters paired with lighter winds.


lmz669-671-673-675-870-872-874-876-140915-
lake michigan from sheboygan to port washington wi 5 nm offshore
to mid lake-
lake michigan from port washington to north point light wi 5 nm
offshore to mid lake-
lake michigan from north point light to wind point wi 5 nm
offshore to mid lake-
lake michigan from wind point wi to winthrop harbor il 5 nm
offshore to mid lake-
lake michigan from whitehall to pentwater mi 5 nm offshore to mid
lake-
lake michigan from grand haven to whitehall mi 5 nm offshore to
mid lake-
lake michigan from holland to grand haven mi 5 nm offshore to mid
lake-
lake michigan from south haven to holland mi 5 nm offshore to mid
lake-
906 pm cdt mon apr 13 2026

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

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

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

$$

fzus63 kmkx 140206 aaa
glflm 
expires:202604140915;;327187

open lake forecast for lake michigan...updated
national weather service milwaukee/sullivan wi
906 pm cdt mon apr 13 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...

shower and thunderstorm activity is expected across lake michigan
late this evening into tonight as low pressure of 29.6 inches 
over southeast minnesota continues to head northeast. winds will 
be easterly north of a frontal boundary across roughly the 
northern half of the lake, with southerly winds expected in the 
south. then expecting another a couple passing low pressure system
to develop in the plains and track across lake michigan again on 
tuesday and wednesday. each system will bring a chance for showers
and thunderstorms through the middle of the week. areas of dense 
fog will likely occur at times due to a relatively mild and humid 
airmass over the cold waters paired with lighter winds.


lmz261-362-364-366-563-565-567-868-140915-
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-
906 pm cdt mon apr 13 2026

sheboygan wi to pentwater mi north...

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

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

$$

fzus63 kmkx 140151
glflm 
expires:202604140915;;326697

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
851 pm cdt mon apr 13 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...

shower and thunderstorm activity is expected across lake michigan
late this evening into tonight as low pressure of 29.6 inches 
over southeast minnesota continues to head northeast. winds will 
be easterly north of a frontal boundary across roughly the 
northern half of the lake, with southerly winds expected in the 
south. then expecting another a couple passing low pressure system
to develop in the plains and track across lake michigan again on 
tuesday and wednesday. each system will bring a chance for showers
and thunderstorms through the middle of the week. areas of dense 
fog will likely occur at times due to a relatively mild and humid 
airmass over the cold waters paired with lighter winds.


lmz080-669-671-673-675-777-779-870-872-874-876-878-140915-
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-
851 pm cdt mon apr 13 2026

sheboygan wi to pentwater mi south...

.rest of tonight...south winds 10 to 20 kt becoming southwest to
30 kt. patchy fog. slight chance of rain showers and
thunderstorms through early evening, then chance of rain showers
and thunderstorms overnight. waves 1 to 3 ft building to 3 to
5 ft. 
.tuesday...southwest winds 10 to 20 kt increasing to 15 to 25 kt,
then becoming south 10 to 20 kt late. patchy dense fog in the
morning. chance of rain showers and thunderstorms in the morning,
then slight chance of rain showers and thunderstorms in the
afternoon. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.tuesday night...south winds 10 to 20 kt becoming southwest. rain
showers likely with a chance of thunderstorms in the evening,
then chance of rain showers and thunderstorms overnight. waves
2 to 4 ft. 
.wednesday...southwest winds 10 to 15 kt becoming south. chance
of rain showers in the morning, then rain showers likely in the
afternoon. waves 2 to 4 ft. 
.wednesday night...southeast winds 10 to 15 kt becoming south
10 to 20 kt. rain showers with a chance of thunderstorms in the
evening, then rain showers likely with a chance of thunderstorms
overnight. waves 2 to 4 ft. 
.thursday...southwest winds 10 to 20 kt. rain showers likely.
waves 2 to 4 ft. 
.thursday night...northwest winds 10 to 15 kt becoming north.
waves 2 to 4 ft. 
.friday...east winds 10 to 15 kt becoming southeast 10 to 20 kt.
waves 1 to 3 ft building to 2 to 4 ft. 
.saturday...south winds to 30 kt becoming southwest. rain showers
likely. waves 7 to 10 ft occasionally to 13 ft.  

$$

fzus63 kmqt 140801
glfls 
expires:202604142000;;341569

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue apr 14 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 29.6 inch low over iowa early this morning lifts through northern 
lower michigan at 29.6 inches by mid morning. following this, weak 
ridging of around 29.8 to 29.9 inches moves back over lake superior 
from northern ontario this afternoon through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.2 inches over ontario 
sunday.



lsz162-142000-
lake superior west of a line from saxon harbor wi to grand
portage mn beyond 5nm-
400 am edt tue apr 14 2026 /300 am cdt tue apr 14 2026/

.early this morning...northeast winds 15 to 25 knots. patchy fog.
a slight chance of rain showers. waves 1 to 3 feet. 
.today...northeast winds 15 to 25 knots diminishing to 10 to
20 knots in the afternoon. patchy fog. a chance of rain showers.
waves subsiding to calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots backing north after
midnight. patchy fog. waves calm to 2 feet. 
.wednesday...northeast winds 5 to 15 knots. patchy fog through
early afternoon. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots. a slight chance
of rain showers. waves calm to 2 feet. 
.thursday...northeast winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.thursday night...northeast winds 10 to 20 knots. waves building
to 3 to 5 feet occasionally to 7 feet. 
.friday...northeast winds 10 to 20 knots becoming north 20 to
30 knots. a chance of rain showers, then rain showers, possibly
mixed with snow. waves building to 5 to 8 feet occasionally to
10 feet. 
.saturday...northwest winds 20 to 30 knots increasing to gales to
35 knots. a chance of rain showers. a chance of snow showers.
waves subsiding to 4 to 7 feet occasionally to 9 feet, then
building to 6 to 9 feet occasionally to 11 feet. 

$$

fzus63 kmqt 140801
glfls 
expires:202604142000;;341570

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue apr 14 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 29.6 inch low over iowa early this morning lifts through northern 
lower michigan at 29.6 inches by mid morning. following this, weak 
ridging of around 29.8 to 29.9 inches moves back over lake superior 
from northern ontario this afternoon through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.2 inches over ontario 
sunday.



lsz263-142000-
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 tue apr 14 2026

.early this morning...northeast winds 10 to 20 knots. patchy fog.
a slight chance of rain showers. waves 1 to 3 feet. 
.today...northeast winds 10 to 20 knots diminishing to 5 to
15 knots in the afternoon. patchy fog. a slight chance of rain
showers. a slight chance of thunderstorms by mid afternoon. waves
subsiding to calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots becoming north less than
10 knots after midnight, then veering northeast late. patchy fog
through midnight, then areas of dense fog after midnight. waves
calm to 2 feet. 
.wednesday...northeast winds less than 10 knots. patchy fog
through early afternoon. waves calm to 2 feet. 
.wednesday night...northeast winds less than 10 knots becoming
north 5 to 15 knots after midnight. a slight chance of rain
showers. waves calm to 2 feet. 
.thursday...north winds 5 to 15 knots veering east by mid
afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday...east winds 15 to 25 knots increasing to 20 to 30 knots.
rain showers, possibly mixed with snow. waves building to 7 to
10 feet occasionally to 13 feet. 
.saturday...northwest gales to 40 knots. a chance of rain
showers. a chance of snow showers. waves building to 10 to
14 feet occasionally to 18 feet. 

$$

fzus63 kmqt 140801
glfls 
expires:202604142000;;341571

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue apr 14 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 29.6 inch low over iowa early this morning lifts through northern 
lower michigan at 29.6 inches by mid morning. following this, weak 
ridging of around 29.8 to 29.9 inches moves back over lake superior 
from northern ontario this afternoon through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.2 inches over ontario 
sunday.



lsz264-142000-
lake superior from upper entrance to portage canal to manitou
island mi 5nm off shore to the us/canadian border-
400 am edt tue apr 14 2026

.early this morning...northeast winds 5 to 15 knots. patchy fog.
a chance of rain showers. waves calm to 2 feet. 
.today...northeast winds 5 to 15 knots. patchy fog. a chance of
rain showers. a slight chance of thunderstorms by mid afternoon.
waves calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots becoming north less than
10 knots after midnight. patchy fog. waves calm to 2 feet. 
.wednesday...north winds less than 10 knots veering northeast in
the afternoon. patchy fog through early afternoon. waves calm to
2 feet. 
.wednesday night...northeast winds less than 10 knots backing
north after midnight. a slight chance of rain showers. waves calm
to 2 feet. 
.thursday...west winds 5 to 15 knots veering north by mid
afternoon. waves calm to 2 feet. 
.thursday night...east winds 5 to 15 knots increasing to 10 to
20 knots after midnight. waves building to 3 to 5 feet
occasionally to 7 feet. 
.friday...east winds 20 to 30 knots becoming southeast gales to
35 knots. rain showers, possibly mixed with snow. waves building
to 9 to 12 feet occasionally to 15 feet. 
.saturday...northwest gales to 40 knots. a chance of rain and
snow showers. waves building to 10 to 14 feet occasionally to
18 feet, then subsiding to 9 to 12 feet occasionally to 15 feet. 

$$

fzus63 kmqt 140801
glfls 
expires:202604142000;;341572

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue apr 14 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 29.6 inch low over iowa early this morning lifts through northern 
lower michigan at 29.6 inches by mid morning. following this, weak 
ridging of around 29.8 to 29.9 inches moves back over lake superior 
from northern ontario this afternoon through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.2 inches over ontario 
sunday.



lsz265-142000-
lake superior west of line from manitou island to marquette mi
beyond 5nm from shore-
400 am edt tue apr 14 2026

.early this morning...northeast winds 10 to 20 knots. patchy fog.
a slight chance of rain showers. waves calm to 2 feet. 
.today...northeast winds 10 to 20 knots becoming east 5 to
15 knots in the afternoon, then backing northeast late. a slight
chance of rain showers through early afternoon. patchy fog. waves
calm to 2 feet. 
.tonight...northeast winds 5 to 15 knots backing northwest after
midnight. areas of dense fog. waves calm to 2 feet. 
.wednesday...northwest winds 5 to 15 knots veering northeast
late. patchy fog through early afternoon. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots becoming
northwest 10 to 20 knots after midnight. a chance of rain
showers. waves calm to 2 feet. 
.thursday...northwest winds 10 to 20 knots veering east by mid
afternoon. waves calm to 2 feet. 
.thursday night...east winds 10 to 20 knots increasing to 15 to
25 knots after midnight. waves building to 2 to 4 feet. 
.friday...southeast winds 20 to 30 knots increasing to gales to
35 knots. rain showers. waves building to 7 to 10 feet
occasionally to 13 feet. 
.saturday...west gales to 45 knots. rain showers likely. a chance
of snow showers. a chance of rain showers. waves subsiding to
6 to 9 feet occasionally to 11 feet, then building to 10 to
14 feet occasionally to 18 feet. 

$$

fzus63 kmqt 140801
glfls 
expires:202604142000;;341573

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue apr 14 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 29.6 inch low over iowa early this morning lifts through northern 
lower michigan at 29.6 inches by mid morning. following this, weak 
ridging of around 29.8 to 29.9 inches moves back over lake superior 
from northern ontario this afternoon through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.2 inches over ontario 
sunday.



lsz266-142000-
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 tue apr 14 2026

.early this morning...northeast winds 10 to 20 knots. patchy fog.
a chance of rain showers. waves calm to 2 feet building to 1 to
3 feet. 
.today...northeast winds 10 to 20 knots becoming east 5 to
15 knots in the afternoon. patchy fog. a slight chance of rain
showers. waves subsiding to calm to 2 feet. 
.tonight...east winds 5 to 15 knots backing north after midnight,
then increasing to 10 to 20 knots late. patchy fog through
midnight, then areas of dense fog after midnight. waves calm to
2 feet. 
.wednesday...north winds 5 to 15 knots veering northeast late.
patchy fog through early afternoon. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots backing north
after midnight. a chance of rain showers. waves calm to 2 feet. 
.thursday...north winds 10 to 20 knots. a chance of rain showers.
waves calm to 2 feet. 
.thursday night...east winds 10 to 20 knots. waves building to
2 to 4 feet. 
.friday...southeast winds 20 to 30 knots increasing to gales to
35 knots. a chance of rain showers. waves building to 9 to
12 feet occasionally to 15 feet. 
.saturday...west gales to 45 knots. rain showers likely. a chance
of snow showers. a chance of rain showers. waves building to
10 to 14 feet occasionally to 18 feet, then subsiding to 9 to
12 feet occasionally to 15 feet. 

$$

fzus63 kmqt 140801
glfls 
expires:202604142000;;341574

open lake forecast for lake superior
national weather service marquette mi
400 am edt tue apr 14 2026

for waters beyond 5 nautical miles of shore on lake superior.

waves are the significant wave height - the average of the
highest 1/3 of the wave spectrum. occasional wave height is the
average of the highest 1/10 of the wave spectrum.

.synopsis...

a 29.6 inch low over iowa early this morning lifts through northern 
lower michigan at 29.6 inches by mid morning. following this, weak 
ridging of around 29.8 to 29.9 inches moves back over lake superior 
from northern ontario this afternoon through wednesday before 
another low from the central plains lifts through lower michigan or 
closer to the straits at around 29.7 inches. ridging increases to 
29.8 inches over lake superior later in the day thursday before 
troughing of 29.4 to 29.6 inches moves across the lake friday 
through saturday. this deepens further to 29.2 inches over ontario 
sunday.



lsz267-142000-
lake superior from grand marais mi to whitefish point mi 5nm off
shore to the us/canadian border-
400 am edt tue apr 14 2026

.early this morning...northeast winds 10 to 20 knots. patchy fog.
a chance of rain showers. waves calm to 2 feet. 
.today...northeast winds 10 to 20 knots becoming east 5 to
15 knots in the afternoon. a chance of rain showers through early
afternoon. patchy fog. waves calm to 2 feet. 
.tonight...east winds 5 to 15 knots veering south late. patchy
fog through midnight, then areas of dense fog after midnight.
waves calm to 2 feet. 
.wednesday...north winds 5 to 15 knots veering northeast in the
afternoon, then backing north late. areas of dense fog through
early afternoon. waves calm to 2 feet. 
.wednesday night...northeast winds 5 to 15 knots backing north
after midnight. a chance of rain showers. waves calm to 2 feet. 
.thursday...north winds 10 to 20 knots. a chance of rain showers.
waves calm to 2 feet. 
.thursday night...northeast winds 5 to 15 knots becoming east
10 to 20 knots after midnight. waves building to 1 to 3 feet. 
.friday...southeast winds 10 to 20 knots increasing to 20 to
30 knots. rain showers likely. waves building to 2 to 4 feet,
then subsiding to 1 to 3 feet. 
.saturday...south gales to 35 knots becoming west gales to
40 knots. rain showers, possibly mixed with snow, then a chance
of snow showers, possibly mixed with rain. waves building to
15 to 20 feet occasionally to 25 feet. 

$$