fzus63 kdtx 291946
glflh 
expires:202608300400;;568684

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 pm edt sat aug 29 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...the great lakes are located in between the exiting
high pressure system, 30.30 inches, centered over the mid
atlantic coast and low pressure, 29.70 inches, developing over
the dakotas. active pattern returns late sunday into monday as a
warm front lifts through the area bringing showers and storms.


lhz361-300400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
346 pm edt sat aug 29 2026

.tonight...southwest winds 5 to 10 knots. a chance of showers in
the evening...then showers likely after midnight. waves 2 feet or
less. 
.sunday...southeast winds 5 to 10 knots. a chance of showers.
waves 2 feet or less. 
.sunday night...east winds 5 to 10 knots. waves 2 feet or less. 
.monday...east winds 10 to 15 knots. a chance of showers in the
morning...then showers and a chance of thunderstorms in the
afternoon. waves 1 to 3 feet. 
.monday night...southeast winds 5 to 10 knots. a chance of
showers. waves 1 to 3 feet. 
.tuesday...west winds 5 to 10 knots in the morning becoming light
and variable...then becoming southeast 5 to 10 knots late in the
evening. a chance of showers late in the afternoon. waves 2 feet
or less. 
.wednesday...southwest winds 5 to 10 knots veering to the
northwest by midnight. a chance of showers. waves 2 feet or less.
.thursday...northwest winds 5 to 10 knots until afternoon
becoming light and variable. waves 2 feet or less. 


$$

fzus63 kdtx 291946
glflh 
expires:202608300400;;568685

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 pm edt sat aug 29 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...the great lakes are located in between the exiting
high pressure system, 30.30 inches, centered over the mid
atlantic coast and low pressure, 29.70 inches, developing over
the dakotas. active pattern returns late sunday into monday as a
warm front lifts through the area bringing showers and storms.


lhz362-363-300400-
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-
346 pm edt sat aug 29 2026

.tonight...southwest winds 5 to 10 knots. a chance of showers.
waves 2 to 4 feet subsiding to 1 to 3 feet in the late evening
and overnight. 
.sunday...south winds 5 to 10 knots. showers likely and a chance
of thunderstorms in the morning...then showers likely in the
afternoon. waves 2 feet or less. 
.sunday night...east winds 5 to 10 knots. a chance of showers.
waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots. a chance of showers in
the morning...then showers likely in the afternoon. waves 2 feet
or less. 
.monday night...southeast winds 5 to 10 knots veering to the
south after midnight. a chance of showers. waves 2 feet or less. 
.tuesday...southwest winds 5 to 10 knots in the morning becoming
light and variable...then becoming east 5 to 10 knots late in the
afternoon veering to the south. a chance of thunderstorms late in
the afternoon. a chance of showers late in the afternoon. waves
2 feet or less. 
.wednesday...southwest winds 5 to 10 knots veering to the north .
a chance of showers. waves 2 feet or less. 
.thursday...northwest winds 5 to 10 knots. a chance of showers
early in the morning. waves 2 feet or less. 


$$

fzus63 kdtx 291946
glflh 
expires:202608300400;;568686

open lake forecast for lake huron
national weather service detroit/pontiac mi
346 pm edt sat aug 29 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...the great lakes are located in between the exiting
high pressure system, 30.30 inches, centered over the mid
atlantic coast and low pressure, 29.70 inches, developing over
the dakotas. active pattern returns late sunday into monday as a
warm front lifts through the area bringing showers and storms.


lhz462>464-300400-
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-
346 pm edt sat aug 29 2026

.tonight...south winds 10 to 15 knots becoming southwest 5 to
10 knots by midnight...then veering to the west early in the
morning. a chance of showers after midnight. waves 1 to 3 feet. 
.sunday...south winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon...then decreasing to 5 to 10 knots late in
the afternoon. showers. waves 2 feet or less. 
.sunday night...southeast winds 5 to 10 knots. showers likely in
the evening...then a chance of showers after midnight. waves
2 feet or less. 
.monday...southeast winds 5 to 10 knots. a chance of showers.
waves 2 feet or less. 
.monday night...south winds 5 to 10 knots veering to the
southwest after midnight. a chance of showers. waves 2 feet or
less. 
.tuesday...southwest winds 5 to 10 knots backing to the east late
in the afternoon...then veering to the southeast late in the
evening. a chance of showers in the morning. a chance of showers
and thunderstorms late in the afternoon. waves 2 feet or less. 
.wednesday...southwest winds 5 to 10 knots backing to the east
early in the evening...then backing to the east 5 to 10 knots by
midnight. a chance of showers. a chance of thunderstorms until
early evening. waves 2 feet or less. 
.thursday...northwest winds 5 to 10 knots. a chance of showers
early in the morning. waves 2 feet or less. 


$$

fzus63 kmkx 291952
glflm 
expires:202608300330;;568847

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
252 pm cdt sat aug 29 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...

high pressure around 30.2 inches will continue to move  east of 
the lower great lakes into this evening, while low pressure 
deepens to around 29.6 inches in the central great plains tonight.
this will support modest to breezy southerly winds this afternoon
through this evening. tonight a warm front is expected to lift
northward over the lake, and the presence of a jet aloft may cause
some gusty southerly winds to 30 knots over the south half of the
lake on sunday. 

breezy southerlies then remain into monday as the low will lift
northeast from the plains toward western lake superior. scattered
thunderstorms will occur at times from tonight into next week. a 
weak cold front will finally arrive late tuesday night and 
wednesday with light northerly winds eventually taking hold.


lmz261-362-364-366-563-565-567-868-300330-
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-
252 pm cdt sat aug 29 2026

sheboygan wi to pentwater mi north...

.tonight...southwest winds 15 to 25 kt becoming south. chance of
showers and slight chance of thunderstorms this evening, then
showers likely overnight. waves 3 to 5 ft. 
.sunday...south winds 10 to 20 kt becoming southeast. patchy fog
in the morning. chance of showers in the morning, then chance of
showers and slight chance of thunderstorms in the afternoon.
waves 4 to 6 ft occasionally to 8 ft. 
.sunday night...east winds 10 to 15 kt becoming southeast 10 to
20 kt. chance of showers in the evening. waves 3 to 5 ft
subsiding to 2 to 4 ft. 
.monday...southeast winds 10 to 20 kt becoming south 15 to 25 kt.
chance of showers. waves 3 to 5 ft. 
.monday night...south winds 15 to 25 kt becoming west 10 to 15 kt
overnight. chance of showers overnight. waves 3 to 5 ft subsiding
to 2 to 4 ft. 
.tuesday...south winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft. 
.tuesday night...south winds 10 to 15 kt becoming southwest 5 to
10 kt. chance of showers. waves 1 to 2 ft. 
.wednesday...southwest winds 10 to 15 kt veering to north. waves
1 to 2 ft. 
.thursday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 291952
glflm 
expires:202608300330;;568848

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
252 pm cdt sat aug 29 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...

high pressure around 30.2 inches will continue to move  east of 
the lower great lakes into this evening, while low pressure 
deepens to around 29.6 inches in the central great plains tonight.
this will support modest to breezy southerly winds this afternoon
through this evening. tonight a warm front is expected to lift
northward over the lake, and the presence of a jet aloft may cause
some gusty southerly winds to 30 knots over the south half of the
lake on sunday. 

breezy southerlies then remain into monday as the low will lift
northeast from the plains toward western lake superior. scattered
thunderstorms will occur at times from tonight into next week. a 
weak cold front will finally arrive late tuesday night and 
wednesday with light northerly winds eventually taking hold.


lmz080-669-671-673-675-777-779-870-872-874-876-878-300330-
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-
252 pm cdt sat aug 29 2026

sheboygan wi to pentwater mi south...

.tonight...south winds 10 to 20 kt increasing to 15 to 25 kt.
slight chance of showers this evening, then chance of showers and
slight chance of thunderstorms overnight. waves 3 to 5 ft. 
.sunday...south winds to 30 kt diminishing to 15 to 25 kt. chance
of showers and slight chance of thunderstorms in the morning,
then slight chance of showers and thunderstorms in the afternoon.
waves 4 to 6 ft occasionally to 8 ft. 
.sunday night...south winds 15 to 25 kt diminishing to 10 to
20 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.monday...south winds 10 to 20 kt increasing to 15 to 25 kt.
chance of showers in the morning. waves 3 to 5 ft. 
.monday night...southwest winds 10 to 20 kt diminishing to 10 to
15 kt. waves 3 to 5 ft subsiding to 2 to 4 ft. 
.tuesday...southwest winds 10 to 15 kt becoming south. waves 1 to
3 ft. 
.tuesday night...south winds 10 to 15 kt becoming southwest.
waves 1 to 2 ft. 
.wednesday...southwest winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 to 2 ft. 
.thursday...north winds 10 to 15 kt increasing to 10 to 20 kt.
waves 1 to 3 ft.  

$$