fzus63 kdtx 211959
glflh 
expires:202609220400;;834735

open lake forecast for lake huron
national weather service detroit/pontiac mi
359 pm edt mon sep 21 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.40 inches, lingers over ontario,
building southeastward early this week. this leads to prolonged
moderate northeast winds over the central great lakes with mainly
dry conditions. sporadic light shower chances exist over lake st.
clair and western erie this evening and/or tuesday night. a weak
low pressure system should emerge over the northern portion of
the ohio valley on wednesday, and could lead to slightly broader
coverage of showers for the south-central great lakes on
wednesday.


lhz361-220400-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
359 pm edt mon sep 21 2026

.tonight...northeast winds 5 to 10 knots becoming east 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet after
midnight. 
.tuesday...east winds 15 to 20 knots decreasing to 10 to 15 knots
in the afternoon. waves 2 to 4 feet. 
.tuesday night...east winds 5 to 10 knots increasing to 15 to
20 knots. waves 1 to 3 feet building to 2 to 4 feet in the late
evening and overnight. 
.wednesday...east winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. waves 3 to 5 feet. 
.wednesday night...east winds 10 to 15 knots decreasing to 5 to
10 knots after midnight. waves 2 to 4 feet subsiding to 1 to
3 feet in the late evening and overnight. 
.thursday...southeast winds 5 to 10 knots in the morning
increasing to 10 to 15 knots...then becoming east 5 to 10 knots
late in the afternoon becoming light and variable. waves 2 feet
or less. 
.friday...light and variable winds. waves 2 feet or less. 
.saturday...light and variable winds. waves 2 feet or less. 


$$

fzus63 kdtx 211959
glflh 
expires:202609220400;;834736

open lake forecast for lake huron
national weather service detroit/pontiac mi
359 pm edt mon sep 21 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.40 inches, lingers over ontario,
building southeastward early this week. this leads to prolonged
moderate northeast winds over the central great lakes with mainly
dry conditions. sporadic light shower chances exist over lake st.
clair and western erie this evening and/or tuesday night. a weak
low pressure system should emerge over the northern portion of
the ohio valley on wednesday, and could lead to slightly broader
coverage of showers for the south-central great lakes on
wednesday.


lhz362-363-220400-
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-
359 pm edt mon sep 21 2026

.tonight...northeast winds 15 to 20 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.tuesday...northeast winds 15 to 20 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.tuesday night...east winds 15 to 20 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.wednesday...east winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. waves 3 to 5 feet. 
.wednesday night...northeast winds 15 to 20 knots becoming east
10 to 15 knots in the late evening and overnight. waves 2 to
4 feet. 
.thursday...east winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then becoming east 5 to 10 knots late in
the afternoon. waves 1 to 3 feet. 
.friday...light and variable winds becoming northeast 5 to
10 knots. waves 2 feet or less. 
.saturday...north winds 5 to 10 knots until afternoon becoming
light and variable. waves 2 feet or less. 


$$

fzus63 kdtx 211959
glflh 
expires:202609220400;;834737

open lake forecast for lake huron
national weather service detroit/pontiac mi
359 pm edt mon sep 21 2026

for waters beyond five nautical miles off shore on lake huron

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

.synopsis...high pressure, 30.40 inches, lingers over ontario,
building southeastward early this week. this leads to prolonged
moderate northeast winds over the central great lakes with mainly
dry conditions. sporadic light shower chances exist over lake st.
clair and western erie this evening and/or tuesday night. a weak
low pressure system should emerge over the northern portion of
the ohio valley on wednesday, and could lead to slightly broader
coverage of showers for the south-central great lakes on
wednesday.


lhz462>464-220400-
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-
359 pm edt mon sep 21 2026

.tonight...northeast winds 15 to 20 knots. waves 3 to 5 feet. 
.tuesday...northeast winds 15 to 20 knots. waves 3 to 5 feet. 
.tuesday night...east winds 15 to 20 knots. waves 4 to 6 feet.
waves occasionally around 8 feet. 
.wednesday...east winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. waves 3 to 5 feet. 
.wednesday night...east winds 15 to 20 knots decreasing to 10 to
15 knots after midnight. waves 3 to 5 feet. 
.thursday...east winds 10 to 15 knots decreasing to 5 to 10 knots
late in the morning...then becoming east 5 to 10 knots late in
the afternoon. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.friday...east winds 5 to 10 knots becoming north 10 to 15 knots
early in the evening...then becoming northeast 5 to 10 knots by
midnight. waves 1 to 3 feet. 
.saturday...northeast winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kmkx 211949
glflm 
expires:202609220315;;834553

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 pm cdt mon sep 21 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 30.4 inches north of lake superior today 
will shift eastward into quebec tonight. the high will then 
largely remain in place through the middle of the week, while 
strengthening to around 30.7 inches by wednesday morning. gusty
east-northeast winds are expected today through wednesday. winds 
then look to diminish and turn southeasterly toward the end of 
the week, as the high pressure system slowly weakens and moves 
farther east.


lmz261-362-364-366-563-565-567-868-220315-
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-
249 pm cdt mon sep 21 2026

sheboygan wi to pentwater mi north...

.tonight...northeast winds 10 to 20 kt becoming east. waves 4 to
6 ft occasionally to 8 ft. 
.tuesday...east winds 10 to 20 kt becoming northeast 15 to 25 kt.
waves 3 to 5 ft. 
.tuesday night...east winds 15 to 25 kt diminishing to 10 to
20 kt. waves 4 to 6 ft occasionally to 8 ft. 
.wednesday...east winds 10 to 20 kt becoming northeast 15 to
25 kt. waves 2 to 4 ft. 
.wednesday night...east winds 15 to 25 kt becoming southeast
10 to 20 kt. waves 2 to 4 ft. 
.thursday...southeast winds 10 to 15 kt becoming east 10 to
20 kt. waves 2 to 4 ft subsiding to 1 to 2 ft. 
.thursday night...east winds 10 to 20 kt becoming southeast 10 to
15 kt. waves 1 to 2 ft. 
.friday...southeast winds 5 to 10 kt becoming east. waves 1 to
2 ft. 
.saturday...southeast winds 5 to 10 kt becoming south. waves 1 to
2 ft.  

$$

fzus63 kmkx 211949
glflm 
expires:202609220315;;834554

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
249 pm cdt mon sep 21 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 30.4 inches north of lake superior today 
will shift eastward into quebec tonight. the high will then 
largely remain in place through the middle of the week, while 
strengthening to around 30.7 inches by wednesday morning. gusty
east-northeast winds are expected today through wednesday. winds 
then look to diminish and turn southeasterly toward the end of 
the week, as the high pressure system slowly weakens and moves 
farther east.


lmz080-669-671-673-675-777-779-870-872-874-876-878-220315-
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-
249 pm cdt mon sep 21 2026

sheboygan wi to pentwater mi south...

.tonight...northeast winds 15 to 25 kt becoming east. waves 4 to
6 ft occasionally to 8 ft building to 4 to 7 ft occasionally to
9 ft. 
.tuesday...east winds 15 to 25 kt becoming northeast. slight
chance of showers in the afternoon. waves 4 to 7 ft occasionally
to 9 ft. 
.tuesday night...northeast winds 15 to 25 kt becoming east. waves
4 to 6 ft occasionally to 8 ft building to 5 to 8 ft occasionally
to 10 ft. 
.wednesday...east winds 15 to 25 kt becoming northeast. waves
4 to 7 ft occasionally to 9 ft. 
.wednesday night...east winds 10 to 20 kt. waves 3 to 5 ft. 
.thursday...east winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 3 to 5 ft. 
.thursday night...east winds 10 to 15 kt becoming southeast.
waves 1 to 3 ft. 
.friday...east winds 10 to 15 kt diminishing to 5 to 10 kt. waves
1 to 3 ft. 
.saturday...southeast winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft.  

$$