fzus63 kdtx 310136
glflh 
expires:202608310945;;638391

open lake forecast for lake huron
national weather service detroit/pontiac mi
936 pm edt sun aug 30 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...a warm front develops over the great lakes tonight
into monday, bringing an unsettled period with showers and
storms. low pressure forming over the dakotas slowly tracks
across northern ontario through the midweek. its cold front is
likely to stall across the area on wednesday.


lhz361-310945-
lake huron from 5nm east of mackinac bridge to presque isle lt
beyond 5 nm off shore-
936 pm edt sun aug 30 2026

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


$$

fzus63 kdtx 310136
glflh 
expires:202608310945;;638392

open lake forecast for lake huron
national weather service detroit/pontiac mi
936 pm edt sun aug 30 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...a warm front develops over the great lakes tonight
into monday, bringing an unsettled period with showers and
storms. low pressure forming over the dakotas slowly tracks
across northern ontario through the midweek. its cold front is
likely to stall across the area on wednesday.


lhz362-363-310945-
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-
936 pm edt sun aug 30 2026

.rest of tonight...east winds 5 to 10 knots. a chance of showers
this evening...then a chance of showers and thunderstorms after
midnight. waves 2 feet or less. 
.monday...southeast winds 5 to 10 knots increasing to 10 to
15 knots late in the afternoon. a chance of showers and
thunderstorms in the morning...then a chance of showers in the
afternoon. waves 1 to 3 feet. 
.monday night...southeast winds 10 to 15 knots decreasing to 5 to
10 knots by midnight...then veering to the southwest after
midnight. waves 1 to 3 feet. 
.tuesday...west winds 5 to 10 knots early in the morning becoming
light and variable. waves 2 feet or less. 
.tuesday night...southeast winds 5 to 10 knots veering to the
south in the late evening and overnight. waves 2 feet or less. 
.wednesday...southwest winds 5 to 10 knots. a chance of showers.
waves 2 feet or less. 
.thursday...north winds 5 to 10 knots early in the morning
becoming light and variable. waves 2 feet or less. 
.friday...light and variable winds becoming north 5 to 10 knots
in the late morning and early afternoon...then becoming light and
variable early in the evening becoming north 5 to 10 knots by
midnight. waves 2 feet or less. 


$$

fzus63 kdtx 310136
glflh 
expires:202608310945;;638393

open lake forecast for lake huron
national weather service detroit/pontiac mi
936 pm edt sun aug 30 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...a warm front develops over the great lakes tonight
into monday, bringing an unsettled period with showers and
storms. low pressure forming over the dakotas slowly tracks
across northern ontario through the midweek. its cold front is
likely to stall across the area on wednesday.


lhz462>464-310945-
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-
936 pm edt sun aug 30 2026

.rest of tonight...southeast winds 10 to 15 knots becoming south
5 to 10 knots early in the morning. showers likely and a chance
of thunderstorms. a chance of waterspouts after midnight. waves
1 to 3 feet. 
.monday...south winds 5 to 10 knots increasing to 10 to 15 knots
late in the afternoon. a chance of waterspouts in the morning. a
chance of showers. waves 1 to 3 feet. 
.monday night...south winds 10 to 15 knots becoming southwest
5 to 10 knots after midnight. waves 1 to 3 feet. 
.tuesday...southwest winds 5 to 10 knots. waves 2 feet or less. 
.tuesday night...south winds 5 to 10 knots. a chance of showers.
waves 2 feet or less. 
.wednesday...southwest winds 5 to 10 knots veering to the
northeast late in the afternoon. a chance of showers. a chance of
thunderstorms late in the morning. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots becoming light and
variable. waves 2 feet or less. 
.friday...north winds 5 to 10 knots. waves 2 feet or less. 


$$

fzus63 kmkx 310054
glflm 
expires:202608310915;;636789

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
754 pm cdt sun aug 30 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 warm front is draped over central lake michigan this evening, 
resulting in generally southerly winds across the southern half of 
the waters with northeasterly breezes further north. the boundary 
will attempt to work northward from the remainder of the overnight 
through monday, bringing a breezy south-southwest wind shift in its 
wake. areas remaining north of the front will continue to see east-
northeast winds. similar to today, south-southwest winds will become 
breezy once again on monday afternoon, when 25-30 knot gusts are 
anticipated over at least the southern two-thirds of the waters. 
gales are not anticipated. periods of showers and storms continue 
through the overnight hours tonight, with severe weather not 
anticipated.

29.5 inch low pressure will shift from the canadian great plains 
into ontario monday night through tuesday, ultimately reaching the
southern shores of the hudson bay by daybreak wednesday. the 
advancing low will pull a slow-moving cold front over lake 
michigan in the process, with north-northeast winds establishing 
in the wake of the boundary. whether the front clears entirely 
south of the waters or stalls out somewhere over the lake remains 
uncertain. with the front in the vicinity, shower and storm 
chances thus continue monday night through at least mid-week. a 
few stronger storms with gusty winds and hail are possible during 
this time frame. if the front remains close to stationary through 
the first half of the week, it will ultimately clear south of lake
michigan by thursday, bringing northeast winds for the end of the
week.


lmz261-362-364-366-563-565-567-868-310915-
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-
754 pm cdt sun aug 30 2026

sheboygan wi to pentwater mi north...

.rest of tonight...southeast winds 10 to 20 kt. slight chance of
showers and thunderstorms this evening, then chance of showers
and thunderstorms overnight. waves 3 to 5 ft subsiding to 2 to
4 ft. 
.monday...south winds 15 to 25 kt increasing to 30 kt. chance of
showers and thunderstorms in the morning. waves 3 to 5 ft
building to 4 to 6 ft occasionally to 8 ft. 
.monday night...south winds 15 to 25 kt becoming southwest 10 to
20 kt late in the evening, then diminishing to 10 to 15 kt after
midnight becoming west late. waves 4 to 6 ft occasionally to 8 ft
subsiding to 2 to 4 ft. 
.tuesday...south winds 10 to 15 kt. waves 1 to 3 ft. 
.tuesday night...southwest winds 10 to 15 kt becoming west 5 to
10 kt. waves 1 to 2 ft. 
.wednesday...west winds 10 to 15 kt veering to north. waves 1 to
2 ft. 
.wednesday night...northeast winds 10 to 15 kt diminishing to
5 to 10 kt. chance of showers. waves 1 ft or less. 
.thursday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 ft or less. 
.friday...east winds 10 to 15 kt becoming northeast 10 to 20 kt.
waves 1 to 2 ft.  

$$

fzus63 kmkx 310054
glflm 
expires:202608310915;;636790

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
754 pm cdt sun aug 30 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 warm front is draped over central lake michigan this evening, 
resulting in generally southerly winds across the southern half of 
the waters with northeasterly breezes further north. the boundary 
will attempt to work northward from the remainder of the overnight 
through monday, bringing a breezy south-southwest wind shift in its 
wake. areas remaining north of the front will continue to see east-
northeast winds. similar to today, south-southwest winds will become 
breezy once again on monday afternoon, when 25-30 knot gusts are 
anticipated over at least the southern two-thirds of the waters. 
gales are not anticipated. periods of showers and storms continue 
through the overnight hours tonight, with severe weather not 
anticipated.

29.5 inch low pressure will shift from the canadian great plains 
into ontario monday night through tuesday, ultimately reaching the
southern shores of the hudson bay by daybreak wednesday. the 
advancing low will pull a slow-moving cold front over lake 
michigan in the process, with north-northeast winds establishing 
in the wake of the boundary. whether the front clears entirely 
south of the waters or stalls out somewhere over the lake remains 
uncertain. with the front in the vicinity, shower and storm 
chances thus continue monday night through at least mid-week. a 
few stronger storms with gusty winds and hail are possible during 
this time frame. if the front remains close to stationary through 
the first half of the week, it will ultimately clear south of lake
michigan by thursday, bringing northeast winds for the end of the
week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-310915-
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-
754 pm cdt sun aug 30 2026

sheboygan wi to pentwater mi south...

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

$$