fzus61 kcle 170744
glfle 
expires:202608171415;;335999

open lake forecast for lake erie
national weather service cleveland oh
344 am edt mon aug 17 2026

for waters beyond five nautical miles of shore on lake erie

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 30.00 inches will build from the north today and 
move south of the lake on tuesday. a cold front will cross the 
lake on wednesday. high pressure 30.20 inches will build back over
the lake on thursday and friday.


lez162>164-171415-
detroit river lt. to maumee bay oh to reno beach oh beyond 5nm
offshoreline to us-canadian border-
reno beach to the islands oh beyond 5nm off shoreline to us-
canadian border-
the islands to vermilion oh beyond 5 nm off shoreline to us-
canadian border-
344 am edt mon aug 17 2026

.today...north winds 5 to 15 knots becoming northwest less than
10 knots. a slight chance of showers this morning. waves 2 feet
or less. 
.tonight...north winds 10 knots or less becoming northwest. waves
1 foot or less. 
.tuesday...west winds 5 to 10 knots becoming southwest. waves
1 foot or less. 
.tuesday night...southwest winds 5 to 15 knots. a chance of
showers overnight. waves 1 to 2 feet. 
.wednesday...west winds 5 to 15 knots becoming northeast. a
chance of showers during the day. waves 2 feet or less. 
.thursday...northeast winds 5 to 10 knots becoming east. waves
1 foot or less. 
.friday...east winds 10 knots or less becoming south. waves
1 foot or less. 

$$

fzus63 kdtx 170738
glfsc 
expires:202608171545;;335824

lake st clair forecast
national weather service detroit/pontiac mi
338 am edt mon aug 17 2026

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...an area of low pressure, 29.80 inches, is tracking
east across ontario this afternoon and will pull a cold front
across the central great lakes region late this evening. this
cold front brings in a 6- 8 hour bout of 20-25 knot northwest
winds tonight into early monday morning and chances for
thunderstorms this afternoon and evening. high pressure, 30.20
inches, builds in behind the front for monday and most of
tuesday.


lcz460-171545-
lake st clair-
338 am edt mon aug 17 2026

.today...north winds 10 to 15 knots diminishing to 5 to 10 knots in
the late morning and afternoon. partly sunny. waves 2 feet or less.
.tonight...northeast winds 5 to 10 knots this evening becoming light
and variable. mostly clear. waves 2 feet or less.
.tuesday...light and variable winds becoming southwest 5 to 10 knots
in the late morning and afternoon. mostly sunny. waves 2 feet or
less.
.tuesday night...southwest winds 10 to 15 knots. partly cloudy. a
chance of light showers ...then light showers likely after midnight.
waves 2 feet or less.
.wednesday...northwest winds 10 to 15 knots becoming northeast 5 to
10 knots in the afternoon and evening. partly cloudy. light showers
likely in the morning...then a chance of light showers in the
afternoon. waves 2 feet or less.
.thursday...east winds 5 to 10 knots. mostly clear. waves 2 feet or
less.
.friday...south winds 5 to 10 knots. clear. waves 2 feet or less.

$$

fzus63 kdtx 170738
glflh 
expires:202608171545;;335822

open lake forecast for lake huron
national weather service detroit/pontiac mi
338 am edt mon aug 17 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...an area of low pressure, 29.80 inches, is tracking
east across ontario this afternoon and will pull a cold front
across the central great lakes region late this evening. this
cold front brings in a 6- 8 hour bout of 20-25 knot northwest
winds tonight into early monday morning and chances for
thunderstorms this afternoon and evening. high pressure, 30.20
inches, builds in behind the front for monday and most of
tuesday.


lhz462>464-171545-
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-
338 am edt mon aug 17 2026

.today...north winds 10 to 15 knots decreasing to 5 to 10 knots
late in the afternoon. waves 3 to 5 feet subsiding to 2 to 4 feet
late in the afternoon. 
.tonight...north winds 5 to 10 knots early in the evening
becoming light and variable. waves 2 feet or less. 
.tuesday...southwest winds 5 to 10 knots. waves 2 feet or less. 
.tuesday night...south winds 5 to 10 knots becoming west 10 to
15 knots in the late evening and overnight. showers and a chance
of thunderstorms in the evening...then showers likely after
midnight. waves 1 to 3 feet. 
.wednesday...northwest winds 10 to 15 knots becoming north 5 to
10 knots late in the morning...then veering to the northeast late
in the evening. waves 2 feet or less. 
.thursday...north winds 5 to 10 knots veering to the northeast by
midnight. waves 2 feet or less. 
.friday...southeast winds 5 to 10 knots becoming south 10 to
15 knots by midnight. waves 2 feet or less. 


$$

fzus63 kmkx 170158
glflm 
expires:202608170915;;321453

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
858 pm cdt sun aug 16 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...

an area of 30.1 inch high pressure will build in from the 
northern great plains late tonight into monday, bringing light and
variable winds to the waters through the majority of monday and 
monday night. a slow-moving cold front will approach from the 
northern great plains tuesday into wednesday, bringing increasing 
southwest winds and chances for thunderstorms. tuesday evening and
night appears most favored for storm potential, with storm 
chances expected to move well south of the waters on wednesday. 
30.0 inch high pressure will move through the western great lakes 
wednesday through thursday, with light and variable winds 
prevailing across the waters. the next thunderstorm chances arrive
friday afternoon and evening, when the next cold front is 
expected to move across lake michigan.


lmz261-362-364-366-563-565-567-868-170915-
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-
858 pm cdt sun aug 16 2026

sheboygan wi to pentwater mi north...

.rest of tonight...north winds 15 to 25 kt diminishing to 10 to
15 kt. waves 2 to 4 ft subsiding to 1 to 3 ft. 
.monday...northwest winds 10 to 15 kt backing to southwest 10 to
20 kt. waves 1 to 2 ft. 
.monday night...southwest winds 10 to 20 kt. waves 1 to 3 ft. 
.tuesday...west winds 15 to 25 kt. chance of showers in the
afternoon. waves 2 to 4 ft. 
.tuesday night...north winds 10 to 20 kt. chance of showers in
the evening. waves 2 to 4 ft. 
.wednesday...northwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 2 ft. 
.wednesday night...northeast winds 10 to 20 kt diminishing to
5 to 10 kt. waves 1 to 2 ft. 
.thursday...east winds 5 to 10 kt veering to west 10 to 20 kt.
waves 1 ft or less. 
.friday...southwest winds 15 to 25 kt increasing to 30 kt. waves
2 to 4 ft.  

$$

fzus63 kmkx 170158
glflm 
expires:202608170915;;321454

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
858 pm cdt sun aug 16 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...

an area of 30.1 inch high pressure will build in from the 
northern great plains late tonight into monday, bringing light and
variable winds to the waters through the majority of monday and 
monday night. a slow-moving cold front will approach from the 
northern great plains tuesday into wednesday, bringing increasing 
southwest winds and chances for thunderstorms. tuesday evening and
night appears most favored for storm potential, with storm 
chances expected to move well south of the waters on wednesday. 
30.0 inch high pressure will move through the western great lakes 
wednesday through thursday, with light and variable winds 
prevailing across the waters. the next thunderstorm chances arrive
friday afternoon and evening, when the next cold front is 
expected to move across lake michigan.


lmz080-669-671-673-675-777-779-870-872-874-876-878-170915-
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-
858 pm cdt sun aug 16 2026

sheboygan wi to pentwater mi south...

.rest of tonight...northwest winds 10 to 20 kt becoming
northeast. waves 2 to 4 ft. 
.monday...north winds 10 to 20 kt diminishing to 10 to 15 kt.
waves 2 to 4 ft subsiding to 1 to 2 ft. 
.monday night...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.tuesday...southwest winds 10 to 20 kt. waves 2 to 4 ft. 
.tuesday night...west winds 10 to 20 kt veering to north. chance
of showers. waves 2 to 4 ft. 
.wednesday...northeast winds 10 to 15 kt becoming north 10 to
20 kt. chance of showers in the morning. waves 1 to 3 ft. 
.wednesday night...northeast winds 10 to 15 kt diminishing to
5 to 10 kt. waves 1 to 2 ft. 
.thursday...northeast winds 5 to 10 kt increasing to 10 to 15 kt.
waves 1 to 2 ft. 
.friday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 2 to 4 ft.  

$$