fzus61 kcle 191947
glfle 
expires:202608200215;;008460

open lake forecast for lake erie
national weather service cleveland oh
347 pm edt wed aug 19 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...
a cold front will settle south of lake erie this evening as 
high pressure 30.10 inches builds into the region through friday.
low pressure 29.90 inches moves into the great lakes region on 
saturday with a cold front crossing late saturday night into 
sunday.


lez162>164-200215-
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-
347 pm edt wed aug 19 2026

.tonight...southeast winds 10 knots or less becoming northeast. a
slight chance of showers and thunderstorms early, then a chance
of showers and thunderstorms late this evening. a chance of
showers after midnight. waves 1 foot or less. 
.thursday...northeast winds 10 to 15 knots. a slight chance of
showers in the morning. waves 1 to 3 feet. 
.thursday night...east winds 5 to 10 knots becoming southeast.
waves 1 to 3 feet subsiding to 1 foot or less. 
.friday...southeast winds 10 knots or less becoming east. waves
1 foot or less. 
.friday night...east winds 5 to 10 knots becoming southwest.
waves 1 foot or less. 
.saturday...southwest winds 5 to 15 knots becoming northwest.
showers likely with a chance of thunderstorms during the day.
waves 2 feet or less. 
.sunday...northwest winds 10 to 15 knots. waves 1 to 2 feet. 
.monday...northwest winds 5 to 10 knots becoming southwest. waves
2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 191950
glfsc 
expires:202608200400;;008568

lake st clair forecast
national weather service detroit/pontiac mi
350 pm edt wed aug 19 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...high pressure, 30.00 inches, builds into the great
lakes through the end of the work week maintaining light winds. a
cold front then sweeps across the area friday into saturday,
bringing the next opportunity for showers and thunderstorms.


lcz460-200400-
lake st clair-
350 pm edt wed aug 19 2026

.tonight...northeast winds 5 to 10 knots. partly cloudy. waves 2
feet or less.
.thursday...northeast winds 5 to 10 knots. mostly sunny. waves 2
feet or less.
.thursday night...northeast winds 10 to 15 knots becoming east 5 to
10 knots in the late evening and overnight. clear. waves 2 feet or
less.
.friday...southeast winds 5 to 10 knots. mostly sunny. waves 2 feet
or less.
.friday night...southeast winds 5 to 10 knots. mostly clear. waves 2
feet or less.
.saturday...southwest winds 5 to 10 knots veering to the northwest
in the evening. mostly sunny becoming partly cloudy. a chance of
light showers. a chance of thunderstorms in the afternoon and
evening. waves 2 feet or less.
.sunday...north winds 10 to 15 knots. mostly clear. waves 2 feet or
less.
.monday...northeast winds 10 to 15 knots. mostly clear. waves 2 feet
or less.

$$

fzus63 kdtx 191949
glflh 
expires:202608200400;;008562

open lake forecast for lake huron
national weather service detroit/pontiac mi
349 pm edt wed aug 19 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, 30.00 inches, builds into the great
lakes through the end of the work week maintaining light winds. a
cold front then sweeps across the area friday into saturday,
bringing the next opportunity for showers and thunderstorms.


lhz462>464-200400-
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-
349 pm edt wed aug 19 2026

.tonight...light and variable winds. waves 2 feet or less. 
.thursday...light and variable winds becoming north 5 to 10 knots
late in the afternoon. waves 2 feet or less. 
.thursday night...northeast winds 5 to 10 knots veering to the
east after midnight. waves 2 feet or less. 
.friday...southeast winds 5 to 10 knots. waves 2 feet or less. 
.friday night...southeast winds 5 to 10 knots increasing to 10 to
15 knots in the late evening and overnight. waves 1 to 3 feet. 
.saturday...south winds 5 to 10 knots veering to the west late in
the afternoon...then becoming northwest 10 to 15 knots late in
the evening. showers. a chance of thunderstorms. a chance of
showers late in the afternoon. waves 2 feet or less building to
3 to 5 feet late in the evening. 
.sunday...northwest winds 15 to 20 knots decreasing to 10 to
15 knots by midnight. waves 4 to 6 feet. 
.monday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots early in the evening...then veering to the north by
midnight. waves 3 to 5 feet subsiding to 1 to 3 feet . waves
occasionally around 8 feet. 


$$

fzus63 kmkx 191940
glflm 
expires:202608200315;;008234

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
240 pm cdt wed aug 19 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...

light to modest winds are expected tonight into thursday, as high
pressure around 30.0 inches tracks through the western great 
lakes region. as the high exits to the southeast later thursday 
into thursday night, south to southwest winds will develop. gusty 
southwest winds, as well as shower and thunderstorm chances, 
return friday into friday night, as low pressure around 29.8 
inches moves across the region and drags a cold front through. 
gusty winds will shift to the northwest later friday night into 
saturday after the front moves through. high pressure around 30.2 
inches moving toward the region later in the weekend may help 
maintain gusty north winds. 


lmz261-362-364-366-563-565-567-868-200315-
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-
240 pm cdt wed aug 19 2026

sheboygan wi to pentwater mi north...

.tonight...east winds 10 to 15 kt becoming southeast. waves 1 to
2 ft subsiding to nearly calm. 
.thursday...south winds 5 to 10 kt becoming southwest 10 to 15 kt
early in the afternoon, then becoming south 10 to 20 kt late.
waves 1 ft or less building to 1 to 3 ft. 
.thursday night...south winds 10 to 20 kt. chance of showers
overnight. waves 1 to 3 ft. 
.friday...south winds 15 to 25 kt. chance of showers. waves 3 to
5 ft. 
.friday night...southwest winds 10 to 20 kt veering to northwest
10 to 15 kt. chance of showers. waves 3 to 5 ft subsiding to 2 to
4 ft. 
.saturday...northwest winds 10 to 20 kt increasing to 30 kt in
the afternoon. waves 1 to 3 ft. 
.saturday night...north winds to 30 kt diminishing to 15 to
25 kt. waves 2 to 4 ft. 
.sunday...northwest winds to 30 kt becoming north gales to 35 kt.
waves 3 to 5 ft. 
.monday...north winds 10 to 20 kt becoming northwest. waves 1 to
2 ft.  

$$

fzus63 kmkx 191940
glflm 
expires:202608200315;;008235

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
240 pm cdt wed aug 19 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...

light to modest winds are expected tonight into thursday, as high
pressure around 30.0 inches tracks through the western great 
lakes region. as the high exits to the southeast later thursday 
into thursday night, south to southwest winds will develop. gusty 
southwest winds, as well as shower and thunderstorm chances, 
return friday into friday night, as low pressure around 29.8 
inches moves across the region and drags a cold front through. 
gusty winds will shift to the northwest later friday night into 
saturday after the front moves through. high pressure around 30.2 
inches moving toward the region later in the weekend may help 
maintain gusty north winds. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-200315-
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-
240 pm cdt wed aug 19 2026

sheboygan wi to pentwater mi south...

.tonight...northeast winds 10 to 15 kt diminishing to 5 to 10 kt.
waves 1 to 3 ft. 
.thursday...northeast winds 5 to 10 kt becoming east late in the
morning, then becoming northeast early in the afternoon becoming
southwest 10 to 20 kt late. waves 1 to 2 ft. 
.thursday night...southeast winds 10 to 20 kt becoming south.
waves 1 to 3 ft. 
.friday...south winds 10 to 20 kt increasing to 15 to 25 kt.
chance of showers. waves 3 to 5 ft. 
.friday night...southwest winds 10 to 20 kt becoming west 10 to
15 kt. chance of showers. waves 2 to 4 ft subsiding to 1 to 3 ft.
.saturday...northwest winds 10 to 20 kt increasing to 15 to
25 kt. waves 2 to 4 ft. 
.saturday night...north winds 10 to 20 kt. waves 1 to 3 ft
building to 3 to 5 ft. 
.sunday...north winds 15 to 25 kt increasing to 30 kt. waves 4 to
6 ft occasionally to 8 ft. 
.monday...northeast winds 10 to 15 kt. waves 1 to 2 ft.  

$$