fzus61 kcle 200748
glfle 
expires:202604201430;;680253

open lake forecast for lake erie
national weather service cleveland oh
348 am edt mon apr 20 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 30.40 inches will remain over the lake today and
push east tonight. a warm front will cross the lake on tuesday. a
cold front will cross the lake on wednesday. high pressure 30.10
inches enters from the north for wednesday night and thursday. a
cold front will approach from the west for friday.


lez162>164-201430-
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-
348 am edt mon apr 20 2026

.today...north winds 10 knots or less. waves 2 feet or less. 
.tonight...southeast winds 10 knots or less becoming south and
increasing to 15 to 20 knots after midnight. waves 2 feet or
less. 
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. waves 1 to 3 feet. 
.tuesday night...southwest winds 5 to 15 knots becoming west. a
chance of showers. waves 2 feet or less. 
.wednesday...northwest winds 10 knots or less becoming east.
waves 1 foot or less. 
.thursday...southeast winds 5 to 15 knots becoming south. waves
2 feet or less. 
.friday...south winds 10 to 15 knots becoming southwest. a chance
of showers during the day, then showers likely friday night.
waves 1 to 2 feet. 

$$

fzus63 kdtx 201225
glfsc 
expires:202604202030;;690314

lake st clair forecast
national weather service detroit/pontiac mi
825 am edt mon apr 20 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 moves across the region today, then 
gusty south wind develops tuesday ahead of the next cold front set
to pass through tuesday night. another area of high pressure 
settles into the region on wednesday.


lcz460-202030-
lake st clair-
825 am edt mon apr 20 2026

.rest of today...northwest winds 5 to 10 knots in the late morning
and early afternoon becoming light and variable. sunny. waves 2 feet
or less.
.tonight...south winds 5 to 10 knots increasing to 10 to 15 knots in
the late evening and overnight. mostly clear. waves 2 feet or less.
.tuesday...south winds 15 to 20 knots. partly sunny. a chance of
sprinkles until late afternoon. waves 1 to 3 feet.
.tuesday night...southwest winds 10 to 15 knots becoming northwest 5
to 10 knots in the late evening and overnight. partly cloudy. waves
2 feet or less.
.wednesday...north winds 5 to 10 knots in the morning becoming light
and variable...then becoming northeast 5 to 10 knots in the evening.
mostly sunny in the morning becoming clear. waves 2 feet or less.
.thursday...southeast winds 10 to 15 knots. mostly clear. waves 2
feet or less.
.friday...southeast winds 10 to 15 knots. partly cloudy. light
showers likely. waves 1 to 3 feet.

$$

fzus63 kdtx 201225
glflh 
expires:202604202030;;690307

open lake forecast for lake huron
national weather service detroit/pontiac mi
825 am edt mon apr 20 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 moves through the region today, then 
gusty south wind develops tuesday ahead of the next cold front set
to pass through tuesday night. another area of high pressure 
settles into the region on wednesday.


lhz462>464-202030-
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-
825 am edt mon apr 20 2026

.rest of today...northwest winds 10 to 15 knots decreasing to
5 to 10 knots early in the afternoon...then veering to the
northwest 5 to 10 knots late in the afternoon. waves 3 to 5 feet
subsiding to 2 to 4 feet late in the afternoon. 
.tonight...southeast winds 5 to 10 knots becoming south 15 to
20 knots. waves 1 to 3 feet building to 3 to 5 feet after
midnight. 
.tuesday...south winds 15 to 20 knots decreasing to 10 to
15 knots early in the afternoon. sprinkles in the morning. waves
5 to 7 feet. waves occasionally around 10 feet. 
.tuesday night...south winds 5 to 10 knots backing to the north
in the late evening and overnight. waves 2 to 4 feet subsiding to
1 to 3 feet in the late evening and overnight. 
.wednesday...north winds 5 to 10 knots becoming light and
variable. waves 2 feet or less. 
.thursday...southeast winds 5 to 10 knots increasing to 10 to
15 knots . waves 1 to 3 feet building to 2 to 4 feet by midnight.
.friday...southeast winds 15 to 20 knots decreasing to 10 to
15 knots . a chance of showers . waves 3 to 5 feet. 


$$

fzus63 kmkx 200800
glflm 
expires:202604201515;;680529

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
300 am cdt mon apr 20 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 will bring light and variable
winds across the lake through early this morning. as high 
pressure moves southeastward this afternoon into tonight, expect 
gusty south winds. a few gales are possible tonight into early 
tuesday morning, especially over the northern third of the lake as
low pressure around 29.5 inches progresses into the hudson bay. a
cold front from this low will progress southward through the lake
tuesday afternoon and evening, shifting winds to northeasterly. 
high pressure around 30.4 inches builds into ontario on wednesday,
bringing light and variable winds. winds will then become 
southeast and increase thursday into friday as strong low pressure
around 29.2 inches develops in the northern plains.


lmz261-362-364-366-563-565-567-868-201515-
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-
300 am cdt mon apr 20 2026

sheboygan wi to pentwater mi north...

.today...southwest winds 5 to 10 kt increasing to 10 to 15 kt
late this morning, then increasing to 10 to 20 kt early this
afternoon becoming south 15 to 25 kt late. waves 1 to 3 ft
building to 3 to 5 ft. 
.tonight...south winds to 30 kt. waves 4 to 7 ft occasionally to
9 ft building to 5 to 8 ft occasionally to 10 ft. 
.tuesday...southwest winds to 30 kt diminishing to 10 to 15 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 3 to 5 ft. 
.tuesday night...northeast winds 10 to 15 kt. waves 2 to 4 ft
subsiding to 1 to 3 ft. 
.wednesday...northeast winds 5 to 10 kt. waves 1 to 2 ft. 
.wednesday night...southeast winds 5 to 10 kt increasing to 10 to
20 kt. waves 1 ft or less building to 1 to 3 ft. 
.thursday...south winds 15 to 25 kt. waves 3 to 5 ft building to
4 to 7 ft occasionally to 9 ft. 
.friday...southeast winds to 30 kt becoming south 15 to 25 kt.
chance of rain showers. waves 7 to 10 ft occasionally to 13 ft.  

$$

fzus63 kmkx 200800
glflm 
expires:202604201515;;680530

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
300 am cdt mon apr 20 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 will bring light and variable
winds across the lake through early this morning. as high 
pressure moves southeastward this afternoon into tonight, expect 
gusty south winds. a few gales are possible tonight into early 
tuesday morning, especially over the northern third of the lake as
low pressure around 29.5 inches progresses into the hudson bay. a
cold front from this low will progress southward through the lake
tuesday afternoon and evening, shifting winds to northeasterly. 
high pressure around 30.4 inches builds into ontario on wednesday,
bringing light and variable winds. winds will then become 
southeast and increase thursday into friday as strong low pressure
around 29.2 inches develops in the northern plains.


lmz080-669-671-673-675-777-779-870-872-874-876-878-201515-
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-
300 am cdt mon apr 20 2026

sheboygan wi to pentwater mi south...

.today...southeast winds 5 to 10 kt increasing to 10 to 15 kt
late this morning, then becoming south 10 to 20 kt early this
afternoon becoming southeast 15 to 25 kt late. waves 1 to 3 ft
building to 3 to 5 ft. 
.tonight...southeast winds 15 to 25 kt becoming south. waves 4 to
6 ft occasionally to 8 ft. 
.tuesday...south winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft. 
.tuesday night...south winds 5 to 10 kt backing to north. waves
2 to 4 ft subsiding to 1 to 2 ft. 
.wednesday...northeast winds 5 to 10 kt becoming north. waves
1 to 2 ft. 
.wednesday night...east winds 10 to 15 kt becoming south 10 to
20 kt. waves 1 ft or less building to 1 to 3 ft. 
.thursday...south winds 10 to 20 kt increasing to 15 to 25 kt.
waves 3 to 5 ft building to 4 to 7 ft occasionally to 9 ft. 
.friday...south winds to 30 kt becoming southwest 10 to 20 kt.
showers likely. waves 6 to 9 ft occasionally to 12 ft.  

$$