fzus61 kcle 180736
glfle 
expires:202604181415;;569102

open lake forecast for lake erie
national weather service cleveland oh
336 am edt sat apr 18 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...
low pressure 29.40 inches will drag a cold front east through the
great lakes and ohio valley this evening. a trough averaging 
29.90 inches builds across the lake on sunday before high pressure
30.40 inches moves overhead sunday night into monday.


lez162>164-181415-
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-
336 am edt sat apr 18 2026

.today...south winds 15 to 20 knots becoming west. showers with a
chance of thunderstorms. waves 1 to 3 feet building to 2 to
4 feet. 
.tonight...west winds 15 to 20 knots. a slight chance of showers
early. waves 2 to 4 feet. 
.sunday...west winds 15 to 20 knots. a chance of showers in the
afternoon. waves 2 to 4 feet. 
.sunday night...northwest winds 15 to 20 knots becoming north
10 to 15 knots. a chance of rain showers in the evening. waves
2 to 4 feet subsiding to 1 to 3 feet. 
.monday...north winds 5 to 15 knots becoming south 15 to
20 knots. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming west 10 to
15 knots. waves 1 to 3 feet. 
.wednesday...north winds 10 to 15 knots becoming east 10 knots or
less. waves 2 feet or less. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 180726
glfsc 
expires:202604181530;;568711

lake st clair forecast
national weather service detroit/pontiac mi
326 am edt sat apr 18 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...low pressure, 29.30 inches, lifting into northern
ontario drags a respectable cold front through the central great
lakes this morning supporting another round of showers and a few
thunderstorms. colder air filters into the region the rest of the
weekend maintaining moderate to strong northwesterly winds.


lcz460-181530-
lake st clair-
326 am edt sat apr 18 2026

.today...south winds 15 to 20 knots veering to the west in the
afternoon. showers in the morning...then light showers early in the
afternoon. waves 1 to 3 feet.
.tonight...west winds 15 to 20 knots diminishing to 10 to 15 knots
after midnight. partly cloudy. waves 2 feet or less.
.sunday...west winds 10 to 15 knots increasing to 15 to 20 knots
early in the afternoon. partly sunny. a chance of light showers
early in the afternoon. waves 2 feet or less.
.sunday night...northwest winds 15 to 20 knots becoming north 10 to
15 knots in the late evening and overnight. mostly clear. a chance
of light showers early in the evening. waves 2 feet or less.
.monday...northwest winds 10 to 15 knots diminishing to 5 to 10
knots in the afternoon...then veering to the southeast in the
evening. mostly clear. waves 2 feet or less.
.tuesday...west winds 15 to 20 knots. partly cloudy. waves 1 to 3
feet.
.wednesday...northeast winds 10 to 15 knots. mostly clear. waves 2
feet or less.

$$

fzus63 kdtx 180726
glflh 
expires:202604181530;;568708

open lake forecast for lake huron
national weather service detroit/pontiac mi
326 am edt sat apr 18 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...low pressure, 29.30 inches, lifting into northern 
ontario drags a respectable cold front through the central great 
lakes this morning supporting another round of showers and 
a few thunderstorms. colder air filters into the region the rest 
of the weekend maintaining moderate to strong northwesterly winds.


lhz462>464-181530-
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-
326 am edt sat apr 18 2026

.today...south winds 20 to 25 knots with gusts to around 30 knots
decreasing to 15 to 20 knots with gusts to around 30 knots late
in the morning...then veering to the southwest early in the
afternoon becoming west 10 to 15 knots late in the afternoon. a
chance of showers. waves 5 to 7 feet. waves occasionally around
10 feet. 
.tonight...west winds 10 to 15 knots. waves 2 to 4 feet. 
.sunday...west winds 10 to 15 knots. a chance of snow showers in
the afternoon. waves 2 to 4 feet. 
.sunday night...northwest winds 15 to 20 knots. waves 6 to
9 feet. waves occasionally around 12 feet. 
.monday...northwest winds 10 to 15 knots decreasing to 5 to
10 knots late in the morning...then veering to the northeast late
in the afternoon becoming south 15 to 20 knots late in the
evening. waves 4 to 6 feet subsiding to 1 to 3 feet late in the
afternoon...then building to 4 to 6 feet late in the evening.
waves occasionally around 8 feet. 
.tuesday...south winds 20 to 25 knots with gusts to around
30 knots decreasing to 15 to 20 knots in the late morning and
early afternoon...then decreasing to 10 to 15 knots early in the
evening backing to the south 10 to 15 knots by midnight. waves
6 to 9 feet subsiding to 3 to 5 feet . waves occasionally around
12 feet. 
.wednesday...north winds 10 to 15 knots decreasing to 5 to
10 knots. waves 2 to 4 feet subsiding to 1 to 3 feet . 


$$

fzus63 kmkx 180813
glflm 
expires:202604181515;;571003

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
313 am cdt sat apr 18 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...

breezy northwest winds continue to build in behind a cold front,
overspreading the lake and achieving 20 to 30 kt gusts through
today. low pressure continues its northeastward track across 
ontario canada and james bay today, with high pressure systems 
over the southern plains and saskatchewan/manitoba canada 
maintaining a tight pressure gradient and breezy west to northwest
winds. high pressure builds its way into the midwestern us states
through sunday / monday, with continued northwest wind flow 
sunday then light and variable winds into monday morning as the 
high makes its closest approach to lake michigan. as the high 
exits east, expecting breezy southerly winds monday afternoon and 
night. 


lmz261-362-364-366-563-565-567-868-181515-
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-
313 am cdt sat apr 18 2026

sheboygan wi to pentwater mi north...

...dense fog advisory in effect until 4 am cdt early this
morning...

.today...northwest winds to 30 kt becoming west. waves 4 to 6 ft
occasionally to 8 ft. 
.tonight...west winds to 30 kt diminishing to 15 to 25 kt. waves
4 to 6 ft occasionally to 8 ft. 
.sunday...west winds 15 to 25 kt becoming north. waves 2 to 4 ft.
.sunday night...north winds 15 to 25 kt diminishing to 10 to
20 kt. waves 2 to 4 ft. 
.monday...west winds 10 to 15 kt becoming south 10 to 20 kt.
waves 1 to 2 ft building to 2 to 4 ft. 
.monday night...south winds to 30 kt. waves 5 to 8 ft
occasionally to 10 ft. 
.tuesday...southwest winds to 30 kt diminishing to 10 to 20 kt.
waves 5 to 8 ft occasionally to 10 ft subsiding to 4 to 6 ft
occasionally to 8 ft. 
.wednesday...northeast winds 10 to 15 kt diminishing to 5 to
10 kt. waves 1 to 2 ft.  

$$

fzus63 kmkx 180813
glflm 
expires:202604181515;;571004

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
313 am cdt sat apr 18 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...

breezy northwest winds continue to build in behind a cold front,
overspreading the lake and achieving 20 to 30 kt gusts through
today. low pressure continues its northeastward track across 
ontario canada and james bay today, with high pressure systems 
over the southern plains and saskatchewan/manitoba canada 
maintaining a tight pressure gradient and breezy west to northwest
winds. high pressure builds its way into the midwestern us states
through sunday / monday, with continued northwest wind flow 
sunday then light and variable winds into monday morning as the 
high makes its closest approach to lake michigan. as the high 
exits east, expecting breezy southerly winds monday afternoon and 
night. 


lmz080-669-671-673-675-777-779-870-872-874-876-878-181515-
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-
313 am cdt sat apr 18 2026

sheboygan wi to pentwater mi south...

...dense fog advisory in effect until 4 am cdt early this
morning...

.today...west winds to 30 kt diminishing to 15 to 25 kt. slight
chance of rain showers this morning. waves 4 to 6 ft occasionally
to 8 ft. 
.tonight...west winds 15 to 25 kt diminishing to 10 to 20 kt.
waves 4 to 6 ft occasionally to 8 ft. 
.sunday...west winds 10 to 20 kt becoming northwest. waves 3 to
5 ft. 
.sunday night...north winds 10 to 20 kt becoming northeast 10 to
15 kt. waves 2 to 4 ft. 
.monday...east winds 5 to 10 kt becoming southeast 10 to 20 kt in
the afternoon. waves 1 to 2 ft building to 2 to 4 ft. 
.monday night...southeast winds 15 to 25 kt becoming south to
30 kt. waves 4 to 7 ft occasionally to 9 ft. 
.tuesday...south winds to 30 kt diminishing to 10 to 20 kt. waves
4 to 7 ft occasionally to 9 ft. 
.wednesday...northeast winds 10 to 15 kt diminishing to 5 to
10 kt. waves 2 to 4 ft.  

$$