fzus61 kcle 151348
glfle 
expires:202608152015;;233761

open lake forecast for lake erie
national weather service cleveland oh
948 am edt sat aug 15 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 warm front will lift across the region tonight into sunday as 
low pressure 29.90 inches moves east across the upper great lakes.
this low will push a cold front across lake erie as it moves east
into southern quebec. high pressure 30.10 inches will build across
the region monday and tuesday before the next cold front 
approaches from the west on wednesday.


lez162>164-152015-
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-
948 am edt sat aug 15 2026

.this afternoon...southeast winds 5 to 10 knots becoming east. a
slight chance of showers. waves 1 foot or less. 
.tonight...east winds around 10 knots becoming south. showers
likely with a chance of thunderstorms in the evening, then a
chance of showers with a slight chance of thunderstorms after
midnight. waves 2 feet or less. 
.sunday...west winds 10 to 15 knots. a chance of showers in the
morning, then showers likely with a chance of thunderstorms in
the afternoon. waves 1 to 2 feet. 
.sunday night...west winds 10 to 15 knots becoming northwest. a
chance of showers and thunderstorms in the evening. waves 1 to
2 feet. 
.monday...north winds 5 to 15 knots becoming southwest less than
10 knots. waves 2 feet or less. 
.tuesday...west winds 5 to 15 knots becoming southwest. waves
1 foot or less. 
.wednesday...southwest winds 10 to 15 knots becoming north. a
chance of showers and thunderstorms during the day, then a chance
of showers wednesday night. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

$$

fzus63 kdtx 151344
glfsc 
expires:202608152145;;233624

lake st clair forecast
national weather service detroit/pontiac mi
944 am edt sat aug 15 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, 30.20 inches, currently centered over
northern lake huron will hold most of the day before sliding
southeast through the eastern lakes. the next low pressure system
will pass through the region tonight and sunday bringing the next
thunderstorm chances.


lcz460-152145-
lake st clair-
944 am edt sat aug 15 2026

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

$$

fzus63 kdtx 151344
glflh 
expires:202608152145;;233622

open lake forecast for lake huron
national weather service detroit/pontiac mi
944 am edt sat aug 15 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, 30.20 inches, currently centered over
northern lake huron will hold most of the day before sliding
southeast through the eastern lakes. the next low pressure system
will pass through the region tonight and sunday bringing the next
thunderstorm chances.


lhz462>464-152145-
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-
944 am edt sat aug 15 2026

.rest of today...east winds 5 to 10 knots late in the morning
becoming light and variable...then becoming east 5 to 10 knots
late in the afternoon. waves 2 feet or less. 
.tonight...east winds 5 to 10 knots becoming southeast 10 to
15 knots late in the evening...then increasing to 15 to 20 knots
after midnight decreasing to 10 to 15 knots early in the morning.
waves 1 to 3 feet building to 2 to 4 feet after midnight. 
.sunday...south winds 10 to 15 knots decreasing to 5 to 10 knots
in the late morning and afternoon. waves 2 to 4 feet subsiding to
1 to 3 feet in the late morning and afternoon. 
.sunday night...west winds 5 to 10 knots becoming northwest 15 to
20 knots. waves 2 feet or less building to 3 to 5 feet in the
late evening and overnight. 
.monday...northwest winds 10 to 15 knots becoming light and
variable. waves 3 to 5 feet subsiding to 1 to 3 feet late in the
afternoon. 
.tuesday...south winds 5 to 10 knots increasing to 10 to 15 knots
by midnight. waves 2 feet or less. 
.wednesday...southwest winds 10 to 15 knots veering to the north
by midnight. showers likely until afternoon. a chance of
thunderstorms until early evening. waves 1 to 3 feet building to
3 to 5 feet. 


$$

fzus63 kmkx 151322
glflm 
expires:202608152130;;233267

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
822 am cdt sat aug 15 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...

30.2 inch high pressure is centered along the ontario-quebec
border this morning, resulting in generally light easterly winds
across the open waters. the high will progress into the
northeastern united states tonight as a cold front approaches from
the northern great plains, resulting in a brief period of south-
southeasterly winds this afternoon and tonight. the 
aforementioned surface front will move across lake michigan early
sunday morning, with northwest winds becoming established by
sunday afternoon across the entirety of the lake. periods of
scattered showers and thunderstorms continue today into sunday
morning ahead of the front. severe weather is not anticipated. 

a new area of 30.1 inch high pressure will build in from the
northern great plains late sunday night into monday, bringing
light and variable winds to the waters through the majority of
monday and monday evening. a slow-moving cold front will approach
from the northern great plains tuesday into wednesday, bringing
increasing southwest winds and chances for thunderstorms. precise
timing details will continue to be refined over coming forecasts,
though it does appear that a few stronger storms could be possible
over the southern half of the waters tuesday afternoon & night.
winds will trend light and variable behind the front from
wednesday night through the end of next week.


lmz261-362-364-366-563-565-567-868-152130-
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-
822 am cdt sat aug 15 2026

sheboygan wi to pentwater mi north...

.rest of today...east winds 10 to 20 kt. waves 3 to 5 ft. 
.tonight...east winds 10 to 20 kt veering to south 10 to 15 kt.
slight chance of showers and thunderstorms overnight. waves 1 to
3 ft subsiding to 1 to 2 ft. 
.sunday...west winds 10 to 15 kt becoming northwest 10 to 20 kt
late in the morning, then increasing to 15 to 25 kt early in the
afternoon becoming north to 30 kt late. chance of showers in the
morning. waves 1 to 2 ft building to 2 to 4 ft. 
.sunday night...north winds to 30 kt diminishing to 10 to 20 kt
overnight. waves 2 to 4 ft. 
.monday...northwest winds 10 to 15 kt backing to southwest 10 to
20 kt. waves 1 to 3 ft. 
.monday night...southwest winds 10 to 15 kt increasing to 10 to
20 kt. waves 1 to 3 ft. 
.tuesday...southwest winds 15 to 25 kt increasing to 30 kt.
chance of showers. waves 2 to 4 ft. 
.wednesday...north winds 15 to 25 kt increasing to 30 kt. chance
of showers. waves 3 to 5 ft.  

$$

fzus63 kmkx 151322
glflm 
expires:202608152130;;233268

open lake forecast for lake michigan
national weather service milwaukee/sullivan wi
822 am cdt sat aug 15 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...

30.2 inch high pressure is centered along the ontario-quebec
border this morning, resulting in generally light easterly winds
across the open waters. the high will progress into the
northeastern united states tonight as a cold front approaches from
the northern great plains, resulting in a brief period of south-
southeasterly winds this afternoon and tonight. the 
aforementioned surface front will move across lake michigan early
sunday morning, with northwest winds becoming established by
sunday afternoon across the entirety of the lake. periods of
scattered showers and thunderstorms continue today into sunday
morning ahead of the front. severe weather is not anticipated. 

a new area of 30.1 inch high pressure will build in from the
northern great plains late sunday night into monday, bringing
light and variable winds to the waters through the majority of
monday and monday evening. a slow-moving cold front will approach
from the northern great plains tuesday into wednesday, bringing
increasing southwest winds and chances for thunderstorms. precise
timing details will continue to be refined over coming forecasts,
though it does appear that a few stronger storms could be possible
over the southern half of the waters tuesday afternoon & night.
winds will trend light and variable behind the front from
wednesday night through the end of next week.


lmz080-669-671-673-675-777-779-870-872-874-876-878-152130-
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-
822 am cdt sat aug 15 2026

sheboygan wi to pentwater mi south...

.rest of today...southeast winds 10 to 20 kt. scattered showers
with isolated thunderstorms. waves 3 to 5 ft. 
.tonight...southeast winds 10 to 15 kt becoming southwest 5 to
10 kt. slight chance of showers and thunderstorms overnight.
waves 2 to 4 ft subsiding to 1 to 2 ft. 
.sunday...west winds 10 to 20 kt becoming northwest 10 to 15 kt.
chance of showers in the morning. waves 1 to 2 ft. 
.sunday night...north winds 10 to 20 kt. waves 2 to 4 ft. 
.monday...north winds 10 to 15 kt becoming northwest 10 to 20 kt.
waves 2 to 4 ft. 
.monday night...south winds 10 to 15 kt becoming southwest. waves
1 to 2 ft building to 1 to 3 ft. 
.tuesday...southwest winds 10 to 20 kt. waves 2 to 4 ft. 
.wednesday...west winds 15 to 25 kt becoming north to 30 kt.
chance of showers and thunderstorms. waves 4 to 6 ft occasionally
to 8 ft.  

$$