fzus53 kapx 211805
nshapx
expires:202608220215;;118744

nearshore marine forecast
national weather service gaylord mi
205 pm edt fri aug 21 2026

for waters within five nautical miles of shore on lakes huron...
michigan and superior. 

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.


lmz346-220215-
manistee to point betsie mi-
205 pm edt fri aug 21 2026

...small craft advisory in effect until 8 pm edt this evening...

.through early evening...south wind 10 to 15 knots with gusts to
25 knots. scattered
showers. waves 2 to 3 feet. 
.tonight...west wind 10 to 15 knots. scattered showers. waves
2 to 3 feet. 
.saturday...north wind 10 to 15 knots. scattered showers and
thunderstorms. waves 2 feet or less. 
.saturday night...north wind 10 to 20 knots. partly cloudy. waves
3 to 5 feet. 
.sunday...north wind 10 to 20 knots. mostly sunny. waves 3 to
5 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 212153
nshgrb
expires:202608220400;;130885

nearshore marine forecast
national weather service green bay wi
453 pm cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz541>543-220400-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
453 pm cdt fri aug 21 2026

.late this afternoon...s wind 10 to 15 kts. waves 2 to 4 ft.
mostly cloudy. 
.tonight...sw wind 10 to 15 kts veering nw in the late evening
and overnight. waves 2 to 4 ft subsiding to 1 to 3 ft after
midnight. a chance of showers and thunderstorms in the evening. 
.saturday...n wind 10 to 15 kts. waves 1 to 3 ft. a chance of
showers and thunderstorms in the afternoon. 
.saturday night...n wind 10 to 20 kts. waves 1 to 3 ft. mostly
clear. 
.sunday...n wind 10 to 15 kts. waves 1 to 3 ft. mostly sunny.  

$$

fzus53 kgrr 211806
nshgrr
expires:202608220800;;118767

nearshore marine forecast
national weather service grand rapids mi
206 pm edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz845-220800-
south haven to holland mi-
206 pm edt fri aug 21 2026

.through early evening...southwest winds 10 to 15 knots. mostly
cloudy. waves around 1 foot. 
.tonight...southwest winds 10 to 15 knots. rain showers likely and a
chance of thunderstorms. waves around 1 foot. 
.saturday...northwest winds 15 to 25 knots. mostly sunny with a
chance of rain showers and a slight chance of thunderstorms. waves
2 to 4 feet building to 3 to 5 feet in the late morning and
afternoon. 
.saturday night...north winds 15 to 25 knots. mostly clear. waves
3 to 5 feet. 
.sunday...north winds 15 to 25 knots backing northwest to 30 knots
early in the afternoon. sunny. waves 5 to 7 feet. 
.sunday night...northwest winds 15 to 25 knots decreasing to 10 to
15 knots in the late evening and overnight. mostly clear. waves 4 to
6 feet subsiding to 1 to 3 feet. 
.monday...north winds 5 to 10 knots backing northwest early in the
afternoon. mostly sunny. waves 1 to 2 feet. 
.tuesday...south winds 5 to 15 knots veering southwest early in the
afternoon. mostly sunny. waves 1 foot or less. 
.wednesday...southwest winds 15 to 20 knots. partly sunny with a
chance of rain showers. waves 2 to 4 feet. 

$$

fzus53 kgrr 211806
nshgrr
expires:202608220800;;118766

nearshore marine forecast
national weather service grand rapids mi
206 pm edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz846-220800-
holland to grand haven mi-
206 pm edt fri aug 21 2026

.through early evening...southwest winds around 15 knots. mostly
cloudy. waves 1 to 2 feet. 
.tonight...southwest winds 10 to 15 knots. rain showers likely and a
chance of thunderstorms. waves 1 to 2 feet. 
.saturday...northwest winds 15 to 25 knots increasing to 30 knots
early in the afternoon. mostly sunny with a chance of rain showers
and a slight chance of thunderstorms. waves 2 to 4 feet building to
3 to 5 feet in the late morning and afternoon. 
.saturday night...north winds 15 to 25 knots. mostly clear. waves
3 to 5 feet subsiding to 2 to 4 feet after midnight. 
.sunday...northwest winds 15 to 25 knots increasing to 30 knots
early in the afternoon. sunny. waves 5 to 7 feet. 
.sunday night...northwest winds to 30 knots becoming north 5 to
15 knots in the late evening and overnight. mostly clear. waves 5 to
7 feet subsiding to 1 to 2 feet. 
.monday...north winds 5 to 10 knots backing northwest 10 to 15 knots
in the late morning and afternoon. mostly sunny. waves around
1 foot. 
.tuesday...south winds 5 to 15 knots veering southwest early in the
afternoon. mostly sunny. waves around 1 foot. 
.wednesday...southwest winds 15 to 20 knots. partly sunny with a
chance of showers and thunderstorms. waves 3 to 5 feet. 

$$

fzus53 kgrr 211806
nshgrr
expires:202608220800;;118765

nearshore marine forecast
national weather service grand rapids mi
206 pm edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz847-220800-
grand haven to whitehall mi-
206 pm edt fri aug 21 2026

.through early evening...southwest winds 15 to 20 knots. mostly
cloudy. waves 1 to 3 feet. 
.tonight...south winds around 15 knots veering west after midnight.
rain showers likely and a chance of thunderstorms in the evening,
then a chance of showers and thunderstorms after midnight. waves
1 to 3 feet. 
.saturday...northwest winds 15 to 25 knots increasing to 30 knots
early in the afternoon. mostly sunny with a chance of rain showers
and a slight chance of thunderstorms. waves 2 to 4 feet building to
3 to 5 feet in the late morning and afternoon. 
.saturday night...north winds 15 to 25 knots. mostly clear. waves
3 to 5 feet. 
.sunday...northwest winds to 30 knots. sunny. waves 5 to 7 feet. 
.sunday night...northwest winds to 30 knots becoming north 5 to
15 knots in the late evening and overnight. mostly clear. waves 4 to
6 feet subsiding to 2 to 4 feet in the late evening and overnight. 
.monday...north winds 5 to 10 knots backing northwest 10 to 15 knots
in the late morning and afternoon. mostly sunny. waves 1 foot or
less. 
.tuesday...south winds 10 to 15 knots veering southwest early in the
afternoon. mostly sunny. waves 1 to 3 feet. 
.wednesday...southwest winds 20 to 25 knots. partly sunny with a
chance of showers and thunderstorms. waves 3 to 5 feet. 

$$

fzus53 kgrr 211806
nshgrr
expires:202608220800;;118764

nearshore marine forecast
national weather service grand rapids mi
206 pm edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz848-220800-
whitehall to pentwater mi-
206 pm edt fri aug 21 2026

...small craft advisory in effect until 8 pm edt this evening...

.through early evening...south winds 15 to 20 knots. cloudy with a
slight chance of showers and thunderstorms. waves 2 to 4 feet. 
.tonight...south winds 10 to 20 knots veering west after midnight.
rain showers likely and a chance of thunderstorms in the evening,
then a chance of showers and thunderstorms after midnight. waves
2 to 4 feet. 
.saturday...north winds 10 to 20 knots increasing to 20 to 25 knots
in the late morning and afternoon. mostly sunny with a slight chance
of rain showers. waves 3 to 5 feet. 
.saturday night...north winds 20 to 25 knots. partly cloudy. waves
3 to 5 feet. 
.sunday...north winds to 30 knots. sunny. waves 4 to 6 feet. 
.sunday night...north winds 15 to 25 knots decreasing to 10 to
15 knots in the late evening and overnight. mostly clear. waves 3 to
5 feet subsiding to 2 to 4 feet in the late evening and overnight. 
.monday...north winds 10 to 15 knots backing northwest early in the
afternoon. sunny. waves 1 to 2 feet. 
.tuesday...south winds 10 to 20 knots. mostly sunny. waves 2 to
4 feet. 
.wednesday...southwest winds 15 to 20 knots. partly sunny with a
chance of showers and thunderstorms. waves 3 to 5 feet. 

$$

fzus53 kgrr 211806
nshgrr
expires:202608220800;;118763

nearshore marine forecast
national weather service grand rapids mi
206 pm edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz849-220800-
pentwater to manistee mi-
206 pm edt fri aug 21 2026

...small craft advisory in effect until 8 pm edt this evening...

.through early evening...south winds 15 to 20 knots. mostly cloudy
with a chance of showers and thunderstorms. waves 2 to 4 feet. 
.tonight...south winds 10 to 20 knots veering northwest 5 to
15 knots after midnight. rain showers likely and a chance of
thunderstorms. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.saturday...north winds 10 to 20 knots. mostly sunny with a slight
chance of rain showers. waves 2 to 4 feet. 
.saturday night...north winds 15 to 25 knots. mostly clear. waves
2 to 4 feet building to 4 to 6 feet in the late evening and
overnight. 
.sunday...north winds 15 to 25 knots. sunny. waves 4 to 6 feet. 
.sunday night...north winds 15 to 25 knots decreasing to 5 to
15 knots in the late evening and overnight. mostly clear. waves 3 to
5 feet subsiding to 2 to 4 feet in the late evening and overnight. 
.monday...north winds 5 to 15 knots. sunny. waves 1 to 2 feet. 
.tuesday...southwest winds 10 to 20 knots. mostly sunny. waves 2 to
4 feet. 
.wednesday...southwest winds 15 to 20 knots. partly sunny with a
chance of showers and thunderstorms. waves 3 to 5 feet. 

$$

fzus53 kgrr 211806
nshgrr
expires:202608220800;;118768

nearshore marine forecast
national weather service grand rapids mi
206 pm edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz844-220800-
st joseph to south haven mi-
206 pm edt fri aug 21 2026

.through early evening...southwest winds around 10 knots. partly
sunny. waves 1 foot or less. 
.tonight...southwest winds 5 to 15 knots. a chance of showers and
thunderstorms in the evening, then rain showers likely and a chance
of thunderstorms after midnight. waves around 1 foot. 
.saturday...northwest winds 15 to 25 knots. partly sunny with a
chance of rain showers and a slight chance of thunderstorms. waves
2 to 4 feet building to 3 to 5 feet in the late morning and
afternoon. 
.saturday night...north winds 15 to 20 knots. mostly clear. waves
3 to 5 feet. 
.sunday...north winds 15 to 25 knots. sunny. waves 4 to 6 feet. 
.sunday night...northwest winds 10 to 20 knots. mostly clear. waves
4 to 6 feet subsiding to 2 to 4 feet after midnight. 
.monday...northwest winds 5 to 10 knots. mostly sunny. waves 1 to
2 feet. 
.tuesday...south winds 5 to 10 knots veering southwest early in the
afternoon. mostly sunny. waves less than 1 foot. 
.wednesday...southwest winds 10 to 15 knots. partly sunny with a
chance of rain showers. waves 1 to 2 feet. 

$$

fzus53 kiwx 211943
nshiwx
expires:202608220215;;125064

nearshore marine forecast
national weather service northern indiana
343 pm edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz046-220215-
michigan city in to new buffalo mi-
343 pm edt fri aug 21 2026

...small craft advisory in effect from saturday morning through
saturday evening...

.tonight...south winds 5 to 10 knots becoming southwest. a chance
of showers and thunderstorms this evening, then showers likely
with a chance of thunderstorms after midnight. waves 1 foot or
less. 
.saturday...west winds 10 to 15 knots becoming northwest. gusts
up to 25 knots. a slight chance of showers and thunderstorms in
the morning. waves 1 to 2 feet building to 3 to 6 feet. 
.saturday night...north winds 10 to 15 knots. a slight chance of
showers overnight. waves 3 to 4 feet. 
.sunday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. gusts up to 25 knots. a slight chance of showers in the
morning. waves 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 62 degrees and at michigan
city is 63 degrees.

$$

fzus53 kiwx 211943
nshiwx
expires:202608220215;;125065

nearshore marine forecast
national weather service northern indiana
343 pm edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz043-220215-
new buffalo mi to st joseph mi-
343 pm edt fri aug 21 2026

...small craft advisory in effect from saturday morning through
saturday evening...

.tonight...south winds 5 to 10 knots becoming southwest. a chance
of showers and thunderstorms this evening, then showers likely
with a chance of thunderstorms after midnight. waves 1 foot or
less. 
.saturday...west winds 10 to 15 knots becoming northwest 15 to
20 knots. gusts up to 25 knots. a chance of showers with a slight
chance of thunderstorms in the morning. waves 1 to 2 feet
building to 3 to 6 feet. 
.saturday night...north winds 10 to 15 knots. a slight chance of
showers overnight. waves 3 to 4 feet. 
.sunday...north winds 10 to 15 knots increasing to 15 to
20 knots. gusts up to 25 knots. a slight chance of showers in the
morning. waves 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 62 degrees and at michigan
city is 63 degrees.

$$

fzus53 klot 212008
nshlot
expires:202608220315;;126494

nearshore marine forecast
national weather service chicago/romeoville il
308 pm cdt fri aug 21 2026

for waters within 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 waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.


lmz743-744-220315-
calumet harbor il to gary in-gary to burns harbor in-
308 pm cdt fri aug 21 2026

...severe thunderstorm watch 610 in effect until 10 pm cdt this
evening...

.tonight...south winds 10 to 15 kt becoming west late. showers
and thunderstorms likely in the evening, then chance of showers
and thunderstorms after midnight. some thunderstorms may be
severe with damaging winds and large hail in the evening. waves
1 to 3 ft. wind and waves higher in and near thunderstorms. 
.saturday...northwest winds 10 to 20 kt becoming north in the
afternoon. slight chance of thunderstorms with isolated showers
in the afternoon. waves 2 to 4 ft. 
.saturday night...northwest winds 10 to 15 kt becoming north.
mostly clear in the evening, then becoming partly cloudy. waves
2 to 4 ft.
.sunday...northwest winds 10 to 20 kt becoming north in the
afternoon. mostly sunny. waves 3 to 5 ft.

$$

fzus53 klot 212008
nshlot
expires:202608220315;;126495

nearshore marine forecast
national weather service chicago/romeoville il
308 pm cdt fri aug 21 2026

for waters within 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 waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.


lmz745-220315-
burns harbor to michigan city in-
308 pm cdt fri aug 21 2026

.tonight...south winds 10 to 15 kt becoming west late. showers
and thunderstorms likely in the evening, then chance of showers
and thunderstorms after midnight. waves 1 to 3 ft. wind and 
waves higher in and near thunderstorms.
.saturday...northwest winds 15 to 20 kt. slight chance of
thunderstorms with isolated showers in the afternoon. waves 3 
to 5 ft. 
.saturday night...northwest winds 15 to 20 kt becoming north.
slight chance of showers overnight. waves 3 to 5 ft. 
.sunday...northwest winds 15 to 20 kt becoming north. mostly
sunny. waves 3 to 6 ft occasionally to 8 ft. a small craft 
advisory will likely be needed.

$$

fzus53 klot 212008
nshlot
expires:202608220315;;126493

nearshore marine forecast
national weather service chicago/romeoville il
308 pm cdt fri aug 21 2026

for waters within 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 waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.


lmz740>742-220315-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
308 pm cdt fri aug 21 2026

...severe thunderstorm watch 610 in effect until 10 pm cdt this
evening...

.tonight...south winds 10 to 15 kt becoming west late. showers
and thunderstorms likely in the evening, then chance of showers
and thunderstorms after midnight. some thunderstorms may be
severe with damaging winds and large hail in the evening. waves
1 to 3 ft. wind and waves higher in and near thunderstorms.
.saturday...northwest winds 10 to 20 kt becoming north. 
scattered showers and slight chance of thunderstorms in the 
afternoon. waves 2 to 4 ft. 
.saturday night...northwest winds 10 to 15 kt becoming north.
mostly clear. waves 2 to 4 ft. 
.sunday...northwest winds 10 to 15 kt becoming north. mostly
sunny. waves 2 to 4 ft.

$$

fzus53 kmkx 212210
nshmkx
expires:202608220400;;132126

nearshore marine forecast
national weather service milwaukee/sullivan wi
510 pm cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz643-220400-
sheboygan to port washington wi-
510 pm cdt fri aug 21 2026

.tonight...south wind 10 to 15 knots becoming southwest 5 to
10 knots late in the evening, then becoming west 10 to 15 knots
after midnight veering northwest early in the morning. chance of
showers and thunderstorms through around midnight. waves 2 to
4 feet subsiding to 1 to 2 feet in the late evening and
overnight. 
.saturday...northwest wind 10 to 15 knots veering north late in
the afternoon. chance of showers and slight chance of
thunderstorms in the afternoon. waves 1 to 2 feet. 
.saturday night...north wind 10 to 15 knots backing northwest
early in the morning. chance of showers and thunderstorms through
around midnight. waves 1 to 2 feet. 
.sunday...northwest wind 10 to 20 knots becoming 15 to 20 knots
late in the morning, then becoming north 10 to 15 knots with
gusts to around 20 knots early in the afternoon becoming north
10 to 15 knots late in the afternoon. sunny. waves 1 to 2 feet. 

$$

fzus53 kmkx 212210
nshmkx
expires:202608220400;;132127

nearshore marine forecast
national weather service milwaukee/sullivan wi
510 pm cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz644-220400-
port washington to north point light wi-
510 pm cdt fri aug 21 2026

.tonight...south wind 10 to 15 knots becoming southwest 5 to
10 knots late in the evening, then becoming west 10 to 15 knots
after midnight veering northwest early in the morning. chance of
showers in the evening. chance of thunderstorms through around
midnight. slight chance of showers late in the evening. waves
1 to 2 feet. 
.saturday...northwest wind 10 to 15 knots veering north late in
the afternoon. chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet. 
.saturday night...north wind 10 to 15 knots backing northwest
early in the morning. chance of showers and thunderstorms through
around midnight. waves 1 to 2 feet. 
.sunday...northwest wind 10 to 15 knots veering north late in the
afternoon. sunny. waves 1 to 2 feet. 

$$

fzus53 kmkx 212210
nshmkx
expires:202608220400;;132128

nearshore marine forecast
national weather service milwaukee/sullivan wi
510 pm cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz645-220400-
north point light to wind point wi-
510 pm cdt fri aug 21 2026

.tonight...south wind 10 to 15 knots becoming southwest 5 to
10 knots late in the evening, then becoming west 10 to 15 knots
after midnight veering northwest early in the morning. chance of
showers and thunderstorms through around midnight. waves 1 to
2 feet. 
.saturday...northwest wind 10 to 15 knots with gusts to around
20 knots veering north late in the afternoon. chance of showers
and thunderstorms in the afternoon. waves 1 to 2 feet. 
.saturday night...north wind 10 to 15 knots backing northwest
early in the morning. chance of showers and thunderstorms through
around midnight. waves 1 to 2 feet building to 2 to 4 feet after
midnight. 
.sunday...northwest wind 10 to 15 knots veering north in the
afternoon. sunny. waves 2 to 4 feet. 

$$

fzus53 kmkx 212210
nshmkx
expires:202608220400;;132129

nearshore marine forecast
national weather service milwaukee/sullivan wi
510 pm cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz646-220400-
wind point wi to winthrop harbor il-
510 pm cdt fri aug 21 2026

.tonight...south wind 10 to 15 knots becoming southwest 5 to
10 knots late in the evening, then becoming west 10 to 15 knots
after midnight veering northwest early in the morning. showers
and thunderstorms likely in the evening, then chance of showers
and thunderstorms late in the evening. waves 1 to 2 feet. 
.saturday...northwest wind 10 to 15 knots veering north late in
the afternoon. chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet. 
.saturday night...north wind 10 to 15 knots. chance of showers
and thunderstorms through around midnight. waves 1 to 2 feet
building to 2 to 4 feet after midnight. 
.sunday...northwest wind 10 to 15 knots veering north late in the
afternoon. sunny. waves 2 to 4 feet. 

$$