fzus53 kapx 210228
nshapx
expires:202608211030;;082904

nearshore marine forecast
national weather service gaylord mi
1028 pm edt thu aug 20 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.


lmz346-211030-
manistee to point betsie mi-
1028 pm edt thu aug 20 2026

...small craft advisory in effect from 10 am edt friday through
friday evening...

.overnight...south wind 10 to 15 knots. slight chance of showers
after midnight. waves 2 feet or less. 
.friday...south wind 15 to 25 knots. chance of showers and slight
chance of thunderstorms. waves 2 to 4 feet. 
.friday night...southwest wind 10 to 15 knots. showers likely and
a chance of thunderstorms. waves 2 to 4 feet. 
.saturday...north wind 10 to 15 knots. mostly sunny. waves 2 feet
or less. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 210623
nshgrb
expires:202608211000;;091125

nearshore marine forecast
national weather service green bay wi
123 am cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz541>543-211000-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
123 am cdt fri aug 21 2026

.rest of the night...s wind 10 to 15 kts. waves 1 to 3 ft. a
chance of showers. 
.friday...s wind 10 to 20 kts. waves 1 to 3 ft building to 2 to
4 ft in the afternoon. a chance of showers and thunderstorms. 
.friday night...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 2 ft or less. a chance of
showers in the afternoon.  

$$

fzus53 kgrr 210611
nshgrr
expires:202608210800;;090548

nearshore marine forecast
national weather service grand rapids mi
211 am edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz849-210800-
pentwater to manistee mi-
211 am edt fri aug 21 2026

.rest of tonight...south winds 10 to 15 knots. partly cloudy. waves
1 foot or less. 
.friday...south winds 15 to 25 knots. partly sunny with a chance of
rain showers and a slight chance of thunderstorms. waves 2 to
4 feet. 
.friday night...south winds 15 to 25 knots becoming southwest 5 to
15 knots after midnight. mostly cloudy with a chance of showers and
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. 
.monday...north winds 5 to 15 knots. sunny. waves 1 to 3 feet. 
.tuesday...southwest winds 10 to 20 knots. mostly sunny. waves 2 to
4 feet. 

$$

fzus53 kgrr 210611
nshgrr
expires:202608210800;;090549

nearshore marine forecast
national weather service grand rapids mi
211 am edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz848-210800-
whitehall to pentwater mi-
211 am edt fri aug 21 2026

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

$$

fzus53 kgrr 210611
nshgrr
expires:202608210800;;090550

nearshore marine forecast
national weather service grand rapids mi
211 am edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz847-210800-
grand haven to whitehall mi-
211 am edt fri aug 21 2026

.rest of tonight...southeast winds 10 to 15 knots. partly cloudy.
waves 1 foot or less. 
.friday...south winds 10 to 20 knots. partly sunny. waves 1 to
3 feet. 
.friday night...southwest winds 15 to 20 knots. partly cloudy with a
chance of showers and thunderstorms. waves 1 to 3 feet. 
.saturday...northwest winds 10 to 20 knots increasing to 30 knots in
the late morning and afternoon. mostly sunny with a chance of rain
showers and a slight chance of thunderstorms. waves 1 to 3 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. 
.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 10 to 15 knots veering southwest early in the
afternoon. mostly sunny. waves 2 to 4 feet. 

$$

fzus53 kgrr 210611
nshgrr
expires:202608210800;;090552

nearshore marine forecast
national weather service grand rapids mi
211 am edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz845-210800-
south haven to holland mi-
211 am edt fri aug 21 2026

.rest of tonight...southeast winds 10 to 15 knots. partly cloudy.
waves 1 foot or less. 
.friday...south winds 10 to 15 knots veering southwest early in the
afternoon. partly sunny. waves around 1 foot. 
.friday night...southwest winds 10 to 15 knots. rain showers likely
and a chance of thunderstorms. waves around 1 foot. 
.saturday...west winds 10 to 20 knots veering northwest 20 to
25 knots in the late morning and afternoon. rain showers likely and
a slight chance of thunderstorms. waves 1 to 2 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 4 to 6 feet building to 6 to
8 feet early in the afternoon. 
.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. 

$$

fzus53 kgrr 210611
nshgrr
expires:202608210800;;090551

nearshore marine forecast
national weather service grand rapids mi
211 am edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz846-210800-
holland to grand haven mi-
211 am edt fri aug 21 2026

.rest of tonight...southeast winds 10 to 15 knots. partly cloudy.
waves 1 foot or less. 
.friday...south winds 10 to 15 knots veering southwest early in the
afternoon. partly sunny. waves 1 to 2 feet. 
.friday night...south winds 10 to 15 knots. rain showers likely and
a chance of thunderstorms. waves 1 to 2 feet. 
.saturday...west winds 15 to 20 knots veering northwest to 30 knots
in the late morning and afternoon. mostly sunny with a slight chance
of showers and thunderstorms. waves 1 to 3 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 15 to 25 knots increasing to 30 knots
early in the afternoon. sunny. waves 4 to 6 feet building to 6 to
8 feet early in the afternoon. 
.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 1 to 2 feet. 

$$

fzus53 kgrr 210611
nshgrr
expires:202608210800;;090553

nearshore marine forecast
national weather service grand rapids mi
211 am edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz844-210800-
st joseph to south haven mi-
211 am edt fri aug 21 2026

.rest of tonight...southeast winds 5 to 10 knots. partly cloudy.
waves 1 foot or less. 
.friday...south winds around 10 knots veering southwest in the late
morning and afternoon. partly sunny. waves 1 foot or less. 
.friday night...south winds 5 to 15 knots. rain showers likely and a
chance of thunderstorms. waves around 1 foot. 
.saturday...west winds 10 to 20 knots veering northwest 20 to
25 knots in the late morning and afternoon. mostly sunny with a
chance of rain showers and a slight chance of thunderstorms. waves
1 to 2 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 5 to 7 feet. 
.monday...northwest winds 5 to 10 knots. mostly sunny. waves 1 to
3 feet. 
.tuesday...south winds 5 to 10 knots veering southwest early in the
afternoon. mostly sunny. waves less than 1 foot. 

$$

fzus53 kiwx 210142
nshiwx
expires:202608210815;;081407

nearshore marine forecast
national weather service northern indiana
942 pm edt thu aug 20 2026

for waters within five nautical miles of shore on lake michigan


lmz043-210815-
new buffalo mi to st joseph mi-
942 pm edt thu aug 20 2026

.overnight...north winds 5 to 10 knots becoming southeast. partly
cloudy. waves around 1 foot. 
.friday...southeast winds less than 10 knots becoming southwest.
mostly sunny. waves 1 foot or less. 
.friday night...south winds 5 to 10 knots becoming southwest. a
slight chance of showers and thunderstorms in the evening, then
showers likely with a chance of thunderstorms overnight. waves
1 foot or less. 
.saturday...west winds 5 to 15 knots becoming northwest 15 to
20 knots. gusts up to 25 knots. a chance of showers and
thunderstorms in the morning, then a chance of showers in the
afternoon. waves 2 feet or less building to 3 to 6 feet by midday.

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 63 degrees and at michigan
city is 64 degrees.

$$

fzus53 kiwx 210142
nshiwx
expires:202608210815;;081406

nearshore marine forecast
national weather service northern indiana
942 pm edt thu aug 20 2026

for waters within five nautical miles of shore on lake michigan


lmz046-210815-
michigan city in to new buffalo mi-
942 pm edt thu aug 20 2026

.overnight...north winds 5 to 10 knots becoming light and
variable. partly cloudy. waves around 1 foot. 
.friday...south winds less than 10 knots. mostly sunny. waves
1 foot or less. 
.friday night...south winds 5 to 10 knots becoming southwest. a
chance of showers with a slight chance of thunderstorms in the
evening, then showers likely with a slight chance of
thunderstorms overnight. waves 1 foot or less. 
.saturday...west winds 5 to 15 knots becoming northwest 10 to 20
knots. gusts up to 25 knots. a slight chance of showers and 
thunderstorms in the morning, then a slight chance of showers in 
the afternoon. waves 2 feet or less building to 3 to 5 feet by
midday.

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 63 degrees and at michigan
city is 64 degrees.

$$

fzus53 klot 210225
nshlot
expires:202608210915;;082795

nearshore marine forecast
national weather service chicago/romeoville il
925 pm cdt thu aug 20 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>745-210915-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
925 pm cdt thu aug 20 2026

.rest of tonight...northeast winds around 10 kt becoming south
after midnight. increasing cloudiness. waves 1 to 2 ft. 
.friday...south winds around 10 kt. partly cloudy in the morning,
then becoming mostly cloudy. waves around 1 ft. 
.friday night...south winds 10 to 15 kt becoming southwest.
chance of showers and thunderstorms. waves 1 to 2 ft. 
.saturday...northwest winds 10 to 20 kt becoming north 15 to
25 kt in the afternoon. mostly cloudy in the morning then
clearing. waves 2 to 4 ft building to 3 to 5 ft.  

$$

fzus53 klot 210225
nshlot
expires:202608210915;;082794

nearshore marine forecast
national weather service chicago/romeoville il
925 pm cdt thu aug 20 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>742-210915-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
925 pm cdt thu aug 20 2026

.rest of tonight...northeast winds around 10 kt becoming
southwest after midnight. increasing cloudiness. waves 1 to 2 ft 
subsiding to 1 ft or less.
.friday...southwest winds 10 to 15 kt becoming south in the
afternoon. slight chance of showers and thunderstorms in the
afternoon. waves 1 to 2 ft. 
.friday night...southwest winds around 10 kt becoming west
overnight. chance of showers and thunderstorms, mainly in the 
evening. waves 1 to 2 ft. 
.saturday...northwest winds 10 to 20 kt becoming north. mostly
cloudy in the morning then clearing. waves 1 to 3 ft.  

$$

fzus53 kmkx 210610
nshmkx
expires:202608210900;;090513

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz646-210900-
wind point wi to winthrop harbor il-
110 am cdt fri aug 21 2026

.rest of tonight...west wind 5 knots becoming southwest early in
the morning. partly cloudy. waves nearly calm. 
.friday...southwest wind 5 to 10 knots becoming south 10 to
15 knots in the afternoon. slight chance of showers in the
morning, then chance of showers and thunderstorms in the
afternoon. waves around 1 foot. 
.friday night...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 around
1 foot. 
.saturday...northwest wind 10 to 15 knots veering north early in
the afternoon, then easing to 5 to 10 knots late in the
afternoon. mostly sunny. waves around 1 foot. 

$$

fzus53 kmkx 210610
nshmkx
expires:202608210900;;090512

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz645-210900-
north point light to wind point wi-
110 am cdt fri aug 21 2026

.rest of tonight...southwest wind 5 knots rising to 5 to 10 knots
early in the morning. partly cloudy. waves nearly calm. 
.friday...southwest wind 5 to 10 knots becoming south 10 to
15 knots in the afternoon. slight chance of showers in the
morning, then chance of showers and thunderstorms in the
afternoon. waves around 1 foot. 
.friday night...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 around
1 foot. 
.saturday...northwest wind 10 to 15 knots veering north early in
the afternoon, then easing to 5 to 10 knots late in the
afternoon. slight chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet. 

$$

fzus53 kmkx 210610
nshmkx
expires:202608210900;;090511

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz644-210900-
port washington to north point light wi-
110 am cdt fri aug 21 2026

.rest of tonight...southwest wind 5 knots rising to 5 to 10 knots
early in the morning. partly cloudy. waves nearly calm. 
.friday...southwest wind 5 to 10 knots becoming south 10 to
15 knots in the afternoon. chance of showers through the day.
chance of thunderstorms in the afternoon. patchy fog in the
afternoon. waves around 1 foot. 
.friday night...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 veering north early in
the afternoon, then easing to 5 to 10 knots late in the
afternoon. slight chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet. 

$$

fzus53 kmkx 210610
nshmkx
expires:202608210900;;090510

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 am cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz643-210900-
sheboygan to port washington wi-
110 am cdt fri aug 21 2026

.rest of tonight...southwest wind 5 to 10 knots rising to 10 to
15 knots early in the morning. partly cloudy. waves around
1 foot. 
.friday...southwest wind 10 to 15 knots becoming south 15 to
20 knots in the afternoon. slight chance of thunderstorms in the
morning. chance of showers through the day. chance of
thunderstorms in the afternoon. waves 1 to 2 feet building to
2 to 4 feet in the afternoon. 
.friday night...south wind 10 to 15 knots with gusts to around
20 knots 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 becoming north 5 to
10 knots in the afternoon. slight chance of showers and
thunderstorms in the afternoon. waves 1 to 2 feet. 

$$