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 210333
nshgrb
expires:202608211000;;084877

nearshore marine forecast
national weather service green bay wi
1033 pm cdt thu aug 20 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-
1033 pm cdt thu aug 20 2026

.rest of tonight...s wind 10 to 15 kts. waves 1 to 3 ft. mostly
cloudy. 
.friday...s wind 10 to 15 kts. waves 1 to 3 ft building to 3 to
5 ft in the afternoon. a chance of showers and thunderstorms. a
small craft advisory may be needed. 
.friday night...sw wind 10 to 15 kts veering nw 5 to 10 kts in
the late evening and overnight. waves 3 to 5 ft subsiding to 2 to
4 ft after midnight. a chance of showers and thunderstorms in the
evening. a small craft advisory may be needed. 
.saturday...n wind 10 to 15 kts. waves 1 to 3 ft. a chance of
showers and thunderstorms in the afternoon.  

$$

fzus53 kgrr 210141
nshgrr
expires:202608210800;;081323

nearshore marine forecast
national weather service grand rapids mi
941 pm edt thu aug 20 2026

for waters within five nautical miles of shore on lake michigan


lmz845-210800-
south haven to holland mi-
941 pm edt thu aug 20 2026

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

$$

fzus53 kgrr 210141
nshgrr
expires:202608210800;;081324

nearshore marine forecast
national weather service grand rapids mi
941 pm edt thu aug 20 2026

for waters within five nautical miles of shore on lake michigan


lmz844-210800-
st joseph to south haven mi-
941 pm edt thu aug 20 2026

.through early evening...north winds 10 to 15 knots. sunny. waves
1 foot or less. 
.tonight...north winds 10 to 15 knots veering southeast 5 to
10 knots after midnight. partly cloudy. waves around 1 foot. 
.friday...south winds 5 to 10 knots veering southwest early in the
afternoon. mostly sunny. waves less than 1 foot. 
.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 showers and thunderstorms. waves 1 to 3 feet building to
4 to 6 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 20 to 25 knots. sunny. waves 5 to 7 feet. 
.monday...northwest winds around 10 knots. 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 kgrr 210141
nshgrr
expires:202608210800;;081322

nearshore marine forecast
national weather service grand rapids mi
941 pm edt thu aug 20 2026

for waters within five nautical miles of shore on lake michigan


lmz846-210800-
holland to grand haven mi-
941 pm edt thu aug 20 2026

.through early evening...northwest winds 10 to 20 knots. sunny.
waves 1 foot or less. 
.tonight...north winds 5 to 15 knots veering southeast after
midnight. partly cloudy. waves around 1 foot. 
.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 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 chance of
showers and thunderstorms. waves 3 to 6 feet.
.saturday night...north winds 15 to 25 knots. mostly clear. waves
4 to 6 feet. 
.sunday...north winds to 30 knots backing northwest gales to
35 knots early in the afternoon. sunny. waves 4 to 6 feet building
to 6 to 8 feet early in the afternoon. 
.monday...north winds around 10 knots backing northwest in the late
morning and afternoon. mostly sunny. waves around 1 foot. 
.tuesday...south winds 5 to 15 knots. mostly sunny. waves 1 to
2 feet. 

$$

fzus53 kgrr 210141
nshgrr
expires:202608210800;;081321

nearshore marine forecast
national weather service grand rapids mi
941 pm edt thu aug 20 2026

for waters within five nautical miles of shore on lake michigan


lmz847-210800-
grand haven to whitehall mi-
941 pm edt thu aug 20 2026

.through early evening...northwest winds 10 to 20 knots. sunny.
waves 1 foot or less. 
.tonight...northwest winds 5 to 15 knots veering southeast after
midnight. partly cloudy. waves around 1 foot. 
.friday...south winds 10 to 20 knots. partly sunny. waves 2 to
4 feet. 
.friday night...south winds around 15 knots. mostly cloudy with a
chance of showers and thunderstorms. waves 2 to 4 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
4 to 6 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 to 30 knots backing northwest gales to
35 knots early in the afternoon. sunny. waves 5 to 7 feet. 
.monday...north winds around 10 knots backing northwest in the late
morning and afternoon. sunny. waves around 1 foot. 
.tuesday...south winds 10 to 20 knots. mostly sunny. waves 2 to
4 feet. 

$$

fzus53 kgrr 210141
nshgrr
expires:202608210800;;081320

nearshore marine forecast
national weather service grand rapids mi
941 pm edt thu aug 20 2026

for waters within five nautical miles of shore on lake michigan


lmz848-210800-
whitehall to pentwater mi-
941 pm edt thu aug 20 2026

.through early evening...northwest winds 10 to 15 knots. sunny.
waves 1 foot or less. 
.tonight...northwest winds 5 to 15 knots veering east in the late
evening and early morning, then veering southeast 5 to 15 knots
after midnight. partly cloudy. waves 1 foot or less. 
.friday...south winds 10 to 20 knots. partly sunny. waves 1 to
2 feet building to 2 to 4 feet in the late morning and afternoon. 
.friday night...south winds 10 to 20 knots veering southwest after
midnight. mostly cloudy with a chance of showers and thunderstorms.
waves 2 to 4 feet. 
.saturday...northwest winds 15 to 25 knots. mostly sunny with a
slight chance of showers and thunderstorms. waves 2 to 4 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 increasing to 20 to 25 knots
early in the afternoon. mostly sunny. waves 1 to 3 feet building to
2 to 4 feet early in the afternoon. 

$$

fzus53 kgrr 210141
nshgrr
expires:202608210800;;081319

nearshore marine forecast
national weather service grand rapids mi
941 pm edt thu aug 20 2026

for waters within five nautical miles of shore on lake michigan


lmz849-210800-
pentwater to manistee mi-
941 pm edt thu aug 20 2026

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

$$

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;;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 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 kmkx 210210
nshmkx
expires:202608211000;;082444

nearshore marine forecast
national weather service milwaukee/sullivan wi
910 pm cdt thu aug 20 2026

for waters within five nautical miles of shore on lake michigan


lmz644-211000-
port washington to north point light wi-
910 pm cdt thu aug 20 2026

.rest of tonight...southwest wind 5 to 10 knots. partly cloudy.
waves nearly calm. 
.friday...southwest wind 5 to 10 knots rising to 10 to 15 knots
late in the morning, then backing south early in the afternoon
becoming south 10 to 15 knots late 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 veering west after midnight
becoming northwest 10 to 15 knots 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. chance of showers and slight chance of thunderstorms
in the afternoon. waves 1 to 2 feet. 

$$

fzus53 kmkx 210210
nshmkx
expires:202608211000;;082445

nearshore marine forecast
national weather service milwaukee/sullivan wi
910 pm cdt thu aug 20 2026

for waters within five nautical miles of shore on lake michigan


lmz645-211000-
north point light to wind point wi-
910 pm cdt thu aug 20 2026

.rest of tonight...southwest wind 5 knots rising to 5 to 10 knots
after midnight, then becoming southwest 5 to 10 knots early in
the morning. partly cloudy. waves nearly calm. 
.friday...southwest wind 5 to 10 knots rising to 10 to 15 knots
late in the morning, then backing south early in the afternoon
becoming south 10 to 15 knots late in the afternoon. 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 veering west after midnight
becoming northwest 10 to 15 knots 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. chance of showers and slight chance of thunderstorms
in the afternoon. waves 1 to 2 feet. 

$$

fzus53 kmkx 210210
nshmkx
expires:202608211000;;082446

nearshore marine forecast
national weather service milwaukee/sullivan wi
910 pm cdt thu aug 20 2026

for waters within five nautical miles of shore on lake michigan


lmz646-211000-
wind point wi to winthrop harbor il-
910 pm cdt thu aug 20 2026

.rest of tonight...southwest wind 5 knots rising to 5 to 10 knots
early in the morning. mostly clear. waves around 1 foot. 
.friday...southwest wind 5 to 10 knots becoming south 10 to
15 knots in the afternoon. 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 veering west after midnight
becoming northwest 10 to 15 knots 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. chance of showers and slight chance of thunderstorms
in the afternoon. waves 1 to 2 feet. 

$$

fzus53 kmkx 210210
nshmkx
expires:202608211000;;082443

nearshore marine forecast
national weather service milwaukee/sullivan wi
910 pm cdt thu aug 20 2026

for waters within five nautical miles of shore on lake michigan


lmz643-211000-
sheboygan to port washington wi-
910 pm cdt thu aug 20 2026

.rest of tonight...southwest wind 5 to 10 knots. 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 showers in the
morning, then chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet building to 3 to 4 feet in the
afternoon. 
.friday night...south wind 10 to 15 knots becoming southwest 5 to
10 knots late in the evening, then veering northwest after
midnight rising to 10 to 15 knots early in the morning. chance of
thunderstorms through around midnight. chance of showers through
the night. waves 2 to 4 feet subsiding to 1 to 2 feet after
midnight. 
.saturday...northwest wind 10 to 15 knots veering north early in
the afternoon, then easing to 5 to 10 knots late in the
afternoon. chance of showers and slight chance of thunderstorms
in the afternoon. waves 1 to 2 feet. 

$$