fzus53 kapx 201802
nshapx
expires:202608210215;;060330

nearshore marine forecast
national weather service gaylord mi
202 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.


lmz346-210215-
manistee to point betsie mi-
202 pm edt thu aug 20 2026

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

.tonight...south wind 10 to 15 knots. partly cloudy early in the
evening then becoming mostly cloudy. waves 2 feet or less. 
.friday...south wind 10 to 15 knots with gusts to around 25 knots.
chance of showers and slight chance of thunderstorms. waves 2 to 
3 feet.
.friday night...southwest wind 10 to 15 knots. showers likely and
a chance of thunderstorms. waves 2 to 3 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 kgrr 201823
nshgrr
expires:202608210800;;061585

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

for waters within five nautical miles of shore on lake michigan


lmz845-210800-
south haven to holland mi-
223 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 around 1 foot. 
.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 3 to 5 feet. 
.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. 
.monday...northwest winds around 10 knots. sunny. waves around
1 foot. 
.tuesday...southwest winds 5 to 15 knots. mostly sunny. waves around
1 foot. 

$$

fzus53 kgrr 201823
nshgrr
expires:202608210800;;061584

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

for waters within five nautical miles of shore on lake michigan


lmz846-210800-
holland to grand haven mi-
223 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 4 to 6 feet. 
.saturday night...north winds 15 to 25 knots. mostly clear. waves
3 to 5 feet subsiding to 2 to 4 feet after midnight. 
.sunday...north winds to 30 knots backing northwest gales to
35 knots early in the afternoon. sunny. waves 4 to 6 feet. 
.monday...north winds around 10 knots backing northwest in the late
morning and afternoon. mostly sunny. waves 1 foot or less. 
.tuesday...south winds 5 to 15 knots. mostly sunny. waves 1 to
2 feet. 

$$

fzus53 kgrr 201823
nshgrr
expires:202608210800;;061586

nearshore marine forecast
national weather service grand rapids mi
223 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-
223 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 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 showers and 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 20 to 25 knots. sunny. waves 4 to 6 feet. 
.monday...northwest winds around 10 knots. sunny. waves 1 to 2 feet.
.tuesday...south winds 5 to 10 knots veering southwest early in the
afternoon. mostly sunny. waves 1 foot or less. 

$$

fzus53 kgrr 201823
nshgrr
expires:202608210800;;061582

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

for waters within five nautical miles of shore on lake michigan


lmz848-210800-
whitehall to pentwater mi-
223 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 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. 
.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 increasing to 20 to 25 knots
early in the afternoon. mostly sunny. waves 2 to 4 feet. 

$$

fzus53 kgrr 201823
nshgrr
expires:202608210800;;061581

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

for waters within five nautical miles of shore on lake michigan


lmz849-210800-
pentwater to manistee mi-
223 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 3 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 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. partly cloudy. waves
2 to 4 feet building to 3 to 5 feet in the late evening and
overnight. 
.sunday...north winds to 30 knots. sunny. waves 3 to 5 feet. 
.monday...northwest winds 10 to 15 knots. sunny. waves 1 to 2 feet. 
.tuesday...south winds 15 to 25 knots. mostly sunny. waves 2 to
4 feet. 

$$

fzus53 kgrr 201823
nshgrr
expires:202608210800;;061583

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

for waters within five nautical miles of shore on lake michigan


lmz847-210800-
grand haven to whitehall mi-
223 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 3 to 5 feet. 
.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 4 to 6 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 1 to
3 feet. 

$$

fzus53 kiwx 202029
nshiwx
expires:202608210215;;068845

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

for waters within five nautical miles of shore on lake michigan


lmz043-046-210215-
new buffalo mi to st joseph mi-michigan city in to new buffalo mi-
429 pm edt thu aug 20 2026

.tonight...north winds 10 knots or less becoming southeast.
partly cloudy. waves 1 to 2 feet subsiding to around 1 foot in the
evening.
.friday...south 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 slight 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 5 feet. 

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 201917
nshlot
expires:202608210315;;066100

nearshore marine forecast
national weather service chicago/romeoville il
217 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>742-210315-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
217 pm cdt thu aug 20 2026

.late this afternoon...northeast winds 10 to 20 kt. mostly sunny.
waves 2 to 4 ft. 
.tonight...north winds around 10 kt becoming southwest late.
partly cloudy. waves 1 to 3 ft subsiding to 1 ft or less. 
.friday...southwest winds 10 to 15 kt becoming south. slight
chance of showers and thunderstorms in the afternoon. waves 1 ft
or less building to 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 201917
nshlot
expires:202608210315;;066101

nearshore marine forecast
national weather service chicago/romeoville il
217 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>745-210315-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
217 pm cdt thu aug 20 2026

.late this afternoon...north winds 10 to 15 kt. sunny. waves 2 to
3 ft. 
.tonight...north winds 10 to 15 kt becoming south around 5 kt.
mostly clear in the evening, then becoming partly cloudy. waves
1 to 3 ft subsiding to around 1 ft. 
.friday...south winds around 5 kt becoming 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 202210
nshmkx
expires:202608210400;;073120

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

for waters within five nautical miles of shore on lake michigan


lmz643-210400-
sheboygan to port washington wi-
510 pm cdt thu aug 20 2026

.tonight...south wind 5 to 15 knots becoming 5 to 10 knots late
in the evening, then veering southwest after midnight. partly
cloudy through around midnight then becoming mostly cloudy. waves
around 1 foot. 
.friday...southwest wind 10 to 15 knots with gusts to around
20 knots becoming south 15 to 20 knots in the afternoon. chance
of showers through the day. chance of 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 with gusts to around
20 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, then slight chance of
showers after midnight. waves 2 to 4 feet subsiding to 1 to
2 feet after midnight. 
.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. 

$$

fzus53 kmkx 202210
nshmkx
expires:202608210400;;073121

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

for waters within five nautical miles of shore on lake michigan


lmz644-210400-
port washington to north point light wi-
510 pm cdt thu aug 20 2026

.tonight...south wind 5 to 10 knots veering southwest after
midnight. partly cloudy. waves around 1 foot. 
.friday...southwest wind 5 to 10 knots rising to 10 to 15 knots
late in the morning, then backing south with gusts to around
20 knots early in the afternoon becoming south 10 to 15 knots
with gusts to around 20 knots late in the afternoon. chance of
showers through the day. chance of thunderstorms in the
afternoon. waves around 1 foot. 
.friday night...southwest wind 10 to 15 knots easing to 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 late in
the afternoon. chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet. 

$$

fzus53 kmkx 202210
nshmkx
expires:202608210400;;073122

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

for waters within five nautical miles of shore on lake michigan


lmz645-210400-
north point light to wind point wi-
510 pm cdt thu aug 20 2026

.tonight...southeast wind 5 to 10 knots veering southwest after
midnight. partly cloudy. waves around 1 foot. 
.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
slight chance of thunderstorms in the afternoon. waves around
1 foot. 
.friday night...southwest wind 10 to 15 knots becoming west 5 to
10 knots after midnight, then 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 in the
afternoon. chance of showers and thunderstorms in the afternoon.
waves 1 to 2 feet. 

$$

fzus53 kmkx 202210
nshmkx
expires:202608210400;;073123

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

for waters within five nautical miles of shore on lake michigan


lmz646-210400-
wind point wi to winthrop harbor il-
510 pm cdt thu aug 20 2026

.tonight...northeast wind 5 to 10 knots becoming west late in the
evening, then becoming southwest after midnight becoming
southwest 5 to 10 knots early in the morning. partly cloudy.
waves around 1 foot. 
.friday...southwest wind 5 to 10 knots becoming 5 to 15 knots
late in the morning, then backing south 10 to 15 knots in the
afternoon. slight 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. chance of showers and
thunderstorms in the afternoon. waves 1 to 2 feet. 

$$