(1/17)
Latest Nearshore Marine Forecast by KAPX
Issued 8/23/2026 2:05 PM America/New_York.
Valid through 8/23/2026 10:15 PM America/New_York.
fzus53 kapx 231805
nshapx
expires:202608240215;;235409
nearshore marine forecast
national weather service gaylord mi
205 pm edt sun aug 23 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.
lmz346-240215-
manistee to point betsie mi-
205 pm edt sun aug 23 2026
...small craft advisory in effect until 1 am edt monday...
.through early evening...northwest wind 15 to 25 knots with gusts
to 30 knots. slight
chance of waterspouts. isolated showers. waves 3 to 5 feet.
.tonight...north wind 10 to 20 knots with gusts
to 25 knots. mostly clear. waves 3 to 5 feet.
.monday...northwest wind 10 to 15 knots. sunny. waves 2 to
4 feet.
.monday night...light winds. mostly clear. waves 2 feet or less.
.tuesday...southwest wind 5 to 10 knots. sunny. waves 2 feet or
less.
see the open lakes forecast for days 3 through 5.
$$
(2/17)
Latest Nearshore Marine Forecast by KGRB
Issued 8/23/2026 5:58 PM US/Central.
Valid through 8/23/2026 11:00 PM US/Central.
fzus53 kgrb 232258
nshgrb
expires:202608240400;;248889
nearshore marine forecast
national weather service green bay wi
558 pm cdt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
lmz541>543-240400-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
558 pm cdt sun aug 23 2026
.late this afternoon...n wind 10 to 20 kts. waves 1 to 3 ft.
partly cloudy.
.tonight...n wind 10 to 20 kts. waves 1 to 3 ft. partly cloudy in
the evening then clearing.
.monday...nw wind 10 to 15 kts veering n 5 to 10 kts early in the
afternoon. waves 2 ft or less. mostly sunny.
.monday night...e wind 5 to 10 kts veering sw after midnight.
waves 2 ft or less. partly cloudy.
.tuesday...s wind 10 to 15 kts. waves 2 ft or less building to
2 to 4 ft in the afternoon. mostly sunny.
$$
(3/17)
Latest Nearshore Marine Forecast by KGRR
Issued 8/23/2026 3:36 PM America/New_York.
Valid through 8/24/2026 4:00 AM America/New_York.
fzus53 kgrr 231936
nshgrr
expires:202608240800;;241022
nearshore marine forecast
national weather service grand rapids mi
336 pm edt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
lmz846-240800-
holland to grand haven mi-
336 pm edt sun aug 23 2026
...small craft advisory in effect until 11 pm edt this evening...
.through early evening...northwest winds 20 to 25 knots. mostly
sunny. waves 5 to 7 feet.
.tonight...north 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...northwest winds 10 to 20 knots. sunny. waves 1 to 3 feet
building to 2 to 4 feet in the late morning and afternoon.
.monday night...northwest winds 10 to 20 knots becoming north around
5 knots after midnight. partly cloudy. waves 2 to 4 feet subsiding
to 1 to 3 feet in the late evening and overnight.
.tuesday...east winds 5 to 10 knots veering southwest in the late
morning and afternoon. sunny. waves 1 foot or less.
.tuesday night...south winds 10 to 20 knots. partly cloudy. waves
1 to 2 feet building to 2 to 4 feet after midnight.
.wednesday...south winds 15 to 25 knots. partly sunny with rain
showers likely and a chance of thunderstorms. waves 4 to 6 feet.
.thursday...northwest winds 15 to 20 knots. sunny. waves 3 to
5 feet.
.friday...north winds around 10 knots backing northwest early in the
afternoon. sunny. waves 1 foot or less.
$$
(4/17)
Latest Nearshore Marine Forecast by KGRR
Issued 8/23/2026 3:36 PM America/New_York.
Valid through 8/24/2026 4:00 AM America/New_York.
fzus53 kgrr 231936
nshgrr
expires:202608240800;;241024
nearshore marine forecast
national weather service grand rapids mi
336 pm edt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
lmz844-240800-
st joseph to south haven mi-
336 pm edt sun aug 23 2026
...small craft advisory in effect until 11 pm edt this evening...
.through early evening...northwest winds 15 to 25 knots. sunny.
waves 5 to 7 feet.
.tonight...north winds 10 to 20 knots decreasing to 5 to 10 knots in
the late evening and overnight. mostly clear. waves 3 to 5 feet
subsiding to 2 to 4 feet after midnight.
.monday...northwest winds 5 to 15 knots. sunny. waves 1 to 3 feet
building to 2 to 4 feet early in the afternoon.
.monday night...northwest winds 5 to 15 knots. partly cloudy. waves
2 to 4 feet.
.tuesday...northwest winds around 5 knots backing southwest in the
late morning and afternoon. sunny. waves 1 foot or less.
.tuesday night...south winds 5 to 15 knots. partly cloudy. waves
around 1 foot.
.wednesday...south winds 15 to 20 knots. partly sunny. waves 1 to
3 feet.
.thursday...northwest winds 10 to 20 knots. sunny. waves 2 to
4 feet.
.friday...north winds around 10 knots. sunny. waves around 1 foot.
$$
(5/17)
Latest Nearshore Marine Forecast by KGRR
Issued 8/23/2026 3:36 PM America/New_York.
Valid through 8/24/2026 4:00 AM America/New_York.
fzus53 kgrr 231936
nshgrr
expires:202608240800;;241023
nearshore marine forecast
national weather service grand rapids mi
336 pm edt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
lmz845-240800-
south haven to holland mi-
336 pm edt sun aug 23 2026
...small craft advisory in effect until 11 pm edt this evening...
.through early evening...northwest winds 20 to 25 knots. sunny.
waves 5 to 7 feet.
.tonight...north winds 10 to 20 knots. mostly clear. waves 4 to
6 feet subsiding to 1 to 3 feet after midnight.
.monday...northwest winds 10 to 20 knots. sunny. waves 1 to 2 feet
building to 2 to 4 feet in the late morning and afternoon.
.monday night...north winds 5 to 15 knots. partly cloudy. waves 2 to
4 feet subsiding to 1 to 3 feet in the late evening and overnight.
.tuesday...east winds around 5 knots veering south in the late
morning and early afternoon, then veering west early in the
afternoon. sunny. waves 1 foot or less.
.tuesday night...south winds 10 to 20 knots. partly cloudy. waves
1 to 2 feet.
.wednesday...south winds 15 to 25 knots. partly sunny with rain
showers likely and a chance of thunderstorms. waves 3 to 5 feet.
.thursday...northwest winds 15 to 20 knots. sunny. waves 2 to
4 feet.
.friday...north winds around 10 knots backing northwest early in the
afternoon. sunny. waves around 1 foot.
$$
(6/17)
Latest Nearshore Marine Forecast by KGRR
Issued 8/23/2026 3:36 PM America/New_York.
Valid through 8/24/2026 4:00 AM America/New_York.
fzus53 kgrr 231936
nshgrr
expires:202608240800;;241021
nearshore marine forecast
national weather service grand rapids mi
336 pm edt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
lmz847-240800-
grand haven to whitehall mi-
336 pm edt sun aug 23 2026
...small craft advisory in effect until 11 pm edt this evening...
.through early evening...northwest winds to 30 knots. mostly sunny.
waves 5 to 7 feet.
.tonight...north winds 15 to 25 knots decreasing to 10 to 15 knots
in the late evening and overnight. mostly clear. waves 3 to 5 feet
subsiding to 2 to 4 feet in the late evening and overnight.
.monday...northwest winds 10 to 20 knots. sunny. waves 2 to 4 feet.
.monday night...northwest winds 10 to 20 knots veering north 5 to
10 knots in the late evening and early morning, then veering
northeast after midnight. partly cloudy. waves 2 to 4 feet subsiding
to 1 to 2 feet in the late evening and overnight.
.tuesday...east winds 5 to 10 knots veering southwest 10 to 15 knots
in the late morning and afternoon. sunny. waves around 1 foot.
.tuesday night...south winds 15 to 25 knots. partly cloudy. waves
1 to 3 feet building to 3 to 5 feet after midnight.
.wednesday...south winds 20 to 25 knots. partly sunny with a chance
of showers and thunderstorms. waves 4 to 6 feet.
.thursday...northwest winds 15 to 20 knots. sunny. waves 3 to
5 feet.
.friday...north winds 10 to 15 knots backing northwest early in the
afternoon. sunny. waves around 1 foot.
$$
(7/17)
Latest Nearshore Marine Forecast by KGRR
Issued 8/23/2026 3:36 PM America/New_York.
Valid through 8/24/2026 4:00 AM America/New_York.
fzus53 kgrr 231936
nshgrr
expires:202608240800;;241020
nearshore marine forecast
national weather service grand rapids mi
336 pm edt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
lmz848-240800-
whitehall to pentwater mi-
336 pm edt sun aug 23 2026
...small craft advisory in effect until 11 pm edt this evening...
.through early evening...northwest winds 20 to 25 knots. mostly
sunny. waves 4 to 6 feet.
.tonight...north winds 15 to 25 knots. mostly clear. waves 3 to
5 feet.
.monday...northwest winds 15 to 20 knots. sunny. waves 2 to 4 feet.
.monday night...north winds 5 to 15 knots veering northeast around
5 knots after midnight. partly cloudy. waves 1 to 3 feet.
.tuesday...southeast winds 5 to 10 knots veering southwest 10 to
15 knots in the late morning and afternoon. sunny. waves 1 to
2 feet.
.tuesday night...south winds 15 to 20 knots. partly cloudy. waves
2 to 4 feet building to 3 to 5 feet after midnight.
.wednesday...south winds 20 to 25 knots. rain showers likely and a
chance of thunderstorms. waves 5 to 7 feet.
.thursday...northwest winds 10 to 20 knots. sunny. waves 2 to
4 feet.
.friday...north winds 10 to 15 knots. sunny. waves around 1 foot.
$$
(8/17)
Latest Nearshore Marine Forecast by KGRR
Issued 8/23/2026 3:36 PM America/New_York.
Valid through 8/24/2026 4:00 AM America/New_York.
fzus53 kgrr 231936
nshgrr
expires:202608240800;;241019
nearshore marine forecast
national weather service grand rapids mi
336 pm edt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
lmz849-240800-
pentwater to manistee mi-
336 pm edt sun aug 23 2026
...small craft advisory in effect until 11 pm edt this evening...
.through early evening...northwest winds 20 to 25 knots. mostly
sunny. waves 4 to 6 feet.
.tonight...north winds 15 to 25 knots. mostly clear. waves 3 to
5 feet.
.monday...northwest winds 10 to 20 knots. sunny. waves 3 to 5 feet.
.monday night...north winds 5 to 15 knots veering east around
5 knots after midnight. partly cloudy. waves 1 to 3 feet.
.tuesday...southeast winds 5 to 10 knots veering southwest 10 to
20 knots in the late morning and afternoon. sunny. waves 1 to
2 feet.
.tuesday night...south winds 10 to 20 knots. partly cloudy. waves
2 to 4 feet building to 3 to 5 feet after midnight.
.wednesday...south winds to 30 knots. rain showers likely and a
chance of thunderstorms. waves 5 to 7 feet.
.thursday...northwest winds 10 to 20 knots. mostly sunny. waves 2 to
4 feet.
.friday...north winds 5 to 15 knots. sunny. waves around 1 foot.
$$
(9/17)
Latest Nearshore Marine Forecast by KIWX
Issued 8/23/2026 3:38 PM America/New_York.
Valid through 8/23/2026 10:15 PM America/New_York.
fzus53 kiwx 231938
nshiwx
expires:202608240215;;241030
nearshore marine forecast
national weather service northern indiana
338 pm edt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
lmz046-240215-
michigan city in to new buffalo mi-
338 pm edt sun aug 23 2026
...small craft advisory in effect until 11 pm edt this evening...
.tonight...northwesterly winds 10 to 15 knots decreasing to 10 knots
or less. mostly clear. waves 2 to 4 feet.
.monday...northwest winds 10 knots or less becoming north. sunny.
waves around 2 feet.
.monday night...north winds 5 to 10 knots becoming light and
variable. mostly clear. waves 1 to 2 feet.
.tuesday...light and variable winds. sunny. waves 1 foot or less.
the water temperature at michigan city is 73 degrees.
$$
(10/17)
Latest Nearshore Marine Forecast by KIWX
Issued 8/23/2026 3:38 PM America/New_York.
Valid through 8/23/2026 10:15 PM America/New_York.
fzus53 kiwx 231938
nshiwx
expires:202608240215;;241031
nearshore marine forecast
national weather service northern indiana
338 pm edt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
lmz043-240215-
new buffalo mi to st joseph mi-
338 pm edt sun aug 23 2026
...small craft advisory in effect until 11 pm edt this evening...
.tonight...northwesterly winds 10 to 15 knots decreasing to less than
10 knots. mostly clear. waves 3 to 5 feet subsiding to 2 to 3 feet.
.monday...northwest winds 10 knots or less. sunny. waves 2 to
3 feet.
.monday night...north winds 5 to 10 knots becoming light and
variable. mostly clear. waves 1 to 3 feet.
.tuesday...light and variable winds. sunny. waves 1 foot or less.
the water temperature at michigan city is 73 degrees.
$$
(11/17)
Latest Nearshore Marine Forecast by KLOT
Issued 8/23/2026 2:58 PM US/Central.
Valid through 8/23/2026 10:15 PM US/Central.
fzus53 klot 231958
nshlot
expires:202608240315;;241425
nearshore marine forecast
national weather service chicago/romeoville il
258 pm cdt sun aug 23 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.
lmz740-240315-
winthrop harbor to wilmette harbor il-
258 pm cdt sun aug 23 2026
.late this afternoon...northwest winds 10 to 20 kt. partly
cloudy. waves 2 to 4 ft.
.tonight...northwest winds 10 to 15 kt. mostly clear. waves 2 to
4 ft subsiding to 1 to 3 ft.
.monday...northwest winds around 5 kt becoming northeast around 10
kt late. mostly sunny. waves 1 to 3 ft.
.monday night...east winds around 10 kt becoming southwest less
than 10 kt overnight. partly cloudy in the evening then clearing.
waves 1 to 2 ft.
.tuesday...southwest winds less than 10 kt becoming southeast
10 to 15 kt in the afternoon. mostly sunny in the morning, then
becoming partly cloudy. waves 1 to 2 ft.
$$
(12/17)
Latest Nearshore Marine Forecast by KLOT
Issued 8/23/2026 2:58 PM US/Central.
Valid through 8/23/2026 10:15 PM US/Central.
fzus53 klot 231958
nshlot
expires:202608240315;;241426
nearshore marine forecast
national weather service chicago/romeoville il
258 pm cdt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.
lmz741>743-240315-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
calumet harbor il to gary in-
258 pm cdt sun aug 23 2026
.late this afternoon...northeast winds 10 to 15 kt. partly
cloudy. waves 2 to 4 ft.
.tonight...northeast winds around 10 kt becoming northwest late.
mostly clear. waves 2 to 4 ft subsiding to 1 to 3 ft.
.monday...west winds around 5 kt becoming northeast late. mostly
sunny in the morning, then becoming partly cloudy. waves 1 to
3 ft.
.monday night...east winds around 10 kt becoming southwest less
than 10 kt overnight. partly cloudy in the evening then clearing.
waves 1 to 2 ft.
.tuesday...south winds less than 10 kt becoming southeast around
10 kt in the afternoon. mostly sunny. waves around 1 ft.
$$
(13/17)
Latest Nearshore Marine Forecast by KLOT
Issued 8/23/2026 2:58 PM US/Central.
Valid through 8/23/2026 10:15 PM US/Central.
fzus53 klot 231958
nshlot
expires:202608240315;;241427
nearshore marine forecast
national weather service chicago/romeoville il
258 pm cdt sun aug 23 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.
lmz744-745-240315-
gary to burns harbor in-burns harbor to michigan city in-
258 pm cdt sun aug 23 2026
.late this afternoon...northeast winds 10 to 20 kt. mostly sunny.
waves 3 to 5 ft.
.tonight...north winds around 10 kt becoming northwest late.
mostly clear. waves 3 to 5 ft subsiding to 2 to 4 ft.
.monday...west winds around 5 kt becoming north late. mostly
sunny. waves 1 to 3 ft.
.monday night...northeast winds around 10 kt becoming south less
than 10 kt overnight. partly cloudy in the evening then clearing.
waves 1 to 2 ft.
.tuesday...south winds less than 10 kt becoming southeast in the
afternoon. mostly sunny. waves around 1 ft.
$$
(14/17)
Latest Nearshore Marine Forecast by KMKX
Issued 8/23/2026 7:10 PM US/Central.
Valid through 8/23/2026 11:00 PM US/Central.
fzus53 kmkx 240010
nshmkx
expires:202608240400;;252264
nearshore marine forecast
national weather service milwaukee/sullivan wi
710 pm cdt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
lmz644-240400-
port washington to north point light wi-
710 pm cdt sun aug 23 2026
.tonight...northwest wind 5 to 10 knots veering north in the late
evening and early morning, then backing northwest early in the
morning. mostly clear. waves 1 to 2 feet.
.monday...northwest wind 5 to 10 knots rising to 10 to 15 knots
late in the morning, then becoming north 5 to 10 knots in the
afternoon. sunny. waves 1 to 2 feet.
.monday night...east wind 5 to 10 knots veering southwest late in
the evening, then veering west after midnight becoming west 5 to
10 knots early in the morning. mostly clear. waves around 1 foot.
.tuesday...west wind 5 to 10 knots backing southwest late in the
morning, then becoming south 10 to 15 knots early in the
afternoon becoming south 10 to 15 knots with gusts to around
20 knots late in the afternoon. mostly sunny. waves around
1 foot.
$$
(15/17)
Latest Nearshore Marine Forecast by KMKX
Issued 8/23/2026 7:10 PM US/Central.
Valid through 8/23/2026 11:00 PM US/Central.
fzus53 kmkx 240010
nshmkx
expires:202608240400;;252263
nearshore marine forecast
national weather service milwaukee/sullivan wi
710 pm cdt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
lmz643-240400-
sheboygan to port washington wi-
710 pm cdt sun aug 23 2026
.tonight...north wind 10 to 15 knots backing northwest early in
the morning. mostly clear. waves 1 to 2 feet.
.monday...northwest wind 10 to 15 knots becoming north 5 to
10 knots early in the afternoon, then veering northeast late in
the afternoon. sunny. waves around 1 foot.
.monday night...southeast wind 5 to 10 knots veering west early
in the morning. mostly clear. waves around 1 foot.
.tuesday...west wind 5 to 10 knots backing southwest late in the
morning, then becoming south 10 to 15 knots early in the
afternoon rising to 15 to 20 knots late in the afternoon. mostly
sunny. waves around 1 foot building to 2 to 4 feet late in the
afternoon.
$$
(16/17)
Latest Nearshore Marine Forecast by KMKX
Issued 8/23/2026 7:10 PM US/Central.
Valid through 8/23/2026 11:00 PM US/Central.
fzus53 kmkx 240010
nshmkx
expires:202608240400;;252266
nearshore marine forecast
national weather service milwaukee/sullivan wi
710 pm cdt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
lmz646-240400-
wind point wi to winthrop harbor il-
710 pm cdt sun aug 23 2026
.tonight...northwest wind 5 to 10 knots. mostly clear. waves 1 to
2 feet.
.monday...northwest wind 5 to 10 knots veering northeast late in
the afternoon. sunny. waves 1 to 2 feet.
.monday night...east wind 5 to 10 knots veering south late in the
evening, then veering southwest after midnight veering west early
in the morning. mostly clear. waves around 1 foot.
.tuesday...west wind 5 to 10 knots backing southwest late in the
morning, then becoming south 10 to 15 knots in the afternoon.
sunny. waves around 1 foot.
$$
(17/17)
Latest Nearshore Marine Forecast by KMKX
Issued 8/23/2026 7:10 PM US/Central.
Valid through 8/23/2026 11:00 PM US/Central.
fzus53 kmkx 240010
nshmkx
expires:202608240400;;252265
nearshore marine forecast
national weather service milwaukee/sullivan wi
710 pm cdt sun aug 23 2026
for waters within five nautical miles of shore on lake michigan
lmz645-240400-
north point light to wind point wi-
710 pm cdt sun aug 23 2026
.tonight...north wind 5 to 10 knots backing northwest after
midnight. mostly clear. waves 1 to 2 feet.
.monday...northwest wind 5 to 10 knots rising to 10 to 15 knots
late in the morning, then becoming north 5 to 10 knots early in
the afternoon veering northeast late in the afternoon. sunny.
waves 1 to 2 feet.
.monday night...east wind 5 to 10 knots veering southwest late in
the evening, then becoming southwest 5 to 10 knots after midnight
veering west early in the morning. mostly clear. waves around
1 foot.
.tuesday...west wind 5 to 10 knots backing southwest late in the
morning, then becoming south 10 to 15 knots with gusts to around
20 knots in the afternoon. mostly sunny. waves around 1 foot.
$$
|