(1/15)
Latest Nearshore Marine Forecast by KAPX
Issued 8/19/2026 2:19 PM America/New_York.
Valid through 8/19/2026 10:30 PM America/New_York.
fzus53 kapx 191819
nshapx
expires:202608200230;;002952
nearshore marine forecast
national weather service gaylord mi
219 pm edt wed aug 19 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.
lmz346-200230-
manistee to point betsie mi-
219 pm edt wed aug 19 2026
.through early evening...west wind 5 to 10 knots. sunny. waves
2 feet or less.
.tonight...light winds. mostly clear. waves 2 feet or less.
.thursday...southwest wind 5 to 10 knots. sunny. waves 2 feet or
less.
.thursday night...south wind 5 to 10 knots. mostly cloudy. waves
2 feet or less.
.friday...south wind 10 to 15 knots. chance of showers. waves
2 to 4 feet.
see the open lakes forecast for days 3 through 5.
$$
(2/15)
Latest Nearshore Marine Forecast by KGRB
Issued 8/19/2026 3:56 PM US/Central.
Valid through 8/19/2026 11:00 PM US/Central.
fzus53 kgrb 192056
nshgrb
expires:202608200400;;011249
nearshore marine forecast
national weather service green bay wi
356 pm cdt wed aug 19 2026
for waters within five nautical miles of shore on lake michigan
lmz541>543-200400-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
356 pm cdt wed aug 19 2026
.late this afternoon...se wind 5 to 10 kts. waves 2 ft or less.
mostly sunny.
.tonight...s wind 5 to 10 kts backing e, then veering se after
midnight. waves 2 ft or less. mostly clear.
.thursday...s wind 10 to 15 kts. waves 1 to 3 ft. mostly sunny.
.thursday night...s wind 10 to 15 kts. waves 1 to 3 ft. a chance
of showers after midnight.
.friday...s wind 10 to 15 kts. waves 1 to 3 ft building to 2 to
4 ft in the afternoon. a chance of showers in the morning, then
showers likely and a chance of thunderstorms in the afternoon.
$$
(3/15)
Latest Nearshore Marine Forecast by KGRR
Issued 8/19/2026 7:16 PM America/New_York.
Valid through 8/20/2026 4:00 AM America/New_York.
fzus53 kgrr 192316
nshgrr
expires:202608200800;;017204
nearshore marine forecast
national weather service grand rapids mi
716 pm edt wed aug 19 2026
for waters within five nautical miles of shore on lake michigan
lmz849-200800-
pentwater to manistee mi-
716 pm edt wed aug 19 2026
.through early evening...north winds around 10 knots. mostly sunny.
waves 1 foot or less.
.tonight...north winds 5 to 10 knots veering east in the late
evening and overnight. clear. waves 1 foot or less.
.thursday...east winds 5 to 10 knots veering southwest in the late
morning and early afternoon, then veering west early in the
afternoon. sunny. waves less than 1 foot.
.thursday night...southwest winds 5 to 15 knots backing south in the
late evening and overnight. partly cloudy. waves around 1 foot.
.friday...south winds 15 to 25 knots. partly sunny with a 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 west after
midnight. partly cloudy with a chance of rain showers. waves 3 to
5 feet subsiding to 2 to 4 feet after midnight.
.saturday...northwest winds 10 to 20 knots. mostly sunny. waves 1 to
3 feet.
.sunday...north winds 15 to 25 knots. sunny. waves 3 to 5 feet.
.monday...north winds 5 to 15 knots backing northwest early in the
afternoon. mostly sunny. waves 1 to 2 feet.
$$
(4/15)
Latest Nearshore Marine Forecast by KGRR
Issued 8/19/2026 7:16 PM America/New_York.
Valid through 8/20/2026 4:00 AM America/New_York.
fzus53 kgrr 192316
nshgrr
expires:202608200800;;017209
nearshore marine forecast
national weather service grand rapids mi
716 pm edt wed aug 19 2026
for waters within five nautical miles of shore on lake michigan
lmz844-200800-
st joseph to south haven mi-
716 pm edt wed aug 19 2026
.through early evening...north winds 5 to 15 knots. mostly sunny.
waves 1 to 2 feet.
.tonight...northeast winds 10 to 15 knots. partly cloudy. waves 1 to
2 feet.
.thursday...northeast winds 10 to 15 knots backing north early in
the afternoon. sunny. waves around 1 foot.
.thursday night...north winds 5 to 15 knots veering southeast after
midnight. mostly clear. waves 1 foot or less.
.friday...south winds around 10 knots veering southwest early in the
afternoon. mostly sunny. waves 1 foot or less.
.friday night...southwest winds 10 to 15 knots. partly cloudy with a
chance of rain showers. waves 1 to 3 feet.
.saturday...northwest winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet.
.sunday...north winds 10 to 20 knots. sunny. waves 3 to 5 feet.
.monday...northeast winds 5 to 10 knots backing northwest early in
the afternoon. mostly sunny. waves 1 to 2 feet.
$$
(5/15)
Latest Nearshore Marine Forecast by KGRR
Issued 8/19/2026 7:16 PM America/New_York.
Valid through 8/20/2026 4:00 AM America/New_York.
fzus53 kgrr 192316
nshgrr
expires:202608200800;;017208
nearshore marine forecast
national weather service grand rapids mi
716 pm edt wed aug 19 2026
for waters within five nautical miles of shore on lake michigan
lmz845-200800-
south haven to holland mi-
716 pm edt wed aug 19 2026
.through early evening...north winds 10 to 15 knots. mostly sunny.
waves around 1 foot.
.tonight...north winds 10 to 15 knots veering northeast after
midnight. partly cloudy. waves 1 to 2 feet.
.thursday...northeast winds 10 to 15 knots backing north early in
the afternoon. sunny. waves 1 foot or less.
.thursday night...north winds 5 to 15 knots veering southeast after
midnight. mostly clear. waves 1 foot or less.
.friday...south winds 10 to 15 knots veering southwest early in the
afternoon. mostly sunny. waves around 1 foot.
.friday night...southwest winds 10 to 15 knots. partly cloudy with a
chance of rain showers. waves 1 to 3 feet.
.saturday...northwest winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet.
.sunday...north winds 10 to 20 knots backing northwest 20 to
25 knots early in the afternoon. sunny. waves 3 to 5 feet.
.monday...northeast winds around 10 knots backing northwest early in
the afternoon. mostly sunny. waves around 1 foot.
$$
(6/15)
Latest Nearshore Marine Forecast by KGRR
Issued 8/19/2026 7:16 PM America/New_York.
Valid through 8/20/2026 4:00 AM America/New_York.
fzus53 kgrr 192316
nshgrr
expires:202608200800;;017207
nearshore marine forecast
national weather service grand rapids mi
716 pm edt wed aug 19 2026
for waters within five nautical miles of shore on lake michigan
lmz846-200800-
holland to grand haven mi-
716 pm edt wed aug 19 2026
.through early evening...northwest winds 10 to 20 knots. partly
sunny. waves around 1 foot.
.tonight...north winds 10 to 20 knots veering northeast after
midnight. partly cloudy. waves 1 to 2 feet.
.thursday...northeast winds 5 to 15 knots backing northwest early in
the afternoon. sunny. waves 1 foot or less.
.thursday night...northwest winds 5 to 15 knots veering southeast
after midnight. mostly clear. waves 1 foot or less.
.friday...south winds 10 to 20 knots veering southwest early in the
afternoon. mostly sunny. waves 1 to 3 feet.
.friday night...southwest winds 10 to 15 knots becoming around
15 knots after midnight. partly cloudy with a chance of rain
showers. waves 1 to 3 feet.
.saturday...northwest winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet.
.sunday...north winds 10 to 15 knots becoming northwest to 30 knots
in the late morning and afternoon. sunny. waves 3 to 5 feet.
.monday...northeast winds around 10 knots backing northwest early in
the afternoon. mostly sunny. waves around 1 foot.
$$
(7/15)
Latest Nearshore Marine Forecast by KGRR
Issued 8/19/2026 7:16 PM America/New_York.
Valid through 8/20/2026 4:00 AM America/New_York.
fzus53 kgrr 192316
nshgrr
expires:202608200800;;017206
nearshore marine forecast
national weather service grand rapids mi
716 pm edt wed aug 19 2026
for waters within five nautical miles of shore on lake michigan
lmz847-200800-
grand haven to whitehall mi-
716 pm edt wed aug 19 2026
.through early evening...northwest winds 10 to 20 knots. partly
sunny. waves around 1 foot.
.tonight...north winds 10 to 20 knots veering northeast in the late
evening and overnight. mostly clear. waves 1 to 2 feet.
.thursday...northeast winds 5 to 15 knots backing northwest early in
the afternoon. sunny. waves 1 foot or less.
.thursday night...northwest winds 5 to 15 knots veering east in the
late evening and early morning, then veering southeast after
midnight. partly cloudy. waves 1 foot or less.
.friday...south winds 15 to 20 knots. partly 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.
.friday night...southwest winds 15 to 20 knots veering west after
midnight. partly cloudy with a chance of rain showers. waves 2 to
4 feet.
.saturday...northwest winds 15 to 25 knots. mostly sunny. waves 2 to
4 feet.
.sunday...north winds 15 to 25 knots backing northwest to 30 knots
early in the afternoon. sunny. waves 3 to 5 feet.
.monday...northeast winds around 10 knots backing northwest early in
the afternoon. mostly sunny. waves around 1 foot.
$$
(8/15)
Latest Nearshore Marine Forecast by KGRR
Issued 8/19/2026 7:16 PM America/New_York.
Valid through 8/20/2026 4:00 AM America/New_York.
fzus53 kgrr 192316
nshgrr
expires:202608200800;;017205
nearshore marine forecast
national weather service grand rapids mi
716 pm edt wed aug 19 2026
for waters within five nautical miles of shore on lake michigan
lmz848-200800-
whitehall to pentwater mi-
716 pm edt wed aug 19 2026
.through early evening...north winds 10 to 15 knots. mostly sunny.
waves 1 foot or less.
.tonight...north winds 10 to 15 knots veering northeast 5 to
10 knots in the late evening and overnight. mostly clear. waves
1 foot or less.
.thursday...east winds 5 to 10 knots veering south in the late
morning and early afternoon, then veering west early in the
afternoon. sunny. waves less than 1 foot.
.thursday night...southwest winds 5 to 15 knots backing southeast in
the late evening and overnight. partly cloudy. waves around 1 foot.
.friday...south winds 15 to 20 knots. partly sunny with a slight
chance of rain showers. waves 1 to 3 feet building to 3 to 5 feet in
the late morning and afternoon.
.friday night...south winds 10 to 20 knots veering west after
midnight. partly cloudy with a chance of rain showers. waves 3 to
5 feet subsiding to 2 to 4 feet after midnight.
.saturday...northwest winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet.
.sunday...north winds 15 to 25 knots backing northwest to 30 knots
early in the afternoon. sunny. waves 3 to 5 feet.
.monday...northeast winds around 10 knots backing northwest early in
the afternoon. sunny. waves 1 to 2 feet.
$$
(9/15)
Latest Nearshore Marine Forecast by KIWX
Issued 8/19/2026 3:39 PM America/New_York.
Valid through 8/19/2026 10:15 PM America/New_York.
fzus53 kiwx 191939
nshiwx
expires:202608200215;;008228
nearshore marine forecast
national weather service northern indiana
339 pm edt wed aug 19 2026
for waters within five nautical miles of shore on lake michigan
lmz043-046-200215-
new buffalo mi to st joseph mi-michigan city in to new buffalo mi-
339 pm edt wed aug 19 2026
.tonight...north winds 5 to 10 knots becoming northeast. mostly
cloudy this evening, then becoming partly cloudy. waves 1 to
2 feet.
.thursday...northeast winds 10 knots or less becoming north.
sunny. waves 1 foot or less.
.thursday night...north winds less than 10 knots. mostly clear.
waves 1 foot or less.
.friday...southeast winds 10 knots or less becoming southwest. a
slight chance of showers and thunderstorms in the afternoon.
waves 1 foot or less.
winds and waves higher in and near thunderstorms.
the water temperature at st. joseph is 72 degrees and at michigan
city is 69 degrees.
$$
(10/15)
Latest Nearshore Marine Forecast by KLOT
Issued 8/19/2026 3:14 PM US/Central.
Valid through 8/19/2026 10:15 PM US/Central.
fzus53 klot 192014
nshlot
expires:202608200315;;010173
nearshore marine forecast
national weather service chicago/romeoville il
314 pm cdt wed aug 19 2026
for waters within five nautical miles of shore on lake michigan
waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.
lmz743>745-200315-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
314 pm cdt wed aug 19 2026
.tonight...northeast winds 10 to 15 kt. mostly cloudy in the
evening, then becoming partly cloudy. waves 1 to 2 ft.
.thursday...northeast winds around 10 kt. sunny. waves 1 to 2 ft.
.thursday night...northeast winds around 10 kt becoming southeast
overnight. mostly clear in the evening, then becoming partly
cloudy. waves 1 ft or less.
.friday...south winds around 10 kt becoming southwest. slight
chance of showers and thunderstorms in the afternoon. waves
around 1 ft.
$$
(11/15)
Latest Nearshore Marine Forecast by KLOT
Issued 8/19/2026 3:14 PM US/Central.
Valid through 8/19/2026 10:15 PM US/Central.
fzus53 klot 192014
nshlot
expires:202608200315;;010172
nearshore marine forecast
national weather service chicago/romeoville il
314 pm cdt wed aug 19 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>742-200315-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
314 pm cdt wed aug 19 2026
.tonight...northeast winds 10 to 15 kt. mostly cloudy in the
evening then clearing. waves 1 to 2 ft.
.thursday...northeast winds around 10 kt. sunny. waves 1 to 2 ft.
.thursday night...east winds around 10 kt becoming south
overnight. mostly clear in the evening, then becoming partly
cloudy. waves around 1 ft.
.friday...southwest winds 10 to 15 kt. chance of showers and
thunderstorms in the afternoon. waves 1 to 2 ft.
$$
(12/15)
Latest Nearshore Marine Forecast by KMKX
Issued 8/19/2026 5:10 PM US/Central.
Valid through 8/19/2026 11:00 PM US/Central.
fzus53 kmkx 192210
nshmkx
expires:202608200400;;014476
nearshore marine forecast
national weather service milwaukee/sullivan wi
510 pm cdt wed aug 19 2026
for waters within five nautical miles of shore on lake michigan
lmz646-200400-
wind point wi to winthrop harbor il-
510 pm cdt wed aug 19 2026
.tonight...northeast wind 5 to 10 knots backing north early in
the morning. partly cloudy. waves around 1 foot.
.thursday...north wind 5 to 10 knots veering southeast late in
the afternoon. sunny. waves around 1 foot.
.thursday night...southeast wind 5 to 10 knots veering southwest
early in the morning. partly cloudy. waves around 1 foot.
.friday...southwest wind 5 to 10 knots rising to 10 to 15 knots
in the late morning and afternoon. slight chance of showers in
the morning, then showers likely and a chance of thunderstorms in
the afternoon. waves around 1 foot.
$$
(13/15)
Latest Nearshore Marine Forecast by KMKX
Issued 8/19/2026 5:10 PM US/Central.
Valid through 8/19/2026 11:00 PM US/Central.
fzus53 kmkx 192210
nshmkx
expires:202608200400;;014473
nearshore marine forecast
national weather service milwaukee/sullivan wi
510 pm cdt wed aug 19 2026
for waters within five nautical miles of shore on lake michigan
lmz643-200400-
sheboygan to port washington wi-
510 pm cdt wed aug 19 2026
.tonight...east wind 5 to 10 knots veering southeast late in the
evening, then veering west after midnight veering northwest early
in the morning. mostly clear. waves around 1 foot.
.thursday...northwest wind 5 knots becoming southwest late in the
morning, then backing south 5 to 15 knots early in the afternoon
becoming 10 to 15 knots late in the afternoon. sunny. waves
around 1 foot.
.thursday night...south wind 10 to 15 knots veering southwest
after midnight. slight chance of showers after midnight. waves
1 to 2 feet.
.friday...southwest wind 10 to 15 knots with gusts to around
20 knots becoming south 15 to 20 knots early in the afternoon,
then easing to 10 to 15 knots with gusts to around 20 knots late
in the afternoon. chance of showers in the morning, then showers
likely and a chance of thunderstorms in the afternoon. waves 1 to
2 feet building to 2 to 4 feet late in the afternoon.
$$
(14/15)
Latest Nearshore Marine Forecast by KMKX
Issued 8/19/2026 5:10 PM US/Central.
Valid through 8/19/2026 11:00 PM US/Central.
fzus53 kmkx 192210
nshmkx
expires:202608200400;;014474
nearshore marine forecast
national weather service milwaukee/sullivan wi
510 pm cdt wed aug 19 2026
for waters within five nautical miles of shore on lake michigan
lmz644-200400-
port washington to north point light wi-
510 pm cdt wed aug 19 2026
.tonight...east wind 5 to 10 knots backing northwest after
midnight, then easing to 5 knots early in the morning. mostly
clear. waves around 1 foot.
.thursday...northwest wind 5 knots veering north late in the
morning, then becoming southeast early in the afternoon becoming
southeast 5 to 10 knots late in the afternoon. sunny. waves
around 1 foot.
.thursday night...south wind 10 to 15 knots becoming southwest
5 to 10 knots after midnight. partly cloudy. waves around 1 foot.
.friday...southwest wind 10 to 15 knots backing south early in
the afternoon, then veering southwest late in the afternoon.
chance of showers in the morning, then showers likely and a
chance of thunderstorms in the afternoon. waves around 1 foot.
$$
(15/15)
Latest Nearshore Marine Forecast by KMKX
Issued 8/19/2026 5:10 PM US/Central.
Valid through 8/19/2026 11:00 PM US/Central.
fzus53 kmkx 192210
nshmkx
expires:202608200400;;014475
nearshore marine forecast
national weather service milwaukee/sullivan wi
510 pm cdt wed aug 19 2026
for waters within five nautical miles of shore on lake michigan
lmz645-200400-
north point light to wind point wi-
510 pm cdt wed aug 19 2026
.tonight...northeast wind 5 to 10 knots backing north early in
the morning. partly cloudy. waves around 1 foot.
.thursday...north wind 5 to 10 knots veering southeast late in
the afternoon. sunny. waves around 1 foot.
.thursday night...south wind 5 to 10 knots veering southwest
early in the morning. partly cloudy. waves around 1 foot.
.friday...southwest wind 10 to 15 knots. chance of showers in the
morning, then showers likely and a chance of thunderstorms in the
afternoon. waves around 1 foot.
$$
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