(1/16)
Latest Nearshore Marine Forecast by KAPX
Issued 7/31/2026 3:28 AM America/New_York.
Valid through 7/31/2026 11:30 AM America/New_York.
fzus53 kapx 310728
nshapx
expires:202607311530;;377301
nearshore marine forecast
national weather service gaylord mi
328 am edt fri jul 31 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.
lmz346-311530-
manistee to point betsie mi-
328 am edt fri jul 31 2026
.today...southwest wind 5 to 10 knots. mostly cloudy. waves
2 feet or less.
.tonight...northeast wind 5 to 10 knots. chance of showers. waves
2 feet or less.
.saturday...northeast wind 5 to 10 knots. showers likely. waves
2 feet or less.
.saturday night...northeast wind 10 to 15 knots. mostly cloudy.
waves 2 feet or less.
see the open lakes forecast for days 3 through 5.
$$
(2/16)
Latest Nearshore Marine Forecast by KGRB
Issued 7/31/2026 9:19 AM US/Central.
Valid through 7/31/2026 5:00 PM US/Central.
fzus53 kgrb 311419
nshgrb
expires:202607312200;;391952
nearshore marine forecast
national weather service green bay wi
919 am cdt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
lmz541>543-312200-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
919 am cdt fri jul 31 2026
.this afternoon...sw wind 5 to 10 kts. waves 2 ft or less. patchy
smoke early in the morning. a chance of showers and a slight
chance of thunderstorms in the afternoon.
.tonight...nw wind 5 to 10 kts veering ne 10 to 15 kts in the
late evening and overnight. waves 2 to 4 ft. a chance of showers
and a slight chance of thunderstorms in the evening, then showers
likely after midnight.
.saturday...ne wind 10 to 15 kts. waves 2 to 4 ft. a chance of
showers. patchy smoke in the afternoon.
.saturday night...n wind 10 to 15 kts increasing to 15 to 25 kts
after midnight. waves 2 to 4 ft. patchy smoke in the evening. a
small craft advisory may be needed.
$$
(3/16)
Latest Nearshore Marine Forecast by KGRR
Issued 7/31/2026 9:41 AM America/New_York.
Valid through 7/31/2026 5:00 PM America/New_York.
fzus53 kgrr 311341
nshgrr
expires:202607312100;;390545
nearshore marine forecast
national weather service grand rapids mi
941 am edt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
lmz849-312100-
pentwater to manistee mi-
941 am edt fri jul 31 2026
.rest of today...southwest winds 5 to 10 knots. partly sunny late in
the morning then becoming cloudy. waves around 1 foot.
.tonight...southwest winds 5 to 15 knots veering northeast in the
late evening and overnight. cloudy with a chance of rain showers.
waves 1 foot or less.
.saturday...northeast winds 10 to 20 knots. rain showers likely.
waves 1 to 3 feet.
.saturday night...northeast winds 10 to 20 knots. mostly cloudy with
a chance of rain showers. waves 1 to 3 feet.
.sunday...north winds to 30 knots. mostly sunny. waves 2 to 4 feet
building to 3 to 5 feet in the late morning and afternoon.
.monday...northeast winds 5 to 15 knots backing northwest early in
the afternoon. sunny. waves around 1 foot.
.tuesday...south winds 5 to 10 knots veering southwest 10 to
20 knots in the late morning and afternoon. sunny. waves around
1 foot.
$$
(4/16)
Latest Nearshore Marine Forecast by KGRR
Issued 7/31/2026 9:41 AM America/New_York.
Valid through 7/31/2026 5:00 PM America/New_York.
fzus53 kgrr 311341
nshgrr
expires:202607312100;;390550
nearshore marine forecast
national weather service grand rapids mi
941 am edt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
lmz844-312100-
st joseph to south haven mi-
941 am edt fri jul 31 2026
.rest of today...south winds 5 to 10 knots. mostly sunny late in the
morning then becoming mostly cloudy. waves less than 1 foot.
.tonight...southeast winds 10 to 15 knots backing east after
midnight. rain showers likely and a slight chance of thunderstorms.
waves around 1 foot.
.saturday...east winds 15 to 20 knots. rain showers likely and a
slight chance of thunderstorms. waves 1 to 2 feet.
.saturday night...northeast winds 15 to 20 knots. rain showers
likely and a slight chance of thunderstorms. waves 2 to 4 feet.
.sunday...north winds 15 to 25 knots. partly sunny. waves 3 to
5 feet.
.monday...northeast winds 10 to 15 knots backing north early in the
afternoon. sunny. waves 1 to 3 feet.
.tuesday...east winds around 10 knots backing northwest early in the
afternoon. sunny. waves 1 foot or less.
$$
(5/16)
Latest Nearshore Marine Forecast by KGRR
Issued 7/31/2026 9:41 AM America/New_York.
Valid through 7/31/2026 5:00 PM America/New_York.
fzus53 kgrr 311341
nshgrr
expires:202607312100;;390549
nearshore marine forecast
national weather service grand rapids mi
941 am edt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
lmz845-312100-
south haven to holland mi-
941 am edt fri jul 31 2026
.rest of today...southwest winds 5 to 10 knots. mostly sunny late in
the morning then becoming mostly cloudy. waves 1 foot or less.
.tonight...east winds 5 to 10 knots backing northeast 10 to 15 knots
in the late evening and overnight. cloudy with a chance of rain
showers and a slight chance of thunderstorms. waves 1 foot or less.
.saturday...east winds 15 to 20 knots. rain showers likely and a
slight chance of thunderstorms. waves around 1 foot.
.saturday night...northeast winds 15 to 20 knots. rain showers
likely and a slight chance of thunderstorms. waves 1 to 2 feet.
.sunday...north winds 15 to 25 knots. partly sunny. waves 1 to
3 feet building to 2 to 4 feet early in the afternoon.
.monday...northeast winds 10 to 15 knots backing north early in the
afternoon. sunny. waves 1 to 2 feet.
.tuesday...east winds around 10 knots veering south in the late
morning and early afternoon, then veering northwest early in the
afternoon. sunny. waves 1 foot or less.
$$
(6/16)
Latest Nearshore Marine Forecast by KGRR
Issued 7/31/2026 9:41 AM America/New_York.
Valid through 7/31/2026 5:00 PM America/New_York.
fzus53 kgrr 311341
nshgrr
expires:202607312100;;390548
nearshore marine forecast
national weather service grand rapids mi
941 am edt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
lmz846-312100-
holland to grand haven mi-
941 am edt fri jul 31 2026
.rest of today...southwest winds 5 to 10 knots. mostly cloudy. waves
1 foot or less.
.tonight...northeast winds 5 to 15 knots. cloudy with a chance of
rain showers and a slight chance of thunderstorms. waves around
1 foot.
.saturday...northeast winds 15 to 20 knots. rain showers and a
slight chance of thunderstorms. waves around 1 foot.
.saturday night...northeast winds 15 to 20 knots. rain showers
likely and a slight chance of thunderstorms. waves 1 to 2 feet.
.sunday...north winds 15 to 20 knots. partly sunny. waves 1 to
2 feet building to 2 to 4 feet early in the afternoon.
.monday...northeast winds 10 to 15 knots backing northwest early in
the afternoon. sunny. waves around 1 foot.
.tuesday...east winds around 10 knots veering south in the late
morning and early afternoon, then veering west early in the
afternoon. sunny. waves 1 foot or less.
$$
(7/16)
Latest Nearshore Marine Forecast by KGRR
Issued 7/31/2026 9:41 AM America/New_York.
Valid through 7/31/2026 5:00 PM America/New_York.
fzus53 kgrr 311341
nshgrr
expires:202607312100;;390547
nearshore marine forecast
national weather service grand rapids mi
941 am edt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
lmz847-312100-
grand haven to whitehall mi-
941 am edt fri jul 31 2026
.rest of today...south winds 5 to 10 knots. partly sunny late in the
morning then becoming cloudy. waves around 1 foot.
.tonight...northeast winds 5 to 15 knots. rain showers likely and a
slight chance of thunderstorms. waves 1 foot or less.
.saturday...northeast winds 15 to 20 knots. rain showers and a
slight chance of thunderstorms. waves around 1 foot.
.saturday night...northeast winds 15 to 20 knots. mostly cloudy with
a chance of rain showers. waves 1 to 2 feet.
.sunday...north winds 15 to 25 knots. partly sunny. waves 1 to
3 feet building to 3 to 5 feet early in the afternoon.
.monday...northeast winds 10 to 20 knots backing northwest early in
the afternoon. sunny. waves around 1 foot.
.tuesday...southeast winds around 10 knots veering west early in the
afternoon. sunny. waves 1 foot or less.
$$
(8/16)
Latest Nearshore Marine Forecast by KGRR
Issued 7/31/2026 9:41 AM America/New_York.
Valid through 7/31/2026 5:00 PM America/New_York.
fzus53 kgrr 311341
nshgrr
expires:202607312100;;390546
nearshore marine forecast
national weather service grand rapids mi
941 am edt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
lmz848-312100-
whitehall to pentwater mi-
941 am edt fri jul 31 2026
.rest of today...south winds around 10 knots. partly sunny late in
the morning then becoming cloudy. waves around 1 foot.
.tonight...east winds 5 to 10 knots backing northeast 10 to 15 knots
in the late evening and overnight. rain showers likely. waves around
1 foot.
.saturday...northeast winds 15 to 20 knots. rain showers likely.
waves 1 to 3 feet.
.saturday night...northeast winds 15 to 20 knots. mostly cloudy with
a chance of rain showers. waves 2 to 4 feet.
.sunday...north winds to 30 knots. partly sunny. waves 2 to 4 feet
building to 4 to 6 feet.
.monday...northeast winds 10 to 15 knots backing northwest 15 to
20 knots early in the afternoon. sunny. waves around 1 foot.
.tuesday...southeast winds around 10 knots veering southwest early
in the afternoon. sunny. waves around 1 foot.
$$
(9/16)
Latest Nearshore Marine Forecast by KIWX
Issued 7/31/2026 10:44 AM America/New_York.
Valid through 7/31/2026 4:15 PM America/New_York.
fzus53 kiwx 311444
nshiwx
expires:202607312015;;392506
nearshore marine forecast
national weather service northern indiana
1044 am edt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
lmz046-312015-
michigan city in to new buffalo mi-
1044 am edt fri jul 31 2026
...small craft advisory in effect from saturday afternoon through
late sunday night...
.rest of today...south winds 10 knots or less. partly sunny.
waves 1 foot or less.
.tonight...south winds 5 to 15 knots becoming east. showers with
a chance of thunderstorms. waves 2 feet or less.
.saturday...east winds 10 to 15 knots becoming northeast. gusts
up to 25 knots. showers with a chance of thunderstorms. waves
1 to 3 feet.
.saturday night...northeast winds 15 to 20 knots. gusts up to
30 knots. showers likely with a chance of thunderstorms. waves
3 to 5 feet.
winds and waves higher in and near thunderstorms.
the water temperature at st. joseph is 57 degrees and at michigan
city is 68 degrees.
$$
(10/16)
Latest Nearshore Marine Forecast by KIWX
Issued 7/31/2026 10:44 AM America/New_York.
Valid through 7/31/2026 4:15 PM America/New_York.
fzus53 kiwx 311444
nshiwx
expires:202607312015;;392505
nearshore marine forecast
national weather service northern indiana
1044 am edt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
lmz043-312015-
new buffalo mi to st joseph mi-
1044 am edt fri jul 31 2026
...small craft advisory in effect from saturday afternoon through
late sunday night...
.rest of today...south winds 10 knots or less. mostly sunny late
this morning, then becoming mostly cloudy. waves 1 foot or less.
.tonight...south winds 5 to 15 knots becoming east. a chance of
showers with a slight chance of thunderstorms in the evening,
then showers with a chance of thunderstorms overnight. waves
1 foot or less.
.saturday...east winds 10 to 15 knots. gusts up to 25 knots.
showers likely with a chance of thunderstorms. waves 2 feet or
less.
.saturday night...northeast winds 15 to 20 knots diminishing to
10 to 15 knots. gusts up to 25 knots. showers likely with a
chance of thunderstorms in the evening, then a chance of showers
with a slight chance of thunderstorms overnight. waves 2 to
4 feet.
winds and waves higher in and near thunderstorms.
the water temperature at st. joseph is 57 degrees and at michigan
city is 68 degrees.
$$
(11/16)
Latest Nearshore Marine Forecast by KLOT
Issued 7/31/2026 3:14 AM US/Central.
Valid through 7/31/2026 10:15 AM US/Central.
fzus53 klot 310814
nshlot
expires:202607311515;;379349
nearshore marine forecast
national weather service chicago/romeoville il
314 am cdt fri jul 31 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>745-311515-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
314 am cdt fri jul 31 2026
...small craft advisory in effect from saturday morning through
late sunday night...
.today...south winds 5 to 10 kt increasing to 10 to 15 kt.
chance of showers in the afternoon. waves 1 ft or less building
to 1 to 2 ft.
.tonight...southeast winds 10 to 20 kt becoming east overnight.
showers and a chance of thunderstorms. waves building to 2 to 4
ft.
.saturday...east winds 15 to 25 kt becoming northeast to 30 kt
in the afternoon. showers and a chance of thunderstorms. waves 2
to 4 ft building to 4 to 7 ft occasionally to 9 ft.
.saturday night...northeast winds to 30 kt. showers likely and a
chance of thunderstorms in the evening, then chance of showers
overnight. waves 5 to 8 ft occasionally to 10 ft.
$$
(12/16)
Latest Nearshore Marine Forecast by KLOT
Issued 7/31/2026 3:14 AM US/Central.
Valid through 7/31/2026 10:15 AM US/Central.
fzus53 klot 310814
nshlot
expires:202607311515;;379348
nearshore marine forecast
national weather service chicago/romeoville il
314 am cdt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.
lmz740>742-311515-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
314 am cdt fri jul 31 2026
...small craft advisory in effect from late tonight through late
sunday night...
.today...south winds around 10 kt becoming southeast 10 to 20 kt.
chance of showers in the afternoon. waves 1 ft or less building
to 1 to 3 ft.
.tonight...southeast winds 15 to 20 kt becoming east 20 to 25 kt
overnight. showers and a chance of thunderstorms. waves 2 to 4 ft
building to 4 to 6 ft occasionally to 8 ft.
.saturday...east winds 20 to 25 kt becoming northeast to 30 kt in
the afternoon. showers and slight chance of thunderstorms. waves
building to 6 to 9 ft occasionally to 12 ft.
.saturday night...northeast winds to 30 kt diminishing to 15 to
25 kt. chance of showers and slight chance of thunderstorms in
the evening, then slight chance of showers overnight. waves
subsiding to 5 to 8 ft occasionally to 10 ft.
$$
(13/16)
Latest Nearshore Marine Forecast by KMKX
Issued 7/31/2026 9:10 AM US/Central.
Valid through 7/31/2026 5:00 PM US/Central.
fzus53 kmkx 311410
nshmkx
expires:202607312200;;391732
nearshore marine forecast
national weather service milwaukee/sullivan wi
910 am cdt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
lmz646-312200-
wind point wi to winthrop harbor il-
910 am cdt fri jul 31 2026
...small craft advisory in effect from late tonight through late
sunday night...
.rest of today...south wind 5 to 10 knots becoming southeast
10 to 15 knots in the afternoon. isolated showers early in the
afternoon. scattered showers late in the afternoon. waves around
1 foot.
.tonight...southeast wind 10 to 15 knots becoming east 15 to
20 knots in the late evening and early morning, then becoming
15 to 25 knots early in the morning. showers and slight chance of
thunderstorms. waves 1 to 3 feet building to 4 to 6 feet.
.saturday...northeast wind 15 to 25 knots. gusts up to 30 knots.
showers in the morning. slight chance of thunderstorms through
the day. showers likely in the afternoon. waves 5 to 7 feet
building to 6 to 8 feet in the late morning and afternoon.
.saturday night...northeast wind 15 to 25 knots backing north
after midnight. chance of showers through around midnight. waves
6 to 8 feet subsiding to 5 to 7 feet in the late evening and
overnight.
$$
(14/16)
Latest Nearshore Marine Forecast by KMKX
Issued 7/31/2026 9:10 AM US/Central.
Valid through 7/31/2026 5:00 PM US/Central.
fzus53 kmkx 311410
nshmkx
expires:202607312200;;391730
nearshore marine forecast
national weather service milwaukee/sullivan wi
910 am cdt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
lmz644-312200-
port washington to north point light wi-
910 am cdt fri jul 31 2026
...small craft advisory in effect from late tonight through late
sunday night...
.rest of today...southeast wind 5 to 10 knots rising to 10 to
15 knots early in the afternoon, then becoming southeast 10 to
15 knots late in the afternoon. isolated showers early in the
afternoon. scattered showers late in the afternoon. waves around
1 foot.
.tonight...east wind 10 to 15 knots rising to 15 to 20 knots late
in the evening, then backing northeast after midnight becoming
15 to 25 knots early in the morning. showers through the night.
slight chance of thunderstorms after midnight. patchy smoke after
midnight. waves 1 to 2 feet building to 4 to 6 feet.
.saturday...northeast wind 15 to 25 knots. gusts up to 30 knots.
showers in the morning, then showers likely and slight chance of
thunderstorms in the afternoon. waves 5 to 7 feet building to
6 to 8 feet in the late morning and afternoon.
.saturday night...northeast wind 15 to 25 knots backing north in
the late evening and overnight. chance of showers through around
midnight. waves 5 to 7 feet.
$$
(15/16)
Latest Nearshore Marine Forecast by KMKX
Issued 7/31/2026 9:10 AM US/Central.
Valid through 7/31/2026 5:00 PM US/Central.
fzus53 kmkx 311410
nshmkx
expires:202607312200;;391729
nearshore marine forecast
national weather service milwaukee/sullivan wi
910 am cdt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
lmz643-312200-
sheboygan to port washington wi-
910 am cdt fri jul 31 2026
...small craft advisory in effect from late tonight through late
sunday night...
.rest of today...south wind 5 to 10 knots becoming southeast
10 to 15 knots in the afternoon. isolated showers early in the
afternoon. scattered showers late in the afternoon. waves around
1 foot.
.tonight...east wind 10 to 15 knots becoming 10 to 20 knots late
in the evening, then backing northeast 15 to 20 knots after
midnight becoming 15 to 25 knots early in the morning. showers
likely through around midnight, then showers and slight chance of
thunderstorms after midnight. patchy smoke after midnight. waves
1 to 2 feet building to 3 to 5 feet.
.saturday...northeast wind 15 to 25 knots. patchy smoke in the
morning. showers in the morning, then showers likely and slight
chance of thunderstorms in the afternoon. waves 4 to 6 feet.
.saturday night...northeast wind 15 to 25 knots becoming north
10 to 20 knots after midnight, then rising to 15 to 25 knots
early in the morning. mostly cloudy. waves 4 to 6 feet.
$$
(16/16)
Latest Nearshore Marine Forecast by KMKX
Issued 7/31/2026 9:10 AM US/Central.
Valid through 7/31/2026 5:00 PM US/Central.
fzus53 kmkx 311410
nshmkx
expires:202607312200;;391731
nearshore marine forecast
national weather service milwaukee/sullivan wi
910 am cdt fri jul 31 2026
for waters within five nautical miles of shore on lake michigan
lmz645-312200-
north point light to wind point wi-
910 am cdt fri jul 31 2026
...small craft advisory in effect from late tonight through late
sunday night...
.rest of today...south wind 5 to 10 knots becoming southeast
10 to 15 knots in the afternoon. isolated showers early in the
afternoon. scattered showers late in the afternoon. waves around
1 foot.
.tonight...southeast wind 10 to 15 knots becoming east 15 to
20 knots late in the evening, then backing northeast after
midnight veering east 15 to 25 knots early in the morning.
showers and slight chance of thunderstorms. waves 1 to 3 feet
building to 4 to 6 feet.
.saturday...northeast wind 15 to 25 knots. gusts up to 30 knots.
showers in the morning. slight chance of thunderstorms through
the day. showers likely in the afternoon. waves 5 to 7 feet
building to 6 to 8 feet in the late morning and afternoon.
.saturday night...northeast wind 15 to 25 knots backing north
after midnight. chance of showers through around midnight. waves
6 to 8 feet.
$$
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