(1/15)
Latest Nearshore Marine Forecast by KAPX
Issued 8/13/2026 9:48 AM America/New_York.
Valid through 8/13/2026 6:00 PM America/New_York.
fzus53 kapx 131348
nshapx
expires:202608132200;;118319
nearshore marine forecast
national weather service gaylord mi
issued by national weather service detroit/pontiac mi
948 am edt thu aug 13 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.
lmz346-132200-
manistee to point betsie mi-
948 am edt thu aug 13 2026
.today...light winds. mostly cloudy. waves 2 feet or less.
.tonight...light winds. mostly cloudy. waves 2 feet or less.
.friday...northeast wind 10 to 15 knots. mostly sunny. waves
2 feet or less.
.friday night...east wind 5 to 10 knots. partly cloudy. waves
2 feet or less.
see the open lakes forecast for days 3 through 5.
$$
(2/15)
Latest Nearshore Marine Forecast by KGRB
Issued 8/13/2026 8:41 AM US/Central.
Valid through 8/13/2026 11:00 AM US/Central.
fzus53 kgrb 131341
nshgrb
expires:202608131600;;118182
nearshore marine forecast
national weather service green bay wi
841 am cdt thu aug 13 2026
for waters within five nautical miles of shore on lake michigan
lmz541>543-131600-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
841 am cdt thu aug 13 2026
.today...ne wind around 5 kts veering se in the late morning and
afternoon. waves 2 ft or less. patchy fog in the morning. a
slight chance of showers in the afternoon.
.tonight...e wind 5 to 10 kts backing ne 10 to 15 kts in the late
evening and overnight. waves 2 ft or less. a slight chance of
showers in the evening.
.friday...ne wind 10 to 15 kts. waves 1 to 3 ft. partly cloudy.
.friday night...e wind 10 to 15 kts veering se after midnight.
waves 1 to 3 ft building to 2 to 4 ft after midnight. a chance of
showers after midnight.
$$
(3/15)
Latest Nearshore Marine Forecast by KGRR
Issued 8/13/2026 9:41 AM America/New_York.
Valid through 8/13/2026 5:00 PM America/New_York.
fzus53 kgrr 131341
nshgrr
expires:202608132100;;118177
nearshore marine forecast
national weather service grand rapids mi
941 am edt thu aug 13 2026
for waters within five nautical miles of shore on lake michigan
lmz847-132100-
grand haven to whitehall mi-
941 am edt thu aug 13 2026
...dense fog advisory in effect until 10 am edt this morning...
.rest of today...south winds around 5 knots veering west early in
the afternoon. mostly cloudy. waves less than 1 foot.
.tonight...northwest winds around 10 knots veering northeast after
midnight. partly cloudy. waves less than 1 foot.
.friday...east winds 10 to 15 knots backing northwest early in the
afternoon. partly sunny. waves around 1 foot.
.friday night...north winds 10 to 20 knots veering east in the late
evening and overnight. partly cloudy. waves 1 to 2 feet.
.saturday...southeast winds 15 to 20 knots. rain showers likely.
waves 1 to 2 feet.
.sunday...west winds 15 to 20 knots veering northwest early in the
afternoon. mostly cloudy with a chance of showers and thunderstorms.
waves 2 to 4 feet.
.monday...north winds 10 to 15 knots backing northwest 15 to
20 knots early in the afternoon. sunny. waves 1 to 3 feet.
$$
(4/15)
Latest Nearshore Marine Forecast by KGRR
Issued 8/13/2026 9:41 AM America/New_York.
Valid through 8/13/2026 5:00 PM America/New_York.
fzus53 kgrr 131341
nshgrr
expires:202608132100;;118175
nearshore marine forecast
national weather service grand rapids mi
941 am edt thu aug 13 2026
for waters within five nautical miles of shore on lake michigan
lmz849-132100-
pentwater to manistee mi-
941 am edt thu aug 13 2026
.rest of today...east winds around 5 knots backing northwest early
in the afternoon. mostly cloudy. waves less than 1 foot.
.tonight...north winds 5 to 10 knots veering northeast in the late
evening and overnight. partly cloudy. waves less than 1 foot.
.friday...northeast winds 5 to 15 knots backing north 15 to 20 knots
early in the afternoon. mostly sunny. waves 2 to 4 feet.
.friday night...north winds 10 to 20 knots veering east in the late
evening and overnight. partly cloudy. waves 2 to 4 feet.
.saturday...southeast winds 10 to 20 knots veering south early in
the afternoon. mostly cloudy with a chance of rain showers. waves
1 to 3 feet.
.sunday...west winds 10 to 15 knots veering north early in the
afternoon. mostly cloudy with a chance of thunderstorms. waves 2 to
4 feet.
.monday...north winds 10 to 20 knots. sunny. waves 1 to 2 feet.
$$
(5/15)
Latest Nearshore Marine Forecast by KGRR
Issued 8/13/2026 9:41 AM America/New_York.
Valid through 8/13/2026 5:00 PM America/New_York.
fzus53 kgrr 131341
nshgrr
expires:202608132100;;118176
nearshore marine forecast
national weather service grand rapids mi
941 am edt thu aug 13 2026
for waters within five nautical miles of shore on lake michigan
lmz848-132100-
whitehall to pentwater mi-
941 am edt thu aug 13 2026
.rest of today...south winds around 5 knots veering west early in
the afternoon. mostly cloudy. waves less than 1 foot.
.tonight...northwest winds around 10 knots veering east after
midnight. partly cloudy. waves less than 1 foot.
.friday...east winds 10 to 20 knots backing northwest early in the
afternoon. partly sunny. waves 2 to 4 feet.
.friday night...north winds 10 to 20 knots veering east in the late
evening and overnight. partly cloudy. waves 2 to 4 feet subsiding to
1 to 3 feet in the late evening and overnight.
.saturday...southeast winds 15 to 20 knots veering south early in
the afternoon. rain showers likely. waves 1 to 3 feet.
.sunday...west winds around 15 knots veering northwest early in the
afternoon. mostly cloudy with a chance of showers and thunderstorms.
waves 2 to 4 feet.
.monday...north winds 10 to 20 knots backing northwest early in the
afternoon. sunny. waves 1 to 3 feet.
$$
(6/15)
Latest Nearshore Marine Forecast by KGRR
Issued 8/13/2026 9:41 AM America/New_York.
Valid through 8/13/2026 5:00 PM America/New_York.
fzus53 kgrr 131341
nshgrr
expires:202608132100;;118180
nearshore marine forecast
national weather service grand rapids mi
941 am edt thu aug 13 2026
for waters within five nautical miles of shore on lake michigan
lmz844-132100-
st joseph to south haven mi-
941 am edt thu aug 13 2026
...dense fog advisory in effect until 10 am edt this morning...
.rest of today...southeast winds around 5 knots backing north early
in the afternoon. mostly cloudy. a slight chance of rain showers in
the afternoon. waves less than 1 foot.
.tonight...east winds 5 to 10 knots. mostly cloudy with a chance of
rain showers. waves less than 1 foot.
.friday...east winds around 10 knots. mostly cloudy with a chance of
rain showers. waves less than 1 foot.
.friday night...northeast winds 5 to 15 knots veering east in the
late evening and overnight. partly cloudy with a chance of rain
showers. waves around 1 foot.
.saturday...southeast winds 10 to 15 knots. rain showers likely and
a chance of thunderstorms. waves around 1 foot.
.sunday...west winds around 15 knots veering northwest early in the
afternoon. mostly cloudy with rain showers likely and a chance of
thunderstorms. waves 1 to 2 feet.
.monday...north winds 10 to 15 knots becoming around 15 knots early
in the afternoon. mostly sunny. waves 1 to 2 feet.
$$
(7/15)
Latest Nearshore Marine Forecast by KGRR
Issued 8/13/2026 9:41 AM America/New_York.
Valid through 8/13/2026 5:00 PM America/New_York.
fzus53 kgrr 131341
nshgrr
expires:202608132100;;118179
nearshore marine forecast
national weather service grand rapids mi
941 am edt thu aug 13 2026
for waters within five nautical miles of shore on lake michigan
lmz845-132100-
south haven to holland mi-
941 am edt thu aug 13 2026
...dense fog advisory in effect until 10 am edt this morning...
.rest of today...south winds around 5 knots veering northwest early
in the afternoon. mostly cloudy. waves less than 1 foot.
.tonight...north winds 5 to 10 knots veering east after midnight.
mostly cloudy. waves less than 1 foot.
.friday...east winds around 10 knots. partly sunny with a slight
chance of rain showers. waves less than 1 foot.
.friday night...north winds 5 to 10 knots veering east 10 to
15 knots in the late evening and overnight. partly cloudy with a
chance of rain showers. waves around 1 foot.
.saturday...southeast winds 10 to 15 knots. rain showers likely and
a chance of thunderstorms. waves around 1 foot.
.sunday...west winds 15 to 20 knots veering northwest 10 to 15 knots
early in the afternoon. mostly cloudy with a chance of showers and
thunderstorms. waves 1 to 3 feet.
.monday...north winds 10 to 15 knots backing northwest 15 to
20 knots early in the afternoon. mostly sunny. waves 1 to 2 feet.
$$
(8/15)
Latest Nearshore Marine Forecast by KGRR
Issued 8/13/2026 9:41 AM America/New_York.
Valid through 8/13/2026 5:00 PM America/New_York.
fzus53 kgrr 131341
nshgrr
expires:202608132100;;118178
nearshore marine forecast
national weather service grand rapids mi
941 am edt thu aug 13 2026
for waters within five nautical miles of shore on lake michigan
lmz846-132100-
holland to grand haven mi-
941 am edt thu aug 13 2026
...dense fog advisory in effect until 10 am edt this morning...
.rest of today...south winds around 5 knots veering west early in
the afternoon. mostly cloudy. waves less than 1 foot.
.tonight...northwest winds around 10 knots veering east after
midnight. partly cloudy. waves less than 1 foot.
.friday...east winds 10 to 15 knots. partly sunny. waves 1 foot or
less.
.friday night...north winds around 10 knots veering east in the late
evening and overnight. partly cloudy. waves around 1 foot.
.saturday...southeast winds 15 to 20 knots. rain showers likely and
a slight chance of thunderstorms. waves around 1 foot.
.sunday...west winds 15 to 20 knots veering northwest early in the
afternoon. mostly cloudy with a chance of showers and thunderstorms.
waves 2 to 4 feet.
.monday...north winds 10 to 15 knots backing northwest 15 to
20 knots early in the afternoon. mostly sunny. waves 1 to 3 feet.
$$
(9/15)
Latest Nearshore Marine Forecast by KIWX
Issued 8/13/2026 10:55 AM America/New_York.
Valid through 8/13/2026 4:15 PM America/New_York.
fzus53 kiwx 131455
nshiwx
expires:202608132015;;120170
nearshore marine forecast
national weather service northern indiana
1055 am edt thu aug 13 2026
for waters within five nautical miles of shore on lake michigan
lmz043-046-132015-
new buffalo mi to st joseph mi-michigan city in to new buffalo mi-
1055 am edt thu aug 13 2026
.this afternoon...light and variable winds. a chance of showers
with a slight chance of thunderstorms late. waves 1 foot or less.
.tonight...northeast winds 5 to 10 knots becoming east. a chance
of showers with a slight chance of thunderstorms. waves 1 foot or
less.
.friday...east winds 5 to 10 knots becoming northeast. a chance
of showers with a slight chance of thunderstorms. waves 1 foot or
less.
.friday night...northeast winds 5 to 10 knots becoming southeast.
a slight chance of showers and thunderstorms in the evening, then
a chance of showers and thunderstorms overnight. waves 1 foot or
less.
winds and waves higher in and near thunderstorms.
the water temperature at st. joseph is 74 degrees and at michigan
city is 66 degrees.
$$
(10/15)
Latest Nearshore Marine Forecast by KLOT
Issued 8/13/2026 10:13 AM US/Central.
Valid through 8/13/2026 4:15 PM US/Central.
fzus53 klot 131513
nshlot
expires:202608132115;;121306
nearshore marine forecast
national weather service chicago/romeoville il
1013 am cdt thu aug 13 2026
for waters within five nautical miles of shore on lake michigan
waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.
lmz743>745-132115-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
1013 am cdt thu aug 13 2026
.rest of today...south winds around 5 kt becoming northeast around
10 kt in the afternoon. chance of showers and slight chance of
thunderstorms in the afternoon. waves around 1 ft.
.tonight...east winds around 10 kt. showers likely and a chance
of thunderstorms. waves 1 to 2 ft.
.friday...east winds 10 to 15 kt. showers likely and a chance of
thunderstorms in the morning, then chance of showers and slight
chance of thunderstorms in the afternoon. waves 1 to 2 ft.
.friday night...east winds 10 to 15 kt becoming southeast
overnight. chance of showers and thunderstorms in the evening,
then showers likely and a chance of thunderstorms overnight.
waves 1 to 2 ft.
$$
(11/15)
Latest Nearshore Marine Forecast by KLOT
Issued 8/13/2026 10:13 AM US/Central.
Valid through 8/13/2026 4:15 PM US/Central.
fzus53 klot 131513
nshlot
expires:202608132115;;121305
nearshore marine forecast
national weather service chicago/romeoville il
1013 am cdt thu aug 13 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>742-132115-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
1013 am cdt thu aug 13 2026
.rest of today...southeast winds around 5 kt becoming east around
10 kt in the afternoon. chance of showers and slight chance of
thunderstorms in the afternoon. waves around 1 ft.
.tonight...east winds 10 to 15 kt. chance of showers and slight
chance of thunderstorms. waves 1 to 2 ft.
.friday...east winds 10 to 15 kt. chance of showers and slight
chance of thunderstorms. waves 1 to 3 ft.
.friday night...northeast winds 10 to 15 kt becoming southeast
overnight. chance of showers and thunderstorms in the evening,
then showers likely and a chance of thunderstorms overnight.
waves 1 to 3 ft building to 2 to 4 ft.
$$
(12/15)
Latest Nearshore Marine Forecast by KMKX
Issued 8/13/2026 5:10 AM US/Central.
Valid through 8/13/2026 11:00 AM US/Central.
fzus53 kmkx 131010
nshmkx
expires:202608131600;;111053
nearshore marine forecast
national weather service milwaukee/sullivan wi
510 am cdt thu aug 13 2026
for waters within five nautical miles of shore on lake michigan
lmz645-131600-
north point light to wind point wi-
510 am cdt thu aug 13 2026
.today...northeast wind 5 to 10 knots veering southeast late in
the afternoon. patchy fog in the morning. chance of showers early
in the afternoon. slight chance of showers late in the afternoon.
waves around 1 foot.
.tonight...southeast wind 5 to 10 knots becoming east 10 to
15 knots after midnight, then backing northeast early in the
morning. slight chance of showers through around midnight. waves
1 to 2 feet.
.friday...northeast wind 10 to 15 knots veering east late in the
morning, then becoming east 10 to 15 knots early in the afternoon
backing northeast late in the afternoon. chance of showers in the
morning. slight chance of showers in the afternoon. waves 1 to
3 feet building to 2 to 4 feet in the late morning and early
afternoon, then subsiding to 1 to 3 feet late in the afternoon.
.friday night...northeast wind 10 to 15 knots veering east after
midnight, then becoming southeast 15 to 20 knots early in the
morning. slight chance of showers through the night. slight
chance of thunderstorms after midnight. waves 3 to 4 feet.
$$
(13/15)
Latest Nearshore Marine Forecast by KMKX
Issued 8/13/2026 5:10 AM US/Central.
Valid through 8/13/2026 11:00 AM US/Central.
fzus53 kmkx 131010
nshmkx
expires:202608131600;;111052
nearshore marine forecast
national weather service milwaukee/sullivan wi
510 am cdt thu aug 13 2026
for waters within five nautical miles of shore on lake michigan
lmz644-131600-
port washington to north point light wi-
510 am cdt thu aug 13 2026
.today...east wind 5 to 10 knots veering southeast late in the
afternoon. patchy fog in the morning. slight chance of showers in
the afternoon. waves nearly calm.
.tonight...southeast wind 5 to 10 knots backing east late in the
evening, then backing northeast after midnight rising to 10 to
15 knots early in the morning. mostly cloudy. waves around
1 foot.
.friday...northeast wind 10 to 15 knots veering east in the late
morning and early afternoon, then backing northeast with gusts to
around 20 knots late in the afternoon. mostly cloudy. waves 1 to
3 feet building to 2 to 4 feet in the late morning and afternoon.
.friday night...northeast wind 10 to 15 knots with gusts to
around 20 knots becoming northeast 10 to 15 knots late in the
evening, then veering east after midnight becoming southeast
15 to 20 knots early in the morning. slight chance of showers
through around midnight, then chance of showers and slight chance
of thunderstorms after midnight. waves 3 to 4 feet.
$$
(14/15)
Latest Nearshore Marine Forecast by KMKX
Issued 8/13/2026 5:10 AM US/Central.
Valid through 8/13/2026 11:00 AM US/Central.
fzus53 kmkx 131010
nshmkx
expires:202608131600;;111051
nearshore marine forecast
national weather service milwaukee/sullivan wi
510 am cdt thu aug 13 2026
for waters within five nautical miles of shore on lake michigan
lmz643-131600-
sheboygan to port washington wi-
510 am cdt thu aug 13 2026
.today...east wind 5 knots becoming southeast in the afternoon.
patchy fog in the morning. waves nearly calm.
.tonight...southeast wind 5 to 10 knots backing northeast late in
the evening, then becoming northeast 5 to 10 knots after midnight
rising to 10 to 15 knots early in the morning. partly cloudy.
waves around 1 foot.
.friday...northeast wind 10 to 15 knots with gusts to around
20 knots rising to 15 to 20 knots late in the afternoon. partly
sunny. waves 1 to 3 feet building to 2 to 4 feet in the late
morning and afternoon.
.friday night...northeast wind 15 to 20 knots easing to 10 to
15 knots late in the evening, then becoming east 15 to 20 knots
after midnight veering southeast early in the morning. chance of
showers after midnight. waves 3 to 4 feet.
$$
(15/15)
Latest Nearshore Marine Forecast by KMKX
Issued 8/13/2026 5:10 AM US/Central.
Valid through 8/13/2026 11:00 AM US/Central.
fzus53 kmkx 131010
nshmkx
expires:202608131600;;111054
nearshore marine forecast
national weather service milwaukee/sullivan wi
510 am cdt thu aug 13 2026
for waters within five nautical miles of shore on lake michigan
lmz646-131600-
wind point wi to winthrop harbor il-
510 am cdt thu aug 13 2026
.today...east wind 5 to 10 knots. patchy fog in the morning.
chance of showers in the afternoon. waves around 1 foot.
.tonight...southeast wind 5 to 10 knots becoming east 10 to
15 knots in the late evening and overnight. chance of showers
through around midnight. slight chance of showers after midnight.
waves 1 to 2 feet.
.friday...east wind 10 to 15 knots backing northeast late in the
afternoon. chance of showers in the morning, then slight chance
of showers in the afternoon. waves 1 to 3 feet building to 2 to
4 feet in the late morning and early afternoon, then subsiding to
1 to 3 feet late in the afternoon.
.friday night...northeast wind 10 to 15 knots veering east after
midnight, then becoming southeast 15 to 20 knots early in the
morning. slight chance of showers through around midnight. slight
chance of thunderstorms through the night. showers likely after
midnight. waves 1 to 3 feet building to 2 to 4 feet in the late
evening and overnight.
$$
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