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(1/16)
Latest Nearshore Marine Forecast by KAPX
Issued 5/13/2026 9:41 AM America/New_York.
Valid through 5/13/2026 5:45 PM America/New_York.
fzus53 kapx 131341
nshapx
expires:202605132145;;491249
nearshore marine forecast
national weather service gaylord mi
941 am edt wed may 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.
lmz346-132145-
manistee to point betsie mi-
941 am edt wed may 13 2026
...small craft advisory in effect until 8 pm edt this evening...
.today...northwest wind 10 to 20 knots. mostly cloudy. waves 4 to
6 feet.
.tonight...north wind 10 to 15 knots. mostly clear. waves 2 to
3 feet.
.thursday...northwest wind 5 to 10 knots. sunny. waves 2 feet or
less.
.thursday night...southeast wind 10 to 15 knots. mostly cloudy.
waves 2 feet or less.
see the open lakes forecast for days 3 through 5.
$$
(2/16)
Latest Nearshore Marine Forecast by KGRB
Issued 5/13/2026 2:36 PM US/Central.
Valid through 5/13/2026 5:00 PM US/Central.
fzus53 kgrb 131936
nshgrb
expires:202605132200;;505980
nearshore marine forecast
national weather service green bay wi
236 pm cdt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
lmz542-543-132200-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
236 pm cdt wed may 13 2026
...small craft advisory in effect until 7 pm cdt this evening...
.this afternoon...n wind 10 to 20 kts. waves 1 to 3 ft. partly
cloudy.
.tonight...nw wind 5 to 10 kts. waves 2 ft or less. clear.
.thursday...n wind 5 to 10 kts veering e mid-day, then veering se
early in the afternoon. waves 2 ft or less. sunny.
.thursday night...s wind 10 to 15 kts. waves 2 ft or less
building to 2 to 4 ft after midnight. partly cloudy in the
evening then becoming mostly cloudy.
$$
(3/16)
Latest Nearshore Marine Forecast by KGRR
Issued 5/13/2026 3:36 PM America/New_York.
Valid through 5/14/2026 4:00 AM America/New_York.
fzus53 kgrr 131936
nshgrr
expires:202605140800;;505972
nearshore marine forecast
national weather service grand rapids mi
336 pm edt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
lmz849-140800-
pentwater to manistee mi-
336 pm edt wed may 13 2026
...small craft advisory in effect until 2 am edt thursday...
.through early evening...northwest winds 20 to 25 knots. mostly
cloudy. waves 4 to 6 feet.
.tonight...north winds 10 to 20 knots. partly cloudy in the evening
then becoming clear. waves 2 to 4 feet subsiding to 1 to 3 feet
after midnight.
.thursday...northwest winds 10 to 15 knots. sunny. waves 1 to
2 feet.
.thursday night...northwest winds 5 to 15 knots backing south in the
late evening and overnight. partly cloudy. waves 1 foot or less.
.friday...south winds 10 to 20 knots increasing to 30 knots in the
late morning and afternoon. partly sunny. waves 1 to 3 feet building
to 5 to 7 feet in the late morning and afternoon.
.friday night...south winds to 30 knots. partly cloudy. waves 5 to
7 feet.
.saturday...south winds 10 to 20 knots. mostly sunny. waves 3 to
5 feet subsiding to 2 to 3 feet early in the afternoon.
.sunday...east winds 10 to 20 knots. mostly sunny with a chance of
rain showers. waves around 1 foot.
.monday...south winds to 30 knots. partly sunny with a chance of
rain showers. waves 5 to 7 feet building to 6 to 8 feet early in the
afternoon.
$$
(4/16)
Latest Nearshore Marine Forecast by KGRR
Issued 5/13/2026 3:36 PM America/New_York.
Valid through 5/14/2026 4:00 AM America/New_York.
fzus53 kgrr 131936
nshgrr
expires:202605140800;;505977
nearshore marine forecast
national weather service grand rapids mi
336 pm edt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
lmz844-140800-
st joseph to south haven mi-
336 pm edt wed may 13 2026
...small craft advisory in effect until 2 am edt thursday...
.through early evening...northwest winds to 30 knots. partly sunny.
waves 5 to 7 feet.
.tonight...northwest winds 15 to 25 knots. mostly clear. waves 4 to
6 feet subsiding to 2 to 3 feet after midnight.
.thursday...northwest winds 10 to 15 knots. sunny. waves 1 to
3 feet.
.thursday night...northwest winds 5 to 10 knots backing southeast in
the late evening and overnight. partly cloudy. waves around 1 foot.
.friday...south winds 10 to 20 knots. partly sunny with a slight
chance of rain showers. waves 1 to 3 feet.
.friday night...south winds 10 to 20 knots. partly cloudy. waves
1 to 3 feet.
.saturday...south winds 10 to 15 knots veering southwest 5 to
10 knots early in the afternoon. partly sunny with a chance of rain
showers. waves around 1 foot.
.sunday...southeast winds 5 to 10 knots increasing to 10 to 15 knots
early in the afternoon. partly sunny with rain showers likely and a
chance of thunderstorms. waves 1 foot or less.
.monday...south winds 15 to 25 knots. mostly sunny. waves 2 to
4 feet.
$$
(5/16)
Latest Nearshore Marine Forecast by KGRR
Issued 5/13/2026 3:36 PM America/New_York.
Valid through 5/14/2026 4:00 AM America/New_York.
fzus53 kgrr 131936
nshgrr
expires:202605140800;;505976
nearshore marine forecast
national weather service grand rapids mi
336 pm edt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
lmz845-140800-
south haven to holland mi-
336 pm edt wed may 13 2026
...small craft advisory in effect until 2 am edt thursday...
.through early evening...northwest winds to 30 knots. partly sunny.
waves 5 to 7 feet.
.tonight...north winds 15 to 25 knots. mostly clear. waves 4 to
6 feet subsiding to 2 to 3 feet after midnight.
.thursday...northwest winds 10 to 20 knots. sunny. waves 1 to
3 feet.
.thursday night...west winds 5 to 15 knots backing south in the late
evening and overnight. partly cloudy. waves 1 to 2 feet.
.friday...south winds 10 to 20 knots. partly sunny. waves 2 to
3 feet.
.friday night...south winds 15 to 20 knots. partly cloudy. waves
2 to 3 feet.
.saturday...southwest winds 5 to 15 knots. partly sunny with a
chance of rain showers. waves 1 to 2 feet.
.sunday...east winds 10 to 15 knots veering southeast early in the
afternoon. partly sunny with a chance of rain showers. waves 1 foot
or less.
.monday...south winds 15 to 25 knots. mostly sunny. waves 2 to
4 feet.
$$
(6/16)
Latest Nearshore Marine Forecast by KGRR
Issued 5/13/2026 3:36 PM America/New_York.
Valid through 5/14/2026 4:00 AM America/New_York.
fzus53 kgrr 131936
nshgrr
expires:202605140800;;505975
nearshore marine forecast
national weather service grand rapids mi
336 pm edt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
lmz846-140800-
holland to grand haven mi-
336 pm edt wed may 13 2026
...small craft advisory in effect until 2 am edt thursday...
.through early evening...northwest winds to 30 knots. partly sunny.
waves 5 to 7 feet.
.tonight...northwest winds 15 to 25 knots. mostly clear. waves 4 to
6 feet subsiding to 1 to 3 feet after midnight.
.thursday...northwest winds 15 to 20 knots. sunny. waves 1 to
3 feet.
.thursday night...west winds 5 to 15 knots backing south in the late
evening and early morning, then becoming 5 to 15 knots after
midnight. partly cloudy. waves 1 to 2 feet.
.friday...south winds 15 to 25 knots. partly sunny. waves 1 to
3 feet building to 2 to 4 feet in the late morning and afternoon.
.friday night...south winds 15 to 25 knots. partly cloudy. waves
2 to 4 feet.
.saturday...southwest winds 5 to 15 knots. mostly sunny. waves 2 to
3 feet subsiding to 1 to 2 feet in the late morning and afternoon.
.sunday...east winds 10 to 15 knots veering southeast early in the
afternoon. partly sunny with a chance of rain showers. waves 1 foot
or less.
.monday...south winds to 30 knots. mostly sunny. waves 3 to 5 feet.
$$
(7/16)
Latest Nearshore Marine Forecast by KGRR
Issued 5/13/2026 3:36 PM America/New_York.
Valid through 5/14/2026 4:00 AM America/New_York.
fzus53 kgrr 131936
nshgrr
expires:202605140800;;505974
nearshore marine forecast
national weather service grand rapids mi
336 pm edt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
lmz847-140800-
grand haven to whitehall mi-
336 pm edt wed may 13 2026
...small craft advisory in effect until 2 am edt thursday...
.through early evening...northwest winds to 30 knots. mostly cloudy.
waves 5 to 7 feet.
.tonight...northwest winds 15 to 25 knots. mostly clear. waves 4 to
6 feet subsiding to 1 to 3 feet.
.thursday...northwest winds 15 to 20 knots. sunny. waves 1 to
2 feet.
.thursday night...northwest winds 5 to 15 knots backing south in the
late evening and overnight. partly cloudy. waves 1 to 2 feet.
.friday...south winds 10 to 20 knots increasing to 20 to 25 knots in
the late morning and afternoon. partly sunny. waves 1 to 3 feet
building to 4 to 6 feet in the late morning and afternoon.
.friday night...south winds 15 to 25 knots. partly cloudy. waves
4 to 6 feet.
.saturday...south winds 10 to 20 knots. mostly sunny. waves 2 to
4 feet.
.sunday...east winds 10 to 15 knots veering southeast early in the
afternoon. partly sunny with a chance of rain showers. waves 1 foot
or less.
.monday...south winds to 30 knots. partly sunny. waves 5 to 7 feet.
$$
(8/16)
Latest Nearshore Marine Forecast by KGRR
Issued 5/13/2026 3:36 PM America/New_York.
Valid through 5/14/2026 4:00 AM America/New_York.
fzus53 kgrr 131936
nshgrr
expires:202605140800;;505973
nearshore marine forecast
national weather service grand rapids mi
336 pm edt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
lmz848-140800-
whitehall to pentwater mi-
336 pm edt wed may 13 2026
...small craft advisory in effect until 2 am edt thursday...
.through early evening...northwest winds 20 to 25 knots. mostly
cloudy. waves 4 to 6 feet.
.tonight...north winds 15 to 25 knots backing northwest 10 to
15 knots after midnight. partly cloudy in the evening then becoming
clear. waves 3 to 5 feet subsiding to 2 to 3 feet in the late
evening and overnight.
.thursday...northwest winds 10 to 15 knots. sunny. waves 1 to
2 feet.
.thursday night...west winds 5 to 15 knots backing south in the late
evening and overnight. partly cloudy. waves around 1 foot.
.friday...south winds 15 to 20 knots increasing to 30 knots in the
late morning and afternoon. partly sunny. waves 2 to 3 feet building
to 5 to 7 feet in the late morning and afternoon.
.friday night...south winds to 30 knots. partly cloudy. waves 5 to
7 feet.
.saturday...south winds 10 to 20 knots. partly sunny. waves 3 to
5 feet subsiding to 1 to 3 feet early in the afternoon.
.sunday...east winds 10 to 15 knots. mostly sunny with a chance of
rain showers. waves 1 foot or less.
.monday...south winds to 30 knots. partly sunny with a chance of
rain showers. waves 6 to 8 feet.
$$
(9/16)
Latest Nearshore Marine Forecast by KIWX
Issued 5/13/2026 10:59 AM America/New_York.
Valid through 5/13/2026 4:15 PM America/New_York.
fzus53 kiwx 131459
nshiwx
expires:202605132015;;493426
nearshore marine forecast
national weather service northern indiana
1059 am edt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
lmz043-132015-
new buffalo mi to st joseph mi-
1059 am edt wed may 13 2026
...small craft advisory in effect through late tonight...
.this afternoon...northwest winds 15 to 25 knots. partly sunny.
waves 2 to 4 feet building to 3 to 6 feet.
.tonight...north winds 10 to 20 knots becoming northwest at 5 to
15 knots late. waves 3 to 5 feet subsiding to 2 to 3 feet.
.thursday...northwest winds 5 to 10 knots. sunny. waves 1 to
2 feet.
.thursday night...north winds 10 knots or less becoming
southeast. mostly clear in the evening, then becoming mostly
cloudy. waves around 1 foot.
the water temperature at st. joseph is 51 degrees and at michigan
city is 53 degrees.
$$
(10/16)
Latest Nearshore Marine Forecast by KIWX
Issued 5/13/2026 10:59 AM America/New_York.
Valid through 5/13/2026 4:15 PM America/New_York.
fzus53 kiwx 131459
nshiwx
expires:202605132015;;493425
nearshore marine forecast
national weather service northern indiana
1059 am edt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
lmz046-132015-
michigan city in to new buffalo mi-
1059 am edt wed may 13 2026
...small craft advisory in effect through late tonight...
.this afternoon...northwest winds 15 to 25 knots becoming north
10 to 20 knots. partly sunny. waves 2 to 4 feet building to 3 to 5
feet.
.tonight...north winds 10 to 20 knots becoming northwest at 5 to
15 knots late. mostly clear. waves 3 to 5 feet subsiding to 2 to 4
feet.
.thursday...northwest winds 10 knots or less. sunny. waves 1 to
2 feet.
.thursday night...northeast winds 10 knots or less becoming
southeast. mostly clear in the evening, then becoming mostly
cloudy. waves around 1 foot.
the water temperature at st. joseph is 51 degrees and at michigan
city is 53 degrees.
$$
(11/16)
Latest Nearshore Marine Forecast by KLOT
Issued 5/13/2026 1:35 PM US/Central.
Valid through 5/13/2026 10:15 PM US/Central.
fzus53 klot 131835
nshlot
expires:202605140315;;503463
nearshore marine forecast
national weather service chicago/romeoville il
135 pm cdt wed may 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>745-140315-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
135 pm cdt wed may 13 2026
...small craft advisory in effect until 1 am cdt thursday...
.tonight...north winds 15 to 25 kt becoming northwest and
diminishing to around 10 kt. decreasing cloud cover. waves 3 to 6
ft occasionally to 9 ft decreasing to 2 to 4 ft.
.thursday...northwest winds around 10 kt becoming north in the
afternoon. sunny. waves 1 to 3 ft.
.thursday night...east winds 10 to 15 kt becoming south
overnight. mostly clear in the evening, then becoming mostly
cloudy. waves 1 to 2 ft.
.friday...south winds 15 to 25 kt. chance of showers in the
morning. waves 1 to 3 ft.
$$
(12/16)
Latest Nearshore Marine Forecast by KLOT
Issued 5/13/2026 1:35 PM US/Central.
Valid through 5/13/2026 10:15 PM US/Central.
fzus53 klot 131835
nshlot
expires:202605140315;;503462
nearshore marine forecast
national weather service chicago/romeoville il
135 pm cdt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.
lmz740>742-140315-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
135 pm cdt wed may 13 2026
.tonight...northeast winds 10 to 20 kt becoming northwest and
diminishing to around 10 kt. decreasing cloud cover. waves 1 to 3
ft.
.thursday...northwest winds around 10 kt becoming east in the
afternoon. sunny. waves 1 to 2 ft.
.thursday night...southeast winds 10 to 15 kt becoming south
overnight. slight chance of showers overnight. waves 1 to 2 ft.
.friday...south winds 15 to 25 kt. slight chance of showers in
the morning. waves 2 to 4 ft.
$$
(13/16)
Latest Nearshore Marine Forecast by KMKX
Issued 5/13/2026 1:10 PM US/Central.
Valid through 5/13/2026 5:00 PM US/Central.
fzus53 kmkx 131810
nshmkx
expires:202605132200;;500510
nearshore marine forecast
national weather service milwaukee/sullivan wi
110 pm cdt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
lmz644-132200-
port washington to north point light wi-
110 pm cdt wed may 13 2026
...small craft advisory in effect until 4 pm cdt this afternoon...
.rest of today...northwest wind 10 to 15 knots veering north late
in the afternoon. gusts up to 20 knots. mostly cloudy. waves 1 to
2 feet.
.tonight...north wind 5 to 10 knots becoming west late in the
evening, then becoming northwest after midnight becoming
northwest 5 to 10 knots early in the morning. partly cloudy
through around midnight then becoming clear. waves around 1 foot.
.thursday...northwest wind 5 to 10 knots backing southeast late
in the afternoon. sunny. waves around 1 foot.
.thursday night...southeast wind 5 to 10 knots veering south late
in the evening, then rising to 10 to 15 knots after midnight.
chance of showers after midnight. waves 1 to 2 feet.
$$
(14/16)
Latest Nearshore Marine Forecast by KMKX
Issued 5/13/2026 1:10 PM US/Central.
Valid through 5/13/2026 5:00 PM US/Central.
fzus53 kmkx 131810
nshmkx
expires:202605132200;;500511
nearshore marine forecast
national weather service milwaukee/sullivan wi
110 pm cdt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
lmz645-132200-
north point light to wind point wi-
110 pm cdt wed may 13 2026
...small craft advisory in effect until 4 pm cdt this afternoon...
.rest of today...north wind 10 to 15 knots. gusts up to 20 knots.
mostly cloudy. waves 1 to 3 feet.
.tonight...north wind 5 to 10 knots becoming northwest late in
the evening, then rising to 5 to 10 knots after midnight becoming
northwest 5 to 10 knots early in the morning. partly cloudy
through around midnight then becoming clear. waves 1 to 2 feet.
.thursday...northwest wind 5 to 10 knots veering southeast late
in the afternoon. sunny. waves around 1 foot.
.thursday night...southeast wind 5 to 10 knots veering south late
in the evening, then rising to 10 to 15 knots after midnight.
chance of showers after midnight. waves 1 to 2 feet.
$$
(15/16)
Latest Nearshore Marine Forecast by KMKX
Issued 5/13/2026 1:10 PM US/Central.
Valid through 5/13/2026 5:00 PM US/Central.
fzus53 kmkx 131810
nshmkx
expires:202605132200;;500512
nearshore marine forecast
national weather service milwaukee/sullivan wi
110 pm cdt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
lmz646-132200-
wind point wi to winthrop harbor il-
110 pm cdt wed may 13 2026
...small craft advisory in effect until 4 pm cdt this afternoon...
.rest of today...north wind 5 to 10 knots. gusts up to 20 knots
late in the afternoon. mostly cloudy. waves 1 to 2 feet.
.tonight...north wind 5 to 10 knots becoming northwest late in
the evening, then rising to 5 to 10 knots after midnight becoming
northwest 5 to 10 knots early in the morning. partly cloudy
through around midnight then becoming clear. waves 1 to 2 feet.
.thursday...northwest wind 5 to 10 knots veering southeast late
in the afternoon. sunny. waves around 1 foot.
.thursday night...southeast wind 5 to 10 knots becoming south
10 to 15 knots after midnight. chance of showers after midnight.
waves 1 to 2 feet.
$$
(16/16)
Latest Nearshore Marine Forecast by KMKX
Issued 5/13/2026 1:10 PM US/Central.
Valid through 5/13/2026 5:00 PM US/Central.
fzus53 kmkx 131810
nshmkx
expires:202605132200;;500509
nearshore marine forecast
national weather service milwaukee/sullivan wi
110 pm cdt wed may 13 2026
for waters within five nautical miles of shore on lake michigan
lmz643-132200-
sheboygan to port washington wi-
110 pm cdt wed may 13 2026
...small craft advisory in effect until 4 pm cdt this afternoon...
.rest of today...north wind 10 to 15 knots. gusts up to 20 knots.
mostly cloudy. waves 1 to 2 feet.
.tonight...north wind 5 to 10 knots backing northwest late in the
evening, then becoming northwest 5 to 10 knots after midnight.
mostly clear. waves 1 to 2 feet.
.thursday...northwest wind 5 to 10 knots backing southeast late
in the afternoon. sunny. waves around 1 foot.
.thursday night...south wind 5 to 10 knots rising to 10 to
15 knots after midnight, then becoming 10 to 20 knots early in
the morning. chance of showers after midnight. waves around
1 foot building to 2 to 4 feet early in the morning.
$$
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