(1/15)
Latest Nearshore Marine Forecast by KAPX
Issued 3/21/2026 2:55 PM America/New_York.
Valid through 3/21/2026 11:00 PM America/New_York.
fzus53 kapx 211855
nshapx
expires:202603220300;;071990
nearshore marine forecast
national weather service gaylord mi
255 pm edt sat mar 21 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.
lmz345-346-220300-
point betsie to sleeping bear point mi-
manistee to point betsie mi-
255 pm edt sat mar 21 2026
.through early evening...south wind 10 to 15 knots rising to
15 to 20 knots early in the evening. slight chance of drizzle.
waves 2 to 3 feet.
.tonight...northwest wind 15 to 20 knots. rain likely. waves 2 to
3 feet.
.sunday...north wind 10 to 20 knots. mostly cloudy. waves 3 to
5 feet.
.sunday night...north wind 15 to 20 knots. mostly cloudy. waves
3 to 5 feet.
.monday...northwest wind 5 to 10 knots. mostly sunny. waves 2 to
3 feet.
see the open lakes forecast for days 3 through 5.
$$
(2/15)
Latest Nearshore Marine Forecast by KGRB
Issued 3/21/2026 2:31 PM US/Central.
Valid through 3/21/2026 5:00 PM US/Central.
fzus53 kgrb 211931
nshgrb
expires:202603212200;;073455
nearshore marine forecast
national weather service green bay wi
231 pm cdt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz542-543-212200-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
231 pm cdt sat mar 21 2026
...small craft advisory in effect until 7 pm cdt this evening...
...small craft advisory in effect from sunday morning through
late sunday night...
.this afternoon...s wind 15 to 25 kts. waves 3 to 5 ft. partly
cloudy.
.tonight...w wind 5 to 10 kts veering n 10 to 15 kts in the late
evening and overnight. waves 3 to 5 ft subsiding to 1 to 3 ft
after midnight. a chance of light rain and light sleet after
midnight. a small craft advisory may be needed.
.sunday...n wind 15 to 25 kts. waves 4 to 7 ft. mostly cloudy.
.sunday night...n wind 15 to 25 kts decreasing to 10 to 15 kts in
the late evening and overnight. waves 4 to 7 ft subsiding to 2 to
4 ft after midnight. partly cloudy.
$$
(3/15)
Latest Nearshore Marine Forecast by KGRR
Issued 3/21/2026 3:38 PM America/New_York.
Valid through 3/22/2026 4:00 AM America/New_York.
fzus53 kgrr 211938
nshgrr
expires:202603220800;;073662
nearshore marine forecast
national weather service grand rapids mi
338 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz848-220800-
whitehall to pentwater mi-
338 pm edt sat mar 21 2026
...small craft advisory in effect from sunday morning through late
sunday night...
.through early evening...south winds 20 to 25 knots. mostly sunny.
waves 2 to 4 feet.
.tonight...south winds 15 to 25 knots veering west in the late
evening and early morning, then veering north 10 to 20 knots after
midnight. partly cloudy in the evening then becoming mostly cloudy.
waves 2 to 4 feet.
.sunday...north winds to 30 knots. mostly cloudy with a chance of
rain showers. waves 4 to 6 feet building to 5 to 7 feet early in the
afternoon.
.sunday night...north winds to 30 knots decreasing to 15 to 20 knots
after midnight. partly cloudy. waves 5 to 7 feet.
.monday...north winds 15 to 20 knots. partly sunny. waves 2 to
4 feet subsiding to 1 to 3 feet early in the afternoon.
.monday night...north winds 5 to 15 knots veering southeast in the
late evening and early morning, then veering south 10 to 20 knots
after midnight. partly cloudy. waves 1 to 2 feet.
.tuesday...south winds 15 to 25 knots. mostly cloudy. waves 2 to
4 feet.
.wednesday...southeast winds 15 to 25 knots. mostly cloudy. waves
1 to 3 feet.
.thursday...southwest winds to 30 knots veering northwest 20 to
25 knots early in the afternoon. mostly cloudy with a chance of rain
showers. waves 5 to 7 feet.
$$
(4/15)
Latest Nearshore Marine Forecast by KGRR
Issued 3/21/2026 3:38 PM America/New_York.
Valid through 3/22/2026 4:00 AM America/New_York.
fzus53 kgrr 211938
nshgrr
expires:202603220800;;073666
nearshore marine forecast
national weather service grand rapids mi
338 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz844-220800-
st joseph to south haven mi-
338 pm edt sat mar 21 2026
...small craft advisory in effect from sunday afternoon through
monday morning...
.through early evening...south winds 15 to 20 knots. sunny. waves
1 to 2 feet.
.tonight...southwest winds 15 to 20 knots veering west after
midnight. partly cloudy. waves 2 to 3 feet.
.sunday...north winds 15 to 25 knots increasing to 30 knots early in
the afternoon. mostly cloudy with a chance of rain showers. waves
1 to 3 feet building to 6 to 8 feet.
.sunday night...north winds to 30 knots decreasing to 15 to 20 knots
after midnight. partly cloudy. waves 6 to 9 feet.
.monday...north winds 15 to 20 knots. partly sunny. waves 3 to
5 feet.
.monday night...north winds 10 to 15 knots veering southeast 5 to
10 knots after midnight. mostly clear. waves 1 to 3 feet.
.tuesday...south winds 10 to 15 knots veering southwest early in the
afternoon. partly sunny. waves around 1 foot.
.wednesday...southeast winds 10 to 20 knots. mostly cloudy. waves
around 1 foot.
.thursday...southwest winds 20 to 25 knots veering northwest early
in the afternoon. partly sunny with a chance of rain showers. waves
3 to 5 feet.
$$
(5/15)
Latest Nearshore Marine Forecast by KGRR
Issued 3/21/2026 3:38 PM America/New_York.
Valid through 3/22/2026 4:00 AM America/New_York.
fzus53 kgrr 211938
nshgrr
expires:202603220800;;073665
nearshore marine forecast
national weather service grand rapids mi
338 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz845-220800-
south haven to holland mi-
338 pm edt sat mar 21 2026
...small craft advisory in effect from sunday afternoon through
monday morning...
.through early evening...south winds 15 to 20 knots. mostly sunny.
waves 1 to 2 feet.
.tonight...southwest winds 15 to 20 knots veering northwest after
midnight. partly cloudy. waves 2 to 4 feet.
.sunday...north winds 15 to 25 knots. mostly cloudy with a chance of
rain showers. waves 2 to 3 feet building to 4 to 6 feet.
.sunday night...north winds 15 to 25 knots. partly cloudy. waves
5 to 7 feet.
.monday...north winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet.
.monday night...north winds 10 to 15 knots veering southeast 5 to
10 knots after midnight. mostly clear. waves 1 to 3 feet.
.tuesday...south winds 10 to 20 knots veering southwest early in the
afternoon. partly sunny. waves 1 to 3 feet.
.wednesday...southeast winds 15 to 20 knots. mostly cloudy. waves
1 to 2 feet.
.thursday...southwest winds to 30 knots veering northwest 20 to
25 knots early in the afternoon. mostly cloudy with a chance of rain
showers. waves 4 to 6 feet.
$$
(6/15)
Latest Nearshore Marine Forecast by KGRR
Issued 3/21/2026 3:38 PM America/New_York.
Valid through 3/22/2026 4:00 AM America/New_York.
fzus53 kgrr 211938
nshgrr
expires:202603220800;;073663
nearshore marine forecast
national weather service grand rapids mi
338 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz847-220800-
grand haven to whitehall mi-
338 pm edt sat mar 21 2026
...small craft advisory in effect from sunday morning through late
sunday night...
.through early evening...south winds 15 to 20 knots. mostly sunny.
waves 2 to 3 feet.
.tonight...south winds around 20 knots veering west in the late
evening and early morning, then veering northwest 10 to 15 knots
after midnight. mostly cloudy. waves 2 to 4 feet.
.sunday...north winds to 30 knots. mostly cloudy with a chance of
rain showers. waves 3 to 6 feet.
.sunday night...north winds to 30 knots decreasing to 15 to 20 knots
after midnight. partly cloudy. waves 4 to 6 feet subsiding to 2 to
4 feet after midnight.
.monday...north winds 10 to 20 knots. mostly sunny. waves 2 to
3 feet.
.monday night...north winds 10 to 15 knots veering east 5 to
10 knots in the late evening and early morning, then veering south
10 to 15 knots after midnight. mostly clear. waves 1 to 2 feet.
.tuesday...south winds 15 to 25 knots. mostly cloudy. waves 2 to
4 feet.
.wednesday...southeast winds 15 to 20 knots. mostly cloudy. waves
1 to 3 feet.
.thursday...southwest winds to 30 knots veering northwest 20 to
25 knots early in the afternoon. mostly cloudy with a chance of rain
showers. waves 5 to 7 feet.
$$
(7/15)
Latest Nearshore Marine Forecast by KGRR
Issued 3/21/2026 3:38 PM America/New_York.
Valid through 3/22/2026 4:00 AM America/New_York.
fzus53 kgrr 211938
nshgrr
expires:202603220800;;073664
nearshore marine forecast
national weather service grand rapids mi
338 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz846-220800-
holland to grand haven mi-
338 pm edt sat mar 21 2026
...small craft advisory in effect from sunday afternoon through
monday morning...
.through early evening...south winds 15 to 20 knots. mostly sunny.
waves 1 to 3 feet.
.tonight...south winds around 20 knots veering northwest after
midnight. partly cloudy in the evening then becoming mostly cloudy.
waves 2 to 4 feet.
.sunday...north winds 15 to 25 knots. mostly cloudy with a chance of
rain showers. waves 2 to 3 feet building to 3 to 5 feet in the late
morning and afternoon.
.sunday night...north winds 15 to 25 knots. partly cloudy. waves
4 to 6 feet.
.monday...north winds 15 to 20 knots. mostly sunny. waves 2 to
3 feet.
.monday night...north winds 10 to 15 knots veering southeast after
midnight. mostly clear. waves 1 to 3 feet.
.tuesday...south winds 10 to 20 knots. mostly cloudy. waves 2 to
3 feet.
.wednesday...southeast winds 15 to 25 knots. mostly cloudy. waves
1 to 3 feet.
.thursday...southwest winds to 30 knots veering northwest 20 to
25 knots early in the afternoon. mostly cloudy with a chance of rain
showers. waves 4 to 6 feet.
$$
(8/15)
Latest Nearshore Marine Forecast by KGRR
Issued 3/21/2026 3:38 PM America/New_York.
Valid through 3/22/2026 4:00 AM America/New_York.
fzus53 kgrr 211938
nshgrr
expires:202603220800;;073661
nearshore marine forecast
national weather service grand rapids mi
338 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz849-220800-
pentwater to manistee mi-
338 pm edt sat mar 21 2026
...small craft advisory in effect from sunday morning through late
sunday night...
.through early evening...south winds 15 to 25 knots. partly sunny.
waves 2 to 4 feet.
.tonight...south winds 15 to 25 knots veering north 10 to 20 knots
after midnight. partly cloudy in the evening then becoming mostly
cloudy. waves 2 to 4 feet.
.sunday...north winds to 30 knots. mostly cloudy with a chance of
rain showers. waves 5 to 7 feet.
.sunday night...north winds to 30 knots decreasing to 15 to 20 knots
after midnight. mostly cloudy. waves 5 to 7 feet.
.monday...north winds 10 to 20 knots. partly sunny. waves 2 to
4 feet subsiding to 1 to 3 feet early in the afternoon.
.monday night...northeast winds 5 to 10 knots veering south 10 to
20 knots in the late evening and overnight. mostly clear. waves 1 to
2 feet.
.tuesday...south winds 15 to 25 knots. mostly cloudy. waves 2 to
4 feet.
.wednesday...east winds 15 to 25 knots veering southeast early in
the afternoon. mostly cloudy. waves 2 to 3 feet.
.thursday...southwest winds to 30 knots veering northwest in the
late morning and afternoon. mostly cloudy with a chance of rain
showers. waves 5 to 7 feet.
$$
(9/15)
Latest Nearshore Marine Forecast by KIWX
Issued 3/21/2026 2:42 PM America/New_York.
Valid through 3/22/2026 1:15 AM America/New_York.
fzus53 kiwx 211842
nshiwx
expires:202603220515;;071648
nearshore marine forecast
national weather service northern indiana
242 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz043-046-220515-
new buffalo mi to st joseph mi-michigan city in to new buffalo mi-
242 pm edt sat mar 21 2026
...small craft advisory in effect from sunday afternoon through
monday afternoon...
.tonight...southwest winds 5 to 15 knots becoming west. partly
cloudy. waves 1 to 3 feet.
.sunday...north winds 10 to 15 knots increasing to 15 to
25 knots. gusts up to 30 knots. a chance of rain showers in the
afternoon. waves 1 to 2 feet building to 5 to 8 feet.
.sunday night...north winds 15 to 25 knots. gusts up to 30 knots.
a chance of rain showers in the evening. waves 6 to 9 feet
subsiding to 4 to 7 feet.
.monday...north winds 10 to 15 knots. mostly cloudy in the
morning, then becoming mostly sunny. waves 3 to 6 feet subsiding
to 2 to 4 feet.
the water temperature at st. joseph and at michigan city is 39
degrees.
$$
(10/15)
Latest Nearshore Marine Forecast by KLOT
Issued 3/21/2026 2:50 PM US/Central.
Valid through 3/22/2026 1:00 AM US/Central.
fzus53 klot 211950
nshlot
expires:202603220600;;073907
nearshore marine forecast
national weather service chicago/romeoville il
250 pm cdt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.
lmz743>745-220600-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
250 pm cdt sat mar 21 2026
...small craft advisory in effect from sunday morning through
monday afternoon...
.tonight...southwest winds 15 to 20 kt becoming northwest late.
partly cloudy in the evening, then becoming mostly cloudy. waves 1
to 3 ft.
.sunday...north winds 15 to 25 kt increasing to 30 kt during the
morning. a few gale force gusts to 35 kt possible in the
afternoon. patchy fog. slight chance of showers in the morning,
then chance of showers in the afternoon. waves 4 to 6 ft
occasionally to 8 ft building to 7 to 10 ft occasionally to 13 ft.
.sunday night...north winds to 30 kt with a few gale force gusts
to 35 kt in the evening, diminishing to 20 to 25 kt after midnight.
mostly cloudy. waves 8 to 12 ft occasionally to 16 ft subsiding
to 7 to 10 ft occasionally to 13 ft.
.monday...north winds 10 to 20 kt. mostly cloudy in the morning,
then becoming partly cloudy. waves 4 to 7 ft occasionally to 9 ft
subsiding to 3 to 5 ft.
$$
(11/15)
Latest Nearshore Marine Forecast by KLOT
Issued 3/21/2026 2:50 PM US/Central.
Valid through 3/22/2026 1:00 AM US/Central.
fzus53 klot 211950
nshlot
expires:202603220600;;073906
nearshore marine forecast
national weather service chicago/romeoville il
250 pm cdt sat mar 21 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>742-220600-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
250 pm cdt sat mar 21 2026
...small craft advisory in effect from sunday morning through
monday afternoon...
.tonight...southwest winds 15 to 25 kt becoming north overnight.
mostly cloudy. waves 1 to 3 ft building to 3 to 5 ft by daybreak.
.sunday...north winds to 30 kt. a few gale force gusts to 35 kt
in the afternoon. patchy fog. chance of showers. waves 4 to 7 ft
occasionally to 9 ft building to 7 to 10 ft occasionally to 13 ft.
.sunday night...north winds to 30 kt with a few gale force gusts
to 35 kt in the evening, diminishing to 15 to 25 kt after midnight.
mostly cloudy. waves 7 to 10 ft occasionally to 13 ft subsiding
to 6 to 9 ft occasionally to 12 ft.
.monday...north winds 10 to 20 kt becoming northeast 10 to 15 kt.
mostly cloudy in the morning then clearing. waves 4 to 6 ft
occasionally to 8 ft subsiding to 2 to 4 ft.
$$
(12/15)
Latest Nearshore Marine Forecast by KMKX
Issued 3/21/2026 3:10 PM US/Central.
Valid through 3/22/2026 4:00 AM US/Central.
fzus53 kmkx 212010
nshmkx
expires:202603220900;;075287
nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz643-220900-
sheboygan to port washington wi-
310 pm cdt sat mar 21 2026
...small craft advisory in effect until 8 pm cdt this evening...
...small craft advisory in effect from sunday morning through
late sunday night...
.through early evening...south wind 15 to 20 knots. partly sunny.
waves 3 to 4 feet.
.tonight...southwest wind 10 to 15 knots with gusts to around
20 knots veering west late in the evening, then veering north
after midnight rising to 15 to 20 knots early in the morning.
slight chance of rain early in the morning. waves 3 to 4 feet
subsiding to 1 to 2 feet after midnight, then building to 2 to
4 feet early in the morning.
.sunday...north wind 15 to 25 knots with gusts to around
30 knots. slight chance of rain in the morning. waves 3 to 4 feet
building to 5 to 7 feet.
.sunday night...north wind 15 to 25 knots becoming 15 to 20 knots
after midnight, then becoming 10 to 20 knots early in the
morning. partly cloudy. waves 5 to 7 feet subsiding to 3 to
4 feet.
.monday...north wind 10 to 15 knots easing to 5 to 10 knots early
in the afternoon, then veering northeast late in the afternoon.
sunny. waves 2 to 4 feet subsiding to 1 to 2 feet in the late
morning and afternoon.
$$
(13/15)
Latest Nearshore Marine Forecast by KMKX
Issued 3/21/2026 3:10 PM US/Central.
Valid through 3/22/2026 4:00 AM US/Central.
fzus53 kmkx 212010
nshmkx
expires:202603220900;;075288
nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz644-220900-
port washington to north point light wi-
310 pm cdt sat mar 21 2026
...small craft advisory in effect until 8 pm cdt this evening...
...small craft advisory in effect from sunday morning through
late sunday night...
.through early evening...south wind 15 to 20 knots. mostly sunny.
waves 1 to 3 feet building to 2 to 4 feet late in the afternoon.
.tonight...southwest wind 15 to 20 knots becoming west 10 to
15 knots late in the evening, then veering north after midnight
rising to 15 to 20 knots early in the morning. mostly cloudy.
waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening
and early morning, then building to 2 to 4 feet early in the
morning.
.sunday...north wind 15 to 20 knots becoming 15 to 25 knots in
the late morning and afternoon. gusts up to 30 knots. slight
chance of rain in the morning. waves 3 to 4 feet building to 6 to
8 feet.
.sunday night...north wind 15 to 25 knots becoming 15 to 20 knots
after midnight, then becoming 10 to 20 knots early in the
morning. partly cloudy. waves 6 to 8 feet subsiding to 3 to
5 feet.
.monday...north wind 10 to 15 knots easing to 5 to 10 knots early
in the afternoon, then veering northeast late in the afternoon.
sunny. waves 3 to 4 feet subsiding to 1 to 2 feet in the
afternoon.
$$
(14/15)
Latest Nearshore Marine Forecast by KMKX
Issued 3/21/2026 3:10 PM US/Central.
Valid through 3/22/2026 4:00 AM US/Central.
fzus53 kmkx 212010
nshmkx
expires:202603220900;;075289
nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz645-220900-
north point light to wind point wi-
310 pm cdt sat mar 21 2026
...small craft advisory in effect until 8 pm cdt this evening...
...small craft advisory in effect from sunday morning through
late sunday night...
.through early evening...south wind 15 to 20 knots. mostly sunny.
waves 1 to 3 feet building to 2 to 4 feet late in the afternoon.
.tonight...southwest wind 10 to 15 knots with gusts to around
20 knots veering west late in the evening, then veering northwest
after midnight becoming north 15 to 20 knots early in the
morning. mostly cloudy. waves 1 to 2 feet building to 2 to 4 feet
early in the morning.
.sunday...north wind 10 to 20 knots rising to 15 to 25 knots in
the late morning and afternoon. gusts up to 30 knots. slight
chance of rain in the morning. waves 3 to 5 feet building to 7 to
9 feet.
.sunday night...north wind 15 to 25 knots with gusts to around
30 knots becoming 15 to 20 knots early in the morning. mostly
cloudy through around midnight then becoming partly cloudy. waves
7 to 9 feet subsiding to 4 to 6 feet.
.monday...north wind 10 to 15 knots easing to 5 to 10 knots early
in the afternoon, then veering northeast late in the afternoon.
mostly sunny. waves 3 to 5 feet subsiding to 1 to 3 feet.
$$
(15/15)
Latest Nearshore Marine Forecast by KMKX
Issued 3/21/2026 3:10 PM US/Central.
Valid through 3/22/2026 4:00 AM US/Central.
fzus53 kmkx 212010
nshmkx
expires:202603220900;;075290
nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz646-220900-
wind point wi to winthrop harbor il-
310 pm cdt sat mar 21 2026
...small craft advisory in effect until 8 pm cdt this evening...
...small craft advisory in effect from sunday morning through
late sunday night...
.through early evening...south wind 10 to 15 knots. mostly sunny.
waves 1 to 3 feet.
.tonight...southwest wind 10 to 15 knots with gusts to around
20 knots becoming southwest 10 to 15 knots late in the evening,
then veering northwest after midnight becoming north 15 to
20 knots early in the morning. mostly cloudy. waves around 1 foot
building to 2 to 4 feet early in the morning.
.sunday...north wind 15 to 20 knots becoming 15 to 25 knots in
the late morning and afternoon. gusts up to 30 knots. slight
chance of rain. waves 3 to 5 feet building to 7 to 9 feet.
.sunday night...north wind 15 to 25 knots with gusts to around
30 knots becoming 15 to 20 knots with gusts to around 25 knots
after midnight, then becoming north 15 to 20 knots early in the
morning. mostly cloudy through around midnight then becoming
partly cloudy. waves 7 to 9 feet subsiding to 4 to 6 feet.
.monday...north wind 10 to 15 knots easing to 5 to 10 knots early
in the afternoon, then veering northeast late in the afternoon.
partly sunny in the morning then clearing. waves 3 to 5 feet
subsiding to 1 to 2 feet.
$$
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