(1/14)
Latest Nearshore Marine Forecast by KGRB
Issued 3/21/2026 11:56 PM US/Central.
Valid through 3/22/2026 5:00 AM US/Central.
fzus53 kgrb 220456
nshgrb
expires:202603221000;;091820
nearshore marine forecast
national weather service green bay wi
1156 pm cdt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz542-543-221000-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
1156 pm cdt sat mar 21 2026
...small craft advisory in effect from 7 am cdt sunday through
late sunday night...
.rest of tonight...n wind 10 to 20 kts. waves 2 to 4 ft. a slight
chance of light rain after midnight.
.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
after midnight. waves 3 to 5 ft subsiding to 2 to 4 ft after
midnight. partly cloudy.
.monday...n wind 5 to 10 kts veering se early in the afternoon.
waves 2 ft or less. sunny.
$$
(2/14)
Latest Nearshore Marine Forecast by KGRR
Issued 3/21/2026 10:58 PM America/New_York.
Valid through 3/22/2026 5:00 AM America/New_York.
fzus53 kgrr 220258
nshgrr
expires:202603220900;;088232
nearshore marine forecast
national weather service grand rapids mi
1058 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz848-220900-
whitehall to pentwater mi-
1058 pm edt sat mar 21 2026
...small craft advisory in effect from 8 am edt sunday through late
sunday night...
.rest of tonight...west winds around 15 knots veering north after
midnight. mostly cloudy. waves 2 to 4 feet.
.sunday...north winds to 30 knots. mostly cloudy with a chance of
rain showers. waves 5 to 7 feet.
.sunday night...north winds to 30 knots decreasing to 15 to 20 knots
after midnight. partly cloudy. waves 5 to 7 feet.
.monday...north winds 15 to 20 knots. partly sunny. waves 2 to
4 feet subsiding to 1 to 3 feet early in the afternoon.
.monday night...north winds 5 to 15 knots veering southeast in the
late evening and early morning, then veering south 10 to 20 knots
after midnight. partly cloudy. waves 1 to 2 feet.
.tuesday...south winds 15 to 25 knots. mostly cloudy. waves 2 to
4 feet.
.wednesday...southeast winds 15 to 25 knots. mostly cloudy. waves
1 to 3 feet.
.thursday...southwest winds to 30 knots veering northwest 20 to
25 knots early in the afternoon. mostly cloudy with a chance of rain
showers. waves 5 to 7 feet.
$$
(3/14)
Latest Nearshore Marine Forecast by KGRR
Issued 3/21/2026 10:58 PM America/New_York.
Valid through 3/22/2026 5:00 AM America/New_York.
fzus53 kgrr 220258
nshgrr
expires:202603220900;;088236
nearshore marine forecast
national weather service grand rapids mi
1058 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz844-220900-
st joseph to south haven mi-
1058 pm edt sat mar 21 2026
...small craft advisory in effect from sunday afternoon through
monday morning...
.rest of tonight...southwest winds 15 to 20 knots veering west after
midnight. mostly cloudy late in the evening then becoming 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
2 to 4 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.
$$
(4/14)
Latest Nearshore Marine Forecast by KGRR
Issued 3/21/2026 10:58 PM America/New_York.
Valid through 3/22/2026 5:00 AM America/New_York.
fzus53 kgrr 220258
nshgrr
expires:202603220900;;088235
nearshore marine forecast
national weather service grand rapids mi
1058 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz845-220900-
south haven to holland mi-
1058 pm edt sat mar 21 2026
...small craft advisory in effect from sunday afternoon through
monday morning...
.rest of tonight...southwest winds around 20 knots veering northwest
after midnight. mostly cloudy late in the evening then becoming
partly cloudy. waves 2 to 4 feet.
.sunday...north winds 15 to 25 knots. mostly cloudy with a chance of
rain showers. waves 2 to 3 feet building to 4 to 6 feet in the late
morning and afternoon.
.sunday night...north winds 15 to 25 knots. partly cloudy. waves
5 to 7 feet.
.monday...north winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet.
.monday night...north winds 10 to 15 knots veering southeast 5 to
10 knots after midnight. mostly clear. waves 1 to 3 feet.
.tuesday...south winds 10 to 20 knots veering southwest early in the
afternoon. partly sunny. waves 1 to 3 feet.
.wednesday...southeast winds 15 to 20 knots. mostly cloudy. waves
1 to 2 feet.
.thursday...southwest winds to 30 knots veering northwest 20 to
25 knots early in the afternoon. mostly cloudy with a chance of rain
showers. waves 4 to 6 feet.
$$
(5/14)
Latest Nearshore Marine Forecast by KGRR
Issued 3/21/2026 10:58 PM America/New_York.
Valid through 3/22/2026 5:00 AM America/New_York.
fzus53 kgrr 220258
nshgrr
expires:202603220900;;088234
nearshore marine forecast
national weather service grand rapids mi
1058 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz846-220900-
holland to grand haven mi-
1058 pm edt sat mar 21 2026
...small craft advisory in effect from sunday afternoon through
monday morning...
.rest of tonight...southwest winds 15 to 20 knots veering northwest
after midnight. 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 1 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 1 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.
$$
(6/14)
Latest Nearshore Marine Forecast by KGRR
Issued 3/21/2026 10:58 PM America/New_York.
Valid through 3/22/2026 5:00 AM America/New_York.
fzus53 kgrr 220258
nshgrr
expires:202603220900;;088233
nearshore marine forecast
national weather service grand rapids mi
1058 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz847-220900-
grand haven to whitehall mi-
1058 pm edt sat mar 21 2026
...small craft advisory in effect from 8 am edt sunday through late
sunday night...
.rest of tonight...west winds 15 to 20 knots veering northwest 10 to
15 knots after midnight. mostly cloudy. waves 2 to 4 feet.
.sunday...north winds to 30 knots. mostly cloudy with a chance of
rain showers. waves 4 to 6 feet.
.sunday night...north winds to 30 knots decreasing to 15 to 20 knots
after midnight. partly cloudy. waves 4 to 6 feet.
.monday...north winds 10 to 20 knots. mostly sunny. waves 2 to
4 feet subsiding to 1 to 3 feet in the late morning and afternoon.
.monday night...north winds 10 to 15 knots veering east 5 to
10 knots in the late evening and early morning, then veering south
10 to 15 knots after midnight. mostly clear. waves 1 to 2 feet.
.tuesday...south winds 15 to 25 knots. mostly cloudy. waves 2 to
4 feet.
.wednesday...southeast winds 15 to 20 knots. mostly cloudy. waves
1 to 3 feet.
.thursday...southwest winds to 30 knots veering northwest 20 to
25 knots early in the afternoon. mostly cloudy with a chance of rain
showers. waves 5 to 7 feet.
$$
(7/14)
Latest Nearshore Marine Forecast by KGRR
Issued 3/21/2026 10:58 PM America/New_York.
Valid through 3/22/2026 5:00 AM America/New_York.
fzus53 kgrr 220258
nshgrr
expires:202603220900;;088231
nearshore marine forecast
national weather service grand rapids mi
1058 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz849-220900-
pentwater to manistee mi-
1058 pm edt sat mar 21 2026
...small craft advisory in effect from 8 am edt sunday through late
sunday night...
.rest of tonight...west winds 10 to 20 knots veering north after
midnight. partly cloudy late 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 3 to
5 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.
$$
(8/14)
Latest Nearshore Marine Forecast by KIWX
Issued 3/21/2026 10:07 PM America/New_York.
Valid through 3/22/2026 4:15 AM America/New_York.
fzus53 kiwx 220207
nshiwx
expires:202603220815;;086776
nearshore marine forecast
national weather service northern indiana
1007 pm edt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz043-046-220815-
new buffalo mi to st joseph mi-michigan city in to new buffalo mi-
1007 pm edt sat mar 21 2026
...small craft advisory in effect from sunday afternoon through
monday afternoon...
.overnight...southwest winds 5 to 15 knots becoming west.
partly cloudy. waves 1 to 3 feet.
.sunday...north winds 10 to 15 knots increasing to 15 to
25 knots. gusts up to 30 knots. a chance of rain showers in the
afternoon. waves 1 to 2 feet building to 5 to 8 feet.
.sunday night...north winds 15 to 25 knots. gusts up to 30 knots.
a chance of rain showers in the evening. waves 6 to 9 feet
subsiding to 4 to 7 feet.
.monday...north winds 10 to 15 knots. mostly cloudy in the
morning, then becoming mostly sunny. waves 3 to 6 feet subsiding
to 2 to 4 feet.
the water temperature at st. joseph and at michigan city is 39
degrees.
$$
(9/14)
Latest Nearshore Marine Forecast by KLOT
Issued 3/21/2026 9:36 PM US/Central.
Valid through 3/22/2026 4:30 AM US/Central.
fzus53 klot 220236
nshlot
expires:202603220930;;087801
nearshore marine forecast
national weather service chicago/romeoville il
936 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>742-220930-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
936 pm cdt sat mar 21 2026
...small craft advisory in effect from 7 am cdt sunday through
monday afternoon...
.rest of tonight...southwest winds 15 to 25 kt becoming north
overnight. partly 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
possible in the afternoon. patchy fog. slight chance of showers
in the morning, then chance of showers in the afternoon. 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 kts 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.
$$
(10/14)
Latest Nearshore Marine Forecast by KLOT
Issued 3/21/2026 9:36 PM US/Central.
Valid through 3/22/2026 4:30 AM US/Central.
fzus53 klot 220236
nshlot
expires:202603220930;;087802
nearshore marine forecast
national weather service chicago/romeoville il
936 pm cdt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the waves, along with the
average height of the highest 10 percent of the waves which will
occasionally be encountered.
lmz743>745-220930-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
936 pm cdt sat mar 21 2026
...small craft advisory in effect from sunday morning through
monday afternoon...
.rest of tonight...southwest winds 10 to 20 kt becoming northwest
late. partly cloudy. waves 1 to 3 ft.
.sunday...north winds 15 to 25 kt increasing to 30 kt during the
morning. a few gale force gusts to 35 kt possible in the afternoon.
patchy fog. slight chance of showers in the morning, then chance
of showers in the afternoon. waves 4 to 6 ft occasionally to 8 ft
building to 7 to 10 ft occasionally to 13 ft.
.sunday night...north winds to 30 kt with a few gale force gusts
to 35 kt in the evening, diminishing to 20 to 25 kt after midnight.
mostly cloudy. waves 8 to 12 ft occasionally to 16 ft subsiding
to 7 to 10 ft occasionally to 13 ft.
.monday...north winds 10 to 20 kt. mostly cloudy in the morning,
then becoming partly cloudy. waves 4 to 7 ft occasionally to 9 ft
subsiding to 3 to 5 ft.
$$
(11/14)
Latest Nearshore Marine Forecast by KMKX
Issued 3/21/2026 11:11 PM US/Central.
Valid through 3/22/2026 5:00 AM US/Central.
fzus53 kmkx 220411
nshmkx
expires:202603221000;;090943
nearshore marine forecast
national weather service milwaukee/sullivan wi
1111 pm cdt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz643-221000-
sheboygan to port washington wi-
1111 pm cdt sat mar 21 2026
...small craft advisory in effect from 7 am cdt sunday through
late sunday night...
.rest of tonight...north wind 10 to 15 knots with gusts to around
20 knots rising to 15 to 20 knots with gusts to around 30 knots
early in the morning. slight chance of rain. waves 1 to 2 feet
building to 2 to 4 feet early in the morning.
.sunday...north wind 15 to 25 knots with gusts to around
30 knots. chance of sprinkles and flurries in the morning. waves
3 to 5 feet building to 5 to 7 feet.
.sunday night...north wind 15 to 25 knots becoming 15 to 20 knots
after midnight. partly cloudy. waves 5 to 7 feet subsiding to
4 to 6 feet late in the evening, then subsiding to 3 to 5 feet
after midnight subsiding to 3 to 4 feet early in the morning.
.monday...north wind 10 to 15 knots easing to 5 to 10 knots early
in the afternoon, then veering east late in the afternoon. sunny.
waves 2 to 4 feet subsiding to 1 to 2 feet in the late morning
and afternoon.
$$
(12/14)
Latest Nearshore Marine Forecast by KMKX
Issued 3/21/2026 11:11 PM US/Central.
Valid through 3/22/2026 5:00 AM US/Central.
fzus53 kmkx 220411
nshmkx
expires:202603221000;;090944
nearshore marine forecast
national weather service milwaukee/sullivan wi
1111 pm cdt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz644-221000-
port washington to north point light wi-
1111 pm cdt sat mar 21 2026
...small craft advisory in effect from 7 am cdt sunday through
late sunday night...
.rest of tonight...northwest wind 10 to 15 knots becoming north
15 to 20 knots early in the morning. gusts up to 25 knots. mostly
cloudy. waves around 1 foot building to 2 to 4 feet early in the
morning.
.sunday...north wind 15 to 25 knots with gusts to around
30 knots. chance of sprinkles through the day. slight chance of
flurries in the afternoon. waves 3 to 5 feet building to 6 to
8 feet.
.sunday night...north wind 15 to 25 knots becoming 15 to 20 knots
early in the morning. partly cloudy. waves 6 to 8 feet subsiding
to 3 to 5 feet.
.monday...north wind 10 to 15 knots easing to 5 to 10 knots early
in the afternoon, then veering east late in the afternoon. sunny.
waves 3 to 4 feet subsiding to 1 to 2 feet in the afternoon.
$$
(13/14)
Latest Nearshore Marine Forecast by KMKX
Issued 3/21/2026 11:11 PM US/Central.
Valid through 3/22/2026 5:00 AM US/Central.
fzus53 kmkx 220411
nshmkx
expires:202603221000;;090945
nearshore marine forecast
national weather service milwaukee/sullivan wi
1111 pm cdt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz645-221000-
north point light to wind point wi-
1111 pm cdt sat mar 21 2026
...small craft advisory in effect from 7 am cdt sunday through
late sunday night...
.rest of tonight...west wind 10 to 15 knots becoming north 15 to
20 knots with gusts to around 25 knots early in the morning.
partly cloudy. waves around 1 foot building to 2 to 4 feet early
in the morning.
.sunday...north wind 15 to 25 knots rising to up to 30 knots late
in the afternoon. chance of sprinkles through the day. slight
chance of flurries in the afternoon. waves 3 to 5 feet building
to 6 to 8 feet.
.sunday night...north wind up to 30 knots easing to 15 to
25 knots in the late evening and early morning, then 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 20 knots becoming 10 to 15 knots late
in the morning, then easing to 5 to 10 knots early in the
afternoon veering northeast late in the afternoon. mostly sunny.
waves 3 to 5 feet subsiding to 1 to 2 feet.
$$
(14/14)
Latest Nearshore Marine Forecast by KMKX
Issued 3/21/2026 11:11 PM US/Central.
Valid through 3/22/2026 5:00 AM US/Central.
fzus53 kmkx 220411
nshmkx
expires:202603221000;;090946
nearshore marine forecast
national weather service milwaukee/sullivan wi
1111 pm cdt sat mar 21 2026
for waters within five nautical miles of shore on lake michigan
lmz646-221000-
wind point wi to winthrop harbor il-
1111 pm cdt sat mar 21 2026
...small craft advisory in effect from 7 am cdt sunday through
late sunday night...
.rest of tonight...west wind 10 to 15 knots becoming north 15 to
20 knots early in the morning. gusts up to 25 knots. partly
cloudy. waves 1 to 2 feet.
.sunday...north wind 15 to 25 knots rising to up to 30 knots late
in the afternoon. chance of sprinkles through the day. waves 3 to
5 feet building to 6 to 8 feet.
.sunday night...north wind up to 30 knots easing to 15 to
25 knots in the late evening and early morning, then becoming
15 to 20 knots early in the morning. mostly cloudy. waves 7 to
9 feet subsiding to 4 to 6 feet.
.monday...north wind 10 to 20 knots becoming 10 to 15 knots late
in the morning, then easing to 5 to 10 knots early in the
afternoon veering northeast late in the afternoon. partly sunny
in the morning then clearing. waves 3 to 5 feet subsiding to 1 to
2 feet.
$$
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