fzus53 kapx 171842
nshapx
expires:202605180700;;724400

nearshore marine forecast
national weather service gaylord mi
242 pm edt sun may 17 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.


lmz346-180700-
manistee to point betsie mi-
242 pm edt sun may 17 2026

...small craft advisory in effect from 8 pm edt this evening
through monday evening...

.tonight...south wind 10 to 20 knots. gusts to 25 knots. rain 
showers likely and a chance of thunderstorms early in the evening,
then slight chance of showers and thunderstorms after midnight. 
waves 2 feet or less building to 3 to 5 feet after midnight. 
.monday...south wind 10 to 20 knots. gusts to 25 knots. chance of
showers and slight chance of thunderstorms. waves 4 to 6 feet. 
.monday night...south wind 10 to 20 knots. chance of showers and
thunderstorms. waves 4 to 6 feet. 
.tuesday...southwest wind 15 to 25 knots. rain showers likely.
waves 5 to 8 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 172002
nshgrb
expires:202605180400;;727370

nearshore marine forecast
national weather service green bay wi
301 pm cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz542-543-180400-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
301 pm cdt sun may 17 2026

...small craft advisory in effect through late tuesday night...

.late this afternoon...ne wind 10 to 15 kts. waves 3 to 5 ft.
rain showers likely and a chance of thunderstorms. 
.tonight...e wind 10 to 15 kts veering s 15 to 25 kts in the late
evening and overnight. waves 4 to 7 ft. patchy dense fog. a
chance of showers and a slight chance of thunderstorms. 
.monday...s wind 15 to 25 kts. waves 5 to 8 ft. a chance of
showers and thunderstorms. 
.monday night...s wind 10 to 15 kts increasing to 15 to 25 kts in
the late evening and overnight. waves 4 to 7 ft. a chance of
showers in the evening. a chance of thunderstorms. rain showers
after midnight. 
.tuesday...s wind 15 to 25 kts veering w early in the afternoon.
waves 5 to 8 ft subsiding to 4 to 7 ft in the afternoon. a chance
of showers in the morning.  

$$

fzus53 kgrr 171936
nshgrr
expires:202605180800;;726664

nearshore marine forecast
national weather service grand rapids mi
336 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz845-180800-
south haven to holland mi-
336 pm edt sun may 17 2026

.through early evening...south winds 10 to 15 knots. mostly cloudy.
waves 1 foot or less. 
.tonight...south winds 15 to 25 knots. partly cloudy. waves 2 to
4 feet.
.monday...south winds 20 to 25 knots. rain showers likely and a
chance of thunderstorms. waves 3 to 5 feet. 
.monday night...south winds 15 to 25 knots. mostly cloudy with a
chance of showers and thunderstorms. waves 3 to 5 feet. 
.tuesday...south winds to 30 knots veering southwest 20 to 25 knots
early in the afternoon. partly sunny with rain showers likely and a
chance of thunderstorms. waves 4 to 6 feet. 
.tuesday night...west winds 20 to 25 knots veering northwest in the
late evening and overnight. mostly cloudy. waves 3 to 5 feet. 
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.thursday...east winds 10 to 15 knots backing northeast early in the
afternoon. mostly sunny. waves around 1 foot. 
.friday...east winds 10 to 15 knots backing north early in the
afternoon. mostly cloudy. waves 1 foot or less. 

$$

fzus53 kgrr 171936
nshgrr
expires:202605180800;;726663

nearshore marine forecast
national weather service grand rapids mi
336 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz846-180800-
holland to grand haven mi-
336 pm edt sun may 17 2026

...small craft advisory in effect from 11 pm edt this evening
through monday evening...

.through early evening...south winds 10 to 15 knots. mostly cloudy
with a slight chance of showers and thunderstorms. waves 1 foot or
less. 
.tonight...south winds 15 to 25 knots. partly cloudy. waves 1 to
3 feet building to 3 to 5 feet in the late evening and overnight. 
.monday...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. waves 4 to 6 feet. 
.monday night...south winds 20 to 25 knots. mostly cloudy with rain
showers likely and a chance of thunderstorms. waves 4 to 6 feet. 
.tuesday...south winds to 30 knots veering southwest early in the
afternoon. rain showers likely and a chance of thunderstorms. waves
6 to 8 feet. 
.tuesday night...northwest winds 20 to 25 knots becoming around
20 knots after midnight. mostly cloudy. waves 4 to 6 feet. 
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 2 to
4 feet. 
.thursday...northeast winds 10 to 15 knots. mostly sunny. waves
1 foot or less. 
.friday...east winds 10 to 15 knots backing northeast early in the
afternoon. mostly cloudy. waves around 1 foot. 

$$

fzus53 kgrr 171936
nshgrr
expires:202605180800;;726662

nearshore marine forecast
national weather service grand rapids mi
336 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz847-180800-
grand haven to whitehall mi-
336 pm edt sun may 17 2026

...small craft advisory in effect from 11 pm edt this evening
through monday evening...

.through early evening...southeast winds 10 to 15 knots. mostly
cloudy with a slight chance of showers and thunderstorms. waves
around 1 foot. 
.tonight...south winds 15 to 25 knots increasing to 30 knots after
midnight. mostly cloudy with a slight chance of showers and
thunderstorms in the evening, then partly cloudy after midnight.
waves 2 to 3 feet building to 4 to 6 feet in the late evening and
overnight. 
.monday...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. waves 5 to 7 feet. 
.monday night...south winds to 30 knots. mostly cloudy with a chance
of showers and thunderstorms. waves 4 to 6 feet. 
.tuesday...south winds to 30 knots veering southwest early in the
afternoon. rain showers and a chance of thunderstorms. waves 6 to
8 feet. 
.tuesday night...northwest winds 20 to 25 knots veering north after
midnight. partly cloudy. waves 5 to 7 feet. 
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 2 to
4 feet. 
.thursday...east winds 10 to 15 knots backing north early in the
afternoon. mostly sunny. waves 1 foot or less. 
.friday...east winds 10 to 15 knots backing northeast early in the
afternoon. partly sunny. waves 1 foot or less. 

$$

fzus53 kgrr 171936
nshgrr
expires:202605180800;;726661

nearshore marine forecast
national weather service grand rapids mi
336 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz848-180800-
whitehall to pentwater mi-
336 pm edt sun may 17 2026

...small craft advisory in effect from 11 pm edt this evening
through monday evening...

.through early evening...southeast winds around 15 knots. rain
showers likely and a chance of thunderstorms. waves around 1 foot. 
.tonight...south winds 15 to 25 knots increasing to 30 knots after
midnight. mostly cloudy in the evening then becoming partly cloudy.
a chance of showers and thunderstorms. waves 2 to 3 feet building to
4 to 6 feet in the late evening and overnight. 
.monday...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. waves 6 to 8 feet. 
.monday night...south winds to 30 knots. rain showers and a chance
of thunderstorms. waves 5 to 7 feet. 
.tuesday...south winds to 30 knots veering southwest early in the
afternoon. rain showers and a chance of thunderstorms. waves 6 to
9 feet. 
.tuesday night...northwest winds 20 to 25 knots veering north after
midnight. partly cloudy. waves 5 to 7 feet. 
.wednesday...north winds 20 to 25 knots. mostly sunny. waves 2 to
4 feet. 
.thursday...northeast winds 5 to 10 knots backing northwest 10 to
15 knots early in the afternoon. mostly sunny. waves around 1 foot. 
.friday...east winds 10 to 15 knots backing northeast early in the
afternoon. partly sunny. waves 1 foot or less. 

$$

fzus53 kgrr 171936
nshgrr
expires:202605180800;;726660

nearshore marine forecast
national weather service grand rapids mi
336 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz849-180800-
pentwater to manistee mi-
336 pm edt sun may 17 2026

...small craft advisory in effect from 11 pm edt this evening
through monday evening...

.through early evening...northeast winds 10 to 15 knots. rain
showers likely and a chance of thunderstorms. waves 1 to 2 feet. 
.tonight...east winds 10 to 20 knots becoming south to 30 knots in
the late evening and overnight. mostly cloudy in the evening then
becoming partly cloudy. a chance of showers and thunderstorms. waves
1 to 2 feet building to 4 to 6 feet. 
.monday...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. waves 5 to 7 feet. 
.monday night...south winds to 30 knots. mostly cloudy with a chance
of showers and thunderstorms. waves 4 to 6 feet. 
.tuesday...south winds to 30 knots veering southwest early in the
afternoon. rain showers likely and a slight chance of thunderstorms.
waves 6 to 8 feet. 
.tuesday night...northwest winds 15 to 25 knots veering north after
midnight. partly cloudy. waves 5 to 7 feet subsiding to 2 to 4 feet
after midnight. 
.wednesday...north winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet. 
.thursday...northeast winds 5 to 10 knots backing north 10 to
15 knots early in the afternoon. sunny. waves 1 foot or less. 
.friday...east winds 10 to 15 knots backing north early in the
afternoon. partly sunny. waves 1 foot or less. 

$$

fzus53 kgrr 171936
nshgrr
expires:202605180800;;726665

nearshore marine forecast
national weather service grand rapids mi
336 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz844-180800-
st joseph to south haven mi-
336 pm edt sun may 17 2026

.through early evening...south winds 10 to 15 knots. partly sunny.
waves 1 to 2 feet. 
.tonight...south winds 15 to 20 knots. partly cloudy. waves 1 to
3 feet. 
.monday...south winds 20 to 25 knots. partly sunny with a chance of
showers and thunderstorms. waves 2 to 4 feet.
.monday night...south winds 15 to 25 knots. mostly cloudy with a
chance of showers and thunderstorms. waves 2 to 4 feet. 
.tuesday...south winds 20 to 25 knots veering southwest early in the
afternoon. partly sunny with a chance of showers and thunderstorms.
waves 3 to 5 feet. 
.tuesday night...west winds 15 to 20 knots veering northwest in the
late evening and overnight. mostly cloudy. waves 3 to 5 feet. 
.wednesday...north winds around 20 knots. mostly sunny. waves 3 to
5 feet. 
.thursday...east winds 10 to 15 knots backing northeast early in the
afternoon. mostly sunny. waves 1 to 2 feet. 
.friday...east winds 10 to 15 knots backing north early in the
afternoon. mostly cloudy. waves 1 foot or less. 

$$

fzus53 kiwx 171948
nshiwx
expires:202605180230;;726923

nearshore marine forecast
national weather service northern indiana
348 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz046-180230-
michigan city in to new buffalo mi-
348 pm edt sun may 17 2026

.tonight...south winds 10 to 20 knots. a few gusts up to 25 knots
possible early this evening. mostly clear. waves 1 to 2 feet. 
.monday...south winds 10 to 15 knots increasing to 15 to
25 knots. a chance of showers with a slight chance of 
thunderstorms in the morning, then showers likely with a chance of
thunderstorms in the afternoon. waves 1 to 3 feet. 
.monday night...south winds 15 to 25 knots. showers likely with 
a chance of thunderstorms in the evening, then a chance of showers
overnight. waves 1 to 3 feet. 
.tuesday...south winds 15 to 25 knots becoming southwest 10 to
15 knots. a chance of showers in the morning, then showers with a
chance of thunderstorms in the afternoon. waves 1 to 3 feet 
building to 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 53 degrees and at michigan
city is 51 degrees.

$$

fzus53 kiwx 171948
nshiwx
expires:202605180230;;726924

nearshore marine forecast
national weather service northern indiana
348 pm edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz043-180230-
new buffalo mi to st joseph mi-
348 pm edt sun may 17 2026

.tonight...south winds 10 to 20 knots. a few gusts up to 25 knots
possible early this evening. partly cloudy. waves 1 to 3 feet. 
.monday...south winds 10 to 20 knots increasing to 15 to 25 
knots. a chance of showers with a slight chance of thunderstorms 
in the morning, then showers likely with a chance of thunderstorms
in the afternoon. waves 1 to 3 feet. 
.monday night...south winds 15 to 25 knots. showers likely with 
a chance of thunderstorms in the evening, then a chance of showers
overnight. waves 2 to 4 feet subsiding to 1 to 3 feet. 
.tuesday...south winds 15 to 25 knots becoming southwest. gusts
up to 30 knots. a chance of showers in the morning, then showers
likely with a chance of thunderstorms in the afternoon. waves
2 to 4 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 53 degrees and at michigan
city is 51 degrees.

$$

fzus53 klot 171955
nshlot
expires:202605180330;;727018

nearshore marine forecast
national weather service chicago/romeoville il
255 pm cdt sun may 17 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.


lmz740-180330-
winthrop harbor to wilmette harbor il-
255 pm cdt sun may 17 2026

.late this afternoon...northeast winds 10 to 20 kt. waves 1 to 3 
ft.
.tonight...south winds 15 to 25 kt. mostly cloudy in the evening,
then becoming partly cloudy. waves 2 to 4 ft. 
.monday...south winds 15 to 25 kt. showers likely and a chance of
thunderstorms in the morning, then showers and thunderstorms 
likely in the afternoon. waves 2 to 4 ft. 
.monday night...south winds 15 to 25 kt. chance of showers and 
thunderstorms. waves 2 to 4 ft. 
.tuesday...southwest winds 20 to 25 kt becoming west in the
afternoon. showers likely and slight chance of thunderstorms.
waves 3 to 5 ft subsiding to 2 to 4 ft. 

$$

fzus53 klot 171955
nshlot
expires:202605180330;;727019

nearshore marine forecast
national weather service chicago/romeoville il
255 pm cdt sun may 17 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.


lmz741-742-180330-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
255 pm cdt sun may 17 2026

...small craft advisory in effect until 10 pm cdt this evening...

.late this afternoon...south winds to 30 kt with a few 35 kt gales.
mostly cloudy. waves 2 to 4 ft. 
.tonight...south winds to 30 kt diminishing to 15 to 25 kt. 
partly cloudy. waves 2 to 4 ft. 
.monday...south winds 15 to 25 kt. showers likely and a chance of
thunderstorms in the morning, then showers and thunderstorms 
likely in the afternoon. waves 2 to 4 ft. 
.monday night...south winds 15 to 25 kt. chance of showers and 
thunderstorms. waves 2 to 4 ft. 
.tuesday...southwest winds 20 to 25 kt becoming west in the
afternoon. chance of showers and slight chance of thunderstorms
in the morning, then showers likely and a chance of thunderstorms
in the afternoon. waves 2 to 4 ft.  

$$

fzus53 klot 171955
nshlot
expires:202605180330;;727020

nearshore marine forecast
national weather service chicago/romeoville il
255 pm cdt sun may 17 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>745-180330-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
255 pm cdt sun may 17 2026

...small craft advisory in effect until 10 pm cdt this evening...

.late this afternoon...south winds to 30 kt with a few 35 kt
gales. mostly cloudy. waves 1 to 3 ft. 
.tonight...south winds to 30 kt diminishing to to 15 to 25 kt. 
partly cloudy in the evening then clearing. waves 1 to 3 ft. 
.monday...south winds 20 to 25 kt becoming southwest. chance of
showers and thunderstorms in the morning, then showers and
thunderstorms likely in the afternoon. waves 2 to 4 ft. a small
craft advisory may be needed. 
.monday night...south winds 15 to 25 kt. chance of showers and 
thunderstorms. waves 2 to 4 ft. 
.tuesday...southwest winds 20 to 25 kt. slight chance of showers 
and thunderstorms in the morning, then showers and a chance of 
thunderstorms in the afternoon. waves 2 to 4 ft. 

$$

fzus53 kmkx 172010
nshmkx
expires:202605180900;;728601

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz643-180900-
sheboygan to port washington wi-
310 pm cdt sun may 17 2026

.through early evening...northeast wind 10 to 15 knots. showers
and a chance of thunderstorms. patchy fog. waves 2 to 4 feet. 
.tonight...northeast wind 10 to 15 knots veering southeast with
gusts to around 20 knots late in the evening, then becoming south
15 to 20 knots after midnight. patchy fog through the night.
chance of showers and thunderstorms in the evening. chance of
showers and slight chance of thunderstorms early in the morning.
waves 3 to 4 feet building to 5 to 7 feet. 
.monday...south wind 15 to 20 knots becoming 10 to 20 knots late
in the morning, then rising to 15 to 25 knots early in the
afternoon becoming 15 to 20 knots late in the afternoon. slight
chance of thunderstorms in the morning. chance of showers through
the day. chance of thunderstorms in the afternoon. waves 5 to
7 feet subsiding to 4 to 6 feet late in the afternoon. a small
craft advisory may be needed. 
.monday night...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. slight chance of showers and thunderstorms
through around midnight, then showers and a chance of
thunderstorms after midnight. waves 4 to 6 feet. 
.tuesday...south wind 15 to 25 knots veering west late in the
afternoon. rain showers and slight chance of thunderstorms in the
morning. waves 5 to 7 feet subsiding to 4 to 6 feet in the
afternoon. 

$$

fzus53 kmkx 172010
nshmkx
expires:202605180900;;728604

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz646-180900-
wind point wi to winthrop harbor il-
310 pm cdt sun may 17 2026

.through early evening...east wind 10 to 15 knots veering
southeast late in the afternoon. cloudy with chance of showers
and slight chance of thunderstorms. patchy fog. waves 1 to 3 feet
building to 2 to 4 feet late in the afternoon. 
.tonight...southeast wind 10 to 15 knots becoming south 15 to
20 knots in the late evening and overnight. chance of showers and
slight chance of thunderstorms early in the morning. waves 3 to
4 feet. 
.monday...south wind 15 to 20 knots. gusts up to 25 knots. rain
showers likely in the morning. chance of thunderstorms through
the day. chance of showers in the afternoon. waves 3 to 4 feet. 
.monday night...south wind 15 to 20 knots. chance of showers
through around midnight. chance of thunderstorms through the
night. rain showers likely after midnight. waves 3 to 4 feet. 
.tuesday...south wind 15 to 25 knots veering southwest late in
the morning, then easing to 10 to 20 knots early in the afternoon
veering west 15 to 20 knots late in the afternoon. chance of
thunderstorms in the morning. rain showers likely through the
day. slight chance of thunderstorms in the afternoon. waves 3 to
5 feet subsiding to 3 to 4 feet in the late morning and
afternoon. a small craft advisory may be needed. 

$$

fzus53 kmkx 172010
nshmkx
expires:202605180900;;728602

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz644-180900-
port washington to north point light wi-
310 pm cdt sun may 17 2026

.through early evening...northeast wind 10 to 15 knots. showers
and slight chance of thunderstorms. patchy fog. waves 2 to
4 feet. 
.tonight...east wind 10 to 15 knots veering southeast with gusts
to around 20 knots late in the evening, then becoming south 15 to
20 knots after midnight. patchy fog until early morning. chance
of showers and slight chance of thunderstorms early in the
morning. waves 3 to 4 feet building to 4 to 6 feet after
midnight. 
.monday...south wind 15 to 20 knots becoming 10 to 20 knots early
in the afternoon, then becoming 15 to 20 knots late in the
afternoon. gusts up to 25 knots. chance of showers and
thunderstorms. waves 3 to 5 feet. 
.monday night...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. slight chance of showers and thunderstorms
through around midnight, then showers and a chance of
thunderstorms after midnight. waves 3 to 4 feet building to 3 to
5 feet early in the morning. a small craft advisory may be
needed. 
.tuesday...south wind 15 to 25 knots veering west late in the
afternoon. chance of showers in the morning. slight chance of
thunderstorms through the day. slight chance of showers in the
afternoon. waves 4 to 6 feet subsiding to 3 to 5 feet late in the
morning, then subsiding to 3 to 4 feet in the afternoon. 

$$

fzus53 kmkx 172010
nshmkx
expires:202605180900;;728603

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 pm cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz645-180900-
north point light to wind point wi-
310 pm cdt sun may 17 2026

.through early evening...northeast wind 10 to 15 knots veering
east late in the afternoon. cloudy with chance of showers and
slight chance of thunderstorms. patchy fog. waves 2 to 4 feet. 
.tonight...southeast wind 10 to 15 knots becoming south 15 to
20 knots in the late evening and overnight. chance of showers and
slight chance of thunderstorms early in the morning. waves 3 to
4 feet. 
.monday...south wind 15 to 20 knots becoming 10 to 20 knots in
the late morning and early afternoon, then becoming 15 to
20 knots late in the afternoon. gusts up to 25 knots. rain
showers likely in the morning. chance of thunderstorms through
the day. chance of showers in the afternoon. waves 3 to 4 feet. 
.monday night...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. chance of showers through around midnight.
chance of thunderstorms through the night. showers likely after
midnight. waves 3 to 4 feet. a small craft advisory may be
needed. 
.tuesday...south wind 15 to 25 knots veering southwest late in
the morning, then becoming southwest 15 to 25 knots early in the
afternoon veering west 15 to 20 knots late in the afternoon.
chance of thunderstorms in the morning. rain showers likely
through the day. slight chance of thunderstorms in the afternoon.
waves 3 to 5 feet subsiding to 3 to 4 feet in the afternoon. 

$$