fzus53 kapx 170850
nshapx
expires:202605171700;;702195

nearshore marine forecast
national weather service gaylord mi
450 am 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.


lmz346-171700-
manistee to point betsie mi-
450 am edt sun may 17 2026

...small craft advisory in effect from this evening through
monday evening...

.today...northeast wind 10 to 15 knots. scattered showers in the
morning. rain showers and slight chance of thunderstorms in the
afternoon. waves 2 feet or less. 
.tonight...southeast wind 10 to 20 knots with gusts to 25 knots. 
chance of showers and thunderstorms. waves 3 to 5 feet. 
.monday...south wind 10 to 20 knots. chance of showers. waves
4 to 6 feet. 
.monday night...south wind 10 to 20 knots. rain showers and a
chance of thunderstorms. waves 4 to 6 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 171256
nshgrb
expires:202605171600;;710435

nearshore marine forecast
national weather service green bay wi
756 am cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz542-543-171600-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
756 am cdt sun may 17 2026

.today...ne wind 15 to 25 kts decreasing to 10 to 15 kts early in
the afternoon. waves 2 to 4 ft. a chance of showers in the
morning. a chance of thunderstorms. rain showers likely in the
afternoon. patchy fog in the afternoon. 
.tonight...e wind 10 to 15 kts veering s 15 to 25 kts in the late
evening and overnight. waves 2 to 4 ft building to 4 to 7 ft
after midnight. patchy fog. a chance of showers and a slight
chance of thunderstorms. 
.monday...s wind 15 to 25 kts. waves 4 to 7 ft. a chance of
showers and thunderstorms. 
.monday night...s wind 15 to 25 kts. waves 5 to 8 ft. a chance of
showers in the evening. a chance of thunderstorms. rain showers
after midnight.  

$$

fzus53 kgrr 170904
nshgrr
expires:202605172000;;702743

nearshore marine forecast
national weather service grand rapids mi
504 am edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz846-172000-
holland to grand haven mi-
504 am edt sun may 17 2026

...small craft advisory in effect from this evening through monday
evening...

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

$$

fzus53 kgrr 170904
nshgrr
expires:202605172000;;702745

nearshore marine forecast
national weather service grand rapids mi
504 am edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz844-172000-
st joseph to south haven mi-
504 am edt sun may 17 2026

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

$$

fzus53 kgrr 170904
nshgrr
expires:202605172000;;702744

nearshore marine forecast
national weather service grand rapids mi
504 am edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz845-172000-
south haven to holland mi-
504 am edt sun may 17 2026

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

$$

fzus53 kgrr 170904
nshgrr
expires:202605172000;;702742

nearshore marine forecast
national weather service grand rapids mi
504 am edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz847-172000-
grand haven to whitehall mi-
504 am edt sun may 17 2026

...small craft advisory in effect from this evening through monday
evening...

.today...east winds 5 to 10 knots veering southeast 10 to 15 knots
in the late morning and afternoon. a chance of rain showers and a
slight chance of thunderstorms in the morning, then rain showers
likely and a slight chance of thunderstorms in the afternoon. waves
1 foot or less. 
.tonight...southeast winds 15 to 25 knots veering south to 30 knots
after midnight. partly cloudy with a chance of rain showers and a
slight chance of thunderstorms. waves 1 to 2 feet building to 4 to
6 feet in the late evening and overnight. 
.monday...south winds to 30 knots. partly sunny with rain showers
likely and a chance of thunderstorms. waves 5 to 7 feet. 
.monday night...south winds to 30 knots. rain showers likely and a
chance of thunderstorms. waves 5 to 7 feet. 
.tuesday...south gales to 35 knots veering southwest to 30 knots
early in the afternoon. rain showers likely and a chance of
thunderstorms. waves 6 to 9 feet. 
.wednesday...northwest winds 15 to 25 knots. mostly sunny. waves
3 to 5 feet. 
.thursday...northeast winds 10 to 15 knots backing northwest early
in the afternoon. mostly sunny. waves around 1 foot. 

$$

fzus53 kgrr 170904
nshgrr
expires:202605172000;;702741

nearshore marine forecast
national weather service grand rapids mi
504 am edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz848-172000-
whitehall to pentwater mi-
504 am edt sun may 17 2026

...small craft advisory in effect from this evening through monday
evening...

.today...northeast winds 10 to 15 knots veering east in the late
morning and afternoon. cloudy. a chance of rain showers in the
morning, then a chance of rain showers and a slight chance of
thunderstorms in the afternoon. waves around 1 foot. 
.tonight...southeast winds 15 to 25 knots veering south to 30 knots
in the late evening and overnight. partly cloudy with a chance of
rain showers and a slight chance of thunderstorms. waves 1 to 3 feet
building to 4 to 6 feet in the late evening and overnight. 
.monday...south winds to 30 knots. partly sunny with a chance of
showers and 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. rain showers and a chance of
thunderstorms. waves 6 to 9 feet. 
.wednesday...north winds around 20 knots. mostly sunny. waves 2 to
4 feet. 
.thursday...northeast winds 5 to 15 knots backing north 15 to
20 knots early in the afternoon. sunny. waves around 1 foot. 

$$

fzus53 kgrr 170904
nshgrr
expires:202605172000;;702740

nearshore marine forecast
national weather service grand rapids mi
504 am edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz849-172000-
pentwater to manistee mi-
504 am edt sun may 17 2026

...small craft advisory in effect from this evening through monday
evening...

.today...northeast winds 10 to 15 knots. a slight chance of rain
showers in the morning, then rain showers likely and a slight chance
of thunderstorms in the afternoon. waves 1 to 2 feet. 
.tonight...east winds 10 to 20 knots becoming south to 30 knots in
the late evening and overnight. partly cloudy with a chance of rain
showers and a slight chance of thunderstorms. waves 1 to 2 feet
building to 4 to 6 feet in the late evening and overnight. 
.monday...south winds to 30 knots. rain showers likely and a slight
chance of thunderstorms. waves 5 to 7 feet. 
.monday night...south winds to 30 knots. rain showers likely and a
chance of thunderstorms. waves 5 to 7 feet. 
.tuesday...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. waves 6 to 9 feet. 
.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
20 knots in the late morning and afternoon. sunny. waves around
1 foot. 

$$

fzus53 kiwx 170746
nshiwx
expires:202605171430;;699594

nearshore marine forecast
national weather service northern indiana
346 am edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz046-171430-
michigan city in to new buffalo mi-
346 am edt sun may 17 2026

.today...south winds 10 to 15 knots increasing to 15 knots. 
partly sunny. waves 2 feet or less. 
.tonight...south winds 10 to 15 knots. partly cloudy. waves 1 to
2 feet. 
.monday...south winds 10 to 15 knots increasing to 15 to
20 knots. gusts up to 25 knots. showers likely with a chance of
thunderstorms in the afternoon. waves 1 to 3 feet. 
.monday night...south winds 15 to 20 knots. gusts up to 25 knots.
showers likely with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 1 to 3 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 170746
nshiwx
expires:202605171430;;699595

nearshore marine forecast
national weather service northern indiana
346 am edt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz043-171430-
new buffalo mi to st joseph mi-
346 am edt sun may 17 2026

.today...south winds 10 to 15 knots increasing to 15 knots. 
mostly cloudy. waves 1 foot or less. 
.tonight...south winds 10 to 15 knots. partly cloudy. waves 1 to
3 feet. 
.monday...south winds 15 to 20 knots. gusts up to 25 knots.
showers likely with a chance of thunderstorms in the afternoon.
waves 1 to 3 feet. 
.monday night...south winds 15 to 20 knots. gusts up to 25 knots.
showers likely with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 1 to 3 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 170907
nshlot
expires:202605171530;;702812

nearshore marine forecast
national weather service chicago/romeoville il
407 am 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.


lmz740-171530-
winthrop harbor to wilmette harbor il-
407 am cdt sun may 17 2026

.today...southwest winds 5 to 10 kt becoming northeast 10 to 20 
kt by daybreak. then, becoming southeast 15 to 25 kt this
afternoon. chance of showers and slight chance of thunderstorms 
in the morning. waves 1 to 2 ft building to 2 to 4 ft. 
.tonight...south winds 15 to 25 kt diminishing to 15 to 20 kt. 
partly cloudy. waves 2 to 4 ft. 
.monday...southwest winds 20 to 25 kt. showers likely and a 
chance of thunderstorms. waves 2 to 4 ft. a small craft advisory
may be needed. 
.monday night...south winds 15 to 25 kt. chance of showers and 
slight chance of thunderstorms. waves 2 to 4 ft. 

$$

fzus53 klot 170907
nshlot
expires:202605171530;;702813

nearshore marine forecast
national weather service chicago/romeoville il
407 am 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.


lmz741-742-171530-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
407 am cdt sun may 17 2026

...small craft advisory in effect from 1 pm cdt this afternoon
through this evening...

.today...southwest winds 10 to 20 kt becoming northeast early this
morning. then, becoming south 20 to 25 kt this afternoon. slight 
chance of showers in the morning. waves 1 to 2 ft building to 2 to
4 ft.
.tonight...south winds 20 to 25 kt diminishing to 15 to 20 kt. 
partly cloudy. waves 2 to 4 ft. 
.monday...south winds 20 to 25 kt. showers likely and a chance of
thunderstorms. waves 2 to 4 ft. 
.monday night...south winds 15 to 25 kt. slight chance of showers
in the evening, then chance of showers and slight chance of 
thunderstorms overnight. waves 2 to 4 ft. 

$$

fzus53 klot 170907
nshlot
expires:202605171530;;702814

nearshore marine forecast
national weather service chicago/romeoville il
407 am 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>745-171530-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
407 am cdt sun may 17 2026

...small craft advisory in effect from 1 pm cdt this afternoon
through this evening...

.today...south winds 5 to 10 kt becoming north 10 to 20 kt early
this morning. then, becoming south 20 to 25 kt this afternoon. 
mostly cloudy. waves 1 to 3 ft.
.tonight...south winds 20 to 25 kt diminishing to 15 to 20 kt. 
partly cloudy in the evening then clearing. waves 2 to 4 ft. 
.monday...south winds 20 to 25 kt. showers likely and a chance of
thunderstorms. waves 2 to 4 ft. 
.monday night...south winds 20 to 25 kt. chance of showers and
slight chance of thunderstorms. waves 2 to 4 ft.  

$$

fzus53 kmkx 171210
nshmkx
expires:202605171600;;709669

nearshore marine forecast
national weather service milwaukee/sullivan wi
710 am cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz643-171600-
sheboygan to port washington wi-
710 am cdt sun may 17 2026

.today...north wind 15 to 20 knots veering northeast late in the
morning, then easing to 10 to 15 knots early in the afternoon
becoming northeast 10 to 15 knots late 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. patchy fog in the afternoon. waves 2 to 4 feet. 
.tonight...northeast wind 10 to 15 knots becoming southeast 5 to
10 knots late in the evening, then becoming south 10 to 20 knots
after midnight becoming 15 to 20 knots early in the morning.
patchy fog through the night. slight chance of showers and
thunderstorms after midnight. waves 3 to 4 feet building to 4 to
6 feet early in the morning. 
.monday...south wind 15 to 20 knots becoming 15 to 25 knots early
in the afternoon, then becoming 15 to 20 knots late in the
afternoon. slight chance of thunderstorms in the morning. rain
showers likely through the day. chance of thunderstorms in the
afternoon. waves 4 to 6 feet building to 5 to 7 feet in the late
morning and 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. rain showers likely and a chance of
thunderstorms. waves 4 to 6 feet. 

$$

fzus53 kmkx 171210
nshmkx
expires:202605171600;;709670

nearshore marine forecast
national weather service milwaukee/sullivan wi
710 am cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz644-171600-
port washington to north point light wi-
710 am cdt sun may 17 2026

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

$$

fzus53 kmkx 171210
nshmkx
expires:202605171600;;709672

nearshore marine forecast
national weather service milwaukee/sullivan wi
710 am cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz646-171600-
wind point wi to winthrop harbor il-
710 am cdt sun may 17 2026

.today...northeast wind 5 to 15 knots becoming 5 to 10 knots late
in the morning, then becoming east 10 to 15 knots early in the
afternoon veering southeast with gusts to around 20 knots 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 1 to 2 feet. 
.tonight...southeast wind 10 to 15 knots veering south with gusts
to around 20 knots late in the evening, then rising to 15 to
20 knots after midnight. mostly cloudy through around midnight
then becoming partly cloudy. waves 2 to 4 feet. 
.monday...south wind 15 to 20 knots. gusts up to 25 knots. rain
showers likely and a chance of thunderstorms through the day.
waves 3 to 4 feet. 
.monday night...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. showers likely through around midnight.
chance of thunderstorms through the night. chance of showers
after midnight. waves 3 to 4 feet. a small craft advisory may be
needed. 

$$

fzus53 kmkx 171210
nshmkx
expires:202605171600;;709671

nearshore marine forecast
national weather service milwaukee/sullivan wi
710 am cdt sun may 17 2026

for waters within five nautical miles of shore on lake michigan


lmz645-171600-
north point light to wind point wi-
710 am cdt sun may 17 2026

.today...north wind 5 to 15 knots veering northeast 10 to
15 knots in the late morning and early afternoon, then veering
east 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 1 to 2 feet building to 2 to
4 feet early in the afternoon, then subsiding to 1 to 3 feet late
in the afternoon. 
.tonight...southeast wind 10 to 15 knots veering south with gusts
to around 20 knots late in the evening, then rising to 15 to
20 knots after midnight becoming south 15 to 20 knots early in
the morning. mostly cloudy through around midnight then becoming
partly cloudy. waves 2 to 4 feet. 
.monday...south wind 15 to 20 knots. gusts up to 25 knots. rain
showers likely and a chance of thunderstorms. waves 3 to 4 feet. 
.monday night...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. showers likely through around midnight.
chance of thunderstorms through the night. chance of showers
after midnight. waves 3 to 4 feet. a small craft advisory may be
needed. 

$$