fzus53 kapx 170645
nshapx
expires:202608171445;;333799

nearshore marine forecast
national weather service gaylord mi
245 am edt mon aug 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.


lmz346-171445-
manistee to point betsie mi-
245 am edt mon aug 17 2026

.today...northwest wind 5 to 10 knots becoming southwest early in
the evening. mostly clear. waves 2 feet or less. 
.tonight...southwest wind 5 to 10 knots. partly cloudy. waves
2 feet or less. 
.tuesday...southwest wind 10 to 15 knots. chance of showers.
waves 2 feet or less. 
.tuesday night...north wind 5 to 10 knots. chance of showers.
waves 2 feet or less. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 170816
nshgrb
expires:202608171600;;337614

nearshore marine forecast
national weather service green bay wi
316 am cdt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz541>543-171600-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
316 am cdt mon aug 17 2026

.early this morning...nw wind 5 to 10 kts. waves 2 ft or less.
mostly clear. 
.today...nw wind 5 to 10 kts backing s early in the afternoon.
waves 2 ft or less. mostly sunny. 
.tonight...sw wind 10 to 15 kts veering w after midnight. waves
2 ft or less. partly cloudy in the evening then becoming mostly
cloudy. 
.tuesday...w wind 10 to 15 kts. waves 2 ft or less. a chance of
showers. a chance of thunderstorms in the afternoon. 
.tuesday night...n wind 5 to 10 kts. waves 2 ft or less. mostly
cloudy in the evening then clearing.  

$$

fzus53 kgrr 170741
nshgrr
expires:202608170845;;335922

nearshore marine forecast
national weather service grand rapids mi
341 am edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz848-170845-
whitehall to pentwater mi-
341 am edt mon aug 17 2026

.rest of tonight...north winds 10 to 15 knots. partly cloudy. waves
around 1 foot. 
.monday...north winds 5 to 15 knots backing northwest early in the
afternoon. sunny. waves around 1 foot. 
.monday night...southwest winds 5 to 15 knots. mostly clear. waves
1 to 3 feet. 
.tuesday...southwest winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet. 
.tuesday night...southwest winds 15 to 20 knots veering north 10 to
15 knots after midnight. partly cloudy with a chance of showers and
thunderstorms. waves 2 to 4 feet subsiding to 1 to 3 feet after
midnight. 
.wednesday...north winds 10 to 15 knots backing northwest early in
the afternoon. mostly sunny. waves 1 to 2 feet. 
.thursday...east winds around 10 knots backing northwest early in
the afternoon. sunny. waves 1 foot or less. 
.friday...south winds 10 to 20 knots. mostly sunny. waves 1 to
3 feet. 

$$

fzus53 kgrr 170741
nshgrr
expires:202608170845;;335921

nearshore marine forecast
national weather service grand rapids mi
341 am edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz849-170845-
pentwater to manistee mi-
341 am edt mon aug 17 2026

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

$$

fzus53 kgrr 170741
nshgrr
expires:202608170845;;335926

nearshore marine forecast
national weather service grand rapids mi
341 am edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz844-170845-
st joseph to south haven mi-
341 am edt mon aug 17 2026

.rest of tonight...northeast winds 10 to 15 knots. partly cloudy.
waves 1 to 3 feet. 
.monday...north winds 10 to 15 knots becoming around 15 knots early
in the afternoon. mostly sunny. waves 1 to 3 feet. 
.monday night...north winds 5 to 15 knots backing southwest after
midnight. mostly clear. waves around 1 foot. 
.tuesday...southwest winds 10 to 15 knots. mostly sunny. waves 1 to
2 feet. 
.tuesday night...southwest winds around 15 knots veering west after
midnight. mostly cloudy with a chance of showers and thunderstorms.
waves 1 to 3 feet. 
.wednesday...north winds 10 to 15 knots. mostly sunny. waves 1 to
3 feet. 
.thursday...northeast winds 5 to 10 knots backing north early in the
afternoon. sunny. waves 1 foot or less. 
.friday...south winds 5 to 10 knots veering west early in the
afternoon. mostly sunny. waves less than 1 foot. 

$$

fzus53 kgrr 170741
nshgrr
expires:202608170845;;335925

nearshore marine forecast
national weather service grand rapids mi
341 am edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz845-170845-
south haven to holland mi-
341 am edt mon aug 17 2026

.rest of tonight...northeast winds 10 to 15 knots. partly cloudy.
waves 1 to 2 feet. 
.monday...north winds 10 to 15 knots backing northwest early in the
afternoon. mostly sunny. waves 1 to 2 feet. 
.monday night...northwest winds 10 to 15 knots backing southwest
after midnight. mostly clear. waves 1 to 2 feet. 
.tuesday...southwest winds around 15 knots. mostly sunny. waves 1 to
3 feet. 
.tuesday night...west winds around 15 knots veering northwest after
midnight. mostly cloudy with a chance of showers and thunderstorms.
waves 1 to 3 feet. 
.wednesday...north winds 10 to 15 knots. mostly sunny. waves 1 to
3 feet. 
.thursday...northeast winds 5 to 10 knots backing northwest early in
the afternoon. sunny. waves 1 foot or less. 
.friday...southeast winds 5 to 10 knots veering southwest in the
late morning and afternoon. mostly sunny. waves less than 1 foot. 

$$

fzus53 kgrr 170741
nshgrr
expires:202608170845;;335924

nearshore marine forecast
national weather service grand rapids mi
341 am edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz846-170845-
holland to grand haven mi-
341 am edt mon aug 17 2026

.rest of tonight...northeast winds 10 to 15 knots. mostly clear.
waves around 1 foot. 
.monday...north winds 10 to 15 knots backing northwest 15 to
20 knots early in the afternoon. mostly sunny. waves 1 to 2 feet. 
.monday night...northwest winds 10 to 15 knots backing southwest
after midnight. mostly clear. waves 1 to 2 feet. 
.tuesday...southwest winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet. 
.tuesday night...west winds 15 to 20 knots veering northwest 10 to
15 knots after midnight. partly cloudy with a chance of showers and
thunderstorms. waves 2 to 4 feet. 
.wednesday...north winds 10 to 20 knots backing northwest early in
the afternoon. mostly sunny. waves 1 to 3 feet. 
.thursday...northeast winds 5 to 10 knots backing northwest 10 to
15 knots early in the afternoon. sunny. waves less than 1 foot. 
.friday...southeast winds around 10 knots veering southwest in the
late morning and afternoon. mostly sunny. waves 1 foot or less. 

$$

fzus53 kgrr 170741
nshgrr
expires:202608170845;;335923

nearshore marine forecast
national weather service grand rapids mi
341 am edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz847-170845-
grand haven to whitehall mi-
341 am edt mon aug 17 2026

.rest of tonight...north winds 10 to 15 knots. partly cloudy. waves
around 1 foot. 
.monday...north winds 10 to 20 knots backing northwest early in the
afternoon. sunny. waves 1 to 2 feet. 
.monday night...west winds 10 to 15 knots backing southwest after
midnight. mostly clear. waves 1 to 3 feet. 
.tuesday...southwest winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet. 
.tuesday night...southwest winds around 20 knots veering west in the
late evening and early morning, then veering north 10 to 15 knots
after midnight. rain showers likely and a chance of thunderstorms.
waves 2 to 4 feet. 
.wednesday...north winds 10 to 20 knots backing northwest early in
the afternoon. mostly sunny. waves 1 to 3 feet. 
.thursday...east winds around 10 knots backing northwest early in
the afternoon. sunny. waves 1 foot or less. 
.friday...south winds 10 to 15 knots veering southwest in the late
morning and afternoon. mostly sunny. waves 1 to 2 feet. 

$$

fzus53 kiwx 170743
nshiwx
expires:202608171415;;335996

nearshore marine forecast
national weather service northern indiana
343 am edt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz043-046-171415-
new buffalo mi to st joseph mi-michigan city in to new buffalo mi-
343 am edt mon aug 17 2026

.today...northeast winds 5 to 10 knots becoming north. mostly
sunny. waves 1 to 3 feet. 
.tonight...north winds 5 to 10 knots becoming southwest. mostly
clear. waves 1 to 2 feet. 
.tuesday...southwest winds 5 to 10 knots. mostly sunny. waves
1 foot or less. 
.tuesday night...southwest winds 5 to 10 knots becoming west.
showers with a chance of thunderstorms. waves 1 to 2 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at michigan city is 62 degrees.

$$

fzus53 klot 170235
nshlot
expires:202608170915;;322909

nearshore marine forecast
national weather service chicago/romeoville il
935 pm cdt sun aug 16 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>742-170915-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
935 pm cdt sun aug 16 2026

.rest of tonight...northwest winds 10 to 15 kt becoming north
overnight. partly cloudy. waves 1 to 3 ft building to 2 to 4 ft. 
.monday...north winds 10 to 15 kt becoming northeast. mostly
cloudy in the morning, then becoming partly cloudy. waves 2 to
4 ft subsiding to 1 to 3 ft. 
.monday night...south winds around 10 kt becoming southwest
overnight. mostly clear. waves 1 to 2 ft. 
.tuesday...southwest winds 10 to 15 kt. chance of showers and
slight chance of thunderstorms in the afternoon. waves 1 to 2 ft.
 

$$

fzus53 klot 170235
nshlot
expires:202608170915;;322910

nearshore marine forecast
national weather service chicago/romeoville il
935 pm cdt sun aug 16 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>745-170915-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
935 pm cdt sun aug 16 2026

.rest of tonight...northwest winds 10 to 15 kt becoming north
overnight. chance of showers and thunderstorms through midnight. 
waves 1 to 2 ft building to 2 to 4 ft. 
.monday...northeast winds 10 to 15 kt becoming north. mostly
cloudy in the morning, then becoming partly cloudy. waves 2 to
4 ft subsiding to 1 to 3 ft. 
.monday night...southwest winds around 10 kt. mostly clear. waves
1 to 2 ft. 
.tuesday...southwest winds 10 to 15 kt. mostly sunny in the
morning, then becoming partly cloudy. waves 1 to 2 ft.  

$$

fzus53 kmkx 170810
nshmkx
expires:202608172100;;337475

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 am cdt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz643-172100-
sheboygan to port washington wi-
310 am cdt mon aug 17 2026

.early this morning...north wind 5 to 10 knots. partly cloudy.
waves around 1 foot. 
.today...northwest wind 5 to 10 knots veering southeast early in
the afternoon, then veering south late in the afternoon. mostly
sunny. waves around 1 foot. 
.tonight...south wind 10 to 15 knots becoming southwest 5 to
10 knots late in the evening, then rising to 10 to 15 knots after
midnight veering west early in the morning. partly cloudy. waves
around 1 foot. 
.tuesday...west wind 10 to 15 knots backing southwest with gusts
to around 20 knots in the late morning and early afternoon, then
veering west with gusts to around 20 knots late in the afternoon.
chance of showers and thunderstorms in the afternoon. waves
around 1 foot. 
.tuesday night...west wind 10 to 15 knots veering north early in
the morning. chance of thunderstorms through around midnight.
chance of showers through the night. waves around 1 foot. 

$$

fzus53 kmkx 170810
nshmkx
expires:202608172100;;337476

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 am cdt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz644-172100-
port washington to north point light wi-
310 am cdt mon aug 17 2026

.early this morning...north wind 10 to 15 knots becoming 5 to
15 knots early in the morning. partly cloudy. waves 1 to 2 feet. 
.today...north wind 5 to 10 knots veering east early in the
afternoon, then veering south late in the afternoon. mostly
sunny. waves 1 to 2 feet. 
.tonight...south wind 5 to 10 knots veering southwest late in the
evening, then becoming southwest 5 to 10 knots after midnight
becoming west 10 to 15 knots early in the morning. partly cloudy.
waves around 1 foot. 
.tuesday...west wind 10 to 15 knots backing southwest with gusts
to around 20 knots early in the afternoon, then veering west with
gusts to around 20 knots late in the afternoon. chance of showers
and thunderstorms in the afternoon. waves around 1 foot. 
.tuesday night...west wind 10 to 15 knots becoming northwest 5 to
10 knots after midnight, then becoming north 10 to 15 knots early
in the morning. chance of thunderstorms through around midnight.
chance of showers through the night. waves around 1 foot. 

$$

fzus53 kmkx 170810
nshmkx
expires:202608172100;;337477

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 am cdt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz645-172100-
north point light to wind point wi-
310 am cdt mon aug 17 2026

.early this morning...north wind 10 to 15 knots. mostly cloudy.
waves 1 to 2 feet. 
.today...north wind 5 to 10 knots veering northeast early in the
afternoon, then veering southeast late in the afternoon. mostly
sunny. waves 1 to 2 feet. 
.tonight...south wind 5 to 10 knots veering southwest late in the
evening, then rising to 10 to 15 knots after midnight veering
west early in the morning. partly cloudy. waves around 1 foot. 
.tuesday...west wind 10 to 15 knots backing southwest with gusts
to around 20 knots in the late morning and early afternoon, then
veering west late in the afternoon. chance of showers and
thunderstorms in the afternoon. waves around 1 foot. 
.tuesday night...west wind 10 to 15 knots veering north early in
the morning. chance of thunderstorms through around midnight.
chance of showers through the night. waves around 1 foot. 

$$

fzus53 kmkx 170810
nshmkx
expires:202608172100;;337478

nearshore marine forecast
national weather service milwaukee/sullivan wi
310 am cdt mon aug 17 2026

for waters within five nautical miles of shore on lake michigan


lmz646-172100-
wind point wi to winthrop harbor il-
310 am cdt mon aug 17 2026

.early this morning...north wind 10 to 15 knots. partly cloudy.
waves 1 to 2 feet. 
.today...north wind 5 to 10 knots veering northeast early in the
afternoon, then veering east late in the afternoon. mostly sunny.
waves 1 to 2 feet. 
.tonight...south wind 5 to 10 knots veering southwest late in the
evening, then becoming southwest 5 to 10 knots after midnight
becoming west 10 to 15 knots early in the morning. partly cloudy.
waves around 1 foot. 
.tuesday...west wind 10 to 15 knots backing southwest in the late
morning and early afternoon, then veering west late in the
afternoon. chance of showers and thunderstorms in the afternoon.
waves around 1 foot. 
.tuesday night...west wind 10 to 15 knots veering northwest after
midnight, then easing to 5 to 10 knots early in the morning.
showers likely and a chance of thunderstorms through the night.
waves around 1 foot. 

$$