fzus53 kapx 171756
nshapx
expires:202604180200;;532375

nearshore marine forecast
national weather service gaylord mi
156 pm edt fri apr 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.


lmz346-180200-
manistee to point betsie mi-
156 pm edt fri apr 17 2026

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

.tonight...south wind 10 to 20 knots becoming west early in the
morning. rain and a chance of thunderstorms early in the evening,
then rain likely and slight chance of thunderstorms after
midnight. waves 3 to 5 feet. 
.saturday...west wind 10 to 20 knots. slight chance of rain and
snow showers. waves 3 to 5 feet. 
.saturday night...west wind 10 to 20 knots. partly cloudy. waves
3 to 5 feet. 
.sunday...northwest wind 10 to 15 knots. mostly sunny. waves 2 to
4 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 172345
nshgrb
expires:202604180400;;549645

nearshore marine forecast
national weather service green bay wi
645 pm cdt fri apr 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-
645 pm cdt fri apr 17 2026

...dense fog advisory in effect until 4 am cdt saturday...
...small craft advisory in effect through saturday morning...

.tonight...s wind 15 to 25 kts veering w after midnight. gusts to
35 kts. waves 5 to 8 ft subsiding to 4 to 7 ft after midnight.
patchy dense fog. a chance of thunderstorms in the evening. rain
showers. 
.saturday...w wind 15 to 25 kts. waves 3 to 5 ft subsiding to
1 to 3 ft in the afternoon. partly cloudy in the morning then
clearing. 
.saturday night...w wind 15 to 25 kts decreasing to 10 to 15 kts
in the late evening and overnight. waves 1 to 3 ft. mostly clear.
a small craft advisory may be needed. 
.sunday...nw wind 10 to 15 kts veering n early in the afternoon.
waves 2 ft or less. partly cloudy.  

$$

fzus53 kgrr 172303
nshgrr
expires:202604180800;;547758

nearshore marine forecast
national weather service grand rapids mi
703 pm edt fri apr 17 2026

for waters within five nautical miles of shore on lake michigan


lmz844-180800-
st joseph to south haven mi-
703 pm edt fri apr 17 2026

...small craft advisory in effect through sunday morning...

.through early evening...south winds around 15 knots. mostly sunny.
waves 1 to 2 feet. 
.tonight...south winds 15 to 25 knots veering southwest after
midnight. a chance of showers and thunderstorms in the evening, then
rain showers and a chance of thunderstorms after midnight. waves
2 to 4 feet.
.saturday...west winds 20 to 25 knots. partly sunny with a chance of
rain showers. waves 4 to 6 feet. 
.saturday night...northwest winds 20 to 25 knots. partly cloudy.
waves 3 to 5 feet. 
.sunday...west winds 15 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.sunday night...north winds 10 to 15 knots veering northeast after
midnight. mostly clear. waves 1 to 3 feet. 
.monday...northeast winds 5 to 10 knots backing west early in the
afternoon. sunny. waves 1 to 2 feet. 
.tuesday...south winds 20 to 25 knots veering southwest 15 to
20 knots early in the afternoon. mostly sunny. waves 2 to 4 feet. 
.wednesday...east winds 10 to 15 knots backing north early in the
afternoon. sunny. waves 1 to 2 feet. 

$$

fzus53 kgrr 172303
nshgrr
expires:202604180800;;547753

nearshore marine forecast
national weather service grand rapids mi
703 pm edt fri apr 17 2026

for waters within five nautical miles of shore on lake michigan


lmz849-180800-
pentwater to manistee mi-
703 pm edt fri apr 17 2026

...small craft advisory in effect through sunday morning...

.through early evening...south winds 15 to 25 knots. partly sunny.
waves 2 to 3 feet. 
.tonight...south winds 15 to 25 knots. rain showers and a chance of
thunderstorms. waves 3 to 5 feet. 
.saturday...west winds 15 to 25 knots. partly sunny with a chance of
rain showers. waves 4 to 6 feet. 
.saturday night...west winds to 30 knots. partly cloudy. waves 4 to
6 feet. 
.sunday...west winds 15 to 25 knots veering northwest early in the
afternoon. mostly sunny. waves 3 to 5 feet. 
.sunday night...north winds 10 to 15 knots veering northeast after
midnight. mostly clear. waves 2 to 3 feet. 
.monday...south winds around 10 knots veering southwest in the late
morning and afternoon. sunny. waves 1 to 2 feet. 
.tuesday...south winds to 30 knots. mostly sunny. waves 5 to 7 feet.
.wednesday...northeast winds 10 to 15 knots backing northwest early
in the afternoon. sunny. waves 1 to 2 feet. 

$$

fzus53 kgrr 172303
nshgrr
expires:202604180800;;547754

nearshore marine forecast
national weather service grand rapids mi
703 pm edt fri apr 17 2026

for waters within five nautical miles of shore on lake michigan


lmz848-180800-
whitehall to pentwater mi-
703 pm edt fri apr 17 2026

...small craft advisory in effect through sunday morning...

.through early evening...south winds 15 to 25 knots. mostly sunny.
waves 2 to 3 feet. 
.tonight...south winds 20 to 25 knots. rain showers and a chance of
thunderstorms. waves 4 to 6 feet. 
.saturday...west winds 20 to 25 knots. partly sunny with a chance of
rain showers. waves 4 to 6 feet. 
.saturday night...west winds to 30 knots. partly cloudy. waves 4 to
6 feet. 
.sunday...northwest winds 15 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.sunday night...north winds 10 to 20 knots veering northeast after
midnight. mostly clear. waves 2 to 3 feet. 
.monday...east winds around 10 knots veering southwest in the late
morning and afternoon. sunny. waves around 1 foot. 
.tuesday...south winds to 30 knots. mostly sunny. waves 6 to 8 feet.
.wednesday...northeast winds 10 to 15 knots backing northwest early
in the afternoon. sunny. waves around 1 foot. 

$$

fzus53 kgrr 172303
nshgrr
expires:202604180800;;547755

nearshore marine forecast
national weather service grand rapids mi
703 pm edt fri apr 17 2026

for waters within five nautical miles of shore on lake michigan


lmz847-180800-
grand haven to whitehall mi-
703 pm edt fri apr 17 2026

...small craft advisory in effect through sunday morning...

.through early evening...southeast winds 15 to 20 knots. mostly
sunny. waves 1 to 3 feet. 
.tonight...south winds 15 to 25 knots. rain showers and a chance of
thunderstorms. waves 3 to 5 feet. 
.saturday...west winds 20 to 25 knots. partly sunny with a chance of
rain showers. waves 5 to 7 feet. 
.saturday night...west winds 20 to 25 knots. partly cloudy. waves
4 to 6 feet. 
.sunday...west winds 15 to 25 knots. mostly sunny. waves 4 to
6 feet. 
.sunday night...north winds 10 to 20 knots veering northeast around
10 knots after midnight. mostly clear. waves 1 to 3 feet.
.monday...east winds around 10 knots veering south in the late
morning and early afternoon, then veering southwest early in the
afternoon. sunny. waves around 1 foot. 
.tuesday...south winds to 30 knots veering southwest 20 to 25 knots
early in the afternoon. mostly sunny. waves 5 to 7 feet. 
.wednesday...east winds 10 to 15 knots veering southeast in the late
morning and early afternoon, then veering southwest early in the
afternoon. sunny. waves around 1 foot. 

$$

fzus53 kgrr 172303
nshgrr
expires:202604180800;;547756

nearshore marine forecast
national weather service grand rapids mi
703 pm edt fri apr 17 2026

for waters within five nautical miles of shore on lake michigan


lmz846-180800-
holland to grand haven mi-
703 pm edt fri apr 17 2026

...small craft advisory in effect through sunday morning...

.through early evening...south winds 15 to 20 knots. mostly sunny.
waves 1 to 2 feet. 
.tonight...south winds 15 to 25 knots becoming after midnight. rain
showers and a chance of thunderstorms. waves 3 to 5 feet. 
.saturday...west winds 20 to 25 knots. partly sunny with a chance of
rain showers. waves 5 to 7 feet. 
.saturday night...west winds to 30 knots. partly cloudy. waves 4 to
6 feet. 
.sunday...west winds 20 to 25 knots. mostly sunny. waves 4 to
6 feet. 
.sunday night...northwest winds 10 to 20 knots veering northeast
around 10 knots after midnight. mostly clear. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.monday...east winds around 10 knots veering southeast in the late
morning and early afternoon, then veering southwest early in the
afternoon. sunny. waves around 1 foot. 
.tuesday...south winds to 30 knots veering southwest 20 to 25 knots
early in the afternoon. mostly sunny. waves 5 to 7 feet. 
.wednesday...east winds 10 to 15 knots veering southwest early in
the afternoon. sunny. waves 1 to 2 feet. 

$$

fzus53 kgrr 172303
nshgrr
expires:202604180800;;547757

nearshore marine forecast
national weather service grand rapids mi
703 pm edt fri apr 17 2026

for waters within five nautical miles of shore on lake michigan


lmz845-180800-
south haven to holland mi-
703 pm edt fri apr 17 2026

...small craft advisory in effect through sunday morning...

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

$$

fzus53 kiwx 171851
nshiwx
expires:202604180215;;537231

nearshore marine forecast
national weather service northern indiana
251 pm edt fri apr 17 2026

for waters within five nautical miles of shore on lake michigan


lmz043-180215-
new buffalo mi to st joseph mi-
251 pm edt fri apr 17 2026

...small craft advisory in effect from 8 pm edt this evening
through late saturday night...

.tonight...south winds 10 to 15 knots becoming southwest 15 to
20 knots. gusts up to 25 knots. a slight chance of showers and
thunderstorms early, then showers with a chance of thunderstorms
from late evening on. waves 1 to 3 feet. 
.saturday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. gusts up to 25 knots. a chance of showers and
thunderstorms in the morning, then a slight chance of showers and
thunderstorms in the afternoon. waves 2 to 4 feet building to
3 to 5 feet. 
.saturday night...northwest winds 10 to 15 knots. partly cloudy.
waves 2 to 4 feet. 
.sunday...west winds 10 to 15 knots becoming northwest. mostly
sunny. waves 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 49 degrees and at michigan
city is 48 degrees.

$$

fzus53 kiwx 171851
nshiwx
expires:202604180215;;537230

nearshore marine forecast
national weather service northern indiana
251 pm edt fri apr 17 2026

for waters within five nautical miles of shore on lake michigan


lmz046-180215-
michigan city in to new buffalo mi-
251 pm edt fri apr 17 2026

...small craft advisory in effect from 8 pm edt this evening
through late saturday night...

.tonight...south winds 10 to 15 knots becoming southwest 15 to
20 knots. gusts up to 25 knots. a slight chance of showers and
thunderstorms early, then showers with a chance of thunderstorms
from late evening on. waves 1 to 3 feet. 
.saturday...west winds 15 to 20 knots becoming northwest 10 to
15 knots. gusts up to 25 knots. a chance of showers and
thunderstorms in the morning, then a slight chance of showers and
thunderstorms in the afternoon. waves 2 to 4 feet. 
.saturday night...northwest winds 10 to 15 knots becoming west.
partly cloudy. waves 2 to 4 feet. 
.sunday...west winds around 10 knots becoming northwest. mostly
sunny. waves 2 to 3 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 49 degrees and at michigan
city is 48 degrees.

$$

fzus53 klot 172037 aaa
nshlot
expires:202604180315;;541912

nearshore marine forecast...updated
national weather service chicago/romeoville il
337 pm cdt fri apr 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>742-180315-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
337 pm cdt fri apr 17 2026

...small craft advisory in effect through saturday evening...
...tornado watch 131 in effect until 11 pm cdt this evening...

.tonight...south winds to 30 kt becoming west 20 to 25 kt late. 
showers and thunderstorms in the evening, then showers and a 
chance of thunderstorms after midnight. some thunderstorms may 
be severe with damaging winds and large hail in the evening. 
waves 3 to 5 ft subsiding to 2 to 4 ft. 
.saturday...northwest winds 20 to 25 kt becoming west. slight 
chance of showers in the morning. waves 2 to 4 ft. 
.saturday night...west winds 15 to 20 kt diminishing to 10 to
15 kt. partly cloudy in the evening, then becoming mostly clear.
waves 1 to 3 ft. 
.sunday...west winds 10 to 15 kt becoming northwest 15 to 20 kt
in the afternoon. slight chance of showers in the afternoon.
waves 1 to 2 ft.  

$$

fzus53 klot 172037 aaa
nshlot
expires:202604180315;;541913

nearshore marine forecast...updated
national weather service chicago/romeoville il
337 pm cdt fri apr 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>745-180315-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
337 pm cdt fri apr 17 2026

...small craft advisory in effect through saturday evening...

.tonight...south winds to 30 kt becoming southwest 20 to 25 kt 
late. showers and thunderstorms in the evening, then showers and 
a chance of thunderstorms after midnight. waves 2 to 4 ft. 
.saturday...northwest winds 20 to 25 kt. chance of showers in the
morning. waves 3 to 5 ft. 
.saturday night...northwest winds 15 to 20 kt becoming west 10 
to 15 kt. partly cloudy in the evening then clearing. waves 2 to 
4 ft. 
.sunday...west winds 10 to 20 kt becoming northwest in the
afternoon. mostly sunny in the morning, then becoming mostly
cloudy. waves 1 to 3 ft.  

$$

fzus53 kmkx 172210
nshmkx
expires:202604180400;;545992

nearshore marine forecast
national weather service milwaukee/sullivan wi
510 pm cdt fri apr 17 2026

for waters within five nautical miles of shore on lake michigan


lmz646-180400-
wind point wi to winthrop harbor il-
510 pm cdt fri apr 17 2026

...dense fog advisory in effect until 4 am cdt saturday...
...small craft advisory in effect through saturday evening...

.tonight...south wind 15 to 20 knots easing to 10 to 15 knots
after midnight, then becoming west 15 to 20 knots early in the
morning. gusts up to 25 knots. patchy fog until early morning.
chance of thunderstorms through around midnight. rain showers
through the night. chance of thunderstorms after midnight. waves
4 to 6 feet subsiding to 3 to 5 feet late in the evening, then
subsiding to 3 to 4 feet after midnight. 
.saturday...northwest wind 15 to 20 knots backing west in the
afternoon. gusts up to 25 knots. mostly cloudy in the morning
then clearing. waves 2 to 4 feet subsiding to 1 to 2 feet in the
afternoon. 
.saturday night...west wind 15 to 20 knots with gusts to around
25 knots easing to 10 to 15 knots after midnight, then becoming
west 10 to 15 knots early in the morning. partly cloudy through
around midnight then becoming clear. waves 1 to 2 feet. 
.sunday...west wind 10 to 15 knots veering northwest late in the
afternoon. slight chance of showers in the afternoon. waves
around 1 foot. 

$$

fzus53 kmkx 172210
nshmkx
expires:202604180400;;545991

nearshore marine forecast
national weather service milwaukee/sullivan wi
510 pm cdt fri apr 17 2026

for waters within five nautical miles of shore on lake michigan


lmz645-180400-
north point light to wind point wi-
510 pm cdt fri apr 17 2026

...dense fog advisory in effect until 4 am cdt saturday...
...small craft advisory in effect through saturday evening...

.tonight...south wind 15 to 20 knots becoming 10 to 20 knots late
in the evening, then veering southwest 10 to 15 knots after
midnight becoming west 15 to 20 knots early in the morning. gusts
up to 25 knots. patchy fog until early morning. chance of
thunderstorms through around midnight. rain showers through the
night. chance of thunderstorms after midnight. waves 3 to 5 feet
subsiding to 3 to 4 feet after midnight. 
.saturday...northwest wind 15 to 25 knots easing to 10 to
20 knots late in the morning, then backing west 15 to 20 knots in
the afternoon. mostly cloudy in the morning then becoming mostly
sunny. waves 2 to 4 feet subsiding to 1 to 3 feet late in the
afternoon. 
.saturday night...west wind 15 to 20 knots easing to 10 to
15 knots after midnight, then becoming west 10 to 15 knots early
in the morning. partly cloudy through around midnight then
clearing. waves 2 to 4 feet subsiding to 1 to 2 feet in the late
evening and overnight. 
.sunday...west wind 10 to 15 knots veering northwest late in the
afternoon. slight chance of showers in the afternoon. waves 1 to
2 feet. 

$$

fzus53 kmkx 172210
nshmkx
expires:202604180400;;545990

nearshore marine forecast
national weather service milwaukee/sullivan wi
510 pm cdt fri apr 17 2026

for waters within five nautical miles of shore on lake michigan


lmz644-180400-
port washington to north point light wi-
510 pm cdt fri apr 17 2026

...dense fog advisory in effect until 4 am cdt saturday...
...small craft advisory in effect through saturday evening...

.tonight...south wind 15 to 20 knots veering west early in the
morning. gusts up to 25 knots. patchy fog until early morning.
showers and a chance of thunderstorms through around midnight.
rain showers likely and a chance of thunderstorms after midnight.
waves 4 to 6 feet subsiding to 3 to 5 feet late in the evening,
then subsiding to 3 to 4 feet after midnight. 
.saturday...northwest wind 15 to 25 knots becoming west 10 to
20 knots in the afternoon. mostly cloudy in the morning then
becoming mostly sunny. waves 2 to 4 feet. 
.saturday night...west wind 15 to 25 knots becoming 15 to
20 knots late in the evening, then becoming west 15 to 20 knots
after midnight easing to 10 to 15 knots early in the morning.
partly cloudy through around midnight then clearing. waves 2 to
4 feet subsiding to 1 to 2 feet in the late evening and
overnight. 
.sunday...west wind 10 to 15 knots veering northwest late in the
afternoon. slight chance of showers in the afternoon. waves 1 to
2 feet. 

$$

fzus53 kmkx 172210
nshmkx
expires:202604180400;;545989

nearshore marine forecast
national weather service milwaukee/sullivan wi
510 pm cdt fri apr 17 2026

for waters within five nautical miles of shore on lake michigan


lmz643-180400-
sheboygan to port washington wi-
510 pm cdt fri apr 17 2026

...dense fog advisory in effect until 4 am cdt saturday...
...small craft advisory in effect through saturday evening...

.tonight...south wind 15 to 25 knots veering southwest 15 to
20 knots after midnight, then veering west early in the morning.
gusts up to 30 knots. patchy fog through the night. showers and a
chance of thunderstorms through around midnight. rain showers
likely and slight chance of thunderstorms after midnight. waves
5 to 7 feet subsiding to 3 to 4 feet. 
.saturday...northwest wind 15 to 25 knots easing to 10 to
20 knots late in the morning, then backing west in the afternoon.
gusts up to 30 knots. mostly cloudy in the morning then becoming
mostly sunny. waves 3 to 4 feet. 
.saturday night...west wind 15 to 25 knots becoming 15 to
20 knots late in the evening, then easing to 10 to 15 knots after
midnight becoming west 10 to 15 knots early in the morning.
partly cloudy. waves 2 to 4 feet subsiding to 1 to 2 feet in the
late evening and overnight. 
.sunday...west wind 10 to 15 knots veering northwest late in the
afternoon. slight chance of showers in the afternoon. waves
around 1 foot. 

$$