fzus53 kapx 181501
nshapx
expires:202604182315;;584875

nearshore marine forecast
national weather service gaylord mi
1101 am edt sat apr 18 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.


lmz346-182315-
manistee to point betsie mi-
1101 am edt sat apr 18 2026

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

.today...west wind 15 to 20 knots. partly sunny. waves 3 to
5 feet. 
.tonight...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. 
.sunday night...north wind 5 to 10 knots. mostly clear. waves
2 feet or less. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 181757
nshgrb
expires:202604182200;;590924

nearshore marine forecast
national weather service green bay wi
1256 pm cdt sat apr 18 2026

for waters within five nautical miles of shore on lake michigan


lmz542-543-182200-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
1256 pm cdt sat apr 18 2026

.this afternoon...w wind 15 to 25 kts. waves 1 to 3 ft. a chance
of sprinkles in the afternoon. 
.tonight...w wind 15 to 25 kts decreasing to 10 to 15 kts in the
late evening and overnight. waves 1 to 3 ft. partly cloudy. a
small craft advisory may be needed. 
.sunday...nw wind 10 to 15 kts. waves 2 ft or less. a chance of
flurries in the morning. a chance of sprinkles. 
.sunday night...n wind 10 to 15 kts. waves 2 ft or less. partly
cloudy in the evening then clearing.  

$$

fzus53 kgrr 181351
nshgrr
expires:202604182100;;582509

nearshore marine forecast
national weather service grand rapids mi
951 am edt sat apr 18 2026

for waters within five nautical miles of shore on lake michigan


lmz844-182100-
st joseph to south haven mi-
951 am edt sat apr 18 2026

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

.rest of today...northwest winds 20 to 25 knots. mostly cloudy late
in the morning then becoming mostly sunny. a slight chance of rain
showers late in the morning. waves 4 to 6 feet. 
.tonight...west winds 20 to 25 knots. partly cloudy. waves 3 to
5 feet. 
.sunday...west winds 15 to 20 knots. mostly sunny. waves 2 to
4 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 5 to 10 knots backing northwest early in
the afternoon. sunny. waves 1 to 2 feet. 
.tuesday...southwest winds 15 to 25 knots. mostly sunny. waves 2 to
4 feet.
.wednesday...northeast winds 10 to 15 knots backing north 5 to
10 knots early in the afternoon. sunny. waves 1 to 2 feet. 

$$

fzus53 kgrr 181351
nshgrr
expires:202604182100;;582508

nearshore marine forecast
national weather service grand rapids mi
951 am edt sat apr 18 2026

for waters within five nautical miles of shore on lake michigan


lmz845-182100-
south haven to holland mi-
951 am edt sat apr 18 2026

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

.rest of today...west winds to 30 knots. mostly cloudy late in the
morning then becoming mostly sunny. a slight chance of rain showers
late in the morning. waves 4 to 6 feet. 
.tonight...west winds 20 to 25 knots. partly cloudy. waves 3 to
5 feet. 
.sunday...west winds 20 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.sunday night...northwest winds 10 to 20 knots veering northeast
after midnight. mostly clear. waves 2 to 4 feet.
.monday...northeast winds 5 to 10 knots backing north in the late
morning and early afternoon, then backing west early in the
afternoon. sunny. waves around 1 foot. 
.tuesday...southwest winds 15 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.wednesday...northeast winds 10 to 15 knots backing north early in
the afternoon. sunny. waves around 1 foot. 

$$

fzus53 kgrr 181351
nshgrr
expires:202604182100;;582507

nearshore marine forecast
national weather service grand rapids mi
951 am edt sat apr 18 2026

for waters within five nautical miles of shore on lake michigan


lmz846-182100-
holland to grand haven mi-
951 am edt sat apr 18 2026

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

.rest of today...west winds to 30 knots. mostly cloudy late in the
morning then becoming mostly sunny. a slight chance of rain showers
late in the morning. waves 4 to 6 feet. 
.tonight...west winds around 25 knots. partly cloudy. waves 4 to
6 feet. 
.sunday...west winds 20 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.sunday night...northwest winds 15 to 20 knots veering north 10 to
15 knots in the late evening and overnight. mostly clear. waves 2 to
4 feet.
.monday...northeast winds around 10 knots backing north in the late
morning and early afternoon, then backing southwest early in the
afternoon. sunny. waves 1 foot or less. 
.tuesday...southwest winds to 30 knots. mostly sunny. waves 4 to
6 feet. 
.wednesday...northeast winds 10 to 15 knots backing north early in
the afternoon. sunny. waves 1 foot or less. 

$$

fzus53 kgrr 181351
nshgrr
expires:202604182100;;582506

nearshore marine forecast
national weather service grand rapids mi
951 am edt sat apr 18 2026

for waters within five nautical miles of shore on lake michigan


lmz847-182100-
grand haven to whitehall mi-
951 am edt sat apr 18 2026

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

.rest of today...west winds to 30 knots. mostly cloudy late in the
morning then becoming mostly sunny. waves 4 to 6 feet. 
.tonight...west winds around 25 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 4 feet subsiding to 1 to 3 feet
in the late evening and overnight. 
.monday...northeast winds around 10 knots backing west in the late
morning and early afternoon, then backing southwest early in the
afternoon. sunny. waves 1 foot or less. 
.tuesday...south winds to 30 knots. mostly sunny. waves 5 to 7 feet.
.wednesday...northeast winds around 10 knots backing northwest early
in the afternoon. sunny. waves 1 foot or less. 

$$

fzus53 kgrr 181351
nshgrr
expires:202604182100;;582505

nearshore marine forecast
national weather service grand rapids mi
951 am edt sat apr 18 2026

for waters within five nautical miles of shore on lake michigan


lmz848-182100-
whitehall to pentwater mi-
951 am edt sat apr 18 2026

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

.rest of today...west winds around 25 knots. partly sunny. waves
4 to 6 feet. 
.tonight...west winds around 25 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 5 to 10 knots veering southwest 10 to 15 knots
in the late morning and afternoon. sunny. waves around 1 foot. 
.tuesday...south winds to 30 knots decreasing to 15 to 20 knots
early in the afternoon. mostly sunny. waves 5 to 7 feet. 
.wednesday...northeast winds 10 to 15 knots backing northwest early
in the afternoon. sunny. waves around 1 foot. 

$$

fzus53 kgrr 181351
nshgrr
expires:202604182100;;582504

nearshore marine forecast
national weather service grand rapids mi
951 am edt sat apr 18 2026

for waters within five nautical miles of shore on lake michigan


lmz849-182100-
pentwater to manistee mi-
951 am edt sat apr 18 2026

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

.rest of today...west winds 15 to 25 knots. partly sunny. waves 3 to
5 feet. 
.tonight...west winds 15 to 25 knots. partly cloudy. waves 4 to
6 feet. 
.sunday...northwest winds 15 to 25 knots veering north early in the
afternoon. mostly sunny. waves 2 to 4 feet. 
.sunday night...north winds 10 to 15 knots. mostly clear. waves 1 to
3 feet. 
.monday...northwest winds around 10 knots backing southwest in the
late morning and afternoon. sunny. waves 1 to 2 feet. 
.tuesday...south winds to 30 knots decreasing to 15 to 20 knots
early in the afternoon. mostly sunny. waves 4 to 6 feet. 
.wednesday...northeast winds 5 to 15 knots backing northwest early
in the afternoon. sunny. waves around 1 foot. 

$$

fzus53 kiwx 181434
nshiwx
expires:202604182015;;584072

nearshore marine forecast
national weather service northern indiana
1034 am edt sat apr 18 2026

for waters within five nautical miles of shore on lake michigan


lmz043-182015-
new buffalo mi to st joseph mi-
1034 am edt sat apr 18 2026

...small craft advisory in effect through late tonight...

.rest of today...northwest winds 10 to 20 knots becoming west. 
gusts up to 25 knots. a slight chance of showers late this 
morning. waves 3 to 5 feet. 
.tonight...west winds 10 to 15 knots. gusts up to 25 knots. a
chance of sprinkles in the evening. waves 2 to 4 feet. 
.sunday...west winds 10 to 15 knots becoming northwest. mostly
sunny. waves 1 to 3 feet. 
.sunday night...northwest winds 10 knots or less becoming
northeast. mostly clear. waves 1 to 2 feet. 

the water temperature at st. joseph is 51 degrees and at michigan
city is 48 degrees.

$$

fzus53 kiwx 181434
nshiwx
expires:202604182015;;584071

nearshore marine forecast
national weather service northern indiana
1034 am edt sat apr 18 2026

for waters within five nautical miles of shore on lake michigan


lmz046-182015-
michigan city in to new buffalo mi-
1034 am edt sat apr 18 2026

...small craft advisory in effect through late tonight...

.rest of today...northwest winds 10 to 20 knots becoming west 10 
to 15 knots. gusts up to 25 knots. a slight chance of showers late
this morning. waves 2 to 4 feet. 
.tonight...west winds 10 to 15 knots. a chance of sprinkles in
the evening. waves 2 to 4 feet. 
.sunday...west winds around 10 knots becoming northwest. sunny in
the morning, then becoming partly sunny. waves 1 to 2 feet. 
.sunday night...north winds 5 to 10 knots. mostly clear. waves
1 to 2 feet. 

the water temperature at st. joseph is 51 degrees and at michigan
city is 48 degrees.

$$

fzus53 klot 181416
nshlot
expires:202604182200;;583729

nearshore marine forecast
national weather service chicago/romeoville il
916 am cdt sat apr 18 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>742-182200-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
916 am cdt sat apr 18 2026

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

.rest of today...northwest winds 20 to 25 kt. mostly cloudy
throughearly afternoon, then partly cloudy. waves 2 to 4 ft. 
.tonight...west winds 20 to 25 kt becoming southwest and
diminishing to 10 to 15 kt in the evening. mostly clear. waves 2 
to 4 ft subsiding to 1 to 2 ft. 
.sunday...west winds 10 to 20 kt becoming northwest and increasing
to 15 to 25 kt in the afternoon. chance of showers in the 
afternoon. waves 1 to 2 ft.
.sunday night...northwest winds 10 to 15 kt becoming north
overnight. partly cloudy in the evening then clearing. waves 1 to
2 ft.  

$$

fzus53 klot 181416
nshlot
expires:202604182200;;583730

nearshore marine forecast
national weather service chicago/romeoville il
916 am cdt sat apr 18 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>745-182200-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
916 am cdt sat apr 18 2026

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

.rest of today...northwest winds 20 to 25 kt. mostly cloudy through
early afternoon, then partly cloudy. waves 2 to 4 ft building to 
3 to 5 ft.
.tonight...west winds 20 to 25 kt diminishing to 10 to 15 kt. 
mostly clear. waves 3 to 5 ft subsiding to 1 to 3 ft. 
.sunday...southwest winds 10 to 20 kt becoming northwest and
increasing to 15 to 25 kt in the afternoon. chance of showers in 
the afternoon. waves 1 to 3 ft. 
.sunday night...north winds 10 to 15 kt. partly cloudy in the
evening, then becoming mostly clear. waves 1 to 2 ft.  

$$

fzus53 kmkx 181810
nshmkx
expires:202604182200;;591794

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 pm cdt sat apr 18 2026

for waters within five nautical miles of shore on lake michigan


lmz643-182200-
sheboygan to port washington wi-
110 pm cdt sat apr 18 2026

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

.rest of today...west wind 10 to 20 knots rising to 15 to
25 knots late in the afternoon. mostly cloudy. waves 1 to 3 feet.
.tonight...west wind 15 to 25 knots becoming 15 to 20 knots late
in the evening, then easing to 10 to 15 knots after midnight.
mostly clear. waves 1 to 2 feet. 
.sunday...west wind 10 to 15 knots veering northwest late in the
afternoon. chance of showers and slight chance of snow showers in
the morning. chance of sprinkles in the afternoon. waves 1 to
2 feet. 
.sunday night...north wind 10 to 15 knots veering northeast late
in the evening, then becoming northeast 10 to 15 knots after
midnight becoming north 5 to 10 knots early in the morning.
chance of sprinkles through around midnight. waves 1 to 2 feet. 

$$

fzus53 kmkx 181810
nshmkx
expires:202604182200;;591795

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 pm cdt sat apr 18 2026

for waters within five nautical miles of shore on lake michigan


lmz644-182200-
port washington to north point light wi-
110 pm cdt sat apr 18 2026

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

.rest of today...west wind 10 to 20 knots rising to 15 to
25 knots late in the afternoon. mostly cloudy. waves 1 to 3 feet.
.tonight...west wind 15 to 25 knots becoming 15 to 20 knots late
in the evening, then easing to 10 to 15 knots after midnight.
partly cloudy through around midnight then clearing. waves 1 to
2 feet. 
.sunday...west wind 10 to 15 knots veering northwest late in the
afternoon. slight chance of snow showers in the morning. slight
chance of showers through the day. waves 1 to 2 feet. 
.sunday night...north wind 10 to 15 knots veering northeast late
in the evening, then becoming northeast 10 to 15 knots after
midnight easing to 5 to 10 knots early in the morning. partly
cloudy. waves 1 to 2 feet. 

$$

fzus53 kmkx 181810
nshmkx
expires:202604182200;;591796

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 pm cdt sat apr 18 2026

for waters within five nautical miles of shore on lake michigan


lmz645-182200-
north point light to wind point wi-
110 pm cdt sat apr 18 2026

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

.rest of today...west wind 15 to 20 knots becoming 10 to 20 knots
late in the afternoon. gusts up to 25 knots. mostly cloudy. waves
1 to 2 feet. 
.tonight...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 clearing. waves 1 to 2 feet. 
.sunday...west wind 10 to 15 knots veering northwest late in the
afternoon. slight chance of snow showers in the morning. slight
chance of showers through the day. waves 1 to 2 feet. 
.sunday night...north wind 10 to 15 knots veering northeast late
in the evening, then becoming northeast 10 to 15 knots after
midnight easing to 5 to 10 knots early in the morning. slight
chance of showers through around midnight. waves 1 to 2 feet. 

$$

fzus53 kmkx 181810
nshmkx
expires:202604182200;;591797

nearshore marine forecast
national weather service milwaukee/sullivan wi
110 pm cdt sat apr 18 2026

for waters within five nautical miles of shore on lake michigan


lmz646-182200-
wind point wi to winthrop harbor il-
110 pm cdt sat apr 18 2026

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

.rest of today...west wind 10 to 20 knots with gusts to around
25 knots. partly sunny. waves 1 to 2 feet. 
.tonight...west wind 15 to 20 knots with gusts to around 25 knots
becoming 10 to 20 knots late in the evening, then becoming 10 to
15 knots after midnight becoming west 10 to 15 knots early in the
morning. partly cloudy through around midnight then becoming
clear. waves around 1 foot. 
.sunday...west wind 10 to 15 knots veering northwest with gusts
to around 20 knots late in the afternoon. slight chance of
showers through the day. waves around 1 foot. 
.sunday night...north wind 10 to 15 knots veering northeast after
midnight, then easing to 5 to 10 knots early in the morning.
slight chance of showers through around midnight. waves 1 to
2 feet. 

$$