fzus53 kapx 220203
nshapx
expires:202608221015;;140461

nearshore marine forecast
national weather service gaylord mi
1003 pm edt fri aug 21 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.


lmz346-221015-
manistee to point betsie mi-
1003 pm edt fri aug 21 2026

.overnight...southwest wind 5 to 10 knots becoming north 10 to
15 knots early in the morning. chance of thunderstorms early in
the evening. chance of showers through the night. slight chance
of thunderstorms after midnight. waves 2 to 3 feet. 
.saturday...north wind 10 to 15 knots. scattered showers and
thunderstorms. waves 2 to 3 feet. 
.saturday night...north wind 10 to 20 knots. partly cloudy. waves
3 to 5 feet. 
.sunday...north wind 10 to 20 knots. mostly sunny. waves 3 to
5 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 220456
nshgrb
expires:202608221000;;146125

nearshore marine forecast
national weather service green bay wi
1156 pm cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz541>543-221000-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
1156 pm cdt fri aug 21 2026

.rest of tonight...nw wind 10 to 15 kts. waves 2 to 4 ft. a
slight chance of showers and thunderstorms late in the evening. 
.saturday...n wind 10 to 15 kts. waves 1 to 3 ft. a chance of
showers and thunderstorms in the afternoon. 
.saturday night...n wind 10 to 20 kts. waves 1 to 3 ft. mostly
clear. 
.sunday...n wind 10 to 15 kts. waves 1 to 3 ft. mostly sunny.  

$$

fzus53 kgrr 220456
nshgrr
expires:202608220800;;146118

nearshore marine forecast
national weather service grand rapids mi
1256 am edt sat aug 22 2026

for waters within five nautical miles of shore on lake michigan


lmz849-220800-
pentwater to manistee mi-
1256 am edt sat aug 22 2026

...small craft advisory in effect from 8 am edt this morning through
sunday evening...

.rest of tonight...southwest winds 5 to 15 knots veering west after
midnight. mostly cloudy with a chance of rain showers and a slight
chance of thunderstorms. waves 1 to 3 feet. 
.saturday...north winds 10 to 20 knots. mostly sunny with a slight
chance of showers and thunderstorms. waves 2 to 4 feet. 
.saturday night...north winds 15 to 25 knots. partly cloudy with a
slight chance of showers and thunderstorms. waves 3 to 6 feet.
.sunday...north winds 20 to 25 knots. mostly sunny. waves 4 to
6 feet. 
.sunday night...north winds 15 to 25 knots decreasing to 10 to
15 knots after midnight. mostly clear. waves 3 to 5 feet. 
.monday...northwest winds 10 to 15 knots. sunny. waves 1 to 3 feet. 
.tuesday...southwest winds 5 to 15 knots increasing to 15 to
20 knots early in the afternoon. mostly sunny. waves 1 to 3 feet. 
.wednesday...southwest winds 15 to 25 knots. mostly sunny with a
chance of rain showers. waves 3 to 5 feet. 

$$

fzus53 kgrr 220456
nshgrr
expires:202608220800;;146123

nearshore marine forecast
national weather service grand rapids mi
1256 am edt sat aug 22 2026

for waters within five nautical miles of shore on lake michigan


lmz844-220800-
st joseph to south haven mi-
1256 am edt sat aug 22 2026

...small craft advisory in effect from 8 am edt this morning through
sunday evening...

.rest of tonight...southwest winds 10 to 15 knots. partly cloudy
with a chance of showers and thunderstorms. waves 1 to 2 feet. 
.saturday...west winds 15 to 20 knots veering northwest 20 to
25 knots in the late morning and afternoon. mostly sunny with a
slight chance of showers and thunderstorms. waves 2 to 4 feet
building to 3 to 5 feet in the late morning and afternoon. 
.saturday night...north winds 15 to 20 knots. mostly clear with a
slight chance of rain showers. waves 3 to 5 feet. 
.sunday...northwest winds 20 to 25 knots. sunny. waves 4 to 6 feet. 
.sunday night...north winds 15 to 25 knots decreasing to 5 to
15 knots in the late evening and overnight. mostly clear. waves 4 to
6 feet subsiding to 2 to 4 feet after midnight. 
.monday...north winds 5 to 10 knots backing northwest early in the
afternoon. sunny. waves 1 to 3 feet. 
.tuesday...south winds 5 to 10 knots veering southwest early in the
afternoon. mostly sunny. waves less than 1 foot. 
.wednesday...southwest winds 10 to 15 knots. partly sunny. waves
1 to 2 feet. 

$$

fzus53 kgrr 220456
nshgrr
expires:202608220800;;146122

nearshore marine forecast
national weather service grand rapids mi
1256 am edt sat aug 22 2026

for waters within five nautical miles of shore on lake michigan


lmz845-220800-
south haven to holland mi-
1256 am edt sat aug 22 2026

...small craft advisory in effect from 8 am edt this morning through
sunday evening...

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

$$

fzus53 kgrr 220456
nshgrr
expires:202608220800;;146121

nearshore marine forecast
national weather service grand rapids mi
1256 am edt sat aug 22 2026

for waters within five nautical miles of shore on lake michigan


lmz846-220800-
holland to grand haven mi-
1256 am edt sat aug 22 2026

...small craft advisory in effect from 8 am edt this morning through
sunday evening...

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

$$

fzus53 kgrr 220456
nshgrr
expires:202608220800;;146120

nearshore marine forecast
national weather service grand rapids mi
1256 am edt sat aug 22 2026

for waters within five nautical miles of shore on lake michigan


lmz847-220800-
grand haven to whitehall mi-
1256 am edt sat aug 22 2026

...small craft advisory in effect from 8 am edt this morning through
sunday evening...

.rest of tonight...southwest winds around 15 knots. mostly cloudy
with a chance of showers and thunderstorms. waves 1 to 2 feet. 
.saturday...northwest winds to 30 knots. mostly sunny with a slight
chance of showers and thunderstorms. waves 3 to 5 feet. 
.saturday night...north winds 15 to 25 knots. mostly clear. waves
3 to 5 feet. 
.sunday...northwest winds to 30 knots. sunny. waves 4 to 6 feet. 
.sunday night...north winds to 30 knots decreasing to 10 to 15 knots
in the late evening and overnight. mostly clear. waves 4 to 6 feet
subsiding to 1 to 2 feet. 
.monday...north winds 10 to 15 knots backing northwest early in the
afternoon. sunny. waves 1 to 2 feet. 
.tuesday...south winds 5 to 15 knots veering southwest around
15 knots early in the afternoon. mostly sunny. waves 1 to 2 feet. 
.wednesday...southwest winds around 20 knots. partly sunny with a
chance of rain showers. waves 3 to 5 feet. 

$$

fzus53 kgrr 220456
nshgrr
expires:202608220800;;146119

nearshore marine forecast
national weather service grand rapids mi
1256 am edt sat aug 22 2026

for waters within five nautical miles of shore on lake michigan


lmz848-220800-
whitehall to pentwater mi-
1256 am edt sat aug 22 2026

...small craft advisory in effect from 8 am edt this morning through
sunday evening...

.rest of tonight...south winds 10 to 15 knots veering west after
midnight. mostly cloudy with a chance of rain showers and a slight
chance of thunderstorms. waves 1 to 3 feet. 
.saturday...northwest winds 15 to 25 knots. mostly sunny with a
slight chance of showers and thunderstorms. waves 3 to 5 feet. 
.saturday night...north winds 20 to 25 knots. partly cloudy. waves
4 to 6 feet. 
.sunday...northwest winds to 30 knots. sunny. waves 4 to 6 feet. 
.sunday night...north winds 15 to 25 knots decreasing to 10 to
15 knots after midnight. mostly clear. waves 4 to 6 feet subsiding
to 2 to 4 feet after midnight. 
.monday...northwest winds 10 to 15 knots. sunny. waves 1 to 3 feet. 
.tuesday...south winds 5 to 15 knots veering southwest 15 to
20 knots early in the afternoon. mostly sunny. waves 1 to 3 feet. 
.wednesday...southwest winds 15 to 20 knots. partly sunny with a
chance of rain showers. waves 3 to 5 feet. 

$$

fzus53 kiwx 220240
nshiwx
expires:202608220815;;141914

nearshore marine forecast
national weather service northern indiana
1040 pm edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz046-220815-
michigan city in to new buffalo mi-
1040 pm edt fri aug 21 2026

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

.overnight...south winds 5 to 10 knots becoming southwest.
a chance of showers and thunderstorms. waves 1 foot or less. 
.saturday...west winds 10 to 15 knots becoming northwest. gusts
up to 25 knots. a slight chance of showers and thunderstorms.
waves 1 to 2 feet building to 3 to 5 feet. 
.saturday night...north winds 10 to 15 knots. a slight chance of
showers overnight. waves 2 to 4 feet. 
.sunday...northwest winds 15 to 20 knots becoming north 10 to
15 knots. gusts up to 25 knots. a slight chance of showers in the
morning. waves 3 to 5 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 62 degrees and at michigan
city is 63 degrees.

$$

fzus53 kiwx 220240
nshiwx
expires:202608220815;;141915

nearshore marine forecast
national weather service northern indiana
1040 pm edt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz043-220815-
new buffalo mi to st joseph mi-
1040 pm edt fri aug 21 2026

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

.overnight...south winds 5 to 10 knots becoming southwest.
a chance of showers and thunderstorms. waves 1 foot or less. 
.saturday...west winds 10 to 15 knots becoming northwest 15 to
20 knots. gusts up to 25 knots. a chance of showers with a slight
chance of thunderstorms in the morning. waves 1 to 2 feet
building to 3 to 5 feet. 
.saturday night...north winds 10 to 15 knots. a slight chance of
showers overnight. waves 2 to 4 feet. 
.sunday...north winds 10 to 15 knots increasing to 15 to
20 knots. gusts up to 25 knots. a slight chance of showers in the
morning. waves 3 to 6 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 62 degrees and at michigan
city is 63 degrees.

$$

fzus53 klot 220247
nshlot
expires:202608220930;;142082

nearshore marine forecast
national weather service chicago/romeoville il
947 pm cdt fri aug 21 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.


lmz743-744-220930-
calumet harbor il to gary in-gary to burns harbor in-
947 pm cdt fri aug 21 2026

.rest of tonight...southwest winds around 10 kt. chance of 
showers before midnight. waves 1 to 2 ft. 
.saturday...northwest winds 10 to 20 kt becoming north in the
afternoon. slight chance of thunderstorms with isolated showers
in the afternoon. waves 2 to 4 ft. 
.saturday night...northwest winds 10 to 15 kt becoming north.
mostly clear in the evening, then becoming partly cloudy. waves
2 to 4 ft.
.sunday...northwest winds 10 to 20 kt becoming north in the
afternoon. mostly sunny. waves 3 to 5 ft.

$$

fzus53 klot 220247
nshlot
expires:202608220930;;142083

nearshore marine forecast
national weather service chicago/romeoville il
947 pm cdt fri aug 21 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.


lmz745-220930-
burns harbor to michigan city in-
947 pm cdt fri aug 21 2026

.rest of tonight...southwest winds 10 kt. chance of showers. 
waves 1 to 2 ft. 
.saturday...northwest winds 15 to 20 kt. slight chance of
thunderstorms with isolated showers in the afternoon. waves 3 to
5 ft. a small craft advisory will likely be needed. 
.saturday night...northwest winds 15 to 20 kt becoming north.
slight chance of showers overnight. waves 3 to 5 ft. 
.sunday...northwest winds 15 to 20 kt becoming north. mostly
sunny. waves 3 to 6 ft occasionally to 8 ft. a small craft 
advisory will likely be needed.

$$

fzus53 klot 220247
nshlot
expires:202608220930;;142081

nearshore marine forecast
national weather service chicago/romeoville il
947 pm cdt fri aug 21 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>742-220930-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
947 pm cdt fri aug 21 2026

.rest of tonight...southwest winds around 10 kt. chance of 
showers before midnight. waves 1 to 2 ft. 
.saturday...northwest winds 10 to 20 kt becoming north. scattered
showers and slight chance of thunderstorms in the afternoon.
waves 2 to 4 ft. 
.saturday night...northwest winds 10 to 15 kt becoming north.
mostly clear. waves 2 to 4 ft. 
.sunday...northwest winds 10 to 15 kt becoming north. mostly
sunny. waves 2 to 4 ft.

$$

fzus53 kmkx 220410
nshmkx
expires:202608221000;;145094

nearshore marine forecast
national weather service milwaukee/sullivan wi
1110 pm cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz644-221000-
port washington to north point light wi-
1110 pm cdt fri aug 21 2026

.rest of tonight...west wind 10 to 15 knots veering northwest
early in the morning. partly cloudy. waves 1 to 2 feet. 
.saturday...northwest wind 10 to 15 knots. slight chance of
showers and thunderstorms in the afternoon. waves 1 to 2 feet. 
.saturday night...north wind 10 to 15 knots backing northwest
early in the morning. chance of showers and slight chance of
thunderstorms through around midnight. waves 1 to 2 feet. 
.sunday...northwest wind 10 to 15 knots veering north late in the
afternoon. sunny. waves 1 to 2 feet. 

$$

fzus53 kmkx 220410
nshmkx
expires:202608221000;;145096

nearshore marine forecast
national weather service milwaukee/sullivan wi
1110 pm cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz646-221000-
wind point wi to winthrop harbor il-
1110 pm cdt fri aug 21 2026

.rest of tonight...west wind 10 to 15 knots veering northwest
early in the morning. partly cloudy. waves 1 to 2 feet. 
.saturday...northwest wind 10 to 20 knots becoming 10 to 15 knots
late in the morning, then veering north early in the afternoon
becoming north 10 to 15 knots late in the afternoon. slight
chance of showers and thunderstorms in the afternoon. waves 1 to
2 feet. 
.saturday night...northwest wind 10 to 15 knots veering north in
the late evening and early morning, then backing northwest early
in the morning. slight chance of showers and thunderstorms
through around midnight. waves 1 to 2 feet building to 2 to
4 feet after midnight. 
.sunday...northwest wind 10 to 15 knots veering north late in the
afternoon. sunny. waves 2 to 4 feet. 

$$

fzus53 kmkx 220410
nshmkx
expires:202608221000;;145093

nearshore marine forecast
national weather service milwaukee/sullivan wi
1110 pm cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz643-221000-
sheboygan to port washington wi-
1110 pm cdt fri aug 21 2026

.rest of tonight...northwest wind 5 to 15 knots becoming 10 to
15 knots early in the morning. partly cloudy. waves 1 to 2 feet. 
.saturday...northwest wind 10 to 15 knots veering north late in
the afternoon. slight chance of showers and thunderstorms in the
afternoon. waves 1 to 2 feet. 
.saturday night...north wind 10 to 15 knots backing northwest
early in the morning. slight chance of showers and thunderstorms
through around midnight. waves 1 to 2 feet. 
.sunday...northwest wind 10 to 15 knots veering north late in the
afternoon. sunny. waves 1 to 2 feet. 

$$

fzus53 kmkx 220410
nshmkx
expires:202608221000;;145095

nearshore marine forecast
national weather service milwaukee/sullivan wi
1110 pm cdt fri aug 21 2026

for waters within five nautical miles of shore on lake michigan


lmz645-221000-
north point light to wind point wi-
1110 pm cdt fri aug 21 2026

.rest of tonight...west wind 10 to 15 knots veering northwest
early in the morning. partly cloudy. waves 1 to 2 feet. 
.saturday...northwest wind 15 to 20 knots easing to 10 to
15 knots late in the morning, then veering north early in the
afternoon becoming north 10 to 15 knots late in the afternoon.
slight chance of showers and thunderstorms in the afternoon.
waves 2 to 4 feet subsiding to 1 to 2 feet in the afternoon. 
.saturday night...north wind 10 to 15 knots backing northwest
early in the morning. chance of showers and slight chance of
thunderstorms through around midnight. waves 1 to 2 feet building
to 2 to 4 feet after midnight. 
.sunday...northwest wind 10 to 15 knots veering north late in the
afternoon. sunny. waves 2 to 4 feet. 

$$