fzus53 kapx 181417
nshapx
expires:202510190000;;344461

nearshore marine forecast
national weather service gaylord mi
1017 am edt sat oct 18 2025

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.


lmz346-190000-
manistee to point betsie mi-
1017 am edt sat oct 18 2025

...gale warning in effect from sunday morning through sunday
evening...

.today...southwest wind 10 to 15 knots. scattered showers in the
late morning. waves 3 to 5 feet. 
.tonight...southeast wind 15 to 20 knots. rain and slight chance
of thunderstorms. waves 2 feet or less. 
.sunday...northwest wind up to 30 knots with gusts to around
35 knots. rain. waves 6 to 9 feet. 
.sunday night...northwest wind 15 to 25 knots with gusts to
around 35 knots. partly cloudy. waves 5 to 8 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 181552
nshgrb
expires:202510190200;;346808

nearshore marine forecast
national weather service green bay wi
1052 am cdt sat oct 18 2025

for waters within five nautical miles of the shore on lake michigan


lmz542-543-190200-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
1052 am cdt sat oct 18 2025

...gale warning in effect from late tonight through sunday
afternoon...

.this afternoon...sw wind 5 to 10 kts. mostly sunny. waves 2 to
4 ft subsiding to 1 to 3 ft late. 
.tonight...sw wind 5 to 10 kts becoming n 15 to 25 kts with gusts
to around 35 kts after midnight. a chance of rain showers in the
evening, then rain showers after midnight. waves 1 to 3 ft
building to 2 to 4 ft early in the morning. 
.sunday...nw wind to around 30 kts with gusts to around 35 kts.
light rain showers likely in the morning. waves 3 to 5 ft
subsiding to 2 to 4 ft late in the afternoon. 
.sunday night...nw wind 10 to 20 kts. gusts to around 25 kts in
the evening. clear. waves 1 to 3 ft. a small craft advisory may
be needed. 

$$

fzus53 kgrr 181348
nshgrr
expires:202510182100;;342949

nearshore marine forecast
national weather service grand rapids mi
948 am edt sat oct 18 2025

for waters within five nautical miles of shore on lake michigan


lmz844-182100-
st joseph to south haven mi-
948 am edt sat oct 18 2025

...small craft advisory in effect until 8 pm edt this evening...
...gale warning in effect from sunday morning through sunday
evening...

.rest of today...southwest winds 15 to 20 knots. rain showers and a
chance of thunderstorms late in the morning, then a chance of rain
showers and a slight chance of thunderstorms in the afternoon. waves
2 to 4 feet.
.tonight...south winds 10 to 20 knots veering west after midnight.
rain showers and a chance of thunderstorms. waves 1 to 2 feet. 
.sunday...northwest gales to 40 knots. rain showers. waves 5 to
7 feet building to 13 to 17 feet in the late morning and afternoon. 
.sunday night...northwest gales to 35 knots decreasing to 20 to
25 knots after midnight. partly cloudy with rain showers likely.
waves 12 to 16 feet subsiding to 7 to 10 feet after midnight. 
.monday...west winds 15 to 25 knots backing southwest in the late
morning and afternoon. sunny. waves 5 to 7 feet subsiding to 3 to
5 feet in the late morning and afternoon. 
.tuesday...west gales to 35 knots. partly sunny with rain showers
likely. waves 8 to 12 feet. 
.wednesday...northwest gales to 35 knots decreasing to 30 knots in
the late morning and afternoon. partly sunny with a chance of rain
showers. waves 8 to 12 feet. 

$$

fzus53 kgrr 181348
nshgrr
expires:202510182100;;342948

nearshore marine forecast
national weather service grand rapids mi
948 am edt sat oct 18 2025

for waters within five nautical miles of shore on lake michigan


lmz845-182100-
south haven to holland mi-
948 am edt sat oct 18 2025

...small craft advisory in effect until 8 pm edt this evening...
...gale warning in effect from sunday morning through sunday
evening...

.rest of today...southwest winds 15 to 20 knots. mostly cloudy with
a chance of showers and thunderstorms. waves 3 to 5 feet. 
.tonight...south winds 10 to 20 knots veering southwest after
midnight. rain showers and a slight chance of thunderstorms. waves
2 to 3 feet. 
.sunday...northwest winds to 30 knots increasing to gales to
40 knots in the late morning and afternoon. rain showers. waves 4 to
6 feet building to 12 to 16 feet in the late morning and afternoon. 
.sunday night...northwest gales to 35 knots decreasing to 20 to
25 knots after midnight. partly cloudy with rain showers likely.
waves 12 to 16 feet subsiding to 7 to 10 feet after midnight. 
.monday...west winds 15 to 25 knots backing southwest in the late
morning and afternoon. sunny. waves 5 to 7 feet subsiding to 3 to
5 feet in the late morning and afternoon. 
.tuesday...west gales to 35 knots. rain showers. waves 10 to
14 feet. 
.wednesday...northwest gales to 35 knots decreasing to 30 knots in
the late morning and afternoon. partly sunny with a chance of rain
showers. waves 9 to 13 feet subsiding to 6 to 9 feet early in the
afternoon. 

$$

fzus53 kgrr 181348
nshgrr
expires:202510182100;;342947

nearshore marine forecast
national weather service grand rapids mi
948 am edt sat oct 18 2025

for waters within five nautical miles of shore on lake michigan


lmz846-182100-
holland to grand haven mi-
948 am edt sat oct 18 2025

...small craft advisory in effect until 8 pm edt this evening...
...gale warning in effect from sunday morning through sunday
evening...

.rest of today...southwest winds 15 to 25 knots. mostly cloudy with
a chance of showers and thunderstorms. waves 4 to 6 feet. 
.tonight...south winds 10 to 20 knots. rain showers and a slight
chance of thunderstorms. waves 2 to 4 feet subsiding to 1 to 2 feet
in the late evening and overnight. 
.sunday...northwest winds to 30 knots increasing to gales to
40 knots in the late morning and afternoon. rain showers. waves 3 to
5 feet building to 10 to 14 feet in the late morning and afternoon. 
.sunday night...northwest gales to 35 knots decreasing to 20 to
25 knots after midnight. partly cloudy with rain showers likely.
waves 10 to 14 feet subsiding to 7 to 10 feet after midnight. 
.monday...west winds 15 to 25 knots backing southwest in the late
morning and afternoon. sunny. waves 5 to 7 feet. 
.tuesday...west gales to 40 knots. rain showers. waves 11 to
15 feet. 
.wednesday...northwest winds to 30 knots. partly sunny with a chance
of rain showers. waves 8 to 12 feet. 

$$

fzus53 kgrr 181348
nshgrr
expires:202510182100;;342946

nearshore marine forecast
national weather service grand rapids mi
948 am edt sat oct 18 2025

for waters within five nautical miles of shore on lake michigan


lmz847-182100-
grand haven to whitehall mi-
948 am edt sat oct 18 2025

...small craft advisory in effect until 8 pm edt this evening...
...gale warning in effect from sunday morning through sunday
evening...

.rest of today...southwest winds 15 to 25 knots. mostly cloudy with
a chance of showers and thunderstorms. waves 5 to 7 feet. 
.tonight...south winds 10 to 20 knots backing east after midnight.
rain showers and a slight chance of thunderstorms. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.sunday...north winds to 30 knots becoming northwest gales to
40 knots in the late morning and afternoon. rain showers. waves 3 to
5 feet building to 9 to 13 feet in the late morning and afternoon. 
.sunday night...northwest gales to 35 knots decreasing to 30 knots
in the late evening and overnight. partly cloudy with rain showers
likely. waves 9 to 13 feet. 
.monday...west winds 15 to 20 knots backing southwest to 30 knots in
the late morning and afternoon. sunny. waves 4 to 6 feet building to
6 to 9 feet early in the afternoon. 
.tuesday...west gales to 40 knots. rain showers. waves 10 to
14 feet. 
.wednesday...northwest gales to 35 knots decreasing to 30 knots in
the late morning and afternoon. partly sunny with a chance of rain
showers. waves 7 to 11 feet. 

$$

fzus53 kgrr 181348
nshgrr
expires:202510182100;;342945

nearshore marine forecast
national weather service grand rapids mi
948 am edt sat oct 18 2025

for waters within five nautical miles of shore on lake michigan


lmz848-182100-
whitehall to pentwater mi-
948 am edt sat oct 18 2025

...small craft advisory in effect until 8 pm edt this evening...
...gale warning in effect from sunday morning through sunday
evening...

.rest of today...southwest winds 15 to 20 knots. mostly cloudy with
a chance of showers and thunderstorms. waves 5 to 7 feet. 
.tonight...south winds 10 to 20 knots backing east after midnight.
rain showers and a slight chance of thunderstorms. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.sunday...north winds to 30 knots becoming northwest gales to
40 knots in the late morning and afternoon. rain showers. waves 4 to
6 feet building to 9 to 13 feet in the late morning and afternoon. 
.sunday night...northwest gales to 35 knots decreasing to 30 knots
in the late evening and overnight. partly cloudy. waves 8 to 12 feet
subsiding to 6 to 8 feet after midnight. 
.monday...west winds 15 to 20 knots backing southwest to 30 knots in
the late morning and afternoon. mostly sunny. waves 3 to 5 feet
building to 6 to 9 feet early in the afternoon. 
.tuesday...west gales to 40 knots. mostly cloudy with rain showers.
waves 10 to 14 feet. 
.wednesday...northwest gales to 35 knots decreasing to 30 knots in
the late morning and afternoon. partly sunny with a chance of rain
showers. waves 7 to 11 feet. 

$$

fzus53 kgrr 181348
nshgrr
expires:202510182100;;342944

nearshore marine forecast
national weather service grand rapids mi
948 am edt sat oct 18 2025

for waters within five nautical miles of shore on lake michigan


lmz849-182100-
pentwater to manistee mi-
948 am edt sat oct 18 2025

...small craft advisory in effect until 8 pm edt this evening...
...gale warning in effect from sunday morning through sunday
evening...

.rest of today...southwest winds 10 to 20 knots. mostly cloudy. a
chance of showers and thunderstorms late in the morning, then a
slight chance of rain showers in the afternoon. waves 4 to 6 feet. 
.tonight...south winds 10 to 20 knots backing east after midnight.
rain showers and a slight chance of thunderstorms. waves 2 to 4 feet
subsiding to 1 to 3 feet in the late evening and overnight. 
.sunday...north winds to 30 knots backing northwest gales to
35 knots in the late morning and afternoon. rain showers and a
slight chance of thunderstorms. waves 4 to 6 feet building to 8 to
12 feet in the late morning and afternoon. 
.sunday night...northwest gales to 35 knots decreasing to 30 knots
in the late evening and overnight. partly cloudy. waves 7 to 10 feet
subsiding to 5 to 7 feet after midnight. 
.monday...west winds 10 to 20 knots backing southwest 15 to 25 knots
in the late morning and afternoon. mostly sunny. waves 2 to 4 feet
building to 5 to 7 feet early in the afternoon. 
.tuesday...west winds to 30 knots increasing to gales to 35 knots in
the late morning and afternoon. rain showers. waves 8 to 12 feet. 
.wednesday...northwest winds to 30 knots. mostly cloudy with a
chance of rain showers. waves 6 to 9 feet. 

$$

fzus53 kiwx 181339
nshiwx
expires:202510182015;;342695

nearshore marine forecast
national weather service northern indiana
939 am edt sat oct 18 2025

for waters within five nautical miles of shore on lake michigan


lmz043-182015-
new buffalo mi to st joseph mi-
939 am edt sat oct 18 2025

...gale warning in effect from sunday morning through sunday
evening...

.rest of today...south winds 15 to 20 knots becoming southwest
10 to 15 knots. showers with a chance of thunderstorms. waves 1 
to 3 feet. 
.tonight...southwest winds 5 to 10 knots becoming northwest.
showers with a chance of thunderstorms. waves 2 feet or less. 
.sunday...northwest winds 15 to 25 knots increasing to 30 knots.
gusts up to 40 knot gales. showers. waves 3 to 5 feet building to
10 to 15 feet. 
.sunday night...northwest winds to 30 knots becoming west and
diminishing to 15 to 20 knots. gusts up to 35 knot gales. showers
likely in the evening. waves 10 to 15 feet subsiding to 5 to
8 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 51 degrees and at michigan
city is 57 degrees.

$$

fzus53 kiwx 181339
nshiwx
expires:202510182015;;342694

nearshore marine forecast
national weather service northern indiana
939 am edt sat oct 18 2025

for waters within five nautical miles of shore on lake michigan


lmz046-182015-
michigan city in to new buffalo mi-
939 am edt sat oct 18 2025

...gale warning in effect from sunday morning through sunday
evening...

.rest of today...south winds 10 to 15 knots becoming southwest.
showers with a chance of thunderstorms. waves 1 to 2 feet. 
.tonight...southwest winds 5 to 15 knots becoming northwest.
showers with a chance of thunderstorms. waves 1 foot or less. 
.sunday...northwest winds 15 to 25 knots increasing to 30 knots.
gusts up to 40 knot gales. rainwaves 3 to 5 feet building to 10 
to 14 feet. 
.sunday night...northwest winds 15 to 25 knots becoming west.
gusts up to 35 knot gales. showers likely in the evening. waves
10 to 13 feet subsiding to 4 to 7 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 51 degrees and at michigan
city is 57 degrees.

$$

fzus53 klot 181519
nshlot
expires:202510182130;;346332

nearshore marine forecast
national weather service chicago/romeoville il
1019 am cdt sat oct 18 2025

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.


lmz744-745-182130-
gary to burns harbor in-burns harbor to michigan city in-
1019 am cdt sat oct 18 2025

...gale warning in effect from sunday morning through sunday
evening...

.rest of today...south winds 15 to 20 kt becoming southwest.
chance of showers and slight chance of thunderstorms late in the
morning, then showers likely and a chance of thunderstorms in the
afternoon. waves 1 to 2 ft. 
.tonight...south winds 10 to 15 kt becoming west and increasing
to 15 to 25 kt overnight. showers and a chance of thunderstorms
in the evening, then rain and slight chance of thunderstorms
overnight. waves 1 to 2 ft building to 2 to 4 ft. 
.sunday...northwest gales to 40 kt. rain in the morning, then 
chance of rain in the afternoon. waves 8 to 12 ft occasionally to 
16 ft building to 10 to 14 ft occasionally to 18 ft. 
.sunday night...northwest winds to 30 kt becoming west and
diminishing to 10 to 20 kt. mostly clear. waves 8 to 12 ft
occasionally to 16 ft subsiding to 5 to 8 ft occasionally to
10 ft.  

$$

fzus53 klot 181519
nshlot
expires:202510182130;;346331

nearshore marine forecast
national weather service chicago/romeoville il
1019 am cdt sat oct 18 2025

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>743-182130-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
calumet harbor il to gary in-
1019 am cdt sat oct 18 2025

...gale warning in effect from sunday morning through sunday
evening...

.rest of today...southwest winds 15 to 20 kt diminishing to 10 to
15 kt. a chance of showers and thunderstorms in the afternoon. 
waves 1 to 3 ft.
.tonight...south winds 10 to 15 kt becoming west and increasing
to 15 to 25 kt overnight. showers and a chance of thunderstorms
in the evening, then rain and slight chance of thunderstorms
overnight. waves 1 to 2 ft building to 2 to 4 ft. 
.sunday...northwest gales to 35 kt. rain in the morning, then
chance of rain in the afternoon. waves 5 to 8 ft occasionally to
10 ft. 
.sunday night...northwest winds to 30 kt becoming west and
diminishing to 10 to 20 kt. clear. waves 4 to 7 ft occasionally
to 9 ft subsiding to 3 to 5 ft. 

$$

fzus53 kmkx 181611
nshmkx
expires:202510182200;;347756

nearshore marine forecast
national weather service milwaukee/sullivan wi
1111 am cdt sat oct 18 2025

for waters within five nautical miles of shore on lake michigan


lmz643-182200-
sheboygan to port washington wi-
1111 am cdt sat oct 18 2025

...gale warning in effect from sunday morning through sunday
evening...

.rest of today...southwest wind 10 to 15 knots easing to 5 to
10 knots late in the afternoon. sunny. waves 2 to 4 feet
subsiding to 1 to 2 feet late in the afternoon. 
.tonight...south wind 5 to 10 knots veering southwest late in the
evening, then veering northwest 5 to 15 knots after midnight
rising to 15 to 25 knots early in the morning. chance of showers
through around midnight. slight chance of thunderstorms through
the night. rain showers after midnight. waves 1 to 2 feet
building to 2 to 4 feet early in the morning. 
.sunday...northwest wind up to 30 knots. gusts up to 35 knots.
rain showers likely in the morning, then slight chance of showers
in the afternoon. waves 4 to 6 feet. 
.sunday night...northwest wind up to 30 knots easing to 15 to
25 knots late in the evening, then becoming west 10 to 20 knots
after midnight becoming 10 to 15 knots early in the morning.
mostly clear. waves 3 to 4 feet subsiding to 1 to 2 feet after
midnight. 

$$

fzus53 kmkx 181611
nshmkx
expires:202510182200;;347757

nearshore marine forecast
national weather service milwaukee/sullivan wi
1111 am cdt sat oct 18 2025

for waters within five nautical miles of shore on lake michigan


lmz644-182200-
port washington to north point light wi-
1111 am cdt sat oct 18 2025

...gale warning in effect from sunday morning through sunday
evening...

.rest of today...southwest wind 10 to 15 knots easing to 5 to
10 knots 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 veering northwest 5 to 15 knots after midnight
rising to 15 to 25 knots early in the morning. chance of showers
through around midnight. slight chance of thunderstorms through
the night. rain showers after midnight. waves around 1 foot
building to 2 to 4 feet early in the morning. 
.sunday...northwest wind up to 30 knots. gusts up to 35 knots.
rain showers likely in the morning, then slight chance of showers
in the afternoon. waves 4 to 6 feet. 
.sunday night...northwest wind up to 30 knots becoming west 15 to
25 knots late in the evening, then easing to 10 to 20 knots after
midnight becoming 10 to 15 knots early in the morning. mostly
clear. waves 3 to 5 feet subsiding to 1 to 2 feet after midnight.

$$

fzus53 kmkx 181611
nshmkx
expires:202510182200;;347758

nearshore marine forecast
national weather service milwaukee/sullivan wi
1111 am cdt sat oct 18 2025

for waters within five nautical miles of shore on lake michigan


lmz645-182200-
north point light to wind point wi-
1111 am cdt sat oct 18 2025

...gale warning in effect from sunday morning through sunday
evening...

.rest of today...southwest wind 10 to 15 knots easing to 5 to
10 knots late in the afternoon. partly sunny. waves 1 to 2 feet. 
.tonight...south wind 5 to 10 knots veering west 5 to 15 knots
after midnight, then becoming northwest 10 to 25 knots early in
the morning. chance of showers and thunderstorms through around
midnight, then showers and slight chance of thunderstorms after
midnight. waves around 1 foot building to 2 to 4 feet early in
the morning. 
.sunday...northwest wind up to 30 knots. gusts up to 35 knots.
rain showers likely. waves 4 to 6 feet building to 5 to 7 feet. 
.sunday night...northwest wind up to 30 knots becoming west 15 to
25 knots late in the evening, then becoming 15 to 20 knots after
midnight easing to 10 to 15 knots early in the morning. mostly
clear. waves 4 to 6 feet subsiding to 1 to 2 feet early in the
morning. 

$$

fzus53 kmkx 181611
nshmkx
expires:202510182200;;347759

nearshore marine forecast
national weather service milwaukee/sullivan wi
1111 am cdt sat oct 18 2025

for waters within five nautical miles of shore on lake michigan


lmz646-182200-
wind point wi to winthrop harbor il-
1111 am cdt sat oct 18 2025

...gale warning in effect from sunday morning through sunday
evening...

.rest of today...southwest wind 10 to 15 knots easing to 5 to
10 knots late in the afternoon. slight chance of showers and
thunderstorms late in the afternoon. waves 1 to 2 feet. 
.tonight...southwest wind 5 to 10 knots backing south late in the
evening, then veering southwest after midnight becoming northwest
10 to 25 knots early in the morning. rain showers likely through
around midnight. chance of thunderstorms through the night. rain
showers after midnight. waves around 1 foot building to 2 to
4 feet early in the morning. 
.sunday...northwest wind up to 30 knots. gusts up to 35 knots.
rain showers in the morning, then showers likely in the
afternoon. waves 4 to 6 feet building to 5 to 7 feet in the late
morning and early afternoon, then subsiding to 4 to 6 feet late
in the afternoon. 
.sunday night...northwest wind 15 to 25 knots backing west late
in the evening, then becoming 15 to 20 knots after midnight
easing to 10 to 15 knots early in the morning. mostly clear.
waves 3 to 5 feet subsiding to 1 to 2 feet. 

$$