fzus53 kgrb 190136
nshgrb
expires:202512190500;;831189

nearshore marine forecast
national weather service green bay wi
736 pm cst thu dec 18 2025

for waters within five nautical miles of shore on lake michigan


lmz542-543-190500-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
736 pm cst thu dec 18 2025

...gale warning in effect through friday morning...

.tonight...w wind to 30 kts veering nw after midnight. gusts to
40 kts. waves 5 to 8 ft. a slight chance of light rain and light
freezing rain in the evening. light snow likely. 
.friday...nw wind to 30 kts with gale force gusts to around
40 kts decreasing to 10 to 15 kts early in the afternoon. waves
3 to 5 ft. a slight chance of light snow in the morning. 
.friday night...sw wind 10 to 20 kts becoming s to 30 kts after
midnight. waves 2 to 4 ft building to 6 to 10 ft after midnight.
a chance of light snow after midnight. 
.saturday...sw wind 15 to 25 kts veering w in the late morning
and afternoon. waves 6 to 10 ft subsiding to 4 to 7 ft in the
afternoon. a chance of light snow in the morning.  

$$

fzus53 kgrr 182023
nshgrr
expires:202512190900;;817157

nearshore marine forecast
national weather service grand rapids mi
323 pm est thu dec 18 2025

for waters within five nautical miles of shore on lake michigan


lmz846-190900-
holland to grand haven mi-
323 pm est thu dec 18 2025

...gale warning in effect through friday morning...

.through early evening...southwest gales to 35 knots. rain showers.
patchy fog. waves 6 to 9 feet. 
.tonight...west gales to 45 knots. rain showers and a chance of snow
showers in the evening, then snow showers after midnight. patchy fog
after midnight. waves 7 to 11 feet building to 8 to 12 feet after
midnight. 
.friday...northwest gales to 45 knots. snow showers. patchy fog.
waves 10 to 14 feet. 
.friday night...west winds 20 to 25 knots backing south to 30 knots
in the late evening and early morning, then increasing to gales to
35 knots after midnight. mostly cloudy. waves 6 to 8 feet. 
.saturday...south gales to 35 knots veering west early in the
afternoon. mostly cloudy with a chance of rain and snow showers.
waves 7 to 10 feet. 
.saturday night...west gales to 45 knots. partly cloudy. waves 9 to
13 feet. 
.sunday...northwest gales to 35 knots decreasing to 30 knots in the
late morning and afternoon. partly sunny. waves 8 to 12 feet
subsiding to 5 to 7 feet early in the afternoon. 
.monday...south winds 15 to 25 knots. mostly cloudy. waves 3 to
5 feet. 
.tuesday...southwest winds 20 to 25 knots veering west early in the
afternoon. partly sunny. waves 5 to 7 feet. 

$$

fzus53 kgrr 182023
nshgrr
expires:202512190900;;817156

nearshore marine forecast
national weather service grand rapids mi
323 pm est thu dec 18 2025

for waters within five nautical miles of shore on lake michigan


lmz847-190900-
grand haven to whitehall mi-
323 pm est thu dec 18 2025

...gale warning in effect through friday morning...

.through early evening...southwest gales to 35 knots. rain showers
likely. patchy fog. waves 7 to 11 feet. 
.tonight...west gales to 45 knots. snow showers likely and a chance
of rain showers in the evening, then snow showers after midnight.
patchy fog after midnight. waves 8 to 12 feet. 
.friday...northwest gales to 45 knots. snow showers. waves 9 to
13 feet. 
.friday night...west winds around 20 knots backing south to 30 knots
in the late evening and early morning, then increasing to gales to
35 knots after midnight. mostly cloudy. waves 5 to 7 feet building
to 6 to 9 feet after midnight. 
.saturday...south gales to 35 knots veering west early in the
afternoon. mostly cloudy with a chance of rain and snow showers.
waves 7 to 11 feet. 
.saturday night...west gales to 45 knots. partly cloudy. waves 9 to
13 feet. 
.sunday...northwest gales to 35 knots decreasing to 15 to 25 knots.
partly sunny. waves 7 to 11 feet subsiding to 5 to 7 feet early in
the afternoon. 
.monday...south winds 20 to 25 knots. mostly cloudy. waves 4 to
6 feet. 
.tuesday...west winds 20 to 25 knots decreasing to 15 to 20 knots
early in the afternoon. partly sunny. waves 5 to 7 feet. 

$$

fzus53 kgrr 182023
nshgrr
expires:202512190900;;817155

nearshore marine forecast
national weather service grand rapids mi
323 pm est thu dec 18 2025

for waters within five nautical miles of shore on lake michigan


lmz848-190900-
whitehall to pentwater mi-
323 pm est thu dec 18 2025

...gale warning in effect through friday morning...

.through early evening...southwest gales to 35 knots. rain showers
likely. patchy fog. waves 8 to 12 feet. 
.tonight...west gales to 40 knots. snow showers likely and a chance
of rain showers in the evening, then snow showers after midnight.
patchy fog after midnight. waves 7 to 11 feet. 
.friday...northwest gales to 45 knots. snow showers and a chance of
light freezing rain. waves 9 to 13 feet. 
.friday night...west winds 15 to 20 knots backing south to 30 knots
in the late evening and early morning, then increasing to gales to
35 knots after midnight. mostly cloudy. waves 4 to 6 feet building
to 7 to 10 feet after midnight. 
.saturday...south gales to 35 knots veering southwest to 30 knots in
the late morning and early afternoon, then veering west gales to
35 knots early in the afternoon. mostly cloudy with a chance of rain
and snow showers. waves 8 to 12 feet. 
.saturday night...west gales to 45 knots. partly cloudy. waves 8 to
12 feet. 
.sunday...northwest gales to 35 knots decreasing to 15 to 25 knots.
partly sunny. waves 7 to 11 feet subsiding to 4 to 6 feet early in
the afternoon. 
.monday...south winds 15 to 25 knots. mostly cloudy. waves 4 to
6 feet building to 5 to 7 feet early in the afternoon. 
.tuesday...west winds 20 to 25 knots veering northwest 15 to
20 knots early in the afternoon. partly sunny. waves 5 to 7 feet. 

$$

fzus53 kgrr 182023
nshgrr
expires:202512190900;;817158

nearshore marine forecast
national weather service grand rapids mi
323 pm est thu dec 18 2025

for waters within five nautical miles of shore on lake michigan


lmz845-190900-
south haven to holland mi-
323 pm est thu dec 18 2025

...gale warning in effect through friday morning...

.through early evening...southwest gales to 35 knots. rain showers.
patchy fog. waves 5 to 7 feet. 
.tonight...west gales to 45 knots. rain showers and a chance of snow
showers in the evening, then snow showers after midnight. patchy fog
after midnight. waves 7 to 11 feet building to 8 to 12 feet after
midnight. 
.friday...northwest gales to 45 knots. snow showers. patchy fog.
waves 10 to 14 feet. 
.friday night...southwest winds 15 to 25 knots backing south to
30 knots in the late evening and overnight. mostly cloudy. waves
6 to 8 feet subsiding to 4 to 6 feet in the late evening and
overnight. 
.saturday...south gales to 35 knots veering southwest to 30 knots in
the late morning and early afternoon, then veering west early in the
afternoon. mostly cloudy with a chance of rain showers and a slight
chance of snow showers. waves 6 to 8 feet. 
.saturday night...west gales to 40 knots. partly cloudy. waves 9 to
13 feet. 
.sunday...northwest gales to 35 knots decreasing to 30 knots in the
late morning and afternoon. partly sunny. waves 8 to 12 feet
subsiding to 5 to 7 feet early in the afternoon. 
.monday...south winds 15 to 20 knots. mostly cloudy. waves 2 to
3 feet. 
.tuesday...west winds 15 to 25 knots. partly sunny. waves 4 to
6 feet. 

$$

fzus53 kgrr 182023
nshgrr
expires:202512190900;;817159

nearshore marine forecast
national weather service grand rapids mi
323 pm est thu dec 18 2025

for waters within five nautical miles of shore on lake michigan


lmz844-190900-
st joseph to south haven mi-
323 pm est thu dec 18 2025

...gale warning in effect through friday morning...

.through early evening...southwest winds to 30 knots. rain showers.
waves 4 to 6 feet. 
.tonight...west gales to 45 knots. a chance of rain and snow showers
likely in the evening, then snow showers after midnight. waves 5 to
7 feet building to 8 to 12 feet in the late evening and overnight. 
.friday...northwest gales to 45 knots. snow showers. waves 9 to
13 feet. 
.friday night...southwest winds 15 to 20 knots backing south to
30 knots in the late evening and overnight. mostly cloudy. waves
6 to 8 feet subsiding to 3 to 5 feet in the late evening and
overnight. 
.saturday...south winds to 30 knots veering west early in the
afternoon. mostly cloudy. waves 4 to 6 feet. 
.saturday night...west gales to 40 knots. partly cloudy. waves 7 to
11 feet. 
.sunday...northwest gales to 35 knots decreasing to 15 to 25 knots.
partly sunny. waves 7 to 11 feet. 
.monday...south winds 15 to 20 knots. mostly cloudy. waves 1 to
3 feet. 
.tuesday...west winds 15 to 25 knots. partly sunny. waves 3 to
5 feet. 

$$

fzus53 kgrr 182023
nshgrr
expires:202512190900;;817154

nearshore marine forecast
national weather service grand rapids mi
323 pm est thu dec 18 2025

for waters within five nautical miles of shore on lake michigan


lmz849-190900-
pentwater to manistee mi-
323 pm est thu dec 18 2025

...gale warning in effect through friday morning...

.through early evening...southwest gales to 35 knots. rain showers
likely. patchy fog. waves 7 to 10 feet. 
.tonight...west gales to 40 knots. snow showers likely and a chance
of rain showers in the evening, then snow showers after midnight.
patchy fog after midnight. waves 7 to 10 feet. 
.friday...northwest gales to 40 knots. snow showers and a chance of
light freezing rain. waves 7 to 11 feet. 
.friday night...west winds 10 to 20 knots backing south 15 to
25 knots in the late evening and early morning, then increasing to
gales to 35 knots after midnight. cloudy. waves 4 to 6 feet building
to 6 to 9 feet after midnight. 
.saturday...south gales to 35 knots veering southwest to 30 knots in
the late morning and early afternoon, then veering west gales to
35 knots early in the afternoon. mostly cloudy with a chance of rain
and snow showers. waves 7 to 10 feet. 
.saturday night...west gales to 45 knots. partly cloudy. waves 8 to
12 feet. 
.sunday...northwest gales to 35 knots decreasing to 10 to 20 knots.
mostly cloudy. waves 7 to 10 feet subsiding to 3 to 5 feet early in
the afternoon. 
.monday...south winds 15 to 25 knots. mostly cloudy. waves 4 to
6 feet. 
.tuesday...west winds 15 to 25 knots veering northwest 10 to
20 knots early in the afternoon. partly sunny. waves 4 to 6 feet. 

$$

fzus53 kiwx 190327
nshiwx
expires:202512190915;;835369

nearshore marine forecast
national weather service northern indiana
1027 pm est thu dec 18 2025

for waters within five nautical miles of shore on lake michigan


lmz043-190915-
new buffalo mi to st joseph mi-
1027 pm est thu dec 18 2025

...gale warning in effect through friday afternoon...

.overnight...west winds to 30 knots. gusts up to 40 knot
gales. a chance of snow, then a chance of snow showers late.
waves 5 to 8 feet building to 7 to 11 feet. 
.friday...west winds to 30 knots diminishing to 15 to 20 knots.
gusts up to 35 knot gales. a chance of snow showers in the
morning, then a slight chance of snow showers in the afternoon.
waves 9 to 12 feet subsiding to 7 to 10 feet. 
.friday night...southwest winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. gusts up to 30 knots. mostly
cloudy. waves 4 to 7 feet subsiding to 3 to 5 feet. 
.saturday...south winds to 30 knots becoming west and diminishing
to 15 to 20 knots. mostly cloudy. waves 3 to 5 feet. 

the water temperature at st. joseph is 36 degrees and at michigan
city is 35 degrees.

$$

fzus53 kiwx 190327
nshiwx
expires:202512190915;;835368

nearshore marine forecast
national weather service northern indiana
1027 pm est thu dec 18 2025

for waters within five nautical miles of shore on lake michigan


lmz046-190915-
michigan city in to new buffalo mi-
1027 pm est thu dec 18 2025

...gale warning in effect through friday afternoon...

.overnight...west winds to 30 knots. gusts up to 35 knot
gales. a chance of snow, then a chance of snow showers late.
waves 5 to 9 feet. 
.friday...west winds to 30 knots diminishing to 15 to 20 knots.
gusts up to 35 knot gales. a chance of snow showers in the
morning. waves 7 to 10 feet subsiding to 5 to 8 feet. 
.friday night...southwest winds 10 to 15 knots becoming south and
increasing to 15 to 25 knots. gusts up to 30 knots. mostly
cloudy. waves 3 to 5 feet subsiding to 2 to 4 feet. 
.saturday...south winds to 30 knots becoming west 15 to 25 knots.
mostly cloudy. waves 3 to 5 feet subsiding to 2 to 4 feet. 

the water temperature at st. joseph is 36 degrees and at michigan
city is 35 degrees.

$$

fzus53 klot 182138
nshlot
expires:202512190430;;821408

nearshore marine forecast
national weather service chicago/romeoville il
338 pm cst thu dec 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.


lmz744-745-190430-
gary to burns harbor in-burns harbor to michigan city in-
338 pm cst thu dec 18 2025

...gale warning in effect through friday morning...

.tonight...southwest winds to 30 kt early becoming west gales to 
40 kt. scattered snow showers. freezing spray after midnight. 
waves 3 to 6 ft occasionally to 8 ft building to 7 to 10 ft 
occasionally to 13 ft.
.friday...west gales to 35 kt diminishing to 15 to 20 kt late.
freezing spray in the morning. chance of snow showers in the
morning. waves 7 to 10 ft occasionally to 13 ft subsiding to 3 to
6 ft occasionally to 8 ft late. 
.friday night...southwest winds 10 to 20 kt becoming south and 
increasing to 30 kt. partly cloudy in the evening, then becoming 
mostly cloudy. waves 3 to 5 ft. 
.saturday...south winds to 30 kt becoming west 15 to 25 kt in the
afternoon. mostly cloudy. waves 3 to 5 ft.

$$

fzus53 klot 182138
nshlot
expires:202512190430;;821407

nearshore marine forecast
national weather service chicago/romeoville il
338 pm cst thu dec 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>743-190430-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
calumet harbor il to gary in-
338 pm cst thu dec 18 2025

...gale warning in effect through friday morning...

.tonight...west winds to 30 kt early increasing to gales to 40 kt.
scattered snow showers. waves 2 to 4 ft building to 4 to 6 ft 
occasionally to 8 ft. 
.friday...northwest gales to 35 kt becoming west 15 to 25 kt in
the early afternoon and then southwest 10 to 15 kt late. mostly 
cloudy in the morning then clearing. waves 4 to 6 ft occasionally
to 8 ft subsiding to 1 to 3 ft late. 
.friday night...southwest winds 10 to 20 kt becoming south and 
increasing to 30 kt. mostly cloudy. waves 1 to 3 ft building to 3
to 6 ft occasionally to 8 ft. 
.saturday...south winds to 30 kt becoming west and diminishing to
15 to 20 kt in the afternoon. mostly cloudy. waves 3 to 6 ft 
occasionally to 8 ft subsiding to 1 to 3 ft. 

$$

fzus53 kmkx 190310
nshmkx
expires:202512191100;;834939

nearshore marine forecast
national weather service milwaukee/sullivan wi
910 pm cst thu dec 18 2025

for waters within five nautical miles of shore on lake michigan


lmz643-191100-
sheboygan to port washington wi-
910 pm cst thu dec 18 2025

...gale warning in effect until 9 am cst friday...

.rest of tonight...west wind up to 30 knots becoming northwest
gales to 35 knots early in the morning. snow likely. waves 4 to
6 feet. 
.friday...northwest gales to 35 knots easing to up to 30 knots
late in the morning, then easing to 15 to 25 knots early in the
afternoon becoming west 10 to 20 knots late in the afternoon.
slight chance of snow in the morning. waves 4 to 6 feet subsiding
to 1 to 2 feet late in the afternoon. 
.friday night...southwest wind 10 to 15 knots becoming south
15 to 25 knots late in the evening, then rising to up to 30 knots
after midnight. mostly cloudy. waves around 1 foot building to
7 to 9 feet. 
.saturday...south wind 15 to 25 knots veering southwest 15 to
20 knots late in the morning, then veering west early in the
afternoon rising to up to 30 knots late in the afternoon. slight
chance of snow in the morning. waves 7 to 9 feet subsiding to
3 to 4 feet. 

wave heights are for ice free areas.

$$

fzus53 kmkx 190310
nshmkx
expires:202512191100;;834940

nearshore marine forecast
national weather service milwaukee/sullivan wi
910 pm cst thu dec 18 2025

for waters within five nautical miles of shore on lake michigan


lmz644-191100-
port washington to north point light wi-
910 pm cst thu dec 18 2025

...gale warning in effect until 9 am cst friday...

.rest of tonight...west wind up to 30 knots. gusts up to
35 knots. snow likely in the late evening and early morning, then
chance of snow early in the morning. waves 3 to 4 feet building
to 3 to 5 feet after midnight. 
.friday...northwest gales to 35 knots easing to up to 30 knots
late in the morning, then easing to 15 to 25 knots early in the
afternoon becoming west 10 to 20 knots late in the afternoon.
slight chance of snow in the morning. waves 3 to 5 feet subsiding
to 1 to 2 feet late in the afternoon. 
.friday night...southwest wind 10 to 15 knots becoming south
15 to 20 knots late in the evening, then becoming 15 to 25 knots
after midnight. mostly cloudy. waves around 1 foot building to
5 to 7 feet. 
.saturday...south wind 15 to 25 knots veering southwest 15 to
20 knots late in the morning, then veering west with gusts to
around 25 knots early in the afternoon rising to up to 30 knots
late in the afternoon. slight chance of snow in the morning.
waves 5 to 7 feet subsiding to 3 to 4 feet. 

wave heights are for ice free areas.

$$

fzus53 kmkx 190310
nshmkx
expires:202512191100;;834941

nearshore marine forecast
national weather service milwaukee/sullivan wi
910 pm cst thu dec 18 2025

for waters within five nautical miles of shore on lake michigan


lmz645-191100-
north point light to wind point wi-
910 pm cst thu dec 18 2025

...gale warning in effect until 9 am cst friday...

.rest of tonight...west wind up to 30 knots. gusts up to
35 knots. chance of snow. waves 3 to 4 feet building to 3 to
5 feet after midnight. 
.friday...northwest wind up to 30 knots with gusts to around
35 knots becoming west 15 to 25 knots early in the afternoon,
then easing to 10 to 20 knots late in the afternoon. slight
chance of snow in the morning. waves 4 to 6 feet subsiding to
1 to 2 feet late in the afternoon. 
.friday night...southwest wind 10 to 15 knots becoming south
15 to 25 knots in the late evening and overnight. mostly cloudy.
waves around 1 foot building to 5 to 7 feet. 
.saturday...south wind 15 to 25 knots veering southwest late in
the morning, then veering west 15 to 20 knots early in the
afternoon becoming 15 to 25 knots late in the afternoon. slight
chance of snow through the day. slight chance of rain in the
afternoon. waves 4 to 6 feet subsiding to 3 to 5 feet in the late
morning and afternoon. 

wave heights are for ice free areas.

$$

fzus53 kmkx 190310
nshmkx
expires:202512191100;;834942

nearshore marine forecast
national weather service milwaukee/sullivan wi
910 pm cst thu dec 18 2025

for waters within five nautical miles of shore on lake michigan


lmz646-191100-
wind point wi to winthrop harbor il-
910 pm cst thu dec 18 2025

...gale warning in effect until 9 am cst friday...

.rest of tonight...west wind up to 30 knots. gusts up to
35 knots. chance of snow late in the evening. slight chance of
snow after midnight. waves 3 to 4 feet building to 3 to 5 feet
early in the morning. 
.friday...northwest wind up to 30 knots with gusts to around
35 knots becoming west 15 to 25 knots early in the afternoon,
then easing to 10 to 20 knots late in the afternoon. partly sunny
in the morning then clearing. waves 3 to 5 feet subsiding to 1 to
2 feet. 
.friday night...southwest wind 10 to 15 knots becoming south
15 to 25 knots in the late evening and overnight. mostly cloudy.
waves around 1 foot building to 4 to 6 feet. 
.saturday...south wind 15 to 25 knots veering southwest 15 to
20 knots late in the morning, then veering west early in the
afternoon becoming 15 to 25 knots late in the afternoon. slight
chance of snow through the day. slight chance of rain in the
afternoon. waves 4 to 6 feet subsiding to 3 to 5 feet in the late
morning and afternoon. 

wave heights are for ice free areas.

$$