fzus53 kapx 180733
nshapx
expires:202608181545;;925226

nearshore marine forecast
national weather service gaylord mi
333 am edt tue aug 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.


lmz346-181545-
manistee to point betsie mi-
333 am edt tue aug 18 2026

.today...west wind 10 to 15 knots becoming southwest in the
afternoon. slight chance of showers in the morning. chance of
showers and thunderstorms in the afternoon. waves 2 to 3 feet. 
.tonight...north wind 5 to 10 knots. chance of showers and
thunderstorms. waves 2 to 3 feet. 
.wednesday...light winds. sunny. waves 2 feet or less. 
.wednesday night...light winds. mostly clear. waves 2 feet or
less. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 181128
nshgrb
expires:202608181600;;934451

nearshore marine forecast
national weather service green bay wi
628 am cdt tue aug 18 2026

for waters within five nautical miles of shore on lake michigan


lmz541>543-181600-
rock island passage to sturgeon bay wi-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
628 am cdt tue aug 18 2026

.today...sw wind 10 to 15 kts. waves 2 ft or less. a chance of
showers. a chance of thunderstorms in the afternoon. 
.tonight...n wind 5 to 10 kts. waves 2 ft or less. a chance of
showers and thunderstorms in the evening. 
.wednesday...nw wind 5 to 10 kts backing s early in the
afternoon. waves 2 ft or less. sunny.
.wednesday night...s wind 5 to 10 kts. waves 2 ft or less. mostly
clear.  

$$

fzus53 kgrr 181206
nshgrr
expires:202608182000;;935451

nearshore marine forecast
national weather service grand rapids mi
806 am edt tue aug 18 2026

for waters within five nautical miles of shore on lake michigan


lmz849-182000-
pentwater to manistee mi-
806 am edt tue aug 18 2026

...small craft advisory in effect from 5 pm edt this afternoon
through this evening...

.today...southwest winds 10 to 20 knots. mostly sunny in the
morning, then mostly cloudy with a chance of showers and
thunderstorms in the afternoon. waves 2 to 4 feet. 
.tonight...southwest winds 10 to 20 knots veering northwest in the
late evening and early morning, then veering northeast 5 to 15 knots
after midnight. partly cloudy with a chance of showers and
thunderstorms. waves 2 to 4 feet. 
.wednesday...northeast winds 5 to 15 knots backing northwest in the
late morning and afternoon. sunny. waves 1 to 2 feet. 
.wednesday night...northeast winds 5 to 10 knots veering southeast
in the late evening and overnight. mostly clear. waves 1 foot or
less. 
.thursday...south winds 5 to 15 knots veering southwest in the late
morning and afternoon. sunny. waves 1 foot or less. 
.friday...southwest winds 10 to 20 knots increasing to 20 to
25 knots early in the afternoon. partly sunny with a chance of rain
showers. waves 3 to 5 feet. 
.saturday...northwest winds 10 to 20 knots. mostly sunny. waves 2 to
4 feet. 

$$

fzus53 kgrr 181206
nshgrr
expires:202608182000;;935452

nearshore marine forecast
national weather service grand rapids mi
806 am edt tue aug 18 2026

for waters within five nautical miles of shore on lake michigan


lmz848-182000-
whitehall to pentwater mi-
806 am edt tue aug 18 2026

...small craft advisory in effect from 5 pm edt this afternoon
through this evening...

.today...southwest winds 15 to 20 knots. mostly sunny in the
morning, then mostly cloudy with a chance of showers and
thunderstorms in the afternoon. waves 2 to 4 feet. 
.tonight...southwest winds 15 to 20 knots veering north 10 to
15 knots after midnight. partly cloudy with a chance of showers and
thunderstorms. waves 3 to 5 feet subsiding to 2 to 4 feet after
midnight. 
.wednesday...northeast winds 5 to 15 knots backing north in the late
morning and afternoon. sunny. waves 1 to 3 feet. 
.wednesday night...north winds 5 to 10 knots veering southeast in
the late evening and overnight. mostly clear. waves 1 foot or less. 
.thursday...southeast winds 5 to 10 knots veering southwest 10 to
15 knots in the late morning and afternoon. sunny. waves 1 foot or
less. 
.friday...southwest winds 15 to 25 knots. partly sunny. waves 2 to
4 feet building to 3 to 5 feet in the late morning and afternoon. 
.saturday...northwest winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet. 

$$

fzus53 kgrr 181206
nshgrr
expires:202608182000;;935453

nearshore marine forecast
national weather service grand rapids mi
806 am edt tue aug 18 2026

for waters within five nautical miles of shore on lake michigan


lmz847-182000-
grand haven to whitehall mi-
806 am edt tue aug 18 2026

...small craft advisory in effect from 5 pm edt this afternoon
through this evening...

.today...southwest winds around 20 knots. mostly sunny in the
morning, then mostly cloudy with a chance of showers and
thunderstorms in the afternoon. waves 2 to 4 feet. 
.tonight...southwest winds around 20 knots veering west in the late
evening and early morning, then veering north 10 to 15 knots after
midnight. partly cloudy with a chance of showers and thunderstorms.
waves 3 to 5 feet. 
.wednesday...northeast winds around 10 knots backing northwest in
the late morning and afternoon. sunny. waves 1 to 3 feet. 
.wednesday night...north winds 5 to 15 knots veering east after
midnight. mostly clear. waves around 1 foot. 
.thursday...southeast winds around 10 knots veering west early in
the afternoon. sunny. waves 1 foot or less. 
.friday...southwest winds 15 to 20 knots. mostly sunny. waves 2 to
4 feet. 
.saturday...northwest winds 15 to 20 knots. mostly sunny. waves 3 to
5 feet. 

$$

fzus53 kgrr 181206
nshgrr
expires:202608182000;;935455

nearshore marine forecast
national weather service grand rapids mi
806 am edt tue aug 18 2026

for waters within five nautical miles of shore on lake michigan


lmz845-182000-
south haven to holland mi-
806 am edt tue aug 18 2026

.today...southwest winds 15 to 20 knots. mostly sunny in the morning
then becoming mostly cloudy. a slight chance of through the day.
waves 2 to 4 feet. 
.tonight...southwest winds 15 to 20 knots veering northwest 10 to
15 knots after midnight. rain showers likely and a chance of
thunderstorms. waves 2 to 4 feet. 
.wednesday...north winds around 10 knots backing northwest early in
the afternoon. mostly sunny. waves 2 to 4 feet. 
.wednesday night...north winds 10 to 15 knots veering northeast 5 to
10 knots in the late evening and early morning, then veering east
after midnight. mostly clear. waves around 1 foot. 
.thursday...east winds 5 to 10 knots backing northwest early in the
afternoon. sunny. waves less than 1 foot. 
.friday...southwest winds 10 to 15 knots. mostly sunny. waves 1 to
2 feet. 
.saturday...northwest winds 15 to 20 knots. mostly sunny. waves 3 to
5 feet. 

$$

fzus53 kgrr 181206
nshgrr
expires:202608182000;;935454

nearshore marine forecast
national weather service grand rapids mi
806 am edt tue aug 18 2026

for waters within five nautical miles of shore on lake michigan


lmz846-182000-
holland to grand haven mi-
806 am edt tue aug 18 2026

...small craft advisory in effect from 5 pm edt this afternoon
through this evening...

.today...southwest winds 15 to 20 knots. mostly sunny in the morning
then becoming mostly cloudy. a chance of through the day. waves 2 to
4 feet. 
.tonight...southwest winds around 20 knots veering west in the late
evening and early morning, then veering north 10 to 15 knots after
midnight. rain showers likely and a chance of thunderstorms. waves
2 to 4 feet. 
.wednesday...north winds around 10 knots backing northwest early in
the afternoon. sunny. waves 2 to 4 feet. 
.wednesday night...north winds 10 to 15 knots veering east 5 to
10 knots after midnight. mostly clear. waves around 1 foot. 
.thursday...east winds 5 to 10 knots veering south in the late
morning and early afternoon, then veering west early in the
afternoon. sunny. waves less than 1 foot. 
.friday...southwest winds 10 to 20 knots. mostly sunny. waves 1 to
3 feet. 
.saturday...northwest winds around 20 knots. mostly sunny. waves
3 to 5 feet. 

$$

fzus53 kgrr 181206
nshgrr
expires:202608182000;;935456

nearshore marine forecast
national weather service grand rapids mi
806 am edt tue aug 18 2026

for waters within five nautical miles of shore on lake michigan


lmz844-182000-
st joseph to south haven mi-
806 am edt tue aug 18 2026

.today...southwest winds around 15 knots. sunny in the morning then
becoming partly sunny. a slight chance of through the day. waves
1 to 3 feet. 
.tonight...southwest winds 15 to 20 knots veering northwest after
midnight. rain showers likely and a chance of thunderstorms. waves
2 to 4 feet. 
.wednesday...north winds 10 to 15 knots. mostly sunny. waves 1 to
3 feet. 
.wednesday night...north winds 5 to 15 knots veering east around
5 knots after midnight. mostly clear. waves around 1 foot. 
.thursday...northeast winds around 5 knots backing north early in
the afternoon. sunny. waves less than 1 foot. 
.friday...southwest winds around 10 knots. mostly sunny. waves
1 foot or less. 
.saturday...west winds 15 to 20 knots veering northwest early in the
afternoon. mostly sunny with a chance of rain showers. waves 2 to
4 feet. 

$$

fzus53 kiwx 180732
nshiwx
expires:202608181415;;925186

nearshore marine forecast
national weather service northern indiana
332 am edt tue aug 18 2026

for waters within five nautical miles of shore on lake michigan


lmz043-181415-
new buffalo mi to st joseph mi-
332 am edt tue aug 18 2026

.today...southwest winds 5 to 10 knots. sunny this morning, then
becoming partly sunny. waves 1 to 2 feet. 
.tonight...southwest winds 10 to 15 knots becoming northwest.
showers likely with a chance of thunderstorms. waves 1 to 2 feet.
.wednesday...north winds 5 to 10 knots. a slight chance of
showers in the morning. waves 1 to 2 feet. 
.wednesday night...north winds 5 to 10 knots becoming light and
variable. partly cloudy. waves around 1 foot. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 70 degrees and at michigan
city is 62 degrees.


$$

fzus53 kiwx 180732
nshiwx
expires:202608181415;;925185

nearshore marine forecast
national weather service northern indiana
332 am edt tue aug 18 2026

for waters within five nautical miles of shore on lake michigan


lmz046-181415-
michigan city in to new buffalo mi-
332 am edt tue aug 18 2026

.today...southwest winds 5 to 10 knots. mostly sunny. waves
around 1 foot. 
.tonight...southwest winds 10 to 15 knots becoming northwest.
showers likely with a chance of thunderstorms. waves 1 to 2 feet.
.wednesday...north winds 5 to 10 knots. a slight chance of
showers in the morning. waves 1 to 2 feet. 
.wednesday night...north winds 10 knots or less becoming east.
partly cloudy. waves around 1 foot. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 70 degrees and at michigan
city is 62 degrees.


$$

fzus53 klot 180906
nshlot
expires:202608181515;;928695

nearshore marine forecast
national weather service chicago/romeoville il
406 am cdt tue aug 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>745-181515-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
406 am cdt tue aug 18 2026

.today...southwest winds 10 to 15 kt increasing to 15 to 20 kt.
chance of showers and slight chance of thunderstorms in the
afternoon. waves 1 to 2 ft. 
.tonight...southwest winds 10 to 15 kt becoming west overnight.
showers likely and a chance of thunderstorms. waves 1 to 2 ft.
.wednesday...north winds around 10 kt. mostly cloudy in the
morning, then becoming partly cloudy. waves 1 to 2 ft. 
.wednesday night...northeast winds around 10 kt becoming east.
mostly clear in the evening, then becoming partly cloudy. waves
1 to 2 ft.  

$$

fzus53 klot 180906
nshlot
expires:202608181515;;928694

nearshore marine forecast
national weather service chicago/romeoville il
406 am cdt tue aug 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>742-181515-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
406 am cdt tue aug 18 2026

.today...southwest winds 10 to 15 kt increasing to 15 to 20 kt.
chance of showers in the morning. chance of showers and 
thunderstorms in the afternoon. waves 1 to 2 ft. 
.tonight...southwest winds 10 to 15 kt becoming west overnight.
showers likely and a chance of thunderstorms. waves 1 to 2 ft.
.wednesday...north winds around 10 kt becoming northeast in the
afternoon. partly cloudy in the morning then clearing. waves 1 to
2 ft. 
.wednesday night...east winds around 10 kt becoming around 5 kt.
mostly clear in the evening, then becoming partly cloudy. waves
1 to 2 ft.

$$

fzus53 kmkx 181210
nshmkx
expires:202608181600;;935837

nearshore marine forecast
national weather service milwaukee/sullivan wi
710 am cdt tue aug 18 2026

for waters within five nautical miles of shore on lake michigan


lmz646-181600-
wind point wi to winthrop harbor il-
710 am cdt tue aug 18 2026

.today...west wind 10 to 15 knots backing southwest with gusts to
around 20 knots in the afternoon. slight chance of showers and
thunderstorms early in the afternoon. chance of showers and
thunderstorms late in the afternoon. waves around 1 foot. 
.tonight...southwest wind 10 to 15 knots veering west late in the
evening, then becoming west 10 to 15 knots after midnight
becoming northwest 5 to 10 knots early in the morning. chance of
showers through around midnight. chance of thunderstorms through
the night. slight chance of showers after midnight. waves around
1 foot. 
.wednesday...north wind 5 to 10 knots veering northeast late in
the afternoon. sunny. waves around 1 foot. 
.wednesday night...east wind 5 to 10 knots veering southeast late
in the evening, then veering south after midnight veering west
early in the morning. partly cloudy. waves around 1 foot. 

$$

fzus53 kmkx 181210
nshmkx
expires:202608181600;;935836

nearshore marine forecast
national weather service milwaukee/sullivan wi
710 am cdt tue aug 18 2026

for waters within five nautical miles of shore on lake michigan


lmz645-181600-
north point light to wind point wi-
710 am cdt tue aug 18 2026

.today...west wind 10 to 15 knots backing southwest with gusts to
around 20 knots in the afternoon. slight chance of showers and
thunderstorms early in the afternoon. chance of showers and
thunderstorms late in the afternoon. waves around 1 foot. 
.tonight...southwest wind 10 to 15 knots veering north early in
the morning. chance of showers and thunderstorms through around
midnight, then slight chance of showers and thunderstorms after
midnight. waves around 1 foot. 
.wednesday...north wind 5 to 10 knots veering east late in the
afternoon. sunny. waves 1 to 2 feet. 
.wednesday night...southeast wind 5 to 10 knots veering west
early in the morning. mostly clear. waves around 1 foot. 

$$

fzus53 kmkx 181210
nshmkx
expires:202608181600;;935835

nearshore marine forecast
national weather service milwaukee/sullivan wi
710 am cdt tue aug 18 2026

for waters within five nautical miles of shore on lake michigan


lmz644-181600-
port washington to north point light wi-
710 am cdt tue aug 18 2026

.today...west wind 10 to 15 knots backing southwest in the
afternoon. slight chance of showers and thunderstorms early in
the afternoon. chance of showers and thunderstorms late in the
afternoon. waves around 1 foot. 
.tonight...southwest wind 10 to 15 knots veering west late in the
evening, then veering northwest after midnight becoming north
5 to 10 knots early in the morning. chance of showers and
thunderstorms through around midnight. waves around 1 foot. 
.wednesday...north wind 5 to 10 knots veering east late in the
afternoon. sunny. waves around 1 foot. 
.wednesday night...southeast wind 5 to 10 knots veering west
early in the morning. mostly clear. waves around 1 foot. 

$$

fzus53 kmkx 181210
nshmkx
expires:202608181600;;935834

nearshore marine forecast
national weather service milwaukee/sullivan wi
710 am cdt tue aug 18 2026

for waters within five nautical miles of shore on lake michigan


lmz643-181600-
sheboygan to port washington wi-
710 am cdt tue aug 18 2026

.today...west wind 10 to 15 knots backing southwest with gusts to
around 20 knots late in the morning, then becoming southwest
10 to 15 knots with gusts to around 20 knots in the afternoon.
slight chance of showers and thunderstorms early in the
afternoon. chance of showers and thunderstorms late in the
afternoon. waves 1 to 2 feet. 
.tonight...southwest wind 10 to 15 knots veering north early in
the morning. chance of showers and thunderstorms through around
midnight. waves 1 to 2 feet. 
.wednesday...northwest wind 5 to 10 knots veering southeast late
in the afternoon. sunny. waves around 1 foot. 
.wednesday night...south wind 5 to 10 knots veering west early in
the morning. mostly clear. waves around 1 foot. 

$$