fzus53 kapx 181446
nshapx
expires:202605182300;;770407

nearshore marine forecast
national weather service gaylord mi
1046 am edt mon may 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.


lmz346-182300-
manistee to point betsie mi-
1046 am edt mon may 18 2026

...small craft advisory in effect until 8 pm edt this evening...

.today...southwest wind 15 to 20 knots becoming south 5 to
15 knots early in the evening. gusts to 25 knots. chance of 
showers and slight chance of thunderstorms. waves 2 to 4 feet. 
.tonight...south wind 10 to 20 knots. rain showers likely and a
chance of thunderstorms. waves 4 to 6 feet. 
.tuesday...southwest wind 15 to 25 knots. rain showers likely.
waves 5 to 8 feet. 
.tuesday night...north wind 10 to 15 knots. mostly cloudy. 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 181336
nshgrb
expires:202605181600;;768191

nearshore marine forecast
national weather service green bay wi
836 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz543-181600-
two rivers to sheboygan wi-
836 am cdt mon may 18 2026

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

.today...s wind 15 to 25 kts. waves 3 to 5 ft. patchy fog. a
chance of showers and thunderstorms. 
.tonight...s wind 10 to 15 kts increasing to 15 to 25 kts in the
late evening and overnight. waves 4 to 7 ft. patchy fog. a chance
of showers and thunderstorms. 
.tuesday...sw wind 15 to 25 kts veering w in the late morning and
afternoon. waves 5 to 8 ft. patchy fog in the morning. a chance
of showers in the morning. 
.tuesday night...nw wind 10 to 15 kts. waves 2 to 4 ft. partly
cloudy.  

$$

fzus53 kgrb 181336
nshgrb
expires:202605181600;;768192

nearshore marine forecast
national weather service green bay wi
836 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz542-181600-
sturgeon bay to two rivers wi-
836 am cdt mon may 18 2026

...dense fog advisory in effect until 9 am cdt this morning...
...small craft advisory in effect through late tuesday night...

.today...s wind 15 to 25 kts decreasing to 10 to 15 kts early in
the afternoon. waves 3 to 5 ft. patchy dense fog. a chance of
showers and a slight chance of thunderstorms. 
.tonight...s wind 15 to 25 kts. waves 4 to 7 ft. patchy fog. a
chance of showers and thunderstorms. 
.tuesday...s wind 15 to 25 kts veering w in the late morning and
afternoon. waves 5 to 8 ft subsiding to 4 to 7 ft in the
afternoon. patchy fog in the morning. a chance of showers in the
morning. 
.tuesday night...nw wind 10 to 15 kts. waves 2 to 4 ft subsiding
to 1 to 3 ft after midnight. mostly cloudy in the evening then
becoming partly cloudy.  

$$

fzus53 kgrr 181413
nshgrr
expires:202605182100;;769817

nearshore marine forecast
national weather service grand rapids mi
1013 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz844-182100-
st joseph to south haven mi-
1013 am edt mon may 18 2026

...small craft advisory in effect from late tonight through tuesday
evening...

.rest of today...south winds around 20 knots. a slight chance of
showers and thunderstorms late in the morning, then rain showers
likely and a chance of thunderstorms in the afternoon. waves 2 to
3 feet. 
.tonight...south winds 15 to 25 knots. mostly cloudy with a chance
of showers and thunderstorms. waves 2 to 4 feet.
.tuesday...southwest winds 20 to 25 knots. partly sunny with a
chance of showers and thunderstorms. waves 3 to 5 feet. 
.tuesday night...northwest winds 15 to 20 knots becoming around
20 knots after midnight. mostly cloudy with a slight chance of
showers and thunderstorms. waves 3 to 5 feet. 
.wednesday...north winds 15 to 20 knots. mostly sunny. waves 3 to
5 feet. 
.thursday...northeast winds 10 to 15 knots. mostly sunny. waves 1 to
2 feet. 
.friday...east winds 10 to 15 knots. mostly cloudy with a chance of
rain showers. waves around 1 foot. 

$$

fzus53 kgrr 181413
nshgrr
expires:202605182100;;769816

nearshore marine forecast
national weather service grand rapids mi
1013 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz845-182100-
south haven to holland mi-
1013 am edt mon may 18 2026

...small craft advisory in effect from late tonight through tuesday
evening...

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

$$

fzus53 kgrr 181413
nshgrr
expires:202605182100;;769815

nearshore marine forecast
national weather service grand rapids mi
1013 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz846-182100-
holland to grand haven mi-
1013 am edt mon may 18 2026

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

.rest of today...south winds to 30 knots. mostly cloudy with a
chance of showers and thunderstorms. waves 3 to 5 feet. 
.tonight...south winds to 30 knots. mostly cloudy with a chance of
showers and thunderstorms. waves 4 to 6 feet. 
.tuesday...south winds to 30 knots veering southwest 20 to 25 knots
early in the afternoon. rain showers likely and a chance of
thunderstorms. patchy fog. waves 6 to 8 feet. 
.tuesday night...northwest winds around 20 knots. partly cloudy.
waves 3 to 5 feet. 
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 3 to
5 feet. 
.thursday...northeast winds 10 to 15 knots. mostly sunny. waves
around 1 foot. 
.friday...east winds 15 to 20 knots. mostly cloudy. waves around
1 foot. 

$$

fzus53 kgrr 181413
nshgrr
expires:202605182100;;769814

nearshore marine forecast
national weather service grand rapids mi
1013 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz847-182100-
grand haven to whitehall mi-
1013 am edt mon may 18 2026

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

.rest of today...south winds to 30 knots. a chance of showers and
thunderstorms late in the morning, then rain showers likely and a
chance of thunderstorms in the afternoon. waves 4 to 6 feet. 
.tonight...south winds to 30 knots. mostly cloudy with a chance of
showers and thunderstorms. waves 5 to 7 feet. 
.tuesday...south winds to 30 knots veering southwest early in the
afternoon. rain showers likely and a chance of thunderstorms. patchy
fog. waves 6 to 8 feet. 
.tuesday night...northwest winds 20 to 25 knots veering north after
midnight. partly cloudy. waves 4 to 6 feet. 
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 2 to
4 feet. 
.thursday...east winds 10 to 15 knots backing north early in the
afternoon. mostly sunny. waves 1 foot or less. 
.friday...east winds 10 to 20 knots. mostly cloudy. waves around
1 foot. 

$$

fzus53 kgrr 181413
nshgrr
expires:202605182100;;769813

nearshore marine forecast
national weather service grand rapids mi
1013 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz848-182100-
whitehall to pentwater mi-
1013 am edt mon may 18 2026

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

.rest of today...south winds to 30 knots. mostly cloudy with a
chance of showers and thunderstorms. waves 4 to 6 feet. 
.tonight...south winds to 30 knots. mostly cloudy with a chance of
showers and thunderstorms. patchy fog. waves 5 to 7 feet. 
.tuesday...south winds to 30 knots veering southwest early in the
afternoon. rain showers likely and a chance of thunderstorms. patchy
fog. waves 6 to 9 feet. 
.tuesday night...northwest winds 20 to 25 knots veering north 15 to
20 knots after midnight. partly cloudy. waves 5 to 7 feet. 
.wednesday...north winds 15 to 25 knots. mostly sunny. waves 2 to
4 feet. 
.thursday...northeast winds 10 to 15 knots backing north early in
the afternoon. mostly sunny. waves around 1 foot. 
.friday...east winds 10 to 15 knots. mostly cloudy. waves around
1 foot. 

$$

fzus53 kgrr 181413
nshgrr
expires:202605182100;;769812

nearshore marine forecast
national weather service grand rapids mi
1013 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz849-182100-
pentwater to manistee mi-
1013 am edt mon may 18 2026

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

.rest of today...south winds to 30 knots. mostly cloudy with a
chance of showers and thunderstorms. waves 3 to 5 feet. 
.tonight...south winds to 30 knots. rain showers likely and a chance
of thunderstorms. patchy fog. waves 5 to 7 feet. 
.tuesday...south winds to 30 knots veering southwest early in the
afternoon. rain showers likely and a chance of thunderstorms. patchy
fog. waves 6 to 8 feet. 
.tuesday night...northwest winds 15 to 25 knots veering north after
midnight. partly cloudy. waves 5 to 7 feet. 
.wednesday...north winds 15 to 20 knots. mostly sunny. waves 2 to
3 feet. 
.thursday...northeast winds 5 to 10 knots backing north 10 to
15 knots early in the afternoon. mostly sunny. waves around 1 foot. 
.friday...east winds 10 to 15 knots. mostly cloudy. waves 1 foot or
less. 

$$

fzus53 kiwx 181440
nshiwx
expires:202605182015;;770252

nearshore marine forecast
national weather service northern indiana
1040 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz043-182015-
new buffalo mi to st joseph mi-
1040 am edt mon may 18 2026

.rest of today...south winds 10 to 15 knots. gusts up to
25 knots. showers likely with a chance of thunderstorms early 
this afternoon. a chance of showers and thunderstorms late. waves 
1 to 3 feet. 
.tonight...south winds 10 to 15 knots increasing to 15 to
20 knots. gusts up to 25 knots. a slight chance of showers and
thunderstorms in the evening. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest. gusts
up to 30 knots. a chance of showers in the morning, then showers
likely with a chance of thunderstorms in the afternoon. waves
2 to 4 feet. 
.tuesday night...west winds 10 to 15 knots becoming north.
showers likely with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 55 degrees and at michigan
city is 53 degrees.

$$

fzus53 kiwx 181440
nshiwx
expires:202605182015;;770251

nearshore marine forecast
national weather service northern indiana
1040 am edt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz046-182015-
michigan city in to new buffalo mi-
1040 am edt mon may 18 2026

.rest of today...south winds 10 to 15 knots becoming southwest
15 to 20 knots. gusts up to 25 knots. showers likely with a 
chance of thunderstorms early this afternoon. a chance of showers 
and thunderstorms late. waves 1 to 3 feet. 
.tonight...south winds 10 to 15 knots increasing to 15 to
20 knots. gusts up to 25 knots. a slight chance of showers and
thunderstorms in the evening. waves 1 to 3 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest. gusts
up to 25 knots. a chance of showers in the morning, then showers
likely with a chance of thunderstorms in the afternoon. waves
1 to 3 feet building to 2 to 4 feet. 
.tuesday night...west winds 10 to 15 knots becoming north.
showers likely with a chance of thunderstorms in the evening,
then a chance of showers overnight. waves 2 to 3 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 55 degrees and at michigan
city is 53 degrees.

$$

fzus53 klot 180855
nshlot
expires:202605181515;;758873

nearshore marine forecast
national weather service chicago/romeoville il
355 am cdt mon may 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-
355 am cdt mon may 18 2026

.today...south winds 15 to 25 kt. showers likely and a chance of 
thunderstorms this morning, then a slight chance of showers this
afternoon. waves 2 to 4 ft.
.tonight...south winds 15 to 25 kt. slight chance of showers and 
thunderstorms in the evening, then chance of showers and 
thunderstorms overnight. waves 2 to 4 ft. 
.tuesday...southwest winds 20 to 25 kt becoming west 15 to 25 kt
in the afternoon. chance of showers and thunderstorms. waves 3 to
5 ft subsiding to 2 to 4 ft. a small craft advisory may be needed.
.tuesday night...northwest winds 15 to 20 kt becoming north
overnight. slight chance of showers in the evening. waves 2 to 4 
ft. 

$$

fzus53 klot 180855
nshlot
expires:202605181515;;758874

nearshore marine forecast
national weather service chicago/romeoville il
355 am cdt mon may 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-
355 am cdt mon may 18 2026

.today...south winds 15 to 25 kt. showers likely and a chance of 
thunderstorms. waves 2 to 4 ft. 
.tonight...south winds 15 to 25 kt. slight chance of showers and 
thunderstorms in the evening, then chance of showers and 
thunderstorms overnight. waves 2 to 4 ft. 
.tuesday...southwest winds 20 to 25 kt becoming west in the
afternoon. chance of showers and thunderstorms in the morning,
then showers likely and a chance of thunderstorms in the
afternoon. waves 2 to 4 ft. a small craft advisory may be needed.  
.tuesday night...northwest winds 15 to 20 kt becoming north
overnight. chance of showers and slight chance of thunderstorms
in the evening. waves 2 to 4 ft.  

$$

fzus53 kmkx 181410
nshmkx
expires:202605182200;;769733

nearshore marine forecast
national weather service milwaukee/sullivan wi
910 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz644-182200-
port washington to north point light wi-
910 am cdt mon may 18 2026

...small craft advisory in effect from late tonight through
tuesday afternoon...

.rest of today...south wind 10 to 15 knots becoming 10 to
20 knots early in the afternoon, then becoming 10 to 15 knots
late in the afternoon. chance of showers late in the morning and
early afternoon. slight chance of thunderstorms through the day.
slight chance of showers late in the afternoon. waves 2 to
4 feet. 
.tonight...south wind 10 to 15 knots with gusts to around
20 knots rising to 15 to 20 knots after midnight, then becoming
south 15 to 20 knots with gusts to around 25 knots early in the
morning. slight chance of showers and thunderstorms through
around midnight, then chance of showers and thunderstorms after
midnight. waves 3 to 4 feet building to 3 to 5 feet early in the
morning. 
.tuesday...south wind 15 to 20 knots veering west late in the
afternoon. gusts up to 25 knots. slight chance of showers and
thunderstorms in the morning, then chance of showers in the
afternoon. waves 3 to 5 feet subsiding to 3 to 4 feet in the
afternoon. 
.tuesday night...northwest wind 15 to 20 knots easing to 10 to
15 knots late in the evening, then becoming northwest 10 to
15 knots with gusts to around 20 knots after midnight veering
north early in the morning. partly cloudy. waves 1 to 2 feet. 

$$

fzus53 kmkx 181410
nshmkx
expires:202605182200;;769734

nearshore marine forecast
national weather service milwaukee/sullivan wi
910 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz645-182200-
north point light to wind point wi-
910 am cdt mon may 18 2026

...small craft advisory in effect from late tonight through
tuesday afternoon...

.rest of today...south wind 10 to 20 knots becoming 15 to
20 knots early in the afternoon, then easing to 10 to 15 knots
late in the afternoon. gusts up to 25 knots. chance of showers
late in the morning and early afternoon. slight chance of
thunderstorms through the day. slight chance of showers late in
the afternoon. waves 2 to 4 feet. 
.tonight...south wind 10 to 15 knots becoming 10 to 20 knots late
in the evening, then becoming 15 to 20 knots after midnight
becoming south 15 to 20 knots early in the morning. gusts up to
25 knots. slight chance of showers and thunderstorms through
around midnight, then chance of showers and thunderstorms after
midnight. waves 3 to 4 feet. 
.tuesday...south wind 15 to 20 knots veering west late in the
afternoon. gusts up to 25 knots. chance of showers and slight
chance of thunderstorms through the day. waves 3 to 4 feet. 
.tuesday night...northwest wind 10 to 15 knots with gusts to
around 20 knots veering north early in the morning. partly
cloudy. waves 1 to 2 feet building to 2 to 4 feet early in the
morning. 

$$

fzus53 kmkx 181410
nshmkx
expires:202605182200;;769735

nearshore marine forecast
national weather service milwaukee/sullivan wi
910 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz646-182200-
wind point wi to winthrop harbor il-
910 am cdt mon may 18 2026

...small craft advisory in effect from late tonight through
tuesday afternoon...

.rest of today...south wind 10 to 20 knots becoming 10 to
15 knots in the afternoon. gusts up to 25 knots. rain showers
likely and a chance of thunderstorms late in the morning, then
chance of showers and slight chance of thunderstorms in the
afternoon. waves 2 to 4 feet. 
.tonight...south wind 10 to 15 knots rising to 15 to 20 knots in
the late evening and early morning, then becoming south 15 to
20 knots with gusts to around 25 knots early in the morning.
slight chance of showers and thunderstorms through around
midnight. chance of showers and thunderstorms after midnight.
waves 3 to 4 feet. 
.tuesday...south wind 15 to 20 knots veering west late in the
afternoon. gusts up to 25 knots. chance of showers and slight
chance of thunderstorms. waves 3 to 4 feet subsiding to 1 to
2 feet late in the afternoon. 
.tuesday night...northwest wind 10 to 15 knots with gusts to
around 20 knots veering north early in the morning. partly
cloudy. waves 1 to 2 feet. 

$$

fzus53 kmkx 181410
nshmkx
expires:202605182200;;769732

nearshore marine forecast
national weather service milwaukee/sullivan wi
910 am cdt mon may 18 2026

for waters within five nautical miles of shore on lake michigan


lmz643-182200-
sheboygan to port washington wi-
910 am cdt mon may 18 2026

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

.rest of today...south wind 10 to 20 knots becoming 10 to
15 knots in the afternoon. chance of showers late in the morning
and early afternoon. slight chance of thunderstorms through the
day. slight chance of showers late in the afternoon. waves 3 to
4 feet. 
.tonight...south wind 10 to 15 knots rising to 15 to 20 knots
after midnight. patchy fog through around midnight. slight chance
of showers and thunderstorms through around midnight, then
showers likely and a chance of thunderstorms after midnight.
waves 3 to 4 feet building to 4 to 6 feet. 
.tuesday...south wind 15 to 20 knots veering west late in the
afternoon. gusts up to 25 knots. chance of thunderstorms and
slight chance of showers in the morning, then chance of showers
in the afternoon. waves 5 to 7 feet subsiding to 3 to 4 feet. 
.tuesday night...northwest wind 15 to 20 knots easing to 10 to
15 knots with gusts to around 20 knots late in the evening, then
becoming northwest 10 to 15 knots with gusts to around 20 knots
after midnight veering north early in the morning. partly cloudy.
waves 2 to 4 feet subsiding to 1 to 2 feet in the late evening
and overnight. 

$$