fzus53 kapx 180727
nshapx
expires:202605181530;;755757

nearshore marine forecast
national weather service gaylord mi
327 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.


lmz346-181530-
manistee to point betsie mi-
327 am edt mon may 18 2026

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

.today...southwest wind 15 to 25 knots becoming south 5 to 15 
knots early in the evening. chance of thunderstorms early in the 
morning. chance of showers through the day. slight chance of 
thunderstorms in the afternoon. waves 2 to 4 feet building to 3 to
5 feet in the morning. 
.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
4 to 6 feet. 

winds and waves higher in the vicinity of thunderstorms.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kgrb 180625
nshgrb
expires:202605181000;;751454

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

for waters within five nautical miles of shore on lake michigan


lmz542-543-181000-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
124 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...

.rest of the night...se wind 5 to 10 kts veering s 10 to 15 kts
after midnight. waves 3 to 5 ft. areas of dense fog. a slight
chance of showers and thunderstorms. 
.monday...s wind 15 to 25 kts decreasing to 10 to 15 kts early in
the afternoon. waves 4 to 7 ft. patchy dense fog in the morning.
a chance of showers and a slight chance of thunderstorms. 
.monday night...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 subsiding to 4 to 7 ft in the
afternoon. a chance of showers in the morning.  

$$

fzus53 kiwx 180740
nshiwx
expires:202605181415;;756217

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

for waters within five nautical miles of shore on lake michigan


lmz046-181415-
michigan city in to new buffalo mi-
340 am edt mon may 18 2026

.today...south winds 10 to 15 knots becoming southwest 15 to
20 knots. gusts up to 25 knots. a chance of showers and 
thunderstorms this morning, then showers likely with a chance of 
thunderstorms this afternoon. waves 1 to 2 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 2 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. 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.
waves 2 to 3 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 53 degrees and at michigan
city is 51 degrees.

$$

fzus53 kiwx 180740
nshiwx
expires:202605181415;;756218

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

for waters within five nautical miles of shore on lake michigan


lmz043-181415-
new buffalo mi to st joseph mi-
340 am edt mon may 18 2026

.today...south winds 10 to 15 knots becoming southwest. gusts up
to 25 knots. a chance of showers and thunderstorms this morning,
then showers likely with a chance of thunderstorms this
afternoon. waves 1 to 2 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 2 feet. 
.tuesday...south winds 15 to 20 knots becoming southwest 10 to
15 knots. 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.
waves 2 to 4 feet. 

winds and waves higher in and near thunderstorms.

the water temperature at st. joseph is 53 degrees and at michigan
city is 51 degrees.

$$

fzus53 klot 180301
nshlot
expires:202605180930;;743104

nearshore marine forecast
national weather service chicago/romeoville il
1001 pm cdt sun may 17 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>742-180930-
winthrop harbor to wilmette harbor il-
wilmette harbor to northerly island il-
northerly island to calumet harbor il-
1001 pm cdt sun may 17 2026

...small craft advisory in effect until 4 am cdt monday...

.rest of tonight...south winds 20 to 25 kt subsiding to 15 to 25
kt. partly cloudy. waves 3 to 5 ft. 
.monday...south winds 15 to 25 kt. showers and thunderstorms 
likely. variable and gusty winds in and near thunderstorms. waves
3 to 5 ft.
.monday night...south winds 15 to 25 kt. chance of showers and 
thunderstorms. waves 2 to 4 ft. 
.tuesday...southwest winds 20 to 25 kt becoming west in the
afternoon. showers likely and slight chance of thunderstorms.
waves 3 to 5 ft subsiding to 2 to 4 ft.

$$

fzus53 klot 180301
nshlot
expires:202605180930;;743105

nearshore marine forecast
national weather service chicago/romeoville il
1001 pm cdt sun may 17 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>745-180930-
calumet harbor il to gary in-gary to burns harbor in-
burns harbor to michigan city in-
1001 pm cdt sun may 17 2026

...small craft advisory in effect until 4 am cdt monday...

.rest of tonight...south winds 20 to 25 kt subsiding to 15 to 25
kt. partly cloudy late in the evening, then becoming mostly 
clear. waves 2 to 4 ft.
.monday...south winds 20 to 25 kt. showers and thunderstorms
likely. variable and gusty winds in and near thunderstorms. waves
2 to 4 ft. 
.monday night...south winds 15 to 25 kt. chance of showers and 
thunderstorms. waves 2 to 4 ft. 
.tuesday...southwest winds 20 to 25 kt. slight chance of showers 
and thunderstorms in the morning, then showers and a chance of 
thunderstorms in the afternoon. waves 2 to 4 ft. 

$$

fzus53 kmkx 180810
nshmkx
expires:202605182100;;757853

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

for waters within five nautical miles of shore on lake michigan


lmz643-182100-
sheboygan to port washington wi-
310 am cdt mon may 18 2026

.early this morning...south wind 10 to 15 knots. mostly cloudy
with a 50 percent chance of showers and thunderstorms. areas of
dense fog. waves 3 to 5 feet. 
.today...south wind 15 to 20 knots. chance of showers and
thunderstorms until late afternoon, then slight chance of showers
and thunderstorms late in the afternoon. waves 3 to 4 feet
building to 4 to 6 feet late in the morning, then subsiding to
3 to 4 feet in the afternoon. 
.tonight...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. 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. a small craft advisory
may be needed. 
.tuesday...south wind 15 to 25 knots veering west late in the
afternoon. rain showers likely and a chance of thunderstorms
through the day. 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 after midnight, then 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. 

$$

fzus53 kmkx 180810
nshmkx
expires:202605182100;;757854

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

for waters within five nautical miles of shore on lake michigan


lmz644-182100-
port washington to north point light wi-
310 am cdt mon may 18 2026

.early this morning...south wind 10 to 15 knots. mostly cloudy
with a 50 percent chance of showers and thunderstorms. patchy
dense fog. waves 3 to 4 feet. 
.today...south wind 10 to 20 knots becoming 15 to 20 knots in the
late morning and early afternoon, then becoming south 15 to
20 knots late in the afternoon. chance of showers and
thunderstorms until late afternoon, then slight chance of showers
and thunderstorms late in the afternoon. waves 3 to 4 feet. 
.tonight...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. 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 3 to
5 feet early in the morning. a small craft advisory may be
needed. 
.tuesday...south wind 15 to 25 knots veering west late in the
afternoon. rain showers likely and a chance of thunderstorms
through the day. 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 after midnight, then veering north early in the morning.
partly cloudy. waves 1 to 2 feet. 

$$

fzus53 kmkx 180810
nshmkx
expires:202605182100;;757855

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

for waters within five nautical miles of shore on lake michigan


lmz645-182100-
north point light to wind point wi-
310 am cdt mon may 18 2026

.early this morning...south wind 10 to 15 knots. mostly cloudy
with a 50 percent chance of showers and thunderstorms. waves 2 to
4 feet. 
.today...south wind 15 to 20 knots. rain showers likely in the
morning. chance of thunderstorms through the day. chance of
showers in the afternoon. waves 2 to 4 feet. 
.tonight...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. slight chance of showers and thunderstorms
through around midnight, then showers likely and a chance of
thunderstorms after midnight. waves 3 to 4 feet. a small craft
advisory may be needed. 
.tuesday...south wind 15 to 25 knots veering southwest late in
the morning, then veering west early in the afternoon becoming
15 to 20 knots late in the afternoon. showers likely and a chance
of thunderstorms. waves 3 to 4 feet. 
.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 after midnight 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 180810
nshmkx
expires:202605182100;;757856

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

for waters within five nautical miles of shore on lake michigan


lmz646-182100-
wind point wi to winthrop harbor il-
310 am cdt mon may 18 2026

.early this morning...south wind 10 to 15 knots rising to 15 to
20 knots early in the morning. partly cloudy with a 50 percent
chance of showers and thunderstorms. waves 2 to 4 feet. 
.today...south wind 15 to 20 knots easing to 10 to 15 knots in
the afternoon. rain showers likely in the morning. chance of
thunderstorms through the day. chance of showers in the
afternoon. waves 2 to 4 feet. 
.tonight...south wind 15 to 20 knots becoming 15 to 25 knots
early in the morning. slight chance of showers and thunderstorms
through around midnight, then showers likely and a chance of
thunderstorms after midnight. waves 3 to 4 feet. a small craft
advisory may be needed. 
.tuesday...south wind 15 to 25 knots veering southwest late in
the morning, then becoming 15 to 20 knots early in the afternoon
veering west late in the afternoon. showers likely and a 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. 

$$