fzus53 kapx 191427
nshapx
expires:202604192230;;639083

nearshore marine forecast
national weather service gaylord mi
1027 am edt sun apr 19 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.


lsz322-192230-
st. marys river point iroquois to e. potagannissing bay-
1027 am edt sun apr 19 2026

...small craft advisory in effect through late tonight...

.today...northwest wind 15 to 25 knots. isolated snow showers. 
.tonight...northwest wind 15 to 20 knots. partly cloudy. 
.monday...west wind 5 to 10 knots. mostly sunny. 
.monday night...south wind 10 to 15 knots. mostly cloudy. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 191427
nshapx
expires:202604192230;;639094

nearshore marine forecast
national weather service gaylord mi
1027 am edt sun apr 19 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.


lhz349-192230-
sturgeon pt to alabaster mi-
1027 am edt sun apr 19 2026

...small craft advisory in effect through late tonight...

.today...northwest wind 15 to 25 knots. isolated showers in the
late morning. scattered snow showers through the day. scattered
showers in the afternoon. waves 2 feet or less building to 2 to
3 feet in the afternoon. 
.tonight...northwest wind 10 to 20 knots. partly cloudy. waves
2 to 4 feet. 
.monday...southwest wind 5 to 10 knots. mostly sunny. waves
2 feet or less. 
.monday night...south wind 10 to 20 knots. mostly cloudy. waves
3 to 5 feet. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 191427
nshapx
expires:202604192230;;639086

nearshore marine forecast
national weather service gaylord mi
1027 am edt sun apr 19 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.


lmz323-192230-
grand traverse bay south of a line grand traverse light to
norwood mi-
1027 am edt sun apr 19 2026

...small craft advisory in effect through late tonight...

.today...northwest wind 15 to 25 knots. isolated snow showers in
the late morning, then scattered snow showers in the afternoon.
waves 2 to 4 feet. 
.tonight...north wind 15 to 20 knots. partly cloudy. waves 2 to
4 feet. 
.monday...west wind 5 to 10 knots. mostly sunny. waves 2 feet or
less. 
.monday night...south wind 15 to 20 knots. mostly cloudy. waves
2 to 3 feet. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 191427
nshapx
expires:202604192230;;639084

nearshore marine forecast
national weather service gaylord mi
1027 am edt sun apr 19 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.


lmz341-192230-
seul choix point to 5nm west of mackinac bridge-
1027 am edt sun apr 19 2026

...small craft advisory in effect through late tonight...

.today...northwest wind 15 to 25 knots. isolated snow showers
through the day. waves 2 to 3 feet. 
.tonight...northwest wind 15 to 20 knots. slight chance of snow
showers. waves 2 to 3 feet. 
.monday...southwest wind 15 to 20 knots. mostly sunny. waves 2 to
4 feet. 
.monday night...south wind 15 to 25 knots. mostly cloudy. waves
4 to 7 feet. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 191427
nshapx
expires:202604192230;;639085

nearshore marine forecast
national weather service gaylord mi
1027 am edt sun apr 19 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.


lmz342-192230-
norwood mi to 5nm west of mackinac bridge including little
traverse bay-
1027 am edt sun apr 19 2026

...small craft advisory in effect through late tonight...

.today...northwest wind 15 to 25 knots. scattered snow showers in
the afternoon. waves 2 to 4 feet. 
.tonight...northwest wind 15 to 20 knots. partly cloudy. waves
2 to 4 feet. 
.monday...west wind 10 to 15 knots. mostly sunny. waves 2 feet or
less. 
.monday night...south wind 15 to 20 knots. mostly cloudy. waves
2 to 4 feet. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 191427
nshapx
expires:202604192230;;639087

nearshore marine forecast
national weather service gaylord mi
1027 am edt sun apr 19 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.


lmz344-192230-
sleeping bear point to grand traverse light mi-
1027 am edt sun apr 19 2026

...small craft advisory in effect through late tonight...

.today...northwest wind 15 to 25 knots. scattered snow showers in
the afternoon. waves 2 to 4 feet. 
.tonight...north wind 15 to 20 knots. partly cloudy. waves 2 to
4 feet. 
.monday...west wind 5 to 10 knots. mostly sunny. waves 2 feet or
less. 
.monday night...south wind 10 to 20 knots. mostly cloudy. waves
2 to 4 feet. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 191427
nshapx
expires:202604192230;;639088

nearshore marine forecast
national weather service gaylord mi
1027 am edt sun apr 19 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.


lmz345-192230-
point betsie to sleeping bear point mi-
1027 am edt sun apr 19 2026

...small craft advisory in effect through late tonight...

.today...northwest wind 15 to 25 knots becoming north 10 to
15 knots early in the evening. isolated snow showers in the
afternoon. waves 2 to 4 feet. 
.tonight...north wind 10 to 15 knots. partly cloudy. waves 2 to
3 feet. 
.monday...southwest wind 10 to 15 knots. mostly sunny. waves
2 feet or less. 
.monday night...south wind 15 to 20 knots. mostly cloudy. waves
2 to 4 feet. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 191427
nshapx
expires:202604192230;;639089

nearshore marine forecast
national weather service gaylord mi
1027 am edt sun apr 19 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.


lmz346-192230-
manistee to point betsie mi-
1027 am edt sun apr 19 2026

...small craft advisory in effect through late tonight...

.today...north wind 10 to 15 knots. isolated snow showers in the
late morning. waves 2 to 3 feet. 
.tonight...north wind 10 to 15 knots. partly cloudy. waves 2 to
3 feet. 
.monday...southwest wind 10 to 15 knots. mostly sunny. waves
2 feet or less. 
.monday night...south wind 10 to 20 knots. mostly cloudy. waves
3 to 5 feet. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 191427
nshapx
expires:202604192230;;639082

nearshore marine forecast
national weather service gaylord mi
1027 am edt sun apr 19 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.


lsz321-192230-
whitefish bay (u.s. portion)/whitefish point to point iroquois mi-
1027 am edt sun apr 19 2026

...small craft advisory in effect through late tonight...

.today...northwest wind 15 to 25 knots. scattered snow showers.
waves 5 to 8 feet. waves occasionally around 9 feet. 
.tonight...northwest wind 15 to 20 knots. mostly cloudy. waves
4 to 7 feet. 
.monday...west wind 5 to 10 knots. partly sunny. waves 2 to
3 feet. 
.monday night...south wind 10 to 20 knots. mostly cloudy. waves
2 to 3 feet. 

wave heights are valid for ice free areas.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 191427
nshapx
expires:202604192230;;639090

nearshore marine forecast
national weather service gaylord mi
1027 am edt sun apr 19 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.


lhz345-192230-
straits of mackinac within 5 nm of mackinac bridge including
mackinac island-
1027 am edt sun apr 19 2026

...small craft advisory in effect through late tonight...

.today...northwest wind 10 to 20 knots. isolated snow showers in
the afternoon. waves 2 to 3 feet. 
.tonight...northwest wind 15 to 20 knots. partly cloudy. waves
2 to 3 feet. 
.monday...west wind 10 to 15 knots. mostly sunny. waves 2 feet or
less. 
.monday night...south wind 10 to 15 knots. mostly cloudy. waves
2 feet or less. 

wave heights are valid for ice free areas.

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 191427
nshapx
expires:202604192230;;639091

nearshore marine forecast
national weather service gaylord mi
1027 am edt sun apr 19 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.


lhz346-192230-
st ignace to false detour channel-
1027 am edt sun apr 19 2026

...small craft advisory in effect through late tonight...

.today...northwest wind 15 to 25 knots. isolated snow showers in
the afternoon. waves 2 to 4 feet. 
.tonight...northwest wind 15 to 25 knots. partly cloudy. waves
2 to 4 feet. 
.monday...west wind 10 to 15 knots. mostly sunny. waves 2 feet or
less. 
.monday night...south wind 10 to 20 knots. mostly cloudy. waves
2 to 4 feet. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 191427
nshapx
expires:202604192230;;639092

nearshore marine forecast
national weather service gaylord mi
1027 am edt sun apr 19 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.


lhz347-192230-
5nm east of mackinac bridge to presque isle light mi including
bois blanc island-
1027 am edt sun apr 19 2026

...small craft advisory in effect through late tonight...

.today...northwest wind 15 to 25 knots. isolated snow showers in
the afternoon. waves 3 to 5 feet building to 4 to 7 feet in the
afternoon. waves occasionally around 9 feet. 
.tonight...northwest wind 15 to 25 knots. partly cloudy. waves
4 to 7 feet. 
.monday...northwest wind 5 to 10 knots. mostly sunny. waves
2 feet or less. 
.monday night...south wind 10 to 15 knots. mostly cloudy. waves
2 to 3 feet. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kapx 191427
nshapx
expires:202604192230;;639093

nearshore marine forecast
national weather service gaylord mi
1027 am edt sun apr 19 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.


lhz348-192230-
presque isle light to sturgeon pt mi including thunder bay
national marine sanctuary-
1027 am edt sun apr 19 2026

...small craft advisory in effect through late tonight...

.today...northwest wind 15 to 25 knots. scattered snow showers in
the late morning, then isolated snow showers in the afternoon.
waves 3 to 5 feet building to 4 to 7 feet in the afternoon. waves
occasionally around 9 feet. 
.tonight...northwest wind 15 to 25 knots. partly cloudy. waves
5 to 8 feet. 
.monday...north wind 10 to 15 knots. mostly sunny. waves 2 to
3 feet. 
.monday night...south wind 10 to 20 knots. mostly cloudy. waves
3 to 5 feet. 

see the open lakes forecast for days 3 through 5.

$$

fzus53 kdlh 191600
nshdlh
expires:202604192200;;641797

nearshore marine forecast
national weather service duluth mn
1100 am cdt sun apr 19 2026

for waters within five nautical miles of shore on lake 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.


lsz148-192200-
oak point to saxon harbor wi-
1100 am cdt sun apr 19 2026

.rest of today...northwest wind 10 to 15 knots. mostly sunny.
waves 1 to 2 feet. 
.tonight...north wind 5 knots becoming west early in the morning.
mostly clear. waves 1 foot or less. 
.monday...south wind 10 to 15 knots with gusts to around
20 knots. mostly sunny in the morning then becoming mostly
cloudy. waves 1 to 2 feet. 
.monday night...southwest wind 10 to 15 knots. gusts up to
25 knots decreasing to 20 knots early in the morning. mostly
clear. waves 1 to 2 feet. 

note...wave height forecasts are for ice free areas.

$$

fzus53 kdlh 191600
nshdlh
expires:202604192200;;641788

nearshore marine forecast
national weather service duluth mn
1100 am cdt sun apr 19 2026

for waters within five nautical miles of shore on lake 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.


lsz141-192200-
grand marais to taconite harbor mn-
1100 am cdt sun apr 19 2026

.rest of today...northwest wind 10 to 15 knots with gusts to
around 20 knots easing to 10 knots late. sunny. waves 1 foot or
less. 
.tonight...northwest wind 5 to 10 knots. mostly clear. waves
1 foot or less. 
.monday...southwest wind 5 knots becoming south 10 to 15 knots
with gusts to around 20 knots in the late morning and afternoon.
mostly sunny in the morning then becoming mostly cloudy. waves
1 to 2 feet. 
.monday night...southwest wind 10 to 15 knots with gusts to
around 20 knots becoming west 5 to 10 knots after midnight.
mostly clear. waves 1 to 2 feet. 

note...wave height forecasts are for ice free areas.

$$

fzus53 kdlh 191600
nshdlh
expires:202604192200;;641787

nearshore marine forecast
national weather service duluth mn
1100 am cdt sun apr 19 2026

for waters within five nautical miles of shore on lake 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.


lsz140-192200-
grand portage to grand marais mn-
1100 am cdt sun apr 19 2026

.rest of today...northwest wind 10 to 15 knots. gusts up to
20 knots late in the morning. mostly sunny. waves 1 to 2 feet. 
.tonight...northwest wind 5 to 10 knots. mostly clear. waves
1 foot or less. 
.monday...southwest wind 10 to 15 knots with gusts to around
20 knots becoming south 15 to 20 knots with gusts to around
25 knots in the afternoon. mostly sunny in the morning then
becoming mostly cloudy. waves 1 to 2 feet building to 2 to 4 feet
in the afternoon. a small craft advisory may be needed. 
.monday night...southwest wind 15 to 20 knots with gusts to
around 30 knots becoming west with gusts to around 25 knots after
midnight. mostly cloudy in the evening then clearing. waves 3 to
5 feet. a small craft advisory may be needed. 

note...wave height forecasts are for ice free areas.

$$

fzus53 kdtx 191342
nshdtx
expires:202604192145;;637281

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
942 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lhz422-192145-
inner saginaw bay sw of point au gres to bay port mi-
942 am edt sun apr 19 2026

...small craft advisory in effect from 2 pm edt this afternoon
through this evening...

.rest of today...west winds 15 to 20 knots with gusts to 25 knots
late in the afternoon. partly cloudy. a chance of showers and a 
slight chance of thunderstorms in the afternoon. waves 2 to 4 
feet. 
.tonight...northwest winds 15 to 20 knots. gusts to 30 knots
early in the evening. mostly clear. a chance of light rain and
snow showers early in the evening. waves 2 to 4 feet subsiding to
1 to 3 feet after midnight. 
.monday...northwest winds 10 to 15 knots diminishing to 5 to
10 knots in the late morning and early afternoon, then backing to
the southwest early in the afternoon. mostly sunny. waves 2 feet
or less. 
.monday night...south winds 10 to 15 knots increasing to 20 to
25 knots. partly cloudy until early morning becoming mostly
cloudy. waves 1 to 3 feet building to 2 to 4 feet after midnight.

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kdtx 191342
nshdtx
expires:202604192145;;637283

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
942 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lhz441-192145-
port austin to harbor beach mi-
942 am edt sun apr 19 2026

...small craft advisory in effect from 2 pm edt this afternoon
through monday morning...

.rest of today...west winds 10 to 15 knots becoming north 15 to
20 knots with gusts to 25 knots late in the afternoon. mostly 
sunny late in the morning becoming partly cloudy. a chance of 
showers, light snow showers and a slight chance of thunderstorms 
in the afternoon. waves 2 to 4 feet. 
.tonight...northwest winds 15 to 20 knots. gusts to 30 knots
early in the evening. partly cloudy. a chance of light snow
showers early in the evening. waves 5 to 7 feet. waves
occasionally around 10 feet. 
.monday...northwest winds 15 to 20 knots diminishing to 10 to
15 knots in the late morning and early afternoon, then becoming
southwest 5 to 10 knots early in the afternoon. partly cloudy
early in the morning becoming mostly sunny. waves 3 to 5 feet
subsiding to 1 to 3 feet early in the afternoon. waves
occasionally around 7 feet. 
.monday night...south winds 10 to 15 knots increasing to 15 to
20 knots after midnight. partly cloudy until early morning
becoming mostly cloudy. waves 1 to 3 feet building to 2 to 4 feet
after midnight. 

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kdtx 191342
nshdtx
expires:202604192145;;637284

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
942 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lhz442-192145-
harbor beach to port sanilac mi-
942 am edt sun apr 19 2026

...small craft advisory in effect from 2 pm edt this afternoon
through monday morning...

.rest of today...west winds 10 to 15 knots becoming north 15 to
20 knots with gusts to 25 knots late in the afternoon. mostly 
sunny late in the morning becoming partly cloudy. light showers, 
light snow showers likely and a slight chance of thunderstorms in 
the afternoon. waves 1 to 3 feet. 
.tonight...north winds 15 to 20 knots. partly cloudy. a chance of
light snow showers early in the evening. waves 4 to 6 feet. waves
occasionally around 8 feet. 
.monday...northwest winds 10 to 15 knots becoming northeast 5 to
10 knots early in the afternoon. partly cloudy until late
afternoon becoming mostly sunny. waves 3 to 5 feet subsiding to
1 to 3 feet early in the afternoon. waves occasionally around
7 feet. 
.monday night...southeast winds 10 to 15 knots becoming south
15 to 20 knots after midnight. partly cloudy. waves 1 to 3 feet
building to 2 to 4 feet after midnight. 

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kdtx 191342
nshdtx
expires:202604192145;;637285

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
942 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lhz443-192145-
port sanilac to port huron mi-
942 am edt sun apr 19 2026

...small craft advisory in effect from 2 pm edt this afternoon
through monday morning...

.rest of today...west winds 10 to 15 knots becoming northwest
15 to 20 knots with gusts to 25 knots late in the afternoon. 
mostly sunny late in the morning. light showers likely, possible 
snow showers and thunderstorms in the afternoon. waves 1 to 3 
feet. 
.tonight...north winds 15 to 20 knots. mostly cloudy early in the
evening becoming partly cloudy. light snow showers likely early
in the evening. waves 3 to 5 feet. waves occasionally around
7 feet. 
.monday...northwest winds 10 to 15 knots becoming northeast 5 to
10 knots early in the afternoon. mostly sunny. waves 2 to 4 feet
subsiding to 1 to 3 feet early in the afternoon. 
.monday night...southeast winds 5 to 10 knots becoming south
10 to 15 knots in the late evening and early morning, then
increasing to 15 to 20 knots after midnight. partly cloudy. waves
1 to 3 feet building to 2 to 4 feet after midnight. 

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kdtx 191342
nshdtx
expires:202604192145;;637282

nearshore marine forecast for michigan
national weather service detroit/pontiac mi
942 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lhz421-192145-
outer saginaw bay sw of alabaster to port austin mi to inner
saginaw bay-
942 am edt sun apr 19 2026

...small craft advisory in effect from 2 pm edt this afternoon
through monday morning...

.rest of today...west winds around 15 knots becoming northwest 15
to 25 knots in the afternoon. partly cloudy. a chance of showers,
light snow showers and a slight chance of thunderstorms in the 
afternoon. waves 2 to 4 feet. 
.tonight...northwest winds 15 to 20 knots with gusts to 25 knots.
mostly clear. waves 4 to 6 feet. waves occasionally around 8 
feet.
.monday...northwest winds 10 to 15 knots becoming west 5 to
10 knots in the late morning and early afternoon, then backing to
the southwest early in the afternoon. mostly sunny. waves 3 to
5 feet subsiding to 1 to 3 feet in the late morning and
afternoon. waves occasionally around 7 feet. 
.monday night...south winds 10 to 15 knots increasing to 20 to
25 knots. partly cloudy until early morning becoming mostly
cloudy. waves 1 to 3 feet building to 3 to 5 feet after midnight.
waves occasionally around 7 feet. 

see lake huron open lake forecast for days 3 through 5.

$$

fzus53 kgrb 191545
nshgrb
expires:202604192200;;641455

nearshore marine forecast
national weather service green bay wi
1045 am cdt sun apr 19 2026

for waters within five nautical miles of shore on lake michigan


lmz542-543-192200-
sturgeon bay to two rivers wi-two rivers to sheboygan wi-
1045 am cdt sun apr 19 2026

.this afternoon...nw wind 10 to 15 kts veering n early in the
afternoon. waves 2 ft or less. a chance of sprinkles. 
.tonight...n wind 10 to 15 kts. waves 2 ft or less. partly cloudy
in the evening then clearing. 
.monday...sw wind 5 to 10 kts backing s 10 to 15 kts mid-day,
then increasing to 15 to 25 kts early in the afternoon. waves
2 ft or less building to 3 to 5 ft in the afternoon. mostly sunny
in the morning then becoming partly cloudy. a small craft
advisory may be needed. 
.monday night...s wind to 30 kts decreasing to 10 to 20 kts after
midnight. waves 4 to 7 ft. mostly cloudy in the evening then
becoming partly cloudy.  

$$

fzus53 kgrb 191545
nshgrb
expires:202604192200;;641453

nearshore marine forecast
national weather service green bay wi
1045 am cdt sun apr 19 2026

for waters within five nautical miles of shore on lake michigan


lmz521-522-192200-
green bay south of line from cedar river to rock island passage
and north of a line from oconto wi to little sturgeon bay wi-
green bay south of line from oconto wi to little sturgeon bay wi-
1045 am cdt sun apr 19 2026

.this afternoon...nw wind 10 to 15 kts. waves 2 ft or less. a
chance of sprinkles and a slight chance of snow showers. 
.tonight...n wind 10 to 15 kts backing nw 5 to 10 kts after
midnight. waves 2 ft or less. clear.
.monday...w wind 5 to 10 kts backing sw mid-day, then backing s
10 to 20 kts early in the afternoon. waves 1 to 3 ft. mostly
sunny. 
.monday night...s wind 15 to 25 kts veering sw 10 to 15 kts after
midnight. waves 2 to 4 ft. mostly cloudy in the evening then
becoming partly cloudy. a small craft advisory may be needed.  

$$

fzus53 kgrb 191545
nshgrb
expires:202604192200;;641454

nearshore marine forecast
national weather service green bay wi
1045 am cdt sun apr 19 2026

for waters within five nautical miles of shore on lake michigan


lmz541-192200-
rock island passage to sturgeon bay wi-
1045 am cdt sun apr 19 2026

.this afternoon...nw wind 10 to 15 kts. waves 2 ft or less. a
chance of sprinkles and snow showers. 
.tonight...n wind 10 to 15 kts backing nw 5 to 10 kts after
midnight. waves 1 to 3 ft. mostly clear. 
.monday...w wind 5 to 10 kts backing sw 10 to 15 kts mid-day,
then backing s 15 to 25 kts early in the afternoon. waves 2 ft or
less building to 3 to 5 ft in the afternoon. mostly sunny in the
morning then becoming partly cloudy. a small craft advisory may
be needed. 
.monday night...s wind to 30 kts decreasing to 10 to 20 kts after
midnight. waves 5 to 8 ft. mostly cloudy in the evening then
becoming partly cloudy.  

$$

fzus53 kgrr 191138
nshgrr
expires:202604192000;;633476

nearshore marine forecast
national weather service grand rapids mi
738 am edt sun apr 19 2026

for waters within five nautical miles of shore on lake michigan


lmz849-192000-
pentwater to manistee mi-
738 am edt sun apr 19 2026

...small craft advisory in effect until 2 pm edt this afternoon...

.today...west winds 15 to 20 knots veering north early in the
afternoon. partly sunny. a slight chance of snow showers in the
morning. waves 2 to 4 feet. 
.tonight...north winds 10 to 20 knots. partly cloudy. waves 2 to
3 feet. 
.monday...northwest winds 5 to 10 knots backing southwest 10 to
20 knots in the late morning and afternoon. mostly sunny. waves 1 to
3 feet. 
.monday night...south winds 15 to 25 knots. partly cloudy. waves
3 to 6 feet.
.tuesday...south winds 15 to 25 knots. sunny. waves 4 to 6 feet. 
.wednesday...northeast winds 5 to 10 knots backing northwest early
in the afternoon. sunny. waves around 1 foot. 
.thursday...south winds 15 to 25 knots. partly sunny. waves 2 to
3 feet building to 3 to 5 feet in the late morning and afternoon. 

$$

fzus53 kgrr 191138
nshgrr
expires:202604192000;;633477

nearshore marine forecast
national weather service grand rapids mi
738 am edt sun apr 19 2026

for waters within five nautical miles of shore on lake michigan


lmz848-192000-
whitehall to pentwater mi-
738 am edt sun apr 19 2026

...small craft advisory in effect until 2 pm edt this afternoon...

.today...west winds 20 to 25 knots veering northwest early in the
afternoon. mostly sunny. a slight chance of rain and snow showers in
the morning. waves 2 to 4 feet. 
.tonight...north winds 10 to 20 knots. partly cloudy. waves 2 to
3 feet. 
.monday...north winds 5 to 10 knots backing southwest 10 to 15 knots
in the late morning and afternoon. mostly sunny. waves 1 to 2 feet. 
.monday night...south winds 15 to 25 knots. partly cloudy. waves
1 to 3 feet building to 4 to 6 feet in the late evening and
overnight. 
.tuesday...south winds 15 to 25 knots. sunny. waves 5 to 7 feet. 
.wednesday...northeast winds 5 to 10 knots backing northwest early
in the afternoon. sunny. waves 1 foot or less. 
.thursday...south winds 15 to 25 knots. partly sunny. waves 2 to
3 feet building to 3 to 5 feet in the late morning and afternoon. 

$$

fzus53 kgrr 191138
nshgrr
expires:202604192000;;633478

nearshore marine forecast
national weather service grand rapids mi
738 am edt sun apr 19 2026

for waters within five nautical miles of shore on lake michigan


lmz847-192000-
grand haven to whitehall mi-
738 am edt sun apr 19 2026

...small craft advisory in effect until 2 pm edt this afternoon...

.today...west winds 20 to 25 knots veering northwest early in the
afternoon. mostly sunny with a slight chance of rain and snow
showers. waves 2 to 4 feet. 
.tonight...north winds 10 to 20 knots veering northeast after
midnight. mostly clear. waves 1 to 3 feet.
.monday...north winds 5 to 10 knots backing southwest 10 to 15 knots
in the late morning and afternoon. sunny. waves around 1 foot. 
.monday night...south winds to 30 knots. partly cloudy. waves 1 to
2 feet building to 4 to 6 feet. 
.tuesday...south winds to 30 knots veering southwest 15 to 20 knots
early in the afternoon. sunny. waves 4 to 6 feet. 
.wednesday...northeast winds 5 to 10 knots backing west early in the
afternoon. sunny. waves 1 foot or less. 
.thursday...south winds 15 to 20 knots. partly sunny. waves 1 to
3 feet building to 2 to 4 feet in the late morning and afternoon. 

$$

fzus53 kmkx 191610
nshmkx
expires:202604192200;;642568

nearshore marine forecast
national weather service milwaukee/sullivan wi
1110 am cdt sun apr 19 2026

for waters within five nautical miles of shore on lake michigan


lmz643-192200-
sheboygan to port washington wi-
1110 am cdt sun apr 19 2026

.rest of today...northwest wind 10 to 15 knots veering north late
in the afternoon. gusts up to 20 knots. scattered showers early
in the afternoon. waves around 1 foot. 
.tonight...north wind 10 to 15 knots veering northeast late in
the evening, then backing north 5 to 15 knots after midnight
becoming 5 to 10 knots early in the morning. partly cloudy. waves
1 to 2 feet. 
.monday...west wind 5 to 10 knots backing south late in the
morning, then rising to 10 to 15 knots early in the afternoon
rising to 15 to 20 knots late in the afternoon. sunny. waves 1 to
2 feet building to 2 to 4 feet late in the afternoon. 
.monday night...south wind 15 to 25 knots becoming 15 to 20 knots
after midnight. mostly cloudy through around midnight then
becoming partly cloudy. waves 3 to 5 feet building to 4 to 6 feet
in the late evening and overnight. a small craft advisory may be
needed. 

$$

fzus53 kmkx 191610
nshmkx
expires:202604192200;;642569

nearshore marine forecast
national weather service milwaukee/sullivan wi
1110 am cdt sun apr 19 2026

for waters within five nautical miles of shore on lake michigan


lmz644-192200-
port washington to north point light wi-
1110 am cdt sun apr 19 2026

.rest of today...northwest wind 10 to 15 knots veering north late
in the afternoon. gusts up to 20 knots. scattered rain and snow
showers early in the afternoon. waves around 1 foot. 
.tonight...north wind 10 to 15 knots easing to 5 to 10 knots late
in the evening, then becoming northeast 10 to 15 knots after
midnight easing to 5 to 10 knots early in the morning. partly
cloudy. waves 1 to 2 feet. 
.monday...northwest wind 5 to 10 knots backing south late in the
morning, then rising to 10 to 15 knots early in the afternoon
rising to 15 to 20 knots late in the afternoon. sunny. waves 1 to
2 feet building to 2 to 4 feet late in the afternoon. 
.monday night...south wind 15 to 20 knots. partly cloudy. waves
3 to 4 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639859

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lsz246-192000-
point isabelle to lower entrance of portage canal mi-
1100 am edt sun apr 19 2026

...small craft advisory in effect until 2 pm edt this afternoon...

.rest of today...northwest wind 10 to 20 knots. mostly cloudy
with a chance of flurries by late morning, then mostly sunny with
a chance of snow showers late. waves 1 to 2 feet. 
.tonight...northwest wind 5 to 15 knots. mostly clear. a chance
of flurries through midnight. waves 1 to 2 feet. 
.monday...southwest wind less than 10 knots backing southeast
10 to 20 knots in the afternoon. mostly cloudy. waves building to
2 to 3 feet. 
.monday night...southwest wind 15 to 20 knots becoming 10 to
20 knots after midnight. gusts up to 27 knots. mostly cloudy in
the evening then clearing. waves building to 2 to 4 feet, then
subsiding to 1 to 2 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639860

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lsz247-192000-
lower entrance of portage canal to huron islands mi including
keweenaw and huron bays-
1100 am edt sun apr 19 2026

...small craft advisory in effect until 2 pm edt this afternoon...

.rest of today...northwest wind 15 to 20 knots. mostly cloudy by
late morning then becoming mostly sunny. a chance of flurries.
waves 2 to 4 feet subsiding to 2 to 3 feet. 
.tonight...northwest wind 10 to 15 knots diminishing to less than
10 knots late. mostly clear. a chance of flurries through
midnight. waves subsiding to 1 to 2 feet. 
.monday...southwest wind less than 10 knots backing south 5 to
15 knots in the afternoon. partly cloudy. waves calm to 1 foot. 
.monday night...southwest wind 10 to 20 knots. gusts up to
28 knots. mostly cloudy in the evening then clearing. waves
building to 2 to 3 feet, then subsiding to 1 to 2 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639861

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lsz248-192000-
huron islands to marquette mi-
1100 am edt sun apr 19 2026

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

.rest of today...northwest wind 15 to 25 knots. mostly cloudy
with a chance of flurries by late morning, then mostly sunny with
a chance of snow showers late. waves 3 to 6 feet occasionally to
8 feet subsiding to 3 to 5 feet occasionally to 7 feet. 
.tonight...northwest wind 10 to 20 knots diminishing to less than
10 knots late. mostly clear. a chance of flurries through
midnight. waves subsiding to 2 to 3 feet. 
.monday...southwest wind less than 10 knots backing southeast
10 to 15 knots with gusts up to 22 knots in the afternoon. mostly
sunny in the morning then becoming mostly cloudy. waves subsiding
to 1 to 2 feet. 
.monday night...south wind 15 to 25 knots veering southwest after
midnight. gale force gusts up to 34 knots. mostly cloudy in the
evening then becoming mostly clear. waves building to 2 to
4 feet, then subsiding to 1 to 2 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639862

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lsz249-192000-
marquette to munising mi-
1100 am edt sun apr 19 2026

...small craft advisory in effect through monday morning...

.rest of today...northwest wind 20 to 25 knots. partly cloudy
with a slight chance of snow showers. waves 5 to 8 feet
occasionally to 10 feet. 
.tonight...northwest wind 10 to 20 knots. partly cloudy with a
chance of snow showers. waves subsiding to 2 to 4 feet. 
.monday...west wind less than 10 knots backing south 10 to
20 knots in the afternoon. partly cloudy. waves subsiding to 1 to
2 feet, then building to 2 to 3 feet. 
.monday night...south wind 20 to 25 knots veering southwest 15 to
25 knots after midnight. gale force gusts up to 34 knots. mostly
cloudy in the evening then becoming partly cloudy. waves building
to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to
3 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639863

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lsz250-192000-
munising to grand marais mi-
1100 am edt sun apr 19 2026

...small craft advisory in effect through monday morning...

.rest of today...northwest wind 20 to 25 knots. mostly cloudy. a
chance of snow showers by late morning, then a slight chance of
snow showers late. waves 6 to 9 feet occasionally to 11 feet. 
.tonight...northwest wind 15 to 25 knots veering north 10 to
15 knots late. partly cloudy. a chance of snow showers through
midnight, then a chance of flurries late. waves subsiding to 2 to
4 feet. 
.monday...west wind less than 10 knots backing south 10 to
20 knots in the afternoon. partly cloudy. waves subsiding to 1 to
2 feet, then building to 2 to 3 feet. 
.monday night...south wind 15 to 25 knots with gale force gusts
up to 34 knots. mostly cloudy in the evening then becoming partly
cloudy. waves building to 2 to 4 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639864

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lsz251-192000-
grand marais to whitefish point mi-
1100 am edt sun apr 19 2026

...small craft advisory in effect through monday morning...

.rest of today...northwest wind 20 to 25 knots. mostly cloudy. a
chance of snow showers by late morning, then a slight chance of
snow showers late. waves 6 to 9 feet occasionally to 11 feet. 
.tonight...northwest wind 15 to 25 knots veering north 10 to
15 knots late. partly cloudy. a chance of snow showers through
late evening, then a chance of flurries by midnight. waves
subsiding to 2 to 4 feet. 
.monday...west wind less than 10 knots backing south 10 to
20 knots in the afternoon. partly cloudy. waves subsiding to 1 to
2 feet. 
.monday night...south wind 15 to 25 knots with gale force gusts
up to 34 knots. mostly cloudy. waves building to 2 to 4 feet,
then subsiding to 2 to 3 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639851

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lmz221-192000-
green bay north of line from cedar river mi to rock island
passage-
1100 am edt sun apr 19 2026

.rest of today...northwest wind 10 to 15 knots with gusts up to
22 knots. mostly cloudy. a chance of snow showers by late
morning, then a chance of sprinkles and flurries late. waves 1 to
2 feet building to 2 to 3 feet. 
.tonight...northwest wind 10 to 15 knots diminishing to less than
10 knots late. mostly clear. a chance of sprinkles through late
evening. a chance of flurries through the night. waves subsiding
to 1 to 2 feet. 
.monday...west wind less than 10 knots becoming south 15 to
25 knots in the afternoon. mostly sunny. waves building to 2 to
4 feet. 
.monday night...south wind 15 to 25 knots. mostly cloudy in the
evening then becoming partly cloudy. waves building to 3 to
5 feet occasionally to 7 feet, then subsiding to 2 to 3 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639853

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lmz248-192000-
seul choix point to point detour mi-
1100 am edt sun apr 19 2026

...small craft advisory in effect until 10 pm edt this evening...

.rest of today...northwest wind 15 to 20 knots. partly cloudy. a
chance of snow showers by late morning, then a chance of flurries
and sprinkles late. waves 1 to 2 feet building to 2 to 3 feet. 
.tonight...northwest wind 10 to 20 knots diminishing to less than
10 knots late. mostly clear. a chance of flurries. waves
subsiding to 1 to 2 feet. 
.monday...west wind 5 to 15 knots becoming south 15 to 25 knots
in the afternoon. partly cloudy. waves building to 2 to 4 feet. 
.monday night...south wind 15 to 25 knots with gusts up to
33 knots. mostly cloudy. waves building to 4 to 7 feet
occasionally to 9 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639854

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lsz240-192000-
saxon harbor wi to black river mi-
1100 am edt sun apr 19 2026 /1000 am cdt sun apr 19 2026/

.rest of today...northwest wind 5 to 15 knots. mostly sunny.
waves 2 to 4 feet subsiding to 1 to 2 feet. 
.tonight...northwest wind less than 10 knots veering north by
midnight, then becoming variable late. clear. waves 1 to 2 feet. 
.monday...southwest wind 5 to 15 knots. gusts up to 24 knots in
the afternoon. mostly cloudy. waves building to 1 to 2 feet. 
.monday night...southwest wind 15 to 20 knots diminishing to 5 to
15 knots after midnight. partly cloudy in the evening then
clearing. waves 1 to 2 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639852

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lmz250-192000-
5nm east of a line from fairport mi to rock island passage-
1100 am edt sun apr 19 2026

.rest of today...northwest wind 10 to 20 knots. partly cloudy
with a chance of sprinkles and snow showers. waves 1 to 2 feet. 
.tonight...north wind 10 to 20 knots backing northwest less than
10 knots late. mostly clear. a chance of flurries and sprinkles
through late evening. a chance of flurries late. waves building
to 2 to 3 feet, then subsiding to 1 to 2 feet. 
.monday...west wind less than 10 knots becoming south 15 to
25 knots in the afternoon. mostly sunny. waves building to 2 to
4 feet. 
.monday night...south wind 15 to 25 knots. cloudy in the evening
then becoming partly cloudy. waves building to 4 to 7 feet
occasionally to 9 feet, then subsiding to 3 to 6 feet
occasionally to 8 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639855

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lsz241-192000-
black river to ontonagon mi-
1100 am edt sun apr 19 2026 /1000 am cdt sun apr 19 2026/

...small craft advisory in effect until 4 pm edt /3 pm cdt/ this
afternoon...

.rest of today...northwest wind 10 to 20 knots. mostly sunny.
waves 3 to 5 feet occasionally to 7 feet subsiding to 1 to
2 feet. 
.tonight...northwest wind less than 10 knots veering north 10 to
15 knots by midnight, then backing northwest less than 10 knots
late. clear. waves building to 2 to 3 feet, then subsiding to
1 to 2 feet. 
.monday...southwest wind 5 to 15 knots. gusts up to 23 knots in
the afternoon. mostly cloudy. waves 1 to 2 feet. 
.monday night...southwest wind 15 to 20 knots becoming 10 to
20 knots after midnight. partly cloudy in the evening then
clearing. waves building to 2 to 3 feet, then subsiding to 1 to
2 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639856

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lsz242-243-192000-
ontonagon to upper entrance of portage canal mi-
upper entrance of portage canal to eagle river mi-
1100 am edt sun apr 19 2026

...small craft advisory in effect until 4 pm edt this afternoon...

.rest of today...northwest wind 10 to 20 knots. mostly cloudy
with a chance of flurries by late morning, then mostly sunny with
a chance of snow showers late. waves 3 to 5 feet occasionally to
7 feet subsiding to 2 to 3 feet. 
.tonight...northwest wind 10 to 20 knots diminishing to less than
10 knots late. mostly clear. a chance of flurries through
midnight. waves subsiding to 1 to 2 feet. 
.monday...southwest wind 5 to 15 knots. mostly cloudy. waves 1 to
2 feet. 
.monday night...southwest wind 15 to 20 knots becoming 10 to
20 knots after midnight. mostly cloudy in the evening then
clearing. waves building to 2 to 4 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639858

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lsz244-192000-
eagle river to manitou island mi-
1100 am edt sun apr 19 2026

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

.rest of today...northwest wind 15 to 20 knots. partly cloudy. a
chance of flurries by late morning, then a chance of snow showers
late. waves 3 to 6 feet occasionally to 8 feet subsiding to 2 to
4 feet. 
.tonight...northwest wind 5 to 15 knots. partly cloudy. a chance
of flurries through the night. waves subsiding to 1 to 2 feet. 
.monday...southwest wind 5 to 15 knots backing south 10 to
20 knots in the afternoon. mostly cloudy. waves building to 2 to
4 feet. 
.monday night...south wind 10 to 20 knots veering southwest after
midnight. mostly cloudy in the evening then clearing. waves
subsiding to 2 to 3 feet. 

$$

fzus53 kmqt 191501
nshmqt
expires:202604192000;;639857

nearshore marine forecast
national weather service marquette mi
1100 am edt sun apr 19 2026

for waters within five nautical miles of shore

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.


lsz245-192000-
manitou island to point isabelle mi-
1100 am edt sun apr 19 2026

...small craft advisory in effect until 5 pm edt this afternoon...

.rest of today...northwest wind 15 to 20 knots. partly cloudy
with a chance of snow showers. waves 3 to 5 feet occasionally to
7 feet subsiding to 2 to 4 feet. 
.tonight...northwest wind 5 to 15 knots. partly cloudy. a chance
of flurries through the night. waves subsiding to 1 to 2 feet. 
.monday...southwest wind 5 to 15 knots backing south 10 to
20 knots in the afternoon. mostly cloudy. waves building to 2 to
4 feet. 
.monday night...south wind 15 to 20 knots veering southwest 10 to
20 knots after midnight. mostly cloudy in the evening then
clearing. waves building to 3 to 5 feet occasionally to 7 feet,
then subsiding to 2 to 3 feet. 

$$