fzus52 kkey 180228
cwfkey
expires:202509181430;;166702

coastal waters forecast for the florida keys
national weather service key west fl
1028 pm edt wed sep 17 2025

florida bay, hawk channel and straits of florida from ocean reef
to south of dry tortugas, and the extreme southeastern gulf of
america, including the florida keys national marine sanctuary

seas are given as significant wave height, which is the average
height of the highest 1/3 of the waves. individual waves may be
more than twice the significant wave height.

wave detail will include details about the period and direction
of origin for the highest energy waves. long-period swells coming
from a different direction than the wind would be included in the
wave detail.


gmz031-181430-
florida bay including barnes sound, blackwater sound, and
buttonwood sound-
1028 pm edt wed sep 17 2025

.overnight...northeast to east winds near 15 knots. bay waters a 
moderate chop. scattered showers and isolated thunderstorms, then 
widespread showers and scattered thunderstorms after midnight. 
.thursday...northeast to east winds decreasing to near 10 knots. 
bay waters becoming a light chop. widespread showers and isolated
thunderstorms. 
.thursday night...northeast winds near 10 knots, decreasing to 5 
to 10 knots. bay waters a light chop, becoming a smooth to a 
light chop. numerous showers and isolated thunderstorms. 
.friday...north to northeast winds 5 to 10 knots. bay waters
smooth to a light chop. numerous showers and isolated 
thunderstorms. 
.friday night...north to northeast winds near 10 knots. bay
waters a light chop. scattered showers and isolated 
thunderstorms. .saturday..north to northeast winds 5 to 10 knots. 
bay waters smooth to a light chop. scattered showers and isolated 
thunderstorms. 
.saturday night...north to northeast winds 5 to 10 knots. bay 
waters smooth to a light chop. scattered showers and isolated 
thunderstorms. 
.sunday and sunday night...north to northeast winds 5 to 10 
knots. bay waters smooth to a light chop. scattered showers and 
isolated thunderstorms. 
.monday and monday night...south to southwest winds near 5 knots.
bay waters smooth. scattered showers and isolated thunderstorms.

$$

fzus52 kkey 180228
cwfkey
expires:202509181430;;166706

coastal waters forecast for the florida keys
national weather service key west fl
1028 pm edt wed sep 17 2025

florida bay, hawk channel and straits of florida from ocean reef
to south of dry tortugas, and the extreme southeastern gulf of
america, including the florida keys national marine sanctuary

seas are given as significant wave height, which is the average
height of the highest 1/3 of the waves. individual waves may be
more than twice the significant wave height.

wave detail will include details about the period and direction
of origin for the highest energy waves. long-period swells coming
from a different direction than the wind would be included in the
wave detail.


gmz033-034-181430-
gulf of america from east cape sable to chokoloskee 20 to 60 nm
out and beyond 5 fathoms-
gulf of america including dry tortugas and rebecca shoal channel-
1028 pm edt wed sep 17 2025

.overnight...east winds near 15 knots. seas around 2 feet. wave 
detail: northeast to east 2 feet at 4 seconds. scattered showers 
and isolated thunderstorms, then widespread showers and scattered 
thunderstorms after midnight.
.thursday...northeast to east winds decreasing 10 to 15 knots. 
seas subsiding to 1 to 2 feet. wave detail: northeast to east 2 
feet at 4 seconds. widespread showers and isolated thunderstorms. 
.thursday night...northeast to east winds 10 to 15 knots. seas
1 to 2 feet. wave detail: northeast to east 2 feet at 4 seconds. 
numerous showers and isolated thunderstorms.
.friday...north to northeast winds near 10 knots. seas 1 to
2 feet. scattered showers and isolated thunderstorms. 
.friday night...northeast winds 10 to 15 knots. seas 1 to 2 feet.
scattered showers and isolated thunderstorms. 
.saturday...north to northeast winds near 10 knots. seas 1 to 2 
feet. scattered showers and isolated thunderstorms.
.saturday night and sunday...north to northeast winds near 10 
knots. seas 1 to 2 feet. scattered showers and isolated 
thunderstorms.
.sunday night...variable winds 5 to 10 knots. seas around 1 foot.
scattered showers and isolated thunderstorms. 
.monday...south winds near 5 knots, becoming southwest to west. 
seas 1 foot or less. scattered showers and isolated thunderstorms.
.monday night...west to northwest winds near 5 knots, becoming
southeast to south. seas 1 foot or less. scattered showers and 
isolated thunderstorms. 

$$

fzus52 kkey 180228
cwfkey
expires:202509181430;;166703

coastal waters forecast for the florida keys
national weather service key west fl
1028 pm edt wed sep 17 2025

florida bay, hawk channel and straits of florida from ocean reef
to south of dry tortugas, and the extreme southeastern gulf of
america, including the florida keys national marine sanctuary

seas are given as significant wave height, which is the average
height of the highest 1/3 of the waves. individual waves may be
more than twice the significant wave height.

wave detail will include details about the period and direction
of origin for the highest energy waves. long-period swells coming
from a different direction than the wind would be included in the
wave detail.


gmz032-035-181430-
bayside and gulfside from craig key to west end of seven mile
bridge-
gulf of america from west end of seven mile bridge to halfmoon
shoal out to 5 fathoms-
1028 pm edt wed sep 17 2025

.overnight...east winds near 15 knots. seas 1 to 2 feet. 
nearshore waters a moderate chop. scattered showers and isolated 
thunderstorms, then widespread showers and scattered thunderstorms
after midnight. 
.thursday...northeast to east winds decreasing to 10 to 15 knots.
seas 1 to 2 feet. nearshore waters becoming a light to moderate 
chop. widespread showers and isolated thunderstorms. 
.thursday night...northeast to east winds near 10 knots. seas
1 to 2 feet, subsiding to around 1 foot. nearshore waters a light
chop. numerous showers and isolated thunderstorms. 
.friday...north to northeast winds near 10 knots. seas around 1
foot. nearshore waters a light chop. numerous showers and 
isolated thunderstorms. 
.friday night...north to northeast winds near 10 knots. seas
around 1 foot. nearshore waters a light chop. scattered showers 
and isolated thunderstorms. 
.saturday...northeast winds 5 to 10 knots. seas around 1 foot. 
nearshore waters smooth to a light chop. scattered showers and 
isolated thunderstorms.
.saturday night and sunday...northeast winds 5 to 10 knots. seas 
around 1 foot. nearshore waters smooth to a light chop. scattered 
showers and isolated thunderstorms.
.sunday night...variable winds 5 to 10 knots. seas around 1 foot.
nearshore waters smooth to a light chop. scattered showers and 
isolated thunderstorms. 
.monday...south to southwest winds near 5 knots. seas 1 foot or 
less. nearshore waters smooth. scattered showers and isolated 
thunderstorms. 
.monday night...southwest to west winds near 5 knots, becoming
southeast to south. seas 1 foot or less. nearshore waters smooth.
scattered showers and isolated thunderstorms.  

$$

fzus52 kkey 180228
cwfkey
expires:202509181430;;166705

coastal waters forecast for the florida keys
national weather service key west fl
1028 pm edt wed sep 17 2025

florida bay, hawk channel and straits of florida from ocean reef
to south of dry tortugas, and the extreme southeastern gulf of
america, including the florida keys national marine sanctuary

seas are given as significant wave height, which is the average
height of the highest 1/3 of the waves. individual waves may be
more than twice the significant wave height.

wave detail will include details about the period and direction
of origin for the highest energy waves. long-period swells coming
from a different direction than the wind would be included in the
wave detail.


gmz052>055-072>075-181430-
straits of florida from ocean reef to craig key out 20 nm-
straits of florida from craig key to west end of seven mile
bridge out 20 nm-
straits of florida from west end of seven mile bridge to south of
halfmoon shoal out 20 nm-
straits of florida from halfmoon shoal to 20 nm west of dry
tortugas out 20 nm-
straits of florida from ocean reef to craig key 20 to 60 nm out-
straits of florida from craig key to west end of seven mile
bridge 20 to 60 nm out-
straits of florida from west end of seven mile bridge to south of
halfmoon shoal 20 to 60 nm out-
straits of florida from halfmoon shoal to 20 nm west of dry
tortugas 20 to 60 nm out-
1028 pm edt wed sep 17 2025

...small craft should exercise caution...

.overnight...northeast to east winds 15 to 20 knots. seas 3 to 4 
feet, occasionally to 5 feet. wave detail: northeast to east 4 
feet at 5 seconds. winds and seas higher in and around numerous 
showers and isolated thunderstorms, then widespread showers and 
scattered thunderstorms after midnight.
.thursday...northeast to east winds decreasing to 10 to 15 knots.
seas 2 to 4 feet, occasionally to 5 feet, subsiding to 2 to 3 feet.
wave detail: east 3 feet at 6 seconds. widespread showers and 
isolated thunderstorms.
.thursday night...northeast to east winds 10 to 15 knots,
decreasing to near 10 knots. seas 2 to 3 feet, subsiding to 1 to 2
feet. wave detail: northeast to east 3 feet at 5 seconds. numerous
showers and isolated thunderstorms. 
.friday...north to northeast winds near 10 knots. seas 1 to 2 
feet. numerous showers and isolated thunderstorms. 
.friday night...northeast winds near 10 knots. seas 1 to 2 feet.
scattered showers and isolated thunderstorms. 
.saturday...north to northeast winds near 10 knots. seas 1 to 2 
feet. scattered showers and isolated thunderstorms.
.saturday night and sunday...north to northeast winds near 10 
knots. seas 1 to 2 feet. scattered showers and isolated 
thunderstorms.
.sunday night...variable winds 5 to 10 knots. seas 1 to 2 feet. 
scattered showers and isolated thunderstorms. 
.monday...south to southwest winds 5 to 10 knots, becoming west
in the afternoon. seas 1 foot or less. scattered showers and
isolated thunderstorms. 
.monday night...east winds near 5 knots, becoming southeast to
south. seas 1 foot or less. scattered showers and isolated 
thunderstorms. 

$$

fzus52 kmfl 180451
cwfmfl
expires:202509181700;;171239

coastal waters forecast for florida
national weather service miami fl
1251 am edt thu sep 18 2025

atlantic coastal waters from jupiter inlet to ocean reef out to
60 nm and gulf coastal waters from east cape sable to chokoloskee
out 20 nm and chokoloskee to bonita beach out 60 nm...including the
waters of biscayne bay and lake okeechobee.

seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves. 


amz610-181700-
lake okeechobee-
1251 am edt thu sep 18 2025

.today...ne winds 5 to 10 kt. lake waters light chop. a slight
chance of showers and tstms early this morning, then a chance of
showers and tstms late this morning. showers and tstms likely this
afternoon. 
.tonight...ne winds 5 to 10 kt. lake waters light chop. a chance of
showers and tstms in the evening. 
.fri...n winds 10 to 15 kt. lake waters a moderate chop. a chance of
showers. a chance of tstms in the afternoon. 
.fri night...ne winds 10 to 15 kt with gusts up to 20 kt,
diminishing to 5 to 10 kt after midnight. lake waters a moderate
chop. a chance of showers and tstms in the evening.
.sat and sat night...ne winds around 10 kt. lake waters light chop.
a chance of showers and tstms. 
.sun through mon...se winds 5 to 10 kt. lake waters light chop. a
chance of showers and tstms.  

winds and waves higher in and near tstms.

$$

fzus52 kmfl 180451
cwfmfl
expires:202509181700;;171240

coastal waters forecast for florida
national weather service miami fl
1251 am edt thu sep 18 2025

atlantic coastal waters from jupiter inlet to ocean reef out to
60 nm and gulf coastal waters from east cape sable to chokoloskee
out 20 nm and chokoloskee to bonita beach out 60 nm...including the
waters of biscayne bay and lake okeechobee.

seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves. 


amz630-181700-
biscayne bay-
1251 am edt thu sep 18 2025

.today...e winds around 10 kt, becoming ne this afternoon. light
chop. showers and tstms. 
.tonight...ne winds 5 to 10 kt. light chop. showers likely. tstms
likely, mainly in the evening. 
.fri...n winds 5 to 10 kt, becoming ne in the afternoon. light chop.
showers likely. a chance of tstms in the morning, then tstms likely
in the afternoon. 
.fri night...ne winds around 10 kt. light chop. a chance of tstms.
showers likely, mainly in the evening. 
.sat...ne winds around 10 kt. light chop. showers likely. a chance
of tstms in the morning, then tstms likely in the afternoon. 
.sat night...ne winds 5 to 10 kt. light chop. a chance of tstms.
showers likely, mainly in the evening. 
.sun...e winds 5 to 10 kt. light chop. a chance of showers and tstms
in the morning, then showers and tstms likely through the night. a
chance of showers and tstms after midnight. 
.mon...se winds 5 to 10 kt. light chop. a chance of showers and
tstms.  

winds and waves higher in and near tstms.

$$

fzus52 kmfl 180451
cwfmfl
expires:202509181700;;171236

coastal waters forecast for florida
national weather service miami fl
1251 am edt thu sep 18 2025

atlantic coastal waters from jupiter inlet to ocean reef out to
60 nm and gulf coastal waters from east cape sable to chokoloskee
out 20 nm and chokoloskee to bonita beach out 60 nm...including the
waters of biscayne bay and lake okeechobee.

seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves. 


amz650-670-181700-
coastal waters from jupiter inlet to deerfield beach fl out 20 nm-
waters from jupiter inlet to deerfield beach fl from 20 to 60 nm-
1251 am edt thu sep 18 2025

.today...e winds around 10 kt, becoming ne this afternoon. seas 2 to
3 ft. wave detail: ne 3 ft at 5 seconds and ne 2 ft at 8 seconds.
intracoastal waters light chop. showers with tstms likely. 
.tonight...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: e 3 ft
at 5 seconds and nw 1 foot at 8 seconds. intracoastal waters a
moderate chop. showers with tstms likely. 
.fri...ne winds 10 to 15 kt. seas 2 to 3 ft. wave detail: ne 3 ft at
4 seconds and ne 2 ft at 8 seconds. intracoastal waters a moderate
chop. showers with a chance of tstms in the morning, then showers
and tstms likely in the afternoon. 
.fri night...ne winds around 10 kt. seas 2 to 3 ft. wave detail: ne
3 ft at 5 seconds. intracoastal waters light chop. showers likely
with a chance of tstms. 
.sat and sat night...e winds around 10 kt. seas 2 to 3 ft. wave
detail: n 3 ft at 5 seconds. intracoastal waters light chop. showers
likely with a chance of tstms. 
.sun...e winds around 10 kt. seas 2 to 3 ft. wave detail: e 2 ft at
4 seconds and n 2 ft at 6 seconds. intracoastal waters light chop. a
chance of tstms. showers likely . 
.mon...se winds 5 to 10 kt. seas 2 to 3 ft. intracoastal waters
light chop. a chance of showers and tstms.  

winds and seas higher in and near tstms.

$$

fzus52 kmfl 180451
cwfmfl
expires:202509181700;;171237

coastal waters forecast for florida
national weather service miami fl
1251 am edt thu sep 18 2025

atlantic coastal waters from jupiter inlet to ocean reef out to
60 nm and gulf coastal waters from east cape sable to chokoloskee
out 20 nm and chokoloskee to bonita beach out 60 nm...including the
waters of biscayne bay and lake okeechobee.

seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves. 


amz651-671-181700-
coastal waters from deerfield beach to ocean reef fl out 20 nm-
waters from deerfield beach to ocean reef fl from 20 to 60 nm
excluding the territorial waters of bahamas-
1251 am edt thu sep 18 2025

.today...e winds 10 to 15 kt, becoming ne this afternoon. seas 2 to
3 ft. wave detail: e 3 ft at 4 seconds and n 2 ft at 9 seconds.
intracoastal waters a moderate chop. showers, tstms.
.tonight...e winds 10 to 15 kt. seas 2 to 3 ft. wave detail: e 2 ft
at 4 seconds and n 1 foot at 8 seconds. intracoastal waters a
moderate chop. showers. tstms likely, mainly in the evening. 
.fri...ne winds 5 to 10 kt. seas around 2 ft. wave detail: e 2 ft at
4 seconds and n 1 foot at 8 seconds. intracoastal waters light chop.
showers with a chance of tstms. 
.fri night...ne winds around 10 kt. seas around 2 ft. wave detail:
ne 2 ft at 4 seconds. intracoastal waters light chop. showers likely
with a chance of tstms. 
.sat and sat night...e winds around 10 kt. seas 2 to 3 ft. wave
detail: ne 3 ft at 5 seconds. intracoastal waters light chop.
showers likely with a chance of tstms. 
.sun...e winds 5 to 10 kt. seas 2 to 3 ft. wave detail: e 2 ft at
5 seconds. intracoastal waters light chop. showers likely with a
chance of tstms. 
.sun through mon...se winds 5 to 10 kt. seas 2 to 3 ft. intracoastal
waters light chop. a chance of showers and tstms.  

winds and seas higher in and near tstms.

$$

fzus52 kmfl 180451
cwfmfl
expires:202509181700;;171238

coastal waters forecast for florida
national weather service miami fl
1251 am edt thu sep 18 2025

atlantic coastal waters from jupiter inlet to ocean reef out to
60 nm and gulf coastal waters from east cape sable to chokoloskee
out 20 nm and chokoloskee to bonita beach out 60 nm...including the
waters of biscayne bay and lake okeechobee.

seas are provided as a range of the average height of the highest
1/3 of the waves...along with the occasional height of the average
highest 10 percent of the waves. 


gmz656-657-676-181700-
coastal waters from chokoloskee to bonita beach fl out 20 nm-
coastal waters from east cape sable to chokoloskee fl out 20 nm-
waters from chokoloskee to bonita beach fl from 20 to 60 nm-
1251 am edt thu sep 18 2025

.today...ne winds around 10 kt. seas around 2 ft. wave detail: e
2 ft at 3 seconds. bay and inland waters light chop. a chance of
tstms this morning. showers likely. tstms likely this afternoon. 
.tonight...ne winds 10 to 15 kt. seas around 2 ft. wave detail: ne
2 ft at 3 seconds. bay and inland waters light chop. a chance of
showers and tstms. 
.fri...ne winds 5 to 10 kt. seas around 2 ft. wave detail: ne 2 ft
at 3 seconds. bay and inland waters light chop. a chance of showers
and tstms. 
.fri night...ne winds 10 to 15 kt. seas around 2 ft. wave detail: ne
2 ft at 3 seconds. bay and inland waters light chop. a chance of
tstms in the evening. a chance of showers. 
.sat...ne winds 10 to 15 kt, becoming n 5 to 10 kt in the afternoon.
seas around 2 ft. wave detail: ne 2 ft at 3 seconds. bay and inland
waters light chop. a chance of showers. a chance of tstms in the
afternoon. 
.sat night...ne winds 10 to 15 kt. seas around 2 ft. wave detail: n
2 ft at 4 seconds. bay and inland waters light chop. a chance of
showers and tstms. 
.sun through mon...se winds 5 to 10 kt. seas 1 to 2 ft. bay and
inland waters light chop. a chance of showers and tstms.  

winds and seas higher in and near tstms.

$$

fzus52 kmlb 180618
cwfmlb
expires:202509182100;;176408

coastal waters forecast for east central florida
national weather service melbourne fl
218 am edt thu sep 18 2025

atlantic coastal waters from flagler beach to jupiter inlet out 60 nm.

seas are provided as a range of the average height of the highest
one third of the waves, along with the occasional height of the 
average highest ten percent of the waves.


amz555-182100-
sebastian inlet to jupiter inlet 0-20 nm-
218 am edt thu sep 18 2025

.today...northeast winds 5 to 10 knots. seas 2 to 3 feet. wave
detail: northeast 3 feet at 8 seconds and east 2 feet at
4 seconds. a light chop on the intracoastal waters. showers and
thunderstorms likely. 
.tonight...east winds around 10 knots. seas 3 feet. wave detail:
northeast 3 feet at 9 seconds and east 2 feet at 5 seconds.
mostly smooth on the intracoastal waters. a chance of
thunderstorms. a chance of showers in the evening, then showers
likely after midnight. 
.friday...northeast winds 10 to 15 knots. seas 3 feet. wave
detail: northeast 3 feet at 8 seconds. a moderate chop on the
intracoastal waters. showers likely with a chance of
thunderstorms. 
.friday night...northeast winds 10 to 15 knots. seas 3 feet. wave
detail: northeast 3 feet at 8 seconds. a light chop on the
intracoastal waters. a chance of showers and thunderstorms in the
evening, then showers likely with a slight chance of
thunderstorms after midnight. 
.saturday...northeast winds 10 to 15 knots. seas 3 feet. wave
detail: northeast 3 feet at 8 seconds. a moderate chop on the
intracoastal waters. showers likely. a chance of thunderstorms in
the morning, then thunderstorms likely in the afternoon. 
.saturday night...northeast winds 10 to 15 knots. seas 3 feet.
wave detail: northeast 3 feet at 8 seconds. a light chop on the
intracoastal waters. a chance of showers and thunderstorms. 
.sunday...east winds around 10 knots. seas 3 feet. a light chop
on the intracoastal waters. a chance of showers and
thunderstorms. 
.sunday night...east winds 5 to 10 knots. seas 3 feet. mostly
smooth on the intracoastal waters. a chance of showers. a chance
of thunderstorms in the evening, then a slight chance of
thunderstorms after midnight. 
.monday...east winds 5 to 10 knots. seas 3 feet. a light chop on
the intracoastal waters. a chance of showers and thunderstorms. 
.monday night...east winds 5 to 10 knots, becoming south after
midnight. seas 3 feet. mostly smooth on the intracoastal waters.
a chance of showers and thunderstorms. 

winds and waves higher in and near thunderstorms.

$$

fzus52 kmlb 180618
cwfmlb
expires:202509182100;;176411

coastal waters forecast for east central florida
national weather service melbourne fl
218 am edt thu sep 18 2025

atlantic coastal waters from flagler beach to jupiter inlet out 60 nm.

seas are provided as a range of the average height of the highest
one third of the waves, along with the occasional height of the 
average highest ten percent of the waves.


amz575-182100-
sebastian inlet to jupiter inlet 20-60 nm-
218 am edt thu sep 18 2025

.today...east winds 10 to 15 knots. seas 3 to 4 feet. wave
detail: east 3 feet at 4 seconds and northeast 3 feet at
8 seconds. showers and thunderstorms likely. 
.tonight...east winds around 10 knots. seas 3 to 4 feet. wave
detail: northeast 3 feet at 9 seconds and southeast 2 feet at
5 seconds. showers and thunderstorms likely in the evening, then
a chance of showers and thunderstorms after midnight. 
.friday...northeast winds 10 to 15 knots. seas 3 to 4 feet. wave
detail: north 4 feet at 7 seconds and south 1 foot at 4 seconds.
showers likely with a chance of thunderstorms. 
.friday night...northeast winds 10 to 15 knots. seas 3 to 4 feet.
wave detail: northeast 4 feet at 8 seconds and northwest 2 feet
at 5 seconds. showers likely with a chance of thunderstorms. 
.saturday...northeast winds 10 to 15 knots. seas 3 to 4 feet.
wave detail: northeast 4 feet at 8 seconds and northwest 2 feet
at 5 seconds. showers likely with a chance of thunderstorms. 
.saturday night...east winds 10 to 15 knots. seas 3 to 4 feet.
wave detail: northeast 4 feet at 8 seconds and north 2 feet at
5 seconds. showers likely with a chance of thunderstorms. 
.sunday...east winds around 10 knots. seas 3 to 4 feet. a chance
of thunderstorms. showers likely in the morning, then a chance of
showers in the afternoon. 
.sunday night...east winds 5 to 10 knots. seas 3 to 5 feet,
occasionally to 6 feet. showers likely with a chance of
thunderstorms. 
.monday...east winds 5 to 10 knots. seas 3 to 5 feet,
occasionally to 6 feet. a chance of showers and thunderstorms. 
.monday night...east winds 5 to 10 knots, becoming southeast
after midnight. seas 3 to 5 feet, occasionally to 6 feet. a
chance of showers and thunderstorms. 

winds and seas higher in and near thunderstorms.

$$

fzus52 ktbw 180640
cwftbw
expires:202509181945;;176808

coastal waters forecast for florida
national weather service tampa bay ruskin fl
240 am edt thu sep 18 2025

gulf coastal waters from bonita beach to the mouth of the
suwannee river out to 60 nm.

important notice to mariners...marine forecasts are issued at
least four times a day. boaters on extended trips should
routinely monitor subsequent forecast issuances and updates for
the latest marine weather information.

the wave heights are forecast as significant wave height which is
the average of the highest one-third of the waves. the highest
waves may rarely be twice the significant wave height. the winds
and seas near thunderstorms may be higher than forecast.


gmz856-181945-
coastal waters from bonita beach to englewood fl out 20 nm-
240 am edt thu sep 18 2025

.today...northeast winds 5 to 10 knots. seas around 2 feet this
morning, then 1 foot or less. wave detail: east 1 foot at
2 seconds and southwest 1 foot at 5 seconds. bay and inland
waters light chop. scattered showers. a chance of thunderstorms
early this morning, then isolated thunderstorms late this morning
and afternoon. 
.tonight...northeast winds 10 to 15 knots. seas 1 foot or less,
then around 2 feet after midnight. wave detail: northeast 1 foot
at 3 seconds, becoming east 1 foot at 3 seconds. bay and inland
waters a moderate chop. scattered showers with isolated
thunderstorms in the evening. 
.friday...northeast winds around 10 knots. seas around 2 feet in
the morning, then 1 foot or less. wave detail: northeast 1 foot
at 3 seconds, becoming north 1 foot at 3 seconds. bay and inland
waters light chop. isolated thunderstorms. isolated showers in
the morning, then scattered showers in the afternoon. 
.friday night...northeast winds 10 to 15 knots. seas around
2 feet. wave detail: north 2 feet at 3 seconds. bay and inland
waters a moderate chop. isolated thunderstorms. scattered
showers, mainly in the evening. 
.saturday...northeast winds 10 to 15 knots. seas around 2 feet.
wave detail: north 1 foot at 4 seconds. bay and inland waters a
moderate chop. scattered showers with isolated thunderstorms in
the afternoon. 
.saturday night...northeast winds 10 to 15 knots. seas around
2 feet in the evening, then 1 foot or less. wave detail: north
1 foot at 3 seconds, becoming north 1 foot at 4 seconds. bay and
inland waters a moderate chop. isolated thunderstorms. scattered
showers, mainly in the evening. 
.sunday...northeast winds 10 to 15 knots, becoming north 5 to
10 knots in the afternoon. seas 1 foot or less. bay and inland
waters a moderate chop. isolated thunderstorms. isolated showers
in the morning, then scattered showers in the afternoon. 
.sunday night...north winds around 10 knots, becoming east after
midnight. seas 1 foot or less. bay and inland waters light chop.
scattered showers with isolated thunderstorms. 
.monday...east winds 5 to 10 knots, becoming southwest in the
afternoon. seas 1 foot or less. bay and inland waters light chop.
scattered showers with isolated thunderstorms. 

winds and seas higher in and near thunderstorms.

$$