Coastal Waters Forecast
Issued by NWS Tampa Bay Area, FL

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FZUS52 KTBW 210833
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Area - Ruskin FL
333 AM EST Tue Nov 21 2017

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.

GMZ800-211530-
SYNOPSIS FOR THE COASTAL WATERS FROM BONITA BEACH TO SUWANNEE RIVER-
333 AM EST Tue Nov 21 2017

.SYNOPSIS...High pressure offshore the Mid Atlantic coast early
this morning will move further to the east over the Atlantic today
as an upper level disturbance over the Gulf moves east across the
peninsula through tonight as a stalled frontal boundary across the
Florida Straits lifts back to the north as a warm front. Increasing
moisture combined with the trough and warm front will support
numerous showers and isolated thunderstorms over the Gulf waters
today. On Wednesday an area of low pressure will develop over the
Gulf. This low will then move east northeast across the northern
Florida peninsula during Thursday and Thursday night and into the
Atlantic on Friday. Sufficient moisture combined with this storm
system will continue to support scattered to numerous showers and
isolated thunderstorms over the waters through Friday. Pleasant dry
weather will return to the waters on Saturday as high pressure builds
in over the region.

$$

GMZ830-211530-
Tampa Bay waters-
333 AM EST Tue Nov 21 2017

.TODAY...Southeast winds around 10 knots. Bay and inland waters a
light chop. A chance of showers in the morning, then showers
likely with a slight chance of thunderstorms in the afternoon.
.TONIGHT...East winds around 5 knots. Bay and inland waters smooth.
A chance of showers in the evening, then a slight chance of showers
after midnight.
.WEDNESDAY...East winds around 5 knots then becoming north in the
afternoon. Bay and inland waters smooth. A slight chance of showers
in the morning, then a chance of showers and a slight chance of
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds around 5 knots then becoming east
around 10 knots toward morning. Bay and inland waters a light chop.
A chance of showers and a slight chance of thunderstorms after
midnight.
.THURSDAY...Southeast winds around 10 knots then becoming west
around 5 knots late in the afternoon. Bay and inland waters a light
chop. A chance of showers and a slight chance of thunderstorms.
.THURSDAY NIGHT...North winds around 5 knots then becoming northeast
around 10 knots after midnight. Bay and inland waters a light chop.
Showers likely and a slight chance of thunderstorms.
.FRIDAY...Northeast winds around 10 knots. Bay and inland waters a
light chop. A chance of showers and a slight chance of
thunderstorms.
.FRIDAY NIGHT...North winds around 10 knots. Bay and inland waters a
light chop. A slight chance of thunderstorms.
.SATURDAY...Northwest winds around 10 knots. Bay and inland waters a
light chop.

$$

GMZ836-211530-
Charlotte Harbor and Pine Island Sound-
333 AM EST Tue Nov 21 2017

.TODAY...East winds around 10 knots then becoming south in the
afternoon. Bay and inland waters a light chop. A chance of showers
and a slight chance of thunderstorms.
.TONIGHT...South winds around 5 knots then becoming north around
5 knots late in the evening, then becoming northeast around 5 knots
after midnight. Bay and inland waters smooth. A slight chance of
showers.
.WEDNESDAY...East winds around 5 knots then becoming northwest
around 5 knots late in the afternoon. Bay and inland waters smooth.
A slight chance of showers in the morning, then a chance of showers
and a slight chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northwest winds around 5 knots then becoming
northeast in the late evening and early morning, then becoming east
toward morning. Bay and inland waters smooth. A slight chance of
thunderstorms.
.THURSDAY...Southeast winds around 5 knots then becoming southwest
in the afternoon. Bay and inland waters smooth. A chance of showers
and a slight chance of thunderstorms.
.THURSDAY NIGHT...West winds around 5 knots then becoming northwest
late in the evening, then becoming southeast around 5 knots after
midnight then becoming northeast around 5 knots toward morning. Bay
and inland waters smooth. Showers likely and a slight chance of
thunderstorms.
.FRIDAY...North winds around 5 knots. Bay and inland waters smooth.
A chance of showers and a slight chance of thunderstorms.
.FRIDAY NIGHT...North winds around 5 knots. Bay and inland waters
smooth. A slight chance of thunderstorms.
.SATURDAY...Northwest winds around 10 knots. Bay and inland waters a
light chop.

$$

GMZ856-211530-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
333 AM EST Tue Nov 21 2017

.TODAY...East winds 10 to 15 knots then becoming south 5 to 10 knots
in the afternoon. Seas 2 to 3 feet. Bay and inland waters a moderate
chop. A chance of showers and a slight chance of thunderstorms.
.TONIGHT...South winds around 5 knots then becoming northeast in the
late evening and overnight. Seas 2 feet or less. Bay and inland
waters smooth. A slight chance of showers.
.WEDNESDAY...East winds around 5 knots then becoming northwest
around 5 knots late in the afternoon. Seas 2 feet or less. Bay and
inland waters smooth. A slight chance of showers in the morning,
then a chance of showers and a slight chance of thunderstorms in the
afternoon.
.WEDNESDAY NIGHT...North winds around 5 knots then becoming east
around 10 knots toward morning. Seas 2 feet or less. Bay and inland
waters a light chop. A slight chance of thunderstorms.
.THURSDAY...Southeast winds around 10 knots then becoming southwest
in the afternoon. Seas 2 feet. Bay and inland waters a light chop. A
chance of showers and a slight chance of thunderstorms.
.THURSDAY NIGHT...West winds around 5 knots then becoming southeast
after midnight, then becoming east around 10 knots toward morning.
Seas 2 feet. Bay and inland waters a light chop. Showers likely and
a slight chance of thunderstorms.
.FRIDAY...Northeast winds around 10 knots then becoming north in the
afternoon. Seas 2 feet. Bay and inland waters a light chop. A chance
of showers and a slight chance of thunderstorms.
.FRIDAY NIGHT...North winds around 10 knots. Seas 2 feet. Bay and
inland waters a light chop. A slight chance of thunderstorms.
.SATURDAY...Northwest winds around 10 knots. Seas 2 feet. Bay and
inland waters a light chop.

$$

GMZ876-211530-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
333 AM EST Tue Nov 21 2017

...SMALL CRAFT EXERCISE CAUTION THROUGH EARLY AFTERNOON...

.TODAY...Southeast winds 15 to 20 knots becoming south and
diminishing to 5 to 10 knots in the afternoon. Seas 2 to 4 feet. A
chance of showers and a slight chance of thunderstorms.
.TONIGHT...South winds around 10 knots then becoming east around
5 knots after midnight. Seas 2 feet. A slight chance of showers.
.WEDNESDAY...East winds around 5 knots. Seas 2 feet or less. A
slight chance of showers in the morning, then a chance of showers
and a slight chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northeast winds around 5 knots then becoming east
around 10 knots after midnight. Seas 2 feet. A slight chance of
thunderstorms.
.THURSDAY...Southwest winds around 10 knots. Seas 2 feet. A chance
of showers in the morning. A slight chance of thunderstorms. Showers
likely in the afternoon.
.THURSDAY NIGHT...Southwest winds around 10 knots then becoming east
after midnight. Seas 2 to 3 feet. Showers likely and a slight chance
of thunderstorms.
.FRIDAY...Northeast winds around 10 knots. Seas 2 to 3 feet. A
chance of showers and a slight chance of thunderstorms.
.FRIDAY NIGHT...North winds around 10 knots. Seas 2 to 3 feet. A
slight chance of thunderstorms.
.SATURDAY...North winds around 10 knots. Seas 2 feet.

$$

GMZ853-211530-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
333 AM EST Tue Nov 21 2017

.TODAY...Southeast winds 10 to 15 knots diminishing to 5 to 10 knots
in the afternoon. Seas 2 to 3 feet. Bay and inland waters a moderate
chop becoming a light chop in the afternoon. A chance of showers in
the morning, then showers likely with a slight chance of thunderstorms
in the afternoon.
.TONIGHT...East winds around 10 knots. Seas 2 feet. Bay and inland
waters a light chop. A slight chance of showers.
.WEDNESDAY...East winds around 5 knots then becoming north late in
the afternoon. Seas 2 feet or less. Bay and inland waters smooth. A
slight chance of showers in the morning, then a chance of showers
and a slight chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...North winds around 10 knots then becoming east in
the late evening and overnight. Seas 2 feet. Bay and inland waters a
light chop. A slight chance of thunderstorms. A chance of showers
after midnight.
.THURSDAY...Southeast winds around 10 knots then becoming west late
in the afternoon. Seas 2 feet. Bay and inland waters a light chop. A
chance of showers and a slight chance of thunderstorms.
.THURSDAY NIGHT...Northwest winds around 10 knots then becoming
northeast in the late evening and overnight. Seas 2 feet. Bay and
inland waters a light chop. Showers likely and a slight chance of
thunderstorms.
.FRIDAY...Northeast winds around 10 knots. Seas 2 feet. Bay and
inland waters a light chop. A chance of showers and a slight chance
of thunderstorms.
.FRIDAY NIGHT...North winds around 10 knots. Seas 2 feet. Bay and
inland waters a light chop. A slight chance of thunderstorms.
.SATURDAY...Northwest winds around 10 knots. Seas 2 feet. Bay and
inland waters a light chop.

$$

GMZ873-211530-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
333 AM EST Tue Nov 21 2017

...SMALL CRAFT EXERCISE CAUTION THROUGH EARLY AFTERNOON...

.TODAY...Southeast winds 15 to 20 knots diminishing to 5 to 10
knots in the afternoon. Seas 2 to 4 feet. A chance of showers in the
morning, then showers likely with a slight chance of thunderstorms
in the afternoon.
.TONIGHT...Southeast winds around 10 knots. Seas 2 feet. A slight
chance of showers.
.WEDNESDAY...East winds around 5 knots then becoming northeast
around 10 knots late in the afternoon. Seas 2 feet or less. A slight
chance of showers in the morning, then a chance of showers and a
slight chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds around 10 knots then becoming
southeast toward morning. Seas 2 feet. A chance of showers and a
slight chance of thunderstorms.
.THURSDAY...Southeast winds around 10 knots then becoming southwest
early in the afternoon, then becoming northwest late in the
afternoon. Seas 2 to 3 feet. A chance of showers in the morning. A
slight chance of thunderstorms. Showers likely in the afternoon.
.THURSDAY NIGHT...North winds around 10 knots then becoming
northeast in the late evening and overnight. Seas 2 to 3 feet.
Showers likely and a slight chance of thunderstorms.
.FRIDAY...Northeast winds around 10 knots. Seas 2 to 3 feet. A
chance of showers and a slight chance of thunderstorms.
.FRIDAY NIGHT...North winds around 10 knots. Seas 2 to 3 feet. A
slight chance of thunderstorms.
.SATURDAY...North winds around 10 knots. Seas 2 feet.

$$

GMZ850-211530-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
333 AM EST Tue Nov 21 2017

.TODAY...East winds 10 to 15 knots diminishing to 5 to 10 knots in
the afternoon. Seas 2 feet. Bay and inland waters a moderate chop
becoming a light chop in the afternoon. A chance of showers in the
morning, then showers likely and a slight chance of thunderstorms
in the afternoon.
.TONIGHT...East winds around 10 knots. Seas 2 feet. Bay and inland
waters a light chop. A chance of showers in the evening, then a
slight chance of showers after midnight.
.WEDNESDAY...Northeast winds around 10 knots. Seas 2 feet or less.
Bay and inland waters a light chop. A slight chance of showers in
the morning, then a chance of showers and a slight chance of
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds around 10 knots. Seas 2 feet. Bay and
inland waters a light chop. A chance of showers and a slight chance
of thunderstorms.
.THURSDAY...East winds around 10 knots then becoming north in the
afternoon. Seas 2 feet. Bay and inland waters a light chop. Showers
likely in the morning. A slight chance of thunderstorms. A chance of
showers in the afternoon.
.THURSDAY NIGHT...Northeast winds around 10 knots. Seas 2 feet. Bay
and inland waters a light chop. A chance of showers and a slight
chance of thunderstorms.
.FRIDAY...Northeast winds around 10 knots. Seas 2 feet. Bay and
inland waters a light chop. A slight chance of thunderstorms.
.FRIDAY NIGHT...North winds around 10 knots. Seas 2 feet. Bay and
inland waters a light chop. A slight chance of thunderstorms.
.SATURDAY...Northwest winds around 10 knots. Seas 2 feet or less.
Bay and inland waters a light chop.

$$

GMZ870-211530-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
333 AM EST Tue Nov 21 2017

...SMALL CRAFT EXERCISE CAUTION THROUGH EARLY AFTERNOON...

.TODAY...Southeast winds 15 to 20 knots diminishing to 10 to
15 knots in the afternoon. Seas 2 to 4 feet. A chance of showers in
the morning, then showers likely and a slight chance of thunderstorms
in the afternoon.
.TONIGHT...East winds around 10 knots. Seas 2 to 3 feet. A chance of
showers in the evening, then a slight chance of showers after
midnight.
.WEDNESDAY...Northeast winds around 10 knots. Seas 2 feet. A slight
chance of showers in the morning, then a chance of showers and a
slight chance of thunderstorms in the afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots increasing to around
15 knots toward morning. Seas 2 feet. A chance of showers in the
evening. A slight chance of thunderstorms. Showers likely after
midnight.
.THURSDAY...East winds around 10 knots then becoming northeast
around 15 knots in the late morning and afternoon. Seas 2 to 3 feet.
Showers likely in the morning. A slight chance of thunderstorms. A
chance of showers in the afternoon.
.THURSDAY NIGHT...Northeast winds around 15 knots. Seas 2 to 3 feet.
A chance of showers and a slight chance of thunderstorms.
.FRIDAY...Northeast winds around 15 knots. Seas 2 to 3 feet. A
slight chance of thunderstorms.
.FRIDAY NIGHT...North winds around 10 knots. Seas 2 feet. A slight
chance of thunderstorms.
.SATURDAY...Northwest winds around 10 knots. Seas 2 feet or less.

$$



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