NDBC - National Weather Service Marine Forecast FZUS52 KTBW
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National Weather Service Marine Forecast FZUS52 KTBW

FZUS52 KTBW 150751
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Area - Ruskin FL
351 AM EDT Fri Oct 15 2021

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.

GMZ800-151430-
SYNOPSIS FOR THE COASTAL WATERS FROM BONITA BEACH TO SUWANNEE RIVER-
351 AM EDT Fri Oct 15 2021

SYNOPSIS
High pressure will remain across the waters through
early Saturday with tranquil boating conditions continuing with a
light northeast to east wind flow and slight seas with an onshore sea
breeze component developing near the coast each afternoon. A
weakening cold front will move south through the waters Saturday
night into Sunday with a few showers and storms along and ahead of
it. In the wake of the front stronger high pressure will build into
the region from the north. A tightening pressure gradient will
support an increasing northeast to east wind flow across the waters
and a period of Cautionary headlines will be possible from late
Saturday night through early Monday.



GMZ830-151430-
Tampa Bay waters-
351 AM EDT Fri Oct 15 2021

TODAY
East winds around 5 knots then becoming north around
10 knots in the afternoon. Bay and inland waters a light chop.

TONIGHT
North winds around 5 knots then becoming east around
5 knots toward morning. Bay and inland waters a light chop.

SATURDAY
East winds around 5 knots then becoming north late in
the morning, then becoming northwest around 10 knots in the
afternoon. Bay and inland waters a light chop.

SATURDAY NIGHT
Northwest winds 5 to 10 knots then becoming north
and increasing to around 15 knots toward morning. Bay and inland
waters a moderate chop. A slight chance of thunderstorms in the
evening.

SUNDAY
North winds around 15 knots. Bay and inland waters a
moderate chop.

SUNDAY NIGHT
Northeast winds around 15 knots. Bay and inland
waters a moderate chop.

MONDAY
Northeast winds around 15 knots. Bay and inland waters a
moderate chop.

MONDAY NIGHT
East winds around 15 knots then becoming northeast
and diminishing to 5 to 10 knots after midnight. Bay and inland
waters a moderate chop.

TUESDAY
East winds around 10 knots. Bay and inland waters a light
chop.



GMZ836-151430-
Charlotte Harbor and Pine Island Sound-
351 AM EDT Fri Oct 15 2021

TODAY
Northeast winds around 5 knots then becoming north in the
afternoon. Bay and inland waters smooth.

TONIGHT
North winds around 5 knots then becoming east around
10 knots in the late evening and overnight. Bay and inland waters a
light chop.

SATURDAY
Northeast winds around 5 knots then becoming north
around 5 knots late in the morning, then becoming northwest around
10 knots in the afternoon. Bay and inland waters a light chop.

SATURDAY NIGHT
North winds around 10 knots. Bay and inland waters
a light chop.

SUNDAY
North winds around 10 knots. Bay and inland waters a light
chop.

SUNDAY NIGHT
Northeast winds increasing to around 15 knots. Bay
and inland waters a moderate chop.

MONDAY
Northeast winds around 15 knots. Bay and inland waters a
moderate chop.

MONDAY NIGHT
East winds around 15 knots then becoming northeast
and diminishing to 5 to 10 knots after midnight. Bay and inland
waters a moderate chop.

TUESDAY
East winds 10 to 15 knots. Bay and inland waters a
moderate chop. A slight chance of showers in the afternoon.



GMZ856-151430-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
351 AM EDT Fri Oct 15 2021

TODAY
East winds around 10 knots then becoming north in the
afternoon. Seas 2 feet or less. Bay and inland waters a light chop.

TONIGHT
North winds around 10 knots then becoming east in the
late evening and early morning, then diminishing to around 5 knots
toward morning. Seas 2 feet or less. Bay and inland waters a light
chop.

SATURDAY
East winds around 5 knots then becoming north late in
the morning, then becoming northwest around 10 knots in the
afternoon. Seas 2 feet or less. Bay and inland waters a light chop.

SATURDAY NIGHT
North winds 5 to 10 knots increasing to around
15 knots toward morning. Seas 2 feet. Bay and inland waters a
moderate chop. A slight chance of showers after midnight.

SUNDAY
North winds around 15 knots. Seas 2 to 4 feet. Bay and
inland waters a moderate chop.

SUNDAY NIGHT
Northeast winds around 15 knots. Seas 2 to 4 feet.
Bay and inland waters a moderate chop.

MONDAY
Northeast winds around 15 knots. Seas 2 to 4 feet. Bay and
inland waters a moderate chop.

MONDAY NIGHT
East winds around 15 knots. Seas 2 to 4 feet. Bay
and inland waters a moderate chop.

TUESDAY
East winds around 15 knots. Seas 2 to 4 feet. Bay and
inland waters a moderate chop. A slight chance of showers in the
afternoon.



GMZ876-151430-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
351 AM EDT Fri Oct 15 2021

TODAY
East winds around 10 knots then becoming north around
5 knots late in the afternoon. Seas 2 feet or less.

TONIGHT
North winds around 10 knots then becoming east after
midnight. Seas 2 feet or less.

SATURDAY
Northeast winds around 5 knots then becoming north early
in the afternoon, then becoming northwest around 10 knots late in
the afternoon. Seas 2 feet or less.

SATURDAY NIGHT
North winds increasing to around 15 knots. Seas 2
feet. A slight chance of showers after midnight.

SUNDAY
North winds around 15 knots. Seas 2 to 4 feet.

SUNDAY NIGHT
Northeast winds 15 to 20 knots. Seas building to 3
to 5 feet.

MONDAY
Northeast winds 15 to 20 knots diminishing to 10 to 15
knots in the afternoon. Seas 3 to 5 feet.

MONDAY NIGHT
East winds around 15 knots. Seas 2 to 4 feet.

TUESDAY
East winds around 15 knots. Seas 2 to 4 feet. A slight
chance of showers in the afternoon.



GMZ853-151430-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
351 AM EDT Fri Oct 15 2021

TODAY
East winds around 10 knots then becoming north in the
afternoon. Seas 2 feet or less. Bay and inland waters a light chop.

TONIGHT
North winds around 10 knots then becoming east after
midnight. Seas 2 feet or less. Bay and inland waters a light chop.

SATURDAY
East winds around 5 knots then becoming north late in
the morning, then becoming northwest around 10 knots in the
afternoon. Seas 2 feet or less. Bay and inland waters a light chop.

SATURDAY NIGHT
North winds 10 to 15 knots increasing to 15 to 20
knots toward morning. Seas 2 to 4 feet. Bay and inland waters
becoming choppy. A chance of showers and a slight chance of
thunderstorms in the evening, then a slight chance of showers after
midnight.

SUNDAY
North winds 15 to 20 knots diminishing to 10 to 15 knots
in the late morning and afternoon. Seas 2 to 4 feet. Bay and inland
waters choppy.

SUNDAY NIGHT
Northeast winds around 15 knots. Seas 2 to 4 feet.
Bay and inland waters a moderate chop.

MONDAY
Northeast winds around 15 knots. Seas 2 to 4 feet. Bay and
inland waters a moderate chop.

MONDAY NIGHT
East winds around 15 knots. Seas 2 to 4 feet. Bay
and inland waters a moderate chop.

TUESDAY
East winds around 15 knots. Seas 2 to 4 feet. Bay and
inland waters a moderate chop.



GMZ873-151430-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
351 AM EDT Fri Oct 15 2021

TODAY
East winds around 10 knots then becoming north around
5 knots in the afternoon. Seas 2 feet or less.

TONIGHT
North winds around 10 knots then becoming northeast
around 5 knots toward morning. Seas 2 feet or less.

SATURDAY
North winds around 5 knots increasing to around 10 knots
in the afternoon. Seas 2 feet or less.

SATURDAY NIGHT
Northwest winds 10 to 15 knots then becoming north
and increasing to 15 to 20 knots after midnight. Seas building to 3
to 5 feet. A chance of showers and a slight chance of thunderstorms
in the evening, then a slight chance of showers after midnight.

SUNDAY
North winds 15 to 20 knots diminishing to 10 to 15 knots
in the afternoon. Seas 3 to 5 feet.

SUNDAY NIGHT
Northeast winds 15 to 20 knots. Seas 2 to 4 feet.

MONDAY
Northeast winds around 15 knots. Seas 2 to 4 feet.

MONDAY NIGHT
East winds around 15 knots. Seas 2 to 4 feet.

TUESDAY
East winds around 15 knots. Seas 2 to 4 feet.



GMZ850-151430-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
351 AM EDT Fri Oct 15 2021

TODAY
East winds around 5 knots then becoming northwest around
5 knots in the afternoon. Seas 2 feet or less. Bay and inland waters
smooth.

TONIGHT
Northwest winds around 5 knots then becoming northeast
late in the evening, then becoming southeast around 5 knots after
midnight. Seas 2 feet or less. Bay and inland waters smooth.

SATURDAY
Southwest winds around 5 knots then becoming west late
in the morning, then becoming northwest around 10 knots in the
afternoon. Seas 2 feet or less. Bay and inland waters a light chop.
A slight chance of showers in the afternoon.

SATURDAY NIGHT
Northwest winds 10 to 15 knots then becoming north
and increasing to 15 to 20 knots in the late evening and overnight.
Seas 2 to 4 feet. Bay and inland waters becoming choppy. A chance of
showers and a slight chance of thunderstorms in the evening.

SUNDAY
North winds 15 to 20 knots diminishing to 10 to 15 knots
in the late morning and afternoon. Seas 2 to 4 feet. Bay and inland
waters choppy.

SUNDAY NIGHT
Northeast winds around 15 knots. Seas 2 to 4 feet.
Bay and inland waters a moderate chop.

MONDAY
Northeast winds around 15 knots. Seas 2 to 4 feet. Bay and
inland waters a moderate chop.

MONDAY NIGHT
East winds around 15 knots. Seas 2 to 4 feet. Bay
and inland waters a moderate chop.

TUESDAY
East winds around 15 knots then becoming northeast and
diminishing to 5 to 10 knots late in the afternoon. Seas 2 feet. Bay
and inland waters a moderate chop.



GMZ870-151430-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
351 AM EDT Fri Oct 15 2021

TODAY
East winds around 10 knots then becoming northeast around
5 knots early in the afternoon, then becoming north around 5 knots
late in the afternoon. Seas 2 feet or less.

TONIGHT
North winds around 5 knots. Seas 2 feet or less.

SATURDAY
Northwest winds around 5 knots increasing to around
10 knots in the afternoon. Seas 2 feet or less. A slight chance of
showers in the afternoon.

SATURDAY NIGHT
Northwest winds 10 to 15 knots then becoming north
and increasing to 15 to 20 knots in the late evening and overnight.
Seas building to 3 to 5 feet. A chance of showers and a slight
chance of thunderstorms in the evening.

SUNDAY
Northeast winds 15 to 20 knots then becoming north and
diminishing to 10 to 15 knots in the afternoon. Seas 3 to 5 feet.

SUNDAY NIGHT
Northeast winds around 15 knots. Seas 2 to 4 feet.

MONDAY
Northeast winds around 15 knots. Seas 2 to 4 feet.

MONDAY NIGHT
East winds around 15 knots. Seas 2 to 4 feet.

TUESDAY
East winds around 15 knots. Seas 2 to 4 feet.