Coastal Waters Forecast
Issued by NWS Tampa Bay Area, FL

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FZUS52 KTBW 211423
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Ruskin FL
1023 AM EDT Thu Mar 21 2024

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.

GMZ800-212100-
Synopsis for the coastal waters from Bonita Beach to Suwannee River-
1023 AM EDT Thu Mar 21 2024

.SYNOPSIS...
High pressure will move east across the waters with winds remaining
below headline criteria today. An area of low pressure and
associated frontal boundaries will move eastward through the
eastern gulf waters and into Florida on Friday, bringing showers
and thunderstorms along with increasing winds to advisory levels.
Drier air will move in Saturday, with winds subsiding by Sunday
afternoon.

$$

GMZ830-212100-
Tampa Bay waters-
1023 AM EDT Thu Mar 21 2024

.THIS AFTERNOON...East winds 5 to 10 knots, becoming west late.
Bay and inland waters light chop.
.TONIGHT...Southwest winds 5 to 10 knots, becoming southeast
10 to 15 knots with gusts up to 20 knots after midnight. Bay and
inland waters a moderate chop. Showers likely with a slight
chance of thunderstorms after midnight.
.FRIDAY...Southeast winds 20 to 25 knots with gusts up to
30 knots. Bay and inland waters rough. Showers with a chance of
thunderstorms.
.FRIDAY NIGHT...South winds 15 to 20 knots with gusts up to
25 knots. Bay and inland waters choppy. A chance of
thunderstorms. Showers.
.SATURDAY...Southwest winds 10 to 15 knots, becoming west 15 to
20 knots in the afternoon. Bay and inland waters choppy. A slight
chance of thunderstorms. Showers likely, mainly in the morning.
.SATURDAY NIGHT...Northwest winds 15 to 20 knots with gusts up to
30 knots. Bay and inland waters choppy.
.SUNDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Bay and inland waters choppy.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Bay and inland
waters a moderate chop.
.MONDAY...East winds 10 to 15 knots. Bay and inland waters a
moderate chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ836-212100-
Charlotte Harbor and Pine Island Sound-
1023 AM EDT Thu Mar 21 2024

.THIS AFTERNOON...East winds 5 to 10 knots, becoming southwest
late. Bay and inland waters light chop.
.TONIGHT...Southeast winds 5 to 10 knots, becoming east 10 to
15 knots after midnight. Bay and inland waters a moderate chop.
A slight chance of thunderstorms. A slight chance of showers in
the evening, then showers likely after midnight.
.FRIDAY...Southeast winds 15 to 20 knots with gusts up to
30 knots. Bay and inland waters choppy. Showers with a chance of
thunderstorms.
.FRIDAY NIGHT...South winds 15 to 20 knots with gusts up to
25 knots. Bay and inland waters choppy. Showers with a chance of
thunderstorms.
.SATURDAY...West winds 10 to 15 knots with gusts up to 25 knots.
Bay and inland waters a moderate chop. A slight chance of
thunderstorms. Showers, mainly in the morning.
.SATURDAY NIGHT...Northwest winds 15 to 20 knots with gusts up to
25 knots. Bay and inland waters choppy.
.SUNDAY...North winds 10 to 15 knots. Bay and inland waters a
moderate chop.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Bay and inland
waters a moderate chop.
.MONDAY...East winds 10 to 15 knots. Bay and inland waters a
moderate chop.

Winds and waves higher in and near thunderstorms.

$$

GMZ856-212100-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
1023 AM EDT Thu Mar 21 2024

.THIS AFTERNOON...East winds 5 to 10 knots, becoming variable
around 5 knots late. Seas 2 feet or less. Bay and inland waters
light chop.
.TONIGHT...Southeast winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 1 foot or less, then 2 to 3 feet
after midnight. Bay and inland waters choppy. A slight chance of
thunderstorms. A slight chance of showers in the evening, then
showers likely after midnight.
.FRIDAY...Southeast winds 20 to 25 knots, diminishing to 15 to
20 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. Bay and inland waters rough. Showers with a chance of
thunderstorms.
.FRIDAY NIGHT...South winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Bay and
inland waters choppy. Showers with a chance of thunderstorms.
.SATURDAY...Southwest winds 10 to 15 knots, becoming west 15 to
20 knots in the afternoon. Seas 3 to 4 feet, occasionally to
5 feet. Bay and inland waters choppy. A slight chance of
thunderstorms. Showers, mainly in the morning.
.SATURDAY NIGHT...Northwest winds 15 to 20 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Bay and
inland waters choppy.
.SUNDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Bay and inland waters choppy.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Bay and inland waters a moderate chop.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Bay and
inland waters a moderate chop.

Winds and seas higher in and near thunderstorms.

$$

GMZ876-212100-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
1023 AM EDT Thu Mar 21 2024

.THIS AFTERNOON...Northeast winds around 10 knots, becoming east
5 to 10 knots. Seas around 2 feet.
.TONIGHT...Southeast winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 2 to 4 feet, occasionally to
5 feet. Showers with a slight chance of thunderstorms after
midnight.
.FRIDAY...Southeast winds 20 to 25 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet. Showers with
a chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots, becoming south
after midnight. Gusts up to 25 knots. Seas 4 to 5 feet,
occasionally to 6 feet. Showers with a chance of thunderstorms.
.SATURDAY...Southwest winds 10 to 15 knots, becoming west 15 to
20 knots in the afternoon. Seas 3 to 4 feet, occasionally to
5 feet. A chance of showers with a slight chance of
thunderstorms.
.SATURDAY NIGHT...Northwest winds 15 to 20 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet.
.SUNDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet.
.SUNDAY NIGHT...North winds 10 to 15 knots, becoming east after
midnight. Seas 4 to 5 feet, occasionally to 6 feet.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ853-212100-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
1023 AM EDT Thu Mar 21 2024

.THIS AFTERNOON...East winds 5 to 10 knots, becoming west late.
Seas 2 feet or less. Bay and inland waters light chop.
.TONIGHT...Northeast winds 5 to 10 knots, becoming southeast
15 to 20 knots after midnight. Seas 2 feet or less, then around
2 feet after midnight. Bay and inland waters choppy. A slight
chance of thunderstorms. A slight chance of showers in the
evening, then showers after midnight.
.FRIDAY...Southeast winds 25 to 30 knots, diminishing to 20 to
25 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Bay and inland waters very rough. Showers with a chance
of thunderstorms.
.FRIDAY NIGHT...South winds 15 to 20 knots with gusts up to
25 knots. Seas 3 to 5 feet, occasionally to 6 feet. Bay and
inland waters choppy. A chance of thunderstorms. Showers.
.SATURDAY...West winds 15 to 20 knots with gusts up to 25 knots.
Seas 3 to 4 feet, occasionally to 5 feet. Bay and inland waters
choppy. A slight chance of showers and thunderstorms.
.SATURDAY NIGHT...Northwest winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Bay and
inland waters rough.
.SUNDAY...North winds 20 to 25 knots, diminishing to 10 to
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Bay and inland waters rough.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas 2 to 4 feet,
occasionally to 5 feet. Bay and inland waters a moderate chop.
.MONDAY...East winds 10 to 15 knots. Seas 2 to 3 feet. Bay and
inland waters a moderate chop.

Winds and seas higher in and near thunderstorms.

$$

GMZ873-212100-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
1023 AM EDT Thu Mar 21 2024

.THIS AFTERNOON...Northeast winds 5 to 10 knots becoming east
late. Seas around 2 feet.
.TONIGHT...East winds 5 to 10 knots, becoming southeast 15 to
20 knots with gusts up to 25 knots after midnight. Seas 2 feet or
less, then 2 to 3 feet after midnight. A slight chance of
thunderstorms. A slight chance of showers in the evening, then
showers after midnight.
.FRIDAY...Southeast winds 20 to 25 knots with gusts up to
30 knots. Seas 5 to 7 feet, occasionally to 9 feet. Showers with
a chance of thunderstorms.
.FRIDAY NIGHT...Southeast winds 15 to 20 knots, becoming south
10 to 15 knots after midnight. Gusts up to 30 knots. Seas 5 to
7 feet, occasionally to 9 feet, subsiding to 4 to 5 feet,
occasionally to 6 feet after midnight. A chance of thunderstorms.
Showers.
.SATURDAY...West winds 10 to 15 knots, increasing to 15 to
20 knots in the afternoon. Seas 3 to 5 feet, occasionally to
6 feet. A slight chance of thunderstorms. A chance of showers,
mainly in the morning.
.SATURDAY NIGHT...Northwest winds 20 to 25 knots with gusts up to
30 knots. Seas 4 to 6 feet, occasionally to 8 feet, building to
6 to 7 feet, occasionally to 9 feet after midnight.
.SUNDAY...North winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 5 to 7 feet, occasionally to
9 feet.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
15 to 20 knots after midnight. Seas 3 to 4 feet, occasionally to
5 feet.
.MONDAY...East winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ850-212100-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
1023 AM EDT Thu Mar 21 2024

.THIS AFTERNOON...Northeast winds 5 to 10 knots, becoming
northwest late. Seas 1 foot or less. Bay and inland waters light
chop.
.TONIGHT...North winds 5 to 10 knots, becoming southeast around
15 knots overnight. Seas 2 feet or less. Bay and inland waters a
moderate chop. Showers with a slight chance of thunderstorms after
midnight.
.FRIDAY...Southeast winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Bay and
inland waters choppy. Showers with a chance of thunderstorms.
.FRIDAY NIGHT...South winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 2 to 4 feet, occasionally to
5 feet. Bay and inland waters choppy. A chance of thunderstorms.
Showers.
.SATURDAY...West winds 10 to 15 knots. Seas 2 to 3 feet. Bay and
inland waters a moderate chop. A slight chance of thunderstorms.
A chance of showers, mainly in the morning.
.SATURDAY NIGHT...Northwest winds 15 to 20 knots with gusts up to
25 knots. Seas 2 to 4 feet, occasionally to 5 feet. Bay and
inland waters choppy. A slight chance of showers and
thunderstorms in the evening.
.SUNDAY...North winds 15 to 20 knots, becoming northeast 10 to
15 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet. Bay and inland waters choppy.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots. Seas around
2 feet. Bay and inland waters a moderate chop.
.MONDAY...East winds 10 to 15 knots. Seas around 2 feet. Bay and
inland waters a moderate chop.

Winds and seas higher in and near thunderstorms.

$$

GMZ870-212100-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
1023 AM EDT Thu Mar 21 2024

.THIS AFTERNOON...Northeast winds 5 to 10 knots. Seas 1 foot or
less.
.TONIGHT...Northeast winds 5 to 10 knots, becoming southeast
15 to 20 knots after midnight. Seas 2 feet or less, then around
2 feet after midnight. A slight chance of thunderstorms. A slight
chance of showers in the evening, then showers after midnight.
.FRIDAY...Southeast winds 15 to 20 knots, becoming south 20 to
25 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet. Showers with a chance of thunderstorms.
.FRIDAY NIGHT...South winds 15 to 20 knots, diminishing to 10 to
15 knots after midnight. Seas 5 to 7 feet, occasionally to
9 feet, subsiding to 3 to 5 feet, occasionally to 6 feet after
midnight. A chance of thunderstorms. Showers.
.SATURDAY...West winds 10 to 15 knots. Seas 3 to 4 feet,
occasionally to 5 feet. A slight chance of thunderstorms. A chance
of showers, mainly in the morning.
.SATURDAY NIGHT...Northwest winds 15 to 20 knots, becoming north
20 to 25 knots after midnight. Seas 4 to 6 feet, occasionally to
8 feet.
.SUNDAY...North winds 15 to 20 knots, becoming northeast 10 to
15 knots in the afternoon. Seas 4 to 6 feet, occasionally to
8 feet.
.SUNDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
15 to 20 knots after midnight. Seas 2 to 4 feet, occasionally to
5 feet.
.MONDAY...East winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 4 feet, occasionally to
5 feet.

Winds and seas higher in and near thunderstorms.

$$


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