Coastal Waters Forecast
Issued by NWS Tampa Bay Area, FL

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FZUS52 KTBW 311356
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Ruskin FL
956 AM EDT Sun Aug 31 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.

GMZ800-010230-
Synopsis for the coastal waters from Bonita Beach to Suwannee River-
956 AM EDT Sun Aug 31 2025

.SYNOPSIS...

A quasi-stationary frontal boundary will linger over the waters
through the next few days, with deep moisture leading to numerous
showers and thunderstorms each day. Winds will generally remain
less than headline criteria, although daily thunderstorms will
produce locally gusty winds rough seas.

&&

$$

GMZ830-010230-
Tampa Bay waters-
956 AM EDT Sun Aug 31 2025

.REST OF TODAY...Northwest winds 5 to 10 knots. Bay and inland
waters light chop. Numerous showers. Scattered thunderstorms late
this morning, then numerous thunderstorms this afternoon.
.TONIGHT...North winds 5 to 10 knots, becoming northeast after
midnight. Bay and inland waters light chop. Scattered showers and
thunderstorms.
.MONDAY...Northeast winds 5 to 10 knots. Bay and inland waters
light chop. Scattered showers with isolated thunderstorms in the
morning, then numerous showers and thunderstorms in the
afternoon.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Bay and inland
waters a moderate chop. Numerous showers and thunderstorms in the
evening, then scattered showers with isolated thunderstorms after
midnight.
.TUESDAY...Northeast winds 5 to 10 knots. Bay and inland waters
light chop. Scattered showers with isolated thunderstorms in the
morning, then numerous showers and thunderstorms in the
afternoon.
.TUESDAY NIGHT...East winds around 10 knots. Bay and inland
waters light chop. Numerous showers and thunderstorms in the
evening, then scattered showers with isolated thunderstorms after
midnight.
.WEDNESDAY...East winds 5 to 10 knots, becoming southwest in the
afternoon. Bay and inland waters light chop. Numerous showers.
Scattered thunderstorms in the morning, then numerous
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots, becoming south
after midnight. Bay and inland waters light chop. Numerous
showers and thunderstorms, mainly in the evening.
.THURSDAY...West winds 5 to 10 knots. Bay and inland waters light
chop. Scattered showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ836-010230-
Charlotte Harbor and Pine Island Sound-
956 AM EDT Sun Aug 31 2025

.REST OF TODAY...West winds 5 to 10 knots. Bay and inland waters
light chop. Scattered showers and thunderstorms late this
morning, then numerous showers and thunderstorms this afternoon.
.TONIGHT...Northwest winds 5 to 10 knots. Bay and inland waters
light chop. Numerous showers and thunderstorms, mainly in the
evening.
.MONDAY...Northeast winds around 5 knots, becoming northwest in
the afternoon. Bay and inland waters light chop. Scattered
showers with isolated thunderstorms in the morning, then numerous
showers and thunderstorms in the afternoon.
.MONDAY NIGHT...North winds around 10 knots, becoming northeast
after midnight. Bay and inland waters light chop. Numerous
showers and thunderstorms in the evening, then scattered showers
with isolated thunderstorms after midnight.
.TUESDAY...Northeast winds 5 to 10 knots, becoming northwest in
the afternoon. Bay and inland waters light chop. Scattered
showers with isolated thunderstorms in the morning, then numerous
showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...North winds 5 to 10 knots, becoming east after
midnight. Bay and inland waters light chop. Numerous showers.
Numerous thunderstorms, mainly in the evening.
.WEDNESDAY...Southeast winds 5 to 10 knots, becoming southwest in
the afternoon. Bay and inland waters light chop. Numerous showers
and scattered thunderstorms in the morning, then widespread
showers and numerous thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Bay and inland
waters light chop. Widespread showers and numerous thunderstorms
in the evening, then numerous showers and scattered thunderstorms
after midnight.
.THURSDAY...West winds around 10 knots. Bay and inland waters
light chop. Numerous showers. Scattered thunderstorms in the
morning, then numerous thunderstorms in the afternoon.

Winds and waves higher in and near thunderstorms.

$$

GMZ856-010230-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
956 AM EDT Sun Aug 31 2025

.REST OF TODAY...West winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: West 1 foot at 3 seconds. Bay and inland waters
light chop. Numerous showers. Scattered thunderstorms late this
morning, then numerous thunderstorms this afternoon.
.TONIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds. Bay and inland waters
light chop. Numerous showers and thunderstorms, mainly in the
evening.
.MONDAY...North winds 5 to 10 knots, becoming northwest in the
afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at
3 seconds. Bay and inland waters light chop. Numerous showers.
Scattered thunderstorms in the morning, then numerous
thunderstorms in the afternoon.
.MONDAY NIGHT...North winds around 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Wave Detail: Northwest
1 foot at 3 seconds. Bay and inland waters light chop. Numerous
showers. Numerous thunderstorms, mainly in the evening.
.TUESDAY...Northeast winds around 10 knots, becoming north in the
afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds. Bay and inland waters light chop. Scattered showers
with isolated thunderstorms in the morning, then numerous showers
and thunderstorms in the afternoon.
.TUESDAY NIGHT...North winds 5 to 10 knots, becoming east after
midnight. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds. Bay and inland waters light chop. Numerous showers.
Numerous thunderstorms, mainly in the evening.
.WEDNESDAY...South winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.
Numerous showers. Scattered thunderstorms in the morning, then
numerous thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas 1 foot
or less, then around 2 feet after midnight. Bay and inland waters
light chop. Numerous showers. Numerous thunderstorms, mainly in
the evening.
.THURSDAY...West winds around 10 knots. Seas around 2 feet. Bay
and inland waters light chop. Widespread showers. Scattered
thunderstorms in the morning, then numerous thunderstorms in the
afternoon.

Winds and seas higher in and near thunderstorms.

$$

GMZ876-010230-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
956 AM EDT Sun Aug 31 2025

.REST OF TODAY...West winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: West 1 foot at 3 seconds. Numerous showers.
Scattered thunderstorms late this morning, then numerous
thunderstorms this afternoon.
.TONIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds. Scattered
thunderstorms. Numerous showers, mainly in the evening.
.MONDAY...North winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Northwest 1 foot at 3 seconds. Numerous showers.
Scattered thunderstorms in the morning, then numerous
thunderstorms in the afternoon.
.MONDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Seas around 2 feet. Wave Detail: Northwest 1 foot
at 4 seconds and southwest 1 foot at 5 seconds. Widespread
showers. Numerous thunderstorms, mainly in the evening.
.TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: North 1 foot at 4 seconds. Numerous showers.
Isolated thunderstorms in the morning, then numerous
thunderstorms in the afternoon.
.TUESDAY NIGHT...North winds 5 to 10 knots, becoming east after
midnight. Seas around 2 feet in the evening, then 1 foot or less.
Wave Detail: North 1 foot at 4 seconds and southwest 1 foot at
5 seconds, becoming north 1 foot at 4 seconds. Widespread
showers. Numerous thunderstorms, mainly in the evening.
.WEDNESDAY...Southwest winds around 10 knots. Seas 1 foot or
less. Widespread showers. Scattered thunderstorms in the morning,
then numerous thunderstorms in the afternoon.
.WEDNESDAY NIGHT...West winds around 10 knots. Seas 1 foot or
less, then around 2 feet after midnight. Widespread showers.
Numerous thunderstorms, mainly in the evening.
.THURSDAY...West winds around 10 knots. Seas around 2 feet.
Widespread showers. Scattered thunderstorms in the morning, then
numerous thunderstorms in the afternoon.

Winds and seas higher in and near thunderstorms.

$$

GMZ853-010230-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
956 AM EDT Sun Aug 31 2025

.REST OF TODAY...West winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: West 1 foot at 3 seconds. Bay and inland waters
light chop. Numerous showers. Scattered thunderstorms late this
morning, then numerous thunderstorms this afternoon.
.TONIGHT...North winds 10 to 15 knots, becoming northeast after
midnight. Seas 1 foot or less, then around 2 feet after midnight.
Wave Detail: North 1 foot at 3 seconds. Bay and inland waters a
moderate chop. Scattered showers and thunderstorms.
.MONDAY...Northeast winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas around 2 feet. Wave Detail: North
1 foot at 4 seconds. Bay and inland waters a moderate chop.
Scattered showers and thunderstorms in the morning, then numerous
showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas around 2 feet. Wave Detail: North 2 feet at
4 seconds and southwest 1 foot at 6 seconds. Bay and inland
waters a moderate chop. Numerous showers and thunderstorms in the
evening, then scattered showers with isolated thunderstorms after
midnight.
.TUESDAY...Northeast winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas around 2 feet. Wave Detail: North
2 feet at 4 seconds. Bay and inland waters a moderate chop.
Scattered showers with isolated thunderstorms in the morning,
then numerous showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Northeast winds around 10 knots, becoming east
after midnight. Seas around 2 feet. Wave Detail: North 1 foot at
3 seconds. Bay and inland waters a moderate chop. Numerous
showers. Numerous thunderstorms, mainly in the evening.
.WEDNESDAY...Southeast winds around 10 knots, becoming southwest
in the afternoon. Seas around 2 feet in the morning, then 1 foot
or less. Bay and inland waters light chop. Numerous showers.
Scattered thunderstorms in the morning, then numerous
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas 1 foot
or less. Bay and inland waters light chop. Numerous showers.
Numerous thunderstorms, mainly in the evening.
.THURSDAY...West winds around 10 knots. Seas around 2 feet. Bay
and inland waters light chop. Numerous showers and scattered
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ873-010230-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
956 AM EDT Sun Aug 31 2025

.REST OF TODAY...West winds 5 to 10 knots, becoming northwest
late. Seas 1 foot or less. Wave Detail: West 1 foot at 3 seconds.
Numerous showers. Scattered thunderstorms late this morning, then
numerous thunderstorms this afternoon.
.TONIGHT...North winds 5 to 10 knots, becoming northeast 10 to
15 knots after midnight. Seas 1 foot or less, then around 2 feet
after midnight. Wave Detail: North 1 foot at 3 seconds, becoming
north 2 feet at 3 seconds. Scattered thunderstorms. Scattered
showers in the evening, then numerous showers after midnight.
.MONDAY...Northeast winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas around 2 feet. Wave Detail:
Northeast 2 feet at 4 seconds and west 1 foot at 3 seconds.
Numerous showers. Scattered thunderstorms in the morning, then
numerous thunderstorms in the afternoon.
.MONDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
4 seconds and northwest 1 foot at 4 seconds. Numerous showers.
Numerous thunderstorms, mainly in the evening.
.TUESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 5 seconds. Numerous showers. Isolated
thunderstorms in the morning, then numerous thunderstorms in the
afternoon.
.TUESDAY NIGHT...Northeast winds around 10 knots, becoming east
after midnight. Seas around 2 feet. Wave Detail: Northeast 2 feet
at 4 seconds. Numerous showers and thunderstorms in the evening,
then widespread showers with isolated thunderstorms after
midnight.
.WEDNESDAY...Southeast winds around 10 knots, becoming southwest
in the afternoon. Seas around 2 feet. Widespread showers.
Scattered thunderstorms in the morning, then numerous
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southwest winds around 10 knots. Seas 1 foot
or less. Numerous showers. Numerous thunderstorms, mainly in the
evening.
.THURSDAY...West winds around 10 knots. Seas around 2 feet.
Numerous showers and scattered thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ850-010230-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
956 AM EDT Sun Aug 31 2025

.REST OF TODAY...North winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: North 1 foot at 2 seconds. Bay and inland waters
light chop. Scattered thunderstorms. Numerous showers late this
morning and early afternoon, then scattered showers late.
.TONIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 1 to 2 feet. Wave Detail: North 2 feet at
3 seconds. Bay and inland waters a moderate chop. Scattered
showers and thunderstorms.
.MONDAY...Northeast winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: North 2 feet at 4 seconds. Bay and inland waters a
moderate chop. Scattered showers. Isolated thunderstorms in the
morning, then scattered thunderstorms in the afternoon.
.MONDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots after midnight. Seas around 2 feet. Wave Detail:
North 2 feet at 4 seconds. Bay and inland waters choppy.
Scattered showers. Scattered thunderstorms, mainly in the
evening.
.TUESDAY...Northeast winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 1 to 2 feet. Wave Detail: North
2 feet at 4 seconds. Bay and inland waters a moderate chop.
Scattered showers. Isolated thunderstorms in the morning, then
scattered thunderstorms in the afternoon.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 foot or
less, then around 2 feet after midnight. Wave Detail: North
1 foot at 3 seconds, becoming east 1 foot at 2 seconds. Bay and
inland waters a moderate chop. Scattered showers. Scattered
thunderstorms, mainly in the evening.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 foot or less. Bay
and inland waters light chop. Numerous showers. Scattered
thunderstorms in the morning, then numerous thunderstorms in the
afternoon.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
Bay and inland waters light chop. Numerous showers and
thunderstorms, mainly in the evening.
.THURSDAY...Northeast winds 5 to 10 knots, becoming northwest in
the afternoon. Seas 1 foot or less. Bay and inland waters light
chop. Scattered showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ870-010230-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
956 AM EDT Sun Aug 31 2025

.REST OF TODAY...North winds 5 to 10 knots, becoming northeast
late. Seas 1 foot or less. Wave Detail: Northeast 1 foot at
2 seconds and west 1 foot at 2 seconds. Scattered thunderstorms.
Widespread showers late this morning and early afternoon, then
scattered showers late.
.TONIGHT...Northeast winds 10 to 15 knots, increasing to 15 to
20 knots after midnight. Seas 2 to 3 feet. Wave Detail: North
3 feet at 4 seconds. Scattered thunderstorms. Numerous showers,
mainly in the evening.
.MONDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at
4 seconds. Numerous showers and scattered thunderstorms.
.MONDAY NIGHT...Northeast winds 15 to 20 knots. Seas 2 to 3 feet.
Wave Detail: North 3 feet at 4 seconds. Scattered showers.
Scattered thunderstorms, mainly in the evening.
.TUESDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Northeast 3 feet at 4 seconds. Scattered showers with
isolated thunderstorms in the morning, then numerous showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Northeast 2 feet at 4 seconds. Numerous showers.
Numerous thunderstorms, mainly in the evening.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet.
Numerous showers and scattered thunderstorms.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.
.THURSDAY...North winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$