Coastal Waters Forecast
Issued by NWS Tampa Bay Area, FL

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905
FZUS52 KTBW 010055
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Ruskin FL
855 PM 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.

GMZ800-010900-
Synopsis for the coastal waters from Bonita Beach to Suwannee River-
855 PM EDT Sun Aug 31 2025

.SYNOPSIS...

A weakening cool front will settle south across the waters tonight
and Monday with breezy northeast winds at exercise caution levels
setting up across the northeastern Gulf waters tonight and Monday
night. The boundary will stall across the southern waters for the
first part of the week then lift back north during midweek keeping
shower and thunderstorm chances in the forecast.

&&

$$

GMZ830-010900-
Tampa Bay waters-
855 PM EDT Sun Aug 31 2025

.REST OF TONIGHT...Winds becoming northeast around 10 knots. Bay
and inland waters light chop. A chance of showers and
thunderstorms, then a slight chance of showers and thunderstorms
after midnight.
.MONDAY...Northeast winds around 10 knots. Bay and inland waters
light chop. A slight chance of showers and thunderstorms in the
morning, then showers and thunderstorms likely in the afternoon.
.MONDAY NIGHT...Northeast winds 10 to 15 knots. Bay and inland
waters a moderate chop. A chance of thunderstorms in the evening.
A chance of showers.
.TUESDAY...Northeast winds 5 to 10 knots. Bay and inland waters
light chop. A slight chance of showers in the morning, then
showers and thunderstorms likely in the afternoon.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots. Bay and inland
waters light chop. Showers and thunderstorms likely in the
evening, then a chance of showers with a slight chance of
thunderstorms after midnight.
.WEDNESDAY...East winds 5 to 10 knots, becoming northwest in the
afternoon. Bay and inland waters light chop. A chance of showers
with a slight chance of thunderstorms in the morning, then
showers and thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...South winds 5 to 10 knots, becoming southeast
after midnight. Bay and inland waters light chop. Showers and
thunderstorms likely, mainly in the evening.
.THURSDAY...South winds 5 to 10 knots, becoming west in the
afternoon. Bay and inland waters light chop. A chance of showers
and thunderstorms in the morning, then showers and thunderstorms
likely in the afternoon.
.THURSDAY NIGHT...West winds 5 to 10 knots. Bay and inland waters
light chop. Showers and thunderstorms likely, mainly in the
evening.
.FRIDAY...Northwest winds 5 to 10 knots. Bay and inland waters
light chop. A chance of showers. A slight chance of thunderstorms
in the morning, then a chance of thunderstorms in the afternoon.

Winds and waves higher in and near thunderstorms.

$$

GMZ836-010900-
Charlotte Harbor and Pine Island Sound-
855 PM EDT Sun Aug 31 2025

.REST OF TONIGHT...Winds becoming variable around 5 knots. Bay
and inland waters light chop. A chance of showers and
thunderstorms, mainly this evening.
.MONDAY...Northwest winds 5 to 10 knots. Bay and inland waters
light chop. A slight chance of showers and thunderstorms in the
morning, then showers and thunderstorms likely in the afternoon.
.MONDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Bay and inland waters light chop. Showers and
thunderstorms likely in the evening, then a chance of showers
with a slight chance of thunderstorms after midnight.
.TUESDAY...Northeast winds 5 to 10 knots, becoming northwest in
the afternoon. Bay and inland waters light chop. A chance of
showers in the morning, then showers and thunderstorms likely in
the afternoon.
.TUESDAY NIGHT...North winds 5 to 10 knots, becoming east after
midnight. Bay and inland waters light chop. Showers and
thunderstorms likely in the evening, then a chance of showers
with a slight chance of thunderstorms after midnight.
.WEDNESDAY...East winds 5 to 10 knots, becoming west in the
afternoon. Bay and inland waters light chop. A chance of showers
with a slight chance of thunderstorms in the morning, then
showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...West winds 5 to 10 knots, becoming south after
midnight. Bay and inland waters light chop. Showers and
thunderstorms in the evening, then showers likely with a chance
of thunderstorms after midnight.
.THURSDAY...West winds 5 to 10 knots. Bay and inland waters light
chop. Showers likely with a chance of thunderstorms in the
morning, then showers and thunderstorms in the afternoon.
.THURSDAY NIGHT...West winds 5 to 10 knots. Bay and inland waters
light chop. Showers and thunderstorms, mainly in the evening.
.FRIDAY...West winds 5 to 10 knots. Bay and inland waters light
chop. A chance of showers and thunderstorms in the morning, then
showers and thunderstorms likely in the afternoon.

Winds and waves higher in and near thunderstorms.

$$

GMZ856-010900-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
855 PM EDT Sun Aug 31 2025

.REST OF TONIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds. Bay and inland waters
light chop. A chance of showers and thunderstorms.
.MONDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 4 seconds. Bay and inland waters
light chop. A chance of showers and thunderstorms.
.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. Showers
likely. Thunderstorms likely, mainly in the evening.
.TUESDAY...Northeast winds 5 to 10 knots, becoming north in the
afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot at
2 seconds and west 1 foot at 5 seconds. Bay and inland waters
light chop. A chance of showers with a slight chance of
thunderstorms in the morning, then showers likely with a chance
of 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 and southwest 1 foot at 5 seconds. Bay and inland
waters light chop. Showers likely. Thunderstorms likely, mainly
in the evening.
.WEDNESDAY...Southeast winds 5 to 10 knots, becoming west in the
afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at
2 seconds and northwest 1 foot at 3 seconds. Bay and inland
waters light chop. Showers likely with a chance of thunderstorms
in the morning, then showers with thunderstorms likely in the
afternoon.
.WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Bay and inland waters light chop. Showers and
thunderstorms.
.THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. Bay
and inland waters light chop. Showers likely. A chance of
thunderstorms in the morning, then thunderstorms likely in the
afternoon.
.THURSDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Bay and inland waters light chop. Showers and thunderstorms
likely, mainly in the evening.
.FRIDAY...West winds 5 to 10 knots. Seas 1 foot or less. Bay and
inland waters light chop. A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ876-010900-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
855 PM EDT Sun Aug 31 2025

.REST OF TONIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds. A chance of showers
and thunderstorms.
.MONDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: West 1 foot at 3 seconds. Showers likely with a
chance of thunderstorms.
.MONDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less, then around 2 feet after
midnight. Wave Detail: Northwest 1 foot at 3 seconds, becoming
north 1 foot at 4 seconds. Showers likely with a chance of
thunderstorms.
.TUESDAY...Northeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: North 2 feet at 5 seconds and southwest 1 foot at
5 seconds. Showers likely with a chance of thunderstorms.
.TUESDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Seas around 2 feet in the evening, then 1 foot or
less. Wave Detail: Southwest 1 foot at 5 seconds and north 1 foot
at 5 seconds. Showers likely with a chance of thunderstorms.
.WEDNESDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northeast 1 foot at 3 seconds and northwest 1 foot
at 4 seconds. Showers with a chance of thunderstorms.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Showers with thunderstorms likely.
.THURSDAY...West winds around 10 knots. Seas 1 foot or less.
Showers. A chance of thunderstorms in the morning, then
thunderstorms likely in the afternoon.
.THURSDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Showers likely. Thunderstorms likely, mainly in the evening.
.FRIDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Showers likely with a chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ853-010900-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
855 PM EDT Sun Aug 31 2025

.REST OF TONIGHT...Winds becoming northeast 10 to 15 knots with
gusts up to 20 knots. Seas 2 feet or less. Wave Detail: North
1 foot at 3 seconds. Bay and inland waters a moderate chop.
A chance of showers and thunderstorms.
.MONDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots, becoming north 5 to 10 knots in the afternoon. Seas
1 foot or less, then around 2 feet in the afternoon. Wave Detail:
Northeast 1 foot at 3 seconds and west 1 foot at 4 seconds,
becoming north 1 foot at 4 seconds. Bay and inland waters a
moderate chop. A chance of showers and thunderstorms.
.MONDAY NIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas 2 to 3 feet. Wave Detail: North 2 feet at
4 seconds. Bay and inland waters a moderate chop. A chance of
showers. A chance of thunderstorms, mainly in the evening.
.TUESDAY...Northeast winds 10 to 15 knots, becoming north 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.
A chance of showers with a slight chance of thunderstorms in the
morning, then showers likely with a chance of 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
4 seconds. Bay and inland waters light chop. Showers likely.
Thunderstorms likely, mainly in the evening.
.WEDNESDAY...East winds around 10 knots, becoming southwest in
the afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at
3 seconds and north 1 foot at 3 seconds. Bay and inland waters
light chop. Showers likely. A chance of thunderstorms in the
morning, then thunderstorms likely in the afternoon.
.WEDNESDAY NIGHT...Northwest winds around 10 knots, becoming
south after midnight. Seas 1 foot or less. Bay and inland waters
light chop. Showers likely. Thunderstorms likely, mainly in the
evening.
.THURSDAY...Southwest winds around 10 knots, becoming west in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.
Showers likely with a chance of thunderstorms.
.THURSDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Bay and inland waters light chop. A chance of showers and
thunderstorms.
.FRIDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Bay
and inland waters light chop. A chance of showers. A slight
chance of thunderstorms in the morning, then a chance of
thunderstorms in the afternoon.

Winds and seas higher in and near thunderstorms.

$$

GMZ873-010900-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
855 PM EDT Sun Aug 31 2025

.REST OF TONIGHT...Winds becoming northeast 10 to 15 knots with
gusts up to 20 knots. Seas 2 feet or less. Wave Detail: Northwest
1 foot at 3 seconds. A chance of showers and thunderstorms.
.MONDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas around 2 feet. Wave Detail: Northwest 2 feet at
4 seconds. A chance of showers and thunderstorms.
.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
5 seconds and northwest 1 foot at 4 seconds. Showers likely with
a chance of thunderstorms.
.TUESDAY...Northeast winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail: North
3 feet at 5 seconds. Showers likely with a chance of
thunderstorms.
.TUESDAY NIGHT...Northeast winds around 10 knots, becoming east
after midnight. Seas around 2 feet. Wave Detail: North 2 feet at
4 seconds. Showers likely with a chance of thunderstorms.
.WEDNESDAY...Southeast winds around 10 knots, becoming southwest
in the afternoon. Seas around 2 feet in the morning, then 1 foot
or less. Wave Detail: East 1 foot at 4 seconds, becoming
southwest 1 foot at 2 seconds and east 1 foot at 3 seconds.
Showers likely with a chance of thunderstorms.
.WEDNESDAY NIGHT...West winds 5 to 10 knots, becoming south after
midnight. Seas 1 foot or less. Showers likely. Thunderstorms
likely, mainly in the evening.
.THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less.
Showers likely with a chance of thunderstorms.
.THURSDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
A chance of showers and thunderstorms.
.FRIDAY...Northwest winds around 5 knots. Seas 1 foot or less.
A chance of showers. A chance of thunderstorms, mainly in the
morning.

Winds and seas higher in and near thunderstorms.

$$

GMZ850-010900-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
855 PM EDT Sun Aug 31 2025

...SMALL CRAFT EXERCISE CAUTION LATE THIS EVENING AND OVERNIGHT...

.REST OF TONIGHT...Northeast winds increasing to 15 to 20 knots.
Seas around 2 feet. Wave Detail: North 1 foot at 3 seconds,
becoming north 2 feet at 3 seconds. Bay and inland waters choppy.
A chance of showers and thunderstorms, mainly this evening.
.MONDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots. Seas around 2 feet. Wave Detail: North 2 feet at
3 seconds. Bay and inland waters a moderate chop. A slight chance
of showers and thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots late. Seas 2 to 3 feet. Wave Detail: North 2 feet
at 3 seconds. Bay and inland waters choppy. A chance of
thunderstorms in the evening. A chance of showers.
.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.
A chance of showers. A slight chance of thunderstorms in the
morning, then a chance of thunderstorms in the afternoon.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots. Seas 1 foot or
less. Wave Detail: North 1 foot at 3 seconds. Bay and inland
waters a moderate chop. A chance of showers. A chance of
thunderstorms, mainly in the evening.
.WEDNESDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 2 seconds. Bay and inland waters light
chop. A chance of showers and thunderstorms.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
Bay and inland waters light chop. A chance of showers and
thunderstorms.
.THURSDAY...East winds 5 to 10 knots, becoming west in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.
A chance of showers and thunderstorms.
.THURSDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Bay and inland waters light chop. A chance of showers and
thunderstorms, mainly in the evening.
.FRIDAY...North winds around 5 knots, becoming northwest in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.
A slight chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ870-010900-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
855 PM EDT Sun Aug 31 2025

...SMALL CRAFT EXERCISE CAUTION LATE THIS EVENING AND OVERNIGHT...

.REST OF TONIGHT...Northeast winds increasing to 15 to 20 knots.
Seas 2 to 3 feet. Wave Detail: Northeast 3 feet at 4 seconds and
northwest 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.MONDAY...Northeast winds 15 to 20 knots, diminishing to 10 to
15 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Northeast 3 feet at 4 seconds. A chance of showers and
thunderstorms.
.MONDAY NIGHT...Northeast winds 15 to 20 knots, diminishing to
10 to 15 knots overnight. Seas 2 to 3 feet. Wave Detail: Northeast
3 feet at 4 seconds. A chance of showers. A chance of
thunderstorms, mainly in the evening.
.TUESDAY...Northeast winds 10 to 15 knots with gusts up to
20 knots, diminishing to 5 to 10 knots in the afternoon. Seas
2 to 3 feet. Wave Detail: Northeast 3 feet at 4 seconds. A chance
of showers. A slight chance of thunderstorms in the morning, then
a chance of thunderstorms in the afternoon.
.TUESDAY NIGHT...Northeast winds 10 to 15 knots, becoming east
after midnight. Seas around 2 feet. Wave Detail: North 2 feet at
4 seconds. A chance of thunderstorms. A chance of showers in the
evening, then showers likely after midnight.
.WEDNESDAY...East winds 5 to 10 knots. Seas around 2 feet in the
morning, then 1 foot or less. Wave Detail: East 1 foot at
3 seconds. Showers likely with a chance of thunderstorms.
.WEDNESDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
A chance of showers and thunderstorms.
.THURSDAY...Southeast winds 5 to 10 knots, becoming northwest in
the afternoon. Seas 1 foot or less. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
A slight chance of thunderstorms. A slight chance of showers in
the evening, then a chance of showers after midnight.
.FRIDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
A chance of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$