675
FZUS52 KTBW 192358
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Ruskin FL
758 PM EDT Tue Aug 19 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.

GMZ800-201215-
Synopsis for the coastal waters from Bonita Beach to Suwannee River-
758 PM EDT Tue Aug 19 2025

.SYNOPSIS...

Scattered showers and thunderstorms will persist this evening
over the northern and central waters, and will dissipate after
midnight. Winds will become northerly tomorrow morning before
becoming onshore during the afternoon hours, which will persist
through the next several days.

&&

$$

GMZ830-201215-
Tampa Bay waters-
758 PM EDT Tue Aug 19 2025

.TONIGHT...Northeast winds 5 to 10 knots. Bay and inland waters
light chop. A chance of showers and thunderstorms early this
evening, then a slight chance of showers and thunderstorms late
this evening.
.WEDNESDAY...North winds 5 to 10 knots, becoming northwest in the
afternoon. Bay and inland waters light chop. A slight chance of
showers and thunderstorms in the morning, then a chance of
showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northwest winds 10 to 15 knots, becoming west
5 to 10 knots after midnight. Bay and inland waters a moderate
chop. A slight chance of showers and thunderstorms.
.THURSDAY...West winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. 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.
.THURSDAY NIGHT...West winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Bay and inland waters a moderate chop. A
chance of showers. A chance of thunderstorms, mainly in the
evening.
.FRIDAY...Southwest 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.
.FRIDAY NIGHT...West winds 5 to 10 knots. Bay and inland waters
light chop. Showers and thunderstorms likely, mainly in the
evening.
.SATURDAY...West winds 5 to 10 knots. Bay and inland waters light
chop. Showers likely. A chance of thunderstorms in the morning,
then thunderstorms likely in the afternoon.
.SATURDAY NIGHT...West winds 5 to 10 knots. Bay and inland waters
light chop. Showers and thunderstorms likely, mainly in the
evening.
.SUNDAY...West winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Bay and inland waters a moderate chop. Showers
likely. A chance of thunderstorms in the morning, then
thunderstorms likely in the afternoon.

Winds and waves higher in and near thunderstorms.

$$

GMZ836-201215-
Charlotte Harbor and Pine Island Sound-
758 PM EDT Tue Aug 19 2025

.TONIGHT...North winds 5 to 10 knots. Bay and inland waters light
chop. Showers and thunderstorms likely early this evening, then a
chance of showers and thunderstorms late this evening.
.WEDNESDAY...North winds 5 to 10 knots, becoming northwest 10 to
15 knots with gusts up to 20 knots in the afternoon. 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.
.WEDNESDAY NIGHT...West winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Bay and inland waters a moderate chop. A
chance of showers and thunderstorms, mainly in the evening.
.THURSDAY...West winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots in the afternoon. 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.
.THURSDAY NIGHT...West winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Bay and inland waters a moderate chop. A
chance of showers and thunderstorms, mainly in the evening.
.FRIDAY...Southwest winds 5 to 10 knots, becoming west 10 to
15 knots in the afternoon. 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.
.FRIDAY NIGHT...West winds 5 to 10 knots. Bay and inland waters
light chop. A chance of showers and thunderstorms, mainly in the
evening.
.SATURDAY...West winds 5 to 10 knots. Bay and inland waters light
chop. A chance of showers and thunderstorms.
.SATURDAY NIGHT...West winds 5 to 10 knots. Bay and inland waters
light chop. A chance of showers and thunderstorms, mainly in the
evening.
.SUNDAY...West winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Bay and inland waters a moderate chop. A chance
of showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ856-201215-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
758 PM EDT Tue Aug 19 2025

.TONIGHT...North winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: North 1 foot at 3 seconds. Bay and inland waters light
chop. A chance of showers and thunderstorms, mainly this evening.
.WEDNESDAY...North winds 5 to 10 knots, becoming northwest with
gusts up to 20 knots in the afternoon. Seas 1 foot or less. Wave
Detail: North 1 foot at 3 seconds. Bay and inland waters light
chop. A slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Northwest winds 10 to 15 knots, becoming west
5 to 10 knots after midnight. Seas 1 foot or less. Wave Detail:
Northwest 1 foot at 3 seconds. Bay and inland waters a moderate
chop. A slight chance of showers and thunderstorms.
.THURSDAY...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. A chance of showers and thunderstorms.
.THURSDAY NIGHT...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. A chance of showers and thunderstorms.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: West 1 foot at 3 seconds. Bay and inland waters
light chop. A chance of showers and thunderstorms.
.FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Bay and inland waters light chop. A chance of showers. A chance
of thunderstorms, mainly in the evening.
.SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. Bay
and inland waters light chop. A chance of showers and
thunderstorms.
.SATURDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Bay and inland waters light chop. A chance of showers and
thunderstorms.
.SUNDAY...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.

$$

GMZ876-201215-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
758 PM EDT Tue Aug 19 2025

.TONIGHT...North winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: North 1 foot at 3 seconds. A chance of showers and
thunderstorms until early morning, then a slight chance of
showers and thunderstorms late.
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: North 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and thunderstorms after midnight.
.THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...Southwest winds around 10 knots. Seas 1 foot or
less. Wave Detail: West 1 foot at 3 seconds. A chance of showers
and thunderstorms.
.FRIDAY...Southwest winds around 10 knots. Seas 1 foot or less.
Wave Detail: West 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms.
.SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. A
chance of showers and thunderstorms.
.SATURDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
A chance of showers and thunderstorms.
.SUNDAY...West winds 5 to 10 knots. Seas 1 foot or less. A chance
of showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ853-201215-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
758 PM EDT Tue Aug 19 2025

.TONIGHT...North winds around 10 knots, becoming northeast after
midnight. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds. Bay and inland waters light chop. A chance of showers
and thunderstorms, mainly this evening.
.WEDNESDAY...North winds 5 to 10 knots, becoming northwest in the
afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds. Bay and inland waters light chop. A slight chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: North 1 foot at 3 seconds. Bay and inland
waters light chop. A slight chance of showers and thunderstorms.
.THURSDAY...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. A chance of showers and thunderstorms.
.THURSDAY NIGHT...West winds around 10 knots. Seas 1 foot or
less. Wave Detail: West 1 foot at 3 seconds. Bay and inland
waters light chop. A chance of showers and thunderstorms.
.FRIDAY...Southwest winds around 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds. Bay and inland waters
light chop. A chance of showers and thunderstorms.
.FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Bay and inland waters light chop. A chance of showers and
thunderstorms.
.SATURDAY...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.
.SATURDAY NIGHT...West winds around 10 knots. Seas 1 foot or
less. Bay and inland waters light chop. Showers and thunderstorms
likely, mainly in the evening.
.SUNDAY...West winds 10 to 15 knots. Seas 1 foot or less, then
around 2 feet in the afternoon. Bay and inland waters a moderate
chop. Showers likely with a chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ873-201215-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
758 PM EDT Tue Aug 19 2025

.TONIGHT...North winds 5 to 10 knots, becoming northeast after
midnight. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds. A slight chance of showers and thunderstorms early
this evening, then a chance of showers and thunderstorms late
this evening and overnight.
.WEDNESDAY...North winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: North 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: North 1 foot at 3 seconds. A chance of showers with
a slight chance of thunderstorms after midnight.
.THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 3 seconds. A chance of showers and
thunderstorms.
.THURSDAY NIGHT...Southwest winds around 10 knots. Seas 1 foot or
less. Wave Detail: Southwest 1 foot at 3 seconds. A chance of
showers and thunderstorms.
.FRIDAY...Southwest winds around 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 3 seconds. Showers likely with a
chance of thunderstorms.
.FRIDAY NIGHT...West winds around 10 knots. Seas 1 foot or less.
A chance of showers and thunderstorms.
.SATURDAY...West winds around 10 knots. Seas 1 foot or less.
Showers likely with a chance of thunderstorms.
.SATURDAY NIGHT...West winds around 10 knots. Seas 1 foot or
less. A chance of thunderstorms. Showers likely, mainly in the
evening.
.SUNDAY...West winds around 10 knots. Seas 1 foot or less, then
around 2 feet in the afternoon. Showers likely with a chance of
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ850-201215-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
758 PM EDT Tue Aug 19 2025

.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northeast 1 foot at 2 seconds. Bay and inland waters
light chop. A chance of showers and thunderstorms early this
evening, then a slight chance of showers and thunderstorms late
this evening.
.WEDNESDAY...North winds 5 to 10 knots, becoming northwest in the
afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at
2 seconds. Bay and inland waters light chop. A slight chance of
showers and thunderstorms.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Northwest 1 foot at 2 seconds. Bay and inland
waters light chop. A slight chance of showers and thunderstorms
in the evening, then a chance of showers and thunderstorms after
midnight.
.THURSDAY...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. A chance of showers and thunderstorms.
.THURSDAY NIGHT...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. A chance of showers and thunderstorms.
.FRIDAY...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. Showers likely with a chance of thunderstorms.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Bay and inland waters light chop. A chance of
thunderstorms. Showers likely, mainly in the evening.
.SATURDAY...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.
.SATURDAY 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.
.SUNDAY...West winds 5 to 10 knots. Seas 1 foot or less. Bay and
inland waters light chop. Showers likely with a chance of
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ870-201215-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
758 PM EDT Tue Aug 19 2025

.TONIGHT...North winds 5 to 10 knots, becoming northeast after
midnight. Seas 1 foot or less. Wave Detail: Northeast 1 foot at
3 seconds. A chance of showers and thunderstorms this evening,
then a slight chance of showers and thunderstorms after midnight.
A chance of showers and thunderstorms late.
.WEDNESDAY...Northeast winds around 10 knots, becoming north in
the afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds. A slight chance of showers and thunderstorms.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: North 1 foot at 3 seconds. A slight chance of
showers and thunderstorms in the evening, then a chance of
showers and thunderstorms after midnight.
.THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Northwest 1 foot at 3 seconds. Showers likely with a
chance of thunderstorms.
.THURSDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: West 1 foot at 3 seconds. A chance of
thunderstorms. A chance of showers in the evening, then showers
likely after midnight.
.FRIDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: West 1 foot at 3 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. A chance of thunderstorms. A chance of showers in the
evening, then showers likely after midnight.
.SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less.
Showers with a chance of thunderstorms.
.SATURDAY NIGHT...West winds around 10 knots. Seas 1 foot or
less. Showers likely with a chance of thunderstorms.
.SUNDAY...West winds around 10 knots. Seas 1 foot or less.
Showers with a chance of thunderstorms.

Winds and seas higher in and near thunderstorms.

$$