Coastal Waters Forecast
Issued by NWS Tampa Bay Area, FL

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
546
FZUS52 KTBW 311838
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Ruskin FL
238 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.

GMZ800-010730-
Synopsis for the coastal waters from Bonita Beach to Suwannee River-
238 PM EDT Sun Aug 31 2025

.SYNOPSIS...

Monday we will see slightly lower PoPs compared to our
Sunday but we can still expect some scattered showers overnight and
early tomorrow morning. However, a stall front will bring widespread
shower back to the forecast for Tuesday through Thursday. Winds will
generally stay below criteria however borderline Small Craft
Exercise Caution will be possible Monday Night.
&&

$$

GMZ830-010730-
Tampa Bay waters-
238 PM EDT Sun Aug 31 2025

.THIS AFTERNOON...West winds around 10 knots, diminishing to
around 5 knots late. Bay and inland waters light chop. Showers
and thunderstorms.
.TONIGHT...Northwest winds around 5 knots, becoming northeast
after midnight. Bay and inland waters light chop. A chance of
showers. A chance of thunderstorms, mainly in the evening.
.MONDAY...Northeast 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...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.

Winds and waves higher in and near thunderstorms.

$$

GMZ836-010730-
Charlotte Harbor and Pine Island Sound-
238 PM EDT Sun Aug 31 2025

.THIS AFTERNOON...West winds around 10 knots. Bay and inland
waters light chop. Showers and thunderstorms likely.
.TONIGHT...Northwest winds 5 to 10 knots, diminishing to around
5 knots after midnight. Bay and inland waters light chop. Showers
and thunderstorms in the evening, then a chance of showers with a
slight chance of thunderstorms after midnight.
.MONDAY...North winds around 5 knots, becoming west in the
afternoon. 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.

Winds and waves higher in and near thunderstorms.

$$

GMZ856-010730-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
238 PM EDT Sun Aug 31 2025

.THIS AFTERNOON...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 and thunderstorms likely.
.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. Showers and thunderstorms likely, mainly in the
evening.
.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. 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.

Winds and seas higher in and near thunderstorms.

$$

GMZ876-010730-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
238 PM EDT Sun Aug 31 2025

.THIS AFTERNOON...West winds around 10 knots. Seas 1 foot or
less. Wave Detail: West 1 foot at 3 seconds. Thunderstorms
likely. Showers.
.TONIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds. A chance of
thunderstorms. Showers likely, mainly in the evening.
.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.
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.

Winds and seas higher in and near thunderstorms.

$$

GMZ853-010730-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
238 PM EDT Sun Aug 31 2025

.THIS AFTERNOON...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. Showers and thunderstorms.
.TONIGHT...Northwest winds 5 to 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
thunderstorms. Showers likely, mainly in the evening.
.MONDAY...Northeast winds 5 to 10 knots, becoming north 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 light 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. 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.

Winds and seas higher in and near thunderstorms.

$$

GMZ873-010730-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
238 PM EDT Sun Aug 31 2025

.THIS AFTERNOON...West winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds. Showers and
thunderstorms likely.
.TONIGHT...Northwest winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Wave Detail: Northwest
1 foot at 3 seconds. A chance of thunderstorms. Showers likely,
mainly in the evening.
.MONDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northwest 2 feet at 4 seconds. A chance of thunderstorms.
Showers likely, mainly in the morning.
.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. 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.

Winds and seas higher in and near thunderstorms.

$$

GMZ850-010730-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
238 PM EDT Sun Aug 31 2025

.THIS AFTERNOON...North winds around 5 knots. Seas 1 foot or
less. Wave Detail: Northeast 1 foot at 2 seconds. Bay and inland
waters smooth. Showers and thunderstorms likely early, then a
chance of showers and thunderstorms late.
.TONIGHT...Northeast winds 10 to 15 knots with gusts up to
20 knots. 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. Bay and inland waters a moderate chop. A chance of
showers and thunderstorms, mainly in the evening.
.MONDAY...Northeast winds 10 to 15 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. 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. 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.

Winds and seas higher in and near thunderstorms.

$$

GMZ870-010730-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
238 PM EDT Sun Aug 31 2025

.THIS AFTERNOON...North winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: North 1 foot at 3 seconds. A chance of
thunderstorms. Showers likely early, then a chance of showers
late.
.TONIGHT...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 3 seconds. A chance of
thunderstorms. Showers likely, 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. A chance of showers and thunderstorms.
.MONDAY NIGHT...Northeast winds 15 to 20 knots. 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. 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.

Winds and seas higher in and near thunderstorms.

$$