321
FZUS52 KTBW 130740
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Ruskin FL
340 AM EDT Sun Jul 13 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.

GMZ800-131500-
Synopsis for the coastal waters from Bonita Beach to Suwannee River-
340 AM EDT Sun Jul 13 2025

.SYNOPSIS...
High pressure will hold over the waters through tonight. An area
of low pressure may develop and move west across the waters Monday
and Tuesday and then well west of the area by midweek. This will
bring increasing shower and thunderstorm activity for much of the
upcoming week. Winds and seas are expected to remain below
cautionary levels at this time, but gusty winds and locally rough
seas will occur in the vicinity of thunderstorms.

&&

$$

GMZ830-131500-
Tampa Bay waters-
340 AM EDT Sun Jul 13 2025

.TODAY...West winds 5 to 10 knots, increasing to around 10 knots
this afternoon. Bay and inland waters light chop. Scattered
showers and thunderstorms.
.TONIGHT...Northwest winds 5 to 10 knots. Bay and inland waters
light chop. Scattered showers and thunderstorms, mainly in the
evening.
.MONDAY...Northwest winds 5 to 10 knots, increasing to around
10 knots in the afternoon. Bay and inland waters light chop.
Scattered thunderstorms. Scattered showers in the morning, then
widespread showers in the afternoon.
.MONDAY NIGHT...North winds 5 to 10 knots. Bay and inland waters
light chop. Scattered thunderstorms. Widespread showers, mainly
in the evening.
.TUESDAY...Northeast winds 5 to 10 knots, becoming southwest in
the afternoon. Bay and inland waters light chop. Isolated showers
and thunderstorms in the morning, then widespread showers and
scattered thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland
waters light chop. Scattered thunderstorms. Widespread showers.
.WEDNESDAY...Southeast winds 10 to 15 knots. Bay and inland
waters a moderate chop. Scattered thunderstorms. Widespread
showers.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Bay and
inland waters light chop. Scattered thunderstorms. Widespread
showers.
.THURSDAY...South winds 5 to 10 knots. Bay and inland waters
light chop. Scattered thunderstorms. Scattered showers in the
morning, then numerous showers in the afternoon.

Winds and waves higher in and near thunderstorms.

$$

GMZ836-131500-
Charlotte Harbor and Pine Island Sound-
340 AM EDT Sun Jul 13 2025

.TODAY...Variable winds around 5 knots, becoming west around
10 knots late this morning and afternoon. Bay and inland waters
light chop. Scattered showers and thunderstorms.
.TONIGHT...Northwest winds 5 to 10 knots. Bay and inland waters
light chop. Scattered showers and thunderstorms, mainly in the
evening.
.MONDAY...Northwest winds 5 to 10 knots, increasing to around
10 knots in the afternoon. Bay and inland waters light chop.
Scattered thunderstorms. Scattered showers in the morning, then
widespread showers in the afternoon.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Bay and inland
waters light chop. Scattered thunderstorms. Widespread showers,
mainly in the evening.
.TUESDAY...Northeast winds 5 to 10 knots, becoming south in the
afternoon. Bay and inland waters light chop. Scattered
thunderstorms. Scattered showers in the morning, then widespread
showers in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland
waters light chop. Scattered thunderstorms. Widespread showers,
mainly in the evening.
.WEDNESDAY...South winds 10 to 15 knots. Bay and inland waters a
moderate chop. Widespread showers and scattered thunderstorms.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Bay and
inland waters light chop. Scattered thunderstorms. Widespread
showers, mainly in the evening.
.THURSDAY...Southeast winds around 10 knots. Bay and inland
waters light chop. Scattered thunderstorms. Scattered showers in
the morning, then numerous showers in the afternoon.

Winds and waves higher in and near thunderstorms.

$$

GMZ856-131500-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
340 AM EDT Sun Jul 13 2025

.TODAY...West winds 5 to 10 knots, increasing to around 10 knots
near the coast this afternoon. Seas 1 foot or less. Wave Detail:
Northwest 1 foot at 2 seconds and south 1 foot at 3 seconds. Bay
and inland waters light chop. Scattered showers and thunderstorms.
.TONIGHT...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. Scattered showers and thunderstorms, mainly in the
evening.
.MONDAY...Northwest winds 5 to 10 knots, increasing to around
10 knots near the coast in the afternoon. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds. Bay and inland waters
light chop. Scattered thunderstorms. Widespread showers.
.MONDAY NIGHT...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. Scattered thunderstorms. Widespread showers,
mainly in the evening.
.TUESDAY...North winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 1 foot or less. Wave Detail: Northwest 1 foot at
4 seconds. Bay and inland waters light chop. Scattered
thunderstorms. Scattered showers in the morning, then widespread
showers in the afternoon.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots, increasing to
10 to 15 knots after midnight. Seas 1 foot or less, then around
2 feet after midnight. Wave Detail: South 1 foot at 2 seconds and
northwest 1 foot at 4 seconds, becoming southeast 1 foot at
3 seconds and northwest 1 foot at 4 seconds. Bay and inland
waters a moderate chop. Scattered thunderstorms. Widespread
showers.
.WEDNESDAY...South winds 10 to 15 knots. Seas around 2 feet. Bay
and inland waters a moderate chop. Widespread showers and
scattered thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Bay and inland waters a moderate chop. Scattered
thunderstorms. Numerous showers, mainly in the evening.
.THURSDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Bay and inland waters a moderate chop. Scattered thunderstorms.
Scattered showers in the morning, then numerous showers in the
afternoon.

Winds and seas higher in and near thunderstorms.

$$

GMZ876-131500-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
340 AM EDT Sun Jul 13 2025

.TODAY...West winds around 5 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 4 seconds. Scattered showers and
thunderstorms until late afternoon, then isolated showers and
thunderstorms late.
.TONIGHT...Northwest winds around 5 knots. Seas 1 foot or less.
Isolated showers and thunderstorms.
.MONDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 2 seconds. Numerous showers and
scattered thunderstorms.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Northwest 1 foot at 3 seconds. Numerous
showers and scattered thunderstorms.
.TUESDAY...North winds around 5 knots. Seas 1 foot or less. Wave
Detail: Northwest 1 foot at 4 seconds. Numerous showers and
scattered thunderstorms.
.TUESDAY NIGHT...South winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 4 seconds. Scattered
thunderstorms. Widespread showers.
.WEDNESDAY...South winds around 10 knots. Seas around 2 feet.
Widespread showers and scattered thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Numerous showers and scattered thunderstorms.
.THURSDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Numerous showers and scattered thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ853-131500-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
340 AM EDT Sun Jul 13 2025

.TODAY...Northwest winds 5 to 10 knots, increasing to around
10 knots this afternoon. Seas 1 foot or less. Wave Detail:
Northwest 1 foot at 3 seconds and south 1 foot at 4 seconds. Bay
and inland waters light chop. Isolated showers and thunderstorms
early this morning, then scattered showers and thunderstorms.
.TONIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 3 seconds and south 1 foot at
4 seconds. Bay and inland waters light chop. Scattered showers
and thunderstorms, mainly in the evening.
.MONDAY...Northwest winds 5 to 10 knots, increasing to around
10 knots in the afternoon. Seas around 2 feet. Wave Detail:
Northwest 2 feet at 4 seconds. Bay and inland waters light chop.
Numerous showers and scattered thunderstorms.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Northwest 2 feet at 4 seconds. Bay and
inland waters light chop. Scattered thunderstorms. Widespread
showers, mainly in the evening.
.TUESDAY...North winds 5 to 10 knots, becoming northwest around
10 knots in the afternoon. Seas 1 foot or less. Wave Detail:
Northwest 1 foot at 4 seconds. Bay and inland waters light chop.
Scattered thunderstorms. Scattered showers in the morning, then
widespread showers in the afternoon.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming southeast
10 to 15 knots with gusts up to 20 knots after midnight. Seas
1 foot or less, then around 2 feet after midnight. Wave Detail:
Southeast 1 foot at 2 seconds and northwest 1 foot at 4 seconds,
becoming southeast 1 foot at 3 seconds and northwest 1 foot at
4 seconds. Bay and inland waters a moderate chop. Scattered
thunderstorms. Widespread showers.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Bay and inland waters a moderate chop. Widespread showers and
scattered thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Bay and inland waters a moderate chop. Numerous showers
and scattered thunderstorms.
.THURSDAY...South winds 10 to 15 knots. Seas around 2 feet. Bay
and inland waters a moderate chop. Numerous showers and scattered
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ873-131500-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
340 AM EDT Sun Jul 13 2025

.TODAY...Northwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 4 seconds. A slight chance of
showers and thunderstorms.
.TONIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 2 seconds and south 1 foot at
4 seconds. Isolated showers and thunderstorms.
.MONDAY...Northwest winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northwest 1 foot at 3 seconds. Numerous showers and
scattered thunderstorms.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Northwest 2 feet at 4 seconds and south
1 foot at 6 seconds. Numerous showers and scattered
thunderstorms.
.TUESDAY...North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northwest 1 foot at 4 seconds and south 1 foot at
6 seconds. Numerous showers and scattered thunderstorms.
.TUESDAY NIGHT...Northeast winds 5 to 10 knots, becoming
southeast after midnight. Seas 1 foot or less, then around 2 feet
after midnight. Wave Detail: East 1 foot at 2 seconds and
northwest 1 foot at 4 seconds, becoming east 1 foot at 3 seconds
and northwest 1 foot at 4 seconds. Scattered thunderstorms.
Widespread showers.
.WEDNESDAY...South winds 10 to 15 knots. Seas around 2 feet.
Widespread showers and scattered thunderstorms.
.WEDNESDAY NIGHT...South winds 10 to 15 knots. Seas around
2 feet. Numerous showers and scattered thunderstorms.
.THURSDAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
Numerous showers and scattered thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ850-131500-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
340 AM EDT Sun Jul 13 2025

.TODAY...West winds 5 to 10 knots, increasing to around 10 knots
this afternoon. Seas 1 foot or less. Wave Detail: West 1 foot at
3 seconds. Bay and inland waters light chop. Scattered showers and
thunderstorms.
.TONIGHT...Northwest winds around 10 knots. Seas 1 foot or less,
then 1 to 2 feet after midnight. Wave Detail: West 1 foot at
3 seconds, becoming northwest 1 foot at 3 seconds. Bay and inland
waters light chop. Scattered showers and thunderstorms.
.MONDAY...Northwest winds around 10 knots. Seas around 2 feet.
Wave Detail: Northwest 2 feet at 4 seconds. Bay and inland waters
light chop. Scattered thunderstorms. Widespread showers.
.MONDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 to 2 feet
in the evening, then 1 foot or less. Wave Detail: West 1 foot at
4 seconds. Bay and inland waters light chop. Scattered
thunderstorms. Widespread showers, mainly in the evening.
.TUESDAY...Northeast winds 5 to 10 knots, becoming northwest
in the afternoon. Seas 1 foot or less. Wave Detail: West 1 foot
at 4 seconds. Bay and inland waters smooth. Scattered
thunderstorms. Scattered showers in the morning, then widespread
showers in the afternoon.
.TUESDAY NIGHT...Variable winds around 5 knots, becoming southeast
around 10 knots overnight. Seas 1 foot or less. Wave Detail:
West 1 foot at 4 seconds. Bay and inland waters light chop.
Scattered thunderstorms. Widespread showers.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas 1 to 2 feet.
Bay and inland waters a moderate chop. Scattered thunderstorms.
Widespread showers.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas around
2 feet. Bay and inland waters a moderate chop. Scattered
thunderstorms. Widespread showers.
.THURSDAY...South winds 10 to 15 knots. Seas around 2 feet. Bay
and inland waters a moderate chop. Numerous showers and scattered
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ870-131500-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
340 AM EDT Sun Jul 13 2025

.TODAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 3 seconds. Scattered showers and
thunderstorms until late afternoon, then isolated showers and
thunderstorms late.
.TONIGHT...Northwest winds around 10 knots. Seas around 2 feet.
Wave Detail: Northwest 2 feet at 4 seconds and south 1 foot at
4 seconds. Isolated showers and thunderstorms in the evening,
then scattered showers and thunderstorms after midnight.
.MONDAY...Northwest winds 10 to 15 knots. Seas around 2 feet.
Wave Detail: Northwest 2 feet at 4 seconds. Numerous showers and
scattered thunderstorms.
.MONDAY NIGHT...Northwest winds around 10 knots. Seas around
2 feet. Wave Detail: Northwest 2 feet at 4 seconds. Numerous
showers and scattered thunderstorms.
.TUESDAY...North winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northwest 2 feet at 4 seconds and southwest 1 foot at
7 seconds. Numerous showers and scattered thunderstorms.
.TUESDAY NIGHT...East winds 5 to 10 knots, becoming southeast
around 10 knots overnight. Seas 1 foot or less, then around
2 feet after midnight. Wave Detail: East 1 foot at 2 seconds and
northwest 1 foot at 4 seconds, becoming east 1 foot at 3 seconds
and west 1 foot at 4 seconds. Scattered thunderstorms. Widespread
showers.
.WEDNESDAY...Southeast winds 10 to 15 knots. Seas around 2 feet.
Widespread showers and scattered thunderstorms.
.WEDNESDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 to
3 feet. Numerous showers and scattered thunderstorms.
.THURSDAY...South winds 10 to 15 knots. Seas 2 to 3 feet.
Numerous showers and scattered thunderstorms.

Winds and seas higher in and near thunderstorms.

$$