Coastal Waters Forecast
Issued by NWS Tampa Bay Area, FL

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FZUS52 KTBW 041301
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Ruskin FL
901 AM EDT Thu Sep 4 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.

GMZ800-050130-
Synopsis for the coastal waters from Bonita Beach to Suwannee River-
901 AM EDT Thu Sep 4 2025

.SYNOPSIS...

Showers and storms will continue to develop over the southern and
central waters as a frontal boundary remains draped over south
Florida. As the weekend approaches, rain chances and winds begin
to decrease across coastal waters, but not completely. Outside of
thunderstorms, winds remain below 15 knots, keeping seas light
overall through the period.

&&

$$

GMZ830-050130-
Tampa Bay waters-
901 AM EDT Thu Sep 4 2025

.REST OF TODAY...East winds around 5 knots. Bay and inland waters
smooth. Scattered showers and thunderstorms.
.TONIGHT...East winds 5 to 10 knots. Bay and inland waters light
chop. Scattered showers and thunderstorms in the evening.
.FRIDAY...Northeast winds 5 to 10 knots. Bay and inland waters
light chop. Isolated showers and thunderstorms in the morning,
then scattered showers and thunderstorms in the afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Bay and inland waters
light chop. Scattered showers and thunderstorms, mainly in the
evening.
.SATURDAY...East winds around 5 knots, becoming northwest in the
afternoon. Bay and inland waters light chop. Isolated showers and
thunderstorms in the morning, then scattered showers and
thunderstorms in the afternoon.
.SATURDAY NIGHT...West winds 5 to 10 knots, becoming southeast
after midnight. Bay and inland waters light chop. Scattered
showers and thunderstorms in the evening.
.SUNDAY...Northeast winds around 5 knots, becoming northwest in
the afternoon. Bay and inland waters light chop. Scattered
showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast
after midnight. Bay and inland waters light chop. Scattered
showers and thunderstorms, mainly in the evening.
.MONDAY...Northeast winds 5 to 10 knots. Bay and inland waters
light chop. Scattered showers and thunderstorms in the afternoon.

Winds and waves higher in and near thunderstorms.

$$

GMZ836-050130-
Charlotte Harbor and Pine Island Sound-
901 AM EDT Thu Sep 4 2025

.REST OF TODAY...East winds around 5 knots, becoming south this
afternoon. Bay and inland waters smooth. Numerous showers and
scattered thunderstorms.
.TONIGHT...Southwest winds around 5 knots, becoming east after
midnight. Bay and inland waters smooth. Numerous showers and
scattered thunderstorms in the evening, then isolated showers and
thunderstorms after midnight.
.FRIDAY...East winds 5 to 10 knots, becoming south in the
afternoon. Bay and inland waters light chop. Scattered
thunderstorms. Scattered showers in the morning, then numerous
showers in the afternoon.
.FRIDAY NIGHT...Southeast winds 5 to 10 knots. Bay and inland
waters light chop. Scattered thunderstorms. Numerous showers,
mainly in the evening.
.SATURDAY...Southwest winds 5 to 10 knots. Bay and inland waters
light chop. Scattered showers and thunderstorms.
.SATURDAY NIGHT...West winds 5 to 10 knots, becoming northwest
after midnight. Bay and inland waters light chop. Scattered
showers and thunderstorms, mainly in the evening.
.SUNDAY...North winds around 5 knots, becoming west in the
afternoon. Bay and inland waters light chop. Isolated showers and
thunderstorms in the morning, then scattered showers and
thunderstorms in the afternoon.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast
after midnight. Bay and inland waters light chop. Scattered
showers and thunderstorms.
.MONDAY...Northeast winds around 5 knots, becoming southwest in
the afternoon. Bay and inland waters light chop. Isolated showers
and thunderstorms in the morning, then numerous showers and
scattered thunderstorms in the afternoon.

Winds and waves higher in and near thunderstorms.

$$

GMZ856-050130-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
901 AM EDT Thu Sep 4 2025

.REST OF TODAY...Southeast winds around 5 knots, becoming
southwest this afternoon. Seas 1 foot or less. Wave Detail: South
1 foot at 3 seconds. Bay and inland waters light chop. Scattered
thunderstorms. Widespread showers.
.TONIGHT...Southwest winds 5 to 10 knots, becoming southeast
after midnight. Seas 1 foot or less. Wave Detail: Southwest
1 foot at 4 seconds. Bay and inland waters light chop. Scattered
thunderstorms. Numerous showers, mainly in the evening.
.FRIDAY...Southeast winds 5 to 10 knots, becoming southwest in
the afternoon. Seas around 2 feet. Wave Detail: Southwest 2 feet
at 5 seconds and east 1 foot at 2 seconds. Bay and inland waters
light chop. Scattered thunderstorms. Scattered showers in the
morning, then numerous showers in the afternoon.
.FRIDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet in
the evening, then 1 foot or less. Wave Detail: Southwest 1 foot
at 5 seconds. Bay and inland waters light chop. Scattered showers
and thunderstorms.
.SATURDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 5 seconds. Bay and inland waters
light chop. Scattered showers and thunderstorms.
.SATURDAY 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. Scattered showers and thunderstorms.
.SUNDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less. Bay
and inland waters light chop. Scattered showers and
thunderstorms.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Bay and inland waters light
chop. Scattered showers and thunderstorms.
.MONDAY...Northeast winds around 5 knots, becoming south in the
afternoon. Seas 1 foot or less. Bay and inland waters smooth.
Scattered showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ876-050130-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
901 AM EDT Thu Sep 4 2025

.REST OF TODAY...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Southwest 1 foot at 4 seconds. Scattered
thunderstorms. Widespread showers early this morning, then
scattered showers late.
.TONIGHT...Southwest winds 5 to 10 knots, becoming southeast
after midnight. Seas 1 foot or less, then around 2 feet after
midnight. Wave Detail: Southwest 1 foot at 5 seconds, becoming
southwest 2 feet at 5 seconds. Scattered showers and
thunderstorms.
.FRIDAY...Southeast winds 5 to 10 knots, becoming southwest in
the afternoon. Seas around 2 feet. Wave Detail: Southwest 2 feet
at 5 seconds. Numerous showers and scattered thunderstorms.
.FRIDAY NIGHT...Southwest winds around 5 knots. Seas around
2 feet in the evening, then 1 foot or less. Wave Detail:
Southwest 2 feet at 5 seconds, becoming southwest 1 foot at
5 seconds. Numerous showers and scattered thunderstorms.
.SATURDAY...West winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southwest 1 foot at 4 seconds. Scattered showers and
thunderstorms.
.SATURDAY NIGHT...West winds around 5 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 4 seconds. Scattered showers and
thunderstorms.
.SUNDAY...Northwest winds around 5 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Seas 1 foot or less. Scattered showers and
thunderstorms.
.MONDAY...Northeast winds around 5 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ853-050130-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
901 AM EDT Thu Sep 4 2025

.REST OF TODAY...East winds 5 to 10 knots, becoming northeast
late. Seas 1 foot or less. Wave Detail: East 1 foot at 2 seconds.
Bay and inland waters light chop. Scattered showers and
thunderstorms.
.TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 2 seconds and southwest 1 foot at
4 seconds. Bay and inland waters light chop. Scattered showers
and thunderstorms, mainly in the evening.
.FRIDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 2 seconds and southwest 1 foot at
5 seconds. Bay and inland waters light chop. Isolated showers and
thunderstorms in the morning, then scattered showers and
thunderstorms in the afternoon.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
after midnight. Seas around 2 feet. Wave Detail: Northeast 1 foot
at 2 seconds and southwest 1 foot at 5 seconds. Bay and inland
waters light chop. Scattered showers and thunderstorms.
.SATURDAY...East winds 5 to 10 knots, becoming northwest in the
afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at
2 seconds and northwest 1 foot at 2 seconds. Bay and inland
waters light chop. Isolated showers and thunderstorms in the
morning, then scattered showers and thunderstorms in the
afternoon.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, becoming
northeast after midnight. Seas 1 foot or less. Wave Detail: North
1 foot at 3 seconds and southwest 1 foot at 4 seconds. Bay and
inland waters light chop. Scattered showers and thunderstorms,
mainly in the evening.
.SUNDAY...North winds 5 to 10 knots. Seas 1 foot or less. Bay and
inland waters light chop. Isolated showers and thunderstorms.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Bay and inland waters light
chop. Scattered showers and thunderstorms.
.MONDAY...East winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.
Isolated showers and thunderstorms in the morning, then scattered
showers and thunderstorms in the afternoon.

Winds and seas higher in and near thunderstorms.

$$

GMZ873-050130-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
901 AM EDT Thu Sep 4 2025

.REST OF TODAY...East winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: East 1 foot at 3 seconds. Scattered thunderstorms.
Widespread showers early this morning, then scattered showers
this afternoon.
.TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 3 seconds and southwest 1 foot at
5 seconds. Scattered showers and thunderstorms.
.FRIDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: East 1 foot at 3 seconds and southwest 1 foot at
5 seconds. Scattered showers and thunderstorms.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
after midnight. Seas around 2 feet. Wave Detail: Northeast 1 foot
at 3 seconds and southwest 1 foot at 5 seconds. Scattered showers
and thunderstorms.
.SATURDAY...East winds 5 to 10 knots, becoming north in the
afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at
3 seconds and southwest 1 foot at 5 seconds. Scattered showers
and thunderstorms.
.SATURDAY NIGHT...North winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: North 1 foot at 3 seconds and southwest 1 foot at
4 seconds. Scattered showers and thunderstorms.
.SUNDAY...North winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Scattered showers and
thunderstorms.
.MONDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ850-050130-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
901 AM EDT Thu Sep 4 2025

.REST OF TODAY...East winds 5 to 10 knots, becoming northwest
late. Seas 1 foot or less. Wave Detail: East 1 foot at 2 seconds.
Bay and inland waters light chop. Isolated showers and
thunderstorms.
.TONIGHT...North winds 5 to 10 knots, becoming east after
midnight. Seas 1 foot or less. Wave Detail: Northeast 1 foot at
2 seconds. Bay and inland waters light chop. Isolated showers and
thunderstorms in the evening.
.FRIDAY...Northeast winds 5 to 10 knots, becoming north in the
afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at
2 seconds and southwest 1 foot at 5 seconds. Bay and inland
waters light chop. Isolated showers and thunderstorms in the
afternoon.
.FRIDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northeast 1 foot at 2 seconds and southwest 1 foot
at 5 seconds. Bay and inland waters light chop. Isolated showers
and thunderstorms.
.SATURDAY...East winds around 5 knots, becoming northwest in the
afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at
2 seconds and southwest 1 foot at 5 seconds. Bay and inland
waters light chop. Isolated showers and thunderstorms.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, becoming
northeast after midnight. Seas 1 foot or less. Wave Detail: North
1 foot at 2 seconds and southwest 1 foot at 5 seconds. Bay and
inland waters light chop. Isolated showers and thunderstorms in
the evening.
.SUNDAY...Northeast winds around 5 knots, becoming northwest in
the afternoon. Seas 1 foot or less. Bay and inland waters light
chop. Isolated showers and thunderstorms in the afternoon.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Bay and inland waters light
chop. Isolated showers and thunderstorms.
.MONDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less. Bay
and inland waters light chop. Scattered showers and thunderstorms
in the afternoon.

Winds and seas higher in and near thunderstorms.

$$

GMZ870-050130-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
901 AM EDT Thu Sep 4 2025

.REST OF TODAY...East winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: East 1 foot at 3 seconds. Scattered showers and
thunderstorms early this morning, then isolated showers and
thunderstorms late this morning and afternoon.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: East 1 foot at 3 seconds. Isolated showers and
thunderstorms after midnight.
.FRIDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: East 1 foot at 3 seconds and southwest 1 foot at
5 seconds. Isolated showers and thunderstorms.
.FRIDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
after midnight. Seas 1 foot or less. Wave Detail: Northeast
1 foot at 3 seconds and southwest 1 foot at 5 seconds. Isolated
showers and thunderstorms in the evening, then scattered showers
and thunderstorms after midnight.
.SATURDAY...East winds around 5 knots, becoming northeast in the
afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at
3 seconds and south 1 foot at 5 seconds. Isolated showers and
thunderstorms.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds and south 1 foot at 5 seconds. Isolated showers and
thunderstorms.
.SUNDAY...North winds around 5 knots. Seas 1 foot or less.
Isolated showers and thunderstorms.
.SUNDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Scattered showers and
thunderstorms.
.MONDAY...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Isolated showers and thunderstorms in the morning, then scattered
showers and thunderstorms in the afternoon.

Winds and seas higher in and near thunderstorms.

$$