604
FZUS52 KTBW 180737
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Ruskin FL
337 AM EDT Sat Oct 18 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.

GMZ800-182030-
Synopsis for the coastal waters from Bonita Beach to Suwannee River-
337 AM EDT Sat Oct 18 2025

.SYNOPSIS...
High pressure north of the waters is continuing to produce
exercise caution level winds early this morning. Winds will
subside later this morning, but another easterly surge will bring
wind speeds back up to near exercise caution levels tonight. A
weak cold front will move through the waters on Sunday, fueling
chances of showers over the waters Sunday afternoon and evening.

&&

$$

GMZ830-182030-
Tampa Bay waters-
337 AM EDT Sat Oct 18 2025

.TODAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots
this afternoon. Bay and inland waters a moderate chop.
.TONIGHT...East winds 10 to 15 knots. Bay and inland waters a
moderate chop.
.SUNDAY...Southeast winds 10 to 15 knots, becoming southwest in
the afternoon. Bay and inland waters a moderate chop.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Bay and inland
waters light chop.
.MONDAY...East winds 5 to 10 knots, becoming north in the
afternoon. Bay and inland waters light chop.
.MONDAY NIGHT...North winds 5 to 10 knots, becoming east after
midnight. Bay and inland waters light chop.
.TUESDAY...East winds 5 to 10 knots, becoming west in the
afternoon. Bay and inland waters light chop.
.TUESDAY NIGHT...North winds 5 to 10 knots. Bay and inland waters
light chop.
.WEDNESDAY...North winds 5 to 10 knots, increasing to 10 to
15 knots in the afternoon. Bay and inland waters a moderate chop.

$$

GMZ836-182030-
Charlotte Harbor and Pine Island Sound-
337 AM EDT Sat Oct 18 2025

.TODAY...East winds 5 to 10 knots. Bay and inland waters light
chop.
.TONIGHT...East winds 10 to 15 knots. Bay and inland waters a
moderate chop.
.SUNDAY...Southeast winds 5 to 10 knots, becoming south in the
afternoon. Bay and inland waters light chop.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots, becoming southeast
after midnight. Bay and inland waters light chop.
.MONDAY...East winds around 5 knots, becoming southeast in the
afternoon. Bay and inland waters light chop.
.MONDAY NIGHT...North winds 5 to 10 knots, becoming east after
midnight. Bay and inland waters light chop.
.TUESDAY...East winds 5 to 10 knots, becoming southwest in the
afternoon. Bay and inland waters light chop.
.TUESDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Bay and inland waters light chop.
.WEDNESDAY...North winds 5 to 10 knots. Bay and inland waters
light chop.

$$

GMZ856-182030-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
337 AM EDT Sat Oct 18 2025

.TODAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots
this afternoon. Seas 2 to 3 feet. Wave Detail: East 2 feet at
4 seconds. Bay and inland waters a moderate chop.
.TONIGHT...East winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds. Bay and inland waters a
moderate chop.
.SUNDAY...Southeast winds 10 to 15 knots, becoming south 5 to
10 knots in the afternoon. Seas around 2 feet. Wave Detail:
Southeast 2 feet at 4 seconds. Bay and inland waters a moderate
chop.
.SUNDAY NIGHT...South winds 5 to 10 knots. Seas around 2 feet in
the evening, then 1 foot or less. Wave Detail: South 1 foot at
3 seconds, becoming south 1 foot at 4 seconds. Bay and inland
waters light chop.
.MONDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 4 seconds. Bay and inland waters
light chop.
.MONDAY NIGHT...North winds 5 to 10 knots, becoming east after
midnight. Seas 1 foot or less. Wave Detail: Northwest 1 foot at
3 seconds and east 1 foot at 3 seconds. Bay and inland waters
light chop.
.TUESDAY...East winds 5 to 10 knots, becoming southwest in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.
.TUESDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Bay and inland waters light
chop.
.WEDNESDAY...North winds around 10 knots. Seas 1 foot or less.
Bay and inland waters light chop.

$$

GMZ876-182030-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
337 AM EDT Sat Oct 18 2025

...SMALL CRAFT EXERCISE CAUTION...

.TODAY...East winds of 15 to 20 knots, diminishing to 5 to 10
knots late. Seas 2 to 4 feet, occasionally to 5 feet. Wave Detail:
East 4 feet at 4 seconds.
.TONIGHT...East winds 5 to 10 knots, becoming southeast 10 to
15 knots with gusts up to 20 knots after midnight. Seas 2 to
3 feet. Wave Detail: Southeast 2 feet at 5 seconds.
.SUNDAY...Southeast winds 10 to 15 knots, diminishing to 5 to
10 knots in the afternoon. Seas 2 to 3 feet. Wave Detail:
Southeast 2 feet at 5 seconds. A slight chance of showers in the
afternoon.
.SUNDAY NIGHT...Southeast winds 5 to 10 knots. Seas around
2 feet. Wave Detail: Southeast 2 feet at 5 seconds. A slight
chance of showers and thunderstorms in the evening.
.MONDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 4 seconds.
.MONDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
after midnight. Seas 1 foot or less, then around 2 feet after
midnight. Wave Detail: Northeast 1 foot at 3 seconds and
northwest 1 foot at 4 seconds, becoming east 1 foot at 3 seconds
and northwest 1 foot at 5 seconds.
.TUESDAY...East winds 5 to 10 knots. Seas around 2 feet.
.TUESDAY NIGHT...North winds 5 to 10 knots. Seas around 2 feet.
.WEDNESDAY...North winds 10 to 15 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ853-182030-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
337 AM EDT Sat Oct 18 2025

.TODAY...East winds 10 to 15 knots with gusts up to 20 knots,
diminishing to 5 to 10 knots this afternoon. Seas 2 to 3 feet.
Wave Detail: East 2 feet at 4 seconds. Bay and inland waters a
moderate chop.
.TONIGHT...East winds 10 to 15 knots. Seas 1 foot or less, then
around 2 feet after midnight. Wave Detail: Southeast 1 foot at
4 seconds, becoming southeast 2 feet at 5 seconds. Bay and inland
waters a moderate chop.
.SUNDAY...South winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: Southeast 2 feet at 4 seconds. Bay and inland waters a
moderate chop. A slight chance of showers in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas around 2 feet
in the evening, then 1 foot or less. Wave Detail: South 2 feet at
5 seconds and southwest 1 foot at 2 seconds, becoming southwest
1 foot at 5 seconds. Bay and inland waters light chop. A slight
chance of showers and thunderstorms in the evening.
.MONDAY...Northeast winds 5 to 10 knots, becoming north in the
afternoon. Seas around 2 feet. Wave Detail: Northeast 1 foot at
2 seconds and south 1 foot at 4 seconds. Bay and inland waters
light chop.
.MONDAY NIGHT...North winds around 10 knots, becoming east after
midnight. Seas around 2 feet. Wave Detail: North 2 feet at
3 seconds and south 1 foot at 4 seconds. Bay and inland waters
light chop.
.TUESDAY...East winds 5 to 10 knots, becoming northwest in the
afternoon. Seas around 2 feet in the morning, then 1 foot or
less. Bay and inland waters light chop.
.TUESDAY NIGHT...North winds around 10 knots. Seas around 2 feet.
Bay and inland waters light chop.
.WEDNESDAY...North winds 10 to 15 knots. Seas around 2 feet. Bay
and inland waters a moderate chop.

Winds and seas higher in and near thunderstorms.

$$

GMZ873-182030-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
337 AM EDT Sat Oct 18 2025

...SMALL CRAFT EXERCISE CAUTION...

.TODAY...East winds 15 to 20 knots, diminishing to 5 to 10 knots
in the afternoon. Seas 2 to 4 feet, occasionally to 5 feet. Wave
Detail: East 4 feet at 4 seconds.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 5 seconds.
.SUNDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 4 seconds. A slight chance of showers
in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots. Seas around
2 feet. Wave Detail: South 2 feet at 5 seconds. A slight chance
of thunderstorms in the evening. A slight chance of showers.
.MONDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northwest 1 foot at 3 seconds and southeast 1 foot at
5 seconds.
.MONDAY NIGHT...North winds around 10 knots, becoming east after
midnight. Seas around 2 feet. Wave Detail: North 2 feet at
4 seconds and southeast 1 foot at 4 seconds.
.TUESDAY...East winds 5 to 10 knots, becoming northeast in the
afternoon. Seas around 2 feet in the morning, then 1 foot or
less.
.TUESDAY NIGHT...North winds around 10 knots. Seas 1 foot or
less, then around 2 feet after midnight.
.WEDNESDAY...North winds 10 to 15 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$

GMZ850-182030-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
337 AM EDT Sat Oct 18 2025

.TODAY...East winds 5 to 10 knots. Seas 1 to 2 feet this morning,
then 1 foot or less. Wave Detail: Southeast 1 foot at 4 seconds,
becoming southeast 1 foot at 3 seconds. Bay and inland waters
light chop.
.TONIGHT...Southeast winds 10 to 15 knots. Seas 1 foot or less,
then around 2 feet after midnight. Wave Detail: Southeast 1 foot
at 3 seconds, becoming southeast 2 feet at 4 seconds. Bay and
inland waters a moderate chop.
.SUNDAY...South winds 10 to 15 knots. Seas around 2 feet. Wave
Detail: South 2 feet at 4 seconds. Bay and inland waters a
moderate chop. A chance of showers with a slight chance of
thunderstorms in the afternoon.
.SUNDAY NIGHT...Southwest winds 5 to 10 knots, becoming west
after midnight. Seas around 2 feet. Wave Detail: Southwest 1 foot
at 4 seconds. Bay and inland waters light chop. A slight chance
of showers and thunderstorms.
.MONDAY...Northeast winds 5 to 10 knots. Seas around 2 feet. Wave
Detail: Northwest 1 foot at 3 seconds and south 1 foot at
4 seconds. Bay and inland waters light chop.
.MONDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
after midnight. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds and south 1 foot at 4 seconds. Bay and inland waters
light chop.
.TUESDAY...Northeast winds 5 to 10 knots, becoming northwest in
the afternoon. Seas 1 foot or less. Bay and inland waters light
chop.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less. Bay and inland waters light chop.
.WEDNESDAY...North winds 5 to 10 knots. Seas 1 foot or less. Bay
and inland waters light chop.

Winds and seas higher in and near thunderstorms.

$$

GMZ870-182030-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
337 AM EDT Sat Oct 18 2025

...SMALL CRAFT EXERCISE CAUTION...

.TODAY...East winds 15 to 20 knots, diminishing to 5 to 10 knots
this afternoon. Seas 2 to 3 feet. Wave Detail: East 3 feet at 4
seconds.
.TONIGHT...East winds 5 to 10 knots, becoming southeast 10 to
15 knots after midnight. Seas 2 to 3 feet. Wave Detail: Southeast
3 feet at 5 seconds.
.SUNDAY...South winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: Southeast 3 feet at 4 seconds. A slight chance of showers
in the morning, then a chance of showers and thunderstorms in the
afternoon.
.SUNDAY NIGHT...Southwest winds around 10 knots, becoming west
after midnight. Seas around 2 feet. Wave Detail: Southwest 2 feet
at 5 seconds. A slight chance of thunderstorms. A chance of
showers, mainly in the evening.
.MONDAY...Northeast winds 10 to 15 knots. Seas 2 to 3 feet. Wave
Detail: North 2 feet at 4 seconds and south 1 foot at 5 seconds.
.MONDAY NIGHT...Northeast winds around 10 knots. Seas around
2 feet. Wave Detail: North 2 feet at 4 seconds and south 1 foot
at 5 seconds.
.TUESDAY...Northeast winds 5 to 10 knots, becoming north in the
afternoon. Seas 1 foot or less.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less.
.WEDNESDAY...North winds 10 to 15 knots. Seas around 2 feet.

Winds and seas higher in and near thunderstorms.

$$