065
FZUS52 KTBW 190700
CWFTBW

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

GMZ800-191500-
Synopsis for the coastal waters from Bonita Beach to Suwannee River-
300 AM EDT Tue Aug 19 2025

.SYNOPSIS...

An increased northeast to north flow will setup for today, but
we`ll still see a sea breeze develop during the afternoon shifting
winds to northwest. On Wednesday the overall flow will shift to
northwest with slightly drier air moving into the area lowering
the rain chances. For Thursday through the upcoming weekend we`ll
see a west to southwest flow setup with moisture returning leading
to better rain chances. Winds will remain under 15 knots through
the forecast period with seas generally 2 feet or less outside of
thunderstorms.

&&

$$

GMZ830-191500-
Tampa Bay waters-
300 AM EDT Tue Aug 19 2025

.TODAY...Northeast winds 5 to 10 knots, becoming north late. Bay
and inland waters light chop. Scattered showers and thunderstorms
this afternoon.
.TONIGHT...Northeast winds 5 to 10 knots. Bay and inland waters
light chop. Scattered showers and thunderstorms in the evening.
.WEDNESDAY...North winds 5 to 10 knots, becoming northwest 10 to
15 knots in the afternoon. Bay and inland waters a moderate chop.
Isolated 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. Isolated 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.
Scattered showers and thunderstorms.
.THURSDAY NIGHT...West winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Bay and inland waters a moderate chop.
Scattered showers and thunderstorms.
.FRIDAY...West winds 5 to 10 knots. Bay and inland waters light
chop. Scattered thunderstorms. Scattered showers in the morning,
then numerous showers in the afternoon.
.FRIDAY NIGHT...West winds 5 to 10 knots. Bay and inland waters
light chop. Scattered thunderstorms. Numerous showers, mainly in
the evening.
.SATURDAY...West 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.

$$

GMZ836-191500-
Charlotte Harbor and Pine Island Sound-
300 AM EDT Tue Aug 19 2025

.TODAY...North winds 5 to 10 knots, becoming northwest late. Bay
and inland waters light chop. Isolated showers and thunderstorms
early this afternoon. Numerous showers and thunderstorms late.
.TONIGHT...North winds 5 to 10 knots. Bay and inland waters light
chop. Numerous showers and thunderstorms in the evening.
.WEDNESDAY...North winds 5 to 10 knots, becoming northwest 10 to
15 knots in the afternoon. Bay and inland waters a moderate chop.
Isolated 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.
Isolated 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. Scattered
showers and thunderstorms.
.THURSDAY NIGHT...West winds 10 to 15 knots, diminishing to 5 to
10 knots after midnight. Bay and inland waters a moderate chop.
Scattered showers and thunderstorms, mainly in the evening.
.FRIDAY...West winds 5 to 10 knots, increasing to 10 to 15 knots
in the afternoon. Bay and inland waters a moderate chop.
Scattered showers and thunderstorms.
.FRIDAY NIGHT...West winds 5 to 10 knots. Bay and inland waters
light chop. Scattered showers and thunderstorms.
.SATURDAY...West winds 5 to 10 knots. Bay and inland waters light
chop. Scattered showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ856-191500-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
300 AM EDT Tue Aug 19 2025

.TODAY...Northeast winds 5 to 10 knots, becoming northwest around
10 knots this afternoon. Seas 1 foot or less. Wave Detail: North
1 foot at 2 seconds. Bay and inland waters light chop. Isolated
showers and thunderstorms this morning, then scattered showers and
thunderstorms this afternoon.
.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. Scattered showers and thunderstorms, mainly in the evening.
.WEDNESDAY...North winds 5 to 10 knots, becoming northwest 10 to
15 knots in the afternoon. Seas 1 foot or less. Wave Detail:
North 1 foot at 3 seconds. Bay and inland waters a moderate chop.
Isolated showers and thunderstorms in the morning, then scattered
showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...West winds around 10 knots. Seas 1 foot or
less. Wave Detail: Northwest 1 foot at 3 seconds. Bay and inland
waters a light chop. Isolated 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. Scattered 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. Scattered showers and thunderstorms.
.FRIDAY...West winds 5 to 10 knots. Seas 1 foot or less. Bay and
inland waters light chop. Scattered showers and thunderstorms.
.FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Bay and inland waters light chop. Scattered showers and
thunderstorms.
.SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. Bay
and inland waters light chop. Scattered showers and
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ876-191500-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
300 AM EDT Tue Aug 19 2025

.TODAY...Northeast winds around 5 knots, becoming northwest late.
Seas 1 foot or less. Wave Detail: Northeast 1 foot at 3 seconds.
Isolated showers and thunderstorms.
.TONIGHT...North winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: North 1 foot at 3 seconds. Scattered showers and
thunderstorms.
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: North 1 foot at 3 seconds. Scattered showers and
thunderstorms.
.WEDNESDAY NIGHT...West winds around 10 knots. Seas 1 foot or
less. Wave Detail: Northwest 1 foot at 3 seconds. Isolated
showers and thunderstorms in the evening, then scattered showers
and thunderstorms after midnight.
.THURSDAY...West winds around 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 3 seconds. Scattered showers and
thunderstorms.
.THURSDAY NIGHT...West winds around 10 knots. Seas 1 foot or
less. Wave Detail: West 1 foot at 3 seconds. Scattered showers
and thunderstorms.
.FRIDAY...West winds around 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.
.FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.
.SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ853-191500-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
300 AM EDT Tue Aug 19 2025

.TODAY...Northeast winds 5 to 10 knots, becoming northwest around
10 knots this afternoon. Seas 1 foot or less. Wave Detail:
Northeast 1 foot at 2 seconds. Bay and inland waters light chop.
Isolated showers and thunderstorms this morning, then scattered
showers and thunderstorms this afternoon.
.TONIGHT...North winds around 10 knots, becoming northeast in the
late evening and overnight. Seas 1 foot or less. Wave Detail:
North 1 foot at 3 seconds. Bay and inland waters light chop.
Scattered showers and thunderstorms, mainly in the evening.
.WEDNESDAY...North winds 5 to 10 knots, becoming northwest 10 to
15 knots in the afternoon. Seas 1 foot or less. Wave Detail:
North 1 foot at 3 seconds. Bay and inland waters a moderate chop.
Isolated showers and thunderstorms.
.WEDNESDAY NIGHT...Northwest winds around 10 knots. Seas 1 foot
or less. Wave Detail: North 1 foot at 3 seconds. Bay and inland
waters a light chop. Isolated showers and thunderstorms in the
evening, then scattered showers and thunderstorms after midnight.
.THURSDAY...West winds around 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.
.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. Scattered showers and thunderstorms.
.FRIDAY...West winds 5 to 10 knots. Seas 1 foot or less. Bay and
inland waters light chop. Scattered showers and thunderstorms.
.FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Bay and inland waters light chop. Scattered showers and
thunderstorms.
.SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. Bay
and inland waters light chop. Numerous showers and scattered
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ873-191500-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
300 AM EDT Tue Aug 19 2025

.TODAY...Northeast winds 5 to 10 knots, becoming north late. Seas
1 foot or less. Wave Detail: Northeast 1 foot at 3 seconds.
Scattered showers and thunderstorms until late afternoon, then
isolated showers and thunderstorms late.
.TONIGHT...North winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: North 1 foot at 3 seconds. Scattered showers and
thunderstorms.
.WEDNESDAY...North winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: North 1 foot at 3 seconds. Scattered showers and
thunderstorms.
.WEDNESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: North 1 foot at 3 seconds. Isolated showers
and thunderstorms in the evening, then scattered showers and
thunderstorms after midnight.
.THURSDAY...West winds around 10 knots. Seas 1 foot or less. Wave
Detail: Northwest 1 foot at 3 seconds. Numerous showers and
scattered thunderstorms.
.THURSDAY NIGHT...Southwest winds around 10 knots. Seas 1 foot or
less. Wave Detail: West 1 foot at 3 seconds. Scattered showers
and thunderstorms.
.FRIDAY...West winds 5 to 10 knots. Seas 1 foot or less. Numerous
showers and scattered thunderstorms.
.FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Scattered thunderstorms. Scattered showers in the evening, then
numerous showers after midnight.
.SATURDAY...West winds around 10 knots. Seas 1 foot or less.
Numerous showers and scattered thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ850-191500-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
300 AM EDT Tue Aug 19 2025

.TODAY...Northeast winds 5 to 10 knots, becoming north late. Seas
1 foot or less. Wave Detail: East 1 foot at 2 seconds. Bay and
inland waters light chop. Isolated showers and thunderstorms this
morning, then scattered showers and thunderstorms this afternoon.
.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. Scattered showers and thunderstorms, mainly in the
evening.
.WEDNESDAY...North winds 5 to 10 knots, becoming northwest around
10 knots in the afternoon. Seas 1 foot or less. Wave Detail: North
1 foot at 2 seconds. Bay and inland waters light chop. Isolated
showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Northwest winds around 10 knots, diminishing to
5 to 10 knots after midnight. Seas 1 foot or less. Wave Detail:
Northwest 1 foot at 3 seconds. Bay and inland waters light chop.
Scattered showers and thunderstorms.
.THURSDAY...West winds 5 to 10 knots, increasing to around
10 knots in the afternoon. Seas 1 foot or less. Wave Detail: West
1 foot at 3 seconds. Bay and inland waters light chop. Scattered
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. Scattered showers and thunderstorms.
.FRIDAY...West winds 5 to 10 knots. Seas 1 foot or less. Bay and
inland waters light chop. Numerous showers and scattered
thunderstorms.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Bay and inland waters light chop. Scattered showers and
thunderstorms.
.SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less. Bay
and inland waters light chop. Numerous showers and scattered
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ870-191500-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
300 AM EDT Tue Aug 19 2025

.TODAY...East winds 5 to 10 knots, becoming north late. Seas
1 foot or less. Wave Detail: East 1 foot at 3 seconds. Scattered
showers and thunderstorms until late afternoon, then isolated
showers and thunderstorms late.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northeast 1 foot at 3 seconds. Scattered showers and
thunderstorms.
.WEDNESDAY...Northeast winds around 10 knots, becoming north in
the afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds. Scattered showers and thunderstorms.
.WEDNESDAY NIGHT...Northwest winds around 10 knots. Seas 1 foot
or less. Wave Detail: North 1 foot at 3 seconds. Scattered
showers and thunderstorms.
.THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Northwest 1 foot at 3 seconds. Numerous showers and
scattered thunderstorms.
.THURSDAY NIGHT...West winds around 10 knots. Seas 1 foot or
less. Wave Detail: West 1 foot at 3 seconds. Scattered showers
and thunderstorms.
.FRIDAY...West winds 5 to 10 knots. Seas 1 foot or less. Numerous
showers and scattered thunderstorms.
.FRIDAY NIGHT...Southwest winds 5 to 10 knots. Seas 1 foot or
less. Scattered thunderstorms. Scattered showers in the evening,
then numerous showers after midnight.
.SATURDAY...West winds 5 to 10 knots. Seas 1 foot or less.
Numerous showers and scattered thunderstorms.

Winds and seas higher in and near thunderstorms.

$$