Coastal Waters Forecast
Issued by NWS Tampa Bay Area, FL

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026
FZUS52 KTBW 171405
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Ruskin FL
1005 AM EDT Sun Aug 17 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.

GMZ800-172100-
Synopsis for the coastal waters from Bonita Beach to Suwannee River-
1005 AM EDT Sun Aug 17 2025

.SYNOPSIS...
Light flow will turn onshore with the sea breeze today and Monday,
then during Tuesday and Wednesday a more north to northeast flow
will setup. Late in the week the flow will become west to
southwest, but still rather light with winds 10 knots or less.
Isolated to scattered showers and thunderstorms will be possible
over the Gulf during the nighttime and morning hours each day,
then most activity will shift over land through the rest of each
day.

&&

$$

GMZ830-172100-
Tampa Bay waters-
1005 AM EDT Sun Aug 17 2025

.THIS AFTERNOON...South winds around 5 knots, becoming northwest
5 to 10 knots late. Bay and inland waters smooth. Scattered
showers and thunderstorms.
.TONIGHT...Northeast winds 5 to 10 knots, becoming east after
midnight. Bay and inland waters light chop. Scattered showers and
thunderstorms in the evening.
.MONDAY...East winds around 5 knots, becoming west 5 to 10 knots
in the afternoon. Bay and inland waters light chop. Numerous
showers and thunderstorms in the afternoon.
.MONDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Bay and inland waters light chop. Numerous
showers and thunderstorms, mainly in the evening.
.TUESDAY...Northeast winds 5 to 10 knots, becoming north in the
afternoon. Bay and inland waters light chop. Isolated showers and
thunderstorms in the morning, then scattered showers and
thunderstorms in the afternoon.
.TUESDAY NIGHT...North winds around 10 knots, becoming northeast
5 to 10 knots after midnight. Bay and inland waters light chop.
Scattered showers and thunderstorms, mainly in the evening.
.WEDNESDAY...North winds 5 to 10 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.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Bay and inland
waters light chop. Scattered showers and thunderstorms, mainly in
the evening.
.THURSDAY...West winds 5 to 10 knots. Bay and inland waters light
chop. Scattered showers and thunderstorms in the morning, then
numerous showers and thunderstorms in the afternoon.

Winds and waves higher in and near thunderstorms.

$$

GMZ836-172100-
Charlotte Harbor and Pine Island Sound-
1005 AM EDT Sun Aug 17 2025

.THIS AFTERNOON...Southeast winds 5 to 10 knots, becoming west
late. Bay and inland waters smooth. Isolated showers and
thunderstorms early. Scattered showers and thunderstorms late.
.TONIGHT...Northwest winds around 5 knots, becoming east after
midnight. Bay and inland waters smooth. Scattered showers and
thunderstorms, mainly in the evening.
.MONDAY...Southeast winds around 5 knots, becoming west 5 to
10 knots in the afternoon. Bay and inland waters light chop.
Scattered showers and thunderstorms in the afternoon.
.MONDAY NIGHT...Northwest winds 5 to 10 knots, becoming northeast
after midnight. Bay and inland waters light chop. Scattered
showers and thunderstorms.
.TUESDAY...Northeast winds around 5 knots, becoming northwest 5 to
10 knots in the afternoon. Bay and inland waters light chop.
Isolated showers and thunderstorms in the morning, then scattered
showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Bay and inland waters light chop. Scattered
showers and thunderstorms.
.WEDNESDAY...North winds 5 to 10 knots, becoming west around
10 knots in the afternoon. Bay and inland waters a light chop.
Isolated showers and thunderstorms in the morning, then scattered
showers and thunderstorms in the afternoon.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Bay and inland
waters light chop. Scattered showers and thunderstorms, mainly in
the evening.
.THURSDAY...West winds 5 to 10 knots. Bay and inland waters light
chop. Scattered showers and thunderstorms.

Winds and waves higher in and near thunderstorms.

$$

GMZ856-172100-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
1005 AM EDT Sun Aug 17 2025

.THIS AFTERNOON...South winds 5 to 10 knots, becoming southwest
late. Seas 1 foot or less. Wave Detail: Northwest 1 foot at
3 seconds. Bay and inland waters smooth. Isolated showers and
thunderstorms.
.TONIGHT...Northwest winds around 5 knots, becoming east after
midnight. Seas 1 foot or less. Wave Detail: Northwest 1 foot at
3 seconds. Bay and inland waters smooth. Scattered showers and
thunderstorms, mainly in the evening.
.MONDAY...Southeast winds around 5 knots, becoming west 5 to
10 knots in the afternoon. Seas 1 foot or less. Wave Detail: West
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.
.MONDAY NIGHT...Northwest winds around 10 knots, becoming
northeast 5 to 10 knots after midnight. Seas 1 foot or less.
Wave Detail: North 1 foot at 2 seconds. Bay and inland waters
light chop. Scattered showers and thunderstorms.
.TUESDAY...Northeast winds around 5 knots, becoming northwest 5 to
10 knots in the afternoon. Seas 1 foot or less. Wave Detail:
North 1 foot at 3 seconds. Bay and inland waters light chop.
Isolated showers and thunderstorms in the morning, then scattered
showers and thunderstorms in the afternoon.
.TUESDAY NIGHT...North 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 showers and thunderstorms.
.WEDNESDAY...North winds 5 to 10 knots, becoming northwest in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.
Scattered showers and thunderstorms.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Bay and inland waters light chop. Scattered showers and
thunderstorms.
.THURSDAY...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.

$$

GMZ876-172100-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
1005 AM EDT Sun Aug 17 2025

.THIS AFTERNOON...Southeast winds around 5 knots, becoming
southwest late. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds. Isolated showers and thunderstorms.
.TONIGHT...Northwest winds around 5 knots, becoming northeast
after midnight. 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.
.MONDAY...Southeast winds around 5 knots, becoming southwest in
the afternoon. Seas 1 foot or less. Scattered showers and
thunderstorms.
.MONDAY NIGHT...Northwest winds 5 to 10 knots, becoming north
after midnight. Seas 1 foot or less. Wave Detail: Northwest
1 foot at 2 seconds. Scattered showers and thunderstorms.
.TUESDAY...North winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: North 1 foot at 3 seconds. Scattered showers and
thunderstorms.
.TUESDAY NIGHT...Northwest winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Northwest 1 foot at 3 seconds. Scattered
showers and thunderstorms.
.WEDNESDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.
.THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ853-172100-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
1005 AM EDT Sun Aug 17 2025

.THIS AFTERNOON...South winds 5 to 10 knots, becoming northwest
late. Seas 1 foot or less. Wave Detail: Northwest 1 foot at
3 seconds. Bay and inland waters smooth. Isolated showers and
thunderstorms early, then scattered showers and thunderstorms
late.
.TONIGHT...North winds 5 to 10 knots, becoming east 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, mainly in the evening.
.MONDAY...Southeast winds around 5 knots, becoming west 5 to
10 knots in the afternoon. Seas 1 foot or less. Wave Detail:
Northwest 1 foot at 2 seconds and east 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.
.MONDAY NIGHT...North winds around 10 knots, becoming northeast
5 to 10 knots after midnight. Seas 1 foot or less. Wave Detail:
North 1 foot at 2 seconds. Bay and inland waters light chop.
Scattered showers and thunderstorms.
.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. Bay and inland waters light chop. Scattered showers
and thunderstorms.
.TUESDAY NIGHT...North winds around 10 knots, becoming northeast
5 to 10 knots after midnight. Seas 1 foot or less. Wave Detail:
North 1 foot at 3 seconds. Bay and inland waters light chop.
Scattered showers and thunderstorms.
.WEDNESDAY...North winds 5 to 10 knots, becoming northwest in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.
Scattered showers and thunderstorms.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Bay and inland waters light chop. Scattered showers and
thunderstorms.
.THURSDAY...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.

$$

GMZ873-172100-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
1005 AM EDT Sun Aug 17 2025

.THIS AFTERNOON...East winds around 5 knots, becoming north late.
Seas 1 foot or less. Wave Detail: North 1 foot at 3 seconds.
Isolated showers and thunderstorms.
.TONIGHT...Northeast 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.
.MONDAY...Southeast winds around 5 knots, becoming southwest in
the afternoon. Seas 1 foot or less. Wave Detail: Northeast 1 foot
at 2 seconds. Scattered showers and thunderstorms.
.MONDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Wave Detail: North 1 foot at
2 seconds. Scattered showers and thunderstorms.
.TUESDAY...Northeast winds 5 to 10 knots, becoming north in the
afternoon. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds. Scattered showers and thunderstorms.
.TUESDAY NIGHT...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, becoming northwest in the
afternoon. Seas 1 foot or less. Scattered showers and
thunderstorms.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Isolated showers and thunderstorms in the evening, then scattered
showers and thunderstorms after midnight.
.THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less.
Numerous showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ850-172100-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
1005 AM EDT Sun Aug 17 2025

.THIS AFTERNOON...East winds around 5 knots, becoming northwest
5 to 10 knots late. Seas 1 foot or less. Wave Detail: Northwest
1 foot at 3 seconds. Bay and inland waters smooth. Isolated
showers and thunderstorms early, then scattered showers and
thunderstorms.
.TONIGHT...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Northeast 1 foot at 2 seconds. Bay and inland waters
light chop. Numerous showers and thunderstorms in the evening,
then isolated showers and thunderstorms after midnight.
.MONDAY...East winds 5 to 10 knots, becoming north in the
afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at
2 seconds. Bay and inland waters light chop. Isolated showers and
thunderstorms in the morning, then numerous showers and
thunderstorms in the afternoon.
.MONDAY NIGHT...Northeast 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. Numerous
showers and thunderstorms, 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. Bay and inland waters light chop. Scattered showers
and thunderstorms.
.TUESDAY NIGHT...North winds 5 to 10 knots, becoming northeast
after midnight. Seas 1 foot or less. Wave Detail: North 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 in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.
Scattered showers and thunderstorms.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Bay and inland waters light chop. Scattered showers and
thunderstorms.
.THURSDAY...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.

$$

GMZ870-172100-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
1005 AM EDT Sun Aug 17 2025

.THIS AFTERNOON...Northeast winds around 5 knots, becoming north
late. Seas 1 foot or less. Wave Detail: North 1 foot at
3 seconds. Scattered showers and thunderstorms.
.TONIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: North 1 foot at 3 seconds. Scattered showers and
thunderstorms.
.MONDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: East 1 foot at 2 seconds. Scattered showers and
thunderstorms.
.MONDAY NIGHT...Northeast winds 5 to 10 knots. Seas 1 foot or
less. Wave Detail: Northeast 1 foot at 2 seconds. Scattered
showers and thunderstorms.
.TUESDAY...East winds 5 to 10 knots, becoming northeast in the
afternoon. Seas 1 foot or less. Wave Detail: East 1 foot at
3 seconds. Scattered showers and thunderstorms.
.TUESDAY NIGHT...North winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: North 1 foot at 2 seconds. Scattered showers and
thunderstorms.
.WEDNESDAY...North winds around 10 knots, becoming northwest in
the afternoon. Seas 1 foot or less. Scattered showers and
thunderstorms.
.WEDNESDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.
.THURSDAY...West winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$