Coastal Waters Forecast
Issued by NWS Tampa Bay Area, FL

Home |  Current Version |  Previous Version |  Text Only |  Print | Product List |  Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
595
FZUS52 KTBW 182359
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Ruskin FL
759 PM EDT Wed Jun 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.

GMZ800-191215-
Synopsis for the coastal waters from Bonita Beach to Suwannee River-
759 PM EDT Wed Jun 18 2025

.SYNOPSIS...

A SSE flow remains in place across the region, with increasing
moisture favoring higher rain chances for late week. However,
this flow will turn onshore along the coast each afternoon, with
some storms possible as this occurs over Bay and inland waters
before becoming more widespread in the evening and overnight hours
across the remainder of the coastal waters. While winds remain
below 15 kts outside of thunderstorms, generally keeping seas in
the 1 to 2 foot range, higher waves and seas should be expected in
the vicinity of thunderstorms.

&&

$$

GMZ830-191215-
Tampa Bay waters-
759 PM EDT Wed Jun 18 2025

.TONIGHT...Southwest winds 5 to 10 knots, becoming southeast
after midnight. Bay and inland waters light chop. Scattered
showers and thunderstorms until early morning, then isolated
showers and thunderstorms late.
.THURSDAY...South winds 5 to 10 knots, becoming southwest in the
afternoon. Bay and inland waters light chop. Scattered
thunderstorms. Scattered showers in the morning, then numerous
showers in the afternoon.
.THURSDAY NIGHT...West winds 5 to 10 knots. Bay and inland waters
light chop. Scattered thunderstorms. Numerous showers, mainly in
the evening.
.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...Northwest winds 5 to 10 knots, becoming east
after midnight. Bay and inland waters light chop. Scattered
thunderstorms. Numerous showers, mainly in the evening.
.SATURDAY...East winds 5 to 10 knots, becoming west in the
afternoon. Bay and inland waters light chop. Scattered
thunderstorms. Scattered showers in the morning, then numerous
showers in the afternoon.
.SATURDAY NIGHT...North winds 5 to 10 knots, becoming east after
midnight. Bay and inland waters light chop. Scattered
thunderstorms. Numerous showers, mainly in the evening.
.SUNDAY...East winds 5 to 10 knots. Bay and inland waters light
chop. Scattered showers and thunderstorms.
.SUNDAY NIGHT...East winds 10 to 15 knots. Bay and inland waters
a moderate chop. Scattered showers and thunderstorms.
.MONDAY...East 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.

$$

GMZ836-191215-
Charlotte Harbor and Pine Island Sound-
759 PM EDT Wed Jun 18 2025

.TONIGHT...South winds 5 to 10 knots, becoming southeast after
midnight. Bay and inland waters light chop. Numerous showers and
scattered thunderstorms this evening, then isolated showers and
thunderstorms after midnight.
.THURSDAY...Southeast winds 5 to 10 knots, becoming southwest in
the afternoon. Bay and inland waters light chop. Isolated showers
and thunderstorms in the morning, then scattered showers and
thunderstorms in the afternoon.
.THURSDAY NIGHT...West winds 5 to 10 knots, becoming south after
midnight. Bay and inland waters light chop. Scattered
thunderstorms. Numerous showers, mainly in the evening.
.FRIDAY...East winds around 5 knots, becoming southwest in the
afternoon. Bay and inland waters light chop. Scattered
thunderstorms. Scattered showers in the morning, then numerous
showers in the afternoon.
.FRIDAY NIGHT...Northwest winds 5 to 10 knots, becoming east
after midnight. Bay and inland waters light chop. Scattered
thunderstorms. Numerous showers, mainly in the evening.
.SATURDAY...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.
.SATURDAY NIGHT...North winds 5 to 10 knots, becoming east after
midnight. Bay and inland waters light chop. Scattered
thunderstorms. Numerous showers, mainly in the evening.
.SUNDAY...East winds 5 to 10 knots. Bay and inland waters light
chop. Scattered showers and thunderstorms.
.SUNDAY NIGHT...East winds around 10 knots. Bay and inland waters
light chop. Scattered showers and thunderstorms.
.MONDAY...East 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.

$$

GMZ856-191215-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
759 PM EDT Wed Jun 18 2025

.TONIGHT...South winds 5 to 10 knots, becoming southeast after
midnight. Seas 1 foot or less. Wave Detail: South 1 foot at
4 seconds. Bay and inland waters light chop. Scattered showers
and thunderstorms.
.THURSDAY...Southeast winds 5 to 10 knots, becoming south in the
afternoon. Seas 1 foot or less. Wave Detail: South 1 foot at
4 seconds. Bay and inland waters light chop. Scattered showers
and thunderstorms.
.THURSDAY NIGHT...West winds 5 to 10 knots, becoming south after
midnight. Seas 1 foot or less. Wave Detail: South 1 foot at
4 seconds. Bay and inland waters light chop. Scattered showers
and thunderstorms.
.FRIDAY...East winds around 5 knots, becoming southwest in the
afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at
3 seconds. Bay and inland waters light chop. Scattered showers
and thunderstorms.
.FRIDAY NIGHT...Northwest winds 5 to 10 knots, becoming east
after midnight. Seas 1 foot or less. Wave Detail: South 1 foot at
4 seconds. Bay and inland waters light chop. Scattered showers
and thunderstorms.
.SATURDAY...East winds 5 to 10 knots, becoming south in the
afternoon. Seas 1 foot or less. Wave Detail: Southeast 1 foot at
3 seconds. Bay and inland waters light chop. Scattered showers
and thunderstorms.
.SATURDAY NIGHT...Northeast winds 5 to 10 knots, becoming
southeast after midnight. Seas 1 foot or less. Bay and inland
waters light chop. Scattered showers and thunderstorms.
.SUNDAY...East winds around 10 knots, becoming southeast in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.
Scattered showers and thunderstorms.
.SUNDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 1 foot or less, then around 2 feet
after midnight. Bay and inland waters a moderate chop. Scattered
showers and thunderstorms.
.MONDAY...East 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.

$$

GMZ876-191215-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
759 PM EDT Wed Jun 18 2025

.TONIGHT...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds. Scattered showers and
thunderstorms.
.THURSDAY...Southeast winds 5 to 10 knots. Seas around 2 feet.
Wave Detail: Southeast 2 feet at 4 seconds. Scattered showers and
thunderstorms.
.THURSDAY NIGHT...Southwest winds around 5 knots, becoming
southeast after midnight. Seas around 2 feet in the evening, then
1 foot or less. Wave Detail: South 1 foot at 6 seconds, becoming
southeast 1 foot at 4 seconds. Scattered showers and
thunderstorms.
.FRIDAY...East winds around 5 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 4 seconds. Scattered showers and
thunderstorms.
.FRIDAY NIGHT...North winds around 5 knots, becoming east after
midnight. Seas 1 foot or less. Wave Detail: Southeast 1 foot at
3 seconds. Scattered showers and thunderstorms.
.SATURDAY...East winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: Southeast 1 foot at 3 seconds. Scattered showers and
thunderstorms.
.SATURDAY NIGHT...East winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.
.SUNDAY...East winds 5 to 10 knots. Seas around 2 feet. Scattered
showers and thunderstorms.
.SUNDAY NIGHT...East winds 5 to 10 knots, increasing to 10 to
15 knots after midnight. Seas 1 foot or less, then around 2 feet
after midnight. Scattered showers and thunderstorms.
.MONDAY...East winds 10 to 15 knots. Seas around 2 feet. Numerous
showers and scattered thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ853-191215-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
759 PM EDT Wed Jun 18 2025

.TONIGHT...Southwest winds 5 to 10 knots, becoming south after
midnight. Seas 1 foot or less. Wave Detail: South 1 foot at
4 seconds. Bay and inland waters light chop. Scattered showers
and thunderstorms.
.THURSDAY...Southeast winds 5 to 10 knots, becoming southwest in
the afternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot
at 4 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: Southwest 1 foot at 4 seconds. Bay and inland waters
light chop. Scattered showers and thunderstorms.
.FRIDAY...Northwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 4 seconds. Bay and inland waters
light chop. Scattered showers and thunderstorms.
.FRIDAY 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 south 1 foot at 4 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 south 1 foot at 4 seconds. Bay and inland waters
light chop. Scattered showers and thunderstorms.
.SATURDAY NIGHT...North winds 5 to 10 knots, becoming east 10 to
15 knots after midnight. Seas 1 foot or less. Bay and inland
waters a moderate chop. Scattered showers and thunderstorms.
.SUNDAY...East winds around 10 knots, becoming south in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.
Scattered showers and thunderstorms.
.SUNDAY NIGHT...North winds 10 to 15 knots, becoming east after
midnight. Seas 1 foot or less, then around 2 feet after midnight.
Bay and inland waters a moderate chop. Scattered showers and
thunderstorms.
.MONDAY...East winds 10 to 15 knots, becoming northeast 5 to
10 knots in the afternoon. 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.

$$

GMZ873-191215-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
759 PM EDT Wed Jun 18 2025

.TONIGHT...South winds 5 to 10 knots. Seas around 2 feet this
evening, then 1 foot or less. Wave Detail: South 2 feet at
5 seconds, becoming south 1 foot at 5 seconds. Scattered showers
and thunderstorms.
.THURSDAY...South winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 5 seconds. Scattered showers and
thunderstorms.
.THURSDAY NIGHT...West winds around 5 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 6 seconds. Scattered showers and
thunderstorms.
.FRIDAY...Northwest winds around 5 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 6 seconds. Scattered showers and
thunderstorms.
.FRIDAY NIGHT...Northwest winds around 5 knots, becoming
northeast after midnight. Seas 1 foot or less. Wave Detail: South
1 foot at 5 seconds. Scattered showers and thunderstorms.
.SATURDAY...East winds around 5 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 4 seconds. Scattered showers and
thunderstorms.
.SATURDAY NIGHT...North winds 5 to 10 knots, becoming east after
midnight. Seas 1 foot or less. Scattered showers and
thunderstorms.
.SUNDAY...East winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.
.SUNDAY NIGHT...Northeast winds 5 to 10 knots, becoming east
10 to 15 knots after midnight. Seas 1 foot or less, then around
2 feet after midnight. Scattered showers and thunderstorms.
.MONDAY...East winds 10 to 15 knots, diminishing to 5 to 10 knots
in the afternoon. Seas around 2 feet. Scattered showers and
thunderstorms.

Winds and seas higher in and near thunderstorms.

$$

GMZ850-191215-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
759 PM EDT Wed Jun 18 2025

.TONIGHT...West winds 5 to 10 knots, becoming south after
midnight. Seas 1 foot or less. Wave Detail: Southwest 1 foot at
4 seconds. Bay and inland waters light chop. Isolated showers and
thunderstorms this evening, then scattered showers and
thunderstorms after midnight. Isolated showers and thunderstorms
late.
.THURSDAY...South winds around 5 knots, becoming southwest in the
afternoon. Seas 1 foot or less. Wave Detail: Southwest 1 foot at
5 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: Southwest 1 foot at 4 seconds and southwest 1 foot
at 7 seconds. Bay and inland waters light chop. Scattered showers
and thunderstorms.
.FRIDAY...West winds 5 to 10 knots. Seas 1 foot or less. Wave
Detail: West 1 foot at 2 seconds and southwest 1 foot at
5 seconds. Bay and inland waters light chop. Scattered showers
and thunderstorms.
.FRIDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Northwest 1 foot at 2 seconds and southwest 1 foot
at 5 seconds. Bay and inland waters light chop. Scattered showers
and thunderstorms.
.SATURDAY...South winds around 5 knots, becoming west in the
afternoon. Seas 1 foot or less. Wave Detail: West 1 foot at
2 seconds and southwest 1 foot at 5 seconds. Bay and inland
waters smooth. Numerous showers and scattered thunderstorms.
.SATURDAY NIGHT...North winds 5 to 10 knots, becoming east after
midnight. Seas 1 foot or less. Bay and inland waters light chop.
Scattered thunderstorms. Numerous showers, mainly in the evening.
.SUNDAY...East winds 5 to 10 knots, becoming west in the
afternoon. Seas 1 foot or less. Bay and inland waters light chop.
Scattered showers and thunderstorms.
.SUNDAY NIGHT...North winds 5 to 10 knots, becoming east 10 to
15 knots after midnight. Seas 1 foot or less. Bay and inland
waters a moderate chop. Scattered showers and thunderstorms.
.MONDAY...East 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.

$$

GMZ870-191215-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
759 PM EDT Wed Jun 18 2025

.TONIGHT...Southwest winds around 5 knots. Seas around 2 feet.
Wave Detail: Southwest 2 feet at 6 seconds. Isolated showers and
thunderstorms this evening, then scattered showers and
thunderstorms after midnight.
.THURSDAY...Southwest winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 5 seconds. Scattered showers and
thunderstorms.
.THURSDAY NIGHT...West winds 5 to 10 knots. Seas 1 foot or less.
Wave Detail: Southwest 1 foot at 5 seconds. Scattered showers and
thunderstorms.
.FRIDAY...West winds around 5 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 6 seconds. Scattered showers and
thunderstorms.
.FRIDAY NIGHT...West winds around 5 knots. Seas 1 foot or less.
Wave Detail: South 1 foot at 6 seconds. Scattered showers and
thunderstorms.
.SATURDAY...South winds around 5 knots. Seas 1 foot or less. Wave
Detail: South 1 foot at 6 seconds. Scattered showers and
thunderstorms.
.SATURDAY NIGHT...Northwest winds 5 to 10 knots, becoming east
after midnight. Seas 1 foot or less. Scattered showers and
thunderstorms.
.SUNDAY...East winds 5 to 10 knots. Seas 1 foot or less.
Scattered showers and thunderstorms.
.SUNDAY NIGHT...North winds 5 to 10 knots, becoming east 10 to
15 knots after midnight. Seas 1 foot or less, then around 2 feet
after midnight. Scattered showers and thunderstorms.
.MONDAY...East winds 5 to 10 knots. Seas around 2 feet. Scattered
showers and thunderstorms.

Winds and seas higher in and near thunderstorms.

$$