(1/4)
Latest Coastal Waters Forecast by KTBW
Issued 5/21/2026 3:21 PM America/New_York.
Valid through 5/22/2026 4:15 AM America/New_York.
fzus52 ktbw 211921
cwftbw
expires:202605220815;;416116
coastal waters forecast for florida
national weather service tampa bay ruskin fl
321 pm edt thu may 21 2026
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.
gmz830-220815-
tampa bay waters-
321 pm edt thu may 21 2026
.tonight...northwest winds 5 to 10 knots, becoming northeast late
this evening, then becoming southeast after midnight. bay and
inland waters light chop. a slight chance of showers and
thunderstorms this evening.
.friday...southeast winds 5 to 10 knots, becoming southwest in
the afternoon. bay and inland waters light chop.
.friday night...southwest winds 5 to 10 knots, becoming southeast
after midnight. bay and inland waters light chop. a slight chance
of showers and thunderstorms in the evening.
.saturday...southeast winds 5 to 10 knots, becoming southwest in
the afternoon. bay and inland waters light chop. a chance of
showers and thunderstorms in the afternoon.
.saturday night...northwest winds 5 to 10 knots, becoming
southeast after midnight. bay and inland waters light chop. a
chance of showers and thunderstorms, mainly in the evening.
.sunday...southeast winds around 10 knots, becoming south in the
afternoon. bay and inland waters light chop. a chance of showers
and thunderstorms in the afternoon.
.sunday night...northeast winds 5 to 10 knots, becoming southeast
10 to 15 knots after midnight. bay and inland waters a moderate
chop. a chance of showers and thunderstorms.
.monday...southeast winds 10 to 15 knots, becoming south 5 to
10 knots in the afternoon. bay and inland waters a moderate chop.
a chance of showers and thunderstorms in the afternoon.
.monday night...southeast winds 5 to 10 knots, increasing to
10 to 15 knots after midnight. bay and inland waters a moderate
chop. a chance of showers and thunderstorms.
.tuesday...southeast winds 10 to 15 knots, becoming south 5 to
10 knots in the afternoon. bay and inland waters a moderate chop.
a chance of showers and thunderstorms in the afternoon.
winds and waves higher in and near thunderstorms.
$$
(2/4)
Latest Coastal Waters Forecast by KTBW
Issued 5/21/2026 3:21 PM America/New_York.
Valid through 5/22/2026 4:15 AM America/New_York.
fzus52 ktbw 211921
cwftbw
expires:202605220815;;416120
coastal waters forecast for florida
national weather service tampa bay ruskin fl
321 pm edt thu may 21 2026
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.
gmz853-220815-
coastal waters from englewood to tarpon springs fl out 20 nm-
321 pm edt thu may 21 2026
.tonight...west winds 5 to 10 knots, becoming northeast late this
evening, then becoming southeast after midnight. seas 1 foot or
less. wave detail: southwest 1 foot at 4 seconds. bay and inland
waters light chop. a slight chance of showers and thunderstorms
late this evening.
.friday...southeast winds around 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.
.friday night...south winds 5 to 10 knots, becoming east after
midnight. seas 1 foot or less. wave detail: south 1 foot at
5 seconds. bay and inland waters light chop. a slight chance of
showers and thunderstorms in the evening.
.saturday...southeast winds around 10 knots, becoming southwest
in the afternoon. seas around 2 feet in the morning, then 1 foot
or less. wave detail: south 1 foot at 4 seconds. bay and inland
waters light chop. a slight chance of showers and thunderstorms
in the afternoon.
.saturday night...north winds 5 to 10 knots, becoming east after
midnight. seas 1 foot or less. wave detail: southwest 1 foot at
4 seconds. bay and inland waters light chop. a slight chance of
showers and thunderstorms.
.sunday...southeast winds around 10 knots, becoming south in the
afternoon. seas around 2 feet. wave detail: southeast 1 foot at
4 seconds. bay and inland waters light chop. a chance of showers
and thunderstorms in the afternoon.
.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. bay and inland waters a moderate chop. a
chance of showers and thunderstorms.
.monday...southeast winds 10 to 15 knots, becoming south in the
afternoon. seas around 2 feet. bay and inland waters a moderate
chop. a slight chance of showers and thunderstorms in the
afternoon.
.monday night...southeast winds 5 to 10 knots, becoming east
10 to 15 knots after midnight. seas 2 to 3 feet. bay and inland
waters a moderate chop. a chance of showers and thunderstorms.
.tuesday...southeast winds around 15 knots, becoming south in the
afternoon. seas 2 to 3 feet. bay and inland waters a moderate
chop. a chance of showers and thunderstorms in the afternoon.
winds and seas higher in and near thunderstorms.
$$
(3/4)
Latest Coastal Waters Forecast by KTBW
Issued 5/21/2026 3:21 PM America/New_York.
Valid through 5/22/2026 4:15 AM America/New_York.
fzus52 ktbw 211921
cwftbw
expires:202605220815;;416123
coastal waters forecast for florida
national weather service tampa bay ruskin fl
321 pm edt thu may 21 2026
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.
gmz870-220815-
waters from tarpon springs to suwannee river fl out 20 to 60 nm-
321 pm edt thu may 21 2026
.tonight...west winds around 5 knots, becoming northeast around
5 knots late this evening, then becoming southeast after
midnight. seas 1 foot or less. wave detail: south 1 foot at
6 seconds.
.friday...south winds 5 to 10 knots. seas 1 foot or less. wave
detail: south 1 foot at 5 seconds.
.friday night...southwest winds around 5 knots, becoming east
after midnight. seas 1 foot or less. wave detail: south 1 foot at
5 seconds.
.saturday...south winds 5 to 10 knots. seas around 2 feet. wave
detail: south 2 feet at 5 seconds.
.saturday night...north winds around 5 knots, becoming east after
midnight. seas around 2 feet in the evening, then 1 foot or less.
wave detail: south 1 foot at 5 seconds.
.sunday...southeast winds around 10 knots, becoming south in the
afternoon. seas around 2 feet. wave detail: south 2 feet at
5 seconds.
.sunday night...northeast winds around 5 knots, becoming
southeast 10 to 15 knots after midnight. seas 1 foot or less,
then around 2 feet after midnight. a slight chance of showers and
thunderstorms.
.monday...southeast winds 10 to 15 knots. seas around 2 feet. a
slight chance of showers and thunderstorms in the morning.
.monday night...southeast winds around 5 knots, increasing to
10 to 15 knots after midnight. seas 2 to 3 feet. a chance of
showers with a slight chance of thunderstorms.
.tuesday...southeast winds 10 to 15 knots. seas 2 to 3 feet. a
slight chance of showers and thunderstorms.
winds and seas higher in and near thunderstorms.
$$
(4/4)
Latest Coastal Waters Forecast by KTBW
Issued 5/21/2026 3:21 PM America/New_York.
Valid through 5/22/2026 4:15 AM America/New_York.
fzus52 ktbw 211921
cwftbw
expires:202605220815;;416121
coastal waters forecast for florida
national weather service tampa bay ruskin fl
321 pm edt thu may 21 2026
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.
gmz873-220815-
waters from englewood to tarpon springs fl out 20 to 60 nm-
321 pm edt thu may 21 2026
.tonight...west winds around 5 knots, becoming east late this
evening and early morning, then becoming southeast late. seas
1 foot or less. wave detail: southeast 1 foot at 4 seconds.
.friday...southeast winds 5 to 10 knots. seas around 2 feet. wave
detail: southeast 2 feet at 4 seconds.
.friday night...southeast winds 5 to 10 knots. seas around
2 feet. wave detail: south 2 feet at 5 seconds.
.saturday...southeast winds 5 to 10 knots. seas around 2 feet.
wave detail: south 2 feet at 5 seconds.
.saturday night...north winds 5 to 10 knots, becoming east after
midnight. seas 1 foot or less, then around 2 feet after midnight.
wave detail: south 1 foot at 5 seconds, becoming southeast 2 feet
at 5 seconds. a slight chance of showers and thunderstorms.
.sunday...southeast winds 5 to 10 knots. seas around 2 feet. wave
detail: southeast 2 feet at 5 seconds.
.sunday night...east winds 5 to 10 knots, increasing to 10 to
15 knots with gusts up to 20 knots after midnight. seas around
2 feet. a chance of showers with a slight chance of
thunderstorms.
.monday...southeast winds 10 to 15 knots. seas 2 to 3 feet.
.monday night...southeast winds 5 to 10 knots, becoming east
10 to 15 knots after midnight. seas 2 to 3 feet. a chance of
showers with a slight chance of thunderstorms.
.tuesday...southeast winds 10 to 15 knots. seas 3 to 4 feet,
occasionally to 5 feet. a slight chance of showers. a slight
chance of thunderstorms in the afternoon.
winds and seas higher in and near thunderstorms.
$$
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