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FZUS52 KTBW 220051
CWFTBW

Coastal Waters Forecast for Florida
National Weather Service Tampa Bay Area - Ruskin FL
851 PM EDT Mon May 21 2018

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.

GMZ800-220830-
SYNOPSIS FOR THE COASTAL WATERS FROM BONITA BEACH TO SUWANNEE RIVER-
851 PM EDT Mon May 21 2018

.SYNOPSIS...A trough of low pressure over the east central Gulf of
Mexico combined with high pressure over the Atlantic will continue to
support a southeast to southerly wind flow over the Gulf waters
tonight through the end of the week. Wind and seas should remain
below 15 knots and 5 feet through the period though wind and seas
will be higher in the vicinity of thunderstorms each day. An area of
low pressure may develop over the Gulf during the upcoming weekend
and all mariners should continue to monitor the progress of this
system in the coming days.

$$

GMZ830-220830-
Tampa Bay waters-
851 PM EDT Mon May 21 2018

.REST OF TONIGHT...Southeast winds around 10 knots. Bay and inland
waters a light chop. Scattered showers and isolated thunderstorms
through midnight, then isolated showers after midnight.
.TUESDAY...Southeast winds around 10 knots. Bay and inland waters a
light chop. Isolated showers in the morning, then numerous showers
and isolated thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds around 10 knots. Bay and inland
waters a light chop. Numerous showers and isolated thunderstorms in
the evening.
.WEDNESDAY...Southeast winds around 10 knots then becoming south
around 5 knots late in the afternoon. Bay and inland waters a light
chop. Scattered showers and isolated thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds around 5 knots. Bay and inland
waters smooth. Scattered showers and isolated thunderstorms.
.THURSDAY...Southeast winds around 5 knots. Bay and inland waters
smooth. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...East winds around 10 knots. Bay and inland waters
a light chop. Scattered showers and isolated thunderstorms.
.FRIDAY...Southeast winds around 10 knots. Bay and inland waters a
light chop. Scattered showers in the morning, then numerous showers
and isolated thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Bay and inland
waters a moderate chop. Numerous showers and isolated thunderstorms
in the evening, then scattered showers after midnight.
.SATURDAY...Southeast winds 10 to 15 knots. Bay and inland waters a
moderate chop. Numerous showers and isolated thunderstorms.

$$

GMZ836-220830-
Charlotte Harbor and Pine Island Sound-
851 PM EDT Mon May 21 2018

.REST OF TONIGHT...East winds around 10 knots. Bay and inland waters
a light chop. Isolated showers after midnight.
.TUESDAY...Southeast winds around 10 knots. Bay and inland waters a
light chop. Isolated showers in the morning, then scattered showers
and isolated thunderstorms in the afternoon.
.TUESDAY NIGHT...East winds around 10 knots. Bay and inland waters a
light chop. Isolated thunderstorms in the evening.
.WEDNESDAY...Southeast winds around 10 knots then becoming south
around 5 knots late in the afternoon. Bay and inland waters a light
chop. Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...Southeast winds around 5 knots. Bay and inland
waters smooth. Scattered showers and isolated thunderstorms.
.THURSDAY...East winds around 10 knots. Bay and inland waters a
light chop. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...Southeast winds around 10 knots. Bay and inland
waters a light chop. Scattered showers and isolated thunderstorms.
.FRIDAY...Southeast winds around 15 knots. Bay and inland waters a
moderate chop. Numerous showers and isolated thunderstorms.
.FRIDAY NIGHT...Southeast winds around 15 knots. Bay and inland
waters a moderate chop. Numerous showers and isolated thunderstorms
in the evening, then scattered showers after midnight.
.SATURDAY...Southeast winds 10 to 15 knots. Bay and inland waters a
moderate chop. Numerous showers and isolated thunderstorms.

$$

GMZ856-220830-
Coastal waters from Bonita Beach to Englewood FL out 20 NM-
851 PM EDT Mon May 21 2018

.REST OF TONIGHT...East winds 10 to 15 knots. Seas 2 to 3 feet. Bay
and inland waters a moderate chop. Scattered showers and isolated
thunderstorms.
.TUESDAY...Southeast winds around 15 knots diminishing to 5 to
10 knots late in the afternoon. Seas 2 to 3 feet. Bay and inland
waters a moderate chop. Scattered showers and isolated
thunderstorms.
.TUESDAY NIGHT...East winds around 10 knots. Seas 2 feet. Bay and
inland waters a light chop. Scattered showers and isolated
thunderstorms in the evening.
.WEDNESDAY...Southeast winds around 10 knots. Seas 2 feet. Bay and
inland waters a light chop. Scattered showers and isolated
thunderstorms in the afternoon.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas 2 feet. Bay
and inland waters a light chop. Scattered showers and isolated
thunderstorms.
.THURSDAY...East winds around 10 knots. Seas 2 feet. Bay and inland
waters a light chop. Scattered showers and isolated thunderstorms.
.THURSDAY NIGHT...East winds 5 to 10 knots then becoming southeast
around 15 knots after midnight. Seas 2 feet. Bay and inland waters a
moderate chop. Scattered showers and isolated thunderstorms.
.FRIDAY...Southeast winds 10 to 15 knots. Seas 2 to 3 feet. Bay and
inland waters a moderate chop. Numerous showers and isolated
thunderstorms.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots increasing to around
20 knots after midnight. Seas 2 feet. Bay and inland waters choppy.
Numerous showers in the evening, then scattered showers and isolated
thunderstorms after midnight.
.SATURDAY...Southeast winds 10 to 15 knots increasing to around
20 knots in the afternoon. Seas building to 3 to 5 feet. Bay and
inland waters choppy. Numerous showers and isolated thunderstorms.

$$

GMZ876-220830-
Waters from Bonita Beach to Englewood FL out 20 to 60 NM-
851 PM EDT Mon May 21 2018

.REST OF TONIGHT...East winds around 15 knots. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.TUESDAY...Southeast winds around 15 knots. Seas 2 to 4 feet.
Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT...Southeast winds around 15 knots. Seas 2 to 4 feet.
Scattered showers and isolated thunderstorms.
.WEDNESDAY...Southeast winds around 15 knots diminishing to 5 to
10 knots late in the afternoon. Seas 2 to 3 feet. Scattered showers
and isolated thunderstorms.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas 2 feet.
Scattered showers and isolated thunderstorms.
.THURSDAY...East winds around 15 knots. Seas 2 feet. Scattered
showers and isolated thunderstorms.
.THURSDAY NIGHT...Southeast winds around 15 knots. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.FRIDAY...Southeast winds around 20 knots. Seas 2 to 3 feet.
Numerous showers and isolated thunderstorms.
.FRIDAY NIGHT...Southeast winds around 20 knots. Seas 2 to 3 feet.
Numerous showers and isolated thunderstorms in the evening, then
scattered showers after midnight.
.SATURDAY...Southeast winds around 20 knots. Seas 3 to 5 feet.
Numerous showers and isolated thunderstorms.

$$

GMZ853-220830-
Coastal waters from Englewood to Tarpon Springs FL out 20 NM-
851 PM EDT Mon May 21 2018

.REST OF TONIGHT...Southeast winds 10 to 15 knots. Seas 2 feet. Bay
and inland waters a moderate chop. Scattered showers and isolated
thunderstorms.
.TUESDAY...Southeast winds 10 to 15 knots diminishing to 5 to 10
knots in the afternoon. Seas 2 feet. Bay and inland waters a
moderate
chop. Scattered showers and isolated thunderstorms in the afternoon.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas 2 feet. Bay
and inland waters a light chop. Scattered showers and isolated
thunderstorms in the evening.
.WEDNESDAY...Southeast winds around 10 knots then becoming south
around 5 knots late in the afternoon. Seas 2 feet. Bay and inland
waters a light chop. Scattered showers and isolated thunderstorms.
.WEDNESDAY NIGHT...South winds around 5 knots then becoming
southeast around 5 knots in the late evening and overnight. Seas
2 feet. Bay and inland waters smooth. Isolated thunderstorms.
.THURSDAY...Southeast winds around 10 knots. Seas 2 feet. Bay and
inland waters a light chop. Scattered showers and isolated
thunderstorms.
.THURSDAY NIGHT...East winds around 10 knots. Seas 2 feet. Bay and
inland waters a light chop. Scattered showers and isolated
thunderstorms.
.FRIDAY...Southeast winds around 15 knots. Seas 2 feet. Bay and
inland waters a moderate chop. Scattered showers in the morning,
then numerous showers and isolated thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds around 15 knots. Seas 2 feet or
less. Bay and inland waters a moderate chop. Scattered showers and
isolated thunderstorms.
.SATURDAY...Southeast winds around 20 knots. Seas 2 to 3 feet. Bay
and inland waters choppy. Numerous showers and isolated
thunderstorms.

$$

GMZ873-220830-
Waters from Englewood to Tarpon Springs FL out 20 to 60 NM-
851 PM EDT Mon May 21 2018

.REST OF TONIGHT...Southeast winds around 15 knots. Seas 2 to
3 feet. Scattered showers and isolated thunderstorms.
.TUESDAY...Southeast winds around 15 knots. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.TUESDAY NIGHT...Southeast winds 5 to 10 knots increasing to around
15 knots in the late evening and overnight. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.WEDNESDAY...Southeast winds around 15 knots diminishing to 5 to
10 knots in the afternoon. Seas 2 to 3 feet. Scattered showers
and isolated thunderstorms.
.WEDNESDAY NIGHT...Southeast winds around 10 knots. Seas 2 feet.
Scattered showers and isolated thunderstorms.
.THURSDAY...Southeast winds around 10 knots. Seas 2 feet. Scattered
showers and isolated thunderstorms.
.THURSDAY NIGHT...East winds 5 to 10 knots increasing to around
15 knots toward morning. Seas 2 feet. Scattered showers and isolated
thunderstorms.
.FRIDAY...Southeast winds around 15 knots. Seas 2 to 3 feet.
Scattered showers and isolated thunderstorms.
.FRIDAY NIGHT...Southeast winds increasing to around 20 knots. Seas
2 feet. Scattered showers in the evening, then numerous showers and
isolated thunderstorms after midnight.
.SATURDAY...Southeast winds around 20 knots. Seas 2 to 4 feet.
Numerous showers and isolated thunderstorms.

$$

GMZ850-220830-
Coastal waters from Tarpon Springs to Suwannee River FL out 20 NM-
851 PM EDT Mon May 21 2018

.REST OF TONIGHT...Southeast winds 5 to 10 knots increasing to
10 to 15 knots in the late evening and overnight. Seas 2 feet. Bay
and inland waters a moderate chop. Scattered showers and isolated
thunderstorms.
.TUESDAY...Southeast winds around 10 knots. Seas 2 feet. Bay and
inland waters a light chop. Isolated thunderstorms.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas 2 feet. Bay
and inland waters a light chop. Scattered showers and isolated
thunderstorms in the evening.
.WEDNESDAY...Southeast winds around 10 knots then becoming southwest
around 5 knots late in the afternoon. Seas 2 feet. Bay and inland
waters a light chop. Isolated thunderstorms in the afternoon.
.WEDNESDAY NIGHT...West winds around 5 knots then becoming north
around 5 knots late in the evening, then becoming east after
midnight. Seas 2 feet or less. Bay and inland waters smooth.
Isolated thunderstorms.
.THURSDAY...Southeast winds around 10 knots. Seas 2 feet or less.
Bay and inland waters a light chop. Scattered showers and isolated
thunderstorms.
.THURSDAY NIGHT...Southeast winds 5 to 10 knots then becoming east
10 to 15 knots toward morning. Seas 2 feet. Bay and inland waters a
moderate chop. Scattered showers and isolated thunderstorms.
.FRIDAY...East winds 10 to 15 knots. Seas 2 feet. Bay and inland
waters a moderate chop. Scattered showers in the morning, then
numerous showers and isolated thunderstorms in the afternoon.
.FRIDAY NIGHT...Southeast winds 10 to 15 knots. Seas 2 feet. Bay and
inland waters a moderate chop. Numerous showers and isolated
thunderstorms in the evening, then scattered showers and isolated
thunderstorms after midnight.
.SATURDAY...Southeast winds 10 to 15 knots increasing to around
20 knots in the late morning and afternoon. Seas 2 feet. Bay and
inland waters choppy. Numerous showers and isolated thunderstorms.

$$

GMZ870-220830-
Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM-
851 PM EDT Mon May 21 2018

.REST OF TONIGHT...Southeast winds around 15 knots. Seas 2 feet.
Scattered showers and isolated thunderstorms.
.TUESDAY...Southeast winds around 15 knots diminishing to 5 to
10 knots in the afternoon. Seas 2 feet. Isolated thunderstorms.
.TUESDAY NIGHT...Southeast winds around 10 knots. Seas 2 feet.
Scattered showers and isolated thunderstorms in the evening.
.WEDNESDAY...Southeast winds around 10 knots. Seas 2 to 3 feet.
Isolated thunderstorms.
.WEDNESDAY NIGHT...South winds around 5 knots then becoming east in
the late evening and overnight. Seas 2 feet. Isolated thunderstorms.
.THURSDAY...Southeast winds around 10 knots. Seas 2 feet. Isolated
thunderstorms.
.THURSDAY NIGHT...East winds 5 to 10 knots increasing to around
15 knots toward morning. Seas 2 feet. Scattered showers and isolated
thunderstorms.
.FRIDAY...East winds around 15 knots. Seas 2 feet. Scattered showers
and isolated thunderstorms.
.FRIDAY NIGHT...Southeast winds around 20 knots. Seas 2 feet.
Scattered showers in the evening, then numerous showers and
isolated thunderstorms after midnight.
.SATURDAY...Southeast winds around 20 knots. Seas 2 to 3 feet.
Numerous showers and isolated thunderstorms.

$$



WHUS52 KTBW 211927
SMWTBW
GMZ850-212030-
/O.NEW.KTBW.MA.W.0025.180521T1927Z-180521T2030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Special Marine Warning
National Weather Service Tampa Bay Area Ruskin FL
327 PM EDT MON MAY 21 2018

The National Weather Service in Ruskin has issued a

* Special Marine Warning for...
Coastal waters from Tarpon Springs to Suwannee River FL out 20
NM...

* Until 430 PM EDT.

* At 327 PM EDT, a strong thunderstorm was located near Aripeka,
moving northwest at 10 knots.

HAZARD...Wind gusts 34 knots or greater.

SOURCE...Radar.

IMPACT...Expect wind gusts in excess of 40 knots, suddenly higher
waves, frequent lightning, and heavy downpours. Make sure
all on board are wearing life jackets.

* Locations impacted include...
Bayport, Hernando Beach and Aripeka.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Move to safe harbor until hazardous weather passes.

&&

LAT...LON 2847 8260 2829 8275 2851 8296 2869 8272
TIME...MOT...LOC 1927Z 139DEG 11KT 2839 8264

HAIL...0.00IN
WIND...>34KTS

$$

TBW

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