Alert archive / Florida / Special Weather Statements in 2013

Special Weather Statement, NWS Tampa Bay, FL

August 9, 2013Citrus County, Florida

NWS Tampa Bay, FL issued this special weather statement at Aug 9, 2013, 4:40 PM EDT for Citrus County, Florida. It was in force for 50 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Aug 9, 2013, 4:40 PM EDT (20:40 UTC)
Expired: Aug 9, 2013, 5:30 PM EDT
In force: 50 min
Issued by: NWS Tampa Bay, FL

County Citrus County, FL

The radar

The Tampa radar (KTBW), 151 km from the middle of the area, began a volume at 20:42 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 12:00Z, 8.7 hours before the alert went out and 151 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 873 J/kg
Mixed-layer CIN: -23 J/kg
Mixed-layer LCL: 842 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: -39 m²/s²
0-3 km storm-relative helicity: -13 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.2

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tampa Bay, FL wrote its last area forecast discussion before this special weather statement went out at Aug 9, 3:25 PM EDT, 1 hour 15 minutes earlier.

Area forecast discussion, Aug 9, 3:25 PM EDT, 1 hour 15 minutes before

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
325 PM EDT FRI AUG 9 2013

.SHORT TERM (TONIGHT-SUNDAY)...
RADAR HAS BECOME QUITE ACTIVE SO FAR THIS AFTERNOON WITH STRONG
STORMS OVER SOUTHWEST FLORIDA AND THE ADJACENT GULF WATERS IN
ADDITION TO OTHER CONVECTIVE ACTIVITY SCATTERED ACROSS THE
FORECAST AREA. WITH THE WEST COAST SEA BREEZE AND OTHER
BOUNDARIES CLEARLY SEEN CLOSE TO THE COAST AND AROUND THE TAMPA
BAY AREA ALREADY...EXPECT ANOTHER ACTIVE LATE AFTERNOON AND
EVENING...WITH ACTIVITY WINDING DOWN A FEW HOURS AFTER SUNSET.

THE UPPER LEVEL LOW CURRENTLY SPINNING OVER THE SOUTHEASTERN GULF
OF MEXICO WILL CONTINUE TO MOVE WESTWARD WHILE THE RIDGE AXIS
REMAINS OVER NORTHERN FLORIDA...KEEPING SOUTHEAST WINDS IN PLACE
ON SATURDAY. MODELS ARE SHOWING SOME DRIER AIR MAKING ITS WAY INTO
THE AREA FROM THE SOUTHEAST...SO POPS ARE A BIT LOWER FOR SATURDAY
AFTERNOON...BUT THE BEST CHANCES WILL STILL BE CLOSER TO THE
WESTERN SIDE OF THE STATE. THE DRIER AIR WILL REMAIN IN PLACE FOR
SUNDAY AFTERNOON...SO LEFT JUST ISOLATED RAIN CHANCES IN THE
FORECAST FOR ALL AREAS. TEMPERATURES WILL LIKELY END UP BEING A
FEW DEGREES WARMER FOR SUNDAY GIVEN THE LACK OF RAIN TO COOL
THINGS DOWN.

.LONG TERM (SUNDAY NIGHT-THURSDAY)...
MID/UPPER LEVEL RIDGING WILL STRETCH WEST TO EAST ACROSS FLORIDA
EARLY IN THE PERIOD THEN THE NEXT TROUGH WILL DEEPEN OVER THE
EASTERN U.S. DURING THE SECOND HALF OF NEXT WEEK. MEANWHILE AT THE
SURFACE...THE SUBTROPICAL RIDGE WILL BE ACROSS NORTH CENTRAL FLORIDA
EARLY IN THE WEEK WITH AN EAST TO SOUTHEAST FLOW ACROSS THE REGION.
DURING THE SECOND HALF OF THE WEEK THE RIDGE AXIS WILL BECOME
SUPPRESSED SOUTH WITH A MORE SOUTH TO SOUTHWEST FLOW BECOMING
ESTABLISHED. LOOKS LIKE A PRETTY TYPICAL SUMMERTIME PATTERN FOR
EARLY IN THE WEEK WITH SCATTERED MAINLY AFTERNOON AND EVENING STORMS
MONDAY AND TUESDAY. WEDNESDAY WILL BE THE TRANSITION DAY WITH
SLIGHTLY DRIER AIR MOVING IN...BUT STILL EXPECTING SCATTERED
CONVECTION MAINLY OVER INLAND AREAS DURING THE AFTERNOON AND
EVENING. ON THURSDAY THE MODELS ARE SHOWING A WAVE MOVING THROUGH
THE WESTERN CARIBBEAN WITH DEEP MOISTURE BEGINNING TO SPREAD NORTH.
THIS SHOULD LEAD TO MORE SCATTERED STORMS ESPECIALLY DURING THE
AFTERNOON AND EVENING...BUT COULD BE ALMOST ANYTIME ACROSS THE
SOUTH. TEMPERATURES WILL REMAIN NEAR NORMAL THROUGH THE PERIOD WITH
DAYTIME HIGHS MOSTLY IN THE LOWER TO MID 90S AND OVERNIGHT LOWS
MAINLY IN THE 70S.

&&

.AVIATION...
SCATTERED SHRA/TSRA EXPECTED TO CONTINUE INTO THE EVENING AT THE
TERMINALS...AND WILL AMEND AS COVERAGE/TIMING BECOMES MORE CLEAR.
SHOULD SEE SHRA/TSRA END BY 00/01Z SATURDAY...WITH VFR CONDITIONS
THEN EXPECTED OVERNIGHT AND THROUGH THE MORNING ON SATURDAY.

&&

.MARINE...
THE MAIN CONCERN THROUGH THE REST OF FRIDAY AFTERNOON AND EVENING
WILL BE STRONG THUNDERSTORMS OVER THE WATERS...ESPECIALLY OVER
TAMPA BAY AND THE NEAR SHORE WATERS...WITH THE MOST FAVORABLE
TIME FRAME FOR STRONG THUNDERSTORMS BETWEEN 4 PM AND 7 PM.
ACTIVITY SHOULD WIND DOWN A FEW HOURS AFTER SUNSET.

OUTSIDE OF CONVECTION...WIND SPEEDS WILL GENERALLY REMAIN 15
KNOTS OR LESS THROUGH THE NEXT SEVERAL DAYS WITH SEAS AROUND 3
FEET OR LESS.

&&

.FIRE WEATHER...
NO CONCERNS.

&&

.PRELIMINARY POINT TEMPS/POPS...
TPA  76  92  77  93 /  40  40  20  20
FMY  74  93  76  93 /  40  30  20  20
GIF  74  94  75  96 /  30  30  10  20
SRQ  75  92  77  92 /  40  30  20  20
BKV  72  93  73  95 /  40  40  20  20
SPG  78  92  79  92 /  50  40  20  20

&&

.TBW WATCHES/WARNINGS/ADVISORIES...
FL...NONE.
GULF WATERS...NONE.
&&

SHORT TERM/MARINE/FIRE WEATHER...05/CARLISLE
AVIATION...21/JELSEMA
LONG TERM...69/CLOSE

Hazardous weather outlook, Aug 9, 5:30 AM EDT, 11 hours 10 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY RUSKIN FL
530 AM EDT FRI AUG 9 2013

FLZ039-042-043-048>052-055>057-060>062-065-GMZ830-850-853-856-870-
873-876-092200-
LEVY-CITRUS-SUMTER-HERNANDO-PASCO-PINELLAS-HILLSBOROUGH-POLK-
MANATEE-HARDEE-HIGHLANDS-SARASOTA-DESOTO-CHARLOTTE-LEE-
TAMPA BAY WATERS-TARPON SPRINGS TO SUWANNEE RIVER OUT 20 NM-
ENGLEWOOD TO TARPON SPRINGS OUT 20 NM-
BONITA BEACH TO ENGLEWOOD OUT 20 NM-
TARPON SPRINGS TO SUWANNEE RIVER OUT 20 TO 60 NM-
ENGLEWOOD TO TARPON SPRINGS OUT 20 TO 60 NM-
BONITA BEACH TO ENGLEWOOD OUT 20 TO 60 NM-
530 AM EDT FRI AUG 9 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR WEST CENTRAL AND SOUTHWEST
FLORIDA.

.DAY ONE...TODAY AND TONIGHT.

...THUNDERSTORM IMPACT...
AN EAST TO SOUTHEAST FLOW COMBINED WITH AMPLE MOISTURE AND
INSTABILITY WILL LEAD TO SCATTERED SHOWERS AND THUNDERSTORMS
DEVELOPING OVER THE INTERIOR DURING THE MIDDAY AND EARLY AFTERNOON
HOURS THEN MOVING TOWARDS THE WEST COAST DURING THE MID TO LATE
AFTERNOON INTO THE EVENING. THE GREATEST HAZARDS WILL BE LOCALLY
HEAVY RAINFALL...GUSTY WINDS UP TO 50 MPH...AND FREQUENT CLOUD TO
GROUND LIGHTNING STRIKES.

.DAYS TWO THROUGH SEVEN...SATURDAY THROUGH THURSDAY.

...THUNDERSTORM IMPACT...
SUFFICIENT MOISTURE AND INSTABILITY WILL CONTINUE TO SUPPORT
SCATTERED SHOWERS AND THUNDERSTORMS ALONG THE SEA BREEZE
BOUNDARIES EACH DAY DURING THE AFTERNOON AND EVENING HOURS.
LOCALLY HEAVY RAINS...STRONG GUSTY WINDS...AND FREQUENT LIGHTNING
STRIKES WILL BE POSSIBLE WITH THE STORMS.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED TODAY.

PRC

In the hours before

Special weather statement, Aug 9, 2:38 PM EDT, 2 hours 2 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
238 PM EDT FRI AUG 9 2013

FLZ060-062-065-091945-
SARASOTA-CHARLOTTE-LEE-
238 PM EDT FRI AUG 9 2013

...A SIGNIFICANT WEATHER ADVISORY HAS BEEN ISSUED FOR CHARLOTTE...LEE
AND SOUTH CENTRAL SARASOTA COUNTIES FOR A LINE OF STRONG
THUNDERSTORMS WITH STRONG WIND GUSTS VALID UNTIL 345 PM EDT...

AT 238 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES A
LINE OF STRONG THUNDERSTORMS LOCATED ALONG A LINE EXTENDING FROM
CAPE CORAL TO 6 MILES NORTHEAST OF BONITA SPRINGS...MOVING NORTH AT
15 MPH WILL AFFECT CAPTIVA. THESE STORMS WILL AFFECT FORT MYERS
BEACH...LOVERS KEY STATE PARK AND BONITA SPRINGS.

GUSTY WINDS OF 45 TO 55 MPH CAN BE EXPECTED WHICH CAN CAUSE UNSECURED
OBJECTS TO BLOW AROUND...SNAP TREE LIMBS AND CAUSE POWER OUTAGES.
FREQUENT TO CONTINUOUS LIGHTNING IS EXPECTED. TO BE SAFE GO INDOORS
IMMEDIATELY. IF CAUGHT OUTSIDE...FIND A LOW SPOT...AND STAY AWAY FROM
TALL OBJECTS. TORRENTIAL RAINS WILL REDUCE VISIBILITY TO NEAR ZERO
AND WILL CAUSE PONDING OF WATER ON ROADWAYS.

&&

LAT...LON 2632 8185 2647 8198 2641 8207 2647 8218
      2667 8227 2677 8227 2692 8237 2694 8213
      2692 8217 2678 8214 2676 8223 2672 8225
      2671 8213 2668 8210 2680 8207 2694 8209
      2697 8156 2642 8156 2641 8166 2631 8166
TIME...MOT...LOC 1838Z 162DEG 12KT 2659 8208 2643 8172

Local storm report, Aug 9, 2:42 PM EDT, 1 hour 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
242 PM EDT FRI AUG 09 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0230 PM     MARINE TSTM WIND 2 SW CAPE CORAL         26.55N 82.01W
08/09/2013  M55 MPH          LEE                FL   MESONET

            WIND GUST OF 48 KTS MEASURED AT THE CAPE HARBOUR MARINA.

&&

MCKAUGHAN

Local storm report, Aug 9, 3:13 PM EDT, 1 hour 27 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
313 PM EDT FRI AUG 09 2013

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0230 PM     MARINE TSTM WIND 3 SSW CAPE CORAL        26.53N 82.00W
08/09/2013  M42.00 MPH       LEE                FL   MESONET

            36 KT GUST RECORDED AT WEATHERFLOW STATION

&&

MCKAUGHAN

Special weather statement, Aug 9, 4:30 PM EDT, 10 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
430 PM EDT FRI AUG 9 2013

FLZ060-092100-
SARASOTA-
430 PM EDT FRI AUG 9 2013

...STRONG THUNDERSTORMS WILL AFFECT NORTHERN SARASOTA COUNTY...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES THUNDERSTORMS
LOCATED ALONG A LINE EXTENDING FROM DESOTO LAKES TO 5 MILES EAST OF
NOKOMIS...OR ALONG A LINE EXTENDING FROM SARASOTA TO 5 MILES EAST OF
VENICE...MOVING WEST AT 15 MPH. THIS CLUSTER OF STORMS WILL AFFECT
DESOTO LAKES...FRUITVILLE...MYAKKA RIVER STATE PARK AND BEE
RIDGE...UNTIL 500 PM EDT.

THIS INCLUDES INTERSTATE 75 BETWEEN EXITS 193 AND 210.

GUSTY WINDS UP TO 45 MPH ALONG WITH FREQUENT LIGHTNING IS EXPECTED.
TO BE SAFE GO INDOORS IMMEDIATELY. IF CAUGHT OUTSIDE...FIND A LOW
SPOT...AND STAY AWAY FROM TALL OBJECTS. TORRENTIAL RAINS WILL REDUCE
VISIBILITY TO NEAR ZERO AND WILL CAUSE PONDING OF WATER ON ROADWAYS.

&&

LAT...LON 2739 8262 2737 8261 2734 8256 2737 8257
      2739 8257 2739 8235 2725 8225 2721 8226
      2721 8222 2711 8215 2711 8248 2723 8253
      2727 8258 2730 8258 2738 8265
TIME...MOT...LOC 2030Z 088DEG 13KT 2737 8253 2712 8237

Special weather statement, Aug 9, 4:40 PM EDT, 0 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
440 PM EDT FRI AUG 9 2013

FLZ039-042-092130-
LEVY-CITRUS-
440 PM EDT FRI AUG 9 2013

...STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN CITRUS AND SOUTH
CENTRAL LEVY COUNTIES...

NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATES A STRONG
THUNDERSTORM LOCATED NEAR CITRONELLE...OR NEAR CRYSTAL
RIVER...MOVING WEST AT 10 MPH. THIS STRONG STORM WILL AFFECT
CRYSTAL RIVER...CRYSTAL RIVER AIRPORT AND OZELLO...UNTIL 530 PM EDT.

GUSTY WINDS UP TO 45 MPH ALONG WITH FREQUENT LIGHTNING IS EXPECTED.
TO BE SAFE GO INDOORS IMMEDIATELY. IF CAUGHT OUTSIDE...FIND A LOW
SPOT...AND STAY AWAY FROM TALL OBJECTS.

&&

LAT...LON 2924 8288 2915 8257 2911 8253 2905 8253
      2904 8246 2883 8247 2880 8275 2887 8274
      2889 8270 2893 8271 2899 8277 2903 8277
      2907 8283 2914 8281 2915 8288
TIME...MOT...LOC 2039Z 093DEG 11KT 2896 8260

The office that day

Everything else NWS Tampa Bay, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 9, 1:53 PM EDT	Special Marine Warning	TBW		2 hr
Aug 9, 2:38 PM EDT	Special Weather Statement	TBW	Charlotte, Lee	67 min
Aug 9, 2:47 PM EDT	Severe Thunderstorm Warning	TBW	Charlotte, Lee	58 min
Aug 9, 4:11 PM EDT	Special Marine Warning	TBW		49 min
Aug 9, 4:30 PM EDT	Special Weather Statement	TBW	Sarasota	30 min
Aug 9, 5:56 PM EDT	Special Weather Statement	TBW	Pinellas	49 min
Aug 9, 6:02 PM EDT	Severe Thunderstorm Warning	TBW	Hillsborough, Pinellas	43 min
Aug 9, 6:04 PM EDT	Tornado Warning	TBW	Hillsborough, Pinellas	26 min
Aug 9, 6:25 PM EDT	Special Marine Warning	TBW		65 min
Aug 9, 6:27 PM EDT	Special Weather Statement	TBW	Pasco	33 min

Nearby

Special Weather Statements in Florida, 2013 Every special weather statement in 2013

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.