Alert archive / Florida / Tornado Warnings in 2004

Tornado Warning 35, NWS Tampa Bay, FL

September 4, 2004Polk County, Florida

NWS Tampa Bay, FL issued this tornado warning at Sep 4, 2004, 11:11 PM EDT for Polk County, Florida. It was in force for 34 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
Sep 4, 2004, 11:11 PM EDT (03:11 UTC)
Expired
Sep 4, 2004, 11:45 PM EDT
In force
34 min
Issued by
NWS Tampa Bay, FL
Area
Counties, with a storm outline in the text

County Polk County, FL

The radar

The Tampa radar (KTBW), 74 km from the middle of the area, began a volume at 03:15 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.

Did it verify

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this tornado warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Sep 4, 7:55 PM EDTTornado WatchSPC12 hr

The nearest sounding before it

Tampa Bay, FL (KTBW), launched 00:00Z, 3.2 hours before the alert went out and 74 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-pSkew-T log-p diagram, Tampa Bay, FL at 00:00Z on 2004-09-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 00:00Z on 2004-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1308 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
84 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KTBW 050311
TORTBW
FLC105-050345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1109 PM EDT SAT SEP 4 2004

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* TORNADO WARNING FOR...
  WESTERN POLK COUNTY IN FLORIDA.

* UNTIL 1145 PM EDT

* AT 1109 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 12 MILES NORTHEAST OF AUBURNDALE...MOVING SOUTHWEST AT 60
  MPH.

* THE TORNADO WILL AFFECT...
  AUBURNDALE BY 1115 PM EDT.
  CRYSTAL LAKE BY 1120 PM EDT.
  BARTOW BY 1125 PM EDT.
  MULBERRY BY 1130 PM EDT.

TORNADOES ARE ESPECIALLY DANGEROUS AT NIGHT. TAKE COVER NOW MOVE TO
A SMALL INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING.
ABANDON MOBILE HOMES. LEAVE VEHICLES AND GET INTO A DITCH OR LOW
SPOT.

REPORT SEVERE WEATHER OR DAMAGE TO THE NEAREST LAW ENFORCEMENT AGENCY
OR YOUR COUNTY EMERGENCY MANAGEMENT. THEY WILL RELAY YOUR REPORT TO
THE NATIONAL WEATHER SERVICE FORECAST OFFICE IN RUSKIN.


&&

LAT...LON 2818 8158 2828 8169 2799 8205 2771 8195

$$

63

What forecasters said that day

The local office's own words before this tornado warning 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 tornado warning went out at Sep 4, 8:28 PM EDT, 2 hours 43 minutes earlier.

Area forecast discussion, Sep 4, 8:28 PM EDT, 2 hours 43 minutes before
WEST CENTRAL AND SOUTHWEST FLORIDA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
828 PM EDT SAT SEP 4 2004

...TORNADO WATCH ISSUED FOR MOST OF THE FORECAST AREA...

.UPDATE...A TORNADO WATCH HAS BEEN ISSUED FOR ALL COUNTIES EXCEPT
LEE AND CHARLOTTE. HURRICANE FRANCES CONTINUES TO DRIFT VERY SLOWLY
TOWARD THE COAST. THE LARGE EYE APPEARS TO BE GETTING SMALLER...AND
THE CENTRAL PRESSURE HAS COME DOWN A BIT. AIRCRAFT RECON CONFIRM
THE MAXIMUM SUSTAINED WINDS HAVE NOT YET INCREASED...AS REFLECTED
ON THE 8 PM ADVISORY FROM THE NATIONAL HURRICANE CENTER.

RAIN BANDS CONTINUE TO DRIVE RAPIDLY SOUTHWEST ACROSS THE FORECAST
AREA...AND THIS WILL CONTINUE...WITH A GRADUAL INCREASE IN BOTH
FREQUENCY AND INTENSITY FOR THE NEXT 12 HOURS AND MORE. SUSTAINED
TROPICAL STORM FORCE WINDS HAVE ALREADY BEEN REPORTED IN PINELLAS
COUNTY...ALONG WITH REPORTS OF WIND DAMAGE.

THIS HURRICANE IS LARGE AND SLOW MOVING. IT IS IMPORTANT NOT TO
FOCUS ON THE EXACT TRACK OF THE EYE...AS DAMAGING WINDS EXTEND WELL
OUT AWAY FROM THE CENTER. THE SLOW MOVEMENT IS STILL EXPECTED TO
LEAD TO VERY HEAVY RAINFALL AMOUNTS WITH SIGNIFICANT FLOODING.

ZONES HAVE ALREADY BEEN UPDATED TO REFLECT LATEST CONDITIONS AND THE
TORNADO WATCH

&&

.MARINE...CONDITIONS WILL CONTINUE TO DETERIORATE GRADUALLY AND
UNSAFE BOATING CONDITIONS ARE ALREADY IN PLACE. SUSTAINED WINDS
OF TROPICAL STORM FORCE HAVE ALREADY BEEN REPORTED IN RAIN BANDS
WITH HIGHER GUSTS. SMALL CRAFT SHOULD STAY IN PORT.

&&

.TBW WATCHES/WARNINGS/ADVISORIES...
 TROPICAL STORM WARNING FOR MANATEE...SARASOTA...DESOTO...CHARLOTTE
  LEE...CITRUS...HERNANDO...HILLSBOROUGH...LEVY...PASCO...AND
  PINELLAS COUNTIES.
 TORNADO WATCH IN EFFECT UNTIL 8 AM EDT SUNDAY FOR LEVY...CITRUS...
  HERNANDO...PASCO...SUMTER...PINELLAS...HILLSBOROUGH...POLK...
  MANATEE...SARASOTA...HARDEE...DESOTO...AND HIGHLANDS COUNTIES.
 FLOOD WATCH THROUGH SUNDAY EVENING ALL OF FORECAST AREA.
 INLAND HURRICANE WIND WARNING FOR SUMTER...POLK...HIGHLANDS...AND
  HARDEE COUNTIES THROUGH SUNDAY NIGHT.

&&

JILLSON
Hazardous weather outlook, Sep 4, 5:10 AM EDT, 18 hours 1 minute before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
510 AM EDT SAT SEP 4 2004

FLZ039-042-043-048>052-055>057-060>062-065-041208-
CHARLOTTE-CITRUS-DE SOTO-HARDEE-HERNANDO-HIGHLANDS-HILLSBOROUGH-LEE-
LEVY-MANATEE-PASCO-PINELLAS-POLK-SARASOTA-SUMTER-
510 AM EDT SAT SEP 4 2004

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

.DAY ONE...TODAY:

HURRICANE FRANCES IS SLOWLY APPROACHING FLORIDAS EAST COAST AND IS
FORECAST TO MOVE NORTHWESTWARD ACROSS THE STATE TONIGHT AND SUNDAY
AND THEN EXIT OUT OF THE GULF LATE SUNDAY. A TROPICAL STORM WARNING
IS IN EFFECT FOR LEE AND CHARLOTTE COUNTIES WITH A TROPICAL STORM
WATCH IN EFFECT FROM ALONG THE COAST FROM SARASOTA COUNTY TO LEVY. A
FLOOD WATCH IS IN EFFECT FOR ALL COUNTIES. AN INLAND HURRICANE WIND
WARNING IS IN EFFECT FOR SUMTER...POLK...HIGHLANDS AND HARDEE
COUNTIES.

WINDS WILL INCREASE TODAY...REACHING NEAR HURRICANE FORCE OVER THE
INTERIOR AND TROPICAL STORM FORCE NEAR THE COAST.

BANDS OF SHOWERS WILL BE PASSING ACROSS THE STATE TODAY WITH HEAVY
RAIN BEGINNING TO AFFECT SOUTHERN COUNTIES TODAY WITH RAINFALL OF UP
TO 8 INCHES EXPECTED...ALTHOUGH THERE MAY BE LOCALLY HIGHER AMOUNTS.

RESIDENTS CAN EXPECT WIDESPREAD FLOODING. IN POOR DRAINAGE AREAS...
MINOR TO MODERATE PROPERTY DAMAGE IS POSSIBLE...AND SEVERAL MAIN
THOROUGHFARES MAY BE CLOSED. KNOWN INTERSECTIONS WITH POOR
DRAINAGE MAY HAVE WATER LEVELS UP TO SEVERAL FEET. SOME SMALL STREAMS
AND CREEKS WILL SURPASS BANK FULL. LARGER RIVERS WILL RISE.

A SMALL CRAFT ADVISORY IS IN EFFECT TODAY FOR WINDS OR 20 KNOTS AND
HIGHER AND INCREASING TO TROPICAL STORM FORCE LATER IN THE DAY AND
CONTINUING SUNDAY.

HURRICANE LOCAL STATEMENTS WILL BE UPDATED ON A ROUTINE BASIS AS
HURRICANE FRANCES AFFECTS THE AREA AND WILL CONTAIN DETAILED AND UP
TO THE MINUTE INFORMATION.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY:

HURRICANE FRANCES IS EXPECTED TO CONTINUE TO MOVE NORTHWESTWARD
TONIGHT AND SUNDAY WITH HEAVY RAINFALL SPREADING INTO THE CENTRAL AND
NORTHERN ZONES WITH AMOUNTS IN THE 8 TO 12 INCH RANGE AND ISOLATED
AMOUNTS HIGHER.

.SPOTTER CALL TO ACTION STATEMENT...

SPOTTER ACTIVATION WILL NOT BE NEEDED.

&&

FOR ADDITIONAL WEATHER INFORMATION...CHECK OUR WEB SITE AT
HTTP://WWW.SRH.NOAA.GOV/TBW (LOWER CASE)

In the hours before

Local storm report, Sep 4, 9:17 PM EDT, 1 hour 54 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
917 PM EDT SAT SEP 04 2004

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

0530 PM     TROPICAL STORM   VALRICO                 27.95N 82.26W
09/04/2004                   HILLSBOROUGH       FL   AMATEUR RADIO

            SEVERAL LARGE TREE LIMBS BLOWN DOWN IN A SQUALL

0113 PM     TROPICAL STORM   SARASOTA                27.34N 82.55W
09/04/2004                   SARASOTA           FL   TRAINED SPOTTER

            LARGE TREE BLOWN DOWN IN SQUALL. TREE WAS IN ROAD.

1242 PM     TROPICAL STORM   VALRICO                 27.95N 82.26W
09/04/2004                   HILLSBOROUGH       FL   TRAINED SPOTTER

            WIND GUST MEASURED AT 63 MPH

0749 PM     TROPICAL STORM   SAINT PETERSBURG        27.76N 82.67W
09/04/2004                   PINELLAS           FL   TRAINED SPOTTER

            3 - 25 FOOT TREES UPROOTED. LIGHT POLE BENT OVER.
            RAILROAD CROSSING SIGN BENT OVER ON 49TH ST BETWEEN 54TH
            AVE AND 62ND AVE NORTH.

&&

DS
Local storm report, Sep 4, 10:54 PM EDT, 17 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
1054 PM EDT SAT SEP 04 2004

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

1008 PM     TORNADO          2 E KATHLEEN            28.12N 82.00W
09/04/2004                   POLK               FL   BROADCAST MEDIA

            PUBLIC REPORT OF A TORNADO FROM 2 E KATHLEEN TO 3 S
            KATHLEEN FROM 1008-1013 PM EDT. LOCATION AND TIME BASED
            ON RADAR. REPORT RELAYED BY BAY NEWS 9.

&&

NOAH

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 5, 12:31 AM EDTTornado WarningTBWHillsborough, Pasco29 min

Nearby

Tornado Warnings in Florida, 2004Every tornado warning in 2004Tornadoes in 2004

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.