Alert archive / Florida / Tornado Warnings in 2004

Tornado Warning 31, NWS Tampa Bay, FL

August 14, 2004Hillsborough County, Florida

NWS Tampa Bay, FL issued this tornado warning at Aug 14, 2004, 7:13 PM EDT for Hillsborough County, Florida. It was in force for 32 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 14, 2004, 7:13 PM EDT (23:13 UTC)
Expired
Aug 14, 2004, 7:45 PM EDT
In force
32 min
Issued by
NWS Tampa Bay, FL
Area
Counties, with a storm outline in the text

County Hillsborough County, FL

The radar

The Tampa radar (KTBW), 16 km from the middle of the area, began a volume at 23:16 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, 11.2 hours before the alert went out and 16 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 12:00Z on 2004-08-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1978 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tampa Bay, FL at 12:00Z on 2004-08-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 square meters per square second.1939Sfc1 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
1978 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
725 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
74 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.3

Open this sounding in Storm Lab

The text

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

000 
WFUS52 KTBW 142313
TORTBW
FLC057-142345-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
713 PM EDT SAT AUG 14 2004

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN HILLSBOROUGH COUNTY IN FLORIDA.

* UNTIL 745 PM EDT

* AT 713 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 13 MILES SOUTHWEST OF BRANDON...MOVING NORTHEAST AT 25 MPH.

* THE TORNADO WILL AFFECT...
  APOLLO BEACH BY 715 PM EDT.
  GIBSONTON BY 720 PM EDT.
  RIVERVIEW BY 730 PM EDT.
  BLOOMINGDALE BY 735 PM EDT.
  VALRICO BY 740 PM EDT.
  PLANT CITY BY 745 PM EDT.

AT 713 PM EDT...A WEATHER SPOTTERS ALSO REPORTED THE TORNADO NEAR 
BIG BEND ROAD AND I-75


&&

LAT...LON 2779 8253 2765 8240 2789 8203 2806 8219

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 14, 1:14 PM EDTTornado WarningTBWManatee31 min
Aug 14, 1:23 PM EDTTornado WarningTBWSumter37 min
Aug 14, 1:29 PM EDTSpecial Marine WarningTBW31 min
Aug 14, 1:48 PM EDTSpecial Marine WarningTBW57 min
Aug 14, 1:54 PM EDTTornado WarningTBWPasco36 min
Aug 14, 2:18 PM EDTTornado WarningTBWPolk27 min
Aug 14, 2:22 PM EDTTornado WarningTBWManatee23 min
Aug 14, 2:43 PM EDTSpecial Marine WarningTBW47 min
Aug 14, 2:48 PM EDTTornado WarningTBWManatee27 min
Aug 14, 2:50 PM EDTTornado WarningTBWHardee25 min
Aug 14, 2:54 PM EDTTornado WarningTBWSarasota36 min
Aug 14, 3:00 PM EDTTornado WarningTBWPasco30 min
Aug 14, 3:10 PM EDTSpecial Marine WarningTBW65 min
Aug 14, 3:17 PM EDTTornado WarningTBWPinellas13 min
Aug 14, 4:10 PM EDTFlash Flood WarningTBWPasco65 min
Aug 14, 4:29 PM EDTSpecial Marine WarningTBW61 min
Aug 14, 4:36 PM EDTSevere Thunderstorm WarningTBWHighlands24 min
Aug 14, 4:54 PM EDTTornado WarningTBWLevy21 min
Aug 14, 4:58 PM EDTSevere Thunderstorm WarningTBWHighlands32 min
Aug 14, 5:33 PM EDTTornado WarningTBWLevy27 min
Aug 14, 5:36 PM EDTSpecial Marine WarningTBW54 min
Aug 14, 6:26 PM EDTSpecial Marine WarningTBW64 min
Aug 14, 6:32 PM EDTTornado WarningTBWPinellas28 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.