Alert archive / Florida / Tornado Warnings in 2003

Tornado Warning 11, NWS Tampa Bay, FL

July 8, 2003Hillsborough County, Florida

NWS Tampa Bay, FL issued this tornado warning at Jul 8, 2003, 6:29 PM EDT for Hillsborough County, Florida. It was in force for 31 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: Jul 8, 2003, 6:29 PM EDT (22:29 UTC)
Expired: Jul 8, 2003, 7:00 PM EDT
In force: 31 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), 39 km from the middle of the area, began a volume at 22:28 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, 10.5 hours before the alert went out and 39 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: 2284 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 711 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 16 m²/s²
0-3 km storm-relative helicity: 7 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.

300 
WFUS52 KTBW 082229
TORTBW
FLC057-082300-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TAMPA BAY AREA - RUSKIN FL
629 PM EDT TUE JUL 8 2003

THE NATIONAL WEATHER SERVICE IN RUSKIN HAS ISSUED A

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

* UNTIL 700 PM EDT

* AT 629 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO OVER CENTRAL HILLSBOROUGH COUNTY...MOVING NORTHEAST AT 10
  MPH.

* THE TORNADO WILL AFFECT...
  SEFFNER BY 630 PM EDT.

THIS IS A DANGEROUS STORM MOVE INTO THE INTERIOR ROOM ON THE LOWEST
FLOOR OF A STURDY BUILDING...AWAY FROM WINDOWS. COVER YOUR HEAD AND
BODY WITH PILLOWS OR BLANKETS.

IF CAUGHT OUTSIDE...MOVE INTO A STURDY BUILDING. AS A LAST RESORT...
SEEK SHELTER IN A CULVERT...DITCH...OR LOW SPOT...AND COVER YOUR HEAD
WITH YOUR HANDS.


&&

LAT...LON 2801 8238 2791 8221 2810 8213 2814 8225

$$

57

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 7, 9:45 PM EDT	Special Marine Warning	TBW		30 min
Jul 8, 4:37 PM EDT	Severe Thunderstorm Warning	TBW	Manatee	38 min
Jul 8, 6:06 PM EDT	Severe Thunderstorm Warning	TBW	Hillsborough	39 min
Jul 8, 6:11 PM EDT	Special Marine Warning	TBW		49 min
Jul 8, 6:47 PM EDT	Severe Thunderstorm Warning	TBW	Hillsborough	43 min
Jul 8, 7:02 PM EDT	Severe Thunderstorm Warning	TBW	Pasco	28 min

Nearby

Tornado Warnings in Florida, 2003 Every tornado warning in 2003 Tornadoes in 2003

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.