Alert archive / Louisiana / Tornado Warnings in 2003

Tornado Warning 28, NWS Shreveport, LA

May 13, 2003Bienville Parish, Louisiana

NWS Shreveport, LA issued this tornado warning at May 13, 2003, 11:08 PM CDT for Bienville Parish, Louisiana. It was in force for 67 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
May 13, 2003, 11:08 PM CDT (04:08 UTC)
Expired
May 14, 2003, 12:15 AM CDT
In force
67 min
Issued by
NWS Shreveport, LA
Area
Counties, with a storm outline in the text

County Bienville Parish, LA

The radar

The Shreveport radar (KSHV), 92 km from the middle of the area, began a volume at 04:10 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 watch it was issued in

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

IssuedProductOfficeLasted
May 13, 8:30 PM CDTSevere Thunderstorm WatchSPC5 hr
May 13, 10:45 PM CDTTornado WatchSPC5 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 4.1 hours before the alert went out and 84 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, Shreveport, LA at 00:00Z on 2003-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2326 joules per kilogram.LCLEL10008507005003002001001 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, Shreveport, LA at 00:00Z on 2003-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 142 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
2326 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
1006 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
142 m²/s²
0-3 km storm-relative helicity
401 m²/s²
Significant tornado parameter
3.2
Supercell composite
18.5

Open this sounding in Storm Lab

The text

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

317 
WFUS54 KSHV 140408
TORSHV
LAC013-140515-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1108 PM CDT TUE MAY 13 2003

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  BIENVILLE PARISH IN NORTHWEST LOUISIANA

* UNTIL 1215 AM CDT

* AT 1108 PM CDT...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED A TORNADO OVER EAST CENTRAL BIENVILLE PARISH...OR
  ABOUT 12 MILES SOUTH OF ARCADIA...MOVING SOUTHEAST AT 35 MPH.

REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
FOR...
  BIENVILLE PARISH IN NORTHWEST LOUISIANA
UNTIL 1215 AM CDT.

LAT...LON 3230 9284 3242 9299 3251 9288 3245 9286
          3244 9277

$$

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 13, 9:34 PM CDTTornado WarningSHVWebster26 min
May 13, 9:44 PM CDTTornado WarningSHVClaiborne61 min
May 13, 9:48 PM CDTSevere Thunderstorm WarningSHVCaddo42 min
May 13, 10:05 PM CDTTornado WarningSHVCaddo40 min
May 13, 10:20 PM CDTSevere Thunderstorm WarningSHVWebster40 min
May 13, 10:24 PM CDTSevere Thunderstorm WarningSHVUnion51 min
May 13, 10:35 PM CDTSevere Thunderstorm WarningSHVBienville, Lincoln55 min
May 13, 10:44 PM CDTSevere Thunderstorm WarningSHVBossier, Caddo, Claiborne61 min
May 13, 11:08 PM CDTTornado WarningSHVBossier, Caddo52 min
May 13, 11:11 PM CDTSevere Thunderstorm WarningSHVJackson64 min
May 13, 11:19 PM CDTTornado WarningSHVJackson56 min
May 13, 11:28 PM CDTSevere Thunderstorm WarningSHVWebster62 min
May 13, 11:48 PM CDTSevere Thunderstorm WarningSHVBienville57 min
May 14, 12:00 AM CDTTornado WarningSHVCaddo, De Soto, Red River60 min
May 14, 6:02 PM CDTSevere Thunderstorm WarningSHVClaiborne, Webster58 min

Nearby

Tornado Warnings in Louisiana, 2003Every tornado warning in 2003Tornadoes 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.