Alert archive / Louisiana / Tornado Warnings in 2002

Tornado Warning 29, NWS Shreveport, LA

December 19, 2002Grant Parish, Louisiana

NWS Shreveport, LA issued this tornado warning at Dec 19, 2002, 6:26 AM CST for Grant Parish, Louisiana. It was in force for 64 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
Dec 19, 2002, 6:26 AM CST (12:26 UTC)
Expired
Dec 19, 2002, 7:30 AM CST
In force
64 min
Issued by
NWS Shreveport, LA
Area
Counties, with a storm outline in the text

County Grant Parish, LA

The watch it was issued in

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

IssuedProductOfficeLasted
Dec 19, 2:25 AM CSTTornado WatchSPC8 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 0.4 hours before the alert went out and 143 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 12:00Z on 2002-12-19Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 12:00Z on 2002-12-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -387 square meters per square second.1939587897117136Sfc1 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
1601 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
-387 m²/s²
0-3 km storm-relative helicity
-75 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

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

600 
WFUS54 KSHV 191226
TORSHV
LAC043-191330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
626 AM CST THU DEC 19 2002

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  GRANT PARISH IN NORTH CENTRAL LOUISIANA

* UNTIL 730 AM CST

* AT 626 AM CST...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER    
  RADAR INDICATED A TORNADO OVER COLFAX...MOVING NORTHEAST AT 45 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  DRY PRONG AT 635 AM CST

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A CULVERT...DITCH...OR
LOW SPOT...AND COVER YOUR HEAD.

REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
FOR...
  GRANT PARISH IN NORTH CENTRAL LOUISIANA
UNTIL 730 AM CST.

LAT...LON 3160 9281 3146 9271 3155 9235 3174 9257

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 18, 6:42 PM CSTTornado WarningSHVCaddo33 min
Dec 18, 7:15 PM CSTTornado WarningSHVBossier, Caddo45 min
Dec 18, 8:50 PM CSTSevere Thunderstorm WarningSHVWebster25 min
Dec 18, 9:14 PM CSTFlash Flood WarningSHVBossier, Caddo4 hr
Dec 18, 9:21 PM CSTFlash Flood WarningSHVWebster4 hr
Dec 19, 3:18 AM CSTTornado WarningSHVBienville, Lincoln42 min
Dec 19, 3:53 AM CSTTornado WarningSHVBienville, Natchitoches52 min
Dec 19, 4:18 AM CSTTornado WarningSHVJackson, Lincoln42 min

Nearby

Tornado Warnings in Louisiana, 2002Every tornado warning in 2002Tornadoes in 2002

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.