Alert archive / Texas / Tornado Warnings in 2002

Tornado Warning 33, NWS Shreveport, LA

December 30, 2002Cass County, Morris County, Texas

NWS Shreveport, LA issued this tornado warning at Dec 30, 2002, 5:00 PM CST for Cass County, Morris County, Texas. It was in force for 30 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Dec 30, 2002, 5:00 PM CST (23:00 UTC)
Expired: Dec 30, 2002, 5:30 PM CST
In force: 30 min
Issued by: NWS Shreveport, LA
Area: Counties, with a storm outline in the text

Counties Cass County, TX, Morris County, TX

What was reported inside it

Time	Report	Where	Remark
Dec 30, 5:35 PM CST	Thunderstorm Wind 65 M	Douglassville, TX	Numerous trees toppled.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 11.0 hours before the alert went out and 109 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: 1 J/kg
Mixed-layer CIN: -95 J/kg
Mixed-layer LCL: 579 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 372 m²/s²
0-3 km storm-relative helicity: 378 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.

877 
WFUS54 KSHV 302300
TORSHV
TXC067-343-302330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
500 PM CST MON DEC 30 2002

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  CASS COUNTY IN NORTHEAST TEXAS
  MORRIS COUNTY IN NORTHEAST TEXAS

* UNTIL 530 PM CST

* AT 500 PM CST...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED A TORNADO OVER DAINGERFIELD...MOVING NORTHEAST AT
  25 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  5 MILES NORTHWEST OF HUGHES SPRINGS AT 505 PM CST
  8 MILES SOUTHEAST OF OMAHA AT 515 PM CST
  7 MILES SOUTHEAST OF NAPLES AT 525 PM 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...
  CASS COUNTY IN NORTHEAST TEXAS
  MORRIS COUNTY IN NORTHEAST TEXAS
UNTIL 530 PM CST.

LAT...LON 3326 9480 3297 9477 3296 9440 3323 9428

The office that day

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

Issued	Product	Office	Counties	Lasted
Dec 30, 4:11 PM CST	Severe Thunderstorm Warning	SHV	Red River	34 min
Dec 30, 4:48 PM CST	Severe Thunderstorm Warning	SHV	Cass, Morris	57 min
Dec 30, 5:11 PM CST	Severe Thunderstorm Warning	SHV	Smith	64 min
Dec 30, 5:30 PM CST	Tornado Warning	SHV	Cass	45 min
Dec 30, 5:42 PM CST	Tornado Warning	SHV	Bowie	63 min
Dec 30, 5:58 PM CST	Severe Thunderstorm Warning	SHV	Rusk	62 min

Nearby

Tornado Warnings in Texas, 2002 Every tornado warning in 2002 Tornadoes 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.