Alert archive / Louisiana / Tornado Warnings in 2002

Tornado Warning 7, NWS Shreveport, LA

March 30, 2002De Soto Parish, Sabine Parish, Louisiana

NWS Shreveport, LA issued this tornado warning at Mar 30, 2002, 8:52 PM CST for De Soto Parish, Sabine Parish, Louisiana. It was in force for 53 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: Mar 30, 2002, 8:52 PM CST (02:52 UTC)
Expired: Mar 30, 2002, 9:45 PM CST
In force: 53 min
Issued by: NWS Shreveport, LA
Area: Counties, with a storm outline in the text

Counties De Soto Parish, LA, Sabine Parish, LA

The radar

The Shreveport radar (KSHV), 61 km from the middle of the area, began a volume at 02:52 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.

Issued	Product	Office	Lasted
Mar 30, 5:30 PM CST	Tornado Watch	SPC	6 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 00:00Z, 2.9 hours before the alert went out and 64 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: 7 J/kg
Mixed-layer CIN: -221 J/kg
Mixed-layer LCL: 454 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: 370 m²/s²
0-3 km storm-relative helicity: 459 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.4

Open this sounding in Storm Lab

The text

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

175 
WFUS54 KSHV 310252
TORSHV
LAC031-085-310345-
/NEW.KSHV.TO.W.0013.310250-310345/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
850 PM CST SAT MAR 30 2002

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A

* TORNADO WARNING FOR...
  DE SOTO PARISH IN NORTHWEST LOUISIANA
  SABINE PARISH IN NORTHWEST LOUISIANA

* UNTIL 945 PM CST

* AT 850 PM CST...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED A TORNADO 27 MILES SOUTHWEST OF MANSFIELD...OR
  ABOUT 17 MILES SOUTHEAST OF CENTER...MOVING NORTHEAST AT 20 MPH.

* THE TORNADO WILL MOVE OVER THE NORTHWEST CORNER OF SABINE PARISH   
  BETWEEN 900 AND 915 PM AND IN SOUTHEASTERN DE SOTO PARISH BETWEEN
  915 PM AND 945 PM CST

REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
FOR...
  DE SOTO PARISH IN NORTHWEST LOUISIANA
  SABINE PARISH IN NORTHWEST LOUISIANA
UNTIL 945 PM CST.

LAT...LON 3191 9389 3169 9374 3192 9347 3211 9365

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 30, 7:10 PM CST	Severe Thunderstorm Warning	SHV	Caddo	65 min
Mar 30, 7:19 PM CST	Severe Thunderstorm Warning	SHV	Caldwell, Ouachita	41 min
Mar 30, 7:38 PM CST	Severe Thunderstorm Warning	SHV	De Soto	37 min
Mar 30, 7:44 PM CST	Severe Thunderstorm Warning	SHV	Bossier	46 min
Mar 30, 8:59 PM CST	Severe Thunderstorm Warning	SHV	Webster	61 min
Mar 30, 10:11 PM CST	Tornado Warning	SHV	Sabine	34 min
Mar 30, 10:23 PM CST	Tornado Warning	SHV	Natchitoches	52 min
Mar 31, 3:55 AM CST	Severe Thunderstorm Warning	SHV	Caddo	65 min
Mar 31, 5:37 AM CST	Severe Thunderstorm Warning	SHV	Sabine	53 min

Nearby

Tornado Warnings in Louisiana, 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.