Alert archive / Louisiana / Tornado Warnings in 2001

Tornado Warning 10, NWS Shreveport, LA

November 26, 2001De Soto Parish, Louisiana

NWS Shreveport, LA issued this tornado warning at Nov 26, 2001, 2:35 PM CST for De Soto Parish, Louisiana. It was in force for 40 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Nov 26, 2001, 2:35 PM CST (20:35 UTC)
Expired
Nov 26, 2001, 3:15 PM CST
In force
40 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County De Soto Parish, LA

The radar

The Shreveport radar (KSHV), 45 km from the middle of the area, began a volume at 20:39 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
Nov 26, 1:00 PM CSTTornado WatchSPC5 hr

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 8.6 hours before the alert went out and 47 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 2001-11-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 31 joules per kilogram.LCLLFCEL10008507005003002001001 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 2001-11-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 288 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
31 J/kg
Mixed-layer CIN
-250 J/kg
Mixed-layer LCL
732 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
288 m²/s²
0-3 km storm-relative helicity
297 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

266 
WFUS54 KSHV 262036
TORSHV
LAC031-262115-
/NEW.KSHV.TO.W.0007.262035-262115/

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
235 PM CST MON NOV 26 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

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

* UNTIL 315 PM CST

* AT 235 PM CST...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER
  RADAR INDICATED A TORNADO 7 MILES SOUTH OF MANSFIELD...MOVING
  NORTHEAST AT 30 MPH.

IN ADDITION TO THE THREAT OF A TORNADO...LARGE HAIL AND DAMAGING WIND
CAN BE EXPECTED. GO TO A SAFE PLACE...NOW

REPEATING...THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
FOR...
  DE SOTO PARISH IN NORTHWEST LOUISIANA
UNTIL 315 PM CST.

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 26, 2:26 PM CSTSevere Thunderstorm WarningSHVDe Soto49 min
Nov 26, 2:51 PM CSTSevere Thunderstorm WarningSHVSabine39 min
Nov 26, 3:24 PM CSTTornado WarningSHVSabine36 min
Nov 26, 4:23 PM CSTTornado WarningSHVUnion67 min
Nov 26, 4:26 PM CSTTornado WarningSHVBienville64 min
Nov 26, 4:43 PM CSTTornado WarningSHVLincoln62 min
Nov 26, 4:43 PM CSTTornado WarningSHVWebster32 min
Nov 26, 5:05 PM CSTTornado WarningSHVClaiborne55 min
Nov 26, 5:27 PM CSTSevere Thunderstorm WarningSHVJackson63 min

Nearby

Tornado Warnings in Louisiana, 2001Every tornado warning in 2001Tornadoes in 2001

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.