Alert archive / Texas / Tornado Warnings in 2001

Tornado Warning 4, NWS Shreveport, LA

October 10, 2001Red River County, Texas

NWS Shreveport, LA issued this tornado warning at Oct 10, 2001, 5:46 PM CDT for Red River County, Texas. It was in force for 44 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Oct 10, 2001, 5:46 PM CDT (22:46 UTC)
Expired
Oct 10, 2001, 6:30 PM CDT
In force
44 min
Issued by
NWS Shreveport, LA
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Red River County, TX

The radar

The Western Arkansas radar (KSRX), 180 km from the middle of the area, began a volume at 22:47 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 nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 10.8 hours before the alert went out and 201 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 2001-10-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 932 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 2001-10-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 196 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
932 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
483 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
196 m²/s²
0-3 km storm-relative helicity
238 m²/s²
Significant tornado parameter
0.7
Supercell composite
4.2

Open this sounding in Storm Lab

The text

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

343 
WFUS54 KSHV 102253 CCA
TORSHV
TXC387-102315-
/NEW.KSHV.TO.W.0001.102246-102330/

BULLETIN - EAS ACTIVATION REQUESTED...CORRECTION
TORNADO WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
546 PM CDT WED OCT 10 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR...
  RED RIVER COUNTY IN NORTHEAST TEXAS

* UNTIL 630 PM CDT

* AT 546 PM CDT...THE SHREVEPORT NATIONAL WEATHER SERVICE DOPPLER    
  RADAR INDICATED A THUNDERSTORM CAPABLE OF PRODUCING A TORNADO OVER 
  NORTHWESTERN RED RIVER COUNTY...OR ABOUT 16 MILES NORTHWEST OF     
  CLARKSVILLE...MOVING NORTHEAST AT 20 MPH.

* THE TORNADO IS EXPECTED TO BE OVER...
  RURAL NORTHERN RED RIVER COUNTY THROUGH 630 PM CDT

THIS THUNDERSTORM CAN PRODUCE A TORNADO THAT IS OBSCURED BY RAIN...
AND DIFFICULT TO SEE.

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...
  RED RIVER COUNTY IN NORTHEAST TEXAS
UNTIL 630 PM CDT.

LAT...LON 3383 9532 3370 9517 3382 9499 3393 9517

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 10, 5:32 PM CDTSevere Thunderstorm WarningSHVRed River28 min

Nearby

Tornado Warnings in Texas, 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.