Alert archive / Texas / Tornado Warnings in 2000

Tornado Warning 56, NWS Austin/San Antonio, TX

November 23, 2000Dimmit County, Zavala County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Nov 23, 2000, 8:55 PM CST for Dimmit County, Zavala County, Texas. It was in force for 35 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
Nov 23, 2000, 8:55 PM CST (02:55 UTC)
Expired
Nov 23, 2000, 9:30 PM CST
In force
35 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Dimmit County, TX, Zavala County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 2.9 hours before the alert went out and 142 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, Del Rio, TX at 00:00Z on 2000-11-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 387 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, Del Rio, TX at 00:00Z on 2000-11-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.1939587897117Sfc1 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
387 J/kg
Mixed-layer CIN
-224 J/kg
Mixed-layer LCL
963 m above ground
0-6 km bulk shear
76 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
931 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.

000 
WFUS54 KEWX 240256
TORSAT

TXC127-507-240330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
855 PM CST THU NOV 23 2000

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* TORNADO WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  DIMMIT COUNTY
  ZAVALA COUNTY

* UNTIL 930 PM CST

* AT 855 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED TWO
  THUNDERSTORMS WITH STRONG SIGNS THAT A TORNADO IS DEVELOPING FROM 
5   MILES NORTH OF LOMA VISTA AND 17 MILES WEST OF BIG WELLS...OR 
FROM 7 MILES SOUTH OF BATESVILLE AND 2 MILES NORTH OF CARRIZO 
SPRINGS...  MOVING EAST AT 40 MPH.

* TORNADO PRODUCING STORMS ARE EXPECTED TO BE...
  OVER BIG WELLS AT 905 PM CST


LAT...LON 2892 9952 2848 9990 2846 9947 2889 9943

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 23, 7:48 PM CSTSevere Thunderstorm WarningEWXGillespie57 min
Nov 23, 8:31 PM CSTFlash Flood WarningEWXBexar, Medina3 hr
Nov 23, 8:35 PM CSTFlash Flood WarningEWXComal, Hays3 hr
Nov 23, 9:03 PM CSTSevere Thunderstorm WarningEWXFrio57 min
Nov 23, 9:25 PM CSTFlash Flood WarningEWXBastrop, Caldwell, Guadalupe, Travis, Williamson3 hr
Nov 23, 10:00 PM CSTFlash Flood WarningEWXAtascosa, Gonzales, Wilson3 hr
Nov 23, 10:31 PM CSTFlash Flood WarningEWXDeWitt, Fayette, Karnes, Lavaca, Lee3 hr

Nearby

Tornado Warnings in Texas, 2000Every tornado warning in 2000Tornadoes in 2000

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.