Alert archive / Texas / Tornado Warnings in 2001

Tornado Warning 1, NWS Austin/San Antonio, TX

February 15, 2001Edwards County, Val Verde County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Feb 15, 2001, 8:46 PM CST for Edwards County, Val Verde County, Texas. It was in force for 29 min. 1 report came from 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, with what was reported inside it.

The facts

Issued
Feb 15, 2001, 8:46 PM CST (02:46 UTC)
Expired
Feb 15, 2001, 9:15 PM CST
In force
29 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Edwards County, TX, Val Verde County, TX

What was reported inside it

TimeReportWhereRemark
Feb 15, 9:00 PM CSTHail 1.75Loma Alta, TX

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

Del Rio, TX (KDRT), launched 00:00Z, 2.8 hours before the alert went out and 58 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 2001-02-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 616 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 2001-02-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 36 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
616 J/kg
Mixed-layer CIN
-49 J/kg
Mixed-layer LCL
661 m above ground
0-6 km bulk shear
83 kt
0-1 km storm-relative helicity
36 m²/s²
0-3 km storm-relative helicity
156 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

000 
WFUS54 KEWX 160248
TORSAT
TXC137-465-160315-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
846 PM CST THU FEB 15 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* TORNADO WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  EDWARDS COUNTY
  VAL VERDE COUNTY

* UNTIL 915 PM CST

* AT 846 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH STRONG ROTATION THAT MAY PRODUCE A TORNADO AT ANY
  TIME OVER VAL VERDE COUNTY...OR ABOUT 30 MILES NORTH OF DEL RIO...
  MOVING EAST AT 50 MPH.

* THE TORNADO PRODUCING STORM IS EXPECTED TO BE...
  NEAR LOMA ALTA AND CARTA VALLEY AT 900 PM CST
  

IF YOU ARE CAUGHT OUTSIDEg...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

LAT...LON 2987 10105 2970 10098 2989 10034 3010 10043

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 15, 8:13 PM CSTSevere Thunderstorm WarningEWXVal Verde62 min
Feb 15, 9:20 PM CSTSevere Thunderstorm WarningEWXEdwards25 min
Feb 15, 10:07 PM CSTSevere Thunderstorm WarningEWXEdwards38 min
Feb 15, 10:29 PM CSTSevere Thunderstorm WarningEWXEdwards, Kinney, Val Verde46 min
Feb 15, 11:08 PM CSTSevere Thunderstorm WarningEWXReal, Uvalde52 min
Feb 15, 11:35 PM CSTSevere Thunderstorm WarningEWXBandera, Real, Uvalde55 min
Feb 15, 11:35 PM CSTSevere Thunderstorm WarningEWXKerr55 min
Feb 16, 12:30 AM CSTSevere Thunderstorm WarningEWXGillespie, Kendall, Kerr45 min
Feb 16, 12:45 AM CSTSevere Thunderstorm WarningEWXBandera, Kendall, Kerr45 min
Feb 16, 12:45 AM CSTSevere Thunderstorm WarningEWXMedina45 min
Feb 16, 1:15 AM CSTSevere Thunderstorm WarningEWXBandera, Bexar, Medina45 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.