Alert archive / Texas / Severe Thunderstorm Warnings in 2001

Severe Thunderstorm Warning 3, NWS Austin/San Antonio, TX

February 15, 2001Val Verde County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 15, 2001, 8:13 PM CST for Val Verde County, Texas. It was in force for 62 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: Feb 15, 2001, 8:13 PM CST (02:13 UTC)
Expired: Feb 15, 2001, 9:15 PM CST
In force: 62 min
Issued by: NWS Austin/San Antonio, TX
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Val Verde County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 2.2 hours before the alert went out and 61 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: 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 
WUUS54 KEWX 160214
SVRSAT
TXC465-160315-

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

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  VAL VERDE COUNTY

* UNTIL 915 PM CST

* AT 813 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 28 MILES SOUTHWEST OF VAL VERDE COUNTY...OR
  ABOUT 35 MILES NORTHWEST OF DEL RIO...MOVING NORTHEAST AT 40 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
 NEAR COMSTOCK AT 830 PM CST


LAT...LON 2965 10153 2952 10139 2988 10090 3007 10112

The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 15, 8:46 PM CST	Tornado Warning	EWX	Edwards, Val Verde	29 min
Feb 15, 9:20 PM CST	Severe Thunderstorm Warning	EWX	Edwards	25 min
Feb 15, 10:07 PM CST	Severe Thunderstorm Warning	EWX	Edwards	38 min
Feb 15, 10:29 PM CST	Severe Thunderstorm Warning	EWX	Edwards, Kinney, Val Verde	46 min
Feb 15, 11:08 PM CST	Severe Thunderstorm Warning	EWX	Real, Uvalde	52 min
Feb 15, 11:35 PM CST	Severe Thunderstorm Warning	EWX	Bandera, Real, Uvalde	55 min
Feb 15, 11:35 PM CST	Severe Thunderstorm Warning	EWX	Kerr	55 min
Feb 16, 12:30 AM CST	Severe Thunderstorm Warning	EWX	Gillespie, Kendall, Kerr	45 min
Feb 16, 12:45 AM CST	Severe Thunderstorm Warning	EWX	Bandera, Kendall, Kerr	45 min
Feb 16, 12:45 AM CST	Severe Thunderstorm Warning	EWX	Medina	45 min
Feb 16, 1:15 AM CST	Severe Thunderstorm Warning	EWX	Bandera, Bexar, Medina	45 min

Nearby

Severe Thunderstorm Warnings in Texas, 2001 Every severe thunderstorm warning 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.