Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 4, NWS Austin/San Antonio, TX

March 19, 2002Val Verde County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 19, 2002, 1:40 PM CST for Val Verde 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 as issued.

The facts

Issued
Mar 19, 2002, 1:40 PM CST (19:40 UTC)
Expired
Mar 19, 2002, 2:15 PM CST
In force
35 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Val Verde County, TX

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 19, 1:30 PM CSTSevere Thunderstorm WatchSPC5 hr

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 7.7 hours before the alert went out and 98 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 12:00Z on 2002-03-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1251 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 12:00Z on 2002-03-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.1939587897117136Sfc1 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
1251 J/kg
Mixed-layer CIN
-53 J/kg
Mixed-layer LCL
734 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.1
Supercell composite
0.3

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 191940
SVRSAT
TXC465-192015-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
138 PM CST TUE MAR 19 2002

THE NATIONAL WEATHER SERVICE HAS ISSUED A

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

* UNTIL 215 PM CST

* AT 138 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A   
SEVERE THUNDERSTORM OVER NORTHERN VAL VERDE COUNTY...JUST NORTHEAST 
OF JUNO ABOUT 38 MILES SOUTH OF OZONA...MOVING NORTHEAST AT 20 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
MOVING NORTHWARD OUT OF VAL VERDE COUNTY AROUND 2 PM.  ADDITIONAL 
STORMS ARE ENTERING VAL VERDE COUNTRY FROM THE SOUTHWEST.  


LAT...LON 3018 10121 3005 10106 3030 10074 3046 10093

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 18, 10:56 PM CSTSevere Thunderstorm WarningEWXVal Verde94 min
Mar 19, 1:59 PM CSTSevere Thunderstorm WarningEWXVal Verde61 min
Mar 19, 2:54 PM CSTSevere Thunderstorm WarningEWXVal Verde51 min
Mar 19, 3:05 PM CSTTornado WarningEWXVal Verde25 min
Mar 19, 3:19 PM CSTTornado WarningEWXEdwards26 min
Mar 19, 3:28 PM CSTTornado WarningEWXVal Verde32 min
Mar 19, 3:42 PM CSTTornado WarningEWXEdwards, Kinney33 min
Mar 19, 4:07 PM CSTTornado WarningEWXKinney, Val Verde53 min
Mar 19, 4:18 PM CSTTornado WarningEWXEdwards27 min
Mar 19, 4:42 PM CSTSevere Thunderstorm WarningEWXReal63 min
Mar 19, 5:29 PM CSTTornado WarningEWXMaverick61 min

Nearby

Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002

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.