Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 42, NWS Austin/San Antonio, TX

April 16, 2002Bexar County, Wilson County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 16, 2002, 4:32 PM CDT for Bexar County, Wilson County, Texas. It was in force for 43 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
Apr 16, 2002, 4:32 PM CDT (21:32 UTC)
Expired
Apr 16, 2002, 5:15 PM CDT
In force
43 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Bexar County, TX, Wilson County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 9.5 hours before the alert went out and 192 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, Corpus Christi, TX at 12:00Z on 2002-04-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2020 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, Corpus Christi, TX at 12:00Z on 2002-04-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 163 square meters per square second.193958Sfc1 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
2020 J/kg
Mixed-layer CIN
-125 J/kg
Mixed-layer LCL
932 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
163 m²/s²
0-3 km storm-relative helicity
162 m²/s²
Significant tornado parameter
0.0
Supercell composite
6.5

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 162132
SVRSAT
TXC029-493-162215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
432 PM CDT TUE APR 16 2002

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  BEXAR
  WILSON

* UNTIL 515 PM CDT

* AT 432 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A   
  SEVERE THUNDERSTORM 7 MILES SOUTHWEST OF ELMENDORF...OR 5 MILES    
  EAST OF POTEET...MOVING NORTHEAST AT 20 MPH.

* THIS WARNING INCLUDES LOCATIONS IN AND AROUND...
  ELMENDORF
  FLORESVILLE


LAT...LON 2918 9852 2905 9829 2925 9800 2949 9821

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 4:17 PM CDTSevere Thunderstorm WarningEWXAtascosa58 min
Apr 16, 4:49 PM CDTTornado WarningEWXAtascosa, Wilson56 min
Apr 16, 5:17 PM CDTSevere Thunderstorm WarningEWXBexar, Comal, Guadalupe58 min
Apr 16, 5:43 PM CDTTornado WarningEWXAtascosa, Karnes62 min
Apr 16, 6:16 PM CDTSevere Thunderstorm WarningEWXComal, Hays44 min
Apr 16, 6:20 PM CDTSevere Thunderstorm WarningEWXBexar, Kendall, Medina55 min
Apr 16, 6:41 PM CDTTornado WarningEWXBexar, Kendall49 min
Apr 16, 6:46 PM CDTTornado WarningEWXAtascosa, Karnes29 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.