Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 41, NWS Austin/San Antonio, TX

April 16, 2002Atascosa County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 16, 2002, 4:17 PM CDT for Atascosa County, Texas. It was in force for 58 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Apr 16, 2002, 4:17 PM CDT (21:17 UTC)
Expired
Apr 16, 2002, 5:15 PM CDT
In force
58 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Atascosa County, TX

What was reported inside it

TimeReportWhereRemark
Apr 16, 4:47 PM CDTHail 1Pleasanton, 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

Corpus Christi, TX (KCRP), launched 12:00Z, 9.3 hours before the alert went out and 184 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 162117
SVRSAT
TXC013-162215-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
417 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...
  ATASCOSA

* UNTIL 515 PM CDT

* AT 417 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER JOURDANTON...MOVING NORTHEAST AT 10 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  OVER PLEASANTON AT 420 PM
  NEAR POTEET AT 430 PM

* THIS WARNING INCLUDES LOCATIONS IN AND AROUND...
  JOURDANTON
  PLEASANTON
  POTEET


LAT...LON 2894 9871 2881 9856 2897 9827 2911 9842
          2920 9865

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 16, 4:32 PM CDTSevere Thunderstorm WarningEWXBexar, Wilson43 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.