Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 23, NWS Austin/San Antonio, TX

April 7, 2002Uvalde County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 7, 2002, 10:37 PM CDT for Uvalde County, Texas. It was in force for 53 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 7, 2002, 10:37 PM CDT (03:37 UTC)
Expired
Apr 7, 2002, 11:30 PM CDT
In force
53 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Uvalde County, TX

What was reported inside it

TimeReportWhereRemark
Apr 7, 10:45 PM CDTHail 1.75Countywide, 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, 3.6 hours before the alert went out and 117 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 2002-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 622 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 00:00Z on 2002-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.19395878Sfc1 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
622 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
1496 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
9 m²/s²
Significant tornado parameter
0.0
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 080337
SVRSAT
TXC463-080430-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1037 PM CDT SUN APR 7 2002

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
  UVALDE

* UNTIL 1130 PM CDT

* AT 1037 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 12 MILES WEST OF SABINAL...OR ABOUT 12 MILES
  NORTHEAST OF UVALDE...MOVING NORTHEAST AT 30 MPH.

* THE SEVERE THUNDERSTORM WILL BE...
  7 MILES NORTH OF SABINAL AT 1055 PM

* THIS WARNING INCLUDES LOCATIONS IN AND AROUND...
  SABINAL


LAT...LON 2936 9981 2924 9967 2918 9944 2962 9943

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 7, 7:03 PM CDTTornado WarningEWXUvalde57 min
Apr 7, 7:09 PM CDTTornado WarningEWXMedina66 min
Apr 7, 7:36 PM CDTTornado WarningEWXFrio54 min
Apr 7, 8:14 PM CDTTornado WarningEWXMedina31 min
Apr 7, 8:29 PM CDTSevere Thunderstorm WarningEWXHays46 min
Apr 7, 8:29 PM CDTTornado WarningEWXFrio61 min
Apr 7, 8:36 PM CDTSevere Thunderstorm WarningEWXComal24 min
Apr 7, 8:40 PM CDTTornado WarningEWXAtascosa65 min
Apr 7, 9:18 PM CDTTornado WarningEWXWilson57 min
Apr 7, 9:31 PM CDTSevere Thunderstorm WarningEWXFrio59 min
Apr 7, 10:15 PM CDTSevere Thunderstorm WarningEWXWilson60 min
Apr 7, 10:26 PM CDTFlash Flood WarningEWXFrio3 hr
Apr 7, 10:31 PM CDTSevere Thunderstorm WarningEWXFrio59 min
Apr 7, 10:55 PM CDTSevere Thunderstorm WarningEWXGonzales65 min
Apr 7, 11:07 PM CDTFlash Flood WarningEWXAtascosa6 hr
Apr 7, 11:25 PM CDTFlash Flood WarningEWXWilson6 hr
Apr 7, 11:29 PM CDTSevere Thunderstorm WarningEWXFrio46 min
Apr 7, 11:37 PM CDTSevere Thunderstorm WarningEWXAtascosa38 min
Apr 7, 11:59 PM CDTSevere Thunderstorm WarningEWXBexar46 min
Apr 8, 12:06 AM CDTSevere Thunderstorm WarningEWXWilson54 min
Apr 8, 12:13 AM CDTTornado WarningEWXAtascosa62 min
Apr 8, 12:23 AM CDTSevere Thunderstorm WarningEWXFrio37 min
Apr 8, 12:31 AM CDTSevere Thunderstorm WarningEWXMedina, Uvalde, Zavala59 min
Apr 8, 12:54 AM CDTTornado WarningEWXFrio36 min
Apr 8, 12:55 AM CDTSevere Thunderstorm WarningEWXBandera, Kendall50 min
Apr 8, 1:00 AM CDTSevere Thunderstorm WarningEWXWilson45 min
Apr 8, 1:20 AM CDTTornado WarningEWXAtascosa, Frio, Medina55 min
Apr 8, 1:24 AM CDTFlash Flood WarningEWXMedina111 min
Apr 8, 1:30 AM CDTSevere Thunderstorm WarningEWXBexar60 min
Apr 8, 1:50 AM CDTSevere Thunderstorm WarningEWXGuadalupe40 min
Apr 8, 2:05 AM CDTSevere Thunderstorm WarningEWXCaldwell, Gonzales40 min
Apr 8, 2:08 AM CDTFlash Flood WarningEWXBexar, Guadalupe3 hr
Apr 8, 2:13 AM CDTTornado WarningEWXBexar, Wilson47 min
Apr 8, 2:46 AM CDTSevere Thunderstorm WarningEWXCaldwell59 min
Apr 8, 2:54 AM CDTSevere Thunderstorm WarningEWXGuadalupe51 min
Apr 8, 3:07 AM CDTFlash Flood WarningEWXCaldwell2 hr
Apr 8, 3:11 AM CDTFlash Flood WarningEWXMedina2 hr
Apr 8, 3:18 AM CDTFlash Flood WarningEWXMedina117 min
Apr 8, 3:34 AM CDTSevere Thunderstorm WarningEWXMedina41 min
Apr 8, 4:13 AM CDTFlash Flood WarningEWXAtascosa4 hr
Apr 8, 4:59 AM CDTFlash Flood WarningEWXBexar, Guadalupe2 hr

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.