Alert archive / Texas / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 66, NWS Austin/San Antonio, TX

May 17, 2002Bexar County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 17, 2002, 3:03 AM CDT for Bexar County, Texas. It was in force for 57 min. 2 reports 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
May 17, 2002, 3:03 AM CDT (08:03 UTC)
Expired
May 17, 2002, 4:00 AM CDT
In force
57 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Bexar County, TX

The radar

The Austin/San Antonio radar (KEWX), 62 km from the middle of the area, began a volume at 08:04 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

TimeReportWhereRemark
May 17, 3:30 AM CDTThunderstorm WindSan Antonio, TXSevere thunderstorm winds damaged 16 cars and knocked over fences in the northwest part of San Antonio, near I-10 and Callaghan Road. The area of damage was very limited in extent, covering only about a square mile.
May 17, 3:40 AM CDTThunderstorm WindSan Antonio, TXSevere thunderstorm winds damaged property of the Animal Defense League on Wurzbach Parkway in northeast San Antonio. Fences were knocked down and roofs were taken off buildings.

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, 8.1 hours before the alert went out and 217 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 2002-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2222 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 2002-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -50 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
2222 J/kg
Mixed-layer CIN
-101 J/kg
Mixed-layer LCL
2141 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-50 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 170803
SVRSAT
TXC029-170900-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
302 AM CDT FRI MAY 17 2002

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 400 AM CDT

* AT 302 AM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  THUNDERSTORMS FORMING OVER BEXAR COUNTY AND INCREASING IN
  STRENGTH.

WIND GUSTS NEAR 40 TO 60 MPH ARE POSSIBLE WITH THESE THUNDERSTORMS
ALONG WITH SOME HAIL.

LAT...LON 2944 9876 2932 9861 2945 9824 2960 9865

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 9:44 PM CDTSevere Thunderstorm WarningEWXVal Verde46 min
May 16, 10:32 PM CDTSevere Thunderstorm WarningEWXVal Verde73 min
May 16, 11:08 PM CDTSevere Thunderstorm WarningEWXEdwards37 min
May 16, 11:42 PM CDTSevere Thunderstorm WarningEWXUvalde63 min
May 17, 3:47 AM CDTSevere Thunderstorm WarningEWXGuadalupe, Wilson58 min
May 17, 4:26 AM CDTSevere Thunderstorm WarningEWXGonzales64 min
May 17, 4:01 PM CDTSevere Thunderstorm WarningEWXBandera, Kerr59 min
May 17, 4:43 PM CDTFlash Flood WarningEWXBandera, Kerr2 hr
May 17, 4:55 PM CDTSevere Thunderstorm WarningEWXBandera, Medina65 min
May 17, 5:13 PM CDTSevere Thunderstorm WarningEWXEdwards, Kerr, Real62 min
May 17, 5:53 PM CDTSevere Thunderstorm WarningEWXMedina67 min
May 17, 6:41 PM CDTFlash Flood WarningEWXEdwards, Real109 min
May 17, 6:47 PM CDTSevere Thunderstorm WarningEWXKinney58 min
May 17, 6:59 PM CDTSevere Thunderstorm WarningEWXUvalde46 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; radar from the NEXRAD Level II archive.