Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 91, NWS Austin/San Antonio, TX

April 2, 2000Bexar County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 2, 2000, 10:39 PM CDT for Bexar County, Texas. It was in force for 66 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Apr 2, 2000, 10:39 PM CDT (03:39 UTC)
Expired
Apr 2, 2000, 11:45 PM CDT
In force
66 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Bexar County, TX

The radar

The Austin/San Antonio radar (KEWX), 65 km from the middle of the area, began a volume at 03:42 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.

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 3.7 hours before the alert went out and 212 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 2000-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 00:00Z on 2000-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -93 square meters per square second.1939587897117136156Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1119 m above ground
0-6 km bulk shear
91 kt
0-1 km storm-relative helicity
-93 m²/s²
0-3 km storm-relative helicity
214 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
WUUS54 KEWX 030340
SVRSAT
TTAA00 KEWX 030339

TXC029-030445-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1039 PM CDT SUN APR 2 2000

THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A

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

* UNTIL 1145 PM CDT

* AT 1039 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM 12 MILES SOUTHWEST OF SEA WORLD...OR ABOUT 3
  MILES SOUTHEAST OF CASTROVILLE...MOVING NORTHEAST AT 50 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  LACKLAND AFB AROUND 1050 PM CDT
  SAN ANTONIO AROUND 1055 PM CDT
  ALAMO HEIGHTS AROUND 1100 PM CDT

VERY LARGE HAIL IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. IF YOU ARE
IN THE PATH OF THE STORM...PUT YOUR CAR IN A GARAGE AND MOVE TO A
SUBSTANTIAL SHELTER.

.END/ LAT...LON 2946 9881 2927 9875 2954 9834 2974 9856

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 2, 9:35 PM CDTSevere Thunderstorm WarningEWXBurnet40 min
Apr 2, 10:01 PM CDTSevere Thunderstorm WarningEWXFrio, Medina, Zavala44 min
Apr 2, 10:15 PM CDTSevere Thunderstorm WarningEWXHays, Travis45 min
Apr 2, 11:15 PM CDTSevere Thunderstorm WarningEWXAtascosa, Frio, Medina45 min
Apr 2, 11:16 PM CDTSevere Thunderstorm WarningEWXComal, Hays59 min
Apr 2, 11:28 PM CDTSevere Thunderstorm WarningEWXGuadalupe62 min
Apr 2, 11:39 PM CDTSevere Thunderstorm WarningEWXAtascosa, Bexar66 min
Apr 3, 12:12 AM CDTFlash Flood WarningEWXBexar4 hr
Apr 3, 12:36 AM CDTSevere Thunderstorm WarningEWXAtascosa, Karnes, Wilson69 min
Apr 3, 1:10 AM CDTTornado WarningEWXDeWitt, Karnes50 min

Nearby

Severe Thunderstorm Warnings in Texas, 2000Every severe thunderstorm warning in 2000

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; radar from the NEXRAD Level II archive.