Alert archive / Texas / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 113, NWS Austin/San Antonio, TX

May 1, 2000Bexar County, Guadalupe County, Texas

NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 1, 2000, 4:29 AM CDT for Bexar County, Guadalupe County, Texas. It was in force for 61 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
May 1, 2000, 4:29 AM CDT (09:29 UTC)
Expired
May 1, 2000, 5:30 AM CDT
In force
61 min
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

Counties Bexar County, TX, Guadalupe County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 9.5 hours before the alert went out and 224 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 2000-05-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2709 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 2000-05-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 13 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
2709 J/kg
Mixed-layer CIN
-54 J/kg
Mixed-layer LCL
2069 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
13 m²/s²
0-3 km storm-relative helicity
89 m²/s²
Significant tornado parameter
0.0
Supercell composite
2.4

Open this sounding in Storm Lab

The text

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

776 
WUUS54 KEWX 010929
SVRSAT
TXC029-187-011030-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
429 AM CDT MON MAY 1 2000

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

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

* UNTIL 530 AM CDT

* AT 425 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED  
SEVERE THUNDERSTORMS WITH POSSIBLE LARGE HAIL FROM NORTHERN ATASCOSA 
COUNTY JUST SOUTHEAST OF LYTLE NORTHWEST TO ALONG THE MEDINA...BEXAR 
COUNTY LINE NEAR LACOSTE...MOVING EAST NORTHEAST AT 25 MPH.   

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.


LAT...LON 2952 9874 2919 9849 2957 9822 2967 9848

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 30, 9:24 PM CDTSevere Thunderstorm WarningEWXUvalde51 min
Apr 30, 9:58 PM CDTSevere Thunderstorm WarningEWXBandera62 min
Apr 30, 10:11 PM CDTSevere Thunderstorm WarningEWXFrio, Medina, Uvalde, Zavala64 min
Apr 30, 11:38 PM CDTSevere Thunderstorm WarningEWXVal Verde62 min
May 1, 12:30 AM CDTSevere Thunderstorm WarningEWXVal Verde60 min
May 1, 1:40 AM CDTFlash Flood WarningEWXEdwards, Kerr, Real110 min
May 1, 6:41 PM CDTSevere Thunderstorm WarningEWXGillespie34 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.