Alert archive / Texas / Tornado Warnings in 2001
Tornado Warning 17, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at May 20, 2001, 6:05 PM CDT for Wilson County, Texas. It was in force for 25 min. 4 reports came from 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, with what was reported inside it.
The facts
- Issued
- May 20, 2001, 6:05 PM CDT (23:05 UTC)
- Expired
- May 20, 2001, 6:30 PM CDT
- In force
- 25 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Wilson County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 20, 6:10 PM CDT | Hail 1.75 | Dewees, TX | |
| May 20, 6:10 PM CDT | Hail 1.75 | Floresville, TX | The large hail damaged houses and dented car bodies, destroyed windshields and windows. |
| May 20, 6:10 PM CDT | Hail 4 | Stockdale, TX | Again, the very large hail damaged homes and vehicles and destroyed corn, hay and other crops in the area. |
| May 20, 6:15 PM CDT | Tornado F0 | Floresville, TX | A very small and short-lived tornado twisted and knocked over a large tree and destroyed a small out-building in the middle of several outbuildings, then lifted and dissipated. |
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, 11.1 hours before the alert went out and 178 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.
- Mixed-layer CAPE
- 195 J/kg
- Mixed-layer CIN
- -489 J/kg
- Mixed-layer LCL
- 1288 m above ground
- 0-6 km bulk shear
- 39 kt
- 0-1 km storm-relative helicity
- 108 m²/s²
- 0-3 km storm-relative helicity
- 168 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.1
The text
As transmitted, in the capitals the NWS used until 2016.
000
WFUS54 KEWX 202307
TORSAT
TXC493-202330-
BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
605 PM CDT SUN MAY 20 2001
THE NATIONAL WEATHER SERVICE HAS ISSUED A
* TORNADO WARNING FOR THE FOLLOWING COUNTIES IN TEXAS...
WILSON
* UNTIL 630 PM CDT
* AT 605 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
THUNDERSTORM WITH STRONG SIGNS THAT A TORNADO IS DEVELOPING BETWEEN
DEWEES...POTH AND FLORESVILLE. STORM MOVEMENT IS NORTHEAST AT 20
MPH.
IF IN MOBILE HOMES OR VEHICLES...EVACUATE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.
STAY ALERT TO THE POSSIBILITY OF FLASH FLOODING.
LAT...LON 2912 9833 2899 9815 2915 9788 2921 9784
2934 9793 2938 9816The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 5:07 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa | 53 min |
| May 20, 5:44 PM CDT | Severe Thunderstorm Warning | EWX | Karnes, Wilson | 61 min |
| May 20, 6:44 PM CDT | Severe Thunderstorm Warning | EWX | Gonzales, Guadalupe | 61 min |
Nearby
Tornado Warnings in Texas, 2001Every tornado warning in 2001Tornadoes in 2001
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.