Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 64, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 6, 2001, 7:06 PM CDT for Bexar County, Texas. It was in force for 54 min. 3 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 6, 2001, 7:06 PM CDT (00:06 UTC)
- Expired
- May 6, 2001, 8:00 PM CDT
- In force
- 54 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), 67 km from the middle of the area, began a volume at 00:05 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
| Time | Report | Where | Remark |
|---|---|---|---|
| May 6, 7:20 PM CDT | Hail 1.75 | San Antonio, TX | |
| May 6, 7:38 PM CDT | Hail 4 | San Antonio, TX | |
| May 6, 7:45 PM CDT | Thunderstorm Wind | Leon Vly, 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| May 6, 6:00 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 0.1 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.
- Mixed-layer CAPE
- 2710 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 1349 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 76 m²/s²
- Significant tornado parameter
- 0.5
- Supercell composite
- 5.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 070006 SVRSAT TXC029-070100- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 706 PM CDT SUN MAY 6 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... BEXAR * UNTIL 800 PM CDT * AT 706 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES NORTH OF SOMERSET...OR ABOUT 12 MILES EAST OF CASTROVILLE...MOVING NORTHEAST AT 25 MPH. * THE SEVERE THUNDERSTORM WILL BE... OVER LACKLAND AFB AT 720 PM 6 MILES SOUTHEAST OF SEA WORLD AT 725 PM 3 MILES SOUTHEAST OF LEON VALLEY AT 735 PM 4 MILES NORTHWEST OF SAN ANTONIO AT 740 PM 5 MILES NORTHWEST OF OLMOS PARK AT 745 PM OVER HOLLYWOOD PARK AT 755 PM LAT...LON 2927 9882 2913 9844 2948 9816 2969 9876
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 6, 7:45 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Travis, Williamson | 60 min |
| May 6, 7:45 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Frio, Medina | 60 min |
| May 6, 8:08 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit, Zavala | 52 min |
| May 6, 9:42 PM CDT | Severe Thunderstorm Warning | EWX | Hays | 63 min |
| May 6, 10:03 PM CDT | Flash Flood Warning | EWX | Bastrop, Hays, Lee, Travis, Williamson | 3 hr |
| May 6, 11:31 PM CDT | Flash Flood Warning | EWX | Fayette | 3 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.