Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 59, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 5, 2001, 11:10 PM CDT for Maverick County, Texas. It was in force for 50 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 5, 2001, 11:10 PM CDT (04:10 UTC)
- Expired
- May 6, 2001, 12:00 AM CDT
- In force
- 50 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Maverick County, TX
The radar
The Laughlin AFB radar (KDFX), 83 km from the middle of the area, began a volume at 04:14 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, 4.2 hours before the alert went out and 106 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
- 2880 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 898 m above ground
- 0-6 km bulk shear
- 49 kt
- 0-1 km storm-relative helicity
- 106 m²/s²
- 0-3 km storm-relative helicity
- 186 m²/s²
- Significant tornado parameter
- 2.7
- Supercell composite
- 11.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 060408 SVRSAT TXC323-060500- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1110 PM CDT SAT MAY 5 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... MAVERICK * UNTIL MIDNIGHT CDT * AT 1106 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 5 MILES WEST OF EL INDIO...MOVING SOUTHEAST AT 25 MPH. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. VERY LARGE HAIL OF TWO TO THREE INCHES IS POSSIBLE WITH THIS SEVERE THUNDERSTORM. LAT...LON 2845 10045 2820 10014 2878 10014 2876 10052 W
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 5, 2:40 PM CDT, 8 hours 30 minutes earlier.
Area forecast discussion, May 5, 2:40 PM CDT, 8 hours 30 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 240 PM CDT SAT MAY 5 2001 SHOWERS/TSTMS MOVG NWD INTO THE CWA THIS AFTN ALONG LAST NIGHTS OLD BOUNDARY WITH JUICY 70-75 DEGREE DEW PTS FEEDING INTO THESE STORMS. SINCE THESE STORMS PARTIALLY THERMALLY DRIVEN...EXPECT A DECREASE IN THE LATE EVENING HOURS. HOWEVER DYNAMICALLY DRIVEN STORMS OVER CENTRAL TX FROM A S/W ENERGY KICKING OUT OF NM INTO N TX THIS AFTN AND EVENING WILL SKIRT THE NRN CWA WITH THE POTENTIAL FOR STORMS TO CONT THRU LATE TONIGHT INTO THE ERN CWA. DURATION OF CONVECTION TONIGHT AND A SOAKED GROUND WILL PROMPT THE NEED FOR AN FFA FOR MUCH OF THE NRN AND ERN CWA OVERNIGHT...ALONG WITH THE MENTION OF SVR MAINLY NRN CWA ON THE TAIL END OF S/W AND A STALLING DRY LINE. BEYOND TONIGHT...AN UPR TROF OVER THE CENTRAL U.S. DOWN TO TX TO MOVE SLOWLY EWD WITH A FRONTAL BOUNDARY INTO OR JUST NORTH OF THE CWA...SO WILL KEEP THE CHC RW/TRW DUE TO LOWER LEVELS REMAINING MOIST AND S/WS DROPPING SEWD IN THE NLY FLOW ALOFT. PRELIMINARY NUMBERS... AUS 068/084/066/081 6533 DRT 066/089/067/086 3212 SAT 067/085/068/082 6533 .EWX...FFA FOR ALL BUT THE SWRN CWA THRU TONIGHT. 1/16
In the hours before
Local storm report, May 5, 8:02 PM CDT, 3 hours 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
802 PM CDT SAT MAY 5 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1105 PM MONTELL TX FLASH FLOODS
05/04/01 UVALDE HIGHWAY 55 AT MONTELL
CLOSED. STILL CLOSED AT
05/05/01 1730. REPORTED BY
LAW ENFORCEMENT
1105 PM UVALDE TX FLASH FLOODS
05/04/01 UVALDE WATER OVER THE ROAD ON
COUNTY ROADS 416 AND 414.
WATER OVER THE ROAD ON FM
1051 AND 2090. WATER STILL
OVER THE ROAD AT 05/05/01
530 PM. REPORTED BY LAW
ENFORCEMENT
0345 PM KENEDY TX FLASH FLOODS 05/05/01
KARNES HIGHWAY 72E AND 72W
CLOSED BETWEEN KENEDY
AND RUNGE. REPORTED BY
LAW ENFORCEMENT
0430 PM YOAKUM TX FLASH FLOODS
05/05/01 LAVACA 6 1/2 INCHES OF RAIN IN 2
1/2 HOURS AT JCT HIGHWAY
77N AND 111S. WATER OVER
THE ROAD. REPORTED BY CO-OP
OBSERVER
0430 PM YOAKUM TX FLASH FLOODS
05/05/01 LAVACA COUNTY ROADS 436, 441, 444
CLOSED. REPORTED BY LAW
ENFORCEMENT
0530 PM LEAKEY TX FLASH FLOODS
05/05/01 REAL LOWER FM 1120
CLOSED. REPORTED BY LAW
ENFORCEMENT
0622 PM TERRYVILLE TX FLASH FLOODS
05/05/01 DEWITT HIGHWAY 682 CLOSED FROM
1447 TO 77. REPORTED BY LAW
ENFORCEMENT
DCLocal storm report, May 5, 10:50 PM CDT, 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
1050 PM CDT SAT MAY 5 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0850 PM EL INDIO TX TORNADO
05/05/01 MAVERICK REPORTED BY LAW
ENFORCEMENT
0853 PM EL INDIO TX 1.75 INCH HAIL
05/05/01 MAVERICK REPORTED BY LAW
ENFORCEMENT
DCThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 5, 8:20 PM CDT | Tornado Warning | EWX | Maverick | 60 min |
| May 5, 9:18 PM CDT | Tornado Warning | EWX | Dimmit, Maverick | 57 min |
| May 5, 10:12 PM CDT | Tornado Warning | EWX | Dimmit | 48 min |
| May 5, 11:53 PM CDT | Tornado Warning | EWX | Dimmit | 52 min |
| May 6, 5:05 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 30 min |
| May 6, 5:39 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 51 min |
| May 6, 5:48 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Frio | 57 min |
| May 6, 6:00 PM CDT | Tornado Warning | EWX | Llano | 45 min |
| May 6, 6:40 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 65 min |
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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.