Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 90, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 25, 2001, 8:40 PM CDT for Lavaca County, Texas. It was in force for 65 min. 1 report 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 25, 2001, 8:40 PM CDT (01:40 UTC)
- Expired
- May 25, 2001, 9:45 PM CDT
- In force
- 65 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Lavaca County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 25, 8:45 PM CDT | Hail 1.5 | Moulton, 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 nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 1.7 hours before the alert went out and 197 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
- 1852 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 1288 m above ground
- 0-6 km bulk shear
- 41 kt
- 0-1 km storm-relative helicity
- 58 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 3.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 260140 SVRSAT TXC285-260245- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 840 PM CDT FRI MAY 25 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... LAVACA * UNTIL 945 PM CDT * AT 840 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER MOULTON...MOVING EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE... RURAL LAVACA COUNTY AT 850 PM * THIS WARNING INCLUDES LOCATIONS IN AND AROUND... MOULTON 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. LAT...LON 2957 9723 2939 9717 2926 9670 2964 9687
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 25, 2:50 PM CDT, 5 hours 50 minutes earlier.
Area forecast discussion, May 25, 2:50 PM CDT, 5 hours 50 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 250 PM CDT FRI MAY 25 2001 DEVELOPING CU FIELD AND CONVECTION ACROSS SOUTHEAST NEW MEXICO AND WEST TEXAS INDICATIVE OF APPROACHING UPPER AIR DISTURBANCE...MOVING INTO THE NORTHWEST PORTIONS OF THE FORECAST AREA THIS EVENING AND SPREADING SOUTHWARD THROUGH THE AREA BY LATE TONIGHT. SCATTERED SHOWERS AND THUNDERSTORMS WILL BE ASSOCIATED WITH THE DISTURBANCE... HOWEVER MAIN AREA OF SEVERITY MAY BE OVER WESTERN ZONES WHERE THERMAL GRADIENTS BEST. WEAKER DISTURBANCE SATURDAY WILL PRODUCE LESS ACTIVITY GIVEN A MIXED..MORE STABLE ATMOSPHERE. UPPER RIDGE BEGINS BUILDING SUNDAY ACROSS THE AREA WITH PRECIPITATION CUTTING OFF...MEMORIAL DAY THROUGH WEDNESDAY LOOKS TO BE DRY WITH THE UPPER PATTERN CHANGING LITTLE. ANOTHER UPPER TROUGH TO THE WEST WILL COUPLE WITH A DIFLUENT RIDGE OVER CENTRAL TEXAS TO BRING ANOTHER CHANCE OF RAIN TO THE AREA THURSDAY AND FRIDAY. PRELIMINARY NUMBERS... AUS 65/88/70/90/72 33000 DRT 69/100/72/102/75 30000 SAT 67/88/72/91/73 42200 .EWX...NONE. 02/08/23
In the hours before
Special weather statement, May 25, 3:25 PM CDT, 5 hours 15 minutes before
TXZ171>173-183>194-202>209-217>225-228-260200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 325 PM CDT FRI MAY 25 2001 CHANCE OF SHOWERS OR THUNDERSTOMRS THIS EVENING AND/OR TONIGHT... WITH A FEW ISOLATED SEVERE THUNDERSTORMS POSSIBLE...OVER PARTS OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. THIS OUTLOOK APPLIES TO THE FOLLOWING SPECIFIC COUNTIES... ATASCOSA...BANDERA...BASTROP...BEXAR...BLANCO...BURNET...CALDWELL... COMAL...DEWITT...DIMMIT...EDWARDS...FAYETTE...FRIO...GILLESPIE... GONZALES...GUADALUPE...HAYS...KARNES...KENDALL...KERR...KINNEY... LAVACA...LEE...LLANO...MAVERICK...MEDINA...REAL...TRAVIS...UVALDE... VAL VERDE...WILLIAMSON...WILSON AND ZAVALA. ANOTHER UPPER AIR DISTURBANCE IS FORECAST TO MOVE OVER PARTS OF SOUTH CENTRAL TEXAS TONIGHT...SOUTHWEST OF THE LARGE SCALE LOW PRESSURE SYSTEM ALOFT NEAR AND SOUTH OF THE GREAT LAKES REGION. THIS PATTERN COULD CAUSE A LITTLE MORE UNSTABLE CONDITIONS AND FAVOR FORMATION OF SHOWERS OR THUNDERSTORMS. AS A RESULT...THERE WILL STILL BE A CHANCE OF SHOWERS OR THUNDERSTORMS...A FEW ISOLATED THUNDERSTORMS POSSIBLY SEVERE...THIS EVENING AND/OR TONIGHT. STRONG OR DAMAGING DOWNBURST WINDS...SOME HAIL AND LIGHTNING IS POSSIBLE. SPOTTER NETWORKS MAY NEED TO BE ACTIVATED AS THE THUNDERSTORMS MOVE INTO THE THREATENED AREA.
Local storm report, May 25, 8:02 PM CDT, 38 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
802 PM CDT FRI MAY 25 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0740 PM ROCKSPRINGS TX 1.50 INCH HAIL
05/24/01 EDWARDS REPORTED BY BORDER PATROL
0830 PM BARKSDALE AND CAMP WOOD TX WIND DAMAGE
05/24/01 REAL POWER LINES DOWN
REPORTED BY LAW
ENFORCEMENT
0910 PM 19 N HONDO TX 1.50 INCH HAIL
05/24/01 MEDINA REPORTED BY LAW
ENFORCEMENT
0914 PM HONDO TX WIND DAMAGE
05/24/01 MEDINA TREES DOWNED
REPORTED BY
LAW ENFORCEMENT
0920 PM UVALDE TX WIND DAMAGE
05/24/01 UVALDE WIND DAMAGE
THROUGHOUT THE
COUNTY
REPORTED BY LAW
ENFORCEMENT
0925 PM DEL RIO TO BRACKETTVILLE TX WIND DAMAGE
05/24/01 VALVERDE/KINNEY NUMEROUS TREES
DOWNED
0945 PM ENCHANTED ROCK STATE PARK TX 1.75 INCH HAIL
05/24/01 LLANO OCCURRED AROUND
9PM
REPORTED BY LAW
ENFORCEMENT
0335 AM YORKTOWN TX WIND DAMAGE
05/25/01 DEWITT TREES DOWN
REPORTED BY LAW
ENFORCEMENT
JMEThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 10:29 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 61 min |
| May 25, 10:48 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Medina | 57 min |
| May 25, 11:27 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 63 min |
| May 25, 11:32 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Real | 28 min |
| May 26, 12:08 AM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 67 min |
| May 26, 12:40 AM CDT | Severe Thunderstorm Warning | EWX | Kinney | 65 min |
| May 26, 1:58 AM CDT | Severe Thunderstorm Warning | EWX | Maverick | 62 min |
| May 26, 1:47 PM CDT | Severe Thunderstorm Warning | EWX | Fayette | 28 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.