Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 48, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 23, 2001, 1:31 PM CDT for Gonzales County, Guadalupe County, Texas. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- Apr 23, 2001, 1:31 PM CDT (18:31 UTC)
- Expired
- Apr 23, 2001, 2:30 PM CDT
- In force
- 59 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Gonzales County, TX, Guadalupe County, TX
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 6.5 hours before the alert went out and 202 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
- 1138 J/kg
- Mixed-layer CIN
- -81 J/kg
- Mixed-layer LCL
- 612 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- 87 m²/s²
- 0-3 km storm-relative helicity
- 206 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.8
The text
As transmitted, in the capitals the NWS used until 2016.
757 WUUS54 KEWX 231832 SVRSAT TXC177-187-231930- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 131 PM CDT MON APR 23 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... GONZALES COUNTY GUADALUPE COUNTY * UNTIL 230 PM CDT * AT 131 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 37 MILES WEST OF GONZALES...OR ABOUT 11 MILES SOUTHWEST OF SEGUIN...MOVING EAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE... 5 MILES SOUTH OF GONZALES AT 230 PM CDT
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 Apr 23, 11:02 AM CDT, 2 hours 29 minutes earlier.
Area forecast discussion, Apr 23, 11:02 AM CDT, 2 hours 29 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1102 AM CDT MON APR 23 2001 SMALL CLUSTER OF VERY HEAVY RAINFALL CONTINUES IN THE SAN ANTONIO AREA WITH A FEW REPORTS OF 3 TO 3.5 INCHES OF RAIN. CLUSTER HAS SHOWN SIGNS OF WEAKENING IN INTENSITY AS REDEVELOPMENT TAKES PLACE JUST WEST. THESE THE RESULT OF SHORT-WAVE AHEAD OF COLD FRONT. MODELS INDICATE SHORT-WAVE WILL MOVE EAST BY EVENING. SO...WILL MAINTAIN HIGH POPS AND SEVERE/HEAVY RAINFALL MENTIONS...ESPECIALLY SOUTH AND EAST FOR THIS AFTERNOON. HOWEVER...FLASH FLOOD WATCH CONTINUES TO BE NOT NEEDED AS WIDESPREAD FLOODING NOT EXPECTED. WILL MAKE SOME ADJUSTMENTS TO WINDS AND TEMPERATURES BASED ON ONGOING TRENDS. ANY CHANGES TO REMAINING PERIODS WILL WAIT UNTIL AFTERNOON PACKAGE. 04/06. .EWX...NONE.
In the hours before
Local storm report, Apr 23, 10:03 AM CDT, 3 hours 28 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
1003 AM CDT MON APR 23 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATIONR....
0400 AM 13 N VANDERPOOL TX TORNADO
04/23/01 BANDERA TORNADO REPORTED BY CO-OP
OBSERVERSLocal storm report, Apr 23, 1:20 PM CDT, 11 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
120 PM CDT MON APR 23 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1212 PM SAN ANTONIO TX 1.25 INCH HAIL
04/23/01 BEXAR LOOP 410/RIGSBY
JPBThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 11:15 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 60 min |
| Apr 23, 12:11 AM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 64 min |
| Apr 23, 12:21 AM CDT | Severe Thunderstorm Warning | EWX | Edwards | 69 min |
| Apr 23, 12:54 AM CDT | Flash Flood Warning | EWX | Val Verde | 3 hr |
| Apr 23, 1:18 AM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 42 min |
| Apr 23, 2:02 AM CDT | Flash Flood Warning | EWX | Edwards | 118 min |
| Apr 23, 3:24 AM CDT | Severe Thunderstorm Warning | EWX | Bandera, Kerr | 66 min |
| Apr 23, 7:50 AM CDT | Flash Flood Warning | EWX | Bexar, Comal | 115 min |
| Apr 23, 9:20 AM CDT | Flash Flood Warning | EWX | Bexar, Comal | 3 hr |
| Apr 23, 9:39 AM CDT | Flash Flood Warning | EWX | Guadalupe | 3 hr |
| Apr 23, 12:07 PM CDT | Flash Flood Warning | EWX | Bexar, Medina | 4 hr |
| Apr 23, 12:16 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 59 min |
| Apr 23, 12:49 PM CDT | Severe Thunderstorm Warning | EWX | Medina | 41 min |
| Apr 23, 2:05 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 55 min |
| Apr 23, 2:18 PM CDT | Severe Thunderstorm Warning | EWX | Wilson | 57 min |
| Apr 23, 3:10 PM CDT | Flash Flood Warning | EWX | Bexar | 5 hr |
| Apr 23, 4:10 PM CDT | Severe Thunderstorm Warning | EWX | Wilson | 50 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.