Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 31, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 12, 2001, 1:58 AM CST for Bastrop County, Lee County, Williamson County, Texas. It was in force for 62 min. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Mar 12, 2001, 1:58 AM CST (07:58 UTC)
- Expired
- Mar 12, 2001, 3:00 AM CST
- In force
- 62 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Bastrop County, TX, Lee County, TX, Williamson County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Mar 12, 2:15 AM CST | Thunderstorm Wind | Taylor, TX | Severe thunderstorm winds caused damage to roofs and sheds in the area around Taylor during the early morning hours. |
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
Fort Worth, TX (KFWD), launched 00:00Z, 8.0 hours before the alert went out and 275 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
- 1045 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 503 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 118 m²/s²
- 0-3 km storm-relative helicity
- 149 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 2.8
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 120802 SVRSAT TXC021-287-491-120900- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 158 AM CST MON MAR 12 2001 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... BASTROP COUNTY WILLIAMSON COUNTY LEE COUNTY * UNTIL 3 AM CST * AT 158 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR MANOR...OR ABOUT 10 MILES WEST OF ELGIN. MOVEMENT WAS TOWARD THE EAST AT 30 MPH. * THE SEVERE THUNDERSTORM WILL BE... IN THE COUPLAND-ELGIN-BUTLER AREA AROUND 215 AM CST IN THE LEXINGTON-LINCOLN AREA AROUND 245 AM CST
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 Mar 11, 9:45 PM CST, 4 hours 13 minutes earlier.
Area forecast discussion, Mar 11, 9:45 PM CST, 4 hours 13 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 945 PM CST SUN MAR 11 2001 UPDATED ZONE FORECASTS TO INCLUDE THUNDER IN THE EDWARDS PLATEAU AND HILL COUNTRY FOR THE REST OF TONIGHT. SPC SUGGESTS A WATCH MAY BE IN ORDER SHORTLY IF CONVECTION CONTINUES TO DEVELOP AND SLIP SOUTHEASTWARD INTO NORTHWEST COUNTIES. ALSO MENTIONED SHOWERS OR THUNDERSTORMS FOR THE AUSTIN AND SAN ANTONIO AREAS AS WELL. .EWX...NONE.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 11, 10:21 PM CST | Severe Thunderstorm Warning | EWX | Val Verde | 54 min |
| Mar 11, 10:29 PM CST | Severe Thunderstorm Warning | EWX | Real | 61 min |
| Mar 11, 11:14 PM CST | Severe Thunderstorm Warning | EWX | Bandera, Real, Uvalde | 61 min |
| Mar 11, 11:42 PM CST | Tornado Warning | EWX | Val Verde | 33 min |
| Mar 12, 12:11 AM CST | Severe Thunderstorm Warning | EWX | Bandera, Medina | 64 min |
| Mar 12, 12:18 AM CST | Severe Thunderstorm Warning | EWX | Kinney | 57 min |
| Mar 12, 12:55 AM CST | Severe Thunderstorm Warning | EWX | Bexar, Kendall | 65 min |
| Mar 12, 1:09 AM CST | Severe Thunderstorm Warning | EWX | Bandera, Real, Uvalde | 66 min |
| Mar 12, 1:16 AM CST | Severe Thunderstorm Warning | EWX | Travis | 59 min |
| Mar 12, 1:44 AM CST | Severe Thunderstorm Warning | EWX | Comal | 61 min |
| Mar 12, 2:04 AM CST | Severe Thunderstorm Warning | EWX | Bandera, Medina | 56 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.