Alert archive / Texas / Tornado Warnings in 1991
Tornado Warning 6, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at Apr 13, 1991, 3:38 PM CDT for Travis County, Williamson County, Texas. It was in force for 52 min. 2 reports 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
- Apr 13, 1991, 3:38 PM CDT (20:38 UTC)
- Expired
- Apr 13, 1991, 4:30 PM CDT
- In force
- 52 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Travis County, TX, Williamson County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 13, 3:40 PM CDT | Hail 2 | Williamson, TX | |
| Apr 13, 4:11 PM CDT | Hail 1.75 | Williamson, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Stephenville/Cla, TX (KSEP), launched 12:00Z, 8.6 hours before the alert went out and 196 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
- 805 J/kg
- Mixed-layer CIN
- -308 J/kg
- Mixed-layer LCL
- 1877 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 175 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAUS 132036 TORAUS TXC453-491-132130- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE AUSTIN TX 338 PM CDT SAT APR 13 1991 THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 430 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL TEXAS ...NORTHERN TRAVIS COUNTY...SOUTHERN WILLIAMSON COUNTY AT 330 PM CDT...A FUNNEL CLOUD WAS REPORTED AT PARMER AND HIGHWAY 620 MOVING EAST AT 15 MPH. THIS STORM HAS PRODUCED LARGE HAIL IN THE VICINITY OF CEDAR PARK. IF YOU ARE IN THE PATH OF A TORNADO...THE SAFEST PLACE IS A BASEMENT. GET UNDER A WORKBENCH OR PIECE OF STURDY FURNITURE. IF NO BASEMENT IS AVAILABLE...SEEK SHELTER IN AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST FLOOR. USE BLANKETS...PILLOWS... OR CUSHIONS TO COVER YOUR BODY. AVOID WINDOWS.
What forecasters said that day
The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Apr 13, 10:05 AM CDT, 5 hours 33 minutes before
TXZ035>036-038-039-131600- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1005 AM CDT SAT APR 13 1991 ...A SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 3 PM CDT FOR PORTIONS OF THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS... A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 3 PM CDT FOR PORTIONS OF THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS INCLUDING KERR COUNTY. AT 1000 AM CDT...A LINE OF SCATTERED SHOWERS AND THUNDERSTORMS EXTENDED FROM NORTH OF FREDERICKSBURG TO WEST OF KERRVILLE TO NEAR GARNER STATE PARK IN NORTH UVALDE COUNTY. THE STRONGEST STORM WAS LOCATED NEAR HUNT TEXAS IN CENTRAL KERR COUNTY. OTHER SHOWERS AND A FEW THUNDERSTORMS WERE SCATTERED FURTHER EAST IN AND AROUND BEXAR COUNTY AND THE SAN ANTONIO METROPOLITAN AREA. MOVEMENT OF THE SHOWERS AND THUNDERSTORMS WAS TO THE EAST AT 15 MPH. PERIODS OF HEAVY RAINS...GUSTY WINDS...AND DANGEROUS LIGHTNING CAN BE EXPECTED WITH THE STRONGER STORMS. SOME FLOODING OF LOW LYING AREAS INCLUDING LOW-WATER CROSSINGS IS POSSIBLE IN THE HILL COUNTRY THIS MORNING. PERSONS IN SOUTH CENTRAL TEXAS SHOULD KEEP AWARE OF WEATHER DEVELOPMENTS AND LISTEN TO LOCAL RADIO...TV...OR NOAA WEATHER RADIO FOR LATER UPDATES.
Special weather statement, Apr 13, 11:07 AM CDT, 4 hours 31 minutes before
TXZ034>037-131730- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 1105 AM CDT SAT APR 13 1991 ...A SEVERE THUNDERSTORMS WATCH IN EFFECT TIL 3 PM CDT... ...FLASH FLOOD WATCH FOR LAMPASAS COUNTY TODAY... AT 1055 AM CDT...RADAR INDICATED A SOLID LINE OF THUNDERSTORMS...PRODUCING HEAVY RAIN AND POSSIBLE SMALL HAIL...EXTENDED FROM NEAR LAKE TRAVIS TO JUST EAST OF LIBERTY HILL TO NEAR KILLEEN. OTHER SHOWERS AND THUNDERSTORMS EXTENDED FROM NEAR SAN ANTONIO NORTHEAST ACROSS CENTRAL TEXAS TO WACO. MOVEMENT WAS NORTHEAST AT 35 MPH. PERSONS IN WESTERN TRAVIS COUNTY AND ACROSS WILLIAMSON COUNTY SHOULD BE AWARE OF RISING WATER AND PREPARE TO MOVE TO HIGHER GROUND...ESPECIALLY IN LOOW LYING AREAS AND ALONG CREEKS AND RIVERS. STAY TUNED TO COMMERCIAL TV/RADIO OR NOAA WEATHER RADIO FOR FURTHER STATEMENTS OR POSSIBLE WARNINGS.
Special weather statement, Apr 13, 11:13 AM CDT, 4 hours 25 minutes before
TXZ035>036-038-039-131700- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1110 AM CDT SAT APR 13 1991 A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 3 PM CDT FOR PORTIONS OF THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS INCLUDING KERR COUNTY. NATIONAL WEATHER SERVICE IN HONDO INDICATED THAT THE STORMS IN AND AROUND BEXAR COUNTY HAD DECREASED IN INTENSITY OVER THE PAST HOUR. AT 1105 AM CDT...SCATTERED SHOWERS AND A FEW THUNDERSTORMS WERE OVER SOUTH CENTRAL TEXAS...FROM NORTH OF AUSTIN TO SAN ANTONIO AND WEST TO NEAR BOERNE. THE STRONGEST THUNDERSTORM WAS NORTH OF AUSTIN. MOVEMENT WAS TO THE SOUTHEAST AT 20 MPH. ALTHOUGH THE STORM ACTIVITY HAD DECREASED FOR THE MOMENT IN THE SAN ANTONIO AREA AND SURROUNDING COUNTIES...CONDITIONS REMAIN FAVORABLE FOR ADDITIONAL THUNDERSTORM DEVELOPMENT THIS AFTERNOON. SOUTHERLY WINDS CONTINUE TO BRING VERY MOIST AND UNSTABLE AIR OVER SOUTH TEXAS. IN ADDITION...A WEAK COLD FRONT REMAINS WEST OF SOUTH CENTRAL TEXAS WHICH COULD SERVE AS A FOCUS FOR THUNDERSTORM DEVELOPMENT LATER TODAY. PERSONS IN SOUTH CENTRAL TEXAS SHOULD KEEP AWARE OF WEATHER DEVELOPMENTS AND LISTEN TO LOCAL RADIO...TV...OR NOAA WEATHER RADIO FOYR LATER UPDATES.
Special weather statement, Apr 13, 12:21 PM CDT, 3 hours 17 minutes before
TXZ035>036-039-131800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1220 PM CDT SAT APR 13 1991 ...SEVERE THUNDERSTORM WATCH FOR KERR COUNTY IS CANCELLED... THE SEVERE THUNDERSTORM WATCH FOR KERR COUNTY HAS BEEN CANCELLED. THUNDERSTORMS THAT WERE IN SOUTH CENTRAL TEXAS HAVE MOVED NORTHEAST AND EAST INTO NORTH CENTRAL TEXAS. A TORNADO WATCH HAS BEEN ISSUED FOR THE REMAINDER OF THE AFTERNOON FOR PARTS OF NORTHEAST AND NORTH CENTRAL TEXAS...GENERALLY EAST AND NORTH OF A DALLAS TO WACO TO NORTH OF AUSTIN TO COLLEGE STATION TO HUNTSVILLE LINE. AT 1215 PM CDT...WIDELY SCATTERED SHOWERS REMAINED OVER SOUTH CENTRAL TEXAS...MOVING TO THE SOUTHEAST AT 15 MPH. ALTHOUGH THE THREAT OF SEVERE WEATHER HAS ENDED FOR PARTS OF SOUTH CENTRAL TEXAS FOR THE TIME BEING...WEATHER CONDITIONS REMAIN FAVORABLE FOR ADDITIONAL THUNDERSTORM DEVELOPMENT THIS AFTERNOON. FURTHER WEATHER UPDATES FROM THE SAN ANTONIO WEATHER OFFICE WILL B E ISSUED IF AND WHEN THUNDERSTORMS REDEVELOP IN THE SOUTH CENTRAL TEXAS AREA.
Special weather statement, Apr 13, 2:14 PM CDT, 1 hour 24 minutes before
TXZ034>037-132030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 210 PM CDT SAT APR 13 1991 ...THUNDERSTORM DEVELOPING WEST OF LAKE TRAVIS... AT 2 PM CDT AUSTIN RADAR INDICATED A THUNDEcRSTORM DEVELOPING RAPIDLY JUST TO THE WEST OF LAKE TRAVIS. THIS THUNDERSTORM MAY BECOME SEVERE WITHIN THE HOUR. IF YOU ON LAKE TRAVIS PLEASE MOVE TO SHORE RIGHT AWAY
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 8:35 AM CDT | Severe Thunderstorm Warning | EWX | Llano | 40 min |
| Apr 13, 11:22 AM CDT | Tornado Warning | EWX | Williamson | 53 min |
| Apr 13, 12:48 PM CDT | Flash Flood Warning | EWX | Williamson | 3 hr |
| Apr 13, 3:11 PM CDT | Severe Thunderstorm Warning | EWX | Travis, Williamson | 64 min |
| Apr 13, 4:30 PM CDT | Severe Thunderstorm Warning | EWX | Williamson | 35 min |
| Apr 13, 4:55 PM CDT | Severe Thunderstorm Warning | EWX | Burleson | 50 min |
| Apr 13, 5:59 PM CDT | Severe Thunderstorm Warning | EWX | Burleson, Lee | 61 min |
| Apr 13, 6:27 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop | 48 min |
| Apr 13, 6:58 PM CDT | Severe Thunderstorm Warning | EWX | Burleson | 32 min |
Nearby
Tornado Warnings in Texas, 1991Every tornado warning in 1991Tornadoes in 1991
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.