Alert archive / Texas / Tornado Warnings in 1991
Tornado Warning 5, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at Apr 13, 1991, 11:22 AM CDT for Williamson County, Texas. It was in force for 53 min.
The area
The counties it named.
The facts
- Issued
- Apr 13, 1991, 11:22 AM CDT (16:22 UTC)
- Expired
- Apr 13, 1991, 12:15 PM CDT
- In force
- 53 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Williamson County, TX
The nearest sounding before it
Stephenville/Cla, TX (KSEP), launched 12:00Z, 4.4 hours before the alert went out and 181 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 131620 RRA TORAUS TXC491-131715- BULLETIN - EBS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE AUSTIN TX 1122 AM CDT SAT APR 13 1991 THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A TORNADO WARNING EFFECTIVE UNTIL 1215 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL TEXAS ...WILLIAMSON COUNTY AT 1120 AM CDT...RADAR INDICATED A POSSIBLE TORNADO IN THE VICINITY OF SEWARD HILL IN WILLIAMSON COUNTY. WIND DAMAGE HAS BEEN REPORTED BETWEEN LEANDER AND LIBERTY HILL. MOVEMENT OF THE TORNADO IS NORTHEAST AT 35 MPH. THIS IS A DANGEROUS STORM SITUATION. ACT QUICKLY. IF YOU ARE IN THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF AVAILABLE. OTHERWISEj...GO TO A SMALL INTERIOR ROOM ON THE LOWEST FLOOR POSSIBLE. AVOID WINDOWS. ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
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, 8:25 AM CDT, 2 hours 57 minutes before
TXZ030-034-036-131500-
SPECIAL WEATHER STATEMENT...CORRECTION...
NATIONAL WEATHER SERVICE AUSTIN TX
820 AM CDT SAT APR 13 1991
...A SEVERE THUNDERSTORMS WATCH FOR LLANO...MILLS AND SAN SABA
COUNTIES TILL 10 AM...
...FLASH FLOOD WATCH FOR LAMPASAS COUNTY TODAY...
AT 810 AM CDT RADAR INDICATED A LINE OF THUNDERSTORMS SOME POSSIBLY
SEVERE FROM GOLDWAITHE TO SAN SABA...MASON AND JUNCTION. THE POSSIBLE
SEVERE STORM WAS JUST EAST OF MASON.
MOVEMENT OF THE PRECIPITATION WAS TO THE EAST AT 40 MPH.
THIS POSSIBLE SEVERE STORM COULD MOVE INTO SOUTHERN SAN SABA AND LLANO
COUNTIES IN THE NEXT HALF HOUR. PERSONS SHOULD BE PREPARED TO TAKE ACTION
AT A MOMENTS NOTICE.
CAMPERS NEAR CREEKS tAND STREAMS SHOULD ALSO BE AWARE OF RAPIDLY RISING
WATER.
STAY INFORMED OF THE LATEST WEATHER DEVELOPMENTS FOR FURTHER STATEMENTS
AND POSSIBLE WARINGS.Special weather statement, Apr 13, 8:36 AM CDT, 2 hours 46 minutes before
TXZ034-035-038-039-054-131420- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 830 AM CDT SAT APR 13 1991 ...THUNDERSTORMS MOVING EAST ACROSS THE TEXAS HILL COUNTRY ... AT 825 AM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF SHOWERS AND THUNDERSTORMS ACROSS THE TEXAS HILL COUNTRY FROM NEAR LAMPASAS TO EAST OF JUNCTION TO BARKSDALE. OTHER SHOWERS AND THUNDERSTORMS WERE DEVELOPING FURTHER EAST IN SOUTH CENTRAL TEXAS OVER BANDERA AND BEXAR COUNTIES. MOVEMENT OF THIS PRECIPITATION WAS TO THE SOUTHEAST AT 25 MPH. PERIODS OF VERY 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 THIS MORNING. A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 10 AM FOR THE NORTH PORTIONS OF THE HILL COUNTRY INCLUDING KIMBLE...LLANO...MASON...AND MENARD COUNTIES. THIS WATCH AREA MAY BE EXTENDED FURTHER EAST AND SOUTH LATER TODAY. RESIDENTS IN SOUTH CENTRAL TEXAS SHOULD REMAINED TUNED TO WEATHER DEVELOPMENTS THE REMAINDER OF THIS MORNING.
Special weather statement, Apr 13, 9:10 AM CDT, 2 hours 12 minutes before
TXZ034>036-038-039-131500- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 908 AM CDT SAT APR 13 1991 ...A SEVERE THUNDERSTORM WATCH NOW IN EFFECT UNTIL 3 PM CDT FOR PORTIONS OF THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS... THE NATIONAL WEATHER SERVICE HAS EXTENDED THE SEVERE THUNDERSTORM WATCH FURTHER EAST OVER PORTIONS OF SOUTH CENTRAL TEXAS...GENERALLY NORTH OF A JUNCTION TO AUSTIN LINE. THIS INCLUDES THE COUNTIES OF KERR...GILLESPIE ...BLANCO...KIMBLE...BURNET...LLANO...MASON...HAYS...LEE...BASTROP... TRAVIS AND WILLIAMSON IN SOUTH CENTRAL TEXAS. THE WATCH DOES NOT INCLUDE BEXAR COUNTY OR THE SAN ANTONIO AREA AT THE PRESENT TIME. AT 900 AM CDT...NATIONAL WEATHER SERVICE IN HONDO INDICATED A LINE OF SHOWERS AND THUNDERSTORMS FROM NEAR LAMPASAS TO WEST KERR COUNTY NEAR MOUNTAIN HOME TO NEAR LEAKEY IN REAL COUNTY. THE STRONGEST STORM IN THE IMMEDIATE SOUTH CENTRAL TEXAS AREA WAS NEAR THE TOWN OF LEAKEY. OTHER SHOWERS WERE OCCURRING IN THE SAN ANTONIO METROPOLITAN AREA. MOVEMENT OF THE SHOWERS AND STORMS WAS TO THE SOUTHEAST AT 25 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 THIS MORNING. RESIDENTS IN SOUTH CENTRAL TEXAS SHOULD REMAINED TUNED TO WEATHER DEVELOPMENTS THE REMAINDER OF THIS MORNING.
Special weather statement, Apr 13, 10:05 AM CDT, 1 hour 17 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, 15 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, 9 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.
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, 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, 3:38 PM CDT | Tornado Warning | EWX | Travis, Williamson | 52 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; the sounding from the Mesonet's radiosonde archive.