Alert archive / Texas / Tornado Warnings in 1999
Tornado Warning 29, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this tornado warning at Aug 23, 1999, 4:20 PM CDT for Burnet County, Williamson County, Texas. It was in force for 45 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
- Aug 23, 1999, 4:20 PM CDT (21:20 UTC)
- Expired
- Aug 23, 1999, 5:05 PM CDT
- In force
- 45 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Burnet County, TX, Williamson County, TX
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 9.3 hours before the alert went out and 242 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
- 476 J/kg
- Mixed-layer CIN
- -213 J/kg
- Mixed-layer LCL
- 1496 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -51 m²/s²
- 0-3 km storm-relative helicity
- 20 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
601 WFUS1 KSAT 232120 RRA TORSAT TXC053-491-232205- BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 420 PM CDT MON AUG 23 1999 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * TORNADO WARNING FOR... BURNET COUNTY IN TEXAS WESTERN WILLIAMSON COUNTY IN TEXAS * UNTIL 505 PM CDT * AT 422 PM CDT... WAS INDICATED BY NATIONAL WEATHER SERVICE RADAR A DEVELOPING TORNADO NEAR LIBERTY HILL MOVING WEST NORTHWEST AT 25 MPH. * SOME CITIES AND LOCATIONS IN THE PATH OF THIS STORM ARE... BERTRAM BY 435 PM OATMEAL BY 435 PM. IF YOU ARE IN A MULTIPLE STORY BUILDING...GO TO A SMALL INTERIOR ROOM AWAY FROM WINDOWS. MO IF YOU ARE CAUGHT OUTSIDE...SEEK SAFETY IN A NEARBY STURDY BUILDING. AS A LAST RESORT... SEEK REFUGE IN A CULVERT... DITCH OR LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS. BEWARE THE THREAT OF RISING WATER.
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.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this tornado warning went out at Aug 23, 2:45 PM CDT, 1 hour 35 minutes earlier.
Area forecast discussion, Aug 23, 2:45 PM CDT, 1 hour 35 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
245 PM CDT MON AUG 23 1999
MAIN CONCERN FOR TONIGHT IS INTENSE NOCTURNAL CORE RAINS THAT
COULD DEVELOP IN NEAR THE CENTER OF THE REMNANTS OF BRET. FEEL
KEEPING FFA FOR THE SWRN COUNTIES THRU TONIGHT WARRANTED DUE TO THE
PROXIMITY OF THE LOW TO THESE COUNTIES. WILL ALSO LEAVE A FFA UP
JUST FOR THIS EVENING ACROSS THE SERN COUNTIES WHERE RAIN BANDS WILL
SLOWLY DIMINISH DURING THE EVENING HOURS WITH LOSS OF DAYTIME
HEATING. OTHERWISE SHOULD SEE A GRADUAL RETURN WIDELY SCT AMS
SHOWERS AND TSTMS BY WED...EXCEPT FOR GOOD CHANCE POPS CONTG FOR THE
SWRN ZONES ON TUESDAY. IN THE EXTENDED...WITH BRET WELL INTO MEXICO
...UPR RDG OVR THE ROCKIES TO PREVAIL...BUT WEAK ENOUGH THIS AREA TO
KEEP IN SLIGHT CHANCE POPS BUT RESUME TEMPS IN THE 90S. IT APPEARS
ANY FRONTAL BOUNDARIES TO STAY WELL TO THE NORTH.
PRELIMS...
AUS 74/95/75/96 3322
SAT 74/91/75/95 6422
DRT 74/90/74/95 6633
.EWX...FLASH FLOOD WATCH THIS EVENING SERN COUNTIES S CENTRAL TX.
FLASH FLOOD WATCH TNGT SWRN COUNTIES OF S CENTRAL TX.
01/04In the hours before
Special weather statement, Aug 23, 2:15 PM CDT, 2 hours 5 minutes before
TXZ185>193-202>209-217>225-228-240000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 215 PM CDT MON AUG 23 1999 ...TORNADO WATCH REMAINS IN EFFECT UNTIL 4 PM FOR FRIO...ATASCOSA AND KARNES COUNTIES... ...FUNNEL CLOUDS AND BRIEF TORNADOES WILL BE POSSIBLE ACROSS MUCH OF SOUTH CENTRAL TEXAS THROUGH THE EARLY EVENING HOURS... THE RAINBANDS FROM TROPICAL STORM BRET WILL GET A BOOST FROM DAYTIME HEATING AND PRODUCE ISOLATED STRONG THUNDERSTORMS ACROSS SOUTH CENTRAL TEXAS THIS AFTERNOON INTO EARLY THIS EVENING. THESE THUNDERSTORMS WILL BE PRIMARILY SOUTH OF A LINE FROM BRACKETTVILLE TO FREDERICKSBURG TO AUSTIN TO LA GRANGE. ALTHOUGH THESE FUNNELS DO NOT OFTEN REACH THE GROUND...A FEW BECOME BRIEF TORNADOES...PRODUCING DAMAGING AND LIFE THREATENING WINDS. THE THREAT FOR TORNADOES WILL DECREASE AFTER SUNDOWN AS DAYTIME CONVECTION BECOMES WEAKER. IF YOU SEE A TORNADO APPROACHING...SEEK SHELTER IN A STURDY BUILDING. IF CAUGHT OUTDOORS...TAKE COVER IN A DITCH OR CULVERT TO PROTECT YOURSELF FROM FLYING DEBRIS. BE CAUTIOUS NOT TO PUT YOURSELF IN DANGER OF FLASH FLOODS WHICH ALSO ARE A THREAT FOR THIS AFTERNOON AND THIS EVENING. FOR FURTHER INFORMATION ON THE FLASH FLOOD POTENTIAL USE YOUR LOCAL MEDIA OUTLETS TO CHECK FOR FLASH FLOOD WARNINGS AND STATEMENTS. STAY TUNED TO THIS STATION FOR THE LATEST INFORMATION ON THE TORNADO AND FLASH FLOOD THREATS.
Special weather statement, Aug 23, 2:15 PM CDT, 2 hours 5 minutes before
TXZ185>193-202>209-217>225-228-240000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 215 PM CDT MON AUG 23 1999 ...TORNADO WATCH REMAINS IN EFFECT UNTIL 4 PM FOR FRIO...ATASCOSA AND KARNES COUNTIES... ...FUNNEL CLOUDS AND BRIEF TORNADOES WILL BE POSSIBLE ACROSS MUCH OF SOUTH CENTRAL TEXAS THROUGH THE EARLY EVENING HOURS... THE RAINBANDS FROM TROPICAL STORM BRET WILL GET A BOOST FROM DAYTIME HEATING AND PRODUCE ISOLATED STRONG THUNDERSTORMS ACROSS SOUTH CENTRAL TEXAS THIS AFTERNOON INTO EARLY THIS EVENING. THESE THUNDERSTORMS WILL BE PRIMARILY SOUTH OF A LINE FROM BRACKETTVILLE TO FREDERICKSBURG TO AUSTIN TO LA GRANGE. ALTHOUGH THESE FUNNELS DO NOT OFTEN REACH THE GROUND...A FEW BECOME BRIEF TORNADOES...PRODUCING DAMAGING AND LIFE THREATENING WINDS. THE THREAT FOR TORNADOES WILL DECREASE AFTER SUNDOWN AS DAYTIME CONVECTION BECOMES WEAKER. IF YOU SEE A TORNADO APPROACHING...SEEK SHELTER IN A STURDY BUILDING. IF CAUGHT OUTDOORS...TAKE COVER IN A DITCH OR CULVERT TO PROTECT YOURSELF FROM FLYING DEBRIS. BE CAUTIOUS NOT TO PUT YOURSELF IN DANGER OF FLASH FLOODS WHICH ALSO ARE A THREAT FOR THIS AFTERNOON AND THIS EVENING. FOR FURTHER INFORMATION ON THE FLASH FLOOD POTENTIAL USE YOUR LOCAL MEDIA OUTLETS TO CHECK FOR FLASH FLOOD WARNINGS AND STATEMENTS. STAY TUNED TO THIS STATION FOR THE LATEST INFORMATION ON THE TORNADO AND FLASH FLOOD THREATS.
Special weather statement, Aug 23, 3:40 PM CDT, 40 minutes before
TXZ185>193-202>209-217>225-228-240500- SPECIAL WEATHER STATEMENT...UPDATED NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 340 PM CDT MON AUG 23 1999 ...TORNADO WATCH REMAINS WILL EXPIRE AT 4 PM FOR FRIO...ATASCOSA AND KARNES COUNTIES... ...FUNNEL CLOUDS AND BRIEF TORNADOES WILL REMAIN POSSIBLE ACROSS MUCH OF SOUTH CENTRAL TEXAS THROUGH THE EARLY EVENING HOURS... THE RAINBANDS FROM TROPICAL STORM BRET WILL GET A BOOST FROM DAYTIME HEATING AND PRODUCE ISOLATED STRONG THUNDERSTORMS ACROSS SOUTH CENTRAL TEXAS EARLY THIS EVENING. THESE THUNDERSTORMS WILL BE PRIMARILY SOUTH OF A LINE FROM DEL RIO TO FREDERICKSBURG TO AUSTIN TO LA GRANGE. ALTHOUGH THESE FUNNELS DO NOT OFTEN REACH THE GROUND...A FEW BECOME BRIEF TORNADOES...PRODUCING DAMAGING AND LIFE THREATENING WINDS. THE THREAT FOR TORNADOES WILL DECREASE AFTER MIDNIGHT AS THE CONVECTION ALONG THE OUTER RAINBANDS BECOMES WEAKER. IF YOU SEE A TORNADO APPROACHING...SEEK SHELTER IN A STURDY BUILDING. IF CAUGHT OUTDOORS...TAKE COVER IN A DITCH OR CULVERT TO PROTECT YOURSELF FROM FLYING DEBRIS. BE CAUTIOUS NOT TO PUT YOURSELF IN DANGER OF FLASH FLOODS WHICH ALSO ARE A THREAT FOR THIS EVENING. FOR FURTHER INFORMATION ON THE FLASH FLOOD POTENTIAL USE YOUR LOCAL MEDIA OUTLETS TO CHECK FOR FLASH FLOOD WARNINGS AND STATEMENTS. STAY TUNED TO THIS STATION FOR THE LATEST INFORMATION ON THE TORNADO AND FLASH FLOOD THREATS.
Special weather statement, Aug 23, 3:40 PM CDT, 40 minutes before
TXZ185>193-202>209-217>225-228-240500- SPECIAL WEATHER STATEMENT...UPDATED NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 340 PM CDT MON AUG 23 1999 ...TORNADO WATCH REMAINS WILL EXPIRE AT 4 PM FOR FRIO...ATASCOSA AND KARNES COUNTIES... ...FUNNEL CLOUDS AND BRIEF TORNADOES WILL REMAIN POSSIBLE ACROSS MUCH OF SOUTH CENTRAL TEXAS THROUGH THE EARLY EVENING HOURS... THE RAINBANDS FROM TROPICAL STORM BRET WILL GET A BOOST FROM DAYTIME HEATING AND PRODUCE ISOLATED STRONG THUNDERSTORMS ACROSS SOUTH CENTRAL TEXAS EARLY THIS EVENING. THESE THUNDERSTORMS WILL BE PRIMARILY SOUTH OF A LINE FROM DEL RIO TO FREDERICKSBURG TO AUSTIN TO LA GRANGE. ALTHOUGH THESE FUNNELS DO NOT OFTEN REACH THE GROUND...A FEW BECOME BRIEF TORNADOES...PRODUCING DAMAGING AND LIFE THREATENING WINDS. THE THREAT FOR TORNADOES WILL DECREASE AFTER MIDNIGHT AS THE CONVECTION ALONG THE OUTER RAINBANDS BECOMES WEAKER. IF YOU SEE A TORNADO APPROACHING...SEEK SHELTER IN A STURDY BUILDING. IF CAUGHT OUTDOORS...TAKE COVER IN A DITCH OR CULVERT TO PROTECT YOURSELF FROM FLYING DEBRIS. BE CAUTIOUS NOT TO PUT YOURSELF IN DANGER OF FLASH FLOODS WHICH ALSO ARE A THREAT FOR THIS EVENING. FOR FURTHER INFORMATION ON THE FLASH FLOOD POTENTIAL USE YOUR LOCAL MEDIA OUTLETS TO CHECK FOR FLASH FLOOD WARNINGS AND STATEMENTS. STAY TUNED TO THIS STATION FOR THE LATEST INFORMATION ON THE TORNADO AND FLASH FLOOD THREATS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 23, 7:22 AM CDT | Flash Flood Warning | EWX | Atascosa, Frio | 5 hr |
| Aug 23, 7:51 AM CDT | Flash Flood Warning | EWX | Karnes | 4 hr |
| Aug 23, 11:59 AM CDT | Flash Flood Warning | EWX | DeWitt | 3 hr |
| Aug 23, 12:30 PM CDT | Flash Flood Warning | EWX | Atascosa, Frio | 4 hr |
Nearby
Tornado Warnings in Texas, 1999Every tornado warning in 1999Tornadoes in 1999
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.