Alert archive / Texas / Severe Thunderstorm Warnings in 1992
Severe Thunderstorm Warning 155, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jul 18, 1992, 8:48 PM CDT for Travis County, Williamson County, Texas. It was in force for 57 min.
The area
The counties it named.
The facts
- Issued
- Jul 18, 1992, 8:48 PM CDT (01:48 UTC)
- Expired
- Jul 18, 1992, 9:45 PM CDT
- In force
- 57 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Travis County, TX, Williamson County, TX
The nearest sounding before it
Stephenville/Cla, TX (KSEP), launched 00:00Z, 1.8 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
- 408 J/kg
- Mixed-layer CIN
- -99 J/kg
- Mixed-layer LCL
- 1327 m above ground
- 0-6 km bulk shear
- 68 kt
- 0-1 km storm-relative helicity
- 283 m²/s²
- 0-3 km storm-relative helicity
- 269 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 4.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAUS 190148 SVRAUS TXC453-491-190245- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN TX 848 PM CDT SAT JUL 18 1992 THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 945 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL TEXAS ...NORTHWESTERN TRAVIS COUNTY...WESTERN WILLIAMSON COUNTY AUSTIN WEATHER SERVICE RADAR SHOWS A SEVERE THUNDERSTORM ABOUT 15 MILES NORTHWEST OF THE CITY OF AUSTIN NEAR LAKE TRAVIS MOVING TOWARDS THE NOETHEAST AT 15 MPH. THIS SEVERE THUNDERSTORM WILL BE MOVING OVER THE WESTER PORTIONS OF WILLIAMSON COUNTY. SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND AROUND 60 MPH OR HIGHER...LARGE HAIL...DEADLY LIGHTNING...AND VERY HEAVY RAIN. SLOW DOWN OR MOVE COMPLETELY OFF ROADWAYS IN HEAVY RAINS. BRIEF LOCALIZED FLOODING ACCOMPANY MANY SEVERE THUNDERSTORMS. LISTEN FOR LOCATION AND MOVEMENT OF STORMS...YOU MAY BE DOWN-
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.
In the hours before
Special weather statement, Jul 18, 6:05 PM CDT, 2 hours 43 minutes before
TXZ030-034>037-190000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 6 PM CDT SAT JUL 18 1992 ...THUNDERSTORMS BECOMING MORE NUMEROUS ACROSS SOUTH CENTRAL TEXAS... AT 555 PM...SHOWERS AND THUNDERSTORMS WERE SCATTERED ACROSS MUCH OF CENTRAL AND SOUTHCENTRAL TEXAS...THEN WERE LESS NUMEROUS TO THE WEST AND SOUTHWEST OF AUSTIN. STRONG THUNDERSTORMS WERE NOTED NORTH OF LULING OVER TOWARDS LAGRANGE...THESE COULD EFFECT PARTS OF TRAVIS AND BASTROP COUNTY NEAR 7 PM WITH BRIEF HEAVY RAINS AND GUSTY WINDS...OTHER STRONG THUNDERRSTORMS WERE LOCATED NEAR BURNET...NORTH OF LAMPASAS AND NEAR COLLEGE STATION. MOVEMENT WAS TOWARDS THE NORTH AT 10 TO 15 MPH. THE STRONGER THUNDERSTORMS MAYf PRODUCE BRIEF HEAVY RAINFALL AND DANGEROUS LIGHTNING. PERSONS ON AREA LAKES SHOULD PREPARE TO MOVE ASHORE IF THUNDERSTORMS APPROACH...AND MOTORISTS SHOULD SLOW DOWN IF POOR VISIBILITIES ARE ENCOUNTERED. PJL
Special weather statement, Jul 18, 6:06 PM CDT, 2 hours 42 minutes before
TXZ030-034>037-190000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 6 PM CDT SAT JUL 18 1992 ...THUNDERSTORMS BECOMING MORE NUMEROUS ACROSS SOUTH CENTRAL TEXAS... AT 555 PM...SHOWERS AND THUNDERSTORMS WERE SCATTERED ACROSS MUCH OF CENTRAL AND SOUTHCENTRAL TEXAS...THEY WERE LESS NUMEROUS TO THE WEST AND SOUTHWEST OF AUSTIN. STRONG THUNDERSTORMS WERE NOTED NORTH OF LULING OVER TOWARDS LAGRANGE...THESE COULD EFFECT PARTS OF TRAVIS AND BASTROP COUNTY NEAR 7 PM WITH BRIEF HEAVY RAINS AND GUSTY WINDS...OTHER STRONG THUNDERRSTORMS WERE LOCATED NEAR BURNET...NORTH OF LAMPASAS AND NEAR COLLEGE STATION. MOVEMENT WAS TOWARDS THE NORTH AT 10 TO 15 MPH. THE STRONGER THUNDERSTORMSh MAY PRODUCE BRIEF HEAVY RAINFALL AND DANGEROUS LIGHTNING. PERSONS ON AREA LAKES SHOULD PREPARE TO MOVE ASHORE IF THUNDERSTORMS APPROACH...AND MOTORISTS SHOULD SLOW DOWN IF POOR VISIBILITIES ARE ENCOUNTERED. PJL
Special weather statement, Jul 18, 8:08 PM CDT, 40 minutes before
TXZ038-039-190300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 800 PM CDT SAT JUL 18 1992 AT 755 PM CDT...HONDO RADAR REPORTED A THUNDERSTORM NEAR THE FRIO- MEDINA-ZAVALA-UVALDE COUNTY LINE. MOVEMENT WAS TOWARD THE NORTH AT 15 MPH. THIS STORM LIKELY CONTAINS LOCALLY HEAVY RAIN AND FREQUENT LIGHTNING. DUE TO ITS INTENSITY...GUSTY SURFACE WINDS AND HAIL ALSO MAY ACCOMPANY THIS STORM FOR ANOTHER HOUR OR TWO. SCATTERED THUNDERSTORMS ARE FORECAST TO PREVAIL THE REST OF THE EVENING THROUGHOUT MUCH OF SOUTH CENTRAL TEXAS...THEN BEGIN TO DISSIPATE BY MORNING. HOWEVER...SOME OF THE STORMS COULD CAUSE ADVERSE WEATHER CONDITIONS FOR A BRIEF TIME...SO RESIDENTS SHOULD REMvAIN ALERT AND LISTEN FOR LATER BULLETINS AS CONDITIONS WARRANT.
Special weather statement, Jul 18, 8:18 PM CDT, 30 minutes before
TXZ030-034>037-190300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 815 PM CDT SAT JUL 18 1992 ...STRONG THUNDERSTORMS NORTHWEST OF AUSTIN... AT 810 PM...SHOWERS AND THUNDERSTORMS WERE SCATTERED ACROSS A LARGE AREA OF CENTRAL AND SOUTH CENTRAL TEXAS. STRONG THUNDERSTORMS WERE LOCATED FROM 20 MILES NORTHWEST OF AUSTIN WEST OF LAKE TRAVIS TO NEAR LIBERTY HILL. OTHER STRONG THUNDERSTORMS WERE LOCATED NORTH OF JARRELL AND BRIGGS AND ALSO NORTH OF BLANCO AND WEST OF ROUND MOUNTAIN AND TO THE SOUTHWEST OF SAN ANTONIO. THESE STRONG THUNDERSTORMS LIKELY CONTAIN LOCALLY HEAVY RAIN AND DANGEROUS LIGHTNING ALONG WITH GUSTY WINDS. MOVEMENT WAS TOWARDS THE NORTHEAST AT 15 MPH. PERS ONS ON AREA LAKES SHOULD PREPARE TO MOVE ASHORE IF THUNDERSTORMS APPROACH...AND MOTORISTS SHOULD SLOW DOWN IF POOR VISIBILITIES ARE ENCOUNTERED. PJL
Special weather statement, Jul 18, 8:20 PM CDT, 28 minutes before
TXZ038-039-190300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 815 PM CDT SAT JUL 18 1992 AT 815 PM CDT...HONDO RADAR REPORTED THUNDERSTORMS IN SOUTHERN UVALDE AND SOUTHERN MEDINA COUNTIES. MOVEMENT WAS TOWARD THE NORTH AT 15 MPH. THESE STORMS LIKELY CONTAIN LOCALLY HEAVY RAIN AND FREQUENT LIGHTNING. DUE TO THEIR INTENSITY...GUSTY SURFACE WINDS AND HAIL ALSO MAY ACCOMPANY THESE STORMS FOR ANOTHER HOUR OR TWO. PERSONS IN EASTERN UVALDE AND WESTERN MEDINA COUNTIES SHOULD BE ALERT AND WATCH FOR THE APPROACH OF THESE STORMS. RESIDENTS IN AND AROUND HONDO...D'HANIS AND SABINAL WILL BE MOST AFFECTED. IF THE STORMS HOLD TOGETHER INTO THE EVENING...THEY MAY MOVE INTO BANDERA AND REAL COUNTIES IN A FEW HOURS. ADDITIONAL STATEMENTS WILL BE ISSUED AS CONDITIONS WARRANT...SO PLEASE STAY TUNED.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 19, 4:00 AM CDT | Flash Flood Warning | EWX | Val Verde | 6 hr |
| Jul 19, 10:10 AM CDT | Flash Flood Warning | EWX | Val Verde | 6 hr |
| Jul 19, 4:10 PM CDT | Flash Flood Warning | EWX | Calhoun | 3 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 1992Every severe thunderstorm warning in 1992
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.