Alert archive / Texas / Flash Flood Warnings in 1992
Flash Flood Warning 88, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 21, 1992, 7:30 PM CDT for Travis County, Texas. It was in force for 90 min.
The area
The counties it named.
The facts
- Issued
- Sep 21, 1992, 7:30 PM CDT (00:30 UTC)
- Expired
- Sep 21, 1992, 9:00 PM CDT
- In force
- 90 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Travis County, TX
The nearest sounding before it
Stephenville/Cla, TX (KSEP), launched 00:00Z, 0.5 hours before the alert went out and 212 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
- 58 J/kg
- Mixed-layer CIN
- -60 J/kg
- Mixed-layer LCL
- 2560 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 40 m²/s²
- 0-3 km storm-relative helicity
- 55 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KAUS 220030 FFWAUS TXC453-220200- BULLETIN - EBS ACTIVATION REQUESTED SEVERE THUNDERSTORM AND FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN TX 730 PM CDT MON SEP 21 1992 THE NATIONAL WEATHER SERVICE IN AUSTIN HAS ISSUED A SEVERE THUNDERSTORM AND FLASH FLOOD WARNING EFFECTIVE UNTIL 900 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL TEXAS ...TRAVIS COUNTY AT 726 PM...RADAR SHOWED SEVERE THUNDERSTORMS OVER NORTHERN AND WESTERN TRAVIS COUNTY BEGINNING TO MOVE THROUGH THE IMMEDIATE AUSTIN METROPOLITAN AREA. THESE THUNDERSTORMS WERE MOVING SLOWLY TO THE EAST AND SOUTHEAST. TORRENTIAL RAINS IN EXCESS OF FOUR INCHES HAVE ALREADY BEEN REPORTED PREVIOUSLY WITH THESE STORMS. LOCALIZED FLASH FLOODING IS LIKELY UNTIL 9PM. SMALL STREAMS AND CREEKS WILL BE THE FIRST TO RISE AND MAY DO SO RAPIDLY AND WITHOUT WARNING. STREET FLOODING IS ALREADY OCCURRING OVER PARTS OF THE WARNED AREA AND MOTORISTS SHOULD STOP AND SEEK SAFE SHELTER ON HIGH GROUND. WHEN THUNDERSTORMS ARE OCCURRING...GET INSIDE. DON'T USE TELE- PHONES OR ELECTRICAL APPLIANCES UNLESS ABSOLUTELY NECESSARY UNTIL THE STORM HAS PASSED. MOTORISTS SHOULD BE CAUTIOUS OF FLOODED ROADWAYS AND LOW WATER CROSSINGS.
What forecasters said that day
The local office's own words before this flash flood 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, Sep 21, 3:31 PM CDT, 3 hours 59 minutes before
TXZ030-034>037-212130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 330 PM CDT MON SEP 21 1992 ...THUNDERSTORMS DEVELOPING OVER THE HILL COUNTRY... AT 325 PM...RADAR INDICATED A RAPIDLY DEVELOPING LINE OF THUNDERSTORMS FROM 10 MILES NORTH OF FREDERICKSBURG THROUGH LAKE BUCHANAN TO LAMPASAS. THE MOVEMENT OF THE THUNDERSTORMS HAD NOT YET BEEN DETERMINED. PERSONS THROUGHOUT CENTRAL TEXAS AND THE HILL COUNTRY...ESPECIALLY THOSE XALONG THE UPPER HIGHLAND LAKES SHOULD KEEP AN EYE TO THE SKY AND MONITOR THE LATEST WEATHER INFORMATION. STAY TUNED FOR ADDITIONAL WEATHER INFORMATION ON NOAA WEATHER RADIO. WH
Special weather statement, Sep 21, 4:16 PM CDT, 3 hours 14 minutes before
TXZ030-034>037-212210- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 410 PM CDT MON SEP 21 1992 ...A LINE OF THUNDERSTORMS NOW 35 MILES NORTHWEST OF AUSTIN... AT 4 PM...RADAR SHOWED A LINE OF THUNDERSTORMS FROM NEAR WACO THROUGH BURNET AND LAKE BUCHANAN TO NORTH OF FREDERICKSBURG. THE NORTHERN END OF THAT LINE WAS MOVING TO THE SOUTHEAST AT 25 MPH. THE HIGHEST RAINFALL RATE...NEAR ONE INCH PER HOUR...WAS LOCATED JUST NORTH OF BERTRAM. PERSONS AROUND THE HIGHLAND LAKES EASTWARD TO THE INTERSTATE NEAR GEORGETOWN SHOULD BE PREPARED FOR STRONG GUSTY WINDS AND POSSIBLE HAIL UNTIL AROUND 6 PM. BRIEF HEAVY RAINS MAY BE ACCOMPANIED BY CLOUD TO GROUND LIGHTNING. JVD
Special weather statement, Sep 21, 4:39 PM CDT, 2 hours 51 minutes before
TXZ030-034>037-212230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 435 PM CDT MON SEP 21 1992 ...THUNDERSTORMS 30 MILES NORTHWEST OF AUSTIN... AT 430 PM...RADAR INDICATED A LINE OF THUNDERSTORMS FROM KILLEEN/TEMPLE SOUTHWESTWARD ACROSS WESTERN WILLIAMSON COUNTY AND OVER SOUTHERN BURNET AND LLANO COUNTIES. THE MOST INTENSE STORM WAS NEAR MARBLE FALLS AND BURNET WITH AN ESTIMATED RAINFALL RATE BETWEEN 1 AND 2 INCHES PER HOUR. THE NORTHERN END OF THE LINE WAS MOVING TOWARDS THE SOUTHEAST AT 20 MPH WHILE THE SOUTHERN SHOWED LITTLE MOVEMENT. THESE THUNDERSTORMS MAY AFFECT WESTERN TRAVIS AND WILLIAMSON COUNTY ALONG THE INTERSTATE AROUND 6 PM. BE PREPARED FOR STRONG GUSTY WILNDS AND POSSIBLE HAIL. JVD
Special weather statement, Sep 21, 6:54 PM CDT, 36 minutes before
TXZ035-039-220200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO, TX 655 PM CDT MON SEP 21 1992 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR COMAL COUNTY UNTIL MIDNIGHT... AT 655 PM CDT...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS NORTH AND NORTHWEST OF THE AUSTIN AREA. THIS LINE WAS MOVING SOUTH AND SOUTHEAST AT 15 MILES AN HOUR AND COULD POSE A THREAT TO PERSONS IN COMAL COUNTY LATER THIS EVENING. THE LINE OF STORMS HAS PRODUCED SEVERAL OCCURRENCES OF WIND IN EXCESS OF 60 MILES AN HOUR. SOME ISOLATED DAMAGE HAS RESULTED...INCLUDING SOME BUILDING DAMAGE AND DOWNED TREES. THESE STORMS WERE BEING SPAWNED BY A SURFACE TROUGH OF LOW PRESSURE THAT WAS SEPARATING VERY MOIST AIR TO ITS EAST AND EXTREMELY DRY AIR TO ITS WEST. THE ATMOSPHERE IN THE MOIST AIR WAS VERY UNSTABLE. RESIDENTS OF SOUTH CENTRAL TEXAS...ESPECIALLY IN COMAL COUNTY...CAN EXPECT THESE STORMS TO PERSIST THROUGHOUT THE EVENING HOURS. IN ADDITION TO THE THREAT OF HIGH WIND...LARGE HAIL...FREQUENT LIGHTNING AND VERY HEAVY RAINFALL COULD ACCOMPANY THESE THUNDERSTORMS. THE NATIONAL WEATHER SERVICE WILL MONITOR THIS WEATHER SYSTEM CLOSELY FOR THE NEXT SEVERAL HOURS. ADDITIONAL BULLETINS WILL BE BROADCAST OVER LOCAL RADIO...TELEVISION AND NOAA WEATHER RADIO.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 21, 7:30 PM CDT | Severe Thunderstorm Warning | EWX | Travis | 90 min |
| Sep 21, 7:52 PM CDT | Severe Thunderstorm Warning | EWX | Lee | 53 min |
| Sep 21, 8:18 PM CDT | Severe Thunderstorm Warning | EWX | Burleson | 117 min |
| Sep 21, 8:18 PM CDT | Severe Thunderstorm Warning | EWX | Fayette | 117 min |
| Sep 21, 9:07 PM CDT | Severe Thunderstorm Warning | EWX | Gonzales | 53 min |
| Sep 21, 10:05 PM CDT | Severe Thunderstorm Warning | EWX | Lavaca | 55 min |
| Sep 22, 1:01 AM CDT | Severe Thunderstorm Warning | EWX | Bastrop | 59 min |
| Sep 22, 6:54 PM CDT | Flash Flood Warning | EWX | Webb | 3 hr |
Nearby
Flash Flood Warnings in Texas, 1992Every flash flood 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.