Alert archive / Texas / Flash Flood Warnings in 1997
Flash Flood Warning 74, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at May 27, 1997, 4:32 PM CDT for Travis County, Williamson County, Texas. It was in force for 118 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
- May 27, 1997, 4:32 PM CDT (21:32 UTC)
- Expired
- May 27, 1997, 6:30 PM CDT
- In force
- 118 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Travis County, TX, Williamson County, TX
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 9.5 hours before the alert went out and 263 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
- 4281 J/kg
- Mixed-layer CIN
- -43 J/kg
- Mixed-layer LCL
- 590 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- 15 m²/s²
- 0-3 km storm-relative helicity
- 58 m²/s²
- Significant tornado parameter
- 0.7
- Supercell composite
- 3.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 272132 FFWSAT TXC453-491-272330- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 432 PM CDT TUE MAY 27 1997 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 630 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL TEXAS ...TRAVIS COUNTY...WILLIAMSON COUNTY AT 430 PM...RADAR INDICATED RAINFALL RATES OF 2 TO 3 INCHES PER HOUR WERE OCCURRING ALONG INTERSTATE 35 BETWEEN JARRELL... GEORGETOWN... AND ROUND ROCK. THIS RAIN WAS ASSOCIATED WITH A SEVERE THUNDERSTORM MOVING ALONG I-35. NEAR 4 INCHES OF RAIN HAS ALREADY FALLEN IN GEORGETOWN. THE HEAVIEST RAIN IS MOVING TOWARD THE CITY OF AUSTIN AND WILL LIKELY PRODUCING FLOODING. STORM MOTION WAS SOUTH AT 15 TO 20 MPH. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS AND OTHER PEOPLE IN RECREATION AREAS ALONG CREEKS...STREAMS...AND RIVERS IN THE WARNING AREA SHOULD MOVE TO HIGH GROUND IMMEDIATELY. FLOOD PRONE URBAN AREAS FILL WITH WATER QUICKLY. CLOGGED STORM DRAINS MAY CAUSE OTHER AREAS TO FLOOD. DO NOT DRIVE THROUGH FLOOD WATERS AND STAY AWAY FROM STORM DRAINS. AVOID ALREADY FLOODED AREAS. TRAVELERS SHOULD NOT ATTEMPT TO CROSS FLOODED ROADS. IF YOUR VEHICLE STALLS...LEAVE IT AND MOVE IMMEDIATELY TO HIGHER GROUND IF YOU CAN DO SO SAFELY.
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, May 27, 11:14 AM CDT, 5 hours 18 minutes before
TXZ171>173-183>194-202>209-217>225-228-272300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1115 AM CDT TUE MAY 27 1997 ...SEVERE THUNDERSTORM AND HEAVY RAIN EVENT DEVELOPING ACROSS SOUTH TEXAS AND THE HILL COUNTRY THIS AFTERNOON AND TONIGHT... THE NATIONAL WEATHER SERVICE IS CLOSELY MONITORING A WEAK COLD FRONT MOVING THROUGH SOUTH TEXAS. THIS COLD FRONT IS EXPECTED TO BECOME STATIONARY LATE THIS AFTERNOON AND INTERACT WITH AN UPPER LEVEL DISTURBANCE IGNITING A ROUND OF SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAIN. THE ATMOSPHERE IS VERY MOIST AND UNSTABLE ACROSS SOUTH TEXAS. CONDITIONS ARE BECOMING INCREASINGLY FAVORABLE FOR THE DEVELOPMENT OF SCATTERED SEVERE THUNDERSTORMS WITH LARGE HAIL... DAMAGING WINDS AND VERY HEAVY RAINFALL. THE MOST SEVERE STORMS MAY PRODUCE ISOLATED TORNADOES. THIS ACTIVITY SHOULD DEVELOP LATE THIS AFTERNOON AND DECREASE IN SEVERITY LATE THIS EVENING. THIS SYSTEM WILL EVOLVE INTO A HEAVY RAIN EVENT OVER PORTIONS OF SOUTH CENTRAL TEXAS... THE HILL COUNTRY AND SOUTHEAST TEXAS TONIGHT WITH ISOLATED SEVERE THUNDERSTORMS. A GENERAL 1/2 TO 1 INCH RAINFALL IS POSSIBLE WITH ISOLATED TOTALS NEAR 3 INCHES OR MORE WHERE THUNDERSTORMS MERGE OR REDEVELOP ACROSS A PARTICULAR LOCATION. A FLASH FLOOD WATCH MAY BE REQUIRED TONIGHT ACROSS PORTIONS OF SOUTH TEXAS. THE HAZARDOUS WEATHER OUTLOOK WILL NORMALLY BE UPDATED BY MEANS OF THE ZONE FORECAST...SHORT TERM FORECAST...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNFORECAST HAZARDOUS WEATHER DEVELOPS OR IF FORECAST HAZARDOUS WEATHER IS NO LONGER EXPECTED.
Special weather statement, May 27, 11:15 AM CDT, 5 hours 17 minutes before
TXZ171>173-183>194-202>209-217>225-228-272300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1115 AM CDT TUE MAY 27 1997 ...SEVERE THUNDERSTORM AND HEAVY RAIN EVENT DEVELOPING ACROSS SOUTH TEXAS AND THE HILL COUNTRY THIS AFTERNOON AND TONIGHT... THE NATIONAL WEATHER SERVICE IS CLOSELY MONITORING A WEAK COLD FRONT MOVING THROUGH SOUTH TEXAS. THIS COLD FRONT IS EXPECTED TO BECOME STATIONARY LATE THIS AFTERNOON AND INTERACT WITH AN UPPER LEVEL DISTURBANCE IGNITING A ROUND OF SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAIN. THE ATMOSPHERE IS VERY MOIST AND UNSTABLE ACROSS SOUTH TEXAS. CONDITIONS ARE BECOMING INCREASINGLY FAVORABLE FOR THE DEVELOPMENT OF SCATTERED SEVERE THUNDERSTORMS WITH LARGE HAIL... DAMAGING WINDS AND VERY HEAVY RAINFALL. THE MOST SEVERE STORMS MAY PRODUCE ISOLATED TORNADOES. THIS ACTIVITY SHOULD DEVELOP LATE THIS AFTERNOON AND DECREASE IN SEVERITY LATE THIS EVENING. THIS SYSTEM WILL EVOLVE INTO A HEAVY RAIN EVENT OVER PORTIONS OF SOUTH CENTRAL TEXAS... THE HILL COUNTRY AND SOUTHEAST TEXAS TONIGHT WITH ISOLATED SEVERE THUNDERSTORMS. A GENERAL 1/2 TO 1 INCH RAINFALL IS POSSIBLE WITH ISOLATED TOTALS NEAR 3 INCHES OR MORE WHERE THUNDERSTORMS MERGE OR REDEVELOP ACROSS A PARTICULAR LOCATION. A FLASH FLOOD WATCH MAY BE REQUIRED TONIGHT ACROSS PORTIONS OF SOUTH TEXAS. THE HAZARDOUS WEATHER OUTLOOK WILL NORMALLY BE UPDATED BY MEANS OF THE ZONE FORECAST...SHORT TERM FORECAST...WATCHES...WARNINGS AND ADVISORIES. THE HAZARDOUS WEATHER OUTLOOK ITSELF WILL BE UPDATED ONLY IF UNFORECAST HAZARDOUS WEATHER DEVELOPS OR IF FORECAST HAZARDOUS WEATHER IS NO LONGER EXPECTED.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 27, 3:30 PM CDT | Tornado Warning | EWX | Williamson | 60 min |
| May 27, 3:34 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 56 min |
| May 27, 3:58 PM CDT | Severe Thunderstorm Warning | EWX | Real | 62 min |
| May 27, 4:09 PM CDT | Tornado Warning | EWX | Travis | 66 min |
| May 27, 4:26 PM CDT | Flash Flood Warning | EWX | Edwards, Real | 2 hr |
| May 27, 4:37 PM CDT | Severe Thunderstorm Warning | EWX | Williamson | 68 min |
| May 27, 4:49 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 56 min |
| May 27, 4:58 PM CDT | Tornado Warning | EWX | Hays | 62 min |
| May 27, 5:19 PM CDT | Severe Thunderstorm Warning | EWX | Travis | 56 min |
| May 27, 5:24 PM CDT | Severe Thunderstorm Warning | EWX | Blanco | 66 min |
| May 27, 5:37 PM CDT | Flash Flood Warning | EWX | Uvalde | 98 min |
| May 27, 5:37 PM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 98 min |
| May 27, 5:52 PM CDT | Tornado Warning | EWX | Kendall | 68 min |
| May 27, 5:58 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Caldwell | 2 hr |
| May 27, 6:01 PM CDT | Severe Thunderstorm Warning | EWX | Hays | 59 min |
| May 27, 6:06 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 69 min |
| May 27, 6:14 PM CDT | Severe Thunderstorm Warning | EWX | Comal | 61 min |
| May 27, 6:24 PM CDT | Tornado Warning | EWX | Uvalde | 36 min |
| May 27, 6:28 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 62 min |
| May 27, 6:29 PM CDT | Severe Thunderstorm Warning | EWX | Guadalupe | 61 min |
| May 27, 6:56 PM CDT | Tornado Warning | EWX | Kendall | 64 min |
| May 27, 6:59 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 91 min |
Nearby
Flash Flood Warnings in Texas, 1997Every flash flood warning in 1997
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.