Alert archive / Texas / Flash Flood Warnings in 1997
Flash Flood Warning 123, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jun 10, 1997, 10:49 AM CDT for Blanco County, Hays County, Travis County, Texas. It was in force for 116 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
- Jun 10, 1997, 10:49 AM CDT (15:49 UTC)
- Expired
- Jun 10, 1997, 12:45 PM CDT
- In force
- 116 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Blanco County, TX, Hays County, TX, Travis County, TX
The radar
The Austin/San Antonio radar (KEWX), 57 km from the middle of the area, began a volume at 15:50 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 3.8 hours before the alert went out and 283 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
- 2706 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 504 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 29 m²/s²
- 0-3 km storm-relative helicity
- 114 m²/s²
- Significant tornado parameter
- 0.8
- Supercell composite
- 4.4
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 101554 FFWSAT TXC031-209-453-101745- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1049 AM CDT TUE JUN 10 1997 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS EXTENDED THE FLASH FLOOD WARNING UNTIL 1245 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL TEXAS ...BLANCO COUNTY...HAYS COUNTY...TRAVIS COUNTY STRONG THUNDERSTORMS CONTINUE TO MOVE ACROSS BLANCO...HAYS AND TRAVIS COUNTIES MOVING TO THE SOUTHEAST AT 15 MPH. LOW WATER CROSSINGS ARE FLOODING AND STREAMS ARE RISING ABOVE THEIR BANKS. RAINFALL RATES ARE ONE INCH AN HOUR. 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. A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT. IT IS IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CANd 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.
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, Jun 10, 4:56 AM CDT, 5 hours 53 minutes before
TXZ171>173-183>194-202>209-217>225-228-110000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 445 AM CDT TUE JUN 10 1997 ...SEVERE THUNDERSTORMS EXPECTED IN SOUTH CENTRAL TEXAS AND HILL COUNTRY TODAY... THUNDERSTORMS...SOME POSSIBLY SEVERE ALONG WITH LOCALLY HEAVY RAIN...ARE EXPECTED ACROSS PORTIONS OF THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS TODAY...ESPECIALLY THIS MORNING AND EARLY AFTERNOON. A LARGE AREA OF THUNDERSTORMS...ASSOCIATED WITH THE LEADING EDGE OF A SOUTHWARD-MOVING COLD FRONT...WILL MOVE INTO THE NORTHERN COUNTIES OF THE HILL COUNTRY AND CENTRAL TEXAS THIS MORNING. THIS AREA OF THUNDERSTORMS HAS HAD A HISTORY OF PRODUCING SEVERE WEATHER EARLIER IN THE MORNING...MAINLY HAIL...DAMAGING WINDS OVER 60 MPH AND FREQUENT LIGHTNING. LOCALLY HEAVY RAINFALL HAS ALSO ACCOMPANIED THE STORMS...CAUSING FLASH FLOODING. AMOUNTS AVERAGING BETWEEN A QUARTER OF AN INCH AND A HALF AN INCH WILL BE COMMON...WITH HIGHER TOTALS BETWEEN 2 AND 4 INCHES POSSIBLE. THE ATMOSPHERE REMAINS QUITE MOIST AND UNSTABLE SO THUNDERSTORM DEVELOPMENT WILL OCCUR TODAY...WITH SLIGHTLY LESS CHANCES FOR TONIGHT. AN UPPER-LEVEL RIDGE BUILDING OVER SOUTH TEXAS SHOULD HELP LESSEN THE CHANCES FOR CONVECTIVE DEVELOPMENT WEDNESDAY AND LATER THIS WEEK. NOTICE TO LAW ENFORCEMENT AGENCIES AND EMERGENCY MANAGEMENT OFFICIALS IN SOUTH CENTRAL TEXAS AND HILL COUNTRY...SEVERE WEATHER WARNINGS MAY BE ISSUED WITHIN A MATTER OF HOURS AND CONTINUE THROUGH THE MORNING. CONTINGENCY PREPAREDNESS PLANS TO ALERT SPOTTERS AND COMMUNITY OFFICIALS IS RECOMMENDED. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECASTS...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 NO LONGER IS EXPECTED.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 10, 8:02 AM CDT | Flash Flood Warning | EWX | Bastrop, Travis, Williamson | 3 hr |
| Jun 10, 8:02 AM CDT | Flash Flood Warning | EWX | Blanco, Hays | 3 hr |
| Jun 10, 10:58 AM CDT | Flash Flood Warning | EWX | Kerr | 3 hr |
| Jun 10, 2:21 PM CDT | Flash Flood Warning | EWX | Lavaca | 2 hr |
| Jun 10, 3:29 PM CDT | Flash Flood Warning | EWX | Kinney, Uvalde | 2 hr |
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; radar from the NEXRAD Level II archive.