Alert archive / Texas / Flash Flood Warnings in 1997
Flash Flood Warning 223, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 7, 1997, 6:42 PM CDT for Bexar County, Texas. It was in force for 63 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
- Oct 7, 1997, 6:42 PM CDT (23:42 UTC)
- Expired
- Oct 7, 1997, 7:45 PM CDT
- In force
- 63 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Bexar County, TX
The radar
The Austin/San Antonio radar (KEWX), 55 km from the middle of the area, began a volume at 23:42 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
Corpus Christi, TX (KCRP), launched 12:00Z, 11.7 hours before the alert went out and 223 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
- 2200 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 591 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- 83 m²/s²
- 0-3 km storm-relative helicity
- 103 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 KSAT 072342 FFWSAT TXC029-080045- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 642 PM CDT TUE OCT 7 1997 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 745 PM CDT FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...SOUTHWESTERN BEXAR COUNTY AT 635 PM THUNDERSTORMS WITH VERY HEAVY RAINFALL WERE INDICATED IN SOUTHWEST BEXAR COUNTY BETWEEN LYTLE AND VON ORMY NORTH TO HIGHWAY 90 ALONG AND WEST OF 1604. OVER 3 INCHES OF RAINFALL HAS ESTIMATED BY NATIONAL WEATHER SERVICE DOPPLER RADAR IN THIS AREA. THE STORMS HAVE MOVED VERY LITTLE. A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...OR LOW SPOTS IF WATER COVERS THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT TO ESCAPE RISING WATER DURING THREATENING RAINS.
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, Oct 7, 5:35 PM CDT, 1 hour 7 minutes before
TXZ171>173-183>194-202>209-217>225-228-081100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 535 PM CDT TUE OCT 7 1997 NO HAZARDOUS WEATHER IS EXPECTED TONIGHT OR WEDNESDAY FOR SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. DEEP TROPICAL MOISTURE CONTINUES ACROSS SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. UPPER LEVEL DISTURBANCES MOVING ACROSS THE AREA THIS EVENING AND WEDNESDAY AFTERNOON WILL PRODUCE CHANCES OF SHOWERS AND THUNDERSTORMS. THE GREATEST CHANCES OF PRECIPITATION ARE GENERALLY ALONG AND EAST OF A GEORGETOWN TO SAN ANTONIO TO CAMPBELLTON LINE WHERE MAINLY SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED. WEST OF THIS LINE THE AREAL COVERAGE WILL DECREASE TO ISOLATED ALONG THE RIO GRANDE. CONDITIONS ACROSS PORTIONS OF CENTRAL TEXAS REMAIN FAVORABLE FOR LOCALLY HEAVY RAINFALL THIS EVENING. THE GREATEST THREAT FOR HEAVY RAINFALL WILL BE IN THE AUSTIN METROPOLITAN AREA AND EAST TO THE LA GRANGE AND SOMERVILLE LAKE AREAS. LOCALIZED FLOODING OF LOW WATER CROSSINGS...STREAMS...HIGHWAY UNDERPASSES AND OTHER KNOWN FLOOD PRONE AREAS IS POSSIBLE THIS EVENING IN THIS AREA. FOR THIS EVENING...RAINFALL AMOUNTS WILL AVERAGE 1/4 TO 1/2 INCH WITH ISOLATED TOTALS OF 1 TO 2 INCHES POSSIBLE EAST OF A SAN ANTONIO TO LLANO LINE. OTHERWISE...WEST OF A SAN ANTONIO TO LLANO LINE FOR THIS EVENING AND ACROSS THE AREA FOR THE REMAINDER OF TONIGHT AND WEDNESDAY...RAINFALL AMOUNTS WILL AVERAGE 1/4 INCH OR LESS WITH ISOLATED TOTALS NEAR AN INCH. STAY TUNED TO NOAA WEATHER RADIO...TV...CABLE TV AND LOCAL RADIO FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: FOR SOUTHWEST TEXAS...FROM MIDLAND...LBBSPSMAF FOR THE CONCHO VALLEY...FROM SAN ANGELO...LBBSPSSJT FOR NORTH TEXAS...FROM FORT WORTH...FTWSPSFTW FOR SOUTHEAST TEXAS...FROM HOUSTON/GALVESTON...SATSPSHOU FOR COASTAL BEND/RIO GRANDE PLAINS...FROM CORPUS CHRISTI...SATSPSCRP. 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 UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED HAZARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP.
Special weather statement, Oct 7, 5:37 PM CDT, 1 hour 5 minutes before
TXZ171>173-183>194-202>209-217>225-228-081100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 535 PM CDT TUE OCT 7 1997 NO HAZARDOUS WEATHER IS EXPECTED TONIGHT OR WEDNESDAY FOR SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. DEEP TROPICAL MOISTURE CONTINUES ACROSS SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. UPPER LEVEL DISTURBANCES MOVING ACROSS THE AREA THIS EVENING AND WEDNESDAY AFTERNOON WILL PRODUCE CHANCES OF SHOWERS AND THUNDERSTORMS. THE GREATEST CHANCES OF PRECIPITATION ARE GENERALLY ALONG AND EAST OF A GEORGETOWN TO SAN ANTONIO TO CAMPBELLTON LINE WHERE MAINLY SCATTERED SHOWERS AND THUNDERSTORMS ARE EXPECTED. WEST OF THIS LINE THE AREAL COVERAGE WILL DECREASE TO ISOLATED ALONG THE RIO GRANDE. CONDITIONS ACROSS PORTIONS OF CENTRAL TEXAS REMAIN FAVORABLE FOR LOCALLY HEAVY RAINFALL THIS EVENING. THE GREATEST THREAT FOR HEAVY RAINFALL WILL BE IN THE AUSTIN METROPOLITAN AREA AND EAST TO THE LA GRANGE AND SOMERVILLE LAKE AREAS. LOCALIZED FLOODING OF LOW WATER CROSSINGS...STREAMS...HIGHWAY UNDERPASSES AND OTHER KNOWN FLOOD PRONE AREAS IS POSSIBLE THIS EVENING IN THIS AREA. FOR THIS EVENING...RAINFALL AMOUNTS WILL AVERAGE 1/4 TO 1/2 INCH WITH ISOLATED TOTALS OF 1 TO 2 INCHES POSSIBLE EAST OF A SAN ANTONIO TO LLANO LINE. OTHERWISE...WEST OF A SAN ANTONIO TO LLANO LINE FOR THIS EVENING AND ACROSS THE AREA FOR THE REMAINDER OF TONIGHT AND WEDNESDAY...RAINFALL AMOUNTS WILL AVERAGE 1/4 INCH OR LESS WITH ISOLATED TOTALS NEAR AN INCH. STAY TUNED TO NOAA WEATHER RADIO...TV...CABLE TV AND LOCAL RADIO FOR ADDITIONAL STATEMENTS AND POSSIBLE WARNINGS. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: FOR SOUTHWEST TEXAS...FROM MIDLAND...LBBSPSMAF FOR THE CONCHO VALLEY...FROM SAN ANGELO...LBBSPSSJT FOR NORTH TEXAS...FROM FORT WORTH...FTWSPSFTW FOR SOUTHEAST TEXAS...FROM HOUSTON/GALVESTON...SATSPSHOU FOR COASTAL BEND/RIO GRANDE PLAINS...FROM CORPUS CHRISTI...SATSPSCRP. 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 UNEXPECTED HAZARDOUS WEATHER DEVELOPS OR IF EXPECTED HAZ4ARDOUS WEATHER NO LONGER IS FORECAST TO DEVELOP.
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.