Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 24, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Feb 21, 1998, 5:47 PM CST for Caldwell County, Travis 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
- Feb 21, 1998, 5:47 PM CST (23:47 UTC)
- Expired
- Feb 21, 1998, 7:45 PM CST
- In force
- 118 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Caldwell County, TX, Travis County, TX
The radar
The Austin/San Antonio radar (KEWX), 53 km from the middle of the area, began a volume at 23:50 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
Corpus Christi, TX (KCRP), launched 12:00Z, 11.8 hours before the alert went out and 264 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 857 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 255 m²/s²
- 0-3 km storm-relative helicity
- 424 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 212348 FFWSAT TXC055-453-220145- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 547 PM CST SAT FEB 21 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 745 PM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL TEXAS ...CALDWELL COUNTY...TRAVIS COUNTY AT 545 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A LINE OF NUMEROUS THUNDERSTORMS PRODUCING VERY HEAVY RAIN AND FLOODING FROM BURNET SOUTH TO SAN MARCOS... SEGUIN AND STOCKDALE. ONE INCH OF RAIN FELL IN LESS THAN AN HOUR IN SAN MARCOS AND 1 TO 2 INCHES OF RAIN IS LIKELY AS THESE STORMS MOVE THROUGH TRAVIS AND CALDWELL COUNTY. MOVEMENT WAS EAST AT 20 MPH. 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 ARE AS. 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, Feb 21, 12:00 PM CST, 5 hours 47 minutes before
TXZ171>173-183>194-202>209-217>225-228-220000- HAZARDOUS WEATHER OUTLOOK...UPDATE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1200 PM CST SAT FEB 21 1998 ...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF SOUTH TEXAS THIS AFTERNOON AND TONIGHT... A VIGOROUS AND DANGEROUS STORM SYSTEM IS CURRENTLY LOCATED OVER WEST TEXAS...MOVING EASTWARD INTO THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS. THUNDERSTORMS ARE FORECASTED FOR THIS AFTERNOON AND TONIGHT OVER ALL OF SOUTH TEXAS WITH A HIGH RISK OF SEVERE THUNDERSTORMS ALONG WITH LARGE HAIL...DAMAGING WINDS...FREQUENT DEADLY LIGHTNING... LOCALLY HEAVY RAINFALL...AND POSSIBLE FLASH FLOODING. THE THREAT OF TORNADIC DEVELOPMENT ALSO EXISTS. A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF SOUTH TEXAS...SOUTH OF A LINE THAT RUNS FROM DEL RIO TO JUNCTION TO LLANO TO COLLEGE STATION TO LUFKIN TO NEWTON. THIS WATCH MEANS THAT FLOODING IS POSSIBLE WITHIN THE WATCH AREA DUE TO THE HEAVY RAINS THAT WILL OCCUR WITH THE THUNDERSTORMS. HEAVY RAINS WILL CAUSE THE RAPID RISE OF STREAMS AND RIVERS...FLOODING OF LOW LYING AREA...ROADS...AND LOW WATER CROSSINGS. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION. RESIDENTS AND EMERGENCY MANAGEMENT OFFICIALS IN SOUTH TEXAS ARE URGED TO MONITOR FORECASTS AND ADVISORIES ISSUED BY NATIONAL WEATHER SERVICE OFFICES. THESE BULLETINS WILL BE BROADCAST OVER LOCAL RADIO AND TV STATIONS, CABLE TV OUTLETS AND NOAA WEATHER RADIO STATIONS. LISTEN FOR THESE BROADCASTS...AND HEED THEIR ADVICE. 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 FORECASTS, 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. ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT: www.srh.noaa.gov/ewx, OR TUNE TO THE CLOSEST NOAA WEATHER RADIO STATION OPERATING ON A FREQUENCY BETWEEN 162.400 MHz AND 162.550 MHz.
Special weather statement, Feb 21, 12:00 PM CST, 5 hours 47 minutes before
TXZ171>173-183>194-202>209-217>225-228-220000- HAZARDOUS WEATHER OUTLOOK...UPDATE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1200 PM CST SAT FEB 21 1998 ...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF SOUTH TEXAS THIS AFTERNOON AND TONIGHT... A VIGOROUS AND DANGEROUS STORM SYSTEM IS CURRENTLY LOCATED OVER WEST TEXAS...MOVING EASTWARD INTO THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS. THUNDERSTORMS ARE FORECASTED FOR THIS AFTERNOON AND TONIGHT OVER ALL OF SOUTH TEXAS WITH A HIGH RISK OF SEVERE THUNDERSTORMS ALONG WITH LARGE HAIL...DAMAGING WINDS...FREQUENT DEADLY LIGHTNING... LOCALLY HEAVY RAINFALL...AND POSSIBLE FLASH FLOODING. THE THREAT OF TORNADIC DEVELOPMENT ALSO EXISTS. A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF SOUTH TEXAS...SOUTH OF A LINE THAT RUNS FROM DEL RIO TO JUNCTION TO LLANO TO COLLEGE STATION TO LUFKIN TO NEWTON. THIS WATCH MEANS THAT FLOODING IS POSSIBLE WITHIN THE WATCH AREA DUE TO THE HEAVY RAINS THAT WILL OCCUR WITH THE THUNDERSTORMS. HEAVY RAINS WILL CAUSE THE RAPID RISE OF STREAMS AND RIVERS...FLOODING OF LOW LYING AREA...ROADS...AND LOW WATER CROSSINGS. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION. RESIDENTS AND EMERGENCY MANAGEMENT OFFICIALS IN SOUTH TEXAS ARE URGED TO MONITOR FORECASTS AND ADVISORIES ISSUED BY NATIONAL WEATHER SERVICE OFFICES. THESE BULLETINS WILL BE BROADCAST OVER LOCAL RADIO AND TV STATIONS, CABLE TV OUTLETS AND NOAA WEATHER RADIO STATIONS. LISTEN FOR THESE BROADCASTS...AND HEED THEIR ADVICE. 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 FORECASTS, 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. ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT: www.srh.noaa.gov/ewx, OR TUNE TO THE CLOSEST NOAA WEATHER RADIO STATION OPERATING ON A FREQUENCY BETWEEN 162.400 MHz AND 162.550 MHz.
Special weather statement, Feb 21, 3:00 PM CST, 2 hours 47 minutes before
TXZ171>173-183>194-202>209-217>225-228-220115- HAZARDOUS WEATHER OUTLOOK...UPDATE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 300 PM CST SAT FEB 21 1998 ...A TORNADO WATCH IS IN EFFECT UNTIL 9 PM THIS EVENING... ...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF SOUTH TEXAS THIS AFTERNOON AND TONIGHT... A TORNADO WATCH HAS BEEN ISSUED FOR SOUTH CENTRAL TEXAS...THE TEXAS COASTAL BEND...THE RIO GRANDE PLAINS...AND PORTIONS OF DEEP SOUTH TEXAS. IN THE SOUTH CENTRAL TEXAS PORTION...THIS WATCH INCLUDES THE COUNTIES OF ATASCOSA...BANDERA...BEXAR...COMAL...DEWITT...DIMMIT... EDWARDS...FRIO...GONZALES...GUADALUPE...KARNES...KENDALL...KERR... KINNEY...LAVACA...MAVERICK...MEDINA...REAL...UVALDE...VAL VERDE... WILSON...AND ZAVALA. A VIGOROUS AND DANGEROUS STORM SYSTEM IS CURRENTLY LOCATED OVER WEST TEXAS...MOVING EASTWARD INTO THE SOUTH CENTRAL TEXAS. THUNDERSTORMS ARE FORECASTED FOR THIS AFTERNOON AND TONIGHT OVER ALL OF SOUTH TEXAS WITH A HIGH RISK OF SEVERE THUNDERSTORMS ALONG WITH LARGE HAIL... DAMAGING WINDS...FREQUENT DEADLY LIGHTNING...LOCALLY HEAVY RAINFALL AND POSSIBLE FLASH FLOODING. THE THREAT OF TORNADIC DEVELOPMENT ALSO EXISTS. A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF SOUTH TEXAS...SOUTH OF A LINE THAT RUNS FROM DEL RIO TO JUNCTION TO LLANO TO COLLEGE STATION TO LUFKIN TO NEWTON. THIS WATCH MEANS THAT FLOODING IS POSSIBLE WITHIN THE WATCH AREA DUE TO THE HEAVY RAINS THAT WILL OCCUR WITH THE THUNDERSTORMS. HEAVY RAINS WILL CAUSE THE RAPID RISE OF STREAMS AND RIVERS...FLOODING OF LOW LYING AREA...ROADS...AND LOW WATER CROSSINGS. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION. RESIDENTS AND EMERGENCY MANAGEMENT OFFICIALS IN SOUTH TEXAS ARE URGED TO MONITOR FORECASTS AND ADVISORIES ISSUED BY NATIONAL WEATHER SERVICE OFFICES. THESE BULLETINS WILL BE BROADCAST OVER LOCAL RADIO AND TV STATIONS CABLE TV OUTLETS AND NOAA WEATHER RADIO STATIONS. LISTEN FOR THESE BROADCASTS...AND HEED THEIR ADVICE. 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 FORECASTS 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. ADDITIONAL WEATHER INFORMATION IS AVAILABLE ON THE NATIONAL WEATHER SERVICE CENTRAL AND SOUTH CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT: www.srh.noaa.gov/ewx OR TUNE TO THE CLOSEST NOAA WEATHER RADIO STATION OPERATING ON A FREQUENCY BETWEEN 162.400 MHz AND 162.550 MHz.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 2:59 PM CST | Severe Thunderstorm Warning | EWX | Frio | 31 min |
| Feb 21, 3:04 PM CST | Severe Thunderstorm Warning | EWX | Frio | 56 min |
| Feb 21, 3:40 PM CST | Flash Flood Warning | EWX | Frio, Medina | 3 hr |
| Feb 21, 3:55 PM CST | Flash Flood Warning | EWX | Atascosa, Bexar | 3 hr |
| Feb 21, 3:55 PM CST | Flash Flood Warning | EWX | Kendall | 3 hr |
| Feb 21, 4:19 PM CST | Severe Thunderstorm Warning | EWX | Atascosa, Bexar | 56 min |
| Feb 21, 4:37 PM CST | Flash Flood Warning | EWX | Guadalupe, Wilson | 2 hr |
| Feb 21, 4:37 PM CST | Severe Thunderstorm Warning | EWX | Guadalupe, Wilson | 2 hr |
| Feb 21, 4:39 PM CST | Flash Flood Warning | EWX | Comal | 3 hr |
| Feb 21, 5:08 PM CST | Severe Thunderstorm Warning | EWX | Comal | 67 min |
| Feb 21, 5:28 PM CST | Flash Flood Warning | EWX | Gonzales | 2 hr |
| Feb 21, 5:28 PM CST | Severe Thunderstorm Warning | EWX | Gonzales | 2 hr |
| Feb 21, 5:33 PM CST | Flash Flood Warning | EWX | Hays | 57 min |
| Feb 21, 5:33 PM CST | Severe Thunderstorm Warning | EWX | Hays | 57 min |
Nearby
Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998
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.