Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 164, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 5, 1998, 10:18 PM CDT for Edwards County, Val Verde County, Texas. It was in force for 6 hr. 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 5, 1998, 10:18 PM CDT (03:18 UTC)
- Expired
- Oct 6, 1998, 4:10 AM CDT
- In force
- 6 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Edwards County, TX, Val Verde County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 3.3 hours before the alert went out and 64 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
- 5197 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 1176 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 90 m²/s²
- 0-3 km storm-relative helicity
- 189 m²/s²
- Significant tornado parameter
- 3.0
- Supercell composite
- 22.7
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 060319 FFWSAT TXC137-465-060910- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1018 PM CDT MON OCT 5 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... VAL VERDE COUNTY IN SOUTH CENTRAL TEXAS EDWARDS COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 410 AM CDT * FLASH FLOODING EXPECTED ALONG THE DRY DEVILS RIVER AND THE SOUTH FORK OF THE LLANO RIVER AND ESPECIALLY ALONG SMALL CREEKS AND TRIBUTARIES OF THESE RIVERS. A LINE OF STRONG THUNDERSTORMS ASSOCIATED WITH A COLD FRONT HAS PRODUCED 2 TO 3 INCHES OF RAIN OVER EAST CENTRAL VAL VERDE COUNTY AND WEST CENTRAL EDWARDS COUNTY AND 2 INCHES OVER SOUTHWESTERN VAL VERDE COUNTY. ADDITIONAL RAINS EXPECTED THE NEXT FEW HOURS WILL AGGRAVATE THE FLOODING PROBLEMS. IF YOU ARE IN THESE AREAS... MOVE TO HIGHER GROUND. DO NOT DRIVE THROUGH WATER COVERING THE ROAD. BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED... ACT QUICKLY. MOVE UP TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. IT IS VERY DIFFICULT AT NIGHT TO TELLj HOW MUCH WATER IS ON ROADS. MOTORISTS SHOULD NOT DRIVE THROUGH WATER OF UNKNOWN DEPTH.
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 5, 5:15 PM CDT, 5 hours 3 minutes before
TXZ171>173-183>194-202>209-217>225-228-061200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 515 PM CDT MON OCT 5 1998 THUNDERSTORMS...SOME POSSIBLY SEVERE AND PRODUCING LOCALLY HEAVY RAINFALL...MAY OCCUR ACROSS PORTIONS OF THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS TONIGHT AND TUESDAY. IN FACT...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM CDT FOR A PORTION OF THE TEXAS HILL COUNTRY AND EDWARDS PLATEAU. THE DEVELOPMENT OF THESE THUNDERSTORMS IS IN RESPONSE TO A COLD FRONT APPROACHING FROM THE NORTH COLLIDING WITH WARM MOIST AIR FROM THE GULF OF MEXICO. BESIDES THE POTENTIAL FOR FREQUENT DEADLY LIGHTNING...HAIL AND GUSTY DAMAGING WINDS...THERE EXISTS THE POSSIBILITY FOR LOCALLY HEAVY RAINFALL WHICH COULD CAUSE FLASH FLOODING. TOTALS BETWEEN A HALF AN INCH AND AN INCH WILL BE THE AVERAGE...WITH ISOLATED AMOUNTS BETWEEN 1 AND 2 INCHES OR MORE POSSIBLE IN SOME OF THE HEAVIER STORMS. 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. 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. TIMELY DELIVERY OF DATA AND PRODUCTS FROM THIS SERVER THROUGH THE INTERNET IS NOT GUARANTEED... UNLIKE DATA AND PRODUCTS DELIVERED FROM THE OFFICIAL NATIONAL WEATHER SERVICE SOURCES. THE OFFICIAL SOURCE OF NATIONAL WEATHER SERVICE DATA AND PRODUCTS IS THE NOAA WEATHER RADIO...NOAA WEATHER WIRE...FAMILY OF SERVICES AND EMWIN. THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO... OPERATES ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: SOUTHWEST TEXAS FROM MIDLAND LBBSPSMAF...WWUS35 KMAF CONCHO VALLEY FROM SAN ANGELO LBBSPSSJT...WWUS35 KSJT NORTH TEXAS FROM FORT WORTH FTWSPSFTW...WWUS35 KFTW SOUTHEAST TEXAS FROM HOUSTON/GALV<ESTON SATSPSHOU...WWUS35 KHOU COASTAL BEND/ FROM CORPUS CHRISTI SATSPSCRP...WWUS35 KCRP RIO GRANDE PLAINS
Special weather statement, Oct 5, 5:15 PM CDT, 5 hours 3 minutes before
TXZ171>173-183>194-202>209-217>225-228-061200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 515 PM CDT MON OCT 5 1998 THUNDERSTORMS...SOME POSSIBLY SEVERE AND PRODUCING LOCALLY HEAVY RAINFALL...MAY OCCUR ACROSS PORTIONS OF THE TEXAS HILL COUNTRY AND SOUTH CENTRAL TEXAS TONIGHT AND TUESDAY. IN FACT...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 9 PM CDT FOR A PORTION OF THE TEXAS HILL COUNTRY AND EDWARDS PLATEAU. THE DEVELOPMENT OF THESE THUNDERSTORMS IS IN RESPONSE TO A COLD FRONT APPROACHING FROM THE NORTH COLLIDING WITH WARM MOIST AIR FROM THE GULF OF MEXICO. BESIDES THE POTENTIAL FOR FREQUENT DEADLY LIGHTNING...HAIL AND GUSTY DAMAGING WINDS...THERE EXISTS THE POSSIBILITY FOR LOCALLY HEAVY RAINFALL WHICH COULD CAUSE FLASH FLOODING. TOTALS BETWEEN A HALF AN INCH AND AN INCH WILL BE THE AVERAGE...WITH ISOLATED AMOUNTS BETWEEN 1 AND 2 INCHES OR MORE POSSIBLE IN SOME OF THE HEAVIER STORMS. 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. 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. TIMELY DELIVERY OF DATA AND PRODUCTS FROM THIS SERVER THROUGH THE INTERNET IS NOT GUARANTEED... UNLIKE DATA AND PRODUCTS DELIVERED FROM THE OFFICIAL NATIONAL WEATHER SERVICE SOURCES. THE OFFICIAL SOURCE OF NATIONAL WEATHER SERVICE DATA AND PRODUCTS IS THE NOAA WEATHER RADIO...NOAA WEATHER WIRE...FAMILY OF SERVICES AND EMWIN. THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO... OPERATES ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ. NEARBY HAZARDOUS WEATHER OUTLOOKS INCLUDE: SOUTHWEST TEXAS FROM MIDLAND LBBSPSMAF...WWUS35 KMAF CONCHO VALLEY FROM SAN ANGELO LBBSPSSJT...WWUS35 KSJT NORTH TEXAS FROM FORT WORTH FTWSPSFTW...WWUS35 KFTW SOUTHEAST TEXAS FROM HOUSTON/GALV<ESTON SATSPSHOU...WWUS35 KHOU COASTAL BEND/ FROM CORPUS CHRISTI SATSPSCRP...WWUS35 KCRP RIO GRANDE PLAINS
Special weather statement, Oct 5, 7:06 PM CDT, 3 hours 12 minutes before
TXZ171-172-188-060100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 706 PM CDT MON OCT 5 1998 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT TIL 9PM CDT... AT 7 PM...DOPPLER RADAR SHOWED BANDS OF SHOWERS AND THUNDERSTORMS DEVELOPING SOUTH INTO THE AREA ALONG AND IMMEDIATELY BEHIND A STRONG COLD FRONTAL BOUNDARY. THE THUNDERSTORMS HAVE SHOWN SIGNS OF INTENSIFYING AS THEY MOVE INTO VERY UNSTABLE AIR. NO SEVERE WEATHER WAS IN THE AREA AT THIS TIME. THE FRONT WILL MOVE INTO THE AREA OVER THE NEXT HOUR INCREASING THE THREAT OF SEVERE WEATHER. STAY TUNED TO LOCAL OR CABLE TELEVISION STATIONS...RADIO STATIONS OR NOAA WEATHER RADIO STATIONS FOR UPDATES OR WARNINGS. REMEMBER BE PREPARED TO QUICKLY MOVE TO SAFETY IF SEVERE WEATHER IS SPOTTED OR A WARNING IS ISSUED.
Special weather statement, Oct 5, 7:06 PM CDT, 3 hours 12 minutes before
TXZ171-172-188-060100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 706 PM CDT MON OCT 5 1998 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT TIL 9PM CDT... AT 7 PM...DOPPLER RADAR SHOWED BANDS OF SHOWERS AND THUNDERSTORMS DEVELOPING SOUTH INTO THE AREA ALONG AND IMMEDIATELY BEHIND A STRONG COLD FRONTAL BOUNDARY. THE THUNDERSTORMS HAVE SHOWN SIGNS OF INTENSIFYING AS THEY MOVE INTO VERY UNSTABLE AIR. NO SEVERE WEATHER WAS IN THE AREA AT THIS TIME. THE FRONT WILL MOVE INTO THE AREA OVER THE NEXT HOUR INCREASING THE THREAT OF SEVERE WEATHER. STAY TUNED TO LOCAL OR CABLE TELEVISION STATIONS...RADIO STATIONS OR NOAA WEATHER RADIO STATIONS FOR UPDATES OR WARNINGS. REMEMBER BE PREPARED TO QUICKLY MOVE TO SAFETY IF SEVERE WEATHER IS SPOTTED OR A WARNING IS ISSUED.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 5, 8:20 PM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 90 min |
| Oct 5, 9:41 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 89 min |
| Oct 5, 11:08 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 92 min |
| Oct 5, 11:39 PM CDT | Severe Thunderstorm Warning | EWX | Kinney, Val Verde | 61 min |
| Oct 6, 3:36 AM CDT | Flash Flood Warning | EWX | DeWitt, Lavaca | 2 hr |
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.