Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 26, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Feb 21, 1998, 9:32 PM CST for DeWitt County, Lavaca County, Texas. It was in force for 3 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
- Feb 21, 1998, 9:32 PM CST (03:32 UTC)
- Expired
- Feb 22, 1998, 12:30 AM CST
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties DeWitt County, TX, Lavaca County, TX
The radar
The Austin/San Antonio radar (KEWX), 100 km from the middle of the area, began a volume at 03:33 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 00:00Z, 3.5 hours before the alert went out and 168 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
- 1168 J/kg
- Mixed-layer CIN
- -1 J/kg
- Mixed-layer LCL
- 661 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 176 m²/s²
- 0-3 km storm-relative helicity
- 177 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 5.5
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 220333 FFWSAT TXC123-285-220630- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 932 PM CST SAT FEB 21 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1230 AM CST FOR PEOPLE IN THE FOLLOWING LOCATIONS... IN SOUTH CENTRAL TEXAS ...DE WITT COUNTY...LAVACA COUNTY AT 930 PM CST...THUNDERSTORMS WITH VERY HEAVY RAINFALL CONTINUED ACROSS SOUTHWESTERN DE WITT COUNTY TO EASTERN LAVACA COUNTY. RAINFALL RATES OF 1 TO 2 INCHES PER HOUR ARE INDICATED AS STORMS MOVE ACROSS THE COUNTIES. VERY HEAVY RAINFALL CAN BE EXPECTED TO CONTINUE OVER THE NEXT FEW HOURS. NUMEROUS AREAS HAVE BECOME FLOODED. 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 HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING. 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. 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.
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, 6:00 PM CST, 3 hours 32 minutes before
TXZ171>173-183>194-202>209-217>225-228-221200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 PM CST SAT FEB 21 1998 ...A TORNADO WATCH IS IN EFFECT UNTIL 9 PM THIS EVENING FOR PORTIONS OF SOUTH CENTRAL TEXAS...THE COASTAL BEND...THE RIO GRANDE PLAINS ...AND DEEP SOUTH TEXAS... ...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF SOUTH TEXAS TONIGHT... ...A WIND ADVISORY IS IN EFFECT FOR COASTAL BEND AND DEEP SOUTH TEXAS... A TORNADO WATCH IS IN EFFECT THIS EVENING UNTIL 9 PM FOR FOR SOUTH CENTRAL TEXAS...THE TEXAS COASTAL BEND...THE RIO GRANDE PLAINS...AND 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 MOVING EASTWARD ACROSS SOUTH CENTRAL TEXAS. THUNDERSTORMS ARE OCCURRING WITH LARGE HAIL...DAMAGING WINDS...FREQUENT DEADLY LIGHTNING...LOCALLY HEAVY RAINFALL AND FLASH FLOODING. TORNADOS ALSO HAVE OCCURRED. 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. FLOODING HAS OCCURRED WITH THE SEVERE THUNDERSTORMS IN THE WATCH AREA. HEAVY RAINS HAVE CAUSE RAPID RISES OF STREAMS AND RIVERS... FLOODING OF LOW LYING AREA...ROADS...AND LOW WATER CROSSINGS. RAINFALL AMOUNTS OF 2 TO 4 INCHES PER HOUR ARE LIKELY WITH ISOLATED AMOUNTS OF 4 TO 6 INCHES OR MORE POSSIBLE. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION. RESIDENTS AND EMERGENCY MANAGEMENT OFFICIALS IN SOUTH TEXAS NEED TO KEEP ADVISED OF THE ONGOING WEATHER AND ARE URGED TO MONITOR FORECASTS AND ADVISORIES ISSUED BY NATIONAL WEATHER SERVICE OFFICES. BULLETINS ARE BEING BROADCAST OVER LOCAL RADIO AND TV STATIONS...CABLE TV OUTLETS AND NOAA WEATHER RADIO STATIONS. PLEASE CONTINUE TO LISTEN TO 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, 6:32 PM CST, 3 hours before
TXZ171>173-183>194-202>209-217>225-228-221200- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 PM CST SAT FEB 21 1998 ...A TORNADO WATCH IS IN EFFECT UNTIL 9 PM THIS EVENING FOR PORTIONS OF SOUTH CENTRAL TEXAS...THE COASTAL BEND...THE RIO GRANDE PLAINS ...AND DEEP SOUTH TEXAS... ...A FLASH FLOOD WATCH IS IN EFFECT FOR ALL OF SOUTH TEXAS TONIGHT... ...A WIND ADVISORY IS IN EFFECT FOR COASTAL BEND AND DEEP SOUTH TEXAS... A TORNADO WATCH IS IN EFFECT THIS EVENING UNTIL 9 PM FOR FOR SOUTH CENTRAL TEXAS...THE TEXAS COASTAL BEND...THE RIO GRANDE PLAINS...AND 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 MOVING EASTWARD ACROSS SOUTH CENTRAL TEXAS. THUNDERSTORMS ARE OCCURRING WITH LARGE HAIL...DAMAGING WINDS...FREQUENT DEADLY LIGHTNING...LOCALLY HEAVY RAINFALL AND FLASH FLOODING. TORNADOS ALSO HAVE OCCURRED. 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. FLOODING HAS OCCURRED WITH THE SEVERE THUNDERSTORMS IN THE WATCH AREA. HEAVY RAINS HAVE CAUSE RAPID RISES OF STREAMS AND RIVERS... FLOODING OF LOW LYING AREA...ROADS...AND LOW WATER CROSSINGS. RAINFALL AMOUNTS OF 2 TO 4 INCHES PER HOUR ARE LIKELY WITH ISOLATED AMOUNTS OF 4 TO 6 INCHES OR MORE POSSIBLE. THIS IS A POTENTIALLY DANGEROUS WEATHER SITUATION. RESIDENTS AND EMERGENCY MANAGEMENT OFFICIALS IN SOUTH TEXAS NEED TO KEEP ADVISED OF THE ONGOING WEATHER AND ARE URGED TO MONITOR FORECASTS AND ADVISORIES ISSUED BY NATIONAL WEATHER SERVICE OFFICES. BULLETINS ARE BEING BROADCAST OVER LOCAL RADIO AND TV STATIONS...CABLE TV OUTLETS AND NOAA WEATHER RADIO STATIONS. PLEASE CONTINUE TO LISTEN TO 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, 7:10 PM CST, 2 hours 22 minutes before
TXZ183>187-189-202>207-217>225-228-220315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 710 PM CST SAT FEB 21 1998 THE SEVERE WEATHER AND FLASH FLOODING THREAT IS ENDING FROM THE WEST ACROSS SOUTH CENTRAL TEXAS. THE FOLLOWING COUNTIES ARE NO LONGER INCLUDED IN THE TORNADO WATCH OR FLASH FLOOD WATCH...VAL VERDE...EDWARDS...KINNEY...MAVERICK...REAL... KERR...BANDERA...UVALDE...ZAVALA...DIMMIT...MEDINA...FRIO...BEXAR... KENDALL...ATASCOSA...WILSON...GUADALUPE...COMAL AND CALDWELL. COUNTIES REMAINING IN THE TORNADO AND FLASH FLOOD WATCH ARE GONZALES...LAVACA...KARNES AND DEWITT. ALTHOUGH THE WATCHES HAVE BEEN CANCELLED FOR THESE COUNTIES...THERE IS A SLIGHT CHANCE FOR REDEVELOPMENT OF SHOWERS AND THUNDERSTORMS TONIGHT. BECAUSE OF SATURATED GROUND CONDITIONS...ADDITIONAL RAINFALL MAY CAUSE ISOLATED FLOODING PROBLEMS OVERNIGHT.
Special weather statement, Feb 21, 7:10 PM CST, 2 hours 22 minutes before
TXZ183>187-189-202>207-217>225-228-220315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 710 PM CST SAT FEB 21 1998 THE SEVERE WEATHER AND FLASH FLOODING THREAT IS ENDING FROM THE WEST ACROSS SOUTH CENTRAL TEXAS. THE FOLLOWING COUNTIES ARE NO LONGER INCLUDED IN THE TORNADO WATCH OR FLASH FLOOD WATCH...VAL VERDE...EDWARDS...KINNEY...MAVERICK...REAL... KERR...BANDERA...UVALDE...ZAVALA...DIMMIT...MEDINA...FRIO...BEXAR... KENDALL...ATASCOSA...WILSON...GUADALUPE...COMAL AND CALDWELL. COUNTIES REMAINING IN THE TORNADO AND FLASH FLOOD WATCH ARE GONZALES...LAVACA...KARNES AND DEWITT. ALTHOUGH THE WATCHES HAVE BEEN CANCELLED FOR THESE COUNTIES...THERE IS A SLIGHT CHANCE FOR REDEVELOPMENT OF SHOWERS AND THUNDERSTORMS TONIGHT. BECAUSE OF SATURATED GROUND CONDITIONS...ADDITIONAL RAINFALL MAY CAUSE ISOLATED FLOODING PROBLEMS OVERNIGHT.
Special weather statement, Feb 21, 7:45 PM CST, 1 hour 47 minutes before
TXZ183>187-189-202>207-217>225-228-220315- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 745 PM CST SAT FEB 21 1998 THE SEVERE WEATHER AND FLASH FLOODING THREAT IS ENDING FROM THE WEST ACROSS SOUTH CENTRAL TEXAS. THE FOLLOWING COUNTIES ARE NO LONGER INCLUDED IN THE TORNADO WATCH OR FLASH FLOOD WATCH...VAL VERDE...EDWARDS...KINNEY...MAVERICK...REAL... KERR...BANDERA...UVALDE...ZAVALA...DIMMIT...MEDINA...FRIO...BEXAR... KENDALL...ATASCOSA...WILSON...GUADALUPE...COMAL AND CALDWELL. THE FOLLWING COUNTIES ARE NO LONGER INCLUDED IN THE FLASH FLOOD WATCH...GILLESPIE...LLANO...BURNET...BLANCO...WILLIAMSON...TRAVIS... HAYS...BASTROP...LEE...FAYETTE. COUNTIES REMAINING IN THE TORNADO AND FLASH FLOOD WATCH ARE GONZALES...LAVACA...KARNES AND DEWITT. ALTHOUGH THE WATCHES HAVE BEEN CANCELLED FOR THESE COUNTIES...THERE IS A SLIGHT CHANCE FOR REDEVELOPMENT OF SHOWERS AND THUNDERSTORMS TONIGHT. BECAUSE OF SATURATED GROUND CONDITIONS...ADDITIONAL RAINFALL MAY CAUSE ISOLATED FLOODING PROBLEMS OVERNIGHT.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 21, 6:32 PM CST | Flash Flood Warning | EWX | DeWitt, Lavaca | 3 hr |
| Feb 21, 8:17 PM CST | Severe Thunderstorm Warning | EWX | DeWitt | 58 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.