Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 217, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 19, 1998, 6:30 AM CDT for DeWitt County, Gonzales County, Karnes County, Texas. It was in force for 4 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 19, 1998, 6:30 AM CDT (11:30 UTC)
- Expired
- Oct 19, 1998, 10:30 AM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties DeWitt County, TX, Gonzales County, TX, Karnes County, TX
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 11.5 hours before the alert went out and 159 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
- 272 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 485 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 171 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 191131 FFWSAT TXC123-177-255-285-191530- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 630 AM CDT MON OCT 19 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... GONZALES IN TEXAS LAVACA IN TEXAS DEWITT IN TEXAS KARNES IN TEXAS * UNTIL 1030 AM CDT * AT 625 AM CDT... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED MODERATE RAINS OVER NORTHERN KARNES..GONZALES..NORTHERN DEWITT AND LAVACA COUNTIES...MOVING NORTHEAST AT 15 MPH. * AFTER THE HEAVY RAINS OF THE PAST FEW DAYS...ADDITIONAL RAINS OVER PORTIONS OF KARNES..GONZALES..DEWITT AND LAVACA COUNTIES WILL CAUSE FLOODING OVER LOW LYING AREAS AND LOW WATER CROSSINGS. FLOODING IN AND NEAR THE FLOOD PLAINS OF STREAMS..CREEKS AND RIVERS IS LIKELY. MOTORISTS ARE URGED TO USE EXTREME CAUTION AS THESE AREAS ARE CURRENTLY IN FLOOD AND GROUNDS ARE TOTALLY SATURATED. DRIVING IS DISCOURAGED UNLESS ABSOLUTELY NECESSARY. DO NOT DRIVE ACROSS FLOODED ROADWAYS..AND INTO LOW WATER CROSSINGS. CHILDREN SHOULD NOT BE ALLOWED NEAR CULVERTS..STREAMBEDS OR PLAY NEAR DRAINAGE DITCHES. WITH ESTIMATES OF UP TO 10 INCHES OF RAIN OVER SOUTHEAST PORTIONS OF SOUTH CENTRAL TEXAS..AND THE SAN ANTONIO..GUADALUPE..LAVACA.. AND NAVIDAD RIVER SYSTEMS IN FLOOD..THIS REMAINS A DANGEROUS WEATHER SITUATION. FURTHER RAINS WILL COMPOUND THE PROBLEMS ALREADY BEING EXPERIENCED. STAY TUNED TO YOUR LOCAL RADIO..TV OR TUNE TO NOAA WEATHER WEATHER FOR LATER STATEMENTS.
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.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this flash flood warning went out at Oct 18, 8:30 PM CDT, 10 hours earlier.
Area forecast discussion, Oct 18, 8:30 PM CDT, 10 hours before
COASTAL BEND FORECAST DISCUSSION NATIONAL WEATHER SERVICE CORPUS CHRISTI TX 830 PM CDT SUN OCT 18 1998 EXPECT AT LEAST LGT TO MDT CONVECTION/STRATIFORM PCPN TO CONTINUE ACRS THE CWA IN RESPONSE TO MSTR CONVERGENCE ASSOCD WITH THE NEARBY QUASI-STATIONARY FNT AND WITH OVERRUNNING. PW VALUES REMAIN HIGH OVR THE CWA. THUS FLOODING POTENTIAL REMAINS TNGT. NGM/ETA/AVN KEEPS SFC FNT...BASED ON THETA-E GRADIENT...ACRS THE CNTRL/SRN CWA MON... RESULTING IN CONTINUED MOD/HVY RAIN. NO CHGS ATTM. 87
In the hours before
Special weather statement, Oct 19, 5:25 AM CDT, 1 hour 5 minutes before
TXZ205>207-191215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 525 AM CDT MON OCT 19 1998 ...LIGHT TO MODERATE RAIN DEVELOPING ACROSS THE TRI COUNTY AREA... EARLY THIS MORNING...LIGHT TO MODERATE RAINS WERE DEVELOPING ACROSS THE NORTHEAST BEXAR..COMAL AND GUADALUPE COUNTY AREAS. CURRENTLY.. RAINFALL RATES WERE BETWEEN 1/4 TO 1/2 INCH AN HOUR..AND NO SIGNIFICANT FLOODING IS EXPECTED. HOWEVER..DUE TO PREVIOUS RAINS AND SATURATED GROUND CONDITIONS..RAPID PONDING OF WATER COULD OCCUR. MOTORISTS ARE URGED TO DRIVE WITH EXTREME CAUTION AND AVOID AREAS WHERE WATER IS FLOWING OVER THE ROADS. THESE AREAS WILL BE MONITORED CLOSELY FOR MORE INTENSE RAIN DEVELOPMENT AvND FLASH FLOOD WARNINGS WILL BE ISSUED AS CONDITIONS WARRANT.
Special weather statement, Oct 19, 5:25 AM CDT, 1 hour 5 minutes before
TXZ205>207-191215- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 525 AM CDT MON OCT 19 1998 ...LIGHT TO MODERATE RAIN DEVELOPING ACROSS THE TRI COUNTY AREA... EARLY THIS MORNING...LIGHT TO MODERATE RAINS WERE DEVELOPING ACROSS THE NORTHEAST BEXAR..COMAL AND GUADALUPE COUNTY AREAS. CURRENTLY.. RAINFALL RATES WERE BETWEEN 1/4 TO 1/2 INCH AN HOUR..AND NO SIGNIFICANT FLOODING IS EXPECTED. HOWEVER..DUE TO PREVIOUS RAINS AND SATURATED GROUND CONDITIONS..RAPID PONDING OF WATER COULD OCCUR. MOTORISTS ARE URGED TO DRIVE WITH EXTREME CAUTION AND AVOID AREAS WHERE WATER IS FLOWING OVER THE ROADS. THESE AREAS WILL BE MONITORED CLOSELY FOR MORE INTENSE RAIN DEVELOPMENT AvND FLASH FLOOD WARNINGS WILL BE ISSUED AS CONDITIONS WARRANT.
Special weather statement, Oct 19, 6:00 AM CDT, 30 minutes before
TXZ171>173-183>194-202>209-217>225-228-192300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 AM CDT MON OCT 19 1998 A FLOOD AND FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TODAY FOR PORTIONS OF SOUTH CENTRAL TEXAS. ADDITIONAL RAINFALL AMOUNTS OF ONE HALF TO ONE INCH ARE EXPECTED TODAY OVER SOUTHEAST SECTIONS OF SOUTH CENTRAL TEXAS...ROUGHLY EAST OF STATE HIGHWAY 97 FROM KARNES CITY TO LA GRANGE. A SHALLOW COLD FRONTAL BOUNDARY ALONG THE COASTAL PLAINS IS INTERACTING WITH PACIFIC MOISTURE FROM HURRICANE MADELINE AND WILL CONTINUE GENERATING LIGHT TO MODERATE RAIN SHOWERS THROUGH TODAY. WITH THE GROUND SATURATED FROM THE PREVIOUS HEAVY RAIN...LITTLE ADDITIONAL RAINFALL IS REQUIRED FOR MORE FLOODING IN THE WATCH AREA. MOTORISTS SHOULD NOT ATTEMPT TO DRIVE THROUGH FLOODED OR LOW LYING AREAS WHERE WATER IS FLOWING OR OF AN UNKNOWN DEPTH. KEEP CHILDREN AWAY FROM STORM DRAINS AND STREAMS. 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... OPERATING 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/GALVESTON SATSPSHOU...WW~US35 KHOU COASTAL BEND/ FROM CORPUS CHRISTI SATSPSCRP...WWUS35 KCRP RIO GRANDE PLAINS
Special weather statement, Oct 19, 6:00 AM CDT, 30 minutes before
TXZ171>173-183>194-202>209-217>225-228-192300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 AM CDT MON OCT 19 1998 A FLOOD AND FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TODAY FOR PORTIONS OF SOUTH CENTRAL TEXAS. ADDITIONAL RAINFALL AMOUNTS OF ONE HALF TO ONE INCH ARE EXPECTED TODAY OVER SOUTHEAST SECTIONS OF SOUTH CENTRAL TEXAS...ROUGHLY EAST OF STATE HIGHWAY 97 FROM KARNES CITY TO LA GRANGE. A SHALLOW COLD FRONTAL BOUNDARY ALONG THE COASTAL PLAINS IS INTERACTING WITH PACIFIC MOISTURE FROM HURRICANE MADELINE AND WILL CONTINUE GENERATING LIGHT TO MODERATE RAIN SHOWERS THROUGH TODAY. WITH THE GROUND SATURATED FROM THE PREVIOUS HEAVY RAIN...LITTLE ADDITIONAL RAINFALL IS REQUIRED FOR MORE FLOODING IN THE WATCH AREA. MOTORISTS SHOULD NOT ATTEMPT TO DRIVE THROUGH FLOODED OR LOW LYING AREAS WHERE WATER IS FLOWING OR OF AN UNKNOWN DEPTH. KEEP CHILDREN AWAY FROM STORM DRAINS AND STREAMS. 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... OPERATING 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/GALVESTON SATSPSHOU...WW~US35 KHOU COASTAL BEND/ FROM CORPUS CHRISTI SATSPSCRP...WWUS35 KCRP RIO GRANDE PLAINS
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 18, 10:13 PM CDT | Flash Flood Warning | EWX | DeWitt, Karnes | 5 hr |
| Oct 18, 11:38 PM CDT | Flash Flood Warning | EWX | Gonzales | 3 hr |
| Oct 19, 12:10 AM CDT | Flash Flood Warning | EWX | Lavaca | 3 hr |
| Oct 19, 3:00 AM CDT | Flash Flood Warning | EWX | DeWitt, Gonzales, Karnes, Lavaca | 3 hr |
| Oct 19, 6:30 AM CDT | Flash Flood Warning | EWX | Lavaca | 4 hr |
| Oct 19, 8:05 AM CDT | Flash Flood Warning | EWX | DeWitt, Gonzales, Karnes, Lavaca | 3 hr |
| Oct 19, 8:14 AM CDT | Flash Flood Warning | EWX | Bastrop, Caldwell, Fayette, Gonzales, Lee | 4 hr |
| Oct 19, 9:50 AM CDT | Flash Flood Warning | EWX | Comal, Hays | 3 hr |
| Oct 19, 10:53 AM CDT | Flash Flood Warning | EWX | Guadalupe | 82 min |
| Oct 19, 12:17 PM CDT | Flash Flood Warning | EWX | Caldwell, Comal, Guadalupe, Hays | 3 hr |
| Oct 19, 12:17 PM CDT | Flash Flood Warning | EWX | Bastrop, Lee | 3 hr |
| Oct 19, 12:17 PM CDT | Flash Flood Warning | EWX | Wilson | 3 hr |
| Oct 19, 3:19 PM CDT | Flash Flood Warning | EWX | Caldwell, Comal, Guadalupe | 2 hr |
| Oct 19, 3:19 PM CDT | Flash Flood Warning | EWX | Bastrop, Lee | 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.