Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 214, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 18, 1998, 11:38 PM CDT for Gonzales 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
- Oct 18, 1998, 11:38 PM CDT (04:38 UTC)
- Expired
- Oct 19, 1998, 3:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Gonzales County, TX
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 4.6 hours before the alert went out and 193 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 190441 FFWSAT TXC177-190800- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1138 PM CDT SUN OCT 18 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... GONZALES IN TEXAS * UNTIL 300 AM CDT * AT 1135 PM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SCATTERED SHOWERS AND THUNDERSTORMS...LOCALLY HEAVY RAIN OVER PARTS OF GONZALES COUNTY...MOVING NORTHEAT AT 15 MPH. AFTER HEAVY RAINS OF THE PAST FEW DAYS...ADDITIONAL RAINS OVER PARTS OF GONZALES COUNTY 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. DON'T DRIVE INTO AREAS WHERE WATER COVERS 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 TELL 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.
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, 3 hours 8 minutes earlier.
Area forecast discussion, Oct 18, 8:30 PM CDT, 3 hours 8 minutes 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 18, 6:00 PM CDT, 5 hours 38 minutes before
TXZ171>173-183>194-202>209-217>225-228-191100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 PM CDT SUN OCT 18 1998 A FLOOD AND FLASH FLOOD WATCH IS IN EFFECT THROUGH TONIGHT FOR A SMALL PART OF SOUTH CENTRAL TEXAS. ADDITIONAL RAINFALL AMOUNTS OF 5 INCHES ARE EXPECTED TONIGHT 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 AND COPIOUS PACIFIC MOISTURE STREAMING ACROSS MEXICO FROM HURRICANE MADELINE WILL CONTINUE TO GENERATE HEAVY RAINS AND A FEW THUNDERSTORMS. LIGHTER OVERRUNNING RAINS WELL BEHIND THE FRONTAL BOUNDARY WILL AFFECT THE REST OF SOUTH CENTRAL TEXAS AND ALL OF THE HILL COUNTRY WITH RAINFALL AMOUNTS OF 1 TO 2 INCHES OVERNIGHT. AS THE FRONTAL BOUNDARY BECOMES STATIONARY OVER THE COASTAL WATERS AND LOWER VALLEY MONDAY...LIGHT TO MODERATE RAINS WILL ENCOMPASS ALL OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY WITH GENERAL RAINFALL AMOUNTS OF ONE-HALF TO ONE INCH. PERSONS IN OR NEAR THE WATCH AREA ARE URGED TO CHECK PREPAREDNESS REQUIREMENTS...KEEP INFORMED AND BE READY TO TAKE ACTION IF HEAVY RAIN OR FLOODING IS OBSERVED OR A WARNING IS ISSUED. 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...WWUS35 KHOU COASTAL BEND/ FROM CORPUS CHRISTI SATSPSCRP...WWUS35 KCRP RIO GRANDE PLAINS
Special weather statement, Oct 18, 6:00 PM CDT, 5 hours 38 minutes before
TXZ171>173-183>194-202>209-217>225-228-191100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 PM CDT SUN OCT 18 1998 A FLOOD AND FLASH FLOOD WATCH IS IN EFFECT THROUGH TONIGHT FOR A SMALL PART OF SOUTH CENTRAL TEXAS. ADDITIONAL RAINFALL AMOUNTS OF 5 INCHES ARE EXPECTED TONIGHT 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 AND COPIOUS PACIFIC MOISTURE STREAMING ACROSS MEXICO FROM HURRICANE MADELINE WILL CONTINUE TO GENERATE HEAVY RAINS AND A FEW THUNDERSTORMS. LIGHTER OVERRUNNING RAINS WELL BEHIND THE FRONTAL BOUNDARY WILL AFFECT THE REST OF SOUTH CENTRAL TEXAS AND ALL OF THE HILL COUNTRY WITH RAINFALL AMOUNTS OF 1 TO 2 INCHES OVERNIGHT. AS THE FRONTAL BOUNDARY BECOMES STATIONARY OVER THE COASTAL WATERS AND LOWER VALLEY MONDAY...LIGHT TO MODERATE RAINS WILL ENCOMPASS ALL OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY WITH GENERAL RAINFALL AMOUNTS OF ONE-HALF TO ONE INCH. PERSONS IN OR NEAR THE WATCH AREA ARE URGED TO CHECK PREPAREDNESS REQUIREMENTS...KEEP INFORMED AND BE READY TO TAKE ACTION IF HEAVY RAIN OR FLOODING IS OBSERVED OR A WARNING IS ISSUED. 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...WWUS35 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 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 | DeWitt, Gonzales, Karnes | 4 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.