Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 152, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 16, 1998, 5:11 AM CDT for Bexar County, Comal 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
- Sep 16, 1998, 5:11 AM CDT (10:11 UTC)
- Expired
- Sep 16, 1998, 8:10 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Bexar County, TX, Comal County, TX
The radar
The Austin/San Antonio radar (KEWX), 37 km from the middle of the area, began a volume at 10:14 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, 10.2 hours before the alert went out and 235 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
- 7 J/kg
- Mixed-layer CIN
- -132 J/kg
- Mixed-layer LCL
- 571 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -49 m²/s²
- 0-3 km storm-relative helicity
- -6 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 161014 FFWSAT TXC029-091-161310- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 511 AM CDT WED SEP 16 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... COMAL COUNTY IN SOUTH CENTRAL TEXAS NORTHERN AND NORTHEASTERN BEXAR COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 810 AM CDT * AT 505 AM CDT...DOPPLER RADAR INDICATED A SLOW MOVING THUNDERSTORM LOCATED FROM RANDOLPH AFB AND GARDEN RIDGE TO GUADALUPE RIVER STATE PARK. MOVEMENT WAS WEST AT LESS THAN 10 MPH. *RAINFALL RATES WERE ESTIMATED AT AROUND 1 INCH AND HOUR. MUCH OF THE RAINFALL WAS OCCURING OVER THE CIBOLO CREEK BASIN. RESIDENTS ALONG CIBOLO CREEK SHOULD CLOSELY MONITOR THE CREEK. AREA RESIDENTS SHOULD MONITOR FLOOD CONDITIONS... AND BE PREPARED TO MOVE TO HIGHER GROUND... SHOULD FLOOD WATERS THREATEN. IF FLASH FLOODING IS OBSERVED... ACT QUICKLY. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
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, Sep 16, 5:00 AM CDT, 11 minutes before
TXZ171>173-183>194-202>209-217>225-228-162300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 500 AM CDT WED SEP 16 1998 ...FLASH FLOOD WATCH IN EFFECT FOR TODAY FOR SOUTH CENTRAL TEXAS AND PORTIONS OF THE TEXAS HILL COUNTY... SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY ACROSS MUCH OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. A TROPICAL WAVE MOVING INLAND FROM THE MIDDLE TEXAS COAST IN CONJUNCTION WITH A TROPICAL MOISTURE PLUME...THAT EXTENDED FROM NORTHERN MEXICO TO THE ARKLATEX...WILL ALLOW FOR THE POSSIBILITY OF HEAVY RAINFALL TODAY. RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE ACROSS THE WATCH AREA. THE SHOWER AND THUNDERSTORM ACTIVITY WILL DIMINISH IN AREAL COVERAGE AND INTENSITY TONIGHT AS THE TROPICAL WAVE MOVES INLAND. WITH THE GROUND ALREADY SATURATED BY RECENT RAINS...RUNOFF WILL BE RAPID. HEAVY RAINS MAY CAUSE THE RAPID RISE OF STREAMS AND RIVERS...FLOODING LOW LYING AREAS AND LOW WATER CROSSINGS. PERSONS IN THE WATCH AREA SHOULD MONITOR YOUR LOCAL RADIO..TV OR TUNE TO NOAA WEATHER RADIO FOR THE LATEST INFORMATION. SHOULD FLOODING BE SEEN OR WARNINGS ISSUED..PERSONS SHOULD BE PREPARED TO SEEK HIGHER GROUND IMMEDIATELY. MOTORISTS SHOULD NOT ATTEMPT TO DRIVE THROUGH FLOODED OR LOW LYING AREAS WHERE WATER OF AN UNKNOWN DEPTH COVERS THE ROAD. 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, Sep 16, 5:00 AM CDT, 11 minutes before
TXZ171>173-183>194-202>209-217>225-228-162300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 500 AM CDT WED SEP 16 1998 ...FLASH FLOOD WATCH IN EFFECT FOR TODAY FOR SOUTH CENTRAL TEXAS AND PORTIONS OF THE TEXAS HILL COUNTY... SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED TODAY ACROSS MUCH OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. A TROPICAL WAVE MOVING INLAND FROM THE MIDDLE TEXAS COAST IN CONJUNCTION WITH A TROPICAL MOISTURE PLUME...THAT EXTENDED FROM NORTHERN MEXICO TO THE ARKLATEX...WILL ALLOW FOR THE POSSIBILITY OF HEAVY RAINFALL TODAY. RAINFALL AMOUNTS OF 2 TO 4 INCHES ARE POSSIBLE ACROSS THE WATCH AREA. THE SHOWER AND THUNDERSTORM ACTIVITY WILL DIMINISH IN AREAL COVERAGE AND INTENSITY TONIGHT AS THE TROPICAL WAVE MOVES INLAND. WITH THE GROUND ALREADY SATURATED BY RECENT RAINS...RUNOFF WILL BE RAPID. HEAVY RAINS MAY CAUSE THE RAPID RISE OF STREAMS AND RIVERS...FLOODING LOW LYING AREAS AND LOW WATER CROSSINGS. PERSONS IN THE WATCH AREA SHOULD MONITOR YOUR LOCAL RADIO..TV OR TUNE TO NOAA WEATHER RADIO FOR THE LATEST INFORMATION. SHOULD FLOODING BE SEEN OR WARNINGS ISSUED..PERSONS SHOULD BE PREPARED TO SEEK HIGHER GROUND IMMEDIATELY. MOTORISTS SHOULD NOT ATTEMPT TO DRIVE THROUGH FLOODED OR LOW LYING AREAS WHERE WATER OF AN UNKNOWN DEPTH COVERS THE ROAD. 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 |
|---|---|---|---|---|
| Sep 16, 3:58 PM CDT | Flash Flood Warning | EWX | DeWitt, Lavaca | 3 hr |
| Sep 16, 5:09 PM CDT | Flash Flood Warning | EWX | Gonzales | 116 min |
| Sep 16, 6:45 PM CDT | Flash Flood Warning | EWX | Edwards, Real | 3 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; radar from the NEXRAD Level II archive.