Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 50, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Aug 6, 1998, 8:19 AM CDT for Atascosa County, Bexar County, Medina 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
- Aug 6, 1998, 8:19 AM CDT (13:19 UTC)
- Expired
- Aug 6, 1998, 11:10 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Atascosa County, TX, Bexar County, TX, Medina County, TX
The radar
The Austin/San Antonio radar (KEWX), 85 km from the middle of the area, began a volume at 13:21 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
Del Rio, TX (KDRT), launched 12:00Z, 1.3 hours before the alert went out and 206 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
- 206 J/kg
- Mixed-layer CIN
- -44 J/kg
- Mixed-layer LCL
- 745 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- 2 m²/s²
- 0-3 km storm-relative helicity
- 28 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 061320 FFWSAT TXC029-325-013-061610- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 819 AM CDT THU AUG 6 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... MEDINA COUNTY IN SOUTH CENTRAL TEXAS BEXAR COUNTY IN SOUTH CENTRAL TEXAS ATASCOSA COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 1110 AM CDT * FLASH FLOODING EXPECTED AROUND- THE SAN ANTONIO METROPOLATAIN AND SURROUNDING AREAS HONDO AND SURROUNDING AREAS ATASCOSA COUNTY * UP TO 2 ICHES OF RAINFALL HAS FALLEN OVER PORTIONS OF SAN ANTONIO CREATING MINOR FLOODING PROBLEMS THIS MORNING. MORE SHOWERS WILL MOVE ACROSS MEDINA...BEXAR AND ATASCOSA COUNTIES THROUGH THE MORNING HOURS. RAINFALL RATES OF UP TO ONE INCH PER HOUR CAN BE EXPECTED OVER THE NEXT FEW HOURS. UP TO ONE TO TWO INCHES OF ADDITINAL RAINFALL CAN BE EXPECTED THIS MORNING CAUSING ADDITIONAL FLOODING. IF YOU ARE IN THESE AREAS... MOVE TO HIGHER GROUND. DO NOT DRIVE THROUGH WATER COVERING THE ROAD AS MOST FLOOD FATALATIES OCCUR IN AUTOMOBILES. 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, Aug 6, 5:06 AM CDT, 3 hours 13 minutes before
TXZ171>173-183>194-202>209-217>225-228-062300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 AM CDT THU AUG 6 1998 A SERIES OF UPPER LEVEL DISTURBANCES MOVING ACROSS SOUTH CENTRAL TEXAS IN COMBINATION WITH A NEARLY STATIONARY FRONT DRAPED ACROSS THE REGION WILL TRIGGER SHOWERS AND THUNDERSTORMS TODAY AND TONIGHT OVER MUCH OF SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY. RAINFALL TOTALS OF 1 TO 2 INCHES ARE EXPECTED BY FRIDAY MORNING WITH SCATTERED HIGHER AMOUNTS NEAR 4 INCHES POSSIBLE. THE STRONGER STORMS MAY PRODUCE LOCALLY HEAVY RAINFALL WITH THE POSSIBILITY OF LOCALIZED FLOODING. RESIDENTS AND TRAVELERS ACROSS THE HILL COUNTRY AND SOUTH CENTRAL TEXAS SHOULD BE ALERT TO SUDDEN DOWNPOURS AND THE POSSIBILITY OF FLOODING. 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 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 OR TUNE TO THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...OPERATING ON A FREQUENCY BETWEEN 162.4V00 MHZ AND 162.550 MHZ.
Special weather statement, Aug 6, 6:00 AM CDT, 2 hours 19 minutes before
TXZ171>173-183>194-202>209-217>225-228-062300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 600 AM CDT THU AUG 6 1998 A SERIES OF UPPER LEVEL DISTURBANCES MOVING ACROSS SOUTH CENTRAL TEXAS IN COMBINATION WITH A NEARLY STATIONARY FRONT DRAPED ACROSS THE REGION WILL TRIGGER SHOWERS AND THUNDERSTORMS TODAY AND TONIGHT OVER MUCH OF SOUTH CENTRAL TEXAS AND THE TEXAS HILL COUNTRY. RAINFALL TOTALS OF 1 TO 2 INCHES ARE EXPECTED BY FRIDAY MORNING WITH SCATTERED HIGHER AMOUNTS NEAR 4 INCHES POSSIBLE. THE STRONGER STORMS MAY PRODUCE LOCALLY HEAVY RAINFALL WITH THE POSSIBILITY OF LOCALIZED FLOODING. RESIDENTS AND TRAVELERS ACROSS THE HILL COUNTRY AND SOUTH CENTRAL TEXAS SHOULD BE ALERT TO SUDDEN DOWNPOURS AND THE POSSIBILITY OF FLOODING. 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 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 OR TUNE TO THE VOICE OF THE NATIONAL WEATHER SERVICE...NOAA WEATHER RADIO...OPERATING ON A FREQUENCY BETWEEN 162.400 MHZ AND 162.550 MHZ.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 7:36 AM CDT | Flash Flood Warning | EWX | Frio, Zavala | 2 hr |
| Aug 6, 9:17 AM CDT | Flash Flood Warning | EWX | Dimmit | 3 hr |
| Aug 6, 9:47 AM CDT | Flash Flood Warning | EWX | Frio | 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.