Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 134, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Aug 30, 1998, 8:35 PM CDT for 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 30, 1998, 8:35 PM CDT (01:35 UTC)
- Expired
- Aug 30, 1998, 11:30 PM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Medina County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 1.6 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
- 527 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 1992 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 3 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 310136 FFWSAT TXC325-310430- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 835 PM CDT SUN AUG 30 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... MEDINA COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 1130 PM CDT * FLASH FLOODING EXPECTED AROUND- D'HANIS DOWNSTREAM TOWARD HONDO * SLOW MOVING THUNDERSTORMS PRODUCING RAINFALL IN EXCESS OF 1.5 INCHES AN HOUR OVER THE HONDO AND VERDE CREEKS NORTH OF THE CITY OF HONDO. ALSO RADAR ESTIMATES HEAVY RAINS UP TO 2.9 INCHES AN HOUR OVER SECO CREEK NORTH OF D'HANIS. IF YOU ARE IN THESE AREAS... MOVE TO HIGHER GROUND. DO NOT DRIVE THROUGH WATER COVERING THE ROAD. MANY SECONDARY ROADS AND LOW WATER CROSSINGS WILL FLOOD THE NEXT FEW HOURS...MAKING SECONDARY ROADS...LOW BRIDGES...AND LOW WATER CROSSINGS VERY HAZARDOUS TO AUTO TRAFFIC. MOTORISTS SHOULD NOT ENTER FLOODED LOW WATER CROSSINGS UNDER ANY CIRCUMSTANCES. RESIDENTS IN FLOOD PRONE AREAS OF D'HANIS SHOULD MONITOR NOAA WEATHER RADIO FOR WEATHER AND FLOOD STATEMENTS AND WARNINGS. EMERGENCY OFFICIALS WILL ADVISE RESIDENTS TO EVACUATE IF FLOODING THREATENS THEIR HOMES.
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 30, 5:30 PM CDT, 3 hours 5 minutes before
TXZ171>173-183>194-202>209-217>225-228-311100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 530 PM CDT SUN AUG 30 1998 THERE IS A CHANCE OF SEVERE THUNDERSTORMS ACROSS CENTRAL AND SOUTHERN PORTIONS OF THE HILL COUNTRY AND SOUTH CENTRAL TEXAS THIS EVENING. INSTABILITY ALOFT AND A COUPLE OF SURFACE LOW PRESSURE CENTERS FOCUSING MOIST..UNSTABLE GULF AIR INTO THEM WILL HELP PRODUCE SCATTERED TO NUMEROUS THUNDERSTORMS ACROSS THE PORTIONS OF THE HILL COUNTRY AND SOUTH CENTRAL TEXAS THIS EVENING. THE ACTIVITY WILL WEAKEN TO BELOW SEVERE LEVELS AFTER DARK. THE MAIN THREATS WILL BE FROM HAIL AND HIGH WINDS..POSSIBLY IN EXCESS OF 50 MILES AN HOUR. A SLIGHT CHANCE OF SEVERE THUNDERSTORMS WILL CONTINUE MONDAY THROUGHOUT SOUTH CENTRAL TEXAS AND THE HILL COUNTRY WITH A SIMILAR SCENARIO EXPECTED. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECAST...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. 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, Aug 30, 5:30 PM CDT, 3 hours 5 minutes before
TXZ171>173-183>194-202>209-217>225-228-311100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 530 PM CDT SUN AUG 30 1998 THERE IS A CHANCE OF SEVERE THUNDERSTORMS ACROSS CENTRAL AND SOUTHERN PORTIONS OF THE HILL COUNTRY AND SOUTH CENTRAL TEXAS THIS EVENING. INSTABILITY ALOFT AND A COUPLE OF SURFACE LOW PRESSURE CENTERS FOCUSING MOIST..UNSTABLE GULF AIR INTO THEM WILL HELP PRODUCE SCATTERED TO NUMEROUS THUNDERSTORMS ACROSS THE PORTIONS OF THE HILL COUNTRY AND SOUTH CENTRAL TEXAS THIS EVENING. THE ACTIVITY WILL WEAKEN TO BELOW SEVERE LEVELS AFTER DARK. THE MAIN THREATS WILL BE FROM HAIL AND HIGH WINDS..POSSIBLY IN EXCESS OF 50 MILES AN HOUR. A SLIGHT CHANCE OF SEVERE THUNDERSTORMS WILL CONTINUE MONDAY THROUGHOUT SOUTH CENTRAL TEXAS AND THE HILL COUNTRY WITH A SIMILAR SCENARIO EXPECTED. THE HAZARDOUS WEATHER OUTLOOK NORMALLY WILL BE UPDATED BY MEANS OF THE ZONE FORECAST...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. 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
Local storm report, Aug 30, 7:10 PM CDT, 1 hour 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
710 PM CDT SUN AUG 30 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0642 PM AUSTIN TX WIND
08/30/98 TRAVIS 50 KT (58 MPH) WIND
GUST AT BERGSTROM
AIR FORCE BASELocal storm report, Aug 30, 7:10 PM CDT, 1 hour 25 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
710 PM CDT SUN AUG 30 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0642 PM AUSTIN TX WIND
08/30/98 TRAVIS 50 KT (58 MPH) WIND
GUST AT BERGSTROM
INTERNATIONAL AIRPORTLocal storm report, Aug 30, 7:10 PM CDT, 1 hour 25 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
710 PM CDT SUN AUG 30 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0642 PM AUSTIN TX WIND
08/30/98 TRAVIS 50 KT (58 MPH) WIND
GUST AT BERGSTROM
AIR FORCE BASELocal storm report, Aug 30, 7:10 PM CDT, 1 hour 25 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTION
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
710 PM CDT SUN AUG 30 1998
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0642 PM AUSTIN TX WIND
08/30/98 TRAVIS 50 KT (58 MPH) WIND
GUST AT BERGSTROM
INTERNATIONAL AIRPORTThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 30, 7:25 PM CDT | Severe Thunderstorm Warning | EWX | Bandera | 65 min |
| Aug 30, 7:36 PM CDT | Severe Thunderstorm Warning | EWX | Hays, Travis | 64 min |
| Aug 30, 8:09 PM CDT | Severe Thunderstorm Warning | EWX | Caldwell | 61 min |
| Aug 31, 3:30 PM CDT | Severe Thunderstorm Warning | EWX | Edwards | 60 min |
| Aug 31, 3:50 PM CDT | Flash Flood Warning | EWX | Bexar | 80 min |
| Aug 31, 4:37 PM CDT | Flash Flood Warning | EWX | Uvalde | 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.