Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 156, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 16, 1998, 9:03 PM CDT for Dimmit County, Zavala 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, 9:03 PM CDT (02:03 UTC)
- Expired
- Sep 17, 1998, 12:05 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Dimmit County, TX, Zavala County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 2.1 hours before the alert went out and 133 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
- 185 J/kg
- Mixed-layer CIN
- -53 J/kg
- Mixed-layer LCL
- 1012 m above ground
- 0-6 km bulk shear
- 21 kt
- 0-1 km storm-relative helicity
- -115 m²/s²
- 0-3 km storm-relative helicity
- -106 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 170204 FFWSAT TXC127-507-170505- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 903 PM CDT WED SEP 16 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... ZAVALA COUNTY IN SOUTH CENTRAL TEXAS DIMMIT COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 1205 AM CDT * DOPPLER RADAR INDICATED SLOW MOVING AREAS OF RAIN OVER DIMMIT AND ZAVALA COUNTIES. MOVEMENT WAS SLOWLY TO THE SOUTHWEST NEAR 10 MPH. RADAR ESTIMATES NEAR TWO INCHES OF RAINFALL PER HOUR. THE HEAVIEST PRECIPITATION WAS LOCATED FROM SOUTH OF BATESVILLE TO ASHERTON. * FLOODING OF STREETS...LOW LYING AREAS...CREEKS AND STREAMS WILL OCCUR. IF YOU ARE IN THESE AREAS... MOVE TO HIGHER GROUND. DO NOT DRIVE THROUGH WATER COVERING THE ROAD! 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, 5:33 PM CDT, 3 hours 30 minutes before
TXZ171>173-183>194-202>209-217>225-228-171100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 533 PM CDT WED SEP 16 1998 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TONIGHT FOR PORTIONS OF SOUTH CENTRAL TEXAS AND THE HILL COUNTY EAST OF A CRYSTAL CITY TO MENARD... A VERY SLOW MOVING TROPICAL WAVE WILL INTERACT WITH A VERY MOIST AND UNSTABLE AIRMASS OVER SOUTH TEXAS. THUS...SCATTERED TO NUMEROUS SHOWERS AND MAINLY DAYTIME THUNDERSTORMS WILL CONTINUE THROUGH THURSDAY ACROSS MUCH OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. MOST AREAS WILL SEE LESS THAN 1/2 INCH OF RAIN. HOWEVER...ISOLATED LOCALLY HEAVY RAINFALL...WITH ADDITIONAL RAINFALL TOTALS OF 2 TO 4 INCHES...IS POSSIBLE ACROSS THE WATCH AREA. 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. OVER FLATTER TERRAIN...THE RAINS MAY CAUSE PONDING WHICH MAY FLOOD LOW LYING AREAS AND LOW ROADWAYS. 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, 5:33 PM CDT, 3 hours 30 minutes before
TXZ171>173-183>194-202>209-217>225-228-171100- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 533 PM CDT WED SEP 16 1998 ...FLASH FLOOD WATCH REMAINS IN EFFECT THROUGH TONIGHT FOR PORTIONS OF SOUTH CENTRAL TEXAS AND THE HILL COUNTY EAST OF A CRYSTAL CITY TO MENARD... A VERY SLOW MOVING TROPICAL WAVE WILL INTERACT WITH A VERY MOIST AND UNSTABLE AIRMASS OVER SOUTH TEXAS. THUS...SCATTERED TO NUMEROUS SHOWERS AND MAINLY DAYTIME THUNDERSTORMS WILL CONTINUE THROUGH THURSDAY ACROSS MUCH OF SOUTH CENTRAL TEXAS AND THE HILL COUNTRY. MOST AREAS WILL SEE LESS THAN 1/2 INCH OF RAIN. HOWEVER...ISOLATED LOCALLY HEAVY RAINFALL...WITH ADDITIONAL RAINFALL TOTALS OF 2 TO 4 INCHES...IS POSSIBLE ACROSS THE WATCH AREA. 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. OVER FLATTER TERRAIN...THE RAINS MAY CAUSE PONDING WHICH MAY FLOOD LOW LYING AREAS AND LOW ROADWAYS. 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 17, 12:25 AM CDT | Flash Flood Warning | EWX | Maverick | 3 hr |
| Sep 17, 5:26 PM CDT | Flash Flood Warning | EWX | Val Verde | 3 hr |
| Sep 17, 6:14 PM CDT | Flash Flood Warning | EWX | Edwards | 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.