Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 160, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 18, 1998, 7:40 AM CDT for Val Verde 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 18, 1998, 7:40 AM CDT (12:40 UTC)
- Expired
- Sep 18, 1998, 10:40 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Val Verde County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 0.7 hours before the alert went out and 66 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
- 938 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 567 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -55 m²/s²
- 0-3 km storm-relative helicity
- -19 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 181243 FFWSAT TXC465-181540- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 740 AM CDT FRI SEP 18 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * FLASH FLOOD WARNING FOR... VAL VERDE COUNTY IN SOUTH CENTRAL TEXAS * UNTIL 1040 AM CDT * FLASH FLOODING EXPECTED- ALONG HIGHWAY 90 FROM DEL RIO TO COMSTOCK ALONG HIGHWAY 277 FROM DEL RIO TO JUST SOUTH OF LOMA ALTA * NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED RAINSHOWERS WITH HEAVY RAIN OVER SOUTHERN VAL VERDE COUNTRY. THIS RAIN IS PRODUCING FLOODING OF LOW LYING AREAS LOW WATER CROSSING. RAINFALL RATES HAVE BEEN OVER ONE INCH AN HOUR. IF YOU ARE IN THLESE AREAS... MOVE TO HIGHER GROUND. DO NOT DRIVE THROUGH WATER COVERING THE ROAD. RESIDENTS NEED TO ACT QUICKLY. MOVE TO HIGHER GROUND TO ESCAPE FLOOD WATERS. 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.
In the hours before
Special weather statement, Sep 18, 5:15 AM CDT, 2 hours 25 minutes before
TXZ171>173-183>194-202>209-217>225-228-190000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 515 AM CDT FRI SEP 18 1998 NO HAZARDOUS WEATHER IS FORECAST FOR SOUTH CENTRAL TEXAS OR THE TEXAS HILL COUNTRY TODAY OR TONIGHT. RAINFALL AMOUNTS FROM SCATTERED SHOWERS AND THUNDERSTORMS TODAY AND TONIGHT WILL AVERAGE NEAR A QUARTER OF AN INCH OR LESS WITH ISOLATED AMOUNTS BETWEEN HALF AN INCH AND AN INCH POSSIBLE IN THE HEAVIER SHOWER AREAS. RESIDENTS OF SOUTH TEXAS ARE REMINDED TO MONITOR LATER FORECASTS AND ADVISORIES CONCERNING THE PROGRESS OF TROPICAL DEPRESSION EIGHT LOCATED IN THE WESTERN GULF OF MEXICO. THE TROPICAL DEPRESSION IS EXPECTED TO BECOME TROPICAL STORM HERMINE LATER TODAY. 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... OPERATES 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 18, 11:19 AM CDT | Flash Flood Warning | EWX | Kerr | 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.