Alert archive / Texas / Flash Flood Warnings in 1998

Flash Flood Warning 14, NWS Austin/San Antonio, TX

February 14, 1998Medina County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Feb 14, 1998, 9:35 AM CST 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
Feb 14, 1998, 9:35 AM CST (15:35 UTC)
Expired
Feb 14, 1998, 12:30 PM CST
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 12:00Z, 3.6 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.

Skew-T log-pSkew-T log-p diagram, Del Rio, TX at 12:00Z on 1998-02-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 12:00Z on 1998-02-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 198 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
600 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
198 m²/s²
0-3 km storm-relative helicity
239 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KSAT 141541
FFWSAT
TXC325-141830-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
935 AM CST SAT FEB 14 1998
 
THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1230 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTH CENTRAL TEXAS
 
   ...MEDINA COUNTY
 
NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A LARGE BAND OF
MODERATE TO HEAVY RAIN MOVING THROUGH MEDINA COUNTY DROPPING AN INCH AN
HOUR WITH ISOLATED AMOUNTS NEAR TWO INCHES.  ADDITIONAL HEAVY RAINFALL
WILL CONTINUE TO MOVE INTO MEDINA COUNTY FROM THE SOUTH WITHIN THE
NEXT FEW HOURS.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  IT IS
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.  CAMPERS AND OTHER
PEOPLE IN RECREATION AREAS ALONG CREEKS...STREAMS...AND RIVERS IN
THE WARNING AREA SHOULD MOVE TO HIGH GROUND IMMEDIATELY.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IMMINENT.
MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT ATTEMPT TO
CROSS BRIDGES...OR LOW SPOTS IF WATER COVERS THE ROADWAY.  NEVER TRY
TO CROSS A FLOWING STREAM...EVEN A SMALL ONE...ON FOOT TO ESCAPE
RISING WATER DURING THREATENING RAINS.
 
 
 
&

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, Feb 14, 6:15 AM CST, 3 hours 20 minutes before
TXZ171>173-183>194-202>209-217>225-228-150000-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
615 AM CST SAT FEB 14 1998

...A FLASH FLOOD WATCH IS IN EFFECT TODAY FOR SEVERAL COUNTIES IN
SOUTH CENTRAL TEXAS INCLUDING THE CITY OF SAN ANTONIO...

RAINFALL AMOUNTS FROM A POWERFUL STORM SYSTEM POISED TO CROSS THE
SIERRA MADRE AND TEXAS TODAY WILL TOTAL 1 TO 3 INCHES SOUTH OF A LINE
FROM DEL RIO TO SAN ANTONIO... SEGUIN... GONZALES AND HALLETTSVILLE.

HEAVIER AMOUNTS ARE POSSIBLE WHERE THUNDERSTORMS REPEAT OR REDEVELOP
ACROSS A PARTICULAR LOCATION.

ELSEWHERE RAINFALL AMOUNTS OF 1/4 TO 1 INCH WILL OCCUR.

A FLASH FLOOD WATCH IS IN EFFECT TODAY FOR PARTS OF SOUTH CENTRAL
TEXAS.  THIS MEANS WEATHER CONDITIONS ARE FAVORABLE FOR HEAVY RAIN
AND FLOODING IN OR NEAR THE WATCH AREA.

AREAS WET FROM RECENT HEAVY RAIN OR HEAVY RAINFALL OF PREVIOUS MONTHS
ARE AT PRIME RISK FOR FLOODING IF HEAVY RAIN DEVELOPS.

THE WATCH AREA LIES ALONG AND SOUTH OF A LINE FROM EAGLE PASS... LA
PRYOR... HONDO... SAN ANTONIO... SEGUIN... GONZALES AND
HALLETTSVILLE.

HEAVY RAIN TODAY SHOULD TAPER TO LIGHT RAIN AND SHOWERS THIS EVENING
WITH RAIN DISSIPATING WEST TO EAST LEAVING DEL RIO FIRST...
HALLETTSVILLE LAST.

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 CENTRAL AND SOUTH
CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT:
HTTP://WWW.SRH.NOAA.GOV/EWX
Special weather statement, Feb 14, 6:15 AM CST, 3 hours 20 minutes before
TXZ171>173-183>194-202>209-217>225-228-150000-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
615 AM CST SAT FEB 14 1998

...A FLASH FLOOD WATCH IS IN EFFECT TODAY FOR SEVERAL COUNTIES IN
SOUTH CENTRAL TEXAS INCLUDING THE CITY OF SAN ANTONIO...

RAINFALL AMOUNTS FROM A POWERFUL STORM SYSTEM POISED TO CROSS THE
SIERRA MADRE AND TEXAS TODAY WILL TOTAL 1 TO 3 INCHES SOUTH OF A LINE
FROM DEL RIO TO SAN ANTONIO... SEGUIN... GONZALES AND HALLETTSVILLE.

HEAVIER AMOUNTS ARE POSSIBLE WHERE THUNDERSTORMS REPEAT OR REDEVELOP
ACROSS A PARTICULAR LOCATION.

ELSEWHERE RAINFALL AMOUNTS OF 1/4 TO 1 INCH WILL OCCUR.

A FLASH FLOOD WATCH IS IN EFFECT TODAY FOR PARTS OF SOUTH CENTRAL
TEXAS.  THIS MEANS WEATHER CONDITIONS ARE FAVORABLE FOR HEAVY RAIN
AND FLOODING IN OR NEAR THE WATCH AREA.

AREAS WET FROM RECENT HEAVY RAIN OR HEAVY RAINFALL OF PREVIOUS MONTHS
ARE AT PRIME RISK FOR FLOODING IF HEAVY RAIN DEVELOPS.

THE WATCH AREA LIES ALONG AND SOUTH OF A LINE FROM EAGLE PASS... LA
PRYOR... HONDO... SAN ANTONIO... SEGUIN... GONZALES AND
HALLETTSVILLE.

HEAVY RAIN TODAY SHOULD TAPER TO LIGHT RAIN AND SHOWERS THIS EVENING
WITH RAIN DISSIPATING WEST TO EAST LEAVING DEL RIO FIRST...
HALLETTSVILLE LAST.

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 CENTRAL AND SOUTH
CENTRAL TEXAS HOME PAGE OF THE INTERNET WORLD WIDE WEB AT:
HTTP://WWW.SRH.NOAA.GOV/EWX

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 14, 9:07 AM CSTFlash Flood WarningEWXKendall3 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.