Alert archive / Texas / Flash Flood Warnings in 1998
Flash Flood Warning 11, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jan 31, 1998, 7:26 AM CST for Uvalde County, Texas. It was in force for 4 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
- Jan 31, 1998, 7:26 AM CST (13:26 UTC)
- Expired
- Jan 31, 1998, 11:30 AM CST
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Uvalde County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 12:00Z, 1.4 hours before the alert went out and 104 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
- 425 J/kg
- Mixed-layer CIN
- -4 J/kg
- Mixed-layer LCL
- 509 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 125 m²/s²
- 0-3 km storm-relative helicity
- 221 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.9
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 311325 FFWSAT TXC463-311730- BULLETIN - EAS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 726 AM CST SAT JAN 31 1998 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1130 AM CST FOR PEOPLE IN THE FOLLOWING LOCATION... IN SOUTH CENTRAL TEXAS ...NORTHERN UVALDE COUNTY AT 720 AM NATIONAL WEATHER SERVICE DOPPLER RADAR AND OBSERVER RAINFALL TOTALS INDICATED THAT 3 TO 4 INCHES OF RAIN HAS FALLEN SINCE 600 AM IN NORTH CENTRAL UVALDE COUNTY NEAR THE TOWN OF CONCAN. GENERAL RAINFALL OF 1 TO 2 INCHES WERE COMMON ACROSS THE NORTHERN 1/3RD OF THE COUNTY. ANOTHER BAND OF THUNDERSTORMS WAS APPROACHING FROM THE NORTHWEST AND WILL ADD TO THE ALREADY DANGEROUS SITUATION. 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, Jan 31, 5:13 AM CST, 2 hours 13 minutes before
TXZ171>173-183>194-202>209-217>225-228-010000- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 513 AM CST SAT JAN 31 1998 THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS TODAY FOR THE HILL COUNTRY AND SOUTH CENTRAL TEXAS. AN UPPER LEVEL DISTURBANCE WILL MOVE ACROSS NORTH TEXAS TODAY. THIS SYSTEM WILL INTERACT WITH THE UNSTABLE ATMOSPHERE IN PLACE AND TRIGGER SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS. SOME OF THE STORMS MAY BECOME SEVERE WITH THE PRIMARY THREAT BEING LARGE HAIL. LOCALLY HEAVY RAINFALL IS ALSO POSSIBLE TODAY. RAINFALL AMOUNTS WILL AVERAGE AROUND 1/2 INCH WITH ISOLATED TOTALS OF 3 TO 4 INCHES POSSIBLE WITH THE STRONGER STORMS. 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 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.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 31, 5:02 AM CST | Flash Flood Warning | EWX | Bandera | 3 hr |
| Jan 31, 6:08 AM CST | Severe Thunderstorm Warning | EWX | Edwards | 67 min |
| Jan 31, 6:20 AM CST | Severe Thunderstorm Warning | EWX | Real, Uvalde | 55 min |
| Jan 31, 10:33 AM CST | Flash Flood Warning | EWX | Bexar | 117 min |
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.