Alert archive / Texas / Flash Flood Warnings in 1992
Flash Flood Warning 90, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Nov 19, 1992, 9:25 AM CST for Atascosa County, Wilson County, Texas. It was in force for 3 hr.
The area
The counties it named.
The facts
- Issued
- Nov 19, 1992, 9:25 AM CST (15:25 UTC)
- Expired
- Nov 19, 1992, 12:30 PM CST
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Atascosa County, TX, Wilson County, TX
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 3.4 hours before the alert went out and 173 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
- 1185 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 615 m above ground
- 0-6 km bulk shear
- 38 kt
- 0-1 km storm-relative helicity
- 197 m²/s²
- 0-3 km storm-relative helicity
- 264 m²/s²
- Significant tornado parameter
- 1.0
- Supercell composite
- 6.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KSAT 191529 FFWSAT TXC013-493-191830- BULLETIN - EBS ACTIVATION REQUESTED FLASH FLOOD WARNING NATIONAL WEATHER SERVICE SAN ANTONIO TX 925 AM CST THU NOV 19 1992 THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE UNTIL 1230 PM CST FOR PEOPLE IN THE FOLLOWING COUNTIES... IN SOUTH TEXAS ...ATASCOSA COUNTY...WILSON COUNTY OVERNIGHT RAINFALL IN ATASCOSA COUNTY HAS AVERAGED BETWEEN 2 AND 3 INCHES WITH ISOLATED TOTALS TO JUST OVER 4 INCHES. HEAVY RAIN CONTINUED ACROSS BOTH COUNTIES AT 915 AM THIS MORNING...WITH AN ADDITIONAL 2 TO 3 INCHES POSSIBLE IN THE NEXT TWO HOURS. FLASH FLOODING HAS ALREADY FORCED THE CLOSING OF SEVERAL ROADS...AND THE FLOODING WILL GET WORSE IN THE NEXT HOUR. EVERYONE IS URGED TO USE EXTREME CAUTION. AVOID ALREADY FLOODED AREAS. TRAVELERS SHOULD NOT ATTEMPT TO CROSS FLOODED ROADS. IF YOUR VEHICLE STALLS...LEAVE IT AND MOVE IMMEDIATELY TO HIGHER GROUND. 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, Nov 19, 5:02 AM CST, 4 hours 23 minutes before
TXZ030-034>037-191230- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 500 AM CST THU 19 NOV 1992 ...WIDESPREAD LIGHT TO MODERATE RAINS AND A FEW THUNDERSTORMS COVERED ALL THE HILL COUNTRY AND PARTS OF CENTRAL TEXAS... AT 455 AM...RADAR INDICATED THE LEADING EDGE OF THE RAIN PATTERN FROM CAMERON TO MANOR...SAN MARCOS AND SEGUIN. THE PRECIPITATION WAS MOVING TOWARD THE NORTHEAST AT 25 MPH. THE THUNDERSTORMS WITH HEAVY RAINS WERE WIDELY SCATTERED FROM GEORGETOWN TO CEDAR PARK...LAKE TRAVIS...DRIPPING SPRINGS AND WIMBERLY. THE THUNDERSTORMS WILL BE AFFECTING THE INTERSTATE 35 CORRIDOR FROM 5 TO 7AM. MOTORISTS ARE ADVISED TO GET AN EARLY START THIS MORNING AS ROADWAYS WILL" BE SLIPPERY AND RAINS WILL REDUCE VISIBILITIES. ALL PERSONS SHOULD CARRY THEIR UMBRELLAS AS RAINS WILL PERSIST ALL DAY. LUNA
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 19, 11:55 AM CST | Flash Flood Warning | EWX | Atascosa, Wilson | 6 hr |
Nearby
Flash Flood Warnings in Texas, 1992Every flash flood warning in 1992
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.