Alert archive / Texas / Flash Flood Warnings in 1990

Flash Flood Warning 71, NWS San Angelo, TX

September 22, 1990Crockett County, Schleicher County, Sutton County, Texas

NWS San Angelo, TX issued this flash flood warning at Sep 22, 1990, 9:03 AM CDT for Crockett County, Schleicher County, Sutton County, Texas. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Sep 22, 1990, 9:03 AM CDT (14:03 UTC)
Expired
Sep 22, 1990, 3:00 PM CDT
In force
6 hr
Issued by
NWS San Angelo, TX
Area
Whole counties

Counties Crockett County, TX, Schleicher County, TX, Sutton County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 2.1 hours before the alert went out and 149 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 1990-09-22Temperature 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 1990-09-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 square meters per square second.1939Sfc1 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
NaN m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
5 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 KSJT 221406
FFWSJT
TXC105-413-435-222000-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
903 AM CDT SAT SEP 22 1990
 
THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  300 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES
 
IN  TEXAS
 
   ...SOUTHERN CROCKETT COUNTY...SCHLEICHER COUNTY...SUTTON COUNTY
 
AT 900 AM CDT THE SHERIFF'S OFFICES IN SUTTON AND SCHLEICHER COUNTIES
AND THE DPS OFFICE IN CROCKETT COUNTY REPORT MANY ROADS IN THOSE
COUNTIES CLOSED BY FLOOD WATERS. AT 855 AM CDT SAN ANGELO RADAR SHOWS
LIGHT TO MODERATE RAIN SHOWERS AND A FEW THUNDERSTORMS WITH HEAVIER
RAIN ACROSS EASTERN CROCKETT AND WESTERN SUTTON AND SCHLEICHER
COUNTIES. MOVEMENT WAS TO THE EAST AT 15 MILES AN HOUR.
 
AMONG THE ROADS CLOSED ARE FM 2083...FM 1973 AND STATE HIGHWAY 163 IN
CROCKETT COUNTY. IN SUTTON COUNTY FM 2129...FM 189...FM 1691 AND FM
2596...AND IN SCHLEICHER COUNTY FM 2129 AND FM 2596.
 
WITH THE CONTINUING RAINFALL ACROSS THESE AREAS ADDITIONAL RUNOFF WILL
OCCUR.
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...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 MOVE UP TO HIGHER GROUND.

The office that day

Everything else NWS San Angelo, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 22, 10:36 AM CDTFlash Flood WarningSJTIrion, Tom Green5 hr
Sep 22, 2:54 PM CDTFlash Flood WarningSJTIrion, Schleicher, Tom Green5 hr
Sep 22, 2:54 PM CDTFlash Flood WarningSJTCrockett, Sutton5 hr

Nearby

Flash Flood Warnings in Texas, 1990Every flash flood warning in 1990

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.