Alert archive / Texas / Flash Flood Warnings in 1990

Flash Flood Warning 39, NWS San Angelo, TX

August 5, 1990Schleicher County, Texas

NWS San Angelo, TX issued this flash flood warning at Aug 5, 1990, 7:14 AM CDT for Schleicher County, Texas. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Aug 5, 1990, 7:14 AM CDT (12:14 UTC)
Expired
Aug 5, 1990, 2:15 PM CDT
In force
7 hr
Issued by
NWS San Angelo, TX
Area
Whole counties

County Schleicher 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, 0.2 hours before the alert went out and 172 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 1990-08-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 681 joules per kilogram.LCLLFCEL10008507005003002001001 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 1990-08-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 6 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
681 J/kg
Mixed-layer CIN
-88 J/kg
Mixed-layer LCL
1003 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
6 m²/s²
0-3 km storm-relative helicity
24 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 051217
FFWSJT
TXC413-051915-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
714 AM CDT SUN AUG 5 1990
 
THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  215 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES
 
IN  TEXAS
 
   ...SCHLEICHER COUNTY
 
THE SHERIFF'S OFFICE IN ELDORADO REPORTS SEVERAL HIGHWAYS CLOSED BY
HIGH WATER IN SCHLEICHER COUNTY. ROADS CLOSED INCLUDE U.S. HIGHWAY 190
EAST ABOUT 10 MILES EAST OF ELDORADO, FM 2129 SOUTH OF ELDORADO, FM
2596 NEAR THE SUTTON-SCHLEICHER COUNTY LINE AND FM 864 ABOUT SIX MILES
SOUTHWEST OF FT MCKAVETT. HEAVY RAINS YESTERDAY AND LAST NIGHT
FOLLOWED BY MORE HEAVY RAIN PRESENTLY HAVE CAUSED WIDESPREAD FLOODING
OF CREEKS AND DRAWS. MANY LOW WATER CROSSINGS ARE IMPASSABLE DUE TO
THE FLOOD WATERS. AT 705 AM CDT SAN ANGELO RADAR SHOWED SHOWERS AND
THUNDERSTORMS, SOME WITH HEAVY RAIN, ACROSS ALL OF SCHLEICHER COUNTY.
THE HEAVIEST RAIN WAS FROM ELDORADO TO FT MCKAVETT.
 
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 ROADWjAY.  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
Aug 4, 7:18 PM CDTFlash Flood WarningSJTSchleicher3 hr
Aug 4, 10:09 PM CDTFlash Flood WarningSJTSchleicher9 hr
Aug 5, 2:44 PM CDTFlash Flood WarningSJTCrockett, Menard, Schleicher, Sutton8 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.