Alert archive / Texas / Flash Flood Warnings in 1990

Flash Flood Warning 40, NWS San Angelo, TX

August 5, 19904 counties in Texas

NWS San Angelo, TX issued this flash flood warning at Aug 5, 1990, 2:44 PM CDT for 4 counties in Texas. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Aug 5, 1990, 2:44 PM CDT (19:44 UTC)
Expired
Aug 5, 1990, 10:45 PM CDT
In force
8 hr
Issued by
NWS San Angelo, TX
Area
Whole counties

Counties Crockett County, TX, Menard 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, 7.7 hours before the alert went out and 156 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 051946
FFWSJT
TXC105-327-413-435-060345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
244 PM CDT SUN AUG 5 1990
 
THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 1045 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES
 
IN  TEXAS
 
   ...SOUTHERN CROCKETT COUNTY...WESTERN MENARD COUNTY
   ...SCHLEICHER COUNTY...SUTTON COUNTY
 
AT 215 PM SAN ANGELO RADAR INDICATED LIGHT TO MODERATE RAIN ACOSS THE
NORHTERN AND WESTERN CONCHO VALLEY.
 
THE SHERIFF'S OFFICE IN ELDORADO REPORTS THAT U.S. 190 IS NOW OPEN,
BUT FM 2291 SOUTH OF ELDORADO, FM 2596 NEAR THE SUTTON/SCHLEICHER
COUNTY LINE, AND FM 864 SIX MILES SOUTHWEST OF FT MCKAVETT ARE CLOSED.
IN MENARD COUNTY FM 2872, 2291, 2092, 1311 AND 864 ARE CLOSED DUE TO
HIGH WATER. THE SHERIFF'S OFFICE ALSO REPORTED THAT THE SAN SABA RIVER
AT MENARD WAS 14 FEET OUT OF IT'S BANK. THE SUTTON COUNTY SHERIFF'S
REPORTS THAT FM 2129, 1691, 189, 864, AND 1989 TO SONORA CAVERNS ARE
CLOESD. THE CROCKETT COUNTY SHERRIF'S OFFICE REPORTS THAT 163, AND THE
PANDALE ROAD ARE CLOSED.
 
ALTHROUGH NO RAIN IS OCCURRING IN MENARD, SUTTON, OR SCHLEICHER COUNTI
ANY ADDITIONAL RAINS IN THOSE AREAS WOULD ONLY ADD TO THE RUNOFF.
 
A FLOOD WARNING MEANS THAT FLOODING IS IMMINENT.  IT'S
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS.  CAMPERS SHOULD
AVOID CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
CROSS SAFELY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE
ABANDONED QUICKLY.  MOVmE TO HIGHER GROUND.
 
KEEP LISTENING TO YOUR NOAA WEATHER RADIO FOR FURTHER UPDATES.

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, 7:14 AM CDTFlash Flood WarningSJTSchleicher7 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.