Alert archive / Texas / Flash Flood Warnings in 1990

Flash Flood Warning 21, NWS San Angelo, TX

July 17, 1990Kimble County, Texas

NWS San Angelo, TX issued this flash flood warning at Jul 17, 1990, 10:59 AM CDT for Kimble County, Texas. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Jul 17, 1990, 10:59 AM CDT (15:59 UTC)
Expired
Jul 17, 1990, 6:00 PM CDT
In force
7 hr
Issued by
NWS San Angelo, TX
Area
Whole counties

County Kimble 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, 4.0 hours before the alert went out and 163 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 1990-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 449 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 1990-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -23 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
449 J/kg
Mixed-layer CIN
-27 J/kg
Mixed-layer LCL
681 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
-23 m²/s²
0-3 km storm-relative helicity
-20 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 171600
FFWSJT
TXC267-172300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
1059 AM CDT TUE JUL 17 1990
 
THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  600 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES
 
IN SOUTH CENTRAL TEXAS
 
   ...KIMBLE COUNTY
 
THE FLOOD WARNING FOR KIMBLE COUNTY CONTINUES THROUGH 6 PM CDT THIS
EVENING.
 
THE FLOOD WARNING FOR MENARD COUNTY IS CANCELLED.
 
RUNOFF CONTINUES TO PLAGUE KIMBLE COUNTY TODAY AS SEVERAL ROADS REMAIN
IMPASSABLE. WATER WAS STILL RUNNING DEEP OVER RANCH ROADS 385...1674..1733 AND 2291 LATE THIS MORING AND THESE ROADS WERE CLOSED AT THOSE
PLACES. LIGHT RAIN HAS ADDED ALMOST A TENTH OF AN INCH OF MOISTURE TO
THE RUNOFF...AND THE CHANCE FOR MORE RAIN IS HIGH. OF COURSE...MORE
RAIN WILL CAUSE THE RUNOFF TO INCREASE BECAUSE THE GROUND IS SATURATED
AND ADDITIONAL RAINS WILL NOT SOAK IN. HEAVY RAIN COULD INUNDATE LOW
PLACES AND ROADBEDS RAPIDLY.
 
MOTORISTS TRAVELLING IN KIMBLE COUNTY SHOULD SELECT ALTERNATE ROUTES
AND NOT ATTEMPT TO CROSS THE FLOODED ROADS.
 
THE SHERIFF'S OFFICE IN MENARD COUNTY REPORTED THAT ALTHOUGH WATER IS
STILL FLOWING OVER SOME ROADS...ALL ROADS WERE PASSABLE AT LATE
MORNING.
 
 
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 AQUICKLY.  MOVE TO HIGHER GROUND.

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 17, 6:07 AM CDTFlash Flood WarningSJTKimble, Menard5 hr
Jul 17, 5:59 PM CDTFlash Flood WarningSJTKimble6 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.