Alert archive / Texas / Flash Flood Warnings in 1990

Flash Flood Warning 63, NWS San Angelo, TX

September 19, 1990Sutton County, Texas

NWS San Angelo, TX issued this flash flood warning at Sep 19, 1990, 5:45 AM CDT for Sutton County, Texas. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued
Sep 19, 1990, 5:45 AM CDT (10:45 UTC)
Expired
Sep 19, 1990, 11:45 AM CDT
In force
6 hr
Issued by
NWS San Angelo, TX
Area
Whole counties

County 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 00:00Z, 10.8 hours before the alert went out and 129 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 00:00Z on 1990-09-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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 00:00Z on 1990-09-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
1851 m above ground
0-6 km bulk shear
1 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
-8 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 191044
FFWSJT
TXC435-191645-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
545 AM CDT WED SEP 19 1990
 
THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL 1145 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES
 
IN  TEXAS
 
   ...SUTTON COUNTY
 
EARLY THIS WEDNESDAY MORNING WATER CONTINUES TO RUN OVER FARM TO
MARKET ROAD 189 AT THE SUTTON / VAL VERDE COUNTY LINE WHERE THE DRY
DEVILS RIVER CROSSES. FARM TO MARKET ROAD 864 IN NORTHEASTERN SUTTON
COUNTY ALSO REMAINS CLOSED THIS MORNING. THESE TWO ROADS MAY REMAIN
CLOSED TODAY AND POSSIBLY LONGER IF ADDITIONAL HEAVY RAINS FALL ON
ALREADY SATURATED GROUNDS IN THESE WATERSHEDS.
 
A TROPICAL DISTURBANCE MOVED NORTHWESTWARD INTO MEXICO OVERNIGHT AND
IS EXPECTED TO CONTINUE MOVING SLOWLY NORTHWEST TODAY SPREADING MOIST
AND UNSTABLE AIR UP THE RIO GRANDE RIVER INTO THE SOUTHERN AND SOUTH-
EASTERN CONCHO VALLEY TODAY THROUGH THURSDAY BRINGING ADDITIONAL HEAVY
RAINS TO THAT AREA ALREADY SATURATED BY 5 TO 10 INCHES OF RAIN DURING
THE PAST SEVERAL DAYS. IT IS EXPECTED THAT THE HEAVIEST RAINS WILL
FALL EAST OF SUTTON...SCHLEICHER...AND MENARD COUNTIES...BUT PERSONS
IN THE SOUTHERN AND EASTERN CONCHO VALLEY ARE URGED TO PLAN AHEAD...
ESPECIALLY IN AREAS THAT ARE ALREADY SATURATED...AND BE READY FOR
MORE RAIN.
 
PERSONS LIVING ALONG THE DRY DEVILS...NORTH LLANO...AND SAN SABA
RIVERS AND TRIBUTARIES OF THESE RIVER SHOULD REMAIN ALERT FOR RISING
WATERS AND BE PREPARED TO TAKE QUICK ACTION. THESE RIVER ARE ALREADY
RUNNING WELL ABOVE NORMAL AND ADDITIONAL RUNOFF COULD CAUSE RAPID
RISES ON THESE RIVERS.
 
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.  MOVE TO HIGHER GROUND.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 19, 11:47 AM CDTFlash Flood WarningSJTSutton6 hr
Sep 19, 5:39 PM CDTFlash Flood WarningSJTSutton4 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.