Alert archive / Texas / Flash Flood Warnings in 1990

Flash Flood Warning 68, NWS San Angelo, TX

September 20, 1990Sutton County, Texas

NWS San Angelo, TX issued this flash flood warning at Sep 20, 1990, 9:18 PM CDT for Sutton County, Texas. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Sep 20, 1990, 9:18 PM CDT (02:18 UTC)
Expired
Sep 21, 1990, 9:15 AM CDT
In force
12 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, 2.3 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 1990-09-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 759 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 1990-09-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 32 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
759 J/kg
Mixed-layer CIN
-30 J/kg
Mixed-layer LCL
1194 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
32 m²/s²
0-3 km storm-relative helicity
71 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 210221
FFWSJT
TXC435-211415-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANGELO TX
918 PM CDT THU SEP 20 1990
 
THE NATIONAL WEATHER SERVICE IN SAN ANGELO HAS ISSUED A
FLOOD WARNING EFFECTIVE UNTIL  915 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES
 
IN  TEXAS
 
   ...SUTTON COUNTY
 
RUNOFF FROM RAINS THE LAST FEW DAYS CONTINUES TO KEEP A COUPLE OF FARM
ROADS IN SUTTON COUNTY CLOSED. FM 864 IN EASTERN SUTTON COUNTY AND FM
189 AT THE DEVILS RIVER CROSSING ON THE SUTTON/VAL VERDE COUNTY LINE
ARE STILL FLOODED OUT. THESE ROADS WILL REMAIN CLOSED TONIGHT.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.
 
KEEP LISTENING FOR THE LATEST WEATHER INFORMATION.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Sep 20, 5:21 PM CDT, 3 hours 57 minutes before
TXZ012-015-019-024-029-030-210115-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABILENE TX
515 PM CDT THU SEP 20 1990

HEAVY RAINFALL OVER PORTIONS OF NOLAN AND TAYLOR COUNTIES HAS CAUSED
FLOODING ALONG ELM CREEK...NEAR AND ABOVE LAKE ABILENE. AT 5 PM CDT
ABILENE CITY OFFICIALS REPORTED ELM CREEK OVERFLOWING ITS BANKS ABOVE
LAKE ABILENE...AND COVERING FARM ROAD 89 NEAR THE LAKE. FM 89 WILL BE
CLOSED NEAR LAKE ABILENE UNTIL FURTHER NOTICE.

LAKE ABILENE IS CURRENTLY OVERFLOWING THE DRAW-DOWN TUBE (NOT THE
SPILLWAY) BY ONE FOOT AND THE LAKE APPEARS TO HAVE CRESTED NEAR THAT
POINT. NO SERIOUS FLOODING IS ANTICIPATED BETWEEN LAKE ABILENE AND THE
CITY OF ABILENE UNLESS ADDITIONAL HEAVY RAINS FALL ON THE ELM CREEK
WATERSHED.

ABILENE CITY OFFICIALS ARE CLOSELY MONITORING THE LAKE ABILENE/ELM
CREEK SITUATION.

ADDITIONAL SHOWERS AND THUNDERSTORMS ARE EXPECTED ACROSS THE BIG
COUNTRY TONIGHT AND FRIDAY AND PERSONS LIVING NEAR..$.OR WITH INTERESTS
ALONG...ELM CREEK SHOULD STAY ABREAST OF DEVELOPING WEATHER CONDITIONS.

STAY TUNED TO RADIO...TV OR NOAA WEATHER RADIO FOR THE LATEST WEATHER
INFORMATION.
Special weather statement, Sep 20, 5:32 PM CDT, 3 hours 46 minutes before
TXC399-210130-

URBAN AND SMALL STREAM FLOODING STATEMENT
NATIONAL WEATHER SERVICE SAN ANGELO TX
530 PM CDT THU SEP 20 1990

THE HEAVY RAINS THIS MORNING CAUSED THE CLOSURE OF SEVERAL ROADS IN
RUNNELS COUNTY...HOWEVER...LATE THIS AFTERNOON ONLY FM 384 SOUTH OF
WINGATE WAS CLOSED.

MORE RAIN IS EXPECTED TONIGHT AS THE AIR OVER THE CONCHO VALLEY IS
MOISTURE-LADEN AND DISTURBANCES IN THE UPPER ATMOSPHERE CROSSING OVER
WILL TRIGGER SHOWERS AND THUNDERSTORMS. THE SEVERAL INCHES OF RAIN
THAT FELL OVER RUNNELS COUNTY THIS MORNING SATURATED THE GROUND...
SO...ADDTIONAL HEAVY RAINS WILL RUNOFF AND COULD RESULT IN FLASH
FLOODING.

PERSONS IN THE CONCHO VALLEY SHOULD WATCH FOR HEAVY RAINS IN THEIR
AREA AND BE READY TO MOVE UP TO SAFETY IF WATER BEGINS TO RISE.
MOTORISTS SHOULD AVOID FORDING LOW WATER CROSSINGS WITH FAST RUNNING
WATER FLOWING OVER AND DO NOT ENTER WATER OF AN UNKNOWN DEPTH.

KEEP LISTENING FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Sep 20, 5:45 PM CDT, 3 hours 33 minutes before
TXZ012-015-019-024-029-030-210200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABILENE TX
540 PM CDT THU SEP 20 1990

AT 540 PM CDT NUMEROUS RAINSHOWERS AND A FEW THUNDERSTORMS WERE OVER
THE WESTERN AND NORTHERN PORTIONS OF THE BIG COUNTRY. THE SHOWERS AND
STORMS WERE ALONG AND NORTHWEST OF A LINE FROM THROCKMORTON TO ANSON
TO SWEETWATER TO NEAR STERLING CITY. HEAVIEST RAINFALL WAS SOUTHEAST
OF STAMFORD AND NORTH OF STERLING CITY...IN MITCCHELL COUNTY.

MOVEMENT WAS NORTHEAST AT 15 MPH.

STAY TUNED TO RADIO...TV OR NOAA WEATHER RADIO FOR THE LATEST WEATHER
INFORMATION.

STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST WEATHER INFORMATION.
Special weather statement, Sep 20, 5:46 PM CDT, 3 hours 32 minutes before
TXZ012-015-019-024-029-030-210200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABILENE TX
540 PM CDT THU SEP 20 1990

AT 540 PM CDT NUMEROUS RAINSHOWERS AND A FEW THUNDERSTORMS WERE OVER
THE WESTERN AND NORTHERN PORTIONS OF THE BIG COUNTRY. THE SHOWERS AND
STORMS WERE ALONG AND NORTHWEST OF A LINE FROM THROCKMORTON TO ANSON
TO SWEETWATER TO NEAR STERLING CITY. HEAVIEST RAINFALL WAS SOUTHEAST
OF STAMFORD AND NORTH OF STERLING CITY...IN MITCFHELL COUNTY.

MOVEMENT WAS NORTHEAST AT 15 MPH.

STAY TUNED TO RADIO...TV OR NOAA WEATHER RADIO FOR THE LATEST WEATHER
INFORMATION.
Special weather statement, Sep 20, 7:19 PM CDT, 1 hour 59 minutes before
TXZ012-015-019-024-029-030-210315-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ABILENE TX
715 PM CDT THU SEP 20 1990

A FLASH FLOOD WATCH IS IN EFFECT THROUGH TONIGHT FOR PERSONS IN SCURRY
...MITCHELL...FISHER AND NOLAN COUNTIES OF THE BIG COUNTRY.

AT 710 PM CDT NUMEROUS RAINSHOWERS AND A FEW THUNDERSTORMS WERE ALONG
AND NORTHWEST OF A LINE FROM NEAR THROCKMORTON TO ANSON TO MERKEL TO
BLACKWELL TO NEAR STERLING CITY. HEAVIEST RAINFALL WAS NEAR ASPERMONT
...AND NORTH OF STERLING CITY IN SOUTHERN MITCHELL COUNTY.

MOVEMENT WAS NORTHEAST AT 15 MPH.

PERSONS IN OR CLOSE TO THE FLOOOD WATCH AREA SHOULD REMAIN ALERT FOR
RISING WATER AND BE READY TO TAKE IMMEDIATE ACTION IF FLOODING IS
SIGHTED OR REPORTED.
 STAY TUNED TO RADIO...TV OR NOAA WEATHER RADIO FOR THE LATEST WEATHER
INFORMATION AND POSSIBLE WARNINGS.

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 21, 4:55 PM CDTFlash Flood WarningSJTCoke, Runnels, Tom Green2 hr
Sep 21, 4:55 PM CDTFlash Flood WarningSJTSterling2 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.