Alert archive / Texas / Flash Flood Warnings in 1991

Flash Flood Warning 27, NWS Austin/San Antonio, TX

July 21, 1991Real County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jul 21, 1991, 1:59 AM CDT for Real County, Texas. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Jul 21, 1991, 1:59 AM CDT (06:59 UTC)
Expired
Jul 21, 1991, 7:00 AM CDT
In force
5 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties

County Real County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 7.0 hours before the alert went out and 111 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 1991-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 417 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 1991-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 square meters per square second.193958Sfc1 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
417 J/kg
Mixed-layer CIN
-62 J/kg
Mixed-layer LCL
2491 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
52 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, Jul 20, 9:44 PM CDT, 4 hours 15 minutes before
TXZ054-210400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
945 PM CDT SAT JUL 20 1991

AT 945 PM A STRONG THUNDERSTORM WAS LOCATED IN THE SOUTHEAST CORNER
OF KINNEY COUNTY MOVING TOWARD THE NORTHWEST AT 10 TO 15 MPH.  THE
THUNDERSTORM SHOULD MOVE THROUGH THE BRACKETTVILLE AREA DURING THE
NEXT HOUR.  PEOPLE IN THE PATH OF THIS THUNDERSTORM SHOULD PREPARE
FOR BRIEF HEAVY RAINS...FREQUENT LIGHTNING...GUSTY WINDS AND POSSIBLE
HAIL.
Special weather statement, Jul 21, 12:55 AM CDT, 1 hour 4 minutes before
TXZ035-054-210700-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1250 AM CDT SUN JUL 21 1991

AT 1245 AM THIS MORNING...THUNDERSTORMS WITH HEAVY RAIN WITH LOCATED OVER
MUCH OF REAL COUNTY AND EXTREME WESTERN KERR COUNTY.  THE STRONGEST
THUNDERSTORM WAS LOCATED ON THE REAL EDWARDS COUNTY LINE NEAR BARKSDALE.
BREIF HEAVY RAIN...STRONG GUSTY WINDS...FREQUENT LIGHTNING...AND SOME SMALL
HAIL CAN BE EXPECTED WITH THESE THUNDERSTORMS DURING THE NEXT FEW HOURS.
ALL OF THESE THUNDERSTORMS WERE MOVING NORTHWEST AT 10 MPH.

PERSONS DRIVING AROUND REAL COUNTY SHOULD BE ON THE LOOK OUT FOR WATER
ACROSS LOW WATER CROSSINGS.  CAMPERS MAY WANT TO STAY A LITLLE FURTHER
AWAY FROM CREAKS AND STREAMS WHICH COULD BE ON THE RISE.

THESE THUNDERSTORMS SHOULD MOVE NORTHWARD OUT OF THE AREA DURING THE COUPLE
OF HOURS.

The office that day

Everything else NWS Austin/San Antonio, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 21, 2:28 AM CDTFlash Flood WarningEWXKerr5 hr

Nearby

Flash Flood Warnings in Texas, 1991Every flash flood warning in 1991

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.