Alert archive / Texas / Flash Flood Warnings in 2001

Flash Flood Warning 105, NWS Austin/San Antonio, TX

November 19, 2001Real County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Nov 19, 2001, 11:00 AM CST for Real County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.

The facts

Issued
Nov 19, 2001, 11:00 AM CST (17:00 UTC)
Expired
Nov 19, 2001, 2:00 PM CST
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Real County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 5.0 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 12:00Z on 2001-11-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 255 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 2001-11-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
255 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
605 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
77 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 
WGUS54 KEWX 191702
FFWSAT
TXC385-192000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1100 AM CST MON NOV 19 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  REAL

* UNTIL 200 PM CST

* AT 1057 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY
  RAIN WITH RAINFALL RATES OF AROUND AN INCH PER HOUR...13 MILES
  NORTH OF LEAKEY...MOVING EAST AT 5 TO 10 MPH.

* THIS WARNING INCLUDES LOCATIONS IN AND AROUND...
  LEAKEY

AREAS OVER THE UPPER FRIO AND NUECES RIVERS AND ALONG HIGHWAYS 
336...83...AND 337 WILL LIKELY SEE SOME FLASH FLOODING AS THESE 
RAINS CONTINUE FOR THE NEXT TWO HOURS.

EXCESSIVE RUNOFF FROM THESE RAINS WILL CAUSE FLASH FLOODING OF SMALL 
CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND 
ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

LAT...LON 3007 9998 2964 10001 2964 9965 3009 9972

Nearby

Flash Flood Warnings in Texas, 2001Every flash flood warning in 2001

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.