Alert archive / Texas / Flash Flood Warnings in 2001

Flash Flood Warning 68, NWS Austin/San Antonio, TX

September 5, 2001Real County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Sep 5, 2001, 1:51 PM CDT 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
Sep 5, 2001, 1:51 PM CDT (18:51 UTC)
Expired
Sep 5, 2001, 4:45 PM CDT
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, 6.9 hours before the alert went out and 113 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 2001-09-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 392 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Del Rio, TX at 12:00Z on 2001-09-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 121 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
392 J/kg
Mixed-layer CIN
-126 J/kg
Mixed-layer LCL
1047 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
121 m²/s²
0-3 km storm-relative helicity
143 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.5

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
WGUS54 KEWX 051855
FFWSAT
TXC385-052145-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
151 PM CDT WED SEP 5 2001

THE NATIONAL WEATHER SERVICE HAS ISSUED A

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

* UNTIL 445 PM CDT

* AT 151 PM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
  BETWEEN RIO FRIO AND LEAKEY THEN NORTH ALONG THE FRIO 
  RIVER...MOVING NRTHEAST AT 10 MPH.

THIS RAINFALL WILL CAUSE SOME RISES ALONG THE FRIO RIVER NORTH OF 
RIO FRIO.  HIGHWAYS 337 AND 83 WILL EXPERIENCE FLOODING IN 
SPOTS...ESPECIALLY THOSE ALONG THE FRIO RIVER.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR OCCURRING.
IF YOU ARE IN THE WARNING AREA MOVE TO HIGHER GROUND IMMEDIATELY.
RESIDENTS LIVING ALONG STREAMS AND CREEKS SHOULD TAKE IMMEDIATE 
PRECAUTIONS TO PROTECT LIFE AND PROPERTY. DO NOT CROSS SWIFTLY 
FLOWING WATERS OR WATERS OF UNKNOWN DEPTH BY FOOT OR BY AUTOMOBILE. 
IF YOUR VEHICLE STALLS, ABANDON IT IMMEDIATELY AND SEEK HIGHER 
GROUND.


LAT...LON 3006 9994 2965 9994 2966 9965 3008 9972

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 5, 9:33 AM CDTFlash Flood WarningEWXLavaca4 hr
Sep 5, 12:23 PM CDTFlash Flood WarningEWXDeWitt, Gonzales3 hr
Sep 5, 12:41 PM CDTFlash Flood WarningEWXCaldwell, Comal, Guadalupe, Hays, Travis, Williamson3 hr
Sep 5, 12:59 PM CDTFlash Flood WarningEWXLavaca3 hr
Sep 5, 1:34 PM CDTFlash Flood WarningEWXKarnes3 hr
Sep 5, 2:44 PM CDTFlash Flood WarningEWXBastrop, Fayette, Lee3 hr
Sep 5, 2:50 PM CDTFlash Flood WarningEWXWilson115 min
Sep 5, 3:01 PM CDTFlash Flood WarningEWXBandera, Kerr3 hr
Sep 5, 3:21 PM CDTFlash Flood WarningEWXComal, Gonzales, Guadalupe3 hr
Sep 5, 4:39 PM CDTFlash Flood WarningEWXKarnes, Wilson4 hr
Sep 5, 5:29 PM CDTFlash Flood WarningEWXBlanco, Kendall3 hr
Sep 5, 5:57 PM CDTFlash Flood WarningEWXBandera2 hr
Sep 5, 6:03 PM CDTFlash Flood WarningEWXMedina2 hr
Sep 5, 6:49 PM CDTFlash Flood WarningEWXBexar, Comal2 hr

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.