Alert archive / Texas / Flash Flood Warnings in 2000

Flash Flood Warning 69, NWS Austin/San Antonio, TX

November 3, 2000Williamson County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Nov 3, 2000, 3:39 PM CST for Williamson County, Texas. It was in force for 2 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 3, 2000, 3:39 PM CST (21:39 UTC)
Expired
Nov 3, 2000, 6:00 PM CST
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Whole counties; the outline is the Mesonet’s reconstruction

County Williamson County, TX

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 9.7 hours before the alert went out and 245 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, Fort Worth, TX at 12:00Z on 2000-11-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 27 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, Fort Worth, TX at 12:00Z on 2000-11-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 175 square meters per square second.1939587897Sfc1 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
27 J/kg
Mixed-layer CIN
-132 J/kg
Mixed-layer LCL
652 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
175 m²/s²
0-3 km storm-relative helicity
131 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 032139
FFWEWX
TXC491-040000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
339 PM CST FRI NOV 3 2000

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WILLIAMSON COUNTY

* UNTIL 600 PM CST

* AT 335 PM CST...WEATHER SERVICE DOPPLER RADAR INDICATED ONLY LIGHT
  RAIN OVER WILLIAMSON COUNTY.  HOWEVER...MANY ROADS AND
  INTERSECTIONS WERE CLOSED...INCLUDING ALL ACCESS ROADS
  ALONG INTERSTATE-35 BETWEEN HIGHWAY 79 AND FM 3406.

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.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES. DO NOT
ATTEMPT TO CROSS BRIDGES...DIPS...OR OTHER LOW SPOTS IF WATER COVERS
THE ROADWAY. NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.


LAT...LON 3069 9803 3057 9783 3051 9774 3053 9739
          3074 9732 3090 9782

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 2, 6:03 PM CSTTornado WarningEWXBlanco, Comal, Hays57 min
Nov 2, 7:12 PM CSTFlash Flood WarningEWXBlanco, Comal, Hays, Kendall4 hr
Nov 2, 10:45 PM CSTFlash Flood WarningEWXBastrop, Bexar, Blanco, Caldwell, Comal, Guadalupe and 4 more6 hr
Nov 3, 12:07 AM CSTFlash Flood WarningEWXBandera, Medina, Uvalde6 hr
Nov 3, 12:50 AM CSTFlash Flood WarningEWXKerr4 hr
Nov 3, 1:06 AM CSTFlash Flood WarningEWXEdwards, Real4 hr
Nov 3, 1:14 AM CSTFlash Flood WarningEWXGillespie4 hr
Nov 3, 4:20 AM CSTFlash Flood WarningEWXVal Verde3 hr
Nov 3, 7:42 AM CSTFlash Flood WarningEWXEdwards, Val Verde3 hr
Nov 3, 9:48 AM CSTFlash Flood WarningEWXTravis3 hr
Nov 3, 10:56 AM CSTFlash Flood WarningEWXEdwards, Real, Uvalde3 hr
Nov 3, 11:43 AM CSTFlash Flood WarningEWXBastrop3 hr
Nov 3, 12:02 PM CSTFlash Flood WarningEWXKerr3 hr
Nov 3, 2:04 PM CSTFlash Flood WarningEWXEdwards, Real, Val Verde4 hr
Nov 3, 2:55 PM CSTFlash Flood WarningEWXGillespie, Kerr, Llano3 hr
Nov 3, 3:22 PM CSTFlash Flood WarningEWXTravis3 hr
Nov 3, 4:57 PM CSTFlash Flood WarningEWXAtascosa, Bastrop, Caldwell, Fayette, Gonzales, Guadalupe and 3 more4 hr
Nov 3, 5:58 PM CSTFlash Flood WarningEWXLlano4 hr

Nearby

Flash Flood Warnings in Texas, 2000Every flash flood warning in 2000

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.