Alert archive / Texas / Flash Flood Warnings in 2004

Flash Flood Warning 45, NWS Austin/San Antonio, TX

April 6, 2004Kerr County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Apr 6, 2004, 8:04 AM CDT for Kerr County, Texas. It was in force for 116 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Apr 6, 2004, 8:04 AM CDT (13:04 UTC)
Expired
Apr 6, 2004, 10:00 AM CDT
In force
116 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Kerr County, TX

The radar

The Austin/San Antonio radar (KEWX), 110 km from the middle of the area, began a volume at 13:07 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 1.1 hours before the alert went out and 180 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 2004-04-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2004-04-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -111 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1164 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
-111 m²/s²
0-3 km storm-relative helicity
-7 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 061305
FFWSAT
TXC265-061500-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
804 AM CDT TUE APR 6 2004

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 1000 AM CDT

* AT 804 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY 
  RAIN CONTINUES OVER THE EASTERN HALF OF KERR COUNTY. AFTER 
  RECEIVING 2 TO 4 INCHES ACROSS THE COUNTY SINCE MIDNIGHT...ANOTHER 
  HALF INCH OF RAIN IS EXPECTED TO EXACERBATE AN ALREADY SERIOUS     
  FLOODING SITUATION THROUGH 10 AM. 

TRAVEL IN KERR COUNTY IS STRONGLY DISCOURAGED THIS MORNING.

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 2994 9921 2982 9896 3013 9895 3014 9927

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 5, 9:37 PM CDTFlash Flood WarningEWXVal Verde3 hr
Apr 5, 9:37 PM CDTFlash Flood WarningEWXKendall, Val Verde3 hr
Apr 5, 10:09 PM CDTSevere Thunderstorm WarningEWXEdwards, Val Verde66 min
Apr 5, 10:43 PM CDTFlash Flood WarningEWXEdwards3 hr
Apr 5, 11:19 PM CDTSevere Thunderstorm WarningEWXEdwards, Kerr, Real56 min
Apr 6, 12:14 AM CDTSevere Thunderstorm WarningEWXKerr31 min
Apr 6, 12:35 AM CDTSevere Thunderstorm WarningEWXKerr10 min
Apr 6, 1:12 AM CDTSevere Thunderstorm WarningEWXGillespie, Kerr63 min
Apr 6, 1:38 AM CDTFlash Flood WarningEWXEdwards, Kerr, Kinney, Real, Val Verde4 hr
Apr 6, 2:16 AM CDTSevere Thunderstorm WarningEWXGillespie59 min
Apr 6, 2:35 AM CDTFlash Flood WarningEWXMaverick3 hr
Apr 6, 2:48 AM CDTSevere Thunderstorm WarningEWXBlanco57 min
Apr 6, 3:04 AM CDTFlash Flood WarningEWXUvalde3 hr
Apr 6, 3:26 AM CDTSevere Thunderstorm WarningEWXHays, Travis64 min
Apr 6, 3:53 AM CDTFlash Flood WarningEWXGillespie3 hr
Apr 6, 4:08 AM CDTSevere Thunderstorm WarningEWXWilliamson67 min
Apr 6, 5:05 AM CDTFlash Flood WarningEWXBandera3 hr
Apr 6, 5:41 AM CDTFlash Flood WarningEWXKerr, Real2 hr
Apr 6, 6:14 AM CDTFlash Flood WarningEWXBlanco, Kendall, Travis, Williamson3 hr
Apr 6, 6:59 AM CDTFlash Flood WarningEWXBurnet2 hr
Apr 6, 9:27 AM CDTFlash Flood WarningEWXTravis, Williamson108 min
Apr 6, 9:30 AM CDTFlash Flood WarningEWXKendall105 min
Apr 6, 11:10 AM CDTFlash Flood WarningEWXTravis, Williamson110 min

Nearby

Flash Flood Warnings in Texas, 2004Every flash flood warning in 2004

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; radar from the NEXRAD Level II archive.