Alert archive / Texas / Flash Flood Warnings in 2004

Flash Flood Warning 66, NWS Austin/San Antonio, TX

April 11, 2004Kinney County, Maverick County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Apr 11, 2004, 3:00 AM CDT for Kinney County, Maverick 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 as issued.

The facts

Issued: Apr 11, 2004, 3:00 AM CDT (08:00 UTC)
Expired: Apr 11, 2004, 6:00 AM CDT
In force: 3 hr
Issued by: NWS Austin/San Antonio, TX
Area: Counties, with a storm outline in the text

Counties Kinney County, TX, Maverick County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 8.0 hours before the alert went out and 51 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 828 m above ground
0-6 km bulk shear: 55 kt
0-1 km storm-relative helicity: -98 m²/s²
0-3 km storm-relative helicity: 271 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 110803
FFWSAT
TXC271-323-111100-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
300 AM CDT SUN APR 11 2004

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  KINNEY
  MAVERICK

* UNTIL 600 AM CDT

* AT 300 AM...WEATHER SERVICE DOPPLER RADAR SHOWED AN AREA OF SHOWERS
AND THUNDERSTORMS WITH HEAVY RAIN BEGINNING TO MOVE OVER KINNEY AND 
MAVERICK COUNTIES FROM THE SOUTHWEST.  SHOWERS AND THUNDERSTORMS WERE
MOVING NORTHEAST AT 40 MPH.  LOCALLY HEAVY RAIN IS LIKELY WITH THESE
SHOWERS AND THUNDERSTORMS OVER PARTS OF KINNEY AND MAVERICK COUNTIES
IN THE NEXT 1 TO 2 HOURS. 

SINCE HEAVY RAINS HAVE FALLEN IN THESE AREAS DURING THE PAST 
WEEK...IT WILL NOT TAKE AS MUCH RAIN TO CAUSE FLOODING AT LOW WATER 
CROSSINGS.  

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS AND STREAMS AND OTHER
LOW LYING AREAS ARE SUBJECT TO FLASH FLOODING.

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 2885 10054 2831 10019 2955 10018 2957 10060
          2918 10068

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 7:04 PM CDT	Flash Flood Warning	EWX	Lavaca	56 min
Apr 10, 8:23 PM CDT	Flash Flood Warning	EWX	DeWitt, Lavaca	3 hr
Apr 10, 9:54 PM CDT	Severe Thunderstorm Warning	EWX	Maverick	51 min
Apr 10, 10:38 PM CDT	Severe Thunderstorm Warning	EWX	Bexar, Guadalupe	67 min
Apr 10, 10:57 PM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Frio	63 min
Apr 10, 11:01 PM CDT	Severe Thunderstorm Warning	EWX	Dimmit	59 min
Apr 10, 11:29 PM CDT	Severe Thunderstorm Warning	EWX	Wilson	61 min
Apr 10, 11:58 PM CDT	Severe Thunderstorm Warning	EWX	Karnes	62 min
Apr 11, 12:48 AM CDT	Flash Flood Warning	EWX	DeWitt	3 hr
Apr 11, 1:02 AM CDT	Flash Flood Warning	EWX	Uvalde	3 hr
Apr 11, 1:17 AM CDT	Flash Flood Warning	EWX	Lavaca	3 hr
Apr 11, 1:44 AM CDT	Flash Flood Warning	EWX	Fayette	2 hr
Apr 11, 1:57 AM CDT	Flash Flood Warning	EWX	Bandera, Medina, Real	3 hr
Apr 11, 3:50 AM CDT	Flash Flood Warning	EWX	Uvalde	2 hr

Nearby

Flash Flood Warnings in Texas, 2004 Every 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.