Alert archive / Texas / Flash Flood Warnings in 2004

Flash Flood Warning 53, NWS Austin/San Antonio, TX

April 10, 2004Frio County, Zavala County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Apr 10, 2004, 4:57 PM CDT for Frio County, Zavala 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 as issued.

The facts

Issued: Apr 10, 2004, 4:57 PM CDT (21:57 UTC)
Expired: Apr 10, 2004, 7:00 PM CDT
In force: 2 hr
Issued by: NWS Austin/San Antonio, TX
Area: Counties, with a storm outline in the text

Counties Frio County, TX, Zavala County, TX

The nearest sounding before it

Del Rio, TX (KDRT), launched 12:00Z, 10.0 hours before the alert went out and 134 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: 2092 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 558 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 95 m²/s²
0-3 km storm-relative helicity: 106 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 3.7

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 102200
FFWSAT
TXC163-507-110000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
457 PM CDT SAT APR 10 2004

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  FRIO
  ZAVALA

* UNTIL 700 PM CDT

* AT 457 PM...WEATHER SERVICE DOPPLER RADAR INDICATED AREAS OF HEAVY 
 RAIN OVER ZAVALA AND FRIO COUNTIES...FROM SHOWERS AND
 THUNDERSTORMS...MOVING EAST AT 30 MPH.  PERIODS OF HEAVY RAIN
 ARE EXPECTED IN THE NEXT 1 TO 2 HOURS OVER PARTS OF ZAVALA AND
 FRIO COUNTIES. 

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.

LAT...LON 2904 10005 2869 10004 2871 9887 2903 9886

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 10, 11:21 AM CDT	Severe Thunderstorm Warning	EWX	Val Verde	39 min
Apr 10, 11:58 AM CDT	Severe Thunderstorm Warning	EWX	Val Verde	47 min
Apr 10, 12:25 PM CDT	Severe Thunderstorm Warning	EWX	Edwards	35 min
Apr 10, 12:44 PM CDT	Flash Flood Warning	EWX	Val Verde	3 hr
Apr 10, 1:32 PM CDT	Severe Thunderstorm Warning	EWX	Edwards	58 min
Apr 10, 2:27 PM CDT	Flash Flood Warning	EWX	Real	3 hr
Apr 10, 2:57 PM CDT	Severe Thunderstorm Warning	EWX	Maverick	63 min
Apr 10, 3:10 PM CDT	Severe Thunderstorm Warning	EWX	Kinney	50 min
Apr 10, 3:19 PM CDT	Severe Thunderstorm Warning	EWX	Bandera	56 min
Apr 10, 3:51 PM CDT	Severe Thunderstorm Warning	EWX	Kendall	54 min
Apr 10, 4:04 PM CDT	Severe Thunderstorm Warning	EWX	Uvalde	56 min
Apr 10, 4:09 PM CDT	Severe Thunderstorm Warning	EWX	Medina	66 min
Apr 10, 4:13 PM CDT	Severe Thunderstorm Warning	EWX	Guadalupe	47 min
Apr 10, 4:20 PM CDT	Severe Thunderstorm Warning	EWX	Caldwell	55 min
Apr 10, 4:25 PM CDT	Severe Thunderstorm Warning	EWX	Bexar	65 min
Apr 10, 4:27 PM CDT	Flash Flood Warning	EWX	Medina, Uvalde	3 hr
Apr 10, 4:33 PM CDT	Severe Thunderstorm Warning	EWX	Comal	57 min
Apr 10, 4:41 PM CDT	Flash Flood Warning	EWX	Bexar, Caldwell, Comal, Gonzales, Guadalupe	2 hr
Apr 10, 4:55 PM CDT	Severe Thunderstorm Warning	EWX	Zavala	65 min
Apr 10, 5:05 PM CDT	Flash Flood Warning	EWX	Wilson	115 min
Apr 10, 5:06 PM CDT	Severe Thunderstorm Warning	EWX	Guadalupe	54 min
Apr 10, 5:15 PM CDT	Flash Flood Warning	EWX	Fayette	2 hr
Apr 10, 5:19 PM CDT	Severe Thunderstorm Warning	EWX	Hays	41 min
Apr 10, 5:23 PM CDT	Severe Thunderstorm Warning	EWX	Fayette, Lavaca	52 min
Apr 10, 5:28 PM CDT	Tornado Warning	EWX	Fayette, Lavaca	47 min
Apr 10, 5:29 PM CDT	Flash Flood Warning	EWX	Atascosa	91 min
Apr 10, 5:32 PM CDT	Severe Thunderstorm Warning	EWX	Atascosa, Bexar	58 min
Apr 10, 5:35 PM CDT	Flash Flood Warning	EWX	Lavaca	100 min
Apr 10, 5:55 PM CDT	Flash Flood Warning	EWX	DeWitt, Karnes	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.