Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 47, NWS Austin/San Antonio, TX

July 5, 2003Frio County, Zavala County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jul 5, 2003, 10:24 AM CDT for Frio County, Zavala 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: Jul 5, 2003, 10:24 AM CDT (15:24 UTC)
Expired: Jul 5, 2003, 1:30 PM CDT
In force: 3 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, 3.4 hours before the alert went out and 139 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: 476 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 652 m above ground
0-6 km bulk shear: 5 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 4 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 051534
FFWSAT
TXC163-507-051830-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1024 AM CDT SAT JUL 5 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 130 PM CDT

* AT 1025 AM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY    
  RAIN FROM LA PRYOR TO BATESVILLE TO FRIO TOWN MOVING NORTH AT 15   
  MPH.  SHOWERS AND THUNDERSTORMS WERE PRODUCING RAINFALL RATES OF   
  1 TO 2 INCHES PER HOUR.  ADDITIONAL THUNDERSTORMS WERE MOVING      
  INTO THE AREA FROM THE SOUTH.  LAW ENFORCEMENT REPORTED            
  WATER OVER THE ROADS IN BATESVILLE.    

EXCESSIVE RUNOFF FROM THESE STORMS 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 IMMINENT. IT IS 
IMPORTANT TO KNOW WHERE YOU ARE RELATIVE TO STREAMS...RIVERS...OR 
CREEKS WHICH CAN BECOME KILLERS IN HEAVY RAINS. CAMPERS SHOULD AVOID 
CAMPING ALONG STREAMS OR CREEKS DURING THREATENING RAINS.

LAT...LON 2873 10002 2870 9943 2868 9888 2906 9889
          2906 10005

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 5, 6:50 AM CDT	Flash Flood Warning	EWX	Bexar	3 hr
Jul 5, 7:25 AM CDT	Flash Flood Warning	EWX	Medina, Uvalde	3 hr
Jul 5, 10:10 AM CDT	Flash Flood Warning	EWX	Medina, Uvalde	2 hr
Jul 5, 11:57 AM CDT	Flash Flood Warning	EWX	Medina, Uvalde	2 hr
Jul 5, 1:26 PM CDT	Flash Flood Warning	EWX	Frio, Zavala	3 hr
Jul 5, 1:59 PM CDT	Flash Flood Warning	EWX	Medina, Uvalde	2 hr
Jul 5, 2:52 PM CDT	Flash Flood Warning	EWX	Dimmit, Maverick	113 min
Jul 5, 3:58 PM CDT	Flash Flood Warning	EWX	Frio, Medina, Uvalde, Zavala	4 hr

Nearby

Flash Flood Warnings in Texas, 2003 Every flash flood warning in 2003

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.