Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 6, NWS Brownsville, TX

July 2, 2003Jim Hogg County, Texas

NWS Brownsville, TX issued this flash flood warning at Jul 2, 2003, 6:12 PM CDT for Jim Hogg 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 2, 2003, 6:12 PM CDT (23:12 UTC)
Expired
Jul 2, 2003, 9:00 PM CDT
In force
3 hr
Issued by
NWS Brownsville, TX
Area
Counties, with a storm outline in the text

County Jim Hogg County, TX

The radar

The Corpus Christi radar (KCRP), 142 km from the middle of the area, began a volume at 23:14 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

Corpus Christi, TX (KCRP), launched 12:00Z, 11.2 hours before the alert went out and 154 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, Corpus Christi, TX at 12:00Z on 2003-07-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1361 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 12:00Z on 2003-07-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.1939Sfc1 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
1361 J/kg
Mixed-layer CIN
-35 J/kg
Mixed-layer LCL
864 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
2 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 KBRO 022315
FFWBRO
TXC247-030200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE BROWNSVILLE TX
612 PM CDT WED JUL 2 2003

THE NATIONAL WEATHER SERVICE IN BROWNSVILLE HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CENTRAL JIM HOGG COUNTY IN DEEP SOUTH TEXAS

* UNTIL 900 PM CDT

* AT 606 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED   
  THUNDERSTORMS WITH VERY HEAVY RAINFALL NOW OCCURRING ACROSS        
  CENTRAL JIM HOGG COUNTY. DOPPLER RADAR ESTIMATED THAT FROM 3 TO 6  
  INCHES OF RAIN HAVE FALLEN DURING THE PAST HOUR AROUND 5 MILES     
  SOUTHEAST OF THE TOWN OF RANDADO.  THIS STORM WAS MOVING SLOWLY    
  NORTH AT AROUND 5 MPH.  

* SLOW MOVING THUNDERSTORMS ARE PRODUCING TORRENTIAL RAINFALL IN THE
  WARNED AREA. RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH
  FLOODING TO OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING
  INCLUDE...RANDADO.

FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD RELATED DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED BRIDGES...
DIPS...OR LOW WATER CROSSINGS. NEVER TRY TO CROSS A FLOWING STREAM...
EVEN A SMALL ONE...ON FOOT. TO ESCAPE RISING WATER MOVE UP TO HIGHER
GROUND.

LAT...LON 2726 9863 2697 9862 2696 9895 2725 9894

$$

SPEECE
4 follow-up statements
000 
WGUS74 KBRO 030041
FFSBRO
TXC247-030200-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
740 PM CDT WED JUL 2 2003

...FLASH FLOOD WARNING CONTINUES UNTIL 900 PM CDT FOR CENTRAL JIM
HOGG COUNTY...

AT 740 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THAT HEAVY RAIN PRODUCING SHOWERS AND THUNDERSTORMS CONTINUE OVER 
CENTRAL JIM HOGG COUNTY.  THEREFORE...THE FLASH FLOOD WARNING FOR 
CENTRAL JIM HOGG COUNTY WILL REMAIN IN EFFECT UNTIL 9 PM.   

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.

LAT...LON 2727 9863 2698 9862 2696 9895 2725 9895

$$

SPEECE
000 
WGUS74 KBRO 030051
FFSBRO
TXC247-030200-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
749 PM CDT WED JUL 2 2003

...FLASH FLOOD WARNING CONTINUES UNTIL 900 PM CDT FOR SOUTHWESTERN
JIM HOGG COUNTY...

AT 749 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED 
THUNDERSTORMS WITH VERY HEAVY RAINFALL OCCURRING ACROSS SOUTHWESTERN 
JIM HOGG COUNTY. DOPPLER RADAR ESTIMATED THAT FROM 2 TO 4 INCHES OF 
RAIN HAVE OCCURRED OVER SOUTHWESTERN JIM HOGG COUNTY SINCE 7 PM.  

RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLOODING TO OCCUR... 
ESPECIALLY ALONG SMALL STREAMS AND NEAR LOW WATER CROSSINGS. SOME 
LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...GUERRA.

MOST 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 2696 9862 2679 9861 2679 9895 2695 9896

$$

SPEECE
000 
WGUS74 KBRO 030151
FFSBRO
TXC247-030300-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
851 PM CDT WED JUL 2 2003

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR CENTRAL JIM HOGG
COUNTY HAS BEEN CANCELLED...

THE EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. 
STREAMS AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING 
TO RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LIGHT TO MODERATE SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER 
CENTRAL JIM HOGG COUNTY THROUGH 930 PM...BUT ARE BEGINNING TO 
DISSIPATE.  THE SHOWERS AND THUNDERSTORMS WILL GRADUALLY TAPER OFF 
BY MIDNIGHT.  

LAT...LON 2726 9863 2696 9862 2696 9895 2725 9895

$$

SPEECE
000 
WGUS74 KBRO 030157
FFSBRO
TXC247-030230-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE BROWNSVILLE TX
854 PM CDT WED JUL 2 2003

...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR SOUTHWESTERN JIM
HOGG COUNTY HAS BEEN ALLOWED TO EXPIRE...

EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED AREA. STREAMS
AND CREEKS IN THE WARNED AREA HAVE RECEDED OR WERE BEGINNING TO
RECEDE...ENDING THE FLOOD THREAT. IF FLOODING HAS BEEN OBSERVED...
PLEASE REPORT IT TO YOUR LOCAL LAW ENFORCEMENT AGENCY.

LIGHT TO MODERATE SHOWERS AND THUNDERSTORMS WILL CONTINUE OVER JIM 
HOGG COUNTY THROUGH 930 PM...BUT ARE BEGINNING TO DISSIPATE.  THE 
SHOWERS AND THUNDERSTORMS WILL GRADUALLY TAPER OFF BY MIDNIGHT.

LAT...LON 2695 9862 2678 9862 2679 9895 2694 9895

$$

SPEECE

The office that day

Everything else NWS Brownsville, TX issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 2, 6:03 PM CDTSevere Thunderstorm WarningBROJim Hogg57 min
Jul 2, 6:39 PM CDTSevere Thunderstorm WarningBROJim Hogg, Starr51 min

Nearby

Flash Flood Warnings in Texas, 2003Every 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; radar from the NEXRAD Level II archive.