Alert archive / Texas / Flash Flood Warnings in 2005

Flash Flood Warning 4, NWS Austin/San Antonio, TX

March 19, 2005DeWitt County, Karnes County, Lavaca County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Mar 19, 2005, 7:52 PM CST for DeWitt County, Karnes County, Lavaca 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
Mar 19, 2005, 7:52 PM CST (01:52 UTC)
Expired
Mar 19, 2005, 10:45 PM CST
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties DeWitt County, TX, Karnes County, TX, Lavaca County, TX

The radar

The Austin/San Antonio radar (KEWX), 89 km from the middle of the area, began a volume at 01:52 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 00:00Z, 1.9 hours before the alert went out and 150 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 00:00Z on 2005-03-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1536 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 00:00Z on 2005-03-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 67 square meters per square second.1939587897Sfc1 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
1536 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
714 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
115 m²/s²
Significant tornado parameter
0.9
Supercell composite
4.3

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 200152
FFWEWX
TXC123-255-285-200445-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
752 PM CST SAT MAR 19 2005

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  LAVACA
  DEWITT
  KARNES

* UNTIL 1045 PM CST

* AT 747 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE YOAKUM...WESTHOFF...SUBLIME...
  SHINER...MOULTON...HALLETTSVILLE...GILLETT...EZZELL AND CUERO.

HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...
COUNTRY ROADS...AND FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

FLASH FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED AREAS. A LITTLE
OVER A FOOT OF WATER CAN CARRY AWAY MOST CARS AND TRUCKS. TURN AROUND
DONT DROWN.

LAT...LON 2871 9801 2877 9795 2872 9784 2888 9760
      2900 9745 2891 9731 2918 9703 2909 9694
      2936 9663 2963 9691 2962 9716 2935 9723
      2910 9762 2921 9774 2889 9817

$$
3 follow-up statements
000 
WGUS74 KEWX 200239
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
835 PM CST SAT MAR 19 2005

TXC123-255-285-200445-
LAVACA TX-DEWITT TX-KARNES TX-
835 PM CST SAT MAR 19 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 1045 PM CST FOR KARNES...
DEWITT AND LAVACA COUNTIES...

AT 830 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE HEAVY THUNDERSTORMS ENCOMPASSING MUCH OF THE WARNED AREA. 
RAINFALL RATES ESTIMATED NEAR 2 INCHES PER HOUR WERE OBSERVED BY 
DOPPLER RADAR AT 835 PM.  

LOCATIONS IN THE WARNING INCLUDE YOAKUM...WESTHOFF...SUBLIME...
SHINER...MOULTON...HALLETTSVILLE...GILLETT AND EZZELL.

HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL CREEKS AND STREAMS...
COUNTRY ROADS...AND FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND. DO NOT STAY IN FLOOD PRONE AREAS.

FLASH FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED AREAS. A LITTLE
OVER A FOOT OF WATER CAN CARRY AWAY MOST CARS AND TRUCKS. TURN AROUND
DONT DROWN.

REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.

LAT...LON 2871 9801 2877 9795 2872 9784 2888 9760
      2900 9745 2891 9731 2918 9703 2909 9694
      2936 9663 2963 9691 2962 9716 2935 9723
      2910 9762 2921 9774 2889 9817

$$
000 
WGUS74 KEWX 200403
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1003 PM CST SAT MAR 19 2005

TXC123-255-285-200445-
LAVACA TX-DEWITT TX-KARNES TX-
1003 PM CST SAT MAR 19 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 1045 PM CST FOR KARNES...
DEWITT AND LAVACA COUNTIES...

AT 1000 PM CST...RAINS HAVE MOVED EAST OF THE WARNED AREA. 
HOWEVER...FLOODING WILL CONTINUE FOR THE NEXT HOUR OR SO DUE TO 
EARLIER HEAVY RAINS. 

LOCATIONS IN THE WARNING INCLUDE CUERO...YOAKUM...WESTHOFF...
SUBLIME...SHINER...MOULTON...HALLETTSVILLE...GILLETT AND EZZELL.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
UP TO HIGHER GROUND. DO NOT STAY IN FLOOD PRONE AREAS.

FLASH FLOODING IS OCCURRING OR IS IMMINENT. MOST FLOOD DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS WATER COVERED AREAS. A LITTLE
OVER A FOOT OF WATER CAN CARRY AWAY MOST CARS AND TRUCKS. TURN AROUND
DONT DROWN.

REPORT FLASH FLOODING TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY
TO THE NATIONAL WEATHER SERVICE.

LAT...LON 2871 9801 2877 9795 2872 9784 2888 9760
      2900 9745 2891 9731 2918 9703 2909 9694
      2936 9663 2963 9691 2962 9716 2935 9723
      2910 9762 2921 9774 2889 9817

$$
000 
WGUS74 KEWX 200450
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1048 PM CST SAT MAR 19 2005

TXC123-255-285-200458-
LAVACA TX-DEWITT TX-KARNES TX-
1048 PM CST SAT MAR 19 2005

...THE FLASH FLOOD WARNING FOR KARNES...DEWITT AND LAVACA COUNTIES
EXPIRED AT 1045 PM CST...

AT 1045 PM CST...RAINS HAVE ENDED ACROSS KARNES...DEWITT AND LAVACA 
COUNTIES.  THE THREAT FOR FLASH FLOODING HAS ENDED AND THE FLASH 
FLOOD WARNING WAS LEFT TO EXPIRE. 

HOWEVER...MINOR FLOODING OF LOW LYING AREAS AND SMALL STREAMS CAN BE 
EXPECTED FOR THE NEXT HOUR OR SO. 

LAT...LON 2871 9801 2877 9795 2872 9784 2888 9760
      2900 9745 2891 9731 2918 9703 2909 9694
      2936 9663 2963 9691 2962 9716 2935 9723
      2910 9762 2921 9774 2889 9817

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 19, 6:01 PM CSTSevere Thunderstorm WarningEWXLee44 min
Mar 19, 7:01 PM CSTSevere Thunderstorm WarningEWXWilson59 min
Mar 19, 7:06 PM CSTSevere Thunderstorm WarningEWXBexar54 min
Mar 19, 7:27 PM CSTFlash Flood WarningEWXGonzales3 hr
Mar 19, 7:37 PM CSTSevere Thunderstorm WarningEWXLavaca53 min
Mar 19, 7:41 PM CSTSevere Thunderstorm WarningEWXKarnes64 min
Mar 19, 8:28 PM CSTSevere Thunderstorm WarningEWXLavaca62 min
Mar 19, 8:45 PM CSTSevere Thunderstorm WarningEWXDeWitt60 min
Mar 19, 9:31 PM CSTSevere Thunderstorm WarningEWXLavaca29 min

Nearby

Flash Flood Warnings in Texas, 2005Every flash flood warning in 2005

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.