Alert archive / Texas / Flash Flood Warnings in 2005

Flash Flood Warning 3, NWS Austin/San Antonio, TX

March 19, 2005Gonzales County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Mar 19, 2005, 7:27 PM CST for Gonzales 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, 7:27 PM CST (01:27 UTC)
Expired
Mar 19, 2005, 10:30 PM CST
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Gonzales County, TX

The radar

The Austin/San Antonio radar (KEWX), 63 km from the middle of the area, began a volume at 01:30 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, 1.5 hours before the alert went out and 188 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 200127
FFWEWX
TXC177-200430-

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

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR THE FOLLOWING COUNTIES...
  GONZALES

* UNTIL 1030 PM CST

* AT 726 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAIN FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE WAELDER AND GONZALES.

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 2915 9762 2941 9725 2964 9721 2977 9732
      2936 9783

$$
3 follow-up statements
000 
WGUS74 KEWX 200146
FFSEWX

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

TXC177-200430-
GONZALES TX-
745 PM CST SAT MAR 19 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 1030 PM CST FOR GONZALES
COUNTY...

AT 743 PM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO 
INDICATE HEAVY THUNDERSTORMS PRODUCING RAINFALL RATES OF 2 TO 3 
INCHES PER HOUR OVER THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE WAELDER AND GONZALES.

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.

LAT...LON 2915 9762 2941 9725 2964 9721 2977 9732
      2936 9783

$$
000 
WGUS74 KEWX 200401
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1000 PM CST SAT MAR 19 2005

TXC177-200430-
GONZALES TX-
1000 PM CST SAT MAR 19 2005

...A FLASH FLOOD WARNING CONTINUES UNTIL 1030 PM CST FOR GONZALES
COUNTY...

AT 956 PM CST...RAINS HAVE ENDED ACROSS GONZALES COUNTY. 
HOWEVER...FLOODING MAY CONTINUE FOR THE NEXT HALF HOUR OR SO DUE TO 
RAINS EARLIER THIS EVENING. 

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.

LAT...LON 2915 9762 2941 9725 2964 9721 2977 9732
      2936 9783

$$
000 
WGUS74 KEWX 200432
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1030 PM CST SAT MAR 19 2005

TXC177-200440-
GONZALES TX-
1030 PM CST SAT MAR 19 2005

...THE FLASH FLOOD WARNING FOR GONZALES COUNTY EXPIRED AT 1030 PM
CST...

AT 1030 PM CST...THE RAINS HAVE ENDED ACROSS GONZALES COUNTY AND 
THREAT FOR FLASH FLOODING HAS ENDED. AS A RESULT...THE FLASH FLOOD 
WARNING WAS LEFT TO EXPIRE. 

HOWEVER...MINOR FLOODING OF LOW LYING AREAS AND SMALL STREAMS IS 
STILL POSSIBLE FOR THE NEXT HOUR OR SO. 

LAT...LON 2915 9762 2941 9725 2964 9721 2977 9732
      2936 9783

$$

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, 7:37 PM CSTSevere Thunderstorm WarningEWXLavaca53 min
Mar 19, 7:41 PM CSTSevere Thunderstorm WarningEWXKarnes64 min
Mar 19, 7:52 PM CSTFlash Flood WarningEWXDeWitt, Karnes, Lavaca3 hr
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.