Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 37, NWS Austin/San Antonio, TX

June 13, 2003Caldwell County, Gonzales County, Karnes County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 13, 2003, 8:37 PM CDT for Caldwell County, Gonzales County, Karnes 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
Jun 13, 2003, 8:37 PM CDT (01:37 UTC)
Expired
Jun 13, 2003, 11:30 PM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

Counties Caldwell County, TX, Gonzales County, TX, Karnes County, TX

The radar

The Austin/San Antonio radar (KEWX), 55 km from the middle of the area, began a volume at 01:38 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, 1.6 hours before the alert went out and 194 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 2003-06-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 3720 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 2003-06-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 square meters per square second.193958Sfc1 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
3720 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
849 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
56 m²/s²
Significant tornado parameter
1.7
Supercell composite
6.3

Open this sounding in Storm Lab

The text

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

000 
WGUS54 KEWX 140140
FFWSAT
TXC055-177-255-140430-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
837 PM CDT FRI JUN 13 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 1130 PM CDT

* AT 837 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED VERY 
HEAVY RAIN FROM 3 MILES WEST OF GONZALES TO 11 MILES SOUTHWEST OF 
KENEDY...MOVING SOUTHEAST AT 25 MPH. A LINE OF STRONG THUNDERSTORMS 
WILL CONTINUE TO MOVING ACROSS THE WARNED AREA OVER THE NEXT COUPLE 
OF HOURS. RAINFALL RATES OF ONE TO TWO INCHES PER HOUR...GUSTY WINDS 
AND DANGEROUS LIGHTNING WILL ACCOMPANY THESE STORMS

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH FLOODING IS OBSERVED ACT
QUICKLY. MOVE UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY
IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

LAT...LON 2961 9749 2881 9800 2946 9728 2985 9739

$$
1 follow-up statement
000 
WGUS74 KEWX 140231
FFSSAT
TXC013-055-177-187-255-493-140430-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
931 PM CDT FRI JUN 13 2003

...A FLASH FLOOD WARNING CONTINUES FOR CALDWELL...
GONZALES...AND KARNES COUNTIES UNTIL 1130 PM CDT...
...A FLASH FLOOD WARNING CONTINUES FOR WILSON...
GUADALUPE...AND ATASCOSA COUNTIES UNTIL 1100 PM CDT...

AT 931 PM...RADAR INDICATED AREAS OF RAIN...HEAVY AT TIMES...
CONTINUING OVER PARTS OF ATASCOSA...WILSON...GUADALUPE...
GONZALES...CALDWELL...AND KARNES COUNTIES.

RAINFALL AMOUNTS NEAR 1.50 TO NEAR 2 INCHES IN A SHORT
PERIOD OF TIME HAVE BEEN OBSERVED WITH THESE SHOWERS AND 
THUNDERSTORMS IN THE PAST FEW HOURS.

EXCESSIVE RUNOFF FROM THESE STORMS WILL CAUSE FLASH FLOODING OF 
SMALL CREEKS AND STREAMS...LOW WATER CROSSINGS...NEAR UNDERPASSES...
COUNTRY ROADS...NORMALLY DRY WASHES...AND FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE ROAD.
VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED QUICKLY. MOVE TO
HIGHER GROUND. STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST
WEATHER INFORMATION.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 13, 7:08 PM CDTTornado WarningEWXFrio67 min
Jun 13, 7:17 PM CDTSevere Thunderstorm WarningEWXAtascosa58 min
Jun 13, 7:30 PM CDTSevere Thunderstorm WarningEWXBexar, Comal, Guadalupe60 min
Jun 13, 7:55 PM CDTFlash Flood WarningEWXAtascosa, Guadalupe, Wilson3 hr
Jun 13, 9:08 PM CDTSevere Thunderstorm WarningEWXDeWitt52 min
Jun 13, 9:49 PM CDTSevere Thunderstorm WarningEWXLavaca71 min
Jun 13, 10:00 PM CDTSevere Thunderstorm WarningEWXDeWitt30 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.