Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 43, NWS Austin/San Antonio, TX

June 28, 2003Kendall County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 28, 2003, 5:45 PM CDT for Kendall County, Texas. It was in force for 105 min. 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 28, 2003, 5:45 PM CDT (22:45 UTC)
Expired
Jun 28, 2003, 7:30 PM CDT
In force
105 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Kendall County, TX

The radar

The Austin/San Antonio radar (KEWX), 78 km from the middle of the area, began a volume at 22:47 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

Del Rio, TX (KDRT), launched 12:00Z, 10.8 hours before the alert went out and 204 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, Del Rio, TX at 12:00Z on 2003-06-28Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1763 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, Del Rio, TX at 12:00Z on 2003-06-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -24 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
1763 J/kg
Mixed-layer CIN
-15 J/kg
Mixed-layer LCL
820 m above ground
0-6 km bulk shear
9 kt
0-1 km storm-relative helicity
-24 m²/s²
0-3 km storm-relative helicity
83 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 282247
FFWSAT
TXC259-290030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
545 PM CDT SAT JUN 28 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 730 PM CDT

* AT 545 PM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY RAIN
  BETWEEN BOERNE...COMFORT AND SISTERDALE.  RAINFALL AMOUNTS OF 2 TO
  3 INCHES HAVE BEEN ESTIMATED.  THE RAIN IS DECREASING...HOWEVER 
  WATER WILL CONTINUE TO RISE FOR THE NEXT HOUR OR SO.  

EXCESSIVE RUNOFF FROM THIS STORM WILL CAUSE FLASH FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...NORMALLY DRY WASHES AND
ARROYOS...AS WELL AS FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT. MOST FLASH 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 2984 9893 2972 9878 2994 9852 3003 9888

$$
2 follow-up statements
000 
WGUS74 KEWX 282325
FFSSAT
TXC259-290030-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
625 PM CDT SAT JUN 28 2003

...A FLASH FLOOD WARNING CONTINUES FOR KENDALL COUNTY UNTIL 730 PM
CDT...

AT 623 PM...ONLY PATCHY LIGHT RAIN WAS NOTED OVER KENDALL COUNTY.  
HOWEVER...RAINFALL OF 2 TO 3 INCHES WAS ESTIMATED TO HAVE FALLEN 
BETWEEN BOERNE...COMFORT...AND SISTERDALE.  AS A RESULT...WATER 
LEVELS IN THE ABOVE AREA WILL CONTINUE TO RISE WITH SOME FLOODING 
LIKELY OVER THE NEXT HOUR OR SO...THEN WATER LEVELS FALL RAPIDLY.

EXCESSIVE RUNOFF WILL CAUSE FLASH FLOODING OF SMALL CREEKS AND 
STREAMS..COUNTRY ROADS..NORMALLY DRY WASHES AND ARROYOS..AS WELL AS 
FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.

STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION.

$$
000 
WGUS74 KEWX 290039
FFSSAT
TXC259-290100-

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
737 PM CDT SAT JUN 28 2003

...THE FLASH FLOOD WARNING FOR KENDALL COUNTY HAS EXPIRED...

NATIONAL WEATHER SERVICE RADAR INDICATED THE RAINFALL HAS ENDED AND 
THE FLOOD THREAT HAS ENDED.  WATER LEVELS ARE NOW FALLING IN THE 
WARNED AREA.  AS A RESULT...THE FLASH FLOOD WARNING HAS EXPIRED.  

STAY TUNED TO LOCAL MEDIA OUTLETS FOR THE LATEST WEATHER INFORMATION.

$$

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.