Alert archive / Texas / Flash Flood Warnings in 2003

Flash Flood Warning 59, NWS Austin/San Antonio, TX

July 16, 2003Bexar County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jul 16, 2003, 1:05 PM CDT for Bexar County, Texas. It was in force for 115 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
Jul 16, 2003, 1:05 PM CDT (18:05 UTC)
Expired
Jul 16, 2003, 3:00 PM CDT
In force
115 min
Issued by
NWS Austin/San Antonio, TX
Area
Counties, with a storm outline in the text

County Bexar County, TX

The radar

The Austin/San Antonio radar (KEWX), 58 km from the middle of the area, began a volume at 18:05 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, 6.1 hours before the alert went out and 221 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 2003-07-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2003-07-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -62 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
620 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
-62 m²/s²
0-3 km storm-relative helicity
24 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 161805
FFWSAT
TXC029-162000-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
105 PM CDT WED JUL 16 2003

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

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

* UNTIL 300 PM CDT

* AT 105 PM...WEATHER SERVICE DOPPLER RADAR INDICATED VERY HEAVY     
  RAINS MOVING NORTHWEST AT 25 MPH INTO SOUTHERN BEXAR COUNTY.

THIS BAND OF HEAVY RAINS WILL MOVE OVER AREAS THAT HAS ALREADY 
RECEIVED UP TO 1 AND 1/2 INCHES OVER THE PAST TWO HOURS. SOIL 
CONDITIONS ARE ALREADY SATURATED...AND ANY ADDITIONAL RAINFALL WILL 
QUICKLY RUNOFF. THIS EXCESSIVE RUNOFF WILL CAUSE FLASH FLOODING OF 
SMALL CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES.  

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 2928 9879 2913 9844 2948 9816 2958 9837
          2975 9854 2971 9880

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 15, 9:22 PM CDTFlash Flood WarningEWXAtascosa, Frio, Karnes, Wilson113 min
Jul 15, 10:30 PM CDTFlash Flood WarningEWXBexar, Medina2 hr
Jul 15, 11:12 PM CDTFlash Flood WarningEWXAtascosa, Frio, Karnes, Wilson108 min
Jul 16, 1:27 PM CDTFlash Flood WarningEWXKarnes2 hr
Jul 16, 1:52 PM CDTFlash Flood WarningEWXMedina113 min
Jul 16, 2:39 PM CDTFlash Flood WarningEWXFrio111 min
Jul 16, 4:26 PM CDTFlash Flood WarningEWXVal Verde2 hr
Jul 16, 6:33 PM CDTFlash Flood WarningEWXLavaca4 hr
Jul 16, 6:42 PM CDTFlash Flood WarningEWXVal Verde3 hr

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.