Alert archive / Texas / Flash Flood Warnings in 2014

Flash Flood Warning 9, NWS Austin/San Antonio, TX

May 13, 2014Atascosa County, Bexar County, Wilson County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 13, 2014, 1:08 AM CDT for Atascosa County, Bexar County, Wilson 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
May 13, 2014, 1:08 AM CDT (06:08 UTC)
Expired
May 13, 2014, 4:00 AM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Flood severity
None

Counties Atascosa County, TX, Bexar County, TX, Wilson County, TX

The radar

The Austin/San Antonio radar (KEWX), 85 km from the middle of the area, began a volume at 06:11 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, 6.1 hours before the alert went out and 203 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 2014-05-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2559 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 00:00Z on 2014-05-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 7 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
2559 J/kg
Mixed-layer CIN
-37 J/kg
Mixed-layer LCL
547 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
7 m²/s²
0-3 km storm-relative helicity
43 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.0

Open this sounding in Storm Lab

The text

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

903 
WGUS54 KEWX 130608
FFWEWX
TXC013-029-493-130900-
/O.NEW.KEWX.FF.W.0009.140513T0608Z-140513T0900Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
108 AM CDT TUE MAY 13 2014

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  NORTHWESTERN ATASCOSA COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHWESTERN BEXAR COUNTY IN SOUTH CENTRAL TEXAS...
  EXTREME WEST CENTRAL WILSON COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 400 AM CDT

* AT 102 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAINS PRODUCING FLASH FLOODING FROM THUNDERSTORMS OVER
  THE LEMING TO SOMERSET AREAS. DOPPLER RADAR INDICATED 2 TO 5 INCHES
  OF RAIN. AN ADDITIONAL 1 TO 3 INCHES OF RAIN IS POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS 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 TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

&&

LAT...LON 2925 9879 2914 9838 2905 9843 2908 9880

$$

!__@_WWA_FFW.WWAPROD--!

The office that day

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

IssuedProductOfficeCountiesLasted
May 12, 7:25 PM CDTSevere Thunderstorm WarningEWXGillespie, Kerr35 min
May 12, 8:09 PM CDTSpecial Weather StatementEWXKerr51 min
May 12, 9:01 PM CDTAreal Flood AdvisoryEWXTravis, Williamson3 hr
May 12, 9:50 PM CDTSpecial Weather StatementEWXKendall40 min
May 12, 10:09 PM CDTFlash Flood WarningEWXBlanco, Comal, Hays3 hr
May 12, 10:17 PM CDTFlash Flood WarningEWXTravis3 hr
May 12, 10:17 PM CDTSpecial Weather StatementEWXMaverick43 min
May 12, 10:36 PM CDTAreal Flood AdvisoryEWXBexar114 min
May 12, 10:47 PM CDTAreal Flood AdvisoryEWXBastrop, Lee, Travis, Williamson103 min
May 12, 10:52 PM CDTSpecial Weather StatementEWXBexar23 min
May 12, 11:10 PM CDTFlash Flood WarningEWXTravis2 hr
May 12, 11:13 PM CDTSpecial Weather StatementEWXGuadalupe, Wilson32 min
May 12, 11:18 PM CDTFlash Flood WarningEWXHays, Travis3 hr
May 12, 11:21 PM CDTAreal Flood AdvisoryEWXBexar, Comal, Guadalupe, Wilson2 hr
May 12, 11:26 PM CDTAreal Flood AdvisoryEWXAtascosa, Frio, Kinney, Maverick, Medina, Uvalde and 1 more2 hr
May 12, 11:30 PM CDTAreal Flood AdvisoryEWXBastrop, Fayette, Lee2 hr
May 12, 11:38 PM CDTAreal Flood AdvisoryEWXCaldwell, Comal, Guadalupe112 min
May 12, 11:40 PM CDTFlash Flood WarningEWXBexar2 hr
May 12, 11:42 PM CDTSpecial Weather StatementEWXCaldwell48 min
May 12, 11:53 PM CDTFlash Flood WarningEWXBastrop, Caldwell, Comal, Guadalupe, Hays3 hr
May 13, 12:05 AM CDTAreal Flood AdvisoryEWXBastrop, Caldwell, Fayette115 min
May 13, 12:11 AM CDTSpecial Weather StatementEWXKarnes49 min
May 13, 12:12 AM CDTSpecial Weather StatementEWXWilson48 min
May 13, 12:14 AM CDTSpecial Weather StatementEWXCaldwell46 min
May 13, 12:26 AM CDTSpecial Weather StatementEWXFrio49 min
May 13, 12:37 AM CDTFlash Flood WarningEWXBastrop, Fayette, Gonzales, Lee113 min
May 13, 12:41 AM CDTSpecial Weather StatementEWXDeWitt, Gonzales64 min
May 13, 12:48 AM CDTAreal Flood AdvisoryEWXKarnes, Wilson2 hr
May 13, 12:56 AM CDTAreal Flood AdvisoryEWXCaldwell, Gonzales, Guadalupe2 hr
May 13, 1:15 AM CDTSpecial Weather StatementEWXDeWitt, Lavaca60 min
May 13, 1:39 AM CDTAreal Flood AdvisoryEWXDeWitt, Gonzales, Lavaca3 hr
May 13, 1:54 AM CDTAreal Flood AdvisoryEWXBexar2 hr
May 13, 2:09 AM CDTSpecial Weather StatementEWXLavaca51 min
May 13, 8:50 AM CDTRiver Flood WarningEWXBexar6 hr
May 13, 8:50 AM CDTRiver Flood WarningEWXBexar6 hr
May 13, 8:50 AM CDTRiver Flood WarningEWXBexar, Wilson13 hr

Nearby

Flash Flood Warnings in Texas, 2014Every flash flood warning in 2014

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.