Alert archive / Texas / Flash Flood Warnings in 2014

Flash Flood Warning 4, NWS Austin/San Antonio, TX

May 12, 2014Travis County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 12, 2014, 11:10 PM CDT for Travis County, Texas. It was in force for 2 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 12, 2014, 11:10 PM CDT (04:10 UTC)
Expired
May 13, 2014, 1:15 AM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Flood severity
None

County Travis County, TX

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 4.2 hours before the alert went out and 284 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.

075 
WGUS54 KEWX 130410
FFWEWX
TXC453-130615-
/O.NEW.KEWX.FF.W.0004.140513T0410Z-140513T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1110 PM CDT MON MAY 12 2014

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN TRAVIS COUNTY IN SOUTH CENTRAL TEXAS...
  THIS INCLUDES THE CITY OF AUSTIN BERGSTROM INT AP...

* UNTIL 115 AM CDT

* AT 1106 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  VERY HEAVY RAINS CAUSING FLASH FLOODING OVER EASTERN TRAVIS 
  COUNTY. DOPPLER ESTIMATES RAINFALL AMOUNTS OF 1 TO 2 INCHES.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO MANOR

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...URBAN AREAS...HIGHWAYS...STREETS AND UNDERPASSES
AS WELL AS OTHER DRAINAGE AREAS AND LOW LYING SPOTS.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...HIGHWAYS AND UNDERPASSES. ADDITIONALLY...COUNTRY
ROADS AND FARMLANDS ALONG THE BANKS OF CREEKS...STREAMS AND OTHER LOW
LYING AREAS ARE SUBJECT TO FLOODING.

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.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

&&

LAT...LON 3045 9757 3042 9737 3021 9750 3004 9771
      3007 9776

$$
1 follow-up statement
582 
WGUS74 KEWX 130618
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
118 AM CDT TUE MAY 13 2014

TXC453-130627-
/O.EXP.KEWX.FF.W.0004.000000T0000Z-140513T0615Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
TRAVIS TX-
118 AM CDT TUE MAY 13 2014

...THE FLASH FLOOD WARNING HAS EXPIRED FOR SOUTHEASTERN TRAVIS
COUNTY...

NATIONAL WEATHER SERVICE RADAR SHOWED ONLY LIGHT TO MODERATE RAINS 
ACROSS SOUTHEASTERN TRAVIS COUNTY. NO ADDITIONAL FLASH FLOODING IS 
EXPECTED. THE WARNING WILL BE ALLOWED TO EXPIRE. HOWEVER...SOME 
STREAMS WILL STILL RUN HIGH FOR THE NEXT FEW HOURS DUE TO EARLIER 
VERY HEAVY RAINS.

LAT...LON 3045 9757 3042 9737 3021 9750 3004 9771
      3007 9776

$$

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, 11:13 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, 1:08 AM CDTFlash Flood WarningEWXAtascosa, Bexar, Wilson3 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.