Alert archive / Texas / Flash Flood Warnings in 2015

Flash Flood Warning 35, NWS Austin/San Antonio, TX

May 17, 201513 counties in Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 17, 2015, 8:09 AM CDT for 13 counties in Texas. It was in force for 3 hr. 4 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
May 17, 2015, 8:09 AM CDT (13:09 UTC)
Expired
May 17, 2015, 11:00 AM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Flood severity
None

Counties Atascosa County, TX, Bastrop County, TX, Bexar County, TX, Caldwell County, TX, Comal County, TX, Fayette County, TX, Gonzales County, TX, Guadalupe County, TX, Hays County, TX, Karnes County, TX, Lee County, TX, Travis County, TX, Wilson County, TX

What was reported inside it

TimeReportWhereRemark
May 17, 9:00 AM CDTFLASH FLOOD3 Nne Zorn, TXHWY 123 BETWEEN FM1978 AND FM1979 IS IMPASSABLE...REDWOOD ROAD AT 1978 IMPASSABLE
May 17, 9:30 AM CDTHEAVY RAIN 1.182 N Mcqueeney, TXRAIN FELL IN THE PAST TWO HOURS
May 17, 9:38 AM CDTFLASH FLOODSan Antonio, TXSEVERAL ROAD CLOSURES DUE TO HIGH WATER...INCLUDING STAHL ROAD...SHANNON LEE...LESLIE ROAD...HAUSMANN ROAD SOUTH AND CONTOUR DR
May 17, 10:00 AM CDTFLASH FLOOD3 Nne Gruene, TXCITIZENS HAD TO BE LEAD AWAY FROM A WATER STRANDED VAN ON HOFFMANN LANE

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 12:00Z, 1.2 hours before the alert went out and 241 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 12:00Z on 2015-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2029 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 12:00Z on 2015-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 161 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
2029 J/kg
Mixed-layer CIN
-138 J/kg
Mixed-layer LCL
624 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
161 m²/s²
0-3 km storm-relative helicity
174 m²/s²
Significant tornado parameter
0.3
Supercell composite
4.3

Open this sounding in Storm Lab

The text

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

754 
WGUS54 KEWX 171309
FFWEWX
TXC013-021-029-055-091-149-177-187-209-255-287-453-493-171600-
/O.NEW.KEWX.FF.W.0035.150517T1309Z-150517T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
809 AM CDT SUN MAY 17 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GUADALUPE COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHERN HAYS COUNTY IN SOUTH CENTRAL TEXAS...
  CALDWELL COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHEASTERN TRAVIS COUNTY IN SOUTH CENTRAL TEXAS...
  ATASCOSA COUNTY IN SOUTH CENTRAL TEXAS...
  GONZALES COUNTY IN SOUTH CENTRAL TEXAS...
  BASTROP COUNTY IN SOUTH CENTRAL TEXAS...
  COMAL COUNTY IN SOUTH CENTRAL TEXAS...
  FAYETTE COUNTY IN SOUTH CENTRAL TEXAS...
  BEXAR COUNTY IN SOUTH CENTRAL TEXAS...
  LEE COUNTY IN SOUTH CENTRAL TEXAS...
  WILSON COUNTY IN SOUTH CENTRAL TEXAS...
  NORTHWESTERN KARNES COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 1100 AM CDT
    
* AT 806 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING 
  HEAVY RAIN ACROSS THE I-35 CORRIDOR FROM SOUTH OF SAN ANTONIO TO 
  AUSTIN. CLUSTERS OF HEAVY RAINS WERE MOVING SLOWLY EAST. UP TO ONE 
  INCH OF RAIN HAS ALREADY FALLEN. FLASH FLOODING IS OCCURRING OR 
  EXPECTED TO BEGIN SHORTLY. MANY OF THESE AREAS HAVE RECEIVED HEAVY 
  RAINS MAKING SOILS SATURATED AND RUNOFF MORE RAPID. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  SAN ANTONIO...AUSTIN...NEW BRAUNFELS...SAN MARCOS...SEGUIN...
  UNIVERSAL CITY...LOCKHART...PLEASANTON...ELGIN...GONZALES...
  BASTROP...FLORESVILLE...LULING...GIDDINGS...LA GRANGE...
  JOURDANTON...SMITHVILLE...POTEET...WIMBERLEY AND POTH.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH. 

STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 2963 9711 2962 9715 2956 9720 2887 9820
      2867 9880 2969 9881 2975 9865 2975 9864
      2980 9858 3056 9696 3054 9692 3046 9690
      3039 9679 3032 9674 3030 9665 3014 9677
      3017 9669 3015 9665 2998 9659

$$

CP
3 follow-up statements
825 
WGUS74 KEWX 171359
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
859 AM CDT SUN MAY 17 2015

TXC013-021-029-055-091-149-177-187-209-255-287-453-493-171600-
/O.CON.KEWX.FF.W.0035.000000T0000Z-150517T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GUADALUPE TX-HAYS TX-CALDWELL TX-TRAVIS TX-ATASCOSA TX-GONZALES TX-
BASTROP TX-COMAL TX-FAYETTE TX-BEXAR TX-LEE TX-WILSON TX-KARNES TX-
859 AM CDT SUN MAY 17 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
GUADALUPE...SOUTHERN HAYS...CALDWELL...SOUTHEASTERN TRAVIS...
ATASCOSA...GONZALES...BASTROP...COMAL...FAYETTE...BEXAR...LEE...
WILSON AND NORTHWESTERN KARNES COUNTIES...

AT 855 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING 
MODERATE TO HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF 
RAIN HAS ALREADY FALLEN. FLASH FLOODING WILL CONTINUE. NUMEROUS 
ROADS ARE CLOSED AND SOME STREAMS ARE RUNNING NEAR BANKFULL.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SAN ANTONIO...AUSTIN...NEW BRAUNFELS...SAN MARCOS...SEGUIN...
UNIVERSAL CITY...LOCKHART...PLEASANTON...ELGIN...GONZALES...
BASTROP...FLORESVILLE...LULING...GIDDINGS...LA GRANGE...JOURDANTON...
SMITHVILLE...POTEET...WIMBERLEY AND POTH.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH. 

STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 2963 9711 2962 9715 2956 9720 2887 9820
      2867 9880 2969 9881 2975 9865 2975 9864
      2980 9858 3056 9696 3054 9692 3046 9690
      3039 9679 3032 9674 3030 9665 3014 9677
      3017 9669 3015 9665 2998 9659

$$

CP
086 
WGUS74 KEWX 171450
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
950 AM CDT SUN MAY 17 2015

TXC013-021-029-055-091-149-177-187-209-255-287-453-493-171600-
/O.CON.KEWX.FF.W.0035.000000T0000Z-150517T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GUADALUPE TX-HAYS TX-CALDWELL TX-TRAVIS TX-ATASCOSA TX-GONZALES TX-
BASTROP TX-COMAL TX-FAYETTE TX-BEXAR TX-LEE TX-WILSON TX-KARNES TX-
950 AM CDT SUN MAY 17 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1100 AM CDT FOR
GUADALUPE...SOUTHERN HAYS...CALDWELL...SOUTHEASTERN TRAVIS...
ATASCOSA...GONZALES...BASTROP...COMAL...FAYETTE...BEXAR...LEE...
WILSON AND NORTHWESTERN KARNES COUNTIES...

AT 948 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING 
HEAVY RAIN FROM PLEASANTON TO FLORESVILLE TO SEGUIN TO KYLE AND FROM 
GONZALES TO GIDDINGS. UP TO 2 INCHES OF RAIN HAS FALLEN. SOME SMALL 
STREAMS ARE NEARING BANKFULL AND NUMEROUS ROADS ARE CLOSED. FLASH 
FLOODING WILL CONTINUE. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
SAN ANTONIO...AUSTIN...NEW BRAUNFELS...SAN MARCOS...SEGUIN...
UNIVERSAL CITY...LOCKHART...PLEASANTON...ELGIN...GONZALES...
BASTROP...FLORESVILLE...LULING...GIDDINGS...LA GRANGE...JOURDANTON...
SMITHVILLE...POTEET...WIMBERLEY AND POTH.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE 
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF UNKNOWN DEPTH. 

STAY AWAY OR BE SWEPT AWAY. RIVER BANKS AND CULVERTS CAN BECOME
UNSTABLE AND UNSAFE.

TURN AROUND...DONT DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 2963 9711 2962 9715 2956 9720 2887 9820
      2867 9880 2969 9881 2975 9865 2975 9864
      2980 9858 3056 9696 3054 9692 3046 9690
      3039 9679 3032 9674 3030 9665 3014 9677
      3017 9669 3015 9665 2998 9659

$$

CP
765 
WGUS74 KEWX 171602
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1102 AM CDT SUN MAY 17 2015

TXC013-021-029-055-091-149-177-187-209-255-287-453-493-171611-
/O.EXP.KEWX.FF.W.0035.000000T0000Z-150517T1600Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GUADALUPE TX-HAYS TX-CALDWELL TX-TRAVIS TX-ATASCOSA TX-GONZALES TX-
BASTROP TX-COMAL TX-FAYETTE TX-BEXAR TX-LEE TX-WILSON TX-KARNES TX-
1102 AM CDT SUN MAY 17 2015

...THE FLASH FLOOD WARNING FOR GUADALUPE...SOUTHERN HAYS...
CALDWELL...SOUTHEASTERN TRAVIS...ATASCOSA...GONZALES...BASTROP...
COMAL...FAYETTE...BEXAR...LEE...WILSON AND NORTHWESTERN KARNES
COUNTIES HAS EXPIRED...

THE HEAVY RAIN IS ENDING...AND FLASH FLOODING IS NO LONGER EXPECTED 
TO POSE A THREAT. PLEASE CONTINUE TO HEED ALL ROAD CLOSURES. EARLIER 
HEAVY RAINS UP TO 3 INCHES HAVE CAUSED URBAN AND SMALL STREAM  
FLOODING. NUMEROUS STREAMS HAVE RISEN TO NEAR OR ABOVE BANKFULL.   
THEY WILL REMAIN THERE FOR THE NEXT 2 TO 3 HOURS. THE FLASH FLOOD   
WARNING IS REPLACED BY THIS URBAN AND SMALL STREAM FLOOD ADVISORY.

LAT...LON 2963 9711 2962 9715 2956 9720 2887 9820
      2867 9880 2969 9881 2975 9865 2975 9864
      2980 9858 3056 9696 3054 9692 3046 9690
      3039 9679 3032 9674 3030 9665 3014 9677
      3017 9669 3015 9665 2998 9659

$$

CP

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 12:54 AM CDTSpecial Weather StatementEWXEdwards, Val Verde36 min
May 17, 1:36 AM CDTFlash Flood WarningEWXEdwards, Kerr, Real, Val Verde3 hr
May 17, 1:50 AM CDTSpecial Weather StatementEWXEdwards40 min
May 17, 1:54 AM CDTSpecial Weather StatementEWXVal Verde51 min
May 17, 2:05 AM CDTSpecial Weather StatementEWXVal Verde40 min
May 17, 2:50 AM CDTSpecial Weather StatementEWXGillespie, Llano55 min
May 17, 3:04 AM CDTSpecial Weather StatementEWXReal41 min
May 17, 3:54 AM CDTFlash Flood WarningEWXEdwards, Real3 hr
May 17, 4:05 AM CDTSpecial Weather StatementEWXBlanco, Burnet40 min
May 17, 4:19 AM CDTFlash Flood WarningEWXBurnet, Llano3 hr
May 17, 4:58 AM CDTAreal Flood AdvisoryEWXKinney, Uvalde3 hr
May 17, 5:30 AM CDTAreal Flood AdvisoryEWXTravis, Williamson3 hr
May 17, 5:40 AM CDTSpecial Weather StatementEWXMaverick, Uvalde, Zavala50 min
May 17, 5:52 AM CDTAreal Flood AdvisoryEWXMaverick, Zavala3 hr
May 17, 5:56 AM CDTFlash Flood WarningEWXBandera, Bexar, Blanco, Burnet, Comal, Hays and 4 more3 hr
May 17, 6:15 AM CDTSpecial Weather StatementEWXKendall45 min
May 17, 7:00 AM CDTAreal Flood AdvisoryEWXBexar, Caldwell, Comal, Guadalupe, Hays3 hr
May 17, 7:18 AM CDTAreal Flood AdvisoryEWXDimmit, Frio, Maverick, Medina, Uvalde, Zavala3 hr
May 17, 7:32 AM CDTAreal Flood AdvisoryEWXBastrop, Fayette, Lee3 hr
May 17, 8:44 AM CDTFlash Flood WarningEWXBlanco, Comal, Hays, Kendall, Travis, Williamson2 hr
May 17, 9:16 AM CDTRiver Flood WarningEWXDimmit12 days
May 17, 9:55 AM CDTAreal Flood AdvisoryEWXAtascosa, DeWitt, Fayette, Gonzales, Karnes, Lavaca3 hr
May 17, 10:15 AM CDTSpecial Weather StatementEWXDeWitt, Gonzales, Karnes, Lavaca60 min
May 17, 10:45 AM CDTAreal Flood AdvisoryEWXBlanco, Burnet, Comal, Hays, Kendall, Travis and 1 more2 hr
May 17, 11:01 AM CDTAreal Flood AdvisoryEWXAtascosa, Bastrop, Bexar, Caldwell, Comal, Fayette and 7 more3 hr
May 17, 11:30 AM CDTFlash Flood WarningEWXCaldwell2 hr
May 17, 11:45 AM CDTRiver Flood WarningEWXCaldwell, Gonzales39 hr
May 17, 11:51 AM CDTRiver Flood WarningEWXTravis14 hr
May 17, 1:28 PM CDTAreal Flood AdvisoryEWXCaldwell4 hr
May 17, 3:36 PM CDTRiver Flood WarningEWXCaldwell, Gonzales24 hr
May 17, 3:42 PM CDTRiver Flood WarningEWXGonzales56 hr

Nearby

Flash Flood Warnings in Texas, 2015Every flash flood warning in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive.