Alert archive / Texas / Flash Flood Warnings in 2016

Flash Flood Warning 25, NWS Austin/San Antonio, TX

May 19, 2016Gillespie County, Kendall County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 19, 2016, 6:33 AM CDT for Gillespie County, Kendall County, Texas. It was in force for 5 hr. 3 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 19, 2016, 6:33 AM CDT (11:33 UTC)
Expired
May 19, 2016, 11:30 AM CDT
In force
5 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Flood severity
None

Counties Gillespie County, TX, Kendall County, TX

The radar

The Austin/San Antonio radar (KEWX), 80 km from the middle of the area, began a volume at 11:37 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.

What was reported inside it

TimeReportWhereRemark
May 19, 7:00 AM CDTFLASH FLOOD4 Sw Fredericksburg, TXON HWY 16 NEAR THE GILLESPIE COUNTY AIRPORT HEAVY RAINS CAUSED THE HWY TO BE CLOSED FOR A SHORT PERIOD
May 19, 7:00 AM CDTFLASH FLOODLuckenbach, TXLOW WATER CROSSING ALONG 1376 IN THE VICINITY OF LUCHENBACH HAD WATER FLOWING OVER THE ROADWAYS
May 19, 7:50 AM CDTFLASH FLOODBoerne, TXSEVERAL ROADS ARE CLOSED THROUGHOUT THE COUNTY

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

The nearest sounding before it

Del Rio, TX (KDLF), launched 00:00Z, 11.6 hours before the alert went out and 217 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 00:00Z on 2016-05-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 164 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 00:00Z on 2016-05-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 26 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
164 J/kg
Mixed-layer CIN
-87 J/kg
Mixed-layer LCL
799 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
26 m²/s²
0-3 km storm-relative helicity
163 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

As transmitted.

883 
WGUS54 KEWX 191133
FFWEWX
TXC171-259-191430-
/O.NEW.KEWX.FF.W.0025.160519T1133Z-160519T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
633 AM CDT THU MAY 19 2016

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN GILLESPIE COUNTY IN SOUTH CENTRAL TEXAS...
  KENDALL COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 930 AM CDT

* AT 632 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO TWO INCHES OF RAIN HAVE
  ALREADY FALLEN OVER THE PAST ONE AND A HALF HOURS WITH AN
  ADDITIONAL 2 TO 3 INCHES LIKELY OVER THE NEXT TWO TO THREE HOURS.
  FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  FREDERICKSBURG...BOERNE...COMFORT...FAIR OAKS RANCH...STONEWALL...
  WARING...ECKERT...CRABAPPLE...WALNUT GROVE...CAIN CITY...GUADALUPE RIVER
  STATE PARK...WELFARE...LBJ STATE PARK...ROCKY HILL...WILLOW CITY...
  SISTERDALE...BANKERSMITH...BERGHEIM...ALBERT AND BLUMENTHAL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3014 9859 2994 9842 2975 9864 2972 9878
      2978 9892 3014 9892 3014 9906 3050 9890
      3050 9859

$$

ALLEN
2 follow-up statements
447 
WGUS74 KEWX 191312
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
812 AM CDT THU MAY 19 2016

TXC171-259-191430-
/O.CON.KEWX.FF.W.0025.000000T0000Z-160519T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GILLESPIE TX-KENDALL TX-
812 AM CDT THU MAY 19 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 AM CDT FOR
EASTERN GILLESPIE AND KENDALL COUNTIES...

AT 805 AM CDT...LOCAL LAW ENFORCEMENT REPORTED SEVERAL COUNTY ROADS
ACROSS KENDALL COUNTY WERE FLOODED AND IMPASSABLE. HIGHWAY 16 IN
GILLESPIE COUNTY WAS ALSO CLOSED DUE TO HIGH WATER FOR A BRIEF TIME.
TWO TO THREE INCHES OF RAIN HAVE ALREADY FALLEN OVER THE PAST
SEVERAL HOURS. FLASH FLOODING IS ONGOING AND EXPECTED TO CONTINUE AS
SOILS REMAIN SATURATED.

ADDITIONAL RAINFALL AMOUNTS OF AN INCH TO INCH AND A HALF ARE
POSSIBLE IN THE WARNED AREA OVER THE NEXT HOUR. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
FREDERICKSBURG...BOERNE...COMFORT...FAIR OAKS RANCH...STONEWALL...WARING...
ECKERT...CRABAPPLE...WALNUT GROVE...CAIN CITY...GUADALUPE RIVER STATE
PARK...WELFARE...LBJ STATE PARK...ROCKY HILL...WILLOW CITY...SISTERDALE...
BANKERSMITH...BERGHEIM...ALBERT AND BLUMENTHAL.


LAT...LON 3014 9859 2994 9842 2975 9864 2972 9878
      2978 9892 3014 9892 3014 9906 3050 9890
      3050 9859

$$

ALLEN
277 
WGUS54 KEWX 191418
FFWEWX
TXC171-259-191630-
/O.EXT.KEWX.FF.W.0025.000000T0000Z-160519T1630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
918 AM CDT THU MAY 19 2016

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  EASTERN GILLESPIE COUNTY IN SOUTH CENTRAL TEXAS...
  KENDALL COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 1130 AM CDT

* AT 915 AM CDT...LOCAL LAW ENFORCEMENT OFFICIALS REPORTED MODERATE
  TO HEAVY RAINFALL ACROSS THE WARNED AREA LEADING TO NUMEROUS LOW
  WATER CROSSINGS BEING CLOSED PER EMERGENCY MANAGEMENT SOURCES. TWO
  TO THREE INCHES OF RAIN HAVE ALREADY FALLEN OVER THE PAST SEVERAL
  HOURS WITH ANOTHER HALF INCH TO ONE INCH POSSIBLE OVER THE NEXT
  HOUR. FLASH FLOODING IS ALREADY OCCURRING AND WILL LINGER THROUGH
  MID TO LATE MORNING HOURS. 

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  FREDERICKSBURG...BOERNE...COMFORT...FAIR OAKS RANCH...STONEWALL...
  WARING...ECKERT...CRABAPPLE...WALNUT GROVE...CAIN CITY...GUADALUPE RIVER
  STATE PARK...WELFARE...LBJ STATE PARK...ROCKY HILL...WILLOW CITY...
  SISTERDALE...BANKERSMITH...BERGHEIM...ALBERT AND BLUMENTHAL.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED
ROADS. FIND AN ALTERNATE ROUTE.

&&

LAT...LON 3014 9859 2994 9842 2975 9864 2972 9878
      2978 9892 3014 9892 3014 9906 3050 9890
      3050 9859

$$

ALLEN

The office that day

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

IssuedProductOfficeCountiesLasted
May 19, 2:23 AM CDTRiver Flood WarningEWXKarnes3 days
May 19, 2:39 AM CDTSpecial Weather StatementEWXVal Verde51 min
May 19, 3:06 AM CDTSpecial Weather StatementEWXVal Verde39 min
May 19, 3:44 AM CDTSevere Thunderstorm WarningEWXVal Verde31 min
May 19, 5:08 AM CDTFlash Flood WarningEWXEdwards, Kerr, Real3 hr
May 19, 5:14 AM CDTSevere Thunderstorm WarningEWXDimmit31 min
May 19, 5:48 AM CDTFlash Flood WarningEWXBandera, Kerr5 hr
May 19, 6:39 AM CDTSpecial Weather StatementEWXDimmit51 min
May 19, 6:47 AM CDTSevere Thunderstorm WarningEWXDimmit43 min
May 19, 7:24 AM CDTSevere Thunderstorm WarningEWXDimmit51 min
May 19, 7:31 AM CDTAreal Flood AdvisoryEWXBexar, Comal, Hays, Travis, Williamson3 hr
May 19, 8:41 AM CDTSpecial Weather StatementEWXGuadalupe49 min
May 19, 8:56 AM CDTRiver Flood WarningEWXKerr27 hr
May 19, 9:21 AM CDTAreal Flood AdvisoryEWXGuadalupe3 hr
May 19, 10:13 AM CDTFlash Flood WarningEWXHays3 hr
May 19, 10:54 AM CDTAreal Flood AdvisoryEWXBexar, Comal, Hays, Travis, Williamson3 hr
May 19, 10:59 AM CDTAreal Flood AdvisoryEWXBastrop, Caldwell, Lee3 hr
May 19, 11:03 AM CDTAreal Flood AdvisoryEWXGonzales, Wilson3 hr
May 19, 11:18 AM CDTFlash Flood WarningEWXWilliamson3 hr
May 19, 11:38 AM CDTFlash Flood WarningEWXBastrop, Caldwell, Guadalupe3 hr
May 19, 11:41 AM CDTSpecial Weather StatementEWXLavaca49 min
May 19, 2:06 PM CDTRiver Flood WarningEWXTravis18 hr
May 19, 2:12 PM CDTAreal Flood AdvisoryEWXComal, Hays, Travis, Williamson3 hr
May 19, 2:47 PM CDTAreal Flood AdvisoryEWXBastrop, Caldwell, Guadalupe3 hr
May 19, 3:38 PM CDTRiver Flood WarningEWXDeWitt4 days

Nearby

Flash Flood Warnings in Texas, 2016Every flash flood warning in 2016

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; radar from the NEXRAD Level II archive.