Alert archive / Texas / Flash Flood Warnings in 2015

Flash Flood Warning 53, NWS Austin/San Antonio, TX

May 23, 20154 counties in Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 23, 2015, 5:14 PM CDT for 4 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 23, 2015, 5:14 PM CDT (22:14 UTC)
Expired: May 23, 2015, 8:15 PM CDT
In force: 3 hr
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Flood severity: None

Counties Bandera County, TX, Medina County, TX, Real County, TX, Uvalde County, TX

The radar

The Laughlin AFB radar (KDFX), 76 km from the middle of the area, began a volume at 22:00 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

Time	Report	Where	Remark
May 23, 5:50 PM CDT	HEAVY RAIN 3.48	3 Nw Bandera, TX
May 23, 7:40 PM CDT	FLASH FLOOD	Sabinal, TX	SH127 FROM THE CITY PARK IN SABINAL TO THE SH127-187 FORK NORTH OF TOWN IS FLOODED
May 23, 7:42 PM CDT	HEAVY RAIN 3.49	Sabinal, TX
May 23, 7:46 PM CDT	HEAVY RAIN 4.35	2 W Utopia, TX

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 12:00Z, 10.2 hours before the alert went out and 127 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2727 J/kg
Mixed-layer CIN: -3 J/kg
Mixed-layer LCL: 601 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 79 m²/s²
0-3 km storm-relative helicity: 226 m²/s²
Significant tornado parameter: 1.4
Supercell composite: 8.5

Open this sounding in Storm Lab

The text

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

731 
WGUS54 KEWX 232214
FFWEWX
TXC019-325-385-463-240115-
/O.NEW.KEWX.FF.W.0053.150523T2214Z-150524T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
514 PM CDT SAT MAY 23 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN REAL COUNTY IN SOUTH CENTRAL TEXAS...
  NORTHWESTERN MEDINA COUNTY IN SOUTH CENTRAL TEXAS...
  CENTRAL BANDERA COUNTY IN SOUTH CENTRAL TEXAS...
  UVALDE COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 815 PM CDT
    
* AT 513 PM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE 
  ALREADY FALLEN AND UP TO TWO INCHES PER HOUR OF ADDITIONAL 
  RAINFALL WILL CONTINUE THE FLASH FLOOD THREAT.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  MEDINA...UVALDE...HONDO...BANDERA...TARPLEY...SABINAL...D'HANIS...
  GARNER STATE PARK...RIO FRIO...UVALDE ESTATES...BLEWETT...CONCAN...
  KNIPPA...UTOPIA AND REAGAN WELLS.

ADDITIONAL RAINFALL AMOUNTS OF UP TO FOUR INCHES ARE POSSIBLE IN THE 
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

FLOODING IS OCCURRING OR IS IMMINENT.  IT IS IMPORTANT TO KNOW WHERE
YOU ARE RELATIVE TO STREAMS...RIVERS...OR CREEKS WHICH CAN BECOME
KILLERS IN HEAVY RAINS.  CAMPERS AND HIKERS SHOULD AVOID STREAMS OR
CREEKS.

&&

LAT...LON 2909 10009 2966 9978 2965 9949 2991 9942
      2980 9898 2956 9899 2910 9942

$$

LJH

1 follow-up statement

724 
WGUS74 KEWX 232355
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
655 PM CDT SAT MAY 23 2015

TXC019-325-385-463-240115-
/O.CON.KEWX.FF.W.0053.000000T0000Z-150524T0115Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
REAL TX-MEDINA TX-BANDERA TX-UVALDE TX-
655 PM CDT SAT MAY 23 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 815 PM CDT FOR
SOUTHEASTERN REAL...NORTHWESTERN MEDINA...CENTRAL BANDERA AND UVALDE
COUNTIES...

AT 653 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING 
HEAVY RAIN ACROSS THE WARNED AREA. TWO TO FOUR INCHES OF RAIN HAS 
ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO CONTINUE THROUGH 800 
PM.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
MEDINA...UVALDE...HONDO...BANDERA...TARPLEY...SABINAL...D'HANIS...
GARNER STATE PARK...RIO FRIO...UVALDE ESTATES...BLEWETT...CONCAN...
KNIPPA...UTOPIA AND REAGAN WELLS.

ADDITIONAL RAINFALL AMOUNTS OF ONE TO TWO INCHES ARE POSSIBLE IN THE 
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 2909 10009 2966 9978 2965 9949 2991 9942
      2980 9898 2956 9899 2910 9942

$$

ZEITLER

The office that day

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

Issued	Product	Office	Counties	Lasted
May 23, 3:09 AM CDT	Areal Flood Advisory	EWX	Edwards, Kinney, Real, Uvalde	3 hr
May 23, 3:45 AM CDT	Flash Flood Warning	EWX	Edwards, Real, Uvalde	4 hr
May 23, 12:37 PM CDT	Areal Flood Advisory	EWX	Bandera, Kerr, Medina, Real, Uvalde	113 min
May 23, 1:01 PM CDT	Areal Flood Advisory	EWX	DeWitt, Gonzales, Karnes, Lavaca, Wilson	119 min
May 23, 1:28 PM CDT	Areal Flood Advisory	EWX	Fayette	2 hr
May 23, 1:42 PM CDT	Special Weather Statement	EWX	Fayette	48 min
May 23, 2:06 PM CDT	Special Weather Statement	EWX	Comal	39 min
May 23, 2:12 PM CDT	River Flood Warning	EWX	Uvalde	31 hr
May 23, 2:20 PM CDT	Special Weather Statement	EWX	Blanco	55 min
May 23, 2:26 PM CDT	Special Weather Statement	EWX	Bastrop	64 min
May 23, 2:30 PM CDT	Special Weather Statement	EWX	Comal	45 min
May 23, 2:33 PM CDT	Special Weather Statement	EWX	Lavaca	57 min
May 23, 2:40 PM CDT	Severe Thunderstorm Warning	EWX	Val Verde	65 min
May 23, 2:45 PM CDT	Special Weather Statement	EWX	Williamson	60 min
May 23, 2:52 PM CDT	Special Weather Statement	EWX	Hays	53 min
May 23, 3:11 PM CDT	Flash Flood Warning	EWX	Bandera, Real, Uvalde	2 hr
May 23, 3:22 PM CDT	Special Weather Statement	EWX	Blanco	38 min
May 23, 3:28 PM CDT	Special Weather Statement	EWX	Frio	47 min
May 23, 3:37 PM CDT	Areal Flood Advisory	EWX	Val Verde	113 min
May 23, 3:42 PM CDT	Areal Flood Advisory	EWX	Bexar	2 hr
May 23, 3:48 PM CDT	Special Weather Statement	EWX	Val Verde	42 min
May 23, 4:08 PM CDT	Flash Flood Warning	EWX	Edwards, Kinney, Val Verde	3 hr
May 23, 4:12 PM CDT	Flash Flood Warning	EWX	Bandera, Bexar, Blanco, Comal, Kendall, Kerr and 1 more	9 hr
May 23, 4:50 PM CDT	Flash Flood Warning	EWX	Bandera, Edwards, Kerr, Real	6 hr
May 23, 5:03 PM CDT	Special Weather Statement	EWX	Uvalde	27 min
May 23, 5:31 PM CDT	Special Weather Statement	EWX	Uvalde	59 min
May 23, 5:46 PM CDT	Special Weather Statement	EWX	Comal	44 min
May 23, 5:51 PM CDT	Severe Thunderstorm Warning	EWX	Uvalde	39 min
May 23, 5:57 PM CDT	Tornado Warning	EWX	Comal	33 min
May 23, 6:05 PM CDT	River Flood Warning	EWX	Bandera	28 hr
May 23, 6:29 PM CDT	Flash Flood Warning	EWX	Blanco, Gillespie	6 hr
May 23, 6:39 PM CDT	Special Weather Statement	EWX	Zavala	51 min
May 23, 6:45 PM CDT	Severe Thunderstorm Warning	EWX	Blanco	45 min

Nearby

Flash Flood Warnings in Texas, 2015 Every 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; radar from the NEXRAD Level II archive.