Alert archive / Texas / Flash Flood Warnings in 2015

Flash Flood Warning 162, NWS Austin/San Antonio, TX

October 24, 20156 counties in Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Oct 24, 2015, 9:16 AM CDT for 6 counties in 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: Oct 24, 2015, 9:16 AM CDT (14:16 UTC)
Expired: Oct 24, 2015, 12:15 PM 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, Frio County, TX, Karnes County, TX, Medina County, TX, Wilson County, TX

The radar

The Austin/San Antonio radar (KEWX), 75 km from the middle of the area, began a volume at 14:18 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 12:00Z, 2.3 hours before the alert went out and 167 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: 1121 J/kg
Mixed-layer CIN: -4 J/kg
Mixed-layer LCL: 628 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 87 m²/s²
0-3 km storm-relative helicity: 140 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 3.8

Open this sounding in Storm Lab

The text

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

574 
WGUS54 KEWX 241418 RRA
FFWEWX
TXC013-029-163-255-325-493-241715-
/O.NEW.KEWX.FF.W.0162.151024T1416Z-151024T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
916 AM CDT SAT OCT 24 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHEASTERN MEDINA COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHERN BEXAR COUNTY IN SOUTH CENTRAL TEXAS...
  WILSON COUNTY IN SOUTH CENTRAL TEXAS...
  FRIO COUNTY IN SOUTH CENTRAL TEXAS...
  KARNES COUNTY IN SOUTH CENTRAL TEXAS...
  ATASCOSA COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 1215 PM CDT
    
* AT 916 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. ONE TO THREE INCHES OF RAIN
  HAVE FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  PEARSALL...PLEASANTON...FLORESVILLE...DEVINE...DILLEY...
  JOURDANTON...KENEDY...POTEET...KARNES CITY...POTH...CHARLOTTE...
  STOCKDALE...CHRISTINE...CAMPBELLTON...KOSCIUSKO...MOORE...LYTLE...
  ST. HEDWIG...SOMERSET AND ELMENDORF.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 2864 9834 2864 9921 2929 9922 2928 9879
      2918 9840 2945 9814 2945 9812 2943 9814
      2936 9811 2938 9809 2938 9784 2935 9786
      2911 9762 2900 9775 2881 9758 2867 9778
      2872 9792 2869 9801 2879 9810 2861 9833

$$

1 follow-up statement

493 
WGUS74 KEWX 241551
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1051 AM CDT SAT OCT 24 2015

TXC013-029-163-255-325-493-241715-
/O.CON.KEWX.FF.W.0162.000000T0000Z-151024T1715Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MEDINA TX-BEXAR TX-WILSON TX-FRIO TX-KARNES TX-ATASCOSA TX-
1051 AM CDT SAT OCT 24 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1215 PM CDT FOR
SOUTHEASTERN MEDINA...SOUTHERN BEXAR...WILSON...FRIO...KARNES AND
ATASCOSA COUNTIES...

AT 1049 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA.  FLASH FLOODING IS EXPECTED TO
CONTINUE.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
PEARSALL...PLEASANTON...FLORESVILLE...DEVINE...DILLEY...JOURDANTON...
KENEDY...POTEET...KARNES CITY...POTH...CHARLOTTE...STOCKDALE...
CHRISTINE...CAMPBELLTON...KOSCIUSKO...MOORE...LYTLE...ST. HEDWIG...
SOMERSET AND ELMENDORF.

ADDITIONAL RAINFALL AMOUNTS OF ONE INCH ARE POSSIBLE IN THE WARNED
AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

PLEASE REPORT FLOODING TO YOUR LOCAL LAW ENFORCEMENT AGENCY WHEN YOU
CAN DO SO SAFELY.

&&

LAT...LON 2864 9834 2864 9921 2929 9922 2928 9879
      2918 9840 2945 9814 2945 9812 2943 9814
      2936 9811 2938 9809 2938 9784 2935 9786
      2911 9762 2900 9775 2881 9758 2867 9778
      2872 9792 2869 9801 2879 9810 2861 9833

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 23, 8:19 PM CDT	Areal Flood Advisory	EWX	Bexar, Comal, Guadalupe	116 min
Oct 23, 10:55 PM CDT	Areal Flood Advisory	EWX	Llano	3 hr
Oct 23, 11:45 PM CDT	Areal Flood Advisory	EWX	Burnet, Llano	3 hr
Oct 24, 12:28 AM CDT	Areal Flood Advisory	EWX	Val Verde	4 hr
Oct 24, 1:39 AM CDT	Flash Flood Warning	EWX	Edwards, Val Verde	4 hr
Oct 24, 1:47 AM CDT	Areal Flood Advisory	EWX	Atascosa, Bexar	3 hr
Oct 24, 1:50 AM CDT	Flash Flood Warning	EWX	Burnet, Llano	4 hr
Oct 24, 2:00 AM CDT	Areal Flood Advisory	EWX	Bandera, Blanco, Gillespie, Kendall, Kerr, Real	4 hr
Oct 24, 3:00 AM CDT	Flash Flood Warning	EWX	Bexar, Comal, Guadalupe, Kendall	4 hr
Oct 24, 3:06 AM CDT	Special Weather Statement	EWX	Val Verde	54 min
Oct 24, 3:21 AM CDT	Areal Flood Advisory	EWX	Williamson	114 min
Oct 24, 3:29 AM CDT	Flash Flood Warning	EWX	Bandera, Edwards, Kerr, Real	3 hr
Oct 24, 3:52 AM CDT	Areal Flood Advisory	EWX	Travis, Williamson	3 hr
Oct 24, 4:23 AM CDT	Flash Flood Warning	EWX	Travis, Williamson	7 hr
Oct 24, 4:43 AM CDT	Areal Flood Advisory	EWX	Edwards, Kinney, Val Verde	3 hr
Oct 24, 4:50 AM CDT	Flash Flood Warning	EWX	Blanco, Comal, Gillespie, Hays, Kendall, Kerr	2 hr
Oct 24, 5:53 AM CDT	Flash Flood Warning	EWX	Bastrop, Lee	6 hr
Oct 24, 6:22 AM CDT	Flash Flood Warning	EWX	Edwards, Real, Uvalde	3 hr
Oct 24, 6:37 AM CDT	Special Weather Statement	EWX	Bastrop, Lee	53 min
Oct 24, 6:48 AM CDT	Flash Flood Warning	EWX	Bandera, Bexar, Blanco, Caldwell, Comal, Gillespie and 6 more	3 hr
Oct 24, 8:16 AM CDT	Flash Flood Warning	EWX	Caldwell, Fayette, Gonzales, Guadalupe	3 hr
Oct 24, 8:20 AM CDT	River Flood Warning	EWX	Val Verde	36 hr
Oct 24, 8:20 AM CDT	River Flood Warning	EWX	Val Verde	45 hr
Oct 24, 8:20 AM CDT	River Flood Warning	EWX	Val Verde	32 hr
Oct 24, 8:32 AM CDT	Areal Flood Advisory	EWX	Maverick	3 hr
Oct 24, 8:46 AM CDT	River Flood Warning	EWX	Blanco	25 hr
Oct 24, 9:17 AM CDT	Flash Flood Warning	EWX	DeWitt, Lavaca	3 hr
Oct 24, 9:24 AM CDT	Areal Flood Advisory	EWX	Bandera, Edwards, Kerr, Real	3 hr
Oct 24, 9:42 AM CDT	Flash Flood Warning	EWX	Bexar, Caldwell, Comal, Guadalupe, Hays	2 hr
Oct 24, 9:55 AM CDT	Areal Flood Advisory	EWX	Blanco, Gillespie, Kendall, Kerr	3 hr
Oct 24, 9:59 AM CDT	River Flood Warning	EWX	Bexar, Wilson	45 hr
Oct 24, 10:04 AM CDT	River Flood Warning	EWX	Kerr	27 hr
Oct 24, 10:04 AM CDT	River Flood Warning	EWX	Comal, Gonzales, Guadalupe	19 hr
Oct 24, 10:04 AM CDT	River Flood Warning	EWX	Comal, Guadalupe	24 hr
Oct 24, 11:09 AM CDT	Areal Flood Advisory	EWX	Travis, Williamson	6 hr
Oct 24, 11:36 AM CDT	Areal Flood Advisory	EWX	Bastrop, Lee	3 hr
Oct 24, 11:45 AM CDT	Areal Flood Advisory	EWX	Caldwell, Fayette, Gonzales, Guadalupe	3 hr
Oct 24, 11:57 AM CDT	Areal Flood Advisory	EWX	Bexar, Caldwell, Comal, Guadalupe, Hays, Wilson	3 hr
Oct 24, 12:12 PM CDT	Areal Flood Advisory	EWX	Atascosa, Bexar, Frio, Medina, Wilson	2 hr
Oct 24, 12:20 PM CDT	Areal Flood Advisory	EWX	Atascosa, DeWitt, Karnes, Lavaca	115 min
Oct 24, 2:17 PM CDT	Areal Flood Advisory	EWX	DeWitt, Karnes, Lavaca, Wilson	3 hr
Oct 24, 2:23 PM CDT	Areal Flood Advisory	EWX	Bastrop, Lee	3 hr
Oct 24, 2:30 PM CDT	Areal Flood Advisory	EWX	Bastrop, Lee	3 hr
Oct 24, 2:43 PM CDT	Areal Flood Advisory	EWX	Caldwell, Fayette, Gonzales, Guadalupe	3 hr
Oct 24, 4:00 PM CDT	Flash Flood Watch	EWX	Bastrop, Caldwell, DeWitt, Fayette, Gonzales, Guadalupe and 7 more	8 hr

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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.