Alert archive / Texas / Flash Flood Warnings in 2015

Flash Flood Warning 5, NWS Austin/San Antonio, TX

April 24, 2015Bastrop County, Caldwell County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Apr 24, 2015, 6:30 AM CDT for Bastrop County, Caldwell County, Texas. It was in force for 3 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: Apr 24, 2015, 6:30 AM CDT (11:30 UTC)
Expired: Apr 24, 2015, 9:30 AM CDT
In force: 3 hr
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Flood severity: None

Counties Bastrop County, TX, Caldwell County, TX

The radar

The Austin/San Antonio radar (KEWX), 43 km from the middle of the area, began a volume at 11:30 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
Apr 24, 6:30 AM CDT	HEAVY RAIN 4.08	5 Nnw Luling, TX	4.08 INCHES OF RAINFALL IN 2 HOURS...FROM 425 AM TO 630 AM.
Apr 24, 7:15 AM CDT	FLASH FLOOD	2 Ne Togo, TX	MULTIPLE ROADS CLOSED IN BASTROP COUNTY DUE TO FLOODING...INCLUDING FM 535 AT AJ ROD ROAD...VIA ATXFLOODS WEBSITE.
Apr 24, 7:36 AM CDT	FLASH FLOOD	2 Nne Fentress, TX	HWY 20 AT CALLIHAN RD INUNDATED WITH WATER. REPORT GATHERED VIA TWITTER.

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 00:00Z, 11.5 hours before the alert went out and 232 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: 2577 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 628 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: -11 m²/s²
0-3 km storm-relative helicity: 7 m²/s²
Significant tornado parameter: -0.1
Supercell composite: -0.5

Open this sounding in Storm Lab

The text

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

153 
WGUS54 KEWX 241130
FFWEWX
TXC021-055-241430-
/O.NEW.KEWX.FF.W.0005.150424T1130Z-150424T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
630 AM CDT FRI APR 24 2015

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  CALDWELL COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTHERN BASTROP COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 930 AM CDT
    
* AT 630 AM CDT...EMERGENCY MANAGEMENT REPORTED A THUNDERSTORM
  PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF
  RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN
  SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LOCKHART...BASTROP...LULING...SMITHVILLE...MARTINDALE...CIRCLE D-KC
  ESTATE...ROSANKY...FENTRESS...CIRCLE D-KC ESTATES...PAIGE...
  UPTON...BROWNSBORO...MCMAHAN...TAYLORSVILLE...ST JOHN COLONY...
  TILMON...ALUM CREEK...STRING PRAIRIE...STAIRTOWN AND HILLS PRAIRIE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 2980 9730 2968 9751 2964 9762 2967 9765
      2967 9770 2971 9774 2972 9777 2973 9776
      2976 9778 2975 9780 2978 9781 2978 9783
      2983 9785 2999 9754 3026 9710 3005 9702

$$

HAMPSHIRE

1 follow-up statement

455 
WGUS74 KEWX 241256
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
756 AM CDT FRI APR 24 2015

TXC021-055-241430-
/O.CON.KEWX.FF.W.0005.000000T0000Z-150424T1430Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
CALDWELL TX-BASTROP TX-
756 AM CDT FRI APR 24 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 AM CDT FOR
CALDWELL AND SOUTHERN BASTROP COUNTIES...

AT 735 AM CDT...SEVERAL ROAD CLOSURES WERE REPORTED ACROSS BASTROP 
COUNTY. LOCATIONS INCLUDE FARM TO MARKET ROAD 535 AT AJ ROD 
ROAD...WATTERSON AT POSSUM WAY AND THE 100 BLOCK OF SAND HILL ROAD. 
ACROSS CALDWELL COUNTY...FLOODING AT HIGHWAY 20 AND CALLIHAN ROAD 
HAS ALSO BEEN REPORTED. 

AT 745 AM CDT...DOPPLER RADAR CONTINUED TO INDICATED SCATTERED 
SHOWERS AND THUNDERSTORMS PRODUCING MODERATE RAINFALL ACROSS 
NORTHERN CALDWELL AND ALL OF BASTROP COUNTY. UP TO THREE INCHES OF 
RAIN HAVE ALREADY FALLEN IN THE CENTRAL AND EASTERN PORTIONS OF 
CALDWELL AND BASTROP COUNTIES. FLASH FLOODING CONTINUES TO REMAIN A 
THREAT THIS MORNING...ESPECIALLY ACROSS SOUTHEAST BASTROP COUNTY. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
LOCKHART...BASTROP...LULING...SMITHVILLE...MARTINDALE...CIRCLE D-KC 
ESTATE...ROSANKY...FENTRESS...PAIGE...UPTON...BROWNSBORO...
MCMAHAN...TAYLORSVILLE...TILMON...ALUM CREEK...STRING PRAIRIE...
STAIRTOWN...HILLS PRAIRIE...AND HIGHWAYS 183...21 AND 71. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 2980 9730 2968 9751 2964 9762 2967 9765
      2967 9770 2971 9774 2972 9777 2973 9776
      2976 9778 2975 9780 2978 9781 2978 9783
      2983 9785 2999 9754 3026 9710 3005 9702

$$

EMP

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 23, 8:07 PM CDT	Special Weather Statement	EWX	Val Verde	38 min
Apr 23, 9:05 PM CDT	Special Weather Statement	EWX	Val Verde	25 min
Apr 23, 9:37 PM CDT	Special Weather Statement	EWX	Val Verde	23 min
Apr 23, 11:03 PM CDT	Special Weather Statement	EWX	Val Verde	42 min
Apr 23, 11:12 PM CDT	Special Weather Statement	EWX	Val Verde	33 min
Apr 23, 11:53 PM CDT	Special Weather Statement	EWX	Val Verde	52 min
Apr 24, 2:23 AM CDT	Severe Thunderstorm Warning	EWX	Dimmit, Maverick	52 min
Apr 24, 3:27 AM CDT	Areal Flood Advisory	EWX	Dimmit, Zavala	3 hr
Apr 24, 3:50 AM CDT	Areal Flood Advisory	EWX	Real, Uvalde	3 hr
Apr 24, 3:52 AM CDT	Areal Flood Advisory	EWX	Frio	3 hr
Apr 24, 4:35 AM CDT	Areal Flood Advisory	EWX	Bexar, Caldwell, Comal, Guadalupe, Hays, Wilson	3 hr
Apr 24, 4:38 AM CDT	Severe Thunderstorm Warning	EWX	Edwards, Kinney, Val Verde	52 min
Apr 24, 5:02 AM CDT	Flash Flood Warning	EWX	Bexar	3 hr
Apr 24, 5:04 AM CDT	Areal Flood Advisory	EWX	Medina	3 hr
Apr 24, 5:45 AM CDT	Areal Flood Advisory	EWX	Bastrop	3 hr
Apr 24, 6:22 AM CDT	Areal Flood Advisory	EWX	Bandera, Kendall, Kerr	113 min
Apr 24, 6:41 AM CDT	Flash Flood Warning	EWX	Lee	3 hr
Apr 24, 6:48 AM CDT	River Flood Warning	EWX	Bexar	7 hr
Apr 24, 8:26 AM CDT	Areal Flood Advisory	EWX	Bexar	109 min
Apr 24, 9:36 AM CDT	Areal Flood Advisory	EWX	Bastrop, Caldwell	114 min
Apr 24, 10:42 AM CDT	River Flood Warning	EWX	Caldwell, Gonzales	23 hr
Apr 24, 2:15 PM CDT	Flash Flood Watch	EWX	Atascosa, Bastrop, Bexar, Caldwell, DeWitt, Fayette and 8 more	12 hr
Apr 24, 5:16 PM CDT	Special Weather Statement	EWX	Maverick	44 min
Apr 24, 5:49 PM CDT	Special Weather Statement	EWX	Kinney	56 min
Apr 24, 6:15 PM CDT	Special Weather Statement	EWX	Kinney	45 min
Apr 24, 6:18 PM CDT	Special Weather Statement	EWX	Kinney	42 min
Apr 24, 6:22 PM CDT	Severe Thunderstorm Warning	EWX	Kinney, Uvalde	38 min
Apr 24, 6:37 PM CDT	Severe Thunderstorm Warning	EWX	Maverick	23 min
Apr 24, 6:55 PM CDT	Special Weather Statement	EWX	Dimmit	50 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.