Alert archive / Texas / Flash Flood Warnings in 2014

Flash Flood Warning 28, NWS Austin/San Antonio, TX

June 25, 2014Atascosa County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Jun 25, 2014, 6:07 PM CDT for Atascosa County, Texas. It was in force for 113 min. 1 report 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: Jun 25, 2014, 6:07 PM CDT (23:07 UTC)
Expired: Jun 25, 2014, 8:00 PM CDT
In force: 113 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Flood severity: None

County Atascosa County, TX

The radar

The Austin/San Antonio radar (KEWX), 104 km from the middle of the area, began a volume at 23:08 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
Jun 25, 6:14 PM CDT	FLASH FLOOD	Pleasanton, TX	HIGHWAY 281 IN TOWN IS FLOODED WITH A FEW FEET OF WATER ACROSS THE ROADWAY

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, 11.1 hours before the alert went out and 155 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: 2541 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 659 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: -22 m²/s²
0-3 km storm-relative helicity: -11 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -1.4

Open this sounding in Storm Lab

The text

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

389 
WGUS54 KEWX 252307
FFWEWX
TXC013-260100-
/O.NEW.KEWX.FF.W.0028.140625T2307Z-140626T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
607 PM CDT WED JUN 25 2014

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN ATASCOSA COUNTY IN SOUTH CENTRAL TEXAS...
  THIS INCLUDES THE CITIES OF...PLEASANTON...JOURDANTON...
  CAMPBELLTON...

* UNTIL 800 PM CDT

* AT 604 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE
  DETERMINED THAT RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE     
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA. LOCAL     
  SHERIFFS DEPARTMENT ALSO REPORTED SEVERAL STREETS CLOSED IN        
  THE CITY OF PLEASANTON. 

* THE STORM PRODUCING FLASH FLOODING WILL OTHERWISE REMAIN OVER      
  PLEASANTON AND AREAS TO THE EAST.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. NEVER DRIVE YOUR VEHICLE INTO
AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY
DEEPER THAN THEY APPEAR. JUST ONE FOOT OF FLOWING WATER IS POWERFUL
ENOUGH TO SWEEP VEHICLES OFF THE ROAD. WHEN ENCOUNTERING FLOODED
ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

&&

LAT...LON 2863 9833 2900 9864 2911 9841 2888 9820
      2879 9810 2864 9832

$$

1 follow-up statement

772 
WGUS74 KEWX 260055
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
755 PM CDT WED JUN 25 2014

TXC013-260106-
/O.EXP.KEWX.FF.W.0028.000000T0000Z-140626T0100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
ATASCOSA TX-
755 PM CDT WED JUN 25 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 800 PM CDT FOR EASTERN
ATASCOSA COUNTY...

LAT...LON 2863 9833 2900 9864 2911 9841 2888 9820
      2879 9810 2864 9832

$$

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 24, 7:03 PM CDT	Special Weather Statement	EWX	Burnet	42 min
Jun 24, 8:08 PM CDT	Areal Flood Advisory	EWX	Burnet	112 min
Jun 25, 7:14 AM CDT	Flash Flood Warning	EWX	DeWitt, Karnes	3 hr
Jun 25, 7:45 AM CDT	Areal Flood Advisory	EWX	Bexar, Guadalupe, Wilson	105 min
Jun 25, 8:24 AM CDT	Flash Flood Warning	EWX	Bexar, Comal	3 hr
Jun 25, 9:06 AM CDT	Areal Flood Advisory	EWX	Travis	114 min
Jun 25, 9:36 AM CDT	Areal Flood Advisory	EWX	Williamson	114 min
Jun 25, 9:42 AM CDT	Flash Flood Warning	EWX	Bexar	2 hr
Jun 25, 10:28 AM CDT	Areal Flood Advisory	EWX	DeWitt, Karnes	2 hr
Jun 25, 10:39 AM CDT	Areal Flood Advisory	EWX	Burnet, Williamson	111 min
Jun 25, 11:36 AM CDT	Areal Flood Advisory	EWX	Bexar	114 min
Jun 25, 3:44 PM CDT	Special Weather Statement	EWX	Medina	31 min
Jun 25, 5:01 PM CDT	Special Weather Statement	EWX	Zavala	44 min
Jun 25, 5:12 PM CDT	Areal Flood Advisory	EWX	Zavala	108 min
Jun 25, 5:25 PM CDT	Areal Flood Advisory	EWX	DeWitt, Karnes	2 hr
Jun 25, 5:36 PM CDT	Areal Flood Advisory	EWX	Atascosa, Karnes, Wilson	114 min
Jun 25, 5:52 PM CDT	Special Weather Statement	EWX	Kerr	23 min
Jun 25, 6:50 PM CDT	Severe Thunderstorm Warning	EWX	Bandera, Medina, Real, Uvalde	28 min
Jun 25, 6:54 PM CDT	Areal Flood Advisory	EWX	Frio	2 hr

Nearby

Flash Flood Warnings in Texas, 2014 Every flash flood warning in 2014

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.