Alert archive / Texas / Flash Flood Warnings in 2015

Flash Flood Warning 48, NWS Austin/San Antonio, TX

May 23, 2015Edwards County, Real County, Uvalde County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 23, 2015, 3:45 AM CDT for Edwards County, Real County, Uvalde County, Texas. It was in force for 4 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, 3:45 AM CDT (08:45 UTC)
Expired
May 23, 2015, 7:45 AM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Flood severity
None

Counties Edwards County, TX, Real County, TX, Uvalde County, TX

The radar

The Laughlin AFB radar (KDFX), 43 km from the middle of the area, began a volume at 08:45 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 23, 5:22 AM CDTFLASH FLOOD8 Se Vance, TX13 MILE LONG ROAD CLOSURE OF FM ROAD 337 FROM MILE MARKER 408 TO 421.
May 23, 5:59 AM CDTHEAVY RAIN 4.17 Ne Camp Wood, TX
May 23, 7:00 AM CDTFLASH FLOODMontell, TXMAVERICK CROSSING CLOSED DUE TO FLASH FLOODING
May 23, 7:00 AM CDTHEAVY RAIN 2.855 Sse Camp Wood, TXRAINFALL FROM EARLY THIS MORNING

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, 8.8 hours before the alert went out and 87 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 2015-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1293 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 2015-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 90 square meters per square second.193958Sfc1 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
1293 J/kg
Mixed-layer CIN
-99 J/kg
Mixed-layer LCL
1202 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
90 m²/s²
0-3 km storm-relative helicity
124 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

218 
WGUS54 KEWX 230845
FFWEWX
TXC137-385-463-231245-
/O.NEW.KEWX.FF.W.0048.150523T0845Z-150523T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN REAL COUNTY IN SOUTH CENTRAL TEXAS...
  SOUTH CENTRAL EDWARDS COUNTY IN SOUTH CENTRAL TEXAS...
  NORTHWESTERN UVALDE COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 745 AM CDT
    
* AT 343 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAVE 
  ALREADY FALLEN IN THE VICINITY OF MONTELL OR AROUND 10 MILES SOUTH 
  OF BARKSDALE. ANOTHER AREA OF 2 TO 3 INCH RAINFALL IS ESTIMATED TO 
  HAVE FALLEN OVER THE HEADWATERS OF THE DRY FRIO RIVER OR ABOUT 10 
  MILES NORTHWEST OF REAGAN WELLS. FLASH FLOODING IS EXPECTED TO 
  BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  LEAKEY...CAMP WOOD...LAGUNA...VANCE...MONTELL...REAGAN WELLS...TUFF
  AND BARKSDALE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING. IF FLASH FLOODING IS OBSERVED ACT QUICKLY. MOVE
TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS SUBJECT
TO FLOODING WHEN WATER BEGINS RISING.

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 2931 10003 2951 10011 2991 10013 2992 9974
      2951 9976 2930 9991

$$

MO
1 follow-up statement
442 
WGUS74 KEWX 231035
FFSEWX

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

TXC137-385-463-231245-
/O.CON.KEWX.FF.W.0048.000000T0000Z-150523T1245Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
REAL TX-EDWARDS TX-UVALDE TX-
535 AM CDT SAT MAY 23 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 745 AM CDT FOR
SOUTHWESTERN REAL...SOUTH CENTRAL EDWARDS AND NORTHWESTERN UVALDE
COUNTIES...

AT 530 AM CDT...DOPPLER RADAR CONTINUED TO INDICATE THUNDERSTORMS 
PRODUCING HEAVY RAIN ACROSS NORTHERN PORTIONS OF THE WARNED 
AREA...WITH THE HEAVIEST RAINS OCCURRING OVER THE HEADWATERS OF THE 
FRIO AND DRY FRIO RIVERS. DOPPLER RADAR ESTIMATED 4 TO 6 INCHES OF 
RAIN HAS ALREADY FALLEN MIDWAY BETWEEN CAMP WOOD AND LEAKEY...OR 
NEAR FM ROAD 337 AND THE DRY FRIO RIVER...SOUTHWARD TO NEAR THE 
UVALDE COUNTY LINE. LIFE THREATENING FLASH FLOODING MAY ALREADY BE 
OCCURRING NEAR ALONG THE DRY FRIO RIVER FROM FM ROAD 337 TO 5 MILES 
NORTHWEST OF REAGAN WELLS.
 
SOME OTHER LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE... 
LEAKEY...CAMP WOOD...LAGUNA...VANCE...MONTELL...REAGAN WELLS...TUFF 
AND BARKSDALE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE 
DANGERS OF FLOODING. DO NOT ENTER OR CROSS FLOWING WATER OR WATER OF 
UNKNOWN DEPTH. 

&&

LAT...LON 2931 10003 2951 10011 2991 10013 2992 9974
      2951 9976 2930 9991

$$

MO

The office that day

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

IssuedProductOfficeCountiesLasted
May 23, 3:09 AM CDTAreal Flood AdvisoryEWXEdwards, Kinney, Real, Uvalde3 hr
May 23, 12:37 PM CDTAreal Flood AdvisoryEWXBandera, Kerr, Medina, Real, Uvalde113 min
May 23, 1:01 PM CDTAreal Flood AdvisoryEWXDeWitt, Gonzales, Karnes, Lavaca, Wilson119 min
May 23, 1:28 PM CDTAreal Flood AdvisoryEWXFayette2 hr
May 23, 1:42 PM CDTSpecial Weather StatementEWXFayette48 min
May 23, 2:06 PM CDTSpecial Weather StatementEWXComal39 min
May 23, 2:12 PM CDTRiver Flood WarningEWXUvalde31 hr
May 23, 2:20 PM CDTSpecial Weather StatementEWXBlanco55 min
May 23, 2:26 PM CDTSpecial Weather StatementEWXBastrop64 min
May 23, 2:30 PM CDTSpecial Weather StatementEWXComal45 min
May 23, 2:33 PM CDTSpecial Weather StatementEWXLavaca57 min
May 23, 2:40 PM CDTSevere Thunderstorm WarningEWXVal Verde65 min
May 23, 2:45 PM CDTSpecial Weather StatementEWXWilliamson60 min
May 23, 2:52 PM CDTSpecial Weather StatementEWXHays53 min
May 23, 3:11 PM CDTFlash Flood WarningEWXBandera, Real, Uvalde2 hr
May 23, 3:22 PM CDTSpecial Weather StatementEWXBlanco38 min
May 23, 3:28 PM CDTSpecial Weather StatementEWXFrio47 min
May 23, 3:37 PM CDTAreal Flood AdvisoryEWXVal Verde113 min
May 23, 3:42 PM CDTAreal Flood AdvisoryEWXBexar2 hr
May 23, 3:48 PM CDTSpecial Weather StatementEWXVal Verde42 min
May 23, 4:08 PM CDTFlash Flood WarningEWXEdwards, Kinney, Val Verde3 hr
May 23, 4:12 PM CDTFlash Flood WarningEWXBandera, Bexar, Blanco, Comal, Kendall, Kerr and 1 more9 hr
May 23, 4:50 PM CDTFlash Flood WarningEWXBandera, Edwards, Kerr, Real6 hr
May 23, 5:03 PM CDTSpecial Weather StatementEWXUvalde27 min
May 23, 5:14 PM CDTFlash Flood WarningEWXBandera, Medina, Real, Uvalde3 hr
May 23, 5:31 PM CDTSpecial Weather StatementEWXUvalde59 min
May 23, 5:46 PM CDTSpecial Weather StatementEWXComal44 min
May 23, 5:51 PM CDTSevere Thunderstorm WarningEWXUvalde39 min
May 23, 5:57 PM CDTTornado WarningEWXComal33 min
May 23, 6:05 PM CDTRiver Flood WarningEWXBandera28 hr
May 23, 6:29 PM CDTFlash Flood WarningEWXBlanco, Gillespie6 hr
May 23, 6:39 PM CDTSpecial Weather StatementEWXZavala51 min
May 23, 6:45 PM CDTSevere Thunderstorm WarningEWXBlanco45 min

Nearby

Flash Flood Warnings in Texas, 2015Every 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.