Alert archive / Texas / Flash Flood Warnings in 2015

Flash Flood Warning 151, NWS Austin/San Antonio, TX

October 24, 2015Edwards County, Val Verde County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Oct 24, 2015, 1:39 AM CDT for Edwards County, Val Verde County, Texas. It was in force for 4 hr. 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
Oct 24, 2015, 1:39 AM CDT (06:39 UTC)
Expired
Oct 24, 2015, 6:00 AM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Flood severity
None

Counties Edwards County, TX, Val Verde County, TX

The radar

The Laughlin AFB radar (KDFX), 115 km from the middle of the area, began a volume at 06:42 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
Oct 24, 5:45 AM CDTFLASH FLOOD8 Sw Rocksprings, TXWATER OVER ROAD AT FM 674 AND CR 520

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, 6.7 hours before the alert went out and 66 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 2015-10-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2209 joules per kilogram.LCLEL10008507005003002001001 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 2015-10-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 70 square meters per square second.1939587897Sfc1 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
2209 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
782 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
70 m²/s²
0-3 km storm-relative helicity
90 m²/s²
Significant tornado parameter
0.6
Supercell composite
7.3

Open this sounding in Storm Lab

The text

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

613 
WGUS54 KEWX 240639
FFWEWX
TXC137-465-241100-
/O.NEW.KEWX.FF.W.0151.151024T0639Z-151024T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

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

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  VAL VERDE COUNTY IN SOUTH CENTRAL TEXAS...
  EDWARDS COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 600 AM CDT
    
* AT 136 AM CDT...DOPPLER RADAR INDICATED A THUNDERSTORM PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA OF VAL VERDE AND NORTHWESTERN
  EDWARDS COUNTIES. UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN
  OVER WESTERN PARTS OF VAL VERDE COUNTY. FLASH FLOODING IS EXPECTED
  TO BEGIN SHORTLY OVER VAL VERDE COUNTY...WITH SLOW MOVING
  THUNDERSTORMS WITH HEAVY RAINS QUICKLY FILLING IN EASTWARD TOWARD
  AMISTAD RESERVOIR AND ROCKSPRINGS.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  ROCKSPRINGS...LANGTRY...JUNO...LOMA ALTA...COMSTOCK...OSMAN...CARTA
  VALLEY...PANDALE...FLOUR MILLS...SHUMLA...PUMPVILLE...SEMINOLE
  CANYON STATE PARK...BOX CANYON-AMISTAD...US-277 NEAR THE
  SUTTON-EDWARDS COUNTY LINE...PAFFORD CROSSING...ROUGH CANYON REC
  AREA...DEVILS SHORES...BAKERS CROSSING...VINEGARONE AND HACKBERRY
  CROSSING.

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 3029 10176 3029 9997 2984 10023 2949 10116
      2953 10126 2963 10127 2958 10131 2965 10130
      2965 10136 2975 10142 2977 10140 2975 10144
      2979 10147 2976 10154 2981 10154 2977 10158
      2978 10176

$$

MO
3 follow-up statements
007 
WGUS74 KEWX 240843
FFSEWX

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

TXC137-465-241100-
/O.CON.KEWX.FF.W.0151.000000T0000Z-151024T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VAL VERDE TX-EDWARDS TX-
343 AM CDT SAT OCT 24 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 600 AM CDT FOR VAL
VERDE AND EDWARDS COUNTIES...

AT 335 AM CDT...DOPPLER RADAR CONTINUES TO INDICATE THUNDERSTORMS
PRODUCING HEAVY RAIN ACROSS PORTIONS OF VAL VERDE AND EDWARDS
COUNTIES. THE HEAVIEST THUNDERSTORM ACTIVITY IS TO THE NORTH OF
COMSTOCK PUSHING TO THE NORTHEAST. KDFX DOPPLER RADAR HAS ESTIMATED
TWO TO THREE INCHES OF RAIN DURING THE PAST THREE HOURS. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ROCKSPRINGS...LANGTRY...JUNO...LOMA ALTA...COMSTOCK...OSMAN...CARTA
VALLEY...PANDALE...FLOUR MILLS...SHUMLA...PUMPVILLE...SEMINOLE CANYON
STATE PARK...BOX CANYON-AMISTAD...US-277 NEAR THE SUTTON-EDWARDS
COUNTY LINE...PAFFORD CROSSING...ROUGH CANYON REC AREA...DEVILS
SHORES...BAKERS CROSSING...VINEGARONE AND HACKBERRY CROSSING.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 3 INCHES OF RAINFALL ARE
POSSIBLE FROM A LINE NORTH OF COMSTOCK NORTHEAST TO NORTHWEST OF
ROCKSPRINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

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

&&

LAT...LON 3029 10176 3029 9997 2984 10023 2949 10116
      2953 10126 2963 10127 2958 10131 2965 10130
      2965 10136 2975 10142 2977 10140 2975 10144
      2979 10147 2976 10154 2981 10154 2977 10158
      2978 10176

$$
871 
WGUS74 KEWX 241037
FFSEWX

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

TXC137-465-241100-
/O.CON.KEWX.FF.W.0151.000000T0000Z-151024T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VAL VERDE TX-EDWARDS TX-
537 AM CDT SAT OCT 24 2015

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 600 AM CDT FOR VAL
VERDE AND EDWARDS COUNTIES...

AT 534 AM CDT...DOPPLER RADAR INDICATED ONLY LIGHT RAINS ACROSS THE
AREA. HOWEVER...DOPPLER RADAR ESTIMATES SHOWED UP TO 6 INCHES OF
RAIN HAS FALLEN ACROSS THE JUNO AREA. FLOODING WILL CONTINUE DUE TO
THE EARLIER HEAVY RAINS. AN ADDITIONAL 1/4 INCH OF RAIN IS EXPECTED. 

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
ROCKSPRINGS...LANGTRY...JUNO...LOMA ALTA...COMSTOCK...OSMAN...CARTA
VALLEY...PANDALE...FLOUR MILLS...SHUMLA...PUMPVILLE...SEMINOLE CANYON
STATE PARK...BOX CANYON-AMISTAD...US-277 NEAR THE SUTTON-EDWARDS
COUNTY LINE...PAFFORD CROSSING...ROUGH CANYON REC AREA...DEVILS
SHORES...BAKERS CROSSING...VINEGARONE AND HACKBERRY CROSSING.



PRECAUTIONARY/PREPAREDNESS ACTIONS...

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

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

&&

LAT...LON 3029 10176 3029 9997 2984 10023 2949 10116
      2953 10126 2963 10127 2958 10131 2965 10130
      2965 10136 2975 10142 2977 10140 2975 10144
      2979 10147 2976 10154 2981 10154 2977 10158
      2978 10176

$$

CP
180 
WGUS74 KEWX 241057
FFSEWX

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

TXC137-465-241106-
/O.EXP.KEWX.FF.W.0151.000000T0000Z-151024T1100Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
VAL VERDE TX-EDWARDS TX-
557 AM CDT SAT OCT 24 2015

...THE FLASH FLOOD WARNING FOR VAL VERDE AND EDWARDS COUNTIES WILL
EXPIRE AT 600 AM CDT...

THE HEAVY RAIN HAS ENDED...AND FLOODING IS NO LONGER EXPECTED TO
POSE A THREAT. HOWEVER...LOW LYING AREAS MAY HAVE PONDING OF WATER
AND SMALL STREAMS MAY HAVE SOME FLOWING WATER FOR THE NEXT HOUR OR
SO DUE TO THE EARLIER HEAVY RAINS. 

LAT...LON 3029 10176 3029 9997 2984 10023 2949 10116
      2953 10126 2963 10127 2958 10131 2965 10130
      2965 10136 2975 10142 2977 10140 2975 10144
      2979 10147 2976 10154 2981 10154 2977 10158
      2978 10176

$$

CP

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 23, 8:19 PM CDTAreal Flood AdvisoryEWXBexar, Comal, Guadalupe116 min
Oct 23, 10:55 PM CDTAreal Flood AdvisoryEWXLlano3 hr
Oct 23, 11:45 PM CDTAreal Flood AdvisoryEWXBurnet, Llano3 hr
Oct 24, 12:28 AM CDTAreal Flood AdvisoryEWXVal Verde4 hr
Oct 24, 1:47 AM CDTAreal Flood AdvisoryEWXAtascosa, Bexar3 hr
Oct 24, 1:50 AM CDTFlash Flood WarningEWXBurnet, Llano4 hr
Oct 24, 2:00 AM CDTAreal Flood AdvisoryEWXBandera, Blanco, Gillespie, Kendall, Kerr, Real4 hr
Oct 24, 3:00 AM CDTFlash Flood WarningEWXBexar, Comal, Guadalupe, Kendall4 hr
Oct 24, 3:06 AM CDTSpecial Weather StatementEWXVal Verde54 min
Oct 24, 3:21 AM CDTAreal Flood AdvisoryEWXWilliamson114 min
Oct 24, 3:29 AM CDTFlash Flood WarningEWXBandera, Edwards, Kerr, Real3 hr
Oct 24, 3:52 AM CDTAreal Flood AdvisoryEWXTravis, Williamson3 hr
Oct 24, 4:23 AM CDTFlash Flood WarningEWXTravis, Williamson7 hr
Oct 24, 4:43 AM CDTAreal Flood AdvisoryEWXEdwards, Kinney, Val Verde3 hr
Oct 24, 4:50 AM CDTFlash Flood WarningEWXBlanco, Comal, Gillespie, Hays, Kendall, Kerr2 hr
Oct 24, 5:53 AM CDTFlash Flood WarningEWXBastrop, Lee6 hr
Oct 24, 6:22 AM CDTFlash Flood WarningEWXEdwards, Real, Uvalde3 hr
Oct 24, 6:37 AM CDTSpecial Weather StatementEWXBastrop, Lee53 min
Oct 24, 6:48 AM CDTFlash Flood WarningEWXBandera, Bexar, Blanco, Caldwell, Comal, Gillespie and 6 more3 hr
Oct 24, 8:16 AM CDTFlash Flood WarningEWXCaldwell, Fayette, Gonzales, Guadalupe3 hr
Oct 24, 8:20 AM CDTRiver Flood WarningEWXVal Verde36 hr
Oct 24, 8:20 AM CDTRiver Flood WarningEWXVal Verde45 hr
Oct 24, 8:20 AM CDTRiver Flood WarningEWXVal Verde32 hr
Oct 24, 8:32 AM CDTAreal Flood AdvisoryEWXMaverick3 hr
Oct 24, 8:46 AM CDTRiver Flood WarningEWXBlanco25 hr
Oct 24, 9:16 AM CDTFlash Flood WarningEWXAtascosa, Bexar, Frio, Karnes, Medina, Wilson3 hr
Oct 24, 9:17 AM CDTFlash Flood WarningEWXDeWitt, Lavaca3 hr
Oct 24, 9:24 AM CDTAreal Flood AdvisoryEWXBandera, Edwards, Kerr, Real3 hr
Oct 24, 9:42 AM CDTFlash Flood WarningEWXBexar, Caldwell, Comal, Guadalupe, Hays2 hr
Oct 24, 9:55 AM CDTAreal Flood AdvisoryEWXBlanco, Gillespie, Kendall, Kerr3 hr
Oct 24, 9:59 AM CDTRiver Flood WarningEWXBexar, Wilson45 hr
Oct 24, 10:04 AM CDTRiver Flood WarningEWXKerr27 hr
Oct 24, 10:04 AM CDTRiver Flood WarningEWXComal, Gonzales, Guadalupe19 hr
Oct 24, 10:04 AM CDTRiver Flood WarningEWXComal, Guadalupe24 hr
Oct 24, 11:09 AM CDTAreal Flood AdvisoryEWXTravis, Williamson6 hr
Oct 24, 11:36 AM CDTAreal Flood AdvisoryEWXBastrop, Lee3 hr
Oct 24, 11:45 AM CDTAreal Flood AdvisoryEWXCaldwell, Fayette, Gonzales, Guadalupe3 hr
Oct 24, 11:57 AM CDTAreal Flood AdvisoryEWXBexar, Caldwell, Comal, Guadalupe, Hays, Wilson3 hr
Oct 24, 12:12 PM CDTAreal Flood AdvisoryEWXAtascosa, Bexar, Frio, Medina, Wilson2 hr
Oct 24, 12:20 PM CDTAreal Flood AdvisoryEWXAtascosa, DeWitt, Karnes, Lavaca115 min
Oct 24, 2:17 PM CDTAreal Flood AdvisoryEWXDeWitt, Karnes, Lavaca, Wilson3 hr
Oct 24, 2:23 PM CDTAreal Flood AdvisoryEWXBastrop, Lee3 hr
Oct 24, 2:30 PM CDTAreal Flood AdvisoryEWXBastrop, Lee3 hr
Oct 24, 2:43 PM CDTAreal Flood AdvisoryEWXCaldwell, Fayette, Gonzales, Guadalupe3 hr
Oct 24, 4:00 PM CDTFlash Flood WatchEWXBastrop, Caldwell, DeWitt, Fayette, Gonzales, Guadalupe and 7 more8 hr

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.