Alert archive / Texas / Flash Flood Warnings in 2014

Flash Flood Warning 46, NWS Austin/San Antonio, TX

September 7, 2014Bandera County, Medina County, Uvalde County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Sep 7, 2014, 5:03 AM CDT for Bandera County, Medina County, Uvalde County, Texas. It was in force for 117 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Sep 7, 2014, 5:03 AM CDT (10:03 UTC)
Expired
Sep 7, 2014, 7:00 AM CDT
In force
117 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Flood severity
None

Counties Bandera County, TX, Medina County, TX, Uvalde County, TX

The radar

The Laughlin AFB radar (KDFX), 92 km from the middle of the area, began a volume at 10:04 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

Del Rio, TX (KDLF), launched 00:00Z, 10.1 hours before the alert went out and 141 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 2014-09-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 272 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 2014-09-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 5 square meters per square second.1939Sfc1 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
272 J/kg
Mixed-layer CIN
-17 J/kg
Mixed-layer LCL
2016 m above ground
0-6 km bulk shear
5 kt
0-1 km storm-relative helicity
5 m²/s²
0-3 km storm-relative helicity
1 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.

064 
WGUS54 KEWX 071003
FFWEWX
TXC019-325-463-071200-
/O.NEW.KEWX.FF.W.0046.140907T1003Z-140907T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
503 AM CDT SUN SEP 7 2014

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN BANDERA COUNTY IN SOUTH CENTRAL TEXAS...
  THIS INCLUDES THE CITIES OF...VANDERPOOL...TARPLEY...
  NORTHWESTERN MEDINA COUNTY IN SOUTH CENTRAL TEXAS...
  NORTHEASTERN UVALDE COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 700 AM CDT

* AT 458 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO LOST MAPLES
  STATE PARK...UTOPIA AND STATE HIGHWAY 16.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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

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 2949 9960 2990 9961 2972 9908 2949 9919

$$


TOMASELLI
3 follow-up statements
052 
WGUS74 KEWX 071103
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
603 AM CDT SUN SEP 7 2014

TXC019-325-463-071200-
/O.CON.KEWX.FF.W.0046.000000T0000Z-140907T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MEDINA TX-UVALDE TX-BANDERA TX-
603 AM CDT SUN SEP 7 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 AM CDT FOR
WESTERN BANDERA...NORTHEASTERN UVALDE AND NORTHWESTERN MEDINA
COUNTIES...

AT 557 AM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A THUNDERSTORM
PRODUCING FLASH FLOODING OVER THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VANDERPOOL... 
LOST MAPLES STATE PARK...TARPLEY...UTOPIA...STATE HIGHWAY 16 AND FARM
TO MARKET ROAD 470

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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

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 2949 9960 2990 9961 2972 9908 2949 9919

$$


TOMASELLI
485 
WGUS74 KEWX 071150
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
650 AM CDT SUN SEP 7 2014

TXC019-325-463-071200-
/O.CON.KEWX.FF.W.0046.000000T0000Z-140907T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MEDINA TX-UVALDE TX-BANDERA TX-
650 AM CDT SUN SEP 7 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 700 AM CDT FOR
WESTERN BANDERA...NORTHEASTERN UVALDE AND NORTHWESTERN MEDINA
COUNTIES...

AT 646 AM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A THUNDERSTORM
PRODUCING FLASH FLOODING OVER THE WARNED AREA.

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VANDERPOOL...
LOST MAPLES STATE PARK...TARPLEY...UTOPIA...STATE HIGHWAY 16 AND FARM
TO MARKET ROAD 470.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE FLOODING OF SMALL
CREEKS AND STREAMS...COUNTRY ROADS...AS WELL AS FARMLAND ALONG THE
BANKS OF CREEKS AND STREAMS.

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

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 2949 9960 2990 9961 2972 9908 2949 9919

$$


TOMASELLI
297 
WGUS74 KEWX 071157
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
657 AM CDT SUN SEP 7 2014

TXC019-325-463-071207-
/O.EXP.KEWX.FF.W.0046.000000T0000Z-140907T1200Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
MEDINA TX-UVALDE TX-BANDERA TX-
657 AM CDT SUN SEP 7 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 700 AM CDT FOR WESTERN
BANDERA...NORTHEASTERN UVALDE AND NORTHWESTERN MEDINA COUNTIES...

LAT...LON 2949 9960 2990 9961 2972 9908 2949 9919

$$


TOMASELLI

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 6, 8:06 PM CDTSpecial Weather StatementEWXWilliamson39 min
Sep 7, 1:11 AM CDTAreal Flood AdvisoryEWXBastrop, Travis, Williamson109 min
Sep 7, 1:33 AM CDTAreal Flood AdvisoryEWXLee117 min
Sep 7, 1:46 AM CDTSpecial Weather StatementEWXLee59 min
Sep 7, 2:43 AM CDTAreal Flood AdvisoryEWXBastrop107 min
Sep 7, 3:32 AM CDTAreal Flood AdvisoryEWXFayette, Lee118 min
Sep 7, 3:53 AM CDTAreal Flood AdvisoryEWXBandera, Kendall, Kerr, Medina2 hr
Sep 7, 5:07 AM CDTSpecial Weather StatementEWXBandera53 min
Sep 7, 5:28 AM CDTAreal Flood AdvisoryEWXGillespie2 hr
Sep 7, 5:42 AM CDTAreal Flood AdvisoryEWXEdwards, Real, Uvalde108 min
Sep 7, 5:46 AM CDTFlash Flood WarningEWXGillespie3 hr
Sep 7, 6:08 AM CDTFlash Flood WarningEWXEdwards, Real, Uvalde2 hr

Nearby

Flash Flood Warnings in Texas, 2014Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.