Alert archive / Texas / Flash Flood Warnings in 2014

Flash Flood Warning 45, NWS Austin/San Antonio, TX

August 30, 2014Gillespie County, Kerr County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Aug 30, 2014, 7:29 PM CDT for Gillespie County, Kerr County, Texas. It was in force for 2 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
Aug 30, 2014, 7:29 PM CDT (00:29 UTC)
Expired
Aug 30, 2014, 9:30 PM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Flood severity
None

Counties Gillespie County, TX, Kerr County, TX

The radar

The Austin/San Antonio radar (KEWX), 128 km from the middle of the area, began a volume at 00:29 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
Aug 30, 8:20 PM CDTFLASH FLOOD4 Nne Harper, TXLOW WATER CROSSING BETWEEN DOSS AND HARPER ON RANCH ROAD 783 HAS ABOUT 1.5 FEET OF WATER OVER ROADWAY.

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, 0.5 hours before the alert went out and 196 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 2014-08-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 888 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 2014-08-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 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
888 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
2463 m above ground
0-6 km bulk shear
24 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
72 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

Open this sounding in Storm Lab

The text

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

238 
WGUS54 KEWX 310029
FFWEWX
TXC171-265-310230-
/O.NEW.KEWX.FF.W.0045.140831T0029Z-140831T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
729 PM CDT SAT AUG 30 2014

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  WESTERN GILLESPIE COUNTY IN SOUTH CENTRAL TEXAS...
  NORTH CENTRAL KERR COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 930 PM CDT

* AT 726 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE
  DETERMINED THAT RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE
  FLASH FLOODING FROM A THUNDERSTORM OVER THE WARNED AREA.

* LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO   
  CRABAPPLE...HILLTOP...HARPER...MOUNTAIN HOME...CHERRY SPRING... 
  DOSS...HIGHWAY 290 AND FARM TO MARKET ROAD 763

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.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

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 3050 9872 3013 9901 3013 9949 3030 9941
      3030 9931 3050 9931

$$


TOMASELLI
4 follow-up statements
431 
WGUS74 KEWX 310054
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
754 PM CDT SAT AUG 30 2014

TXC171-265-310230-
/O.CON.KEWX.FF.W.0045.000000T0000Z-140831T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GILLESPIE TX-KERR TX-
754 PM CDT SAT AUG 30 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR NORTH
CENTRAL KERR AND WESTERN GILLESPIE COUNTIES...

AT 750 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A THUNDERSTORM
PRODUCING FLASH FLOODING OVER THE WARNED AREA. AND AT 743 PM CDT...A 
RAINFALL GAGE 8 MILES NORTH OF HARPER REPORTED 1.18 INCHES OF RAINFALL
SINCE THE EVENT BEGAN. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CRABAPPLE...
HILLTOP...HARPER...MOUNTAIN HOME...CHERRY SPRING...DOSS...HIGHWAY 
290 AND FARM TO MARKET ROAD 763.

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.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

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 3050 9872 3013 9901 3013 9949 3030 9941
      3030 9931 3050 9931

$$


TOMASELLI
400 
WGUS74 KEWX 310129
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
829 PM CDT SAT AUG 30 2014

TXC171-265-310230-
/O.CON.KEWX.FF.W.0045.000000T0000Z-140831T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GILLESPIE TX-KERR TX-
829 PM CDT SAT AUG 30 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR NORTH
CENTRAL KERR AND WESTERN GILLESPIE COUNTIES...

AT 819 PM CDT...THE PUBLIC REPORTED FLOODING AT A LOW-WATER CROSSING 
WITH DEBRIS CONSISTING OF TREE LIMBS ON THE ROAD NEAR DOSS. AND AT 820 
PM CDT...THE GILLESPIE COUNTY SHERIFFS DEPARTMENT REPORTED 1.5 FEET OF 
WATER ON FARM TO MARKET ROAD 783 NORTH AT A LOW-WATER CROSSING BETWEEN 
HARPER AND DOSS. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CRABAPPLE...
HILLTOP...HARPER...MOUNTAIN HOME...CHERRY SPRING...DOSS...HIGHWAY 
290 AND FARM TO MARKET ROAD 763. 

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.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

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 3050 9872 3013 9901 3013 9949 3030 9941
      3030 9931 3050 9931

$$


TOMASELLI
943 
WGUS74 KEWX 310211
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
911 PM CDT SAT AUG 30 2014

TXC171-265-310230-
/O.CON.KEWX.FF.W.0045.000000T0000Z-140831T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GILLESPIE TX-KERR TX-
911 PM CDT SAT AUG 30 2014

...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 930 PM CDT FOR NORTH
CENTRAL KERR AND WESTERN GILLESPIE COUNTIES...

AT 906 PM CDT...HEAVY RAINFALL WITHIN THE WARNED AREA IS RAPIDLY 
COMING TO AN END. HOWEVER...HEAVIER RAINFALL FROM EARLIER WILL 
CONTINUE TO POSE A FLASH FLOOD THREAT WITHIN THE WARNED AREA. AND 
AT 905 PM CDT...A RAINFALL GAGE 8 MILES NORTHEAST OF HARPER RECORDED
A TOTAL RAINFALL AMOUNT OF 1.66 INCHES DURING THE TWO-HOUR FLASH 
FLOOD EVENT. 

LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CRABAPPLE...
HILLTOP...HARPER...MOUNTAIN HOME...CHERRY SPRING...DOSS...HIGHWAY 
290 AND FARM TO MARKET ROAD 763. 

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
UP TO HIGHER GROUND TO ESCAPE FLOOD WATERS. DO NOT STAY IN AREAS
SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY. MOVE TO HIGHER GROUND.

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 3050 9872 3013 9901 3013 9949 3030 9941
      3030 9931 3050 9931

$$


TOMASELLI
722 
WGUS74 KEWX 310226
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
926 PM CDT SAT AUG 30 2014

TXC171-265-310236-
/O.EXP.KEWX.FF.W.0045.000000T0000Z-140831T0230Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GILLESPIE TX-KERR TX-
926 PM CDT SAT AUG 30 2014

...THE FLASH FLOOD WARNING WILL EXPIRE AT 930 PM CDT FOR NORTH
CENTRAL KERR AND WESTERN GILLESPIE COUNTIES...

LAT...LON 3050 9872 3013 9901 3013 9949 3030 9941
      3030 9931 3050 9931

$$


TOMASELLI

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 30, 7:04 PM CDTAreal Flood AdvisoryEWXReal116 min
Aug 30, 7:09 PM CDTAreal Flood AdvisoryEWXGillespie, Kerr111 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.