Alert archive / Texas / Flash Flood Warnings in 2016

Flash Flood Warning 72, NWS Austin/San Antonio, TX

August 17, 2016Burnet County, Travis County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Aug 17, 2016, 12:31 AM CDT for Burnet County, Travis County, Texas. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Aug 17, 2016, 12:31 AM CDT (05:31 UTC)
Expired
Aug 17, 2016, 3:30 AM CDT
In force
3 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Flood severity
None

Counties Burnet County, TX, Travis County, TX

The radar

The Ft Hood radar (KGRK), 81 km from the middle of the area, began a volume at 05:34 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

Fort Worth, TX (KFWD), launched 00:00Z, 5.5 hours before the alert went out and 263 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, Fort Worth, TX at 00:00Z on 2016-08-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 50 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, Fort Worth, TX at 00:00Z on 2016-08-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 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
50 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
987 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
-11 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.0

Open this sounding in Storm Lab

The text

As transmitted.

261 
WGUS54 KEWX 170531
FFWEWX
TXC053-453-170830-
/O.NEW.KEWX.FF.W.0072.160817T0531Z-160817T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1231 AM CDT WED AUG 17 2016

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN BURNET COUNTY IN SOUTH CENTRAL TEXAS...
  NORTHWESTERN TRAVIS COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 330 AM CDT

* AT 1230 AM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
  HEAVY RAIN ACROSS THE WARNED AREA. 1 TO 2 INCHES OF RAIN HAVE
  ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  KINGSLAND...MARBLE FALLS...LAGO VISTA...GRANITE SHOALS...
  HORSESHOE BAY...MEADOWLAKES...HIGHLAND HAVEN...
  INKS LAKE STATE PARK...SPICEWOOD...SMITHWICK...
  BRIARCLIFF AND COTTONWOOD SHORES.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST FLOOD
DEATHS OCCUR IN VEHICLES.

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

&&

LAT...LON 3064 9804 3061 9804 3062 9801 3061 9800
      3062 9795 3041 9803 3042 9812 3049 9835
      3056 9835 3057 9837 3057 9841 3060 9840
      3067 9844 3068 9840 3070 9842 3074 9837

$$

RUNYEN
1 follow-up statement
737 
WGUS74 KEWX 170633
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
133 AM CDT WED AUG 17 2016

TXC053-453-170830-
/O.CON.KEWX.FF.W.0072.000000T0000Z-160817T0830Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BURNET TX-TRAVIS TX-
133 AM CDT WED AUG 17 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 330 AM CDT FOR
SOUTHWESTERN BURNET AND NORTHWESTERN TRAVIS COUNTIES...

AT 123 AM CDT...DOPPLER RADAR INDICATED SHOWERS AND A FEW
THUNDERSTORMS PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. RADAR AND
GAUGE DATA SHOWS BETWEEN 1 AND 1.5 INCHES OF RAINFALL HAS FALLEN
OVER SOUTHWESTERN BURNET AND NORTHWESTERN TRAVIS COUNTIES OVER THE
LAST HOUR. THIS HAS LEAD TO THE CLOSURE OF SOME LOW WATER CROSSINGS
ON COMMERCE...BROADWAY AND MAIN STREETS. MOTORISTS SHOULD USE
EXTREME CAUTION AND BE ALERT FOR FLOODED LOW WATER CROSSINGS.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
KINGSLAND...MARBLE FALLS...LAGO VISTA...GRANITE SHOALS...
HORSESHOE BAY...MEADOWLAKES...HIGHLAND HAVEN...
INKS LAKE STATE PARK...SPICEWOOD...SMITHWICK...
BRIARCLIFF AND COTTONWOOD SHORES.

ADDITIONAL RAINFALL AMOUNTS OF 1 TO 1.5 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

TURN AROUND...DON'T DROWN WHEN ENCOUNTERING FLOODED ROADS. MOST
FLOOD DEATHS OCCUR IN VEHICLES.

&&

LAT...LON 3064 9804 3061 9804 3062 9801 3061 9800
      3062 9795 3041 9803 3042 9812 3049 9835
      3056 9835 3057 9837 3057 9841 3060 9840
      3067 9844 3068 9840 3070 9842 3074 9837

$$

PLATT

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 16, 7:16 PM CDTAreal Flood AdvisoryEWXBastrop, Lee, Williamson119 min
Aug 16, 9:25 PM CDTRiver Flood WarningEWXTravis14 hr
Aug 16, 10:58 PM CDTAreal Flood AdvisoryEWXTravis2 hr
Aug 16, 11:48 PM CDTFlash Flood WarningEWXTravis3 hr
Aug 17, 2:01 AM CDTAreal Flood AdvisoryEWXBurnet3 hr
Aug 17, 3:56 AM CDTAreal Flood AdvisoryEWXBexar2 hr
Aug 17, 4:12 AM CDTAreal Flood AdvisoryEWXWilliamson2 hr
Aug 17, 6:37 AM CDTRiver Flood WarningEWXTravis16 hr
Aug 17, 12:03 PM CDTAreal Flood AdvisoryEWXBastrop, Caldwell, Travis, Williamson3 hr
Aug 17, 4:49 PM CDTAreal Flood AdvisoryEWXKendall116 min
Aug 17, 4:59 PM CDTAreal Flood AdvisoryEWXBexar2 hr
Aug 17, 5:41 PM CDTAreal Flood AdvisoryEWXLlano2 hr
Aug 17, 5:48 PM CDTAreal Flood AdvisoryEWXBandera117 min
Aug 17, 6:05 PM CDTFlash Flood WarningEWXLlano115 min
Aug 17, 6:15 PM CDTFlash Flood WarningEWXBandera, Kendall, Kerr3 hr
Aug 17, 6:43 PM CDTAreal Flood AdvisoryEWXMedina2 hr

Nearby

Flash Flood Warnings in Texas, 2016Every flash flood warning in 2016

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.