Alert archive / Texas / Flash Flood Warnings in 2016

Flash Flood Warning 18, NWS Austin/San Antonio, TX

May 14, 2016Burnet County, Llano County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at May 14, 2016, 3:21 PM CDT for Burnet County, Llano County, Texas. It was in force for 4 hr. 2 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 14, 2016, 3:21 PM CDT (20:21 UTC)
Expired
May 14, 2016, 7:15 PM CDT
In force
4 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Flood severity
None

Counties Burnet County, TX, Llano County, TX

The radar

The Ft Hood radar (KGRK), 82 km from the middle of the area, began a volume at 20:21 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 14, 3:38 PM CDTHEAVY RAIN 1.683 S Horseshoe Bay, TXRAIN AMOUNT FELL IN THE PAST 90 MINUTES
May 14, 4:05 PM CDTFLASH FLOODMarble Falls, TXA FEW STREETS CLOSED DUE TO HIGH WATER INCLUDING BROADWAY ST AND 9TH... AND 4TH AND 7TH ST

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Fort Worth, TX (KFWD), launched 12:00Z, 8.4 hours before the alert went out and 246 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 12:00Z on 2016-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 49 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 12:00Z on 2016-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -49 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
49 J/kg
Mixed-layer CIN
-161 J/kg
Mixed-layer LCL
1698 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
-49 m²/s²
0-3 km storm-relative helicity
10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

015 
WGUS54 KEWX 142021
FFWEWX
TXC053-299-150015-
/O.NEW.KEWX.FF.W.0018.160514T2021Z-160515T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
321 PM CDT SAT MAY 14 2016

THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  BURNET COUNTY IN SOUTH CENTRAL TEXAS...
  EASTERN LLANO COUNTY IN SOUTH CENTRAL TEXAS...

* UNTIL 715 PM CDT

* AT 319 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS TRAINING AND
  PRODUCING HEAVY RAIN ACROSS THE WARNED AREA OF BURNET AND EASTERN
  LLANO COUNTIES. UP TO THREE INCHES OF RAIN HAVE ALREADY FALLEN...
  AND ANOTHER ROUND OF THUNDERSTORMS SHOULD MOVE OVER THE AREA AND
  PRODUCE ANOTHER 1 TO 2 INCHES OF RAIN. FLASH FLOODING IS EXPECTED
  TO BEGIN SHORTLY.

* SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
  KINGSLAND...MARBLE FALLS...BURNET...BERTRAM...BUCHANAN DAM...
  GAINESVILLE...GRANITE SHOALS...HORSESHOE BAY...MEADOWLAKES...HIGHLAND
  HAVEN...BLUFFTON...SPICEWOOD...OATMEAL...SHADY GROVE...INKS LAKE STATE
  PARK...STOLZ...WATSON...LAKE VICTOR...BRIGGS AND TOW.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED
ROADS. FIND AN ALTERNATE ROUTE.

&&

LAT...LON 3103 9790 3090 9783 3079 9796 3050 9812
      3048 9812 3049 9810 3047 9810 3043 9813
      3050 9840 3050 9861 3092 9855 3093 9842
      3094 9841 3096 9845 3098 9844 3101 9846
      3103 9844

$$

MO
1 follow-up statement
184 
WGUS74 KEWX 142130
FFSEWX

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
430 PM CDT SAT MAY 14 2016

TXC299-142135-
/O.CAN.KEWX.FF.W.0018.000000T0000Z-160515T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LLANO TX-
430 PM CDT SAT MAY 14 2016

...THE FLASH FLOOD WARNING FOR EASTERN LLANO COUNTY IS CANCELLED...

ONLY MINOR RUNOFF CONCERNS ARE EXPECTED OVER SOUTHEAST LLANO
COUNTY...WHERE WHERE THE HEAVY RAIN THREAT IS EXPECTED TO SHIFT
SOUTH. THUS FLASH FLOODING IS NO LONGER EXPECTED OVER LLANO COUNTY.
PLEASE CONTINUE TO HEED ANY REMAINING ROAD CLOSURES.

LAT...LON 3103 9790 3090 9783 3079 9796 3043 9813
      3049 9835 3056 9835 3057 9841 3067 9844
      3068 9840 3070 9842 3074 9837 3075 9843
      3079 9843 3083 9838 3083 9842 3088 9846
      3094 9841 3101 9846 3103 9844

$$

TXC053-150015-
/O.CON.KEWX.FF.W.0018.000000T0000Z-160515T0015Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BURNET TX-
430 PM CDT SAT MAY 14 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 715 PM CDT FOR
BURNET COUNTY...

AT 425 PM CDT...DOPPLER RADAR INDICATED THUNDERSTORMS PRODUCING
HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF RAIN HAS
ALREADY FALLEN FROM THE WEST SIDE OF THE TOWN OF BURNET TO THE
COLORADO RIVER NEAR THE TRAVIS COUNTY LINE. FLASH FLOODING IS LIKELY
OCCURRING OVER MANY PORTIONS OF BURNET COUNTY ALONG AND EAST OF
HIGHWAY 281.

SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
KINGSLAND...MARBLE FALLS...BURNET...BERTRAM...BUCHANAN DAM...GRANITE
SHOALS...HORSESHOE BAY...MEADOWLAKES...HIGHLAND HAVEN...SPICEWOOD...
BRIGGS...MAHOMET...SMITHWICK...OATMEAL...SHADY GROVE...INKS LAKE STATE
PARK...SUNNYLANE...JOPPA...WATSON AND LAKE VICTOR.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

IN HILLY TERRAIN THERE ARE HUNDREDS OF LOW WATER CROSSINGS WHICH ARE
POTENTIALLY DANGEROUS IN HEAVY RAIN. DO NOT ATTEMPT TO CROSS FLOODED
ROADS. FIND AN ALTERNATE ROUTE.

&&

LAT...LON 3103 9790 3090 9783 3079 9796 3043 9813
      3049 9835 3056 9835 3057 9841 3067 9844
      3068 9840 3070 9842 3074 9837 3075 9843
      3079 9843 3083 9838 3083 9842 3088 9846
      3094 9841 3101 9846 3103 9844

$$

MO

The office that day

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

IssuedProductOfficeCountiesLasted
May 13, 8:41 PM CDTSpecial Weather StatementEWXFayette49 min
May 14, 7:27 AM CDTAreal Flood AdvisoryEWXEdwards, Real3 hr
May 14, 8:05 AM CDTFlash Flood WarningEWXEdwards, Real3 hr
May 14, 10:23 AM CDTAreal Flood AdvisoryEWXUvalde3 hr
May 14, 10:29 AM CDTSpecial Weather StatementEWXUvalde46 min
May 14, 11:02 AM CDTSpecial Weather StatementEWXZavala43 min
May 14, 11:08 AM CDTSpecial Weather StatementEWXDimmit52 min
May 14, 11:33 AM CDTSpecial Weather StatementEWXFrio42 min
May 14, 12:03 PM CDTSpecial Weather StatementEWXDimmit42 min
May 14, 12:07 PM CDTSpecial Weather StatementEWXWilliamson38 min
May 14, 12:30 PM CDTAreal Flood AdvisoryEWXDimmit, Maverick, Zavala3 hr
May 14, 12:40 PM CDTSevere Thunderstorm WarningEWXWilliamson50 min
May 14, 1:18 PM CDTSpecial Weather StatementEWXWilliamson42 min
May 14, 1:34 PM CDTAreal Flood AdvisoryEWXTravis, Williamson3 hr
May 14, 1:37 PM CDTAreal Flood AdvisoryEWXFrio3 hr
May 14, 2:01 PM CDTFlash Flood WarningEWXTravis, Williamson3 hr
May 14, 2:32 PM CDTAreal Flood AdvisoryEWXBurnet, Llano3 hr
May 14, 3:32 PM CDTAreal Flood AdvisoryEWXBlanco, Hays, Travis3 hr
May 14, 3:38 PM CDTSpecial Weather StatementEWXVal Verde52 min
May 14, 3:55 PM CDTAreal Flood AdvisoryEWXBastrop, Caldwell, Lee, Williamson4 hr
May 14, 4:07 PM CDTFlash Flood WarningEWXTravis2 hr
May 14, 4:16 PM CDTAreal Flood AdvisoryEWXFayette3 hr
May 14, 4:31 PM CDTSpecial Weather StatementEWXFayette44 min
May 14, 4:40 PM CDTSpecial Weather StatementEWXVal Verde50 min
May 14, 5:02 PM CDTAreal Flood AdvisoryEWXWilliamson118 min

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