Alert archive / Texas / Flash Flood Warnings in 2018

Flash Flood Warning 59, NWS Austin/San Antonio, TX

October 15, 2018Burnet County, Texas

NWS Austin/San Antonio, TX issued this flash flood warning at Oct 15, 2018, 10:27 PM CDT for Burnet 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
Oct 15, 2018, 10:27 PM CDT (03:27 UTC)
Expired
Oct 16, 2018, 12:30 AM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Flood severity
None

County Burnet County, TX

The radar

The Ft Hood radar (KGRK), 89 km from the middle of the area, began a volume at 03:30 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 15, 10:38 PM CDTFLASH FLOOD1 Se Inks Lake State Pa, TXCR 2342 IS CLOSING DUE TO HIGH WATER AND CR 116/FM 3509 IS IMPASSABLE DUE TO WATER.

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 00:00Z, 3.5 hours before the alert went out and 242 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 2018-10-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2018-10-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 207 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
730 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
207 m²/s²
0-3 km storm-relative helicity
446 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

069 
WGUS54 KEWX 160327
FFWEWX
TXC053-160530-
/O.NEW.KEWX.FF.W.0059.181016T0327Z-181016T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
Flash Flood Warning
National Weather Service Austin/San Antonio TX
1027 PM CDT MON OCT 15 2018

The National Weather Service in Austin San Antonio has issued a

* Flash Flood Warning for...
  Burnet County in south central Texas...

* Until 1230 AM CDT

* At 1025 PM CDT, Doppler radar and automated rain gauges indicated
  thunderstorms producing heavy rain across the warned area. Up to 
  one inch of rain has already fallen on top of an estimated three 
  to four inches earlier today. Flash flooding is expected to begin 
  shortly.

* Some locations that will experience flooding include...
  Burnet, Marble Falls, Kingsland, Bertram, Buchanan Dam, Granite
  Shoals, Buchanan Lake Village, Highland Haven, Inks Lake State
  Park, Watson, Oatmeal, Briggs, Lake Victor, Mahomet, Sunnylane,
  Longhorn Cavern State Park, Joppa, Shady Grove and Tow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

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.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3103 9790 3090 9783 3079 9796 3061 9806
      3061 9841 3067 9844 3068 9840 3070 9842
      3074 9837 3075 9843 3079 9843 3083 9838
      3083 9842 3086 9842 3088 9846 3092 9845
      3093 9841 3096 9845 3101 9846 3103 9844

$$

HUFFMAN
1 follow-up statement
586 
WGUS74 KEWX 160349
FFSEWX

Flash Flood Statement
National Weather Service Austin/San Antonio TX
1049 PM CDT MON OCT 15 2018

TXC053-160530-
/O.CON.KEWX.FF.W.0059.000000T0000Z-181016T0530Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
Burnet TX-
1049 PM CDT MON OCT 15 2018

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 1230 AM CDT FOR
BURNET COUNTY...

At 1048 PM CDT, local law enforcement reported flash flooding in 
Inks Lake State Park with County Road 2342 closing due to high 
water. County Road 116 and Farm-to-Market 3509 is impassible due to 
high water. Up to one inch of rain has already fallen. Flash 
flooding is already occurring.

Some locations that will experience flooding include...
Burnet, Marble Falls, Kingsland, Bertram, Buchanan Dam, Granite
Shoals, Buchanan Lake Village, Highland Haven, Inks Lake State Park,
Watson, Oatmeal, Briggs, Lake Victor, Mahomet, Sunnylane, Longhorn
Cavern State Park, Joppa, Shady Grove and Tow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be especially cautious at night when it is harder to recognize the
dangers of flooding.

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.

A Flash Flood Warning means that flooding is imminent or occurring.
If you are in the warned area move to higher ground immediately.
Residents living along streams and creeks should take immediate
precautions to protect life and property.

&&

LAT...LON 3103 9790 3090 9783 3079 9796 3061 9806
      3061 9841 3067 9844 3068 9840 3070 9842
      3074 9837 3075 9843 3079 9843 3083 9838
      3083 9842 3086 9842 3088 9846 3092 9845
      3093 9841 3096 9845 3101 9846 3103 9844

$$

HUFFMAN

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 15, 7:20 PM CDTRiver Flood WarningEWXKerr38 hr
Oct 15, 8:10 PM CDTFlash Flood WarningEWXBlanco, Gillespie5 hr
Oct 15, 8:35 PM CDTFlash Flood WarningEWXEdwards, Kerr, Real6 hr
Oct 15, 8:52 PM CDTRiver Flood WarningEWXKerr42 hr
Oct 15, 9:04 PM CDTAreal Flood AdvisoryEWXBurnet6 hr
Oct 15, 10:38 PM CDTRiver Flood WarningEWXLlano28 hr
Oct 15, 10:38 PM CDTRiver Flood WarningEWXGillespie4 hr
Oct 15, 10:38 PM CDTRiver Flood WarningEWXBlanco30 hr
Oct 16, 12:31 AM CDTFlash Flood WarningEWXBurnet, Gillespie, Llano3 hr
Oct 16, 2:30 AM CDTFlash Flood WarningEWXEdwards, Kerr, Real3 hr
Oct 16, 3:32 AM CDTFlash Flood WarningEWXGillespie, Llano18 hr
Oct 16, 6:17 AM CDTRiver Flood WarningEWXWilliamson15 hr
Oct 16, 7:18 AM CDTRiver Flood WarningEWXKendall26 hr
Oct 16, 9:32 AM CDTFlash Flood WarningEWXBurnet12 hr

Nearby

Flash Flood Warnings in Texas, 2018Every flash flood warning in 2018

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.