Alert archive / Texas / Flash Flood Warnings in 2012
Flash Flood Warning 60, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Sep 13, 2012, 10:44 PM CDT for Blanco County, Gillespie County, Kendall County, Texas. It was in force for 3 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
- Sep 13, 2012, 10:44 PM CDT (03:44 UTC)
- Expired
- Sep 14, 2012, 1:30 AM CDT
- In force
- 3 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Flood severity
- None
Counties Blanco County, TX, Gillespie County, TX, Kendall County, TX
The radar
The Austin/San Antonio radar (KEWX), 63 km from the middle of the area, began a volume at 03:44 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
| Time | Report | Where | Remark |
|---|---|---|---|
| Sep 14, 12:30 AM CDT | FLASH FLOOD | 2 Wnw Kendalia, TX | HIGHWAY 473 AND HEIN ROAD CLOSED DUE TO HIGH WATER. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 3.7 hours before the alert went out and 286 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.
- Mixed-layer CAPE
- 424 J/kg
- Mixed-layer CIN
- -131 J/kg
- Mixed-layer LCL
- 1564 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- 32 m²/s²
- 0-3 km storm-relative helicity
- -10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
687
WGUS54 KEWX 140344
FFWEWX
TXC031-171-259-140630-
/O.NEW.KEWX.FF.W.0060.120914T0344Z-120914T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1044 PM CDT THU SEP 13 2012
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
SOUTHERN BLANCO COUNTY...
SOUTHEASTERN GILLESPIE COUNTY...
KENDALL COUNTY...
* UNTIL 130 AM CDT.
* AT 1042 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE
DETERMINED THAT RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE SLOW
MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE WARNED
AREA. THERE HAVE BEEN RAINFALL REPORTS OF UP TO 4.73 INCHES IN
KENDALL COUNTY AND OVER 5 INCHES IN BLANCO COUNTY EARLIER THIS
EVENING. ADDITIONAL RAIN WILL RUNOFF QUICKLY.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BLANCO...ALBERT...BERGHEIM...FLUGRATH...HYE...JOHNSON CITY...
KENDALIA...KREUTZBERG...LBJ STATE PARK...PAYTON...ROCKY CREEK...
SISTERDALE...TWIN SISTERS...WARING AND WELFARE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IT IS HARD TO RECOGNIZE THE DANGERS OF FLOODING AT NIGHT. IF FLOOD
WATERS RISE ACT QUICKLY. DO NOT STAY IN FLOOD PRONE AREAS.
&&
LAT...LON 3005 9830 2978 9862 2995 9886 3013 9872
3037 9856 3029 9823
$$2 follow-up statements
105
WGUS74 KEWX 140505
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1205 AM CDT FRI SEP 14 2012
TXC031-171-259-140630-
/O.CON.KEWX.FF.W.0060.000000T0000Z-120914T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GILLESPIE TX-KENDALL TX-BLANCO TX-
1205 AM CDT FRI SEP 14 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 130 AM CDT FOR
SOUTHERN BLANCO...KENDALL AND SOUTHEASTERN GILLESPIE COUNTIES...
AT MIDNIGHT CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED
TO DETECT A THUNDERSTORM PRODUCING VERY HEAVY RAIN OVER THE WARNED
AREA.
LOCATIONS IN THE WARNING AREA INCLUDE PAYTON...ROCKY CREEK...HYE...
FLUGRATH...ALBERT...JOHNSON CITY...BLANCO AND LBJ STATE PARK.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
IT IS HARD TO RECOGNIZE THE DANGERS OF FLOODING AT NIGHT. IF FLOOD
WATERS RISE ACT QUICKLY. DO NOT STAY IN FLOOD PRONE AREAS.
&&
LAT...LON 3005 9830 2978 9862 2995 9886 3013 9872
3037 9856 3029 9823
$$505
WGUS74 KEWX 140627
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
127 AM CDT FRI SEP 14 2012
TXC031-171-259-140637-
/O.EXP.KEWX.FF.W.0060.000000T0000Z-120914T0630Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
GILLESPIE TX-KENDALL TX-BLANCO TX-
127 AM CDT FRI SEP 14 2012
...THE FLASH FLOOD WARNING WILL EXPIRE AT 130 AM CDT FOR SOUTHERN
BLANCO...KENDALL AND SOUTHEASTERN GILLESPIE COUNTIES...
LAT...LON 3005 9830 2978 9862 2995 9886 3013 9872
3037 9856 3029 9823
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 13, 7:05 PM CDT | Areal Flood Advisory | EWX | Blanco, Gillespie, Llano | 3 hr |
| Sep 13, 7:28 PM CDT | Areal Flood Advisory | EWX | Bandera, Medina, Uvalde | 3 hr |
| Sep 13, 8:04 PM CDT | Areal Flood Advisory | EWX | Dimmit, Maverick, Zavala | 116 min |
| Sep 13, 9:22 PM CDT | Tornado Warning | EWX | Frio | 23 min |
| Sep 13, 9:53 PM CDT | Areal Flood Advisory | EWX | Bexar, Comal, Kendall | 2 hr |
| Sep 13, 10:01 PM CDT | Areal Flood Advisory | EWX | Frio, Medina | 119 min |
| Sep 13, 10:21 PM CDT | Special Weather Statement | EWX | Frio | 39 min |
| Sep 13, 10:29 PM CDT | Flash Flood Warning | EWX | Bexar, Comal, Guadalupe | 3 hr |
| Sep 14, 12:52 AM CDT | Areal Flood Advisory | EWX | Maverick | 2 hr |
| Sep 14, 1:40 AM CDT | Areal Flood Advisory | EWX | Bexar, Guadalupe, Wilson | 110 min |
| Sep 14, 2:37 AM CDT | Areal Flood Advisory | EWX | Bexar, Comal, Gonzales, Guadalupe | 113 min |
Nearby
Flash Flood Warnings in Texas, 2012Every flash flood warning in 2012
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.