Alert archive / Texas / Flash Flood Warnings in 2012
Flash Flood Warning 65, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 26, 2012, 12:33 PM CDT for Bexar County, Texas. It was in force for 117 min. 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 26, 2012, 12:33 PM CDT (17:33 UTC)
- Expired
- Oct 26, 2012, 2:30 PM CDT
- In force
- 117 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Flood severity
- None
County Bexar County, TX
The radar
The Austin/San Antonio radar (KEWX), 45 km from the middle of the area, began a volume at 17:35 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 |
|---|---|---|---|
| Oct 26, 1:13 PM CDT | FLASH FLOOD | San Antonio, TX | FLASH FLOODING CAUSED ROAD CLOSURE ON VANCE JACKSON AT ORSINGER |
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 12:00Z, 5.6 hours before the alert went out and 224 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
- 2366 J/kg
- Mixed-layer CIN
- -2 J/kg
- Mixed-layer LCL
- 637 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 5 m²/s²
- Significant tornado parameter
- -0.1
- Supercell composite
- -0.8
The text
As transmitted, in the capitals the NWS used until 2016.
599
WGUS54 KEWX 261733
FFWEWX
TXC029-261930-
/O.NEW.KEWX.FF.W.0065.121026T1733Z-121026T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1233 PM CDT FRI OCT 26 2012
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* FLASH FLOOD WARNING FOR...
BEXAR COUNTY...
* UNTIL 230 PM CDT.
* AT 1230 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS HAVE
DETERMINED THAT RAINFALL ESTIMATES FROM DOPPLER RADAR INDICATE SLOW
MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS CENTRAL AND
EASTERN BEXAR COUNTY. DOPPLER RADAR ESTIMATES ONE TO TWO INCHES OF
RAIN HAS FALLEN OVER THE AREA AND AN ADDITIONAL INCH OF RAINFALL
IS POSSIBLE.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...SAN
ANTONIO...ALAMO HEIGHTS...CALAVERAS LAKE...CHINA GROVE...
ELMENDORF...HOLLYWOOD PARK...KIRBY...LACKLAND AFB...LEON VALLEY...
LIVE OAK...OLMOS PARK...SHAVANO PARK...ST. HEDWIG...TERRELL HILLS
AND WINDCREST.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
RUNOFF FROM HEAVY RAIN WILL FLOOD CREEKS, STREAMS, STREET
INTERSECTIONS, CULVERTS AND UNDERPASSES. LOW LYING PLACES THAT
NORMALLY FLOOD COULD BECOME DEATH TRAPS. DO NOT CROSS ANY FLOODED
AREA. TURN AROUND DON'T DROWN.
&&
LAT...LON 2968 9840 2955 9832 2946 9816 2917 9837
2934 9865 2962 9868
$$1 follow-up statement
996
WGUS74 KEWX 261837
FFSEWX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
137 PM CDT FRI OCT 26 2012
TXC029-261930-
/O.CON.KEWX.FF.W.0065.000000T0000Z-121026T1930Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BEXAR TX-
137 PM CDT FRI OCT 26 2012
...A FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL 230 PM CDT FOR BEXAR
COUNTY...
AT 113 PM CDT...THE CITY OF SAN ANTONIO PUBLIC WORKS REPORTED
SEVERAL ROAD CLOSURES IN SAN ANTONIO DUE TO WATER OVER THE ROADWAY.
ROAD CLOSURES INCLUDE LESLIE ROAD FROM BRAUN TO LOOP 1604 AND VANCE
JACKSON AT ORSINGER.
AT 124 PM CDT...NATIONAL WEATHER SERVICE METEOROLOGISTS CONTINUED TO
DETECT SHOWERS AND THUNDERSTORMS OVER MUCH OF BEXAR COUNTY. WHILE
THE HEAVIEST ACTIVITY HAS MOVED EAST OF THE CITY...AN ADDITIONAL ONE
HALF INCH OF RAINFALL REMAINS POSSIBLE. ANY ADDITIONAL RAINFALL WILL
ONLY AGGRAVATE ONGOING FLOODING...THUS THE FLASH FLOOD WARNING FOR
BEXAR COUNTY REMAINS IN EFFECT.
LOCATIONS IN THE WARNING AREA INCLUDE CASTLE HILLS...TERRELL
HILLS...SOUTHTON...SHAVANO PARK...LEON SPRINGS...HOLLYWOOD PARK AND
ALAMO HEIGHTS.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
RUNOFF FROM HEAVY RAIN WILL FLOOD CREEKS, STREAMS, STREET
INTERSECTIONS, CULVERTS AND UNDERPASSES. LOW LYING PLACES THAT
NORMALLY FLOOD COULD BECOME DEATH TRAPS. DO NOT CROSS ANY FLOODED
AREA. TURN AROUND DON'T DROWN.
WHEN WATER COVERS THE ROAD...TURN AROUND DON'T DROWN. THE LIFE YOU
SAVE MAY BE YOUR OWN.
&&
LAT...LON 2968 9840 2955 9832 2946 9816 2917 9837
2934 9865 2962 9868
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 26, 11:48 AM CDT | Areal Flood Advisory | EWX | Bexar | 102 min |
| Oct 26, 12:40 PM CDT | Special Weather Statement | EWX | Wilson | 50 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.