Alert archive / Texas / Areal Flood Advisories in 2012

Areal Flood Advisory 76, NWS Austin/San Antonio, TX

July 10, 2012Bastrop County, Travis County, Texas

NWS Austin/San Antonio, TX issued this areal flood advisory at Jul 10, 2012, 6:44 AM CDT for Bastrop County, Travis County, Texas. It was in force for 106 min.

The area

The counties it named.

The facts

Issued
Jul 10, 2012, 6:44 AM CDT (11:44 UTC)
Expired
Jul 10, 2012, 8:30 AM CDT
In force
106 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon

Counties Bastrop County, TX, Travis County, TX

The radar

The Ft Hood radar (KGRK), 58 km from the middle of the area, began a volume at 11:44 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.

The nearest sounding before it

Corpus Christi, TX (KCRP), launched 00:00Z, 11.7 hours before the alert went out and 278 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, Corpus Christi, TX at 00:00Z on 2012-07-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1368 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Corpus Christi, TX at 00:00Z on 2012-07-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -7 square meters per square second.1939Sfc1 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
1368 J/kg
Mixed-layer CIN
-66 J/kg
Mixed-layer LCL
1264 m above ground
0-6 km bulk shear
19 kt
0-1 km storm-relative helicity
-7 m²/s²
0-3 km storm-relative helicity
70 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.7

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 10, 7:06 AM CDTFlash Flood WarningEWXBastrop, Travis114 min
Jul 10, 8:53 AM CDTFlash Flood WarningEWXBastrop, Travis3 hr
Jul 10, 10:06 AM CDTAreal Flood AdvisoryEWXFrio, Medina114 min
Jul 10, 3:53 PM CDTAreal Flood AdvisoryEWXMedina, Uvalde2 hr
Jul 10, 6:48 PM CDTAreal Flood AdvisoryEWXBandera, Edwards, Real2 hr

Nearby

Areal Flood Advisories in Texas, 2012Every areal flood advisory 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.