Alert archive / Texas / Areal Flood Advisories in 2021

Areal Flood Advisory 111, NWS Austin/San Antonio, TX

June 3, 2021Bastrop County, Lee County, Travis County, Texas

NWS Austin/San Antonio, TX issued this areal flood advisory at Jun 3, 2021, 1:45 PM CDT for Bastrop County, Lee County, Travis County, Texas. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jun 3, 2021, 1:45 PM CDT (18:45 UTC)
Expired
Jun 3, 2021, 3:45 PM CDT
In force
2 hr
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon

Counties Bastrop County, TX, Lee County, TX, Travis County, TX

The radar

The Ft Hood radar (KGRK), 53 km from the middle of the area, began a volume at 18:45 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 12:00Z, 6.8 hours before the alert went out and 280 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 12:00Z on 2021-06-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2599 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 12:00Z on 2021-06-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
2599 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
672 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Austin/San Antonio, TX wrote its last area forecast discussion before this areal flood advisory went out at Jun 3, 12:46 PM CDT, 59 minutes earlier.

Area forecast discussion, Jun 3, 12:46 PM CDT, 59 minutes before
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Hazardous weather outlook, Jun 3, 3:50 AM CDT, 9 hours 55 minutes before
Hazardous Weather Outlook
National Weather Service Austin/San Antonio TX
350 AM CDT Thu Jun 3 2021

TXZ171>173-183>194-202>209-217>225-228-040900-
Llano-Burnet-Williamson-Val Verde-Edwards-Real-Kerr-Bandera-
Gillespie-Kendall-Blanco-Hays-Travis-Bastrop-Lee-Kinney-Uvalde-
Medina-Bexar-Comal-Guadalupe-Caldwell-Fayette-Maverick-Zavala-
Frio-Atascosa-Wilson-Karnes-Gonzales-De Witt-Lavaca-Dimmit-
350 AM CDT Thu Jun 3 2021

This Hazardous Weather Outlook is for South-Central Texas..

.DAY ONE...Today And Tonight.

Scattered showers and storms are forecast today and tonight. A
few storms could become strong, producing gusty winds up to 50 mph
and small hail. In additional, pockets of heavy rainfall are
possible, which could produce localized flash flooding.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Several more opportunities for showers and thunderstorms are
expected Friday through the weekend, primarily favoring the
afternoon and into the evening/nighttime hours. Some of these
storms may be strong and also produce heavy rainfall. Localized
flash flooding is also a concern due to previous rain events over
the past two weeks or so.

.SPOTTER INFORMATION STATEMENT...

Spotters are encouraged to report any severe weather or flooding to
the National Weather Service.

In the hours before

Local storm report, Jun 3, 10:43 AM CDT, 3 hours 2 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1043 AM CDT THU JUN 3 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1015 AM     HAIL             BERGSTROM INTERNATIONAL 30.19N 97.67W
06/03/2021  E0.25 INCH       TRAVIS             TX   PUBLIC

            PUBLIC REPORT VIA TWITTER OF HAIL SMALLER
            THAN PEA SIZED AT THE AUSTIN AIRPORT.

&&

AAT

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 2, 7:37 PM CDTSevere Thunderstorm WarningEWXBurnet, Llano53 min
Jun 2, 7:59 PM CDTAreal Flood AdvisoryEWXBurnet, Llano3 hr
Jun 2, 8:23 PM CDTAreal Flood AdvisoryEWXWilliamson3 hr
Jun 2, 8:29 PM CDTSevere Thunderstorm WarningEWXBurnet, Llano61 min
Jun 2, 8:41 PM CDTSpecial Weather StatementEWXTravis49 min
Jun 2, 8:50 PM CDTFlash Flood Warning Considerable damage threatEWXBurnet, Williamson3 hr
Jun 2, 9:17 PM CDTSevere Thunderstorm WarningEWXBurnet, Travis, Williamson58 min
Jun 2, 9:50 PM CDTSpecial Weather StatementEWXLee40 min
Jun 2, 9:52 PM CDTSpecial Weather StatementEWXWilliamson38 min
Jun 2, 10:14 PM CDTSpecial Weather StatementEWXBastrop, Travis46 min
Jun 3, 8:21 AM CDTAreal Flood AdvisoryEWXLlano3 hr
Jun 3, 9:42 AM CDTAreal Flood AdvisoryEWXBlanco, Gillespie, Hays, Kendall3 hr
Jun 3, 12:34 PM CDTAreal Flood AdvisoryEWXAtascosa, Bexar, Wilson3 hr
Jun 3, 1:51 PM CDTAreal Flood AdvisoryEWXBexar, DeWitt, Gonzales, Guadalupe, Karnes, Wilson3 hr
Jun 3, 2:42 PM CDTAreal Flood AdvisoryEWXAtascosa, Karnes, Wilson4 hr
Jun 3, 2:49 PM CDTRiver Flood WarningEWXBlanco6 hr
Jun 3, 3:44 PM CDTAreal Flood AdvisoryEWXDeWitt, Lavaca5 hr
Jun 3, 5:03 PM CDTAreal Flood AdvisoryEWXDeWitt, Gonzales, Guadalupe, Karnes, Wilson3 hr
Jun 3, 5:22 PM CDTAreal Flood AdvisoryEWXBastrop, Caldwell, Fayette, Gonzales, Guadalupe, Lavaca3 hr
Jun 3, 6:05 PM CDTRiver Flood WarningEWXDeWitt3 days
Jun 3, 6:45 PM CDTAreal Flood AdvisoryEWXKarnes, Wilson2 hr

Nearby

Areal Flood Advisories in Texas, 2021Every areal flood advisory in 2021

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.