Alert archive / Texas / Special Weather Statements in 2021

Special Weather Statement, NWS Austin/San Antonio, TX

October 27, 2021Bastrop County, Caldwell County, Texas

NWS Austin/San Antonio, TX issued this special weather statement at Oct 27, 2021, 6:02 AM CDT for Bastrop County, Caldwell County, Texas. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Oct 27, 2021, 6:02 AM CDT (11:02 UTC)
Expired
Oct 27, 2021, 7:00 AM CDT
In force
58 min
Issued by
NWS Austin/San Antonio, TX
Hail
0.50 in
Wind
50

Counties Bastrop County, TX, Caldwell County, TX

The radar

The Austin/San Antonio radar (KEWX), 77 km from the middle of the area, began a volume at 11:02 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, 11.0 hours before the alert went out and 239 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 2021-10-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1406 joules per kilogram.LCLLFCEL10008507005003002001001 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, Corpus Christi, TX at 00:00Z on 2021-10-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 61 square meters per square second.19395878Sfc1 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
1406 J/kg
Mixed-layer CIN
-50 J/kg
Mixed-layer LCL
845 m above ground
0-6 km bulk shear
38 kt
0-1 km storm-relative helicity
61 m²/s²
0-3 km storm-relative helicity
68 m²/s²
Significant tornado parameter
0.5
Supercell composite
7.2

Open this sounding in Storm Lab

The text

As transmitted.

289 
WWUS84 KEWX 271102
SPSEWX

Special Weather Statement
National Weather Service Austin/San Antonio TX
602 AM CDT Wed Oct 27 2021
 
TXZ193-207>209-223-271200-
Guadalupe TX-Caldwell TX-Bastrop TX-Fayette TX-Gonzales TX-
602 AM CDT Wed Oct 27 2021

...Strong thunderstorms will impact portions of Caldwell,
northeastern Guadalupe, southern Bastrop, northeastern Gonzales and
northwestern Fayette Counties through 700 AM CDT...

At 602 AM CDT, Doppler radar was tracking strong thunderstorms along
a line extending from near Smithville to near Kingsbury. Movement was
east at 35 mph.

HAZARD...Wind gusts up to 50 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
Seguin, Lockhart, Bastrop, Gonzales, Luling, La Grange, Smithville,
Martindale, Waelder, Kingsbury, Staples, Fentress, Cedar Creek,
Palmeto State Park, Rosanky, Muldoon, Cistern, Geronimo, Wyldwood and
Upton.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

A Severe Thunderstorm Watch remains in effect until 800 AM CDT for
south central Texas.

&&

LAT...LON 2950 9743 2965 9802 3015 9748 3009 9704
      3003 9702 3008 9692 3005 9672
TIME...MOT...LOC 1102Z 276DEG 32KT 3007 9721 2965 9776 

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...50 MPH

$$

MO

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 27, 3:41 AM CDTSpecial Weather StatementEWXBandera64 min
Oct 27, 4:03 AM CDTSpecial Weather StatementEWXBurnet57 min
Oct 27, 4:05 AM CDTSevere Thunderstorm WarningEWXBandera, Kendall, Kerr, Medina, Uvalde40 min
Oct 27, 4:08 AM CDTSevere Thunderstorm WarningEWXBandera, Kendall, Kerr, Medina, Real, Uvalde52 min
Oct 27, 4:22 AM CDTSpecial Weather StatementEWXBlanco, Comal, Hays, Travis53 min
Oct 27, 4:41 AM CDTSpecial Weather StatementEWXWilliamson49 min
Oct 27, 4:50 AM CDTSevere Thunderstorm WarningEWXBexar, Blanco, Comal, Hays, Kendall55 min
Oct 27, 5:00 AM CDTSpecial Weather StatementEWXBexar45 min
Oct 27, 5:08 AM CDTSpecial Weather StatementEWXBastrop, Caldwell, Guadalupe, Travis52 min
Oct 27, 5:31 AM CDTSpecial Weather StatementEWXBastrop, Lee59 min
Oct 27, 5:49 AM CDTSpecial Weather StatementEWXBexar, Guadalupe41 min
Oct 27, 6:18 AM CDTSpecial Weather StatementEWXGonzales, Guadalupe, Wilson57 min
Oct 27, 6:43 AM CDTSpecial Weather StatementEWXFayette, Gonzales, Lavaca62 min
Oct 27, 7:45 AM CDTSpecial Weather StatementEWXDeWitt, Karnes, Lavaca30 min

Nearby

Special Weather Statements in Texas, 2021Every special weather statement 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.