Alert archive / Texas / Tornado Warnings in 2021

Tornado Warning 22, NWS Austin/San Antonio, TX

October 13, 2021Blanco County, Comal County, Kendall County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Oct 13, 2021, 8:05 PM CDT for Blanco County, Comal County, Kendall County, Texas. It was in force for 25 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 13, 2021, 8:05 PM CDT (01:05 UTC)
Expired
Oct 13, 2021, 8:30 PM CDT
In force
25 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Tornado
Radar indicated
Hail
0.75 in

Counties Blanco County, TX, Comal County, TX, Kendall County, TX

The radar

The Austin/San Antonio radar (KEWX), 56 km from the middle of the area, began a volume at 01:08 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

Del Rio, TX (KDRT), launched 00:00Z, 1.1 hours before the alert went out and 241 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, Del Rio, TX at 00:00Z on 2021-10-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 20 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, Del Rio, TX at 00:00Z on 2021-10-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -100 square meters per square second.193958Sfc1 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
20 J/kg
Mixed-layer CIN
-119 J/kg
Mixed-layer LCL
1371 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-100 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.1

Open this sounding in Storm Lab

The text

As transmitted.

276 
WFUS54 KEWX 140105
TOREWX
TXC031-091-259-140130-
/O.NEW.KEWX.TO.W.0022.211014T0105Z-211014T0130Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Austin/San Antonio TX
805 PM CDT Wed Oct 13 2021

The National Weather Service in Austin San Antonio has issued a

* Tornado Warning for...
  Southwestern Blanco County in south central Texas...
  Northeastern Kendall County in south central Texas...
  North central Comal County in south central Texas...

* Until 830 PM CDT.
    
* At 805 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Flugrath, or near Blanco, moving northeast at 15
  mph.

  HAZARD...Tornado.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* Locations impacted include...
  Blanco, Canyon Lake, Flugrath, Kendalia, Twin Sisters and Spring
  Branch.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

Tornadoes are extremely difficult to see and confirm at night. Do not
wait to see or hear the tornado. TAKE COVER NOW!

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 2994 9857 3012 9858 3028 9834 2992 9828
TIME...MOT...LOC 0105Z 245DEG 12KT 3004 9850 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...<.75 IN

$$

CP
1 follow-up statement
022 
WWUS54 KEWX 140130
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
830 PM CDT Wed Oct 13 2021

TXC031-091-259-140140-
/O.EXP.KEWX.TO.W.0022.000000T0000Z-211014T0130Z/
Blanco TX-Kendall TX-Comal TX-
830 PM CDT Wed Oct 13 2021

...THE TORNADO WARNING FOR SOUTHWESTERN BLANCO...NORTHEASTERN KENDALL
AND NORTH CENTRAL COMAL COUNTIES HAS EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning has been allowed to expire.  However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.

LAT...LON 2994 9857 3012 9858 3028 9834 2992 9828
TIME...MOT...LOC 0130Z 245DEG 12KT 3007 9842 

$$

CP

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 13, 7:44 PM CDTSpecial Weather StatementEWXKendall46 min
Oct 13, 7:53 PM CDTAreal Flood AdvisoryEWXBandera, Kendall, Kerr3 hr
Oct 13, 8:21 PM CDTSpecial Weather StatementEWXWilliamson39 min
Oct 13, 8:28 PM CDTSpecial Weather StatementEWXComal, Hays47 min
Oct 13, 8:35 PM CDTAreal Flood AdvisoryEWXBlanco3 hr
Oct 13, 8:55 PM CDTFlash Flood Warning Considerable damage threatEWXBlanco, Kendall6 hr
Oct 13, 9:25 PM CDTAreal Flood AdvisoryEWXBexar, Comal, Hays3 hr
Oct 13, 9:49 PM CDTFlash Flood Warning Considerable damage threatEWXBexar, Comal3 hr
Oct 13, 9:55 PM CDTAreal Flood AdvisoryEWXTravis3 hr
Oct 13, 10:24 PM CDTAreal Flood AdvisoryEWXWilliamson3 hr
Oct 13, 10:38 PM CDTAreal Flood AdvisoryEWXHays, Travis3 hr
Oct 13, 10:52 PM CDTRiver Flood WarningEWXBlanco, Hays3 hr
Oct 13, 11:00 PM CDTFlash Flood Warning Considerable damage threatEWXHays6 hr
Oct 13, 11:49 PM CDTAreal Flood AdvisoryEWXBastrop, Travis, Williamson4 hr
Oct 13, 11:59 PM CDTAreal Flood AdvisoryEWXBexar, Caldwell, Comal, Guadalupe4 hr
Oct 14, 12:46 AM CDTFlash Flood Warning Considerable damage threatEWXCaldwell, Comal, Guadalupe, Hays10 hr
Oct 14, 12:57 AM CDTRiver Flood WarningEWXHays4 hr
Oct 14, 1:04 AM CDTFlash Flood WarningEWXBexar, Comal4 hr
Oct 14, 1:11 AM CDTAreal Flood AdvisoryEWXCaldwell, Gonzales, Guadalupe, Wilson3 hr
Oct 14, 1:50 AM CDTRiver Flood WarningEWXComal, Guadalupe7 hr
Oct 14, 2:04 AM CDTSpecial Weather StatementEWXGonzales41 min
Oct 14, 2:39 AM CDTSpecial Weather StatementEWXGonzales51 min
Oct 14, 2:48 AM CDTTornado WarningEWXGonzales, Lavaca27 min
Oct 14, 3:11 AM CDTRiver Flood WarningEWXComal, Guadalupe4 hr
Oct 14, 3:17 AM CDTAreal Flood AdvisoryEWXBastrop, Fayette, Lee3 hr
Oct 14, 3:19 AM CDTTornado WarningEWXGonzales, Lavaca26 min
Oct 14, 3:39 AM CDTTornado WarningEWXFayette, Gonzales, Lavaca36 min
Oct 14, 3:42 AM CDTFlash Flood Warning Considerable damage threatEWXCaldwell, Gonzales, Guadalupe, Karnes, Lavaca, Wilson7 hr
Oct 14, 4:13 AM CDTRiver Flood WarningEWXComal, Gonzales, Guadalupe3 hr
Oct 14, 4:24 AM CDTSevere Thunderstorm WarningEWXFayette, Gonzales, Lavaca66 min
Oct 14, 5:07 AM CDTFlash Flood Warning Considerable damage threatEWXFayette5 hr
Oct 14, 5:10 AM CDTSevere Thunderstorm WarningEWXLavaca21 min
Oct 14, 5:36 AM CDTRiver Flood WarningEWXCaldwell, Hays8 hr
Oct 14, 5:36 AM CDTRiver Flood WarningEWXCaldwell, Gonzales38 hr
Oct 14, 6:27 AM CDTFlash Flood Warning Considerable damage threatEWXDeWitt, Karnes, Lavaca6 hr
Oct 14, 7:15 AM CDTRiver Flood WarningEWXTravis6 hr
Oct 14, 7:19 AM CDTRiver Flood WarningEWXGonzales3 days
Oct 14, 7:52 AM CDTRiver Flood WarningEWXGuadalupe3 hr
Oct 14, 8:23 AM CDTRiver Flood WarningEWXBexar7 hr
Oct 14, 8:28 AM CDTRiver Flood WarningEWXBexar21 hr
Oct 14, 8:28 AM CDTRiver Flood WarningEWXBexar, Wilson29 hr
Oct 14, 8:29 AM CDTRiver Flood WarningEWXBexar12 hr
Oct 14, 9:10 AM CDTRiver Flood WarningEWXDeWitt3 days
Oct 14, 9:11 AM CDTRiver Flood WarningEWXDeWitt5 days
Oct 14, 10:54 AM CDTRiver Flood WarningEWXKarnes, Wilson33 hr
Oct 14, 10:55 AM CDTRiver Flood WarningEWXKarnes45 hr

Nearby

Tornado Warnings in Texas, 2021Every tornado warning in 2021Tornadoes 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.