Alert archive / Texas / Tornado Warnings in 2023

Tornado Warning 13, NWS Austin/San Antonio, TX

June 21, 2023Llano County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Jun 21, 2023, 6:19 PM CDT for Llano County, Texas. It was in force for 26 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
Jun 21, 2023, 6:19 PM CDT (23:19 UTC)
Expired
Jun 21, 2023, 6:45 PM CDT
In force
26 min
Issued by
NWS Austin/San Antonio, TX
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.25 in

County Llano County, TX

The radar

The Ft Hood radar (KGRK), 107 km from the middle of the area, began a volume at 23:22 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

Fort Worth, TX (KFWD), launched 12:00Z, 11.3 hours before the alert went out and 266 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, Fort Worth, TX at 12:00Z on 2023-06-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4458 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, Fort Worth, TX at 12:00Z on 2023-06-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -16 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
4458 J/kg
Mixed-layer CIN
-165 J/kg
Mixed-layer LCL
648 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
-16 m²/s²
0-3 km storm-relative helicity
117 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

Open this sounding in Storm Lab

The text

As transmitted.

125 
WFUS54 KEWX 212319
TOREWX
TXC299-212345-
/O.NEW.KEWX.TO.W.0013.230621T2319Z-230621T2345Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Austin/San Antonio TX
619 PM CDT Wed Jun 21 2023

The National Weather Service in Austin San Antonio has issued a

* Tornado Warning for...
  Central Llano County in south central Texas...

* Until 645 PM CDT.
    
* At 619 PM CDT, a severe thunderstorm capable of producing a tornado
  was located near Llano, moving east at 35 mph.

  HAZARD...Tornado and half dollar size hail.

  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...
  Kingsland, Llano, Buchanan Dam, Gainesville and Oxford. 

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.

&&

LAT...LON 3075 9840 3067 9842 3067 9844 3066 9844
      3066 9843 3065 9842 3050 9846 3061 9881
      3078 9877
TIME...MOT...LOC 2319Z 282DEG 29KT 3068 9871 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.25 IN

$$

QUIGLEY
2 follow-up statements
988 
WWUS54 KEWX 212327
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
627 PM CDT Wed Jun 21 2023

TXC299-212345-
/O.CON.KEWX.TO.W.0013.000000T0000Z-230621T2345Z/
Llano TX-
627 PM CDT Wed Jun 21 2023

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 645 PM CDT FOR
SOUTHEASTERN LLANO COUNTY...
    
At 626 PM CDT, a severe thunderstorm capable of producing a tornado
was located near Oxford, or near Llano, moving east at 35 mph.

HAZARD...Tornado and quarter size hail.

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...
Kingsland, Llano, Buchanan Dam, Gainesville and Oxford. 

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.

&&

LAT...LON 3075 9840 3067 9842 3067 9844 3066 9844
      3066 9843 3065 9842 3050 9846 3060 9875
      3077 9870
TIME...MOT...LOC 2326Z 282DEG 29KT 3067 9864 

TORNADO...RADAR INDICATED
MAX HAIL SIZE...1.00 IN

$$

QUIGLEY
575 
WWUS54 KEWX 212337
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
637 PM CDT Wed Jun 21 2023

TXC299-212346-
/O.EXP.KEWX.TO.W.0013.000000T0000Z-230621T2345Z/
Llano TX-
637 PM CDT Wed Jun 21 2023

...THE TORNADO WARNING FOR SOUTHEASTERN LLANO COUNTY WILL EXPIRE AT
645 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning will be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
south central Texas.

Remember, a Severe Thunderstorm Warning still remains in effect for
eastern Llano County until 730 PM CDT

LAT...LON 3075 9840 3067 9842 3067 9844 3066 9844
      3066 9843 3065 9842 3050 9846 3060 9875
      3077 9870
TIME...MOT...LOC 2336Z 282DEG 29KT 3065 9855 

$$

QUIGLEY

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 20, 7:43 PM CDTSevere Thunderstorm WarningEWXEdwards19 min
Jun 21, 12:56 PM CDTExcessive Heat WarningEWXAtascosa, Dimmit, Frio, Maverick, Zavala4 days
Jun 21, 12:56 PM CDTHeat AdvisoryEWXAtascosa, Bandera, Bastrop, Bexar, Blanco, Burnet and 27 more6 days
Jun 21, 3:20 PM CDTSpecial Weather StatementEWXReal40 min
Jun 21, 3:55 PM CDTSpecial Weather StatementEWXKimble50 min
Jun 21, 4:38 PM CDTSpecial Weather StatementEWXKerr52 min
Jun 21, 4:42 PM CDTSpecial Weather StatementEWXBandera48 min
Jun 21, 4:46 PM CDTSevere Thunderstorm WarningEWXGillespie, Kerr59 min
Jun 21, 4:48 PM CDTSevere Thunderstorm WarningEWXBandera, Kerr, Real57 min
Jun 21, 5:15 PM CDTSevere Thunderstorm WarningEWXGillespie45 min
Jun 21, 5:29 PM CDTSevere Thunderstorm WarningEWXKerr46 min
Jun 21, 5:36 PM CDTSpecial Weather StatementEWXReal39 min
Jun 21, 5:45 PM CDTSevere Thunderstorm WarningEWXBlanco, Burnet, Gillespie, Kendall, Kerr, Llano60 min
Jun 21, 5:53 PM CDTAreal Flood AdvisoryEWXBandera, Edwards, Kerr, Real, Uvalde3 hr
Jun 21, 5:55 PM CDTSevere Thunderstorm WarningEWXEdwards, Kinney, Real, Uvalde50 min
Jun 21, 6:30 PM CDTSevere Thunderstorm WarningEWXBlanco, Burnet, Comal, Gillespie, Hays, Kendall and 3 more42 min
Jun 21, 6:35 PM CDTAreal Flood AdvisoryEWXBlanco, Burnet, Gillespie, Llano3 hr
Jun 21, 6:43 PM CDTSevere Thunderstorm WarningEWXBlanco, Gillespie, Llano16 min
Jun 21, 6:47 PM CDTSpecial Weather StatementEWXUvalde43 min

Nearby

Tornado Warnings in Texas, 2023Every tornado warning in 2023Tornadoes in 2023

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.