Alert archive / Texas / Tornado Warnings in 2021

Tornado Warning 21, NWS Austin/San Antonio, TX

June 21, 2021Blanco County, Burnet County, Hays County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Jun 21, 2021, 10:51 PM CDT for Blanco County, Burnet County, Hays County, Texas. It was in force for 24 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, 2021, 10:51 PM CDT (03:51 UTC)
Expired: Jun 21, 2021, 11:15 PM CDT
In force: 24 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

Counties Blanco County, TX, Burnet County, TX, Hays County, TX

The radar

The Ft Hood radar (KGRK), 80 km from the middle of the area, began a volume at 03:52 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 00:00Z, 3.9 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 105 J/kg
Mixed-layer CIN: -401 J/kg
Mixed-layer LCL: 999 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 39 m²/s²
0-3 km storm-relative helicity: 159 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

081 
WFUS54 KEWX 220351
TOREWX
TXC031-053-209-220415-
/O.NEW.KEWX.TO.W.0021.210622T0351Z-210622T0415Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Austin/San Antonio TX
1051 PM CDT Mon Jun 21 2021

The National Weather Service in Austin San Antonio has issued a

* Tornado Warning for...
  Northwestern Hays County in south central Texas...
  Northeastern Blanco County in south central Texas...
  South central Burnet County in south central Texas...

* Until 1115 PM CDT.
    
* At 1051 PM CDT, a severe thunderstorm capable of producing a
  tornado was located over Spicewood, or 8 miles southeast of Marble
  Falls, moving south at 35 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...
  Pedernales Falls State Park, Spicewood, Cypress Mill and Smithwick.

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 3055 9810 3052 9810 3049 9812 3048 9811
      3044 9811 3036 9817 3032 9813 3025 9814
      3032 9836 3058 9823
TIME...MOT...LOC 0351Z 011DEG 32KT 3048 9818 

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

$$

YB

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 21, 9:12 PM CDT	Special Weather Statement	EWX	Val Verde	48 min
Jun 21, 9:25 PM CDT	Severe Thunderstorm Warning	EWX	Val Verde	65 min
Jun 21, 9:43 PM CDT	Special Weather Statement	EWX	Williamson	47 min
Jun 21, 10:25 PM CDT	Special Weather Statement	EWX	Burnet, Llano, Williamson	50 min
Jun 21, 10:35 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Burnet, Travis	55 min
Jun 21, 10:52 PM CDT	Areal Flood Advisory	EWX	Burnet, Williamson	3 hr
Jun 21, 11:08 PM CDT	Areal Flood Advisory	EWX	Val Verde	3 hr
Jun 21, 11:13 PM CDT	Severe Thunderstorm Warning	EWX	Blanco, Burnet, Gillespie, Hays, Llano	62 min
Jun 21, 11:31 PM CDT	Areal Flood Advisory	EWX	Burnet, Travis, Williamson	3 hr
Jun 21, 11:53 PM CDT	Special Weather Statement	EWX	Gillespie	52 min
Jun 22, 12:00 AM CDT	Areal Flood Advisory	EWX	Blanco, Burnet, Llano	3 hr
Jun 22, 12:09 AM CDT	Severe Thunderstorm Warning	EWX	Gillespie, Kendall, Kerr	39 min
Jun 22, 12:19 AM CDT	Special Weather Statement	EWX	Travis	41 min
Jun 22, 12:24 AM CDT	Special Weather Statement	EWX	Edwards	51 min
Jun 22, 12:30 AM CDT	Areal Flood Advisory	EWX	Williamson	3 hr
Jun 22, 12:47 AM CDT	Special Weather Statement	EWX	Bandera	43 min
Jun 22, 1:16 AM CDT	Special Weather Statement	EWX	Bandera, Medina, Real, Uvalde	44 min
Jun 22, 1:54 AM CDT	Special Weather Statement	EWX	Kinney	51 min
Jun 22, 2:08 AM CDT	Areal Flood Advisory	EWX	Edwards, Real	5 hr
Jun 22, 2:23 AM CDT	Special Weather Statement	EWX	Fayette	52 min
Jun 22, 2:52 AM CDT	Areal Flood Advisory	EWX	Edwards, Kinney, Uvalde, Val Verde	4 hr
Jun 22, 3:01 AM CDT	Special Weather Statement	EWX	Kinney	44 min
Jun 22, 3:13 AM CDT	Special Weather Statement	EWX	Fayette	47 min
Jun 22, 4:00 AM CDT	Special Weather Statement	EWX	Gonzales	45 min
Jun 22, 4:33 AM CDT	Special Weather Statement	EWX	DeWitt, Gonzales	42 min
Jun 22, 5:22 AM CDT	Areal Flood Advisory	EWX	Bexar	3 hr

Nearby

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