Alert archive / Texas / Tornado Warnings in 2020

Tornado Warning 2, NWS Austin/San Antonio, TX

January 10, 2020Kendall County, Texas

NWS Austin/San Antonio, TX issued this tornado warning at Jan 10, 2020, 6:52 PM CST for Kendall County, Texas. It was in force for 23 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: Jan 10, 2020, 6:52 PM CST (00:52 UTC)
Expired: Jan 10, 2020, 7:15 PM CST
In force: 23 min
Issued by: NWS Austin/San Antonio, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 0.75 in

County Kendall County, TX

The radar

The Austin/San Antonio radar (KEWX), 56 km from the middle of the area, began a volume at 00:53 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jan 10, 3:30 PM CST	Severe Thunderstorm Watch	SPC	68 days

The nearest sounding before it

Del Rio, TX (KDRT), launched 00:00Z, 0.9 hours before the alert went out and 232 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 3398 m above ground
0-6 km bulk shear: 87 kt
0-1 km storm-relative helicity: -218 m²/s²
0-3 km storm-relative helicity: -63 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

982 
WFUS54 KEWX 110052
TOREWX
TXC259-110115-
/O.NEW.KEWX.TO.W.0002.200111T0052Z-200111T0115Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Austin/San Antonio TX
652 PM CST Fri Jan 10 2020

The National Weather Service in Austin San Antonio has issued a

* Tornado Warning for...
  Northeastern Kendall County in south central Texas...

* Until 715 PM CST.
    
* At 651 PM CST, a severe thunderstorm capable of producing a tornado
  was located near Kendalia, or 13 miles northeast of Boerne, moving
  northeast 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...
  Kendalia.

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 2994 9842 2990 9846 2990 9860 2995 9865
      3001 9863 3008 9854
TIME...MOT...LOC 0051Z 236DEG 31KT 2995 9860 

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

$$

HAMPSHIRE

2 follow-up statements

734 
WWUS54 KEWX 110104
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
704 PM CST Fri Jan 10 2020

TXC259-110115-
/O.CON.KEWX.TO.W.0002.000000T0000Z-200111T0115Z/
Kendall TX-
704 PM CST Fri Jan 10 2020

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 715 PM CST FOR EAST
CENTRAL KENDALL COUNTY...
    
At 704 PM CST, a severe thunderstorm capable of producing a tornado
was located over Kendalia, or 9 miles southwest of Blanco, moving
northeast at 30 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...
Kendalia.

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 2994 9842 2991 9847 2995 9855 2998 9855
      3004 9851
TIME...MOT...LOC 0104Z 245DEG 27KT 2998 9850 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

HAMPSHIRE

856 
WWUS54 KEWX 110110
SVSEWX

Severe Weather Statement
National Weather Service Austin/San Antonio TX
710 PM CST Fri Jan 10 2020

TXC259-110120-
/O.EXP.KEWX.TO.W.0002.000000T0000Z-200111T0115Z/
Kendall TX-
710 PM CST Fri Jan 10 2020

...THE TORNADO WARNING FOR EAST CENTRAL KENDALL COUNTY WILL EXPIRE AT
715 PM CST...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire.

A Severe Thunderstorm Watch remains in effect until 1000 PM CST for
south central Texas.

LAT...LON 2994 9842 2991 9847 2995 9855 2998 9855
      3004 9851
TIME...MOT...LOC 0110Z 236DEG 31KT 3001 9845 

$$

HAMPSHIRE

The office that day

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

Issued	Product	Office	Counties	Lasted
Jan 10, 6:07 PM CST	Special Weather Statement	EWX	Zavala	38 min
Jan 10, 6:13 PM CST	Special Weather Statement	EWX	Blanco	62 min
Jan 10, 6:23 PM CST	Special Weather Statement	EWX	Uvalde	37 min
Jan 10, 6:45 PM CST	Special Weather Statement	EWX	Kendall, Medina	60 min
Jan 10, 6:46 PM CST	Severe Thunderstorm Warning	EWX	Blanco, Comal, Hays, Kendall	38 min
Jan 10, 6:52 PM CST	Severe Thunderstorm Warning	EWX	Frio, Medina	38 min
Jan 10, 7:03 PM CST	Severe Thunderstorm Warning	EWX	Blanco, Kendall	42 min
Jan 10, 7:19 PM CST	Severe Thunderstorm Warning	EWX	Atascosa, Bexar, Medina	56 min
Jan 10, 7:34 PM CST	Special Weather Statement	EWX	Comal	26 min
Jan 10, 7:49 PM CST	Severe Thunderstorm Warning	EWX	Caldwell, Hays	41 min
Jan 10, 7:53 PM CST	Severe Thunderstorm Warning	EWX	Bexar, Comal, Gonzales, Guadalupe, Hays, Wilson	37 min
Jan 10, 8:03 PM CST	Tornado Warning	EWX	Guadalupe	27 min
Jan 10, 8:08 PM CST	Special Weather Statement	EWX	Travis, Williamson	52 min
Jan 10, 8:13 PM CST	Areal Flood Advisory	EWX	Travis, Williamson	4 hr
Jan 10, 8:26 PM CST	Severe Thunderstorm Warning	EWX	Bastrop, Caldwell, Gonzales, Guadalupe, Hays, Travis and 1 more	49 min
Jan 10, 8:32 PM CST	Tornado Warning	EWX	Caldwell, Gonzales, Guadalupe	28 min
Jan 10, 9:01 PM CST	Severe Thunderstorm Warning	EWX	Bastrop, DeWitt, Fayette, Gonzales, Lavaca, Lee	74 min

Nearby

Tornado Warnings in Texas, 2020 Every tornado warning in 2020 Tornadoes in 2020

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.