Alert archive / Texas / Tornado Warnings in 2021

Tornado Warning 46, NWS Amarillo, TX

October 13, 20214 counties in Texas

NWS Amarillo, TX issued this tornado warning at Oct 13, 2021, 12:57 AM CDT for 4 counties in Texas. It was in force for 33 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, 12:57 AM CDT (05:57 UTC)
Expired: Oct 13, 2021, 1:30 AM CDT
In force: 33 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

Counties Collingsworth County, TX, Donley County, TX, Gray County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 125 km from the middle of the area, began a volume at 05:59 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
Oct 12, 11:05 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 6.0 hours before the alert went out and 124 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: 165 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 2910 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

044 
WFUS54 KAMA 130557
TORAMA
TXC087-129-179-483-130630-
/O.NEW.KAMA.TO.W.0046.211013T0557Z-211013T0630Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Amarillo TX
1257 AM CDT Wed Oct 13 2021

The National Weather Service in Amarillo has issued a

* Tornado Warning for...
  Southern Wheeler County in the Panhandle of Texas...
  Southeastern Gray County in the Panhandle of Texas...
  Northwestern Collingsworth County in the Panhandle of Texas...
  Northeastern Donley County in the Panhandle of Texas...

* Until 130 AM CDT.
    
* At 1257 AM CDT, a severe thunderstorm capable of producing a
  tornado was located 8 miles southeast of Mclean, or 13 miles west
  of Shamrock, moving northeast at 65 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...
  Shamrock, Mclean, Lela and Twitty. 

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 3507 10051 3523 10064 3555 10000 3524 10000
TIME...MOT...LOC 0557Z 239DEG 55KT 3516 10048 

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

$$

Rutt

3 follow-up statements

027 
WWUS54 KAMA 130608
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
108 AM CDT Wed Oct 13 2021

TXC087-129-179-130618-
/O.CAN.KAMA.TO.W.0046.000000T0000Z-211013T0630Z/
Gray TX-Collingsworth TX-Donley TX-
108 AM CDT Wed Oct 13 2021

...THE TORNADO WARNING FOR SOUTHEASTERN GRAY...NORTHWESTERN
COLLINGSWORTH AND NORTHEASTERN DONLEY COUNTIES IS CANCELLED...
    
The tornadic thunderstorm which prompted the warning has moved out 
of the warned area. Therefore, the warning has been cancelled.

A Tornado Watch remains in effect until 600 AM CDT for the Panhandle
of Texas.

LAT...LON 3518 10018 3518 10031 3532 10045 3555 10000
      3524 10000
TIME...MOT...LOC 0608Z 239DEG 55KT 3525 10030 

$$

TXC483-130630-
/O.CON.KAMA.TO.W.0046.000000T0000Z-211013T0630Z/
Wheeler TX-
108 AM CDT Wed Oct 13 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 AM CDT FOR SOUTHERN
WHEELER COUNTY...
    
At 108 AM CDT, a severe thunderstorm capable of producing a tornado
was located near Lela, or near Shamrock, moving northeast at 65 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...
Shamrock, Lela and Twitty. 

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 3518 10018 3518 10031 3532 10045 3555 10000
      3524 10000
TIME...MOT...LOC 0608Z 239DEG 55KT 3525 10030 

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

$$

Rutt

735 
WWUS54 KAMA 130621
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
121 AM CDT Wed Oct 13 2021

TXC483-130630-
/O.CON.KAMA.TO.W.0046.000000T0000Z-211013T0630Z/
Wheeler TX-
121 AM CDT Wed Oct 13 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 130 AM CDT FOR
SOUTHEASTERN WHEELER COUNTY...
    
At 121 AM CDT, a severe thunderstorm capable of producing a tornado
was located 8 miles east of Twitty, or 12 miles northeast of
Shamrock, moving northeast at 65 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.

This tornadic thunderstorm will remain over mainly rural areas of
southeastern Wheeler County.

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 3519 10016 3541 10028 3555 10000 3524 10000
TIME...MOT...LOC 0621Z 239DEG 55KT 3535 10009 

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

$$

Rutt

105 
WWUS54 KAMA 130628
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
128 AM CDT Wed Oct 13 2021

TXC483-130637-
/O.EXP.KAMA.TO.W.0046.000000T0000Z-211013T0630Z/
Wheeler TX-
128 AM CDT Wed Oct 13 2021

...THE TORNADO WARNING FOR SOUTHEASTERN WHEELER COUNTY WILL EXPIRE AT
130 AM CDT...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.  However
small hail and gusty winds are still possible with this thunderstorm.

A Tornado Watch remains in effect until 600 AM CDT for the Panhandle
of Texas.

Remember, a Severe Thunderstorm Warning still remains in effect for
eastern Wheeler County and southeast Hemphill County.

LAT...LON 3519 10016 3541 10028 3555 10000 3524 10000
TIME...MOT...LOC 0627Z 239DEG 55KT 3540 10000 

$$

Rutt

The office that day

Everything else NWS Amarillo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Oct 12, 7:06 PM CDT	Special Weather Statement	AMA	Dallam, Hartley, Sherman	24 min
Oct 12, 7:08 PM CDT	Special Weather Statement	AMA	Hartley	37 min
Oct 12, 7:19 PM CDT	Special Weather Statement	AMA	Deaf Smith, Oldham	41 min
Oct 12, 7:33 PM CDT	Special Weather Statement	AMA	Dallam	42 min
Oct 12, 8:52 PM CDT	Severe Thunderstorm Warning Considerable damage threat	AMA	Hansford	53 min
Oct 12, 9:34 PM CDT	Severe Thunderstorm Warning Considerable damage threat	AMA	Hansford, Ochiltree	56 min
Oct 12, 10:02 PM CDT	Special Weather Statement	AMA	Carson	28 min
Oct 12, 10:23 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hemphill, Hutchinson, Lipscomb, Ochiltree, Roberts	82 min
Oct 12, 10:30 PM CDT	Special Weather Statement	AMA	Carson, Hutchinson, Roberts	30 min
Oct 12, 10:52 PM CDT	Special Weather Statement	AMA	Carson	23 min
Oct 12, 11:00 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	60 min
Oct 12, 11:01 PM CDT	Special Weather Statement	AMA	Carson	29 min
Oct 12, 11:42 PM CDT	Special Weather Statement	AMA	Gray	33 min
Oct 12, 11:59 PM CDT	Severe Thunderstorm Warning Considerable damage threat	AMA	Hemphill, Lipscomb, Ochiltree, Roberts	61 min
Oct 13, 12:01 AM CDT	Severe Thunderstorm Warning	AMA	Gray, Hemphill, Roberts, Wheeler	59 min
Oct 13, 12:50 AM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Donley, Gray, Hemphill, Wheeler	55 min
Oct 13, 2:06 AM CDT	Special Weather Statement	AMA	Collingsworth	24 min

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.