Alert archive / Texas / Tornado Warnings in 2021

Tornado Warning 10, NWS Amarillo, TX

March 13, 2021Armstrong County, Donley County, Texas

NWS Amarillo, TX issued this tornado warning at Mar 13, 2021, 5:14 PM CST for Armstrong County, Donley County, Texas. It was in force for 46 min. 3 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Mar 13, 2021, 5:14 PM CST (23:14 UTC)
Expired
Mar 13, 2021, 6:00 PM CST
In force
46 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon
Tornado
Radar indicated
Hail
1.75 in

Counties Armstrong County, TX, Donley County, TX

The radar

The Amarillo radar (KAMA), 69 km from the middle of the area, began a volume at 23:18 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.

What was reported inside it

TimeReportWhereRemark
Mar 13, 5:39 PM CSTTORNADO11 Wsw Clarendon, TXCONFIRMED TORNADO ON THE GROUND AT 539 PM CST. CURRENTLY ONGOING. NO OTHER INFORMATION AT THIS TIME.
Mar 13, 5:42 PM CSTTORNADO4 Sw Clarendon, TXCORRECTED FOR TIME ADJUSTED TO CDT. THE TORNADO BEGAN AT 5:42 PM CST. THIS TORNADO HAD A MAXIMUM PATH OF 1200 YARDS, A PATH LENGTH OF 13.2 MILES, AND WAS RATED EF2 WITH AN ESTIMATED PEAK WIND SPEED OF 120 MPH. THE TORNADO LIFTED AT 6:12 PM CST APPROXIMATELY 3
Mar 13, 5:51 PM CSTTORNADO1 W Clarendon, TXCORRECTED FOR TIME ADJUSTED TO CDT. THE TORNADO BEGAN AT 5:51 PM CST. THIS TORNADO HAD A MAXIMUM PATH WIDTH OF 40 YARDS, A PATH LENGTH OF 0.6 MILE, AND WAS RATED EF0 WITH AN ESTIMATED PEAK WIND SPEED OF 80 MPH. THE TORNADO LIFTED AT 5:52 PM CST APPROXIMATELY 1

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

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

IssuedProductOfficeLasted
Mar 13, 2:26 PM CSTTornado WatchSPC7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.2 hours before the alert went out and 69 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, Amarillo Airport, TX at 12:00Z on 2021-03-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 188 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, Amarillo Airport, TX at 12:00Z on 2021-03-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 162 square meters per square second.1939587897117Sfc1 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
188 J/kg
Mixed-layer CIN
-140 J/kg
Mixed-layer LCL
540 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
162 m²/s²
0-3 km storm-relative helicity
216 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.9

Open this sounding in Storm Lab

The text

As transmitted.

332 
WFUS54 KAMA 132314
TORAMA
TXC011-129-140000-
/O.NEW.KAMA.TO.W.0010.210313T2314Z-210314T0000Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Amarillo TX
514 PM CST Sat Mar 13 2021

The National Weather Service in Amarillo has issued a

* Tornado Warning for...
  Southeastern Armstrong County in the Panhandle of Texas...
  Southwestern Donley County in the Panhandle of Texas...

* Until 600 PM CST.
    
* At 513 PM CST, a severe thunderstorm capable of producing a tornado
  was located 17 miles west of Brice, or 20 miles north of Silverton,
  moving northeast at 30 mph.

  HAZARD...Tornado and golf ball 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 Armstrong and southwestern Donley Counties.

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3475 10130 3479 10135 3504 10107 3488 10080
      3475 10096
TIME...MOT...LOC 2313Z 228DEG 22KT 3475 10119 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Ferguson
1 follow-up statement
979 
WWUS54 KAMA 132339
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
539 PM CST Sat Mar 13 2021

TXC011-129-140000-
/O.CON.KAMA.TO.W.0010.000000T0000Z-210314T0000Z/
Armstrong TX-Donley TX-
539 PM CST Sat Mar 13 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 600 PM CST FOR
SOUTHEASTERN ARMSTRONG AND SOUTHWESTERN DONLEY COUNTIES...
    
At 538 PM CST, a severe thunderstorm capable of producing a tornado
was located 11 miles southwest of Clarendon, moving northeast at 25
mph.

HAZARD...Tornado and golf ball 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 Armstrong and southwestern Donley Counties.

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.

Heavy rainfall may hide this tornado. Do not wait to see or hear the
tornado. TAKE COVER NOW!

&&

LAT...LON 3475 10130 3479 10135 3504 10107 3488 10080
      3475 10096
TIME...MOT...LOC 2338Z 221DEG 23KT 3486 10107 

TORNADO...RADAR INDICATED
HAIL...1.75IN

$$

Ferguson

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 12, 6:11 PM CSTSevere Thunderstorm WarningAMADeaf Smith, Oldham36 min
Mar 12, 6:24 PM CSTSpecial Weather StatementAMADeaf Smith51 min
Mar 12, 7:02 PM CSTDense Fog AdvisoryAMACarson, Dallam, Gray, Hansford, Hartley, Hemphill and 9 more16 hr
Mar 12, 7:11 PM CSTSpecial Weather StatementAMAMoore34 min
Mar 12, 7:12 PM CSTSpecial Weather StatementAMAOldham48 min
Mar 12, 7:39 PM CSTSevere Thunderstorm WarningAMACarson, Hutchinson, Moore, Potter66 min
Mar 12, 7:57 PM CSTSpecial Weather StatementAMAOldham48 min
Mar 12, 7:58 PM CSTSpecial Weather StatementAMAPotter47 min
Mar 12, 8:20 PM CSTSevere Thunderstorm WarningAMACarson, Gray, Hutchinson, Roberts55 min
Mar 12, 8:39 PM CSTSpecial Weather StatementAMAPotter36 min
Mar 12, 9:11 PM CSTSevere Thunderstorm WarningAMACarson, Gray, Hutchinson, Potter, Roberts79 min
Mar 12, 9:14 PM CSTSevere Thunderstorm WarningAMAHemphill, Lipscomb, Roberts19 min
Mar 12, 10:09 PM CSTSevere Thunderstorm WarningAMAGray, Hemphill, Roberts, Wheeler29 min
Mar 13, 7:41 AM CSTSpecial Weather StatementAMAOldham34 min
Mar 13, 7:50 AM CSTSpecial Weather StatementAMAMoore25 min
Mar 13, 7:54 AM CSTSevere Thunderstorm WarningAMAHartley, Moore, Sherman31 min
Mar 13, 8:26 AM CSTSpecial Weather StatementAMASherman34 min
Mar 13, 8:31 AM CSTSevere Thunderstorm WarningAMAMoore33 min
Mar 13, 1:18 PM CSTSpecial Weather StatementAMAOldham27 min
Mar 13, 1:45 PM CSTSpecial Weather StatementAMAHartley30 min
Mar 13, 1:54 PM CSTSevere Thunderstorm WarningAMADeaf Smith, Hartley, Oldham51 min
Mar 13, 2:24 PM CSTSevere Thunderstorm WarningAMADeaf Smith, Oldham66 min
Mar 13, 2:42 PM CSTTornado WarningAMADallam, Hartley, Moore33 min
Mar 13, 3:12 PM CSTSevere Thunderstorm WarningAMAArmstrong, Randall63 min
Mar 13, 3:14 PM CSTSpecial Weather StatementAMASherman31 min
Mar 13, 3:21 PM CSTTornado WarningAMARandall39 min
Mar 13, 3:30 PM CSTSevere Thunderstorm WarningAMAHartley, Moore, Oldham, Potter60 min
Mar 13, 3:34 PM CSTTornado WarningAMASherman26 min
Mar 13, 3:34 PM CSTTornado WarningAMAMoore26 min
Mar 13, 3:50 PM CSTTornado Warning Tornado observedConsiderable damage threatAMAArmstrong, Randall40 min
Mar 13, 4:00 PM CSTTornado WarningAMAArmstrong, Randall45 min
Mar 13, 4:21 PM CSTTornado Warning Tornado observedConsiderable damage threatAMAArmstrong, Carson39 min
Mar 13, 4:30 PM CSTSevere Thunderstorm WarningAMAHansford, Hutchinson, Moore, Sherman60 min
Mar 13, 4:42 PM CSTTornado Warning Tornado observedAMAArmstrong, Carson, Donley, Gray48 min
Mar 13, 4:52 PM CSTTornado WarningAMACarson, Gray38 min
Mar 13, 5:29 PM CSTSpecial Weather StatementAMAGray31 min
Mar 13, 5:30 PM CSTSpecial Weather StatementAMACarson30 min
Mar 13, 5:43 PM CSTTornado Warning Tornado observedAMADonley47 min

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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.