Alert archive / Texas / Tornado Warnings in 2021

Tornado Warning 8, NWS Amarillo, TX

March 13, 20214 counties in Texas

NWS Amarillo, TX issued this tornado warning at Mar 13, 2021, 4:42 PM CST for 4 counties in Texas. It was in force for 48 min. 4 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, 4:42 PM CST (22:42 UTC)
Expired
Mar 13, 2021, 5:30 PM CST
In force
48 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon
Tornado
Observed
Hail
2.75 in

Counties Armstrong County, TX, Carson County, TX, Donley County, TX, Gray County, TX

The radar

The Amarillo radar (KAMA), 45 km from the middle of the area, began a volume at 22:45 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, 4:47 PM CSTHAIL 13 Ese Claude, TXREPORT FROM MPING: QUARTER (1.00 IN.).
Mar 13, 5:00 PM CSTHAIL 1.252 E Claude, TXDELAYED REPORT OF HALF DOLLAR HAIL FROM TWITTER. ACTUAL TIME OF REPORT IS 5 PM CST ON MARCH 13TH.
Mar 13, 5:02 PM CSTTORNADO6 Nnw Goodnight, TXCORRECTED FOR TIME ADJUSTED TO CDT. THE TORNADO BEGAN AT 5:02 PM CST. THIS TORNADO HAD A MAXIMUM PATH WIDTH OF 800 YARDS, A PATH LENGTH OF 3.1 MILES, AND WAS RATED EF-UNKNOWN WITH AN UNKNOWN ESTIMATED PEAK WIND SPEED. THE TORNADO LIFTED AT 5:11 PM CST APPROXIM
Mar 13, 5:05 PM CSTTORNADO8 Ene Claude, TXBRIEF TORNADO TOUCHED DOWN AROUND 505 PM AND LIFTED AROUND BEFORE 510 PM CST. RECEIVED VIDEO VIA SOCIAL MEDIA.

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, 10.7 hours before the alert went out and 44 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.

690 
WFUS54 KAMA 132242
TORAMA
TXC011-065-129-179-132330-
/O.NEW.KAMA.TO.W.0008.210313T2242Z-210313T2330Z/

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

The National Weather Service in Amarillo has issued a

* Tornado Warning for...
  Northern Armstrong County in the Panhandle of Texas...
  Southeastern Carson County in the Panhandle of Texas...
  Southwestern Gray County in the Panhandle of Texas...
  Northwestern Donley County in the Panhandle of Texas...

* Until 530 PM CST.

* At 442 PM CST, a confirmed tornado was located 5 miles southwest of
  Claude, moving northeast at 50 mph.

  HAZARD...Damaging tornado and baseball size hail.

  SOURCE...Weather spotters confirmed tornado.

  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...
  Claude, Groom and Goodnight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

To repeat, a tornado is on the ground. 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 3487 10137 3503 10159 3550 10110 3531 10075
TIME...MOT...LOC 2242Z 224DEG 42KT 3504 10141 

TORNADO...OBSERVED
HAIL...2.75IN

$$

Ferguson
2 follow-up statements
347 
WWUS54 KAMA 132304
SVSAMA

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

TXC011-065-129-179-132330-
/O.CON.KAMA.TO.W.0008.000000T0000Z-210313T2330Z/
Armstrong TX-Carson TX-Gray TX-Donley TX-
504 PM CST Sat Mar 13 2021

...A TORNADO WARNING REMAINS IN EFFECT UNTIL 530 PM CST FOR NORTHERN
ARMSTRONG...SOUTHEASTERN CARSON...SOUTHWESTERN GRAY AND NORTHWESTERN
DONLEY COUNTIES...
    
At 504 PM CST, a severe thunderstorm capable of producing a tornado
was located 7 miles southwest of Groom, or 8 miles east of Claude,
moving northeast at 40 mph.

HAZARD...Tornado and baseball 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...
Claude, Groom and Goodnight. 

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 3487 10137 3503 10159 3550 10110 3531 10075
TIME...MOT...LOC 2304Z 224DEG 29KT 3515 10122 

TORNADO...RADAR INDICATED
HAIL...2.75IN

$$

Ferguson
701 
WWUS54 KAMA 132334
SVSAMA

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

TXC011-065-129-179-132341-
/O.EXP.KAMA.TO.W.0008.000000T0000Z-210313T2330Z/
Armstrong TX-Carson TX-Gray TX-Donley TX-
534 PM CST Sat Mar 13 2021

...THE TORNADO WARNING FOR NORTHERN ARMSTRONG...SOUTHEASTERN
CARSON...SOUTHWESTERN GRAY AND NORTHWESTERN DONLEY COUNTIES HAS
EXPIRED...
                
The storm which prompted the warning has weakened below severe
limits, and no longer appears capable of producing a tornado.
Therefore, the warning for northern Armstrong, southeastern Carson, 
southwestern Gray, and northwestern Donley Counties has been allowed 
to expire. However small hail up to nickel size and gusty winds up 
to 55 mph are still possible with this thunderstorm. Therefore, a 
Significant Weather Advisory is in effect for eastern Carson and 
Gray Counties until 600 PM CST.

A Tornado Watch remains in effect until 900 PM CST for the Panhandle
of Texas.

Remember, a separate Tornado Warning still remains in effect for 
southeastern Armstrong and southwestern Donley counties until 600 PM 
CST.

LAT...LON 3487 10137 3503 10159 3550 10110 3531 10075
TIME...MOT...LOC 2331Z 224DEG 42KT 3536 10098 

$$

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, 4:52 PM CSTTornado WarningAMACarson, Gray38 min
Mar 13, 5:14 PM CSTTornado WarningAMAArmstrong, Donley46 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.