Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 11, NWS Amarillo, TX

March 13, 2021Armstrong County, Randall County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Mar 13, 2021, 3:12 PM CST for Armstrong County, Randall County, Texas. It was in force for 63 min. 13 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, 3:12 PM CST (21:12 UTC)
Expired
Mar 13, 2021, 4:15 PM CST
In force
63 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon
Hail
1.5 in
Wind
60.0 mph

Counties Armstrong County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 44 km from the middle of the area, began a volume at 21:14 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, 3:26 PM CSTTORNADO13 S Canyon, TXCORRECTS PREVIOUS TORNADO REPORT FROM 13 S CANYON DUE TO TIME ZONE CHANGE. THIS TORNADO HAD A MAXIMUM PATH WIDTH OF 1000 YARDS, A PATH LENGTH OF 17.2 MILES, AND WAS RATED EF2 WITH AN ESTIMATED PEAK WIND SPEED OF 115 MPH. THE TORNADO LIFTED AT 4:00 PM APPROXIMA
Mar 13, 3:26 PM CSTTORNADO4 W Happy, TXCORRECTED FOR TIME ADJUSTED TO CDT. THIS TORNADO HAD A MAXIMUM PATH WIDTH OF 1000 YARDS, A PATH LENGTH OF 17.2 MILES, AND WAS RATED EF2 WITH AN ESTIMATED PEAK WIND SPEED OF 115 MPH. THE TORNADO LIFTED AT 4:00 PM CST APPROXIMATELY 5 MILES WEST OF PALO DURO CANY
Mar 13, 3:26 PM CSTTORNADO4 W Happy, TXCORRECTS PREVIOUS TORNADO REPORT FROM 13 S CANYON. THIS TORNADO HAD A MAXIMUM PATH WIDTH OF 1000 YARDS, A PATH LENGTH OF 17.2 MILES, AND WAS RATED EF2 WITH AN ESTIMATED PEAK WIND SPEED OF 115 MPH. THE TORNADO LIFTED AT 4:00 PM CST APPROXIMATELY 5 MILES WEST OF
Mar 13, 3:30 PM CSTTORNADO13 S Canyon, TXLARGE WEDGE TORNADO ON THE GROUND. TOUCH DOWN TIME 330 PM CST. STILL ON GOING.
Mar 13, 3:31 PM CSTTORNADO5 Nnw Happy, TXCORRECTED FOR TIME ADJUSTED TO CDT. THIS TORNADO HAD A MAXIMUM PATH WIDTH OF 500 YARDS, A PATH LENGTH OF 2.5 MILES, AND WAS RATED EF1 WITH AN ESTIMATED PEAK WIND SPEED OF 90 MPH. THE TORNADO LIFTED AT 3:36 PM APPROXIMATELY 6 MILES NORTH OF HAPPY. DAMAGE TO A B
Mar 13, 3:31 PM CSTTORNADO5 Nnw Happy, TXCORRECTED FOR TIME ADJUSTED TO CDT. THIS TORNADO HAD A MAXIMUM PATH WIDTH OF 500 YARDS, A PATH LENGTH OF 2.5 MILES, AND WAS RATED EF1 WITH AN ESTIMATED PEAK WIND SPEED OF 90 MPH. THE TORNADO LIFTED AT 3:36 PM CST APPROXIMATELY 6 MILES NORTH OF HAPPY. DAMAGE TO
Mar 13, 3:48 PM CSTTORNADO3 Wnw Palo Duro Canyon, TXCORRECTED FOR TIME ADJUSTED TO CDT. THE TORNADO BEGAN AT 3:48 PM CST. THIS TORNADO HAD A MAXIMUM PATH WIDTH OF 800 YARDS, A PATH LENGTH OF 8.5 MILES, AND WAS RATED EF1 WITH AN ESTIMATED PEAK WIND SPEED OF 110 MPH. THE TORNADO LIFTED AT 4:14 PM CST APPROXIMATEL
Mar 13, 3:55 PM CSTTORNADO3 Wnw Palo Duro Canyon, TXTORNADO TOUCHDOWN 3:55 PM. LARGE TORNADO ONGOING.
Mar 13, 4:05 PM CSTTSTM WND GST 763 Nnw Palo Duro Canyon, TXMESONET REPORTED 3 ONE MIN OBS FROM 68 TO 76 MPH GUSTS.
Mar 13, 4:06 PM CSTTORNADO4 Nne Palo Duro Canyon, TXCORRECTED FOR TIME ADJUSTED TO CDT. THE TORNADO BEGAN AT 4:06 PM CST. THIS TORNADO HAD A MAXIMUM PATH WIDTH OF 1000 YARDS , A PATH LENGTH OF 12.9 MILES, AND WAS RATED EF0 WITH AN ESTIMATED PEAK WIND SPEED OF 80 MPH. THE TORNADO LIFTED AT 4:34 PM CST APPROXIMAT
Mar 13, 4:15 PM CSTTSTM WND DMG4 Nw Palo Duro Canyon, TXDAMAGE AT THE ENTRANCE TO PALO DURO CANYON STATE PARK OCCURRED BETWEEN 355 PM CST AND 415 PM CST .
Mar 13, 4:22 PM CSTHAIL 1.51 Ene Palo Duro Canyon, TX
Mar 13, 4:22 PM CSTHAIL 1.52 Nnw Palo Duro Canyon, TXACTUAL TIME OF EVENT IS 4:22 PM CST ON MARCH 13TH. PING PONG BALL SIZED HAIL PICTURES SENT VIA TWITTER.

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, 12:36 PM CSTTornado WatchSPC5 hr
Mar 13, 2:26 PM CSTTornado WatchSPC7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.2 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.

367 
WUUS54 KAMA 132112
SVRAMA
TXC011-381-132215-
/O.NEW.KAMA.SV.W.0011.210313T2112Z-210313T2215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
312 PM CST Sat Mar 13 2021

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  West central Armstrong County in the Panhandle of Texas...
  Southern Randall County in the Panhandle of Texas...

* Until 415 PM CST.

* At 312 PM CST, a severe thunderstorm was located 11 miles 
  southwest of Happy, or 16 miles northwest of Tulia, moving 
  northeast at 40 mph.

  HAZARD...Ping pong ball size hail and 60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Minor damage to roofs, siding, and trees is possible. 
           People and animals outdoors will be injured. Expect hail 
           damage to roofs, siding, windows, and vehicles.

* Locations impacted include...
  Canyon and Palo Duro Canyon. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 PM CST for the Panhandle
of Texas. A Tornado Watch also remains in effect until 900 PM CST for
the Panhandle of Texas.

For your protection move to an interior room on the lowest floor of a
building.

To report severe weather, contact your nearest law enforcement
agency. They will send your report to the National Weather Service
office in Amarillo.

&&

LAT...LON 3475 10212 3503 10190 3503 10153 3475 10176
TIME...MOT...LOC 2112Z 219DEG 30KT 3465 10202 

HAIL...1.50IN
WIND...60MPH
 
$$

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, 3:14 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, 5:14 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

Severe Thunderstorm Warnings in Texas, 2021Every severe thunderstorm warning 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.