Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 9, NWS Amarillo, TX

March 13, 2021Deaf Smith County, Hartley County, Oldham County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Mar 13, 2021, 1:54 PM CST for Deaf Smith County, Hartley County, Oldham County, Texas. It was in force for 51 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
Mar 13, 2021, 1:54 PM CST (19:54 UTC)
Expired
Mar 13, 2021, 2:45 PM CST
In force
51 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

Counties Deaf Smith County, TX, Hartley County, TX, Oldham County, TX

The radar

The Amarillo radar (KAMA), 105 km from the middle of the area, began a volume at 19:58 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.

IssuedProductOfficeLasted
Mar 13, 12:36 PM CSTTornado WatchSPC5 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 7.9 hours before the alert went out and 106 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.

016 
WUUS54 KAMA 131954
SVRAMA
TXC117-205-359-132045-
/O.NEW.KAMA.SV.W.0009.210313T1954Z-210313T2045Z/

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

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Oldham County in the Panhandle of Texas...
  Northwestern Deaf Smith County in the Panhandle of Texas...
  Western Hartley County in the Panhandle of Texas...

* Until 245 PM CST.

* At 153 PM CST, severe thunderstorms were located along a line
  extending from 5 miles south of Romero to 14 miles southeast of
  Nara Visa to 6 miles south of Glenrio, moving northeast at 50 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Automated weather equipment. At 140 PM CST, a 59 mph gust 
           was measured in Endee NM.

  IMPACT...Minor damage to roofs, siding, and trees is possible. 
           Hail damage to vehicles is expected.

* Locations impacted include...
  Adrian, Glenrio and Romero. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 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 3578 10304 3605 10256 3589 10244 3526 10249
      3500 10304
TIME...MOT...LOC 1953Z 216DEG 45KT 3565 10293 3545 10293 3509 10299 

HAIL...1.00IN
WIND...60MPH
 
$$

Ferguson
1 follow-up statement
554 
WWUS54 KAMA 132012
SVSAMA

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

TXC117-205-359-132045-
/O.CON.KAMA.SV.W.0009.000000T0000Z-210313T2045Z/
Oldham TX-Deaf Smith TX-Hartley TX-
212 PM CST Sat Mar 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM CST
FOR WESTERN OLDHAM...NORTHWESTERN DEAF SMITH AND WESTERN HARTLEY
COUNTIES...

At 212 PM CST, severe thunderstorms were located along a line
extending from 11 miles northeast of Romero to 18 miles east of Nara
Visa to 9 miles west of Adrian, moving east at 50 mph.

HAZARD...60 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Minor damage to roofs, siding, and trees is possible. Hail 
         damage to vehicles is expected.

Locations impacted include...
Adrian.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

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

LAT...LON 3583 10289 3605 10256 3589 10244 3526 10249
      3503 10297 3542 10296 3559 10297
TIME...MOT...LOC 2012Z 270DEG 45KT 3582 10277 3562 10277 3526 10284 

HAIL...1.00IN
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, 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, 5:14 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.