Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 50, NWS Amarillo, TX

May 14, 20216 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 14, 2021, 7:06 PM CDT for 6 counties in Texas. It was in force for 54 min. 1 report 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: May 14, 2021, 7:06 PM CDT (00:06 UTC)
Expired: May 14, 2021, 8:00 PM CDT
In force: 54 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Armstrong County, TX, Carson County, TX, Deaf Smith County, TX, Oldham County, TX, Potter County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 36 km from the middle of the area, began a volume at 00:05 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

Time	Report	Where	Remark
May 14, 7:29 PM CDT	TSTM WND GST 65	4 Sw Amarillo, TX	REPORT OF SEVERAL TREE BRANCHES DOWN AROUND 3 INCHES IN DIAMETER.

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.

Issued	Product	Office	Lasted
May 14, 4:30 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 0.1 hours before the alert went out and 37 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: 981 J/kg
Mixed-layer CIN: -97 J/kg
Mixed-layer LCL: 1886 m above ground
0-6 km bulk shear: 46 kt
0-1 km storm-relative helicity: 97 m²/s²
0-3 km storm-relative helicity: 400 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 5.2

Open this sounding in Storm Lab

The text

As transmitted.

868 
WUUS54 KAMA 150006
SVRAMA
TXC011-065-117-359-375-381-150100-
/O.NEW.KAMA.SV.W.0050.210515T0006Z-210515T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
706 PM CDT Fri May 14 2021

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Western Armstrong County in the Panhandle of Texas...
  Randall County in the Panhandle of Texas...
  Southwestern Carson County in the Panhandle of Texas...
  Southeastern Oldham County in the Panhandle of Texas...
  Eastern Deaf Smith County in the Panhandle of Texas...
  Potter County in the Panhandle of Texas...

* Until 800 PM CDT.

* At 705 PM CDT, severe thunderstorms were located along a line
  extending from 3 miles south of Vega to Bushland to 8 miles south
  of Buffalo Lake, moving east at 20 mph.

  HAZARD...70 mph wind gusts and quarter size hail.

  SOURCE...Automated weather equipment 4 miles east of Vega reported 
           70 MPH wind gust at 700 PM CDT.

  IMPACT...Expect some tree damage. Damage is likely to mobile 
           homes, roofs, and outbuildings. Hail damage to vehicles 
           is expected.

* Locations impacted include...
  Amarillo, Canyon, Vega, Lake Tanglewood, Bushland, Buffalo Lake,
  Valley De Oro, Umbarger, Wildorado, Palo Duro Canyon, Mescalero
  Park, Dawn and Timbercreek Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3552 10216 3546 10161 3475 10162 3475 10226
      3502 10233 3519 10258
TIME...MOT...LOC 0005Z 260DEG 19KT 3520 10244 3520 10209 3477 10209 

HAIL...1.00IN
WIND...70MPH
 
$$

Bieda

1 follow-up statement

189 
WWUS54 KAMA 150041
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
741 PM CDT Fri May 14 2021

TXC117-359-150051-
/O.CAN.KAMA.SV.W.0050.000000T0000Z-210515T0100Z/
Oldham TX-Deaf Smith TX-
741 PM CDT Fri May 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN OLDHAM AND
EASTERN DEAF SMITH COUNTIES IS CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
the Panhandle of Texas.

LAT...LON 3475 10194 3550 10196 3546 10161 3475 10162
TIME...MOT...LOC 0041Z 245DEG 25KT 3528 10185 3516 10173 

$$

TXC011-065-375-381-150100-
/O.CON.KAMA.SV.W.0050.000000T0000Z-210515T0100Z/
Armstrong TX-Randall TX-Carson TX-Potter TX-
741 PM CDT Fri May 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR WESTERN ARMSTRONG...EASTERN RANDALL...SOUTHWESTERN CARSON AND
SOUTHEASTERN POTTER COUNTIES...

At 741 PM CDT, severe thunderstorms were located along a line
extending from 5 miles north of Amarillo to 7 miles northeast of Lake
Tanglewood, moving northeast at 30 mph.

HAZARD...70 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect some tree damage. Damage is likely to mobile homes, 
         roofs, and outbuildings.

Locations impacted include...
Amarillo, Canyon, Lake Tanglewood, Mescalero Park, Palo Duro Canyon
and Timbercreek Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3475 10194 3550 10196 3546 10161 3475 10162
TIME...MOT...LOC 0041Z 245DEG 25KT 3528 10185 3516 10173 

HAIL...<.75IN
WIND...70MPH
 
$$

LFM

The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 7:00 PM CDT	Special Weather Statement	AMA	Potter, Randall	60 min
May 14, 7:04 PM CDT	Special Weather Statement	AMA	Hutchinson	41 min
May 14, 7:10 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Gray, Hansford, Hutchinson, Ochiltree, Roberts	95 min
May 14, 7:49 PM CDT	Special Weather Statement	AMA	Moore, Sherman	26 min
May 14, 7:55 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Potter, Randall	65 min
May 14, 8:04 PM CDT	Special Weather Statement	AMA	Randall	26 min
May 14, 8:37 PM CDT	Special Weather Statement	AMA	Potter, Randall	23 min
May 14, 8:40 PM CDT	Special Weather Statement	AMA	Gray, Roberts	35 min
May 14, 8:43 PM CDT	Special Weather Statement	AMA	Armstrong, Carson, Donley	32 min
May 14, 9:20 PM CDT	Special Weather Statement	AMA	Armstrong, Carson, Collingsworth, Donley, Gray, Hemphill and 1 more	55 min
May 14, 9:59 PM CDT	Special Weather Statement	AMA	Armstrong, Collingsworth, Donley, Gray, Hemphill, Wheeler	46 min
May 14, 10:44 PM CDT	Special Weather Statement	AMA	Collingsworth	31 min
May 14, 11:15 PM CDT	Special Weather Statement	AMA	Collingsworth	60 min
May 15, 12:13 AM CDT	Areal Flood Advisory	AMA	Randall	3 hr
May 15, 6:57 PM CDT	Severe Thunderstorm Warning	AMA	Dallam	63 min

Nearby

Severe Thunderstorm Warnings in Texas, 2021 Every 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.