Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 47, NWS Amarillo, TX

May 14, 20214 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 14, 2021, 5:55 PM CDT for 4 counties in Texas. It was in force for 65 min. 2 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: May 14, 2021, 5:55 PM CDT (22:55 UTC)
Expired: May 14, 2021, 7:00 PM CDT
In force: 65 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 70.0 mph

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

The radar

The Amarillo radar (KAMA), 81 km from the middle of the area, began a volume at 22:59 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, 6:38 PM CDT	HAIL 1	1 Nw Wildorado, TX
May 14, 7:00 PM CDT	TSTM WND GST 70	4 E Vega, TX	THE WEST TEXAS MESONET SITE AT VEGA GUSTED TO 70 MPH.

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 12:00Z, 10.9 hours before the alert went out and 82 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: 51 J/kg
Mixed-layer CIN: -519 J/kg
Mixed-layer LCL: 807 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 364 m²/s²
0-3 km storm-relative helicity: 385 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

942 
WUUS54 KAMA 142255
SVRAMA
TXC117-359-375-381-150000-
/O.NEW.KAMA.SV.W.0047.210514T2255Z-210515T0000Z/

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

The National Weather Service in Amarillo has issued a

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

* Until 700 PM CDT.

* At 555 PM CDT, severe thunderstorms were located along a line
  extending from Adrian to 8 miles south of Wildorado to near
  Summerfield, moving northeast at 20 mph.

  HAZARD...70 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Amarillo, Hereford, Canyon, Vega, Adrian, Glenrio, Bushland,
  Buffalo Lake, Umbarger, Bootleg, Wildorado, Dawn, Simms and
  Mescalero Park.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3475 10294 3503 10290 3518 10303 3562 10255
      3563 10253 3535 10192 3475 10193
TIME...MOT...LOC 2255Z 221DEG 17KT 3528 10264 3509 10227 3475 10256 

HAIL...1.25IN
WIND...70MPH
 
$$

Bieda

1 follow-up statement

613 
WWUS54 KAMA 142346
SVSAMA

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

TXC117-359-375-381-150000-
/O.CON.KAMA.SV.W.0047.000000T0000Z-210515T0000Z/
Randall TX-Oldham TX-Deaf Smith TX-Potter TX-
646 PM CDT Fri May 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 PM CDT
FOR WESTERN RANDALL...EASTERN OLDHAM...DEAF SMITH AND SOUTHWESTERN
POTTER COUNTIES...

At 645 PM CDT, severe thunderstorms were located along a line
extending from 12 miles north of Vega to 4 miles northwest of
Bushland to 4 miles north of Hereford, moving northeast at 20 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...
Amarillo, Hereford, Canyon, Vega, Adrian, Bushland, Buffalo Lake,
Dawn, Umbarger, Wildorado, Simms and Mescalero Park.

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 10273 3499 10253 3505 10283 3522 10288
      3561 10250 3535 10192 3475 10193
TIME...MOT...LOC 2345Z 221DEG 17KT 3542 10248 3524 10211 3489 10240 

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

Bieda

The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 9:03 AM CDT	Special Weather Statement	AMA	Roberts	27 min
May 14, 11:03 AM CDT	Special Weather Statement	AMA	Wheeler	27 min
May 14, 4:49 PM CDT	Special Weather Statement	AMA	Deaf Smith	41 min
May 14, 4:51 PM CDT	Special Weather Statement	AMA	Dallam	24 min
May 14, 5:11 PM CDT	Special Weather Statement	AMA	Dallam	34 min
May 14, 5:13 PM CDT	Special Weather Statement	AMA	Moore	32 min
May 14, 5:20 PM CDT	Special Weather Statement	AMA	Oldham	40 min
May 14, 5:27 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham	63 min
May 14, 5:31 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Moore, Oldham, Potter	59 min
May 14, 5:33 PM CDT	Special Weather Statement	AMA	Deaf Smith	42 min
May 14, 5:41 PM CDT	Special Weather Statement	AMA	Sherman	34 min
May 14, 5:48 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Sherman	57 min
May 14, 5:59 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley, Sherman	61 min
May 14, 6:26 PM CDT	Special Weather Statement	AMA	Moore	34 min
May 14, 6:34 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley, Moore, Potter, Sherman	56 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.