Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 52, NWS Amarillo, TX

May 14, 20214 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 14, 2021, 7:55 PM CDT for 4 counties in Texas. It was in force for 65 min. 3 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, 7:55 PM CDT (00:55 UTC)
Expired: May 14, 2021, 9:00 PM CDT
In force: 65 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Armstrong County, TX, Carson County, TX, Potter County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 20 km from the middle of the area, began a volume at 00:57 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, 8:06 PM CDT	TSTM WND GST 65	2 E Pantex, TX	WIND GUST AT PANTEX.
May 14, 8:45 PM CDT	TSTM WND GST 66	2 E Pantex, TX
May 14, 8:52 PM CDT	TSTM WND GST 68	2 E Pantex, TX

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, 0.9 hours before the alert went out and 19 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.

590 
WUUS54 KAMA 150055
SVRAMA
TXC011-065-375-381-150200-
/O.NEW.KAMA.SV.W.0052.210515T0055Z-210515T0200Z/

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

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Northern Armstrong County in the Panhandle of Texas...
  Northeastern Randall County in the Panhandle of Texas...
  Southern Carson County in the Panhandle of Texas...
  Southeastern Potter County in the Panhandle of Texas...

* Until 900 PM CDT.

* At 755 PM CDT, a severe thunderstorm was located 6 miles north of
  Washburn, or 11 miles southwest of Panhandle, moving northeast at
  20 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Amarillo, Panhandle, Claude, White Deer, Groom, Washburn, Goodnight
  and Pantex.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3501 10178 3538 10175 3545 10109 3503 10109
TIME...MOT...LOC 0055Z 242DEG 19KT 3527 10156 

HAIL...<.75IN
WIND...60MPH
 
$$

LFM

1 follow-up statement

572 
WWUS54 KAMA 150114
SVSAMA

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

TXC375-381-150124-
/O.CAN.KAMA.SV.W.0052.000000T0000Z-210515T0200Z/
Randall TX-Potter TX-
814 PM CDT Fri May 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN RANDALL AND
SOUTHEASTERN POTTER COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has 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 3541 10148 3545 10109 3503 10109 3502 10163
TIME...MOT...LOC 0114Z 245DEG 26KT 3535 10132 

$$

TXC011-065-150200-
/O.CON.KAMA.SV.W.0052.000000T0000Z-210515T0200Z/
Armstrong TX-Carson TX-
814 PM CDT Fri May 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM CDT
FOR NORTHERN ARMSTRONG AND SOUTHERN CARSON COUNTIES...

At 814 PM CDT, a severe thunderstorm was located near Panhandle,
moving northeast at 30 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

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

Locations impacted include...
Panhandle, Claude, White Deer, Groom and Goodnight. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3541 10148 3545 10109 3503 10109 3502 10163
TIME...MOT...LOC 0114Z 245DEG 26KT 3535 10132 

HAIL...<.75IN
WIND...60MPH
 
$$

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, 7:06 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Deaf Smith, Oldham, Potter, Randall	54 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, 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.