Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 40, NWS Amarillo, TX

May 7, 20216 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 7, 2021, 6:27 PM CDT for 6 counties in Texas. It was in force for 63 min. 5 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 7, 2021, 6:27 PM CDT (23:27 UTC)
Expired: May 7, 2021, 7:30 PM CDT
In force: 63 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Carson County, TX, Gray County, TX, Hansford County, TX, Hutchinson County, TX, Ochiltree County, TX, Roberts County, TX

The radar

The Amarillo radar (KAMA), 89 km from the middle of the area, began a volume at 23:29 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 7, 6:27 PM CDT	TSTM WND GST 62	7 Nnw Skellytown, TX	BORGER 10E WEST TEXAS MESONET.
May 7, 6:29 PM CDT	HAIL 1	12 Wnw Codman, TX	HAIL WAS ACCUMULATING ON HIGHWAY 70.
May 7, 6:30 PM CDT	TSTM WND DMG	Stinnett, TX	TRAINED SPOTTER REPORTS TREE LIMBS BEING SNAPPED OFF AND THROWN 2 TO 3 BLOCKS BEFORE LANDING ON THE GROUND. ALSO, POWER LINES ARE ARCING.
May 7, 6:48 PM CDT	TSTM WND GST 58	22 Sse Spearman, TX
May 7, 6:48 PM CDT	HAIL 1	Miami, TX	PENNY TO QUARTER SIZE HAIL.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.5 hours before the alert went out and 89 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1870 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 341 m²/s²
0-3 km storm-relative helicity: 598 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

426 
WUUS54 KAMA 072327
SVRAMA
TXC065-179-195-233-357-393-080030-
/O.NEW.KAMA.SV.W.0040.210507T2327Z-210508T0030Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
627 PM CDT Fri May 7 2021

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Northeastern Carson County in the Panhandle of Texas...
  Hutchinson County in the Panhandle of Texas...
  Northern Gray County in the Panhandle of Texas...
  Southeastern Hansford County in the Panhandle of Texas...
  Roberts County in the Panhandle of Texas...
  Southern Ochiltree County in the Panhandle of Texas...

* Until 730 PM CDT.

* At 627 PM CDT, severe thunderstorms were located along a line
  extending from 3 miles north of Spearman to 13 miles east of
  Stinnett to 5 miles southeast of Borger, moving east at 50 mph.

  HAZARD...70 mph wind gusts and quarter 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...
  Pampa, Borger, Spearman, Miami, Stinnett, White Deer, Lefors,
  Skellytown, Sanford, Wolf Creek Park, Waka, Pringle, Lora,
  Kingsmill and Codman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3532 10065 3547 10146 3581 10161 3631 10123
      3628 10055 3574 10054
TIME...MOT...LOC 2327Z 279DEG 45KT 3624 10121 3584 10121 3562 10132 

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

Guerrero

1 follow-up statement

575 
WWUS54 KAMA 080017
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
717 PM CDT Fri May 7 2021

TXC065-195-233-080026-
/O.CAN.KAMA.SV.W.0040.000000T0000Z-210508T0030Z/
Carson TX-Hutchinson TX-Hansford TX-
717 PM CDT Fri May 7 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN CARSON...
HUTCHINSON AND SOUTHEASTERN HANSFORD COUNTIES IS CANCELLED...

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

LAT...LON 3532 10065 3545 10109 3630 10107 3628 10055
      3574 10054
TIME...MOT...LOC 0016Z 279DEG 45KT 3614 10046 3574 10047 3552 10058 

$$

TXC179-357-393-080030-
/O.CON.KAMA.SV.W.0040.000000T0000Z-210508T0030Z/
Gray TX-Roberts TX-Ochiltree TX-
717 PM CDT Fri May 7 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 730 PM CDT
FOR NORTHERN GRAY...ROBERTS AND SOUTHERN OCHILTREE COUNTIES...

At 716 PM CDT, severe thunderstorms were located along a line
extending from 11 miles southeast of Wolf Creek Park to 5 miles east
of Lora to 7 miles west of New Mobeetie, 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...
Pampa, Miami, Lefors, Wolf Creek Park, Lora, Kingsmill, Waka and
Codman.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3532 10065 3545 10109 3630 10107 3628 10055
      3574 10054
TIME...MOT...LOC 0016Z 279DEG 45KT 3614 10046 3574 10047 3552 10058 

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

Guerrero

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 2:42 PM CDT	Fire Weather Watch	AMA	Dallam, Deaf Smith, Hartley, Oldham	13 hr
May 7, 3:33 PM CDT	Special Weather Statement	AMA	Moore	57 min
May 7, 4:33 PM CDT	Special Weather Statement	AMA	Oldham	57 min
May 7, 4:38 PM CDT	Special Weather Statement	AMA	Dallam	67 min
May 7, 4:47 PM CDT	Special Weather Statement	AMA	Potter	58 min
May 7, 4:52 PM CDT	Severe Thunderstorm Warning	AMA	Oldham	68 min
May 7, 5:00 PM CDT	Special Weather Statement	AMA	Lipscomb	60 min
May 7, 5:03 PM CDT	Special Weather Statement	AMA	Sherman	57 min
May 7, 5:06 PM CDT	Special Weather Statement	AMA	Randall	54 min
May 7, 5:13 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Moore, Sherman	62 min
May 7, 5:20 PM CDT	Special Weather Statement	AMA	Deaf Smith	55 min
May 7, 5:38 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Deaf Smith, Hutchinson, Moore, Oldham and 2 more	82 min
May 7, 6:01 PM CDT	Special Weather Statement	AMA	Hansford, Hutchinson, Ochiltree	59 min
May 7, 6:19 PM CDT	Special Weather Statement	AMA	Roberts	56 min
May 7, 6:45 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Lipscomb, Ochiltree, Roberts	60 min
May 7, 6:50 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Donley, Gray, Randall	55 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.