Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 221, NWS Amarillo, TX

July 25, 2021Donley County, Gray County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jul 25, 2021, 4:07 PM CDT for Donley County, Gray County, Texas. It was in force for 23 min. 4 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: Jul 25, 2021, 4:07 PM CDT (21:07 UTC)
Expired: Jul 25, 2021, 4:30 PM CDT
In force: 23 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Donley County, TX, Gray County, TX

The radar

The Amarillo radar (KAMA), 73 km from the middle of the area, began a volume at 21:08 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
Jul 25, 4:08 PM CDT	HAIL 2	5 N Howardwick, TX	GOLF BALL TO 2 INCH HAIL, WITH DAMAGE TO WINDSHIELD OF VEHICLE.
Jul 25, 4:09 PM CDT	TSTM WND GST 59	2 Nw Lake Mcclellan, TX	WEST TEXAS MESONET SITE MEASURED 59 MPH WIND GUST.
Jul 25, 4:13 PM CDT	HAIL 2	5 N Howardwick, TX	CORRECTS TIME OF THE PREVIOUS HAIL REPORT FROM 5 N HOWARDWICK. GOLF BALL TO 2 INCH HAIL, WITH DAMAGE TO WINDSHIELD OF VEHICLE.
Jul 25, 4:23 PM CDT	HAIL 0.88	6 Wsw Lake Mcclellan, TX	EM ON VACATION REPORTED NICKEL 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, 9.1 hours before the alert went out and 72 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: 769 J/kg
Mixed-layer CIN: -114 J/kg
Mixed-layer LCL: 1898 m above ground
0-6 km bulk shear: 3 kt
0-1 km storm-relative helicity: -59 m²/s²
0-3 km storm-relative helicity: 21 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

538 
WUUS54 KAMA 252107
SVRAMA
TXC129-179-252130-
/O.NEW.KAMA.SV.W.0221.210725T2107Z-210725T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
407 PM CDT Sun Jul 25 2021

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Southwestern Gray County in the Panhandle of Texas...
  Northwestern Donley County in the Panhandle of Texas...

* Until 430 PM CDT.

* At 407 PM CDT, a severe thunderstorm was located near Lake
  Mcclellan, or 17 miles north of Clarendon, moving east at 10 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...
  Howardwick, Lake Mcclellan and Alanreed. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3503 10106 3531 10102 3534 10073 3500 10072
TIME...MOT...LOC 2107Z 260DEG 9KT 3519 10092 

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

LFM

1 follow-up statement

888 
WWUS54 KAMA 252117
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
417 PM CDT Sun Jul 25 2021

TXC129-179-252130-
/O.CON.KAMA.SV.W.0221.000000T0000Z-210725T2130Z/
Gray TX-Donley TX-
417 PM CDT Sun Jul 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR SOUTHWESTERN GRAY AND NORTHWESTERN DONLEY COUNTIES...

At 416 PM CDT, automated weather equipment reported a severe
thunderstorm was located over Lake Mcclellan, or 18 miles north of
Clarendon, moving east at 10 mph.

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

SOURCE...Automated weather equipment near Lake McClellan measured 59 
         MPH wind gust at 4:09 PM CDT.

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

Locations impacted include...
Howardwick, Lake Mcclellan and Alanreed. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3503 10106 3531 10102 3534 10073 3500 10072
TIME...MOT...LOC 2116Z 258DEG 9KT 3520 10089 

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

LFM

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 25, 2:03 PM CDT	Special Weather Statement	AMA	Oldham	27 min
Jul 25, 2:37 PM CDT	Special Weather Statement	AMA	Randall	23 min
Jul 25, 2:51 PM CDT	Special Weather Statement	AMA	Armstrong	24 min
Jul 25, 3:00 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong	60 min
Jul 25, 3:13 PM CDT	Special Weather Statement	AMA	Randall	32 min
Jul 25, 3:24 PM CDT	Special Weather Statement	AMA	Carson, Gray	36 min
Jul 25, 3:33 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Potter, Randall	42 min
Jul 25, 3:44 PM CDT	Special Weather Statement	AMA	Donley	31 min
Jul 25, 3:52 PM CDT	Special Weather Statement	AMA	Ochiltree	38 min
Jul 25, 3:58 PM CDT	Special Weather Statement	AMA	Gray	32 min
Jul 25, 4:26 PM CDT	Severe Thunderstorm Warning	AMA	Donley, Gray	64 min
Jul 25, 4:36 PM CDT	Special Weather Statement	AMA	Ochiltree	24 min
Jul 25, 4:44 PM CDT	Severe Thunderstorm Warning	AMA	Roberts	61 min
Jul 25, 5:03 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb	27 min
Jul 25, 5:08 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Wheeler	37 min
Jul 25, 5:28 PM CDT	Special Weather Statement	AMA	Hemphill	32 min
Jul 25, 5:40 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Roberts, Wheeler	65 min
Jul 25, 5:44 PM CDT	Special Weather Statement	AMA	Wheeler	31 min
Jul 25, 6:11 PM CDT	Special Weather Statement	AMA	Moore	34 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.