Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 224, NWS Amarillo, TX

July 25, 2021Roberts County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Jul 25, 2021, 4:44 PM CDT for Roberts County, Texas. It was in force for 61 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: Jul 25, 2021, 4:44 PM CDT (21:44 UTC)
Expired: Jul 25, 2021, 5:45 PM CDT
In force: 61 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Roberts County, TX

The radar

The Amarillo radar (KAMA), 108 km from the middle of the area, began a volume at 21:46 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, 5:28 PM CDT	HAIL 0.88	6 N Miami, TX

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, 9.7 hours before the alert went out and 108 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.

526 
WUUS54 KAMA 252144
SVRAMA
TXC393-252245-
/O.NEW.KAMA.SV.W.0224.210725T2144Z-210725T2245Z/

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

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Roberts County in the Panhandle of Texas...

* Until 545 PM CDT.

* At 444 PM CDT, severe thunderstorms were located along a line
  extending from 13 miles north of Lora to near Codman, 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...
  Miami, Codman and Lora. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3562 10054 3562 10108 3584 10108 3606 10067
      3606 10054
TIME...MOT...LOC 2144Z 229DEG 16KT 3592 10064 3566 10072 

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

LFM

1 follow-up statement

997 
WWUS54 KAMA 252215
SVSAMA

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

TXC393-252245-
/O.CON.KAMA.SV.W.0224.000000T0000Z-210725T2245Z/
Roberts TX-
515 PM CDT Sun Jul 25 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT
FOR ROBERTS COUNTY...

At 515 PM CDT, severe thunderstorms were located along a line
extending from 13 miles northwest of Lora to near Miami, moving
northeast at 10 mph.

HAZARD...Two inch hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Minor damage to roofs, siding, and trees is possible. 
         People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles.

Locations impacted include...
Miami, Codman and Lora. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3562 10055 3562 10097 3589 10097 3605 10067
      3605 10054
TIME...MOT...LOC 2215Z 226DEG 7KT 3591 10068 3569 10068 

HAIL...2.00IN
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, 4:07 PM CDT	Severe Thunderstorm Warning	AMA	Donley, Gray	23 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, 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.