Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 94, NWS Amarillo, TX

May 18, 2021Deaf Smith County, Oldham County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 18, 2021, 2:53 PM CDT for Deaf Smith County, Oldham County, Texas. It was in force for 97 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 18, 2021, 2:53 PM CDT (19:53 UTC)
Expired: May 18, 2021, 4:30 PM CDT
In force: 97 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Deaf Smith County, TX, Oldham County, TX

The radar

The Amarillo radar (KAMA), 98 km from the middle of the area, began a volume at 19:57 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 18, 2:53 PM CDT	FUNNEL CLOUD	13 Sse Glenrio, TX	FUNNEL HALF WAY TO GROUND.
May 18, 4:09 PM CDT	HAIL 1	1 Se Adrian, TX
May 18, 4:23 PM CDT	HAIL 1	4 W Vega, TX	REPORT FROM MPING: QUARTER (1.00 IN.).

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, 7.9 hours before the alert went out and 99 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: 1488 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: -55 m²/s²
0-3 km storm-relative helicity: 72 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

444 
WUUS54 KAMA 181953
SVRAMA
TXC117-359-182130-
/O.NEW.KAMA.SV.W.0094.210518T1953Z-210518T2130Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
253 PM CDT Tue May 18 2021

The National Weather Service in Amarillo has issued a

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

* Until 430 PM CDT.

* At 253 PM CDT, a severe thunderstorm was located 13 miles south of
  Glenrio, or 27 miles northwest of Friona, moving northeast at 10
  mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Adrian, Glenrio, Bootleg and Simms. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3562 10304 3563 10238 3526 10245 3476 10280
      3481 10304
TIME...MOT...LOC 1953Z 224DEG 9KT 3499 10297 

HAIL...1.25IN
WIND...60MPH
 
$$

LG

5 follow-up statements

871 
WWUS54 KAMA 182008
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
308 PM CDT Tue May 18 2021

TXC117-359-182130-
/O.CON.KAMA.SV.W.0094.000000T0000Z-210518T2130Z/
Oldham TX-Deaf Smith TX-
308 PM CDT Tue May 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR OLDHAM AND WESTERN DEAF SMITH COUNTIES...

At 307 PM CDT, a severe thunderstorm was located 11 miles southeast
of Glenrio, or 29 miles southwest of Vega, 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...
Adrian, Glenrio, Bootleg and Simms. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3562 10304 3563 10238 3526 10245 3476 10280
      3481 10304
TIME...MOT...LOC 2007Z 215DEG 16KT 3506 10289 

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

LG

619 
WWUS54 KAMA 182023
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
323 PM CDT Tue May 18 2021

TXC117-359-182130-
/O.CON.KAMA.SV.W.0094.000000T0000Z-210518T2130Z/
Oldham TX-Deaf Smith TX-
323 PM CDT Tue May 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR OLDHAM AND WESTERN DEAF SMITH COUNTIES...

At 323 PM CDT, a severe thunderstorm was located 10 miles northwest
of Simms, or 23 miles west of Vega, moving northeast at 25 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...
Adrian, Glenrio, Bootleg and Simms. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3562 10304 3563 10238 3526 10245 3476 10280
      3481 10304
TIME...MOT...LOC 2023Z 220DEG 20KT 3512 10281 

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

LG

535 
WWUS54 KAMA 182028
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
328 PM CDT Tue May 18 2021

TXC117-359-182130-
/O.CON.KAMA.SV.W.0094.000000T0000Z-210518T2130Z/
Oldham TX-Deaf Smith TX-
328 PM CDT Tue May 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR OLDHAM AND WESTERN DEAF SMITH COUNTIES...

At 328 PM CDT, a severe thunderstorm was located 7 miles northwest of
Simms, or 19 miles southwest of Vega, 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...
Adrian, Glenrio, Bootleg and Simms. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3562 10304 3563 10238 3526 10245 3476 10280
      3481 10304
TIME...MOT...LOC 2028Z 222DEG 18KT 3513 10274 

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

LG

236 
WWUS54 KAMA 182037
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
337 PM CDT Tue May 18 2021

TXC117-359-182130-
/O.CON.KAMA.SV.W.0094.000000T0000Z-210518T2130Z/
Oldham TX-Deaf Smith TX-
337 PM CDT Tue May 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR OLDHAM AND WESTERN DEAF SMITH COUNTIES...

At 337 PM CDT, a severe thunderstorm was located 8 miles north of
Simms, or 17 miles southwest of Vega, moving northeast at 15 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Adrian, Glenrio, Bootleg and Simms. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3562 10304 3563 10238 3526 10245 3476 10280
      3481 10304
TIME...MOT...LOC 2037Z 223DEG 11KT 3515 10271 

HAIL...1.25IN
WIND...60MPH
 
$$

LG

185 
WWUS54 KAMA 182048
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
348 PM CDT Tue May 18 2021

TXC117-359-182130-
/O.CON.KAMA.SV.W.0094.000000T0000Z-210518T2130Z/
Oldham TX-Deaf Smith TX-
348 PM CDT Tue May 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM CDT
FOR OLDHAM AND WESTERN DEAF SMITH COUNTIES...

At 348 PM CDT, a severe thunderstorm was located 5 miles south of
Adrian, or 14 miles west of Vega, moving northeast at 20 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Adrian, Glenrio, Bootleg and Simms. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3562 10304 3563 10238 3526 10245 3476 10280
      3481 10304
TIME...MOT...LOC 2048Z 206DEG 16KT 3519 10268 

HAIL...1.25IN
WIND...60MPH
 
$$

LG

The office that day

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

Issued	Product	Office	Counties	Lasted
May 17, 7:06 PM CDT	Areal Flood Advisory	AMA	Randall	21 min
May 17, 7:15 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley, Moore, Sherman	60 min
May 17, 7:15 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Hartley, Moore, Oldham, Potter, Randall	60 min
May 17, 7:27 PM CDT	Flash Flood Warning	AMA	Randall	3 hr
May 17, 7:30 PM CDT	Areal Flood Advisory	AMA	Dallam, Hartley, Oldham	36 min
May 17, 7:33 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Randall	27 min
May 17, 7:35 PM CDT	Areal Flood Advisory	AMA	Potter, Randall	3 hr
May 17, 7:36 PM CDT	Special Weather Statement	AMA	Moore	24 min
May 17, 7:59 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Hartley, Hutchinson, Moore, Potter and 1 more	76 min
May 17, 8:05 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Sherman	55 min
May 17, 8:06 PM CDT	Flash Flood Warning	AMA	Dallam, Hartley, Oldham	52 min
May 17, 8:09 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Collingsworth, Donley, Gray	66 min
May 17, 8:41 PM CDT	Special Weather Statement	AMA	Dallam, Sherman	34 min
May 17, 9:08 PM CDT	Severe Thunderstorm Warning	AMA	Gray, Roberts	67 min
May 17, 9:15 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Hansford, Hutchinson, Moore, Ochiltree, Potter and 2 more	60 min
May 17, 9:52 PM CDT	Special Weather Statement	AMA	Hansford, Hemphill, Ochiltree, Roberts	23 min
May 17, 10:13 PM CDT	Special Weather Statement	AMA	Hemphill, Lipscomb, Ochiltree, Roberts	62 min
May 17, 11:11 PM CDT	Special Weather Statement	AMA	Lipscomb	49 min
May 18, 6:43 AM CDT	Dense Fog Advisory	AMA	Armstrong, Carson, Deaf Smith, Oldham, Potter, Randall	2 hr
May 18, 10:31 AM CDT	Special Weather Statement	AMA	Deaf Smith	44 min
May 18, 2:43 PM CDT	Special Weather Statement	AMA	Deaf Smith	62 min
May 18, 3:21 PM CDT	Special Weather Statement	AMA	Carson	39 min
May 18, 4:00 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter	90 min
May 18, 4:16 PM CDT	Special Weather Statement	AMA	Carson	44 min
May 18, 5:19 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Moore, Oldham, Potter, Randall	86 min
May 18, 5:26 PM CDT	Areal Flood Advisory	AMA	Potter, Randall	3 hr
May 18, 5:27 PM CDT	Special Weather Statement	AMA	Carson	33 min
May 18, 5:45 PM CDT	Areal Flood Advisory	AMA	Armstrong, Carson, Hutchinson	3 hr
May 18, 6:03 PM CDT	Special Weather Statement	AMA	Carson	42 min
May 18, 6:28 PM CDT	Special Weather Statement	AMA	Hutchinson	47 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.