Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 96, NWS Amarillo, TX

May 18, 20216 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 18, 2021, 5:19 PM CDT for 6 counties in Texas. It was in force for 86 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, 5:19 PM CDT (22:19 UTC)
Expired: May 18, 2021, 6:45 PM CDT
In force: 86 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

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

The radar

The Amarillo radar (KAMA), 33 km from the middle of the area, began a volume at 22:23 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, 5:20 PM CDT	FUNNEL CLOUD	6 Sse Boys Ranch, TX	BRIEF FUNNEL CLOUD.
May 18, 5:50 PM CDT	HAIL 0.7	5 E Bushland, TX
May 18, 5:52 PM CDT	HAIL 0.5	6 Wsw Amarillo, 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, 10.3 hours before the alert went out and 34 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.

794 
WUUS54 KAMA 182219
SVRAMA
TXC011-065-341-359-375-381-182345-
/O.NEW.KAMA.SV.W.0096.210518T2219Z-210518T2345Z/

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

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Northwestern Armstrong County in the Panhandle of Texas...
  Northern Randall County in the Panhandle of Texas...
  Southwestern Carson County in the Panhandle of Texas...
  Eastern Oldham County in the Panhandle of Texas...
  Potter County in the Panhandle of Texas...
  Southern Moore County in the Panhandle of Texas...

* Until 645 PM CDT.

* At 519 PM CDT, severe thunderstorms were located along a line
  extending from 6 miles west of Valley De Oro to 4 miles south of
  Bushland, moving east 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...
  Amarillo, Canyon, Lake Tanglewood, Bushland, Valley De Oro,
  Washburn, Boys Ranch, Mescalero Park, Four Way, Masterson, Lake
  Meredith, Timbercreek Canyon and Pantex.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3510 10217 3518 10217 3518 10221 3560 10245
      3563 10233 3563 10216 3567 10216 3577 10170
      3539 10150 3499 10152 3489 10205
TIME...MOT...LOC 2219Z 266DEG 20KT 3542 10222 3513 10206 

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

LG

8 follow-up statements

806 
WWUS54 KAMA 182232
SVSAMA

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

TXC011-065-341-359-375-381-182345-
/O.CON.KAMA.SV.W.0096.000000T0000Z-210518T2345Z/
Armstrong TX-Randall TX-Carson TX-Oldham TX-Potter TX-Moore TX-
532 PM CDT Tue May 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHWESTERN ARMSTRONG...NORTHERN RANDALL...SOUTHWESTERN
CARSON...EASTERN OLDHAM...POTTER AND SOUTHERN MOORE COUNTIES...

At 532 PM CDT, severe thunderstorms were located along a line
extending from Valley De Oro to 4 miles northwest of Mescalero Park,
moving east 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...
Amarillo, Canyon, Lake Tanglewood, Bushland, Valley De Oro, Washburn,
Boys Ranch, Mescalero Park, Four Way, Masterson, Lake Meredith,
Timbercreek Canyon and Pantex.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3510 10217 3518 10217 3518 10221 3560 10245
      3563 10233 3563 10216 3567 10216 3577 10170
      3539 10150 3499 10152 3489 10205
TIME...MOT...LOC 2232Z 266DEG 18KT 3544 10210 3510 10197 

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

LG

303 
WWUS54 KAMA 182241
SVSAMA

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

TXC011-065-341-359-375-381-182345-
/O.CON.KAMA.SV.W.0096.000000T0000Z-210518T2345Z/
Armstrong TX-Randall TX-Carson TX-Oldham TX-Potter TX-Moore TX-
541 PM CDT Tue May 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHWESTERN ARMSTRONG...NORTHERN RANDALL...SOUTHWESTERN
CARSON...EASTERN OLDHAM...POTTER AND SOUTHERN MOORE COUNTIES...

At 541 PM CDT, severe thunderstorms were located along a line
extending from near Valley De Oro to 4 miles northwest of Mescalero
Park, moving east 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...
Amarillo, Canyon, Lake Tanglewood, Bushland, Valley De Oro, Washburn,
Boys Ranch, Mescalero Park, Four Way, Masterson, Lake Meredith,
Timbercreek Canyon and Pantex.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3510 10217 3518 10217 3518 10221 3560 10245
      3563 10233 3563 10216 3567 10216 3577 10170
      3539 10150 3499 10152 3489 10205
TIME...MOT...LOC 2241Z 261DEG 17KT 3548 10208 3510 10196 

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

LG

079 
WWUS54 KAMA 182254
SVSAMA

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

TXC011-065-341-359-375-381-182345-
/O.CON.KAMA.SV.W.0096.000000T0000Z-210518T2345Z/
Armstrong TX-Randall TX-Carson TX-Oldham TX-Potter TX-Moore TX-
554 PM CDT Tue May 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHWESTERN ARMSTRONG...NORTHERN RANDALL...SOUTHWESTERN
CARSON...EASTERN OLDHAM...POTTER AND SOUTHERN MOORE COUNTIES...

At 553 PM CDT, severe thunderstorms were located along a line
extending from 5 miles northeast of Valley De Oro to 3 miles north of
Mescalero Park, moving east at 15 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...
Amarillo, Canyon, Lake Tanglewood, Bushland, Valley De Oro, Washburn,
Boys Ranch, Mescalero Park, Four Way, Masterson, Lake Meredith,
Timbercreek Canyon and Pantex.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3510 10217 3518 10217 3518 10221 3554 10237
      3563 10233 3563 10216 3567 10216 3577 10170
      3539 10150 3499 10152 3489 10205
TIME...MOT...LOC 2253Z 269DEG 15KT 3548 10202 3510 10190 

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

LG

307 
WWUS54 KAMA 182305
SVSAMA

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

TXC011-065-341-359-375-381-182345-
/O.CON.KAMA.SV.W.0096.000000T0000Z-210518T2345Z/
Armstrong TX-Randall TX-Carson TX-Oldham TX-Potter TX-Moore TX-
605 PM CDT Tue May 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHWESTERN ARMSTRONG...NORTHERN RANDALL...SOUTHWESTERN
CARSON...EASTERN OLDHAM...POTTER AND SOUTHERN MOORE COUNTIES...

At 604 PM CDT, severe thunderstorms were located along a line
extending from 3 miles southwest of Masterson to 6 miles south of
Lake Tanglewood, moving east 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...
Amarillo, Canyon, Lake Tanglewood, Bushland, Valley De Oro, Washburn,
Boys Ranch, Mescalero Park, Four Way, Masterson, Lake Meredith,
Timbercreek Canyon and Pantex.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3510 10217 3518 10217 3518 10221 3549 10229
      3563 10233 3563 10216 3567 10216 3577 10170
      3539 10150 3499 10152 3489 10205
TIME...MOT...LOC 2304Z 268DEG 20KT 3560 10200 3497 10180 

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

LG

640 
WWUS54 KAMA 182318
SVSAMA

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

TXC359-182327-
/O.CAN.KAMA.SV.W.0096.000000T0000Z-210518T2345Z/
Oldham TX-
618 PM CDT Tue May 18 2021

...THE SEVERE THUNDERSTORM WARNING FOR EASTERN OLDHAM COUNTY IS
CANCELLED...

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

LAT...LON 3510 10217 3518 10217 3521 10216 3567 10216
      3577 10170 3539 10150 3499 10152 3489 10205
TIME...MOT...LOC 2317Z 269DEG 14KT 3561 10194 3498 10174 

$$

TXC011-065-341-375-381-182345-
/O.CON.KAMA.SV.W.0096.000000T0000Z-210518T2345Z/
Armstrong TX-Randall TX-Carson TX-Potter TX-Moore TX-
618 PM CDT Tue May 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHWESTERN ARMSTRONG...NORTHERN RANDALL...SOUTHWESTERN
CARSON...POTTER AND SOUTHERN MOORE COUNTIES...

At 617 PM CDT, severe thunderstorms were located along a line
extending from near Masterson to 4 miles northwest of Palo Duro
Canyon, moving east at 15 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...
Amarillo, Canyon, Lake Tanglewood, Mescalero Park, Bushland, Four
Way, Valley De Oro, Washburn, Masterson, Lake Meredith, Timbercreek
Canyon and Pantex.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3510 10217 3518 10217 3521 10216 3567 10216
      3577 10170 3539 10150 3499 10152 3489 10205
TIME...MOT...LOC 2317Z 269DEG 14KT 3561 10194 3498 10174 

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

LG

659 
WWUS54 KAMA 182326
SVSAMA

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

TXC011-065-341-375-381-182345-
/O.CON.KAMA.SV.W.0096.000000T0000Z-210518T2345Z/
Armstrong TX-Randall TX-Carson TX-Potter TX-Moore TX-
626 PM CDT Tue May 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHWESTERN ARMSTRONG...NORTHERN RANDALL...SOUTHWESTERN
CARSON...POTTER AND SOUTHERN MOORE COUNTIES...

At 625 PM CDT, severe thunderstorms were located along a line
extending from 3 miles southeast of Masterson to near Palo Duro
Canyon, moving east at 15 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...
Amarillo, Canyon, Lake Tanglewood, Mescalero Park, Bushland, Four
Way, Valley De Oro, Washburn, Masterson, Lake Meredith, Timbercreek
Canyon and Pantex.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3502 10207 3515 10206 3526 10215 3567 10216
      3577 10170 3539 10150 3499 10152 3489 10205
TIME...MOT...LOC 2325Z 269DEG 14KT 3561 10191 3498 10171 

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

LG

652 
WWUS54 KAMA 182336
SVSAMA

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

TXC011-065-341-375-381-182345-
/O.CON.KAMA.SV.W.0096.000000T0000Z-210518T2345Z/
Armstrong TX-Randall TX-Carson TX-Potter TX-Moore TX-
636 PM CDT Tue May 18 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 645 PM CDT
FOR NORTHWESTERN ARMSTRONG...NORTHEASTERN RANDALL...SOUTHWESTERN
CARSON...POTTER AND SOUTHEASTERN MOORE COUNTIES...

At 636 PM CDT, severe thunderstorms were located along a line
extending from 6 miles east of Masterson to near Palo Duro Canyon,
moving east 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...
Amarillo, Canyon, Lake Tanglewood, Mescalero Park, Washburn,
Masterson, Lake Meredith, Timbercreek Canyon and Pantex.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Torrential rainfall is occurring with these storms, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3516 10201 3527 10206 3561 10213 3577 10170
      3539 10150 3499 10152 3492 10196
TIME...MOT...LOC 2336Z 266DEG 20KT 3561 10185 3498 10165 

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

LG

890 
WWUS54 KAMA 182346
SVSAMA

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

TXC011-065-341-375-381-182355-
/O.EXP.KAMA.SV.W.0096.000000T0000Z-210518T2345Z/
Armstrong TX-Randall TX-Carson TX-Potter TX-Moore TX-
646 PM CDT Tue May 18 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN ARMSTRONG...
NORTHEASTERN RANDALL...SOUTHWESTERN CARSON...POTTER AND SOUTHEASTERN
MOORE COUNTIES HAS EXPIRED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been allowed to expire.

LAT...LON 3516 10201 3527 10206 3561 10213 3577 10170
      3539 10150 3499 10152 3492 10196
TIME...MOT...LOC 2345Z 266DEG 20KT 3561 10181 3498 10161 

$$

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, 2:53 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham	97 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, 5:26 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.