Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 88, NWS Amarillo, TX

May 17, 20217 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 17, 2021, 7:59 PM CDT for 7 counties in Texas. It was in force for 76 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 17, 2021, 7:59 PM CDT (00:59 UTC)
Expired: May 17, 2021, 9:15 PM CDT
In force: 76 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.5 in
Wind: 60.0 mph

Counties Armstrong County, TX, Carson County, TX, Hartley County, TX, Hutchinson County, TX, Moore County, TX, Potter County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 26 km from the middle of the area, began a volume at 00:59 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 17, 8:00 PM CDT	HAIL 1.25	6 E Amarillo, TX	REPORT FROM MPING: HALF DOLLAR (1.25 IN.).
May 17, 8:39 PM CDT	TSTM WND GST 60	Goodnight, TX	60 MPH WIND GUST. RECORDED ON WEST TEXAS MESONET.
May 17, 9:03 PM CDT	TSTM WND GST 68	Stinnett, TX	WEST TEXAS MESONET OBSERVATION.

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

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
May 17, 2:39 PM CDT	Severe Thunderstorm Watch	SPC	8 hr
May 17, 3:04 PM CDT	Tornado Watch	SPC	8 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.0 hours before the alert went out and 26 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: 1013 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1616 m above ground
0-6 km bulk shear: 31 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 139 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.3

Open this sounding in Storm Lab

The text

As transmitted.

429 
WUUS54 KAMA 180059
SVRAMA
TXC011-065-205-233-341-375-381-180215-
/O.NEW.KAMA.SV.W.0088.210518T0059Z-210518T0215Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
759 PM CDT Mon May 17 2021

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Armstrong County in the Panhandle of Texas...
  Randall County in the Panhandle of Texas...
  Carson County in the Panhandle of Texas...
  Southwestern Hutchinson County in the Panhandle of Texas...
  Potter County in the Panhandle of Texas...
  Moore County in the Panhandle of Texas...
  Eastern Hartley County in the Panhandle of Texas...

* Until 915 PM CDT.

* At 758 PM CDT, severe thunderstorms were located along a line
  extending from 5 miles northeast of Channing to 6 miles north of
  Amarillo to 6 miles west of Wayside, moving northeast at 50 mph.

  HAZARD...Ping pong ball size 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...
  Amarillo, Dumas, Canyon, Borger, Panhandle, Claude, Cactus, Fritch,
  Sunray, Stinnett, White Deer, Lake Tanglewood, Groom, Skellytown,
  Sanford, Bushland, Wayside, Goodnight, Pringle and Four Way.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 1100 PM CDT for the Panhandle
of Texas.

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

&&

LAT...LON 3519 10216 3562 10216 3563 10225 3605 10246
      3605 10155 3563 10109 3475 10110 3475 10178
TIME...MOT...LOC 0058Z 235DEG 42KT 3576 10228 3529 10183 3478 10167 

HAIL...1.50IN
WIND...60MPH
 
$$

Guerrero

2 follow-up statements

716 
WWUS54 KAMA 180143
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
843 PM CDT Mon May 17 2021

TXC381-180152-
/O.CAN.KAMA.SV.W.0088.000000T0000Z-210518T0215Z/
Randall TX-
843 PM CDT Mon May 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR RANDALL COUNTY IS CANCELLED...

The storms which prompted the warning have weakened. Therefore, the 
warning has been cancelled.

A Tornado Watch remains in effect until 1100 PM CDT for the Panhandle
of Texas.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
the Panhandle of Texas.

LAT...LON 3534 10165 3558 10196 3570 10211 3605 10229
      3605 10155 3563 10109 3475 10110 3475 10158
      3506 10156
TIME...MOT...LOC 0142Z 239DEG 20KT 3602 10193 3552 10141 3491 10128 

$$

TXC011-065-205-233-341-375-180215-
/O.CON.KAMA.SV.W.0088.000000T0000Z-210518T0215Z/
Armstrong TX-Carson TX-Hutchinson TX-Potter TX-Moore TX-Hartley TX-
843 PM CDT Mon May 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR ARMSTRONG...CARSON...SOUTHWESTERN HUTCHINSON...NORTHEASTERN
POTTER...MOORE AND NORTHEASTERN HARTLEY COUNTIES...

At 842 PM CDT, severe thunderstorms were located along a line
extending from 4 miles east of Cactus to 10 miles south of Borger to
9 miles southwest of Goodnight, 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...
Dumas, Borger, Panhandle, Claude, Cactus, Fritch, Sunray, Stinnett,
White Deer, Groom, Skellytown, Sanford, Wayside, Washburn, Goodnight,
Pringle, Four Way, Masterson, Lake Meredith and Pantex.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A Tornado Watch remains in effect until 1100 PM CDT for the Panhandle
of Texas.

LAT...LON 3534 10165 3558 10196 3570 10211 3605 10229
      3605 10155 3563 10109 3475 10110 3475 10158
      3506 10156
TIME...MOT...LOC 0142Z 239DEG 20KT 3602 10193 3552 10141 3491 10128 

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

Beat

450 
WWUS54 KAMA 180159
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
859 PM CDT Mon May 17 2021

TXC205-375-180208-
/O.CAN.KAMA.SV.W.0088.000000T0000Z-210518T0215Z/
Potter TX-Hartley TX-
859 PM CDT Mon May 17 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN POTTER AND
NORTHEASTERN HARTLEY COUNTIES IS CANCELLED...

The storms which prompted the warning have weakened. Therefore, the 
warning has been cancelled.

A Tornado Watch remains in effect until 1100 PM CDT for the Panhandle
of Texas.

A Severe Thunderstorm Watch remains in effect until 1100 PM CDT for
the Panhandle of Texas.

LAT...LON 3524 10127 3544 10145 3557 10162 3562 10162
      3562 10168 3584 10193 3605 10208 3605 10155
      3563 10109 3475 10110 3475 10144
TIME...MOT...LOC 0158Z 236DEG 36KT 3598 10181 3559 10128 3493 10114 

$$

TXC011-065-233-341-180215-
/O.CON.KAMA.SV.W.0088.000000T0000Z-210518T0215Z/
Armstrong TX-Carson TX-Hutchinson TX-Moore TX-
859 PM CDT Mon May 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR EASTERN ARMSTRONG...CARSON...SOUTHWESTERN HUTCHINSON AND EASTERN
MOORE COUNTIES...

At 858 PM CDT, severe thunderstorms were located along a line
extending from near Sunray to 6 miles west of Skellytown to 7 miles
south of Goodnight, moving northeast at 40 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...
Dumas, Borger, Cactus, Fritch, Sunray, Stinnett, White Deer, Groom,
Skellytown, Sanford, Goodnight, Pringle and Lake Meredith.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

A Tornado Watch remains in effect until 1100 PM CDT for the Panhandle
of Texas.

LAT...LON 3524 10127 3544 10145 3557 10162 3562 10162
      3562 10168 3584 10193 3605 10208 3605 10155
      3563 10109 3475 10110 3475 10144
TIME...MOT...LOC 0158Z 236DEG 36KT 3598 10181 3559 10128 3493 10114 

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

Beat

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, 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, 5:19 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.