Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 147, NWS Amarillo, TX

June 12, 20215 counties in Texas; Cimarron County, Texas County, Oklahoma

NWS Amarillo, TX issued this severe thunderstorm warning at Jun 12, 2021, 11:01 PM CDT for 5 counties in Texas; Cimarron County, Texas County, Oklahoma. It was in force for 74 min. 8 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: Jun 12, 2021, 11:01 PM CDT (04:01 UTC)
Expired: Jun 13, 2021, 12:15 AM CDT
In force: 74 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 0.75 in
Wind: 70.0 mph

Counties Cimarron County, OK, Texas County, OK, Dallam County, TX, Hansford County, TX, Hartley County, TX, Moore County, TX, Sherman County, TX

The radar

The Amarillo radar (KAMA), 155 km from the middle of the area, began a volume at 04:03 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
Jun 12, 11:22 PM CDT	TSTM WND GST 67	4 Wnw Stratford, TX
Jun 12, 11:30 PM CDT	TSTM WND DMG	Griggs, OK	THREE LIMBS SNAPPED AND SHED WAS SHIFTED OFF ITS FOUNDATION AND RELOCATED.
Jun 12, 11:35 PM CDT	TSTM WND GST 63	4 Ssw Dalhart, TX	ASOS STATION KDHT DALHART (ASOS).
Jun 12, 11:43 PM CDT	TSTM WND GST 62	4 Ssw Dalhart, TX	ASOS STATION KDHT DALHART (ASOS).
Jun 12, 11:48 PM CDT	TSTM WND GST 62	4 Ssw Dalhart, TX	ASOS STATION KDHT DALHART (ASOS).
Jun 12, 11:57 PM CDT	TSTM WND GST 61	4 Ssw Dalhart, TX	ASOS STATION KDHT DALHART (ASOS).
Jun 13, 12:23 AM CDT	TSTM WND GST 75	1 Sw Cactus, TX	MEASURED THUNDERSTORM WIND GUST WITH A HANDHELD WIND METER.
Jun 13, 12:23 AM CDT	TSTM WND GST 75	1 Wsw Cactus, TX	MEASURED THUNDERSTORM WIND GUST WITH A HANDHELD WIND METER.

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
Jun 12, 9:39 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 4.0 hours before the alert went out and 156 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: 3697 J/kg
Mixed-layer CIN: -21 J/kg
Mixed-layer LCL: 1361 m above ground
0-6 km bulk shear: 34 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 190 m²/s²
Significant tornado parameter: 1.9
Supercell composite: 18.7

Open this sounding in Storm Lab

The text

As transmitted.

307 
WUUS54 KAMA 130401
SVRAMA
OKC025-139-TXC111-195-205-341-421-130515-
/O.NEW.KAMA.SV.W.0147.210613T0401Z-210613T0515Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
1101 PM CDT Sat Jun 12 2021

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Southwestern Texas County in the Panhandle of Oklahoma...
  Southern Cimarron County in the Panhandle of Oklahoma...
  West central Hansford County in the Panhandle of Texas...
  Sherman County in the Panhandle of Texas...
  Dallam County in the Panhandle of Texas...
  Northwestern Moore County in the Panhandle of Texas...
  Eastern Hartley County in the Panhandle of Texas...

* Until 1215 AM CDT.

* At 1101 PM CDT, a severe thunderstorm was located 17 miles
  northwest of Conlen, or 20 miles west of Stratford, moving
  southeast at 30 mph.

  HAZARD...70 mph wind gusts and penny size hail.

  SOURCE...Radar indicated.

  IMPACT...Expect some tree damage. Damage is likely to mobile 
           homes, roofs, and outbuildings.

* Locations impacted include...
  Dalhart, Stratford, Hartley, Cactus, Texline, Ware, Felt, Conlen,
  Griggs and Texhoma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3650 10304 3650 10300 3654 10300 3682 10203
      3627 10147 3571 10270 3628 10304
TIME...MOT...LOC 0401Z 327DEG 27KT 3643 10243 

HAIL...0.75IN
WIND...70MPH
 
$$

TLH

4 follow-up statements

251 
WWUS54 KAMA 130427
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
1127 PM CDT Sat Jun 12 2021

OKC025-139-TXC111-195-205-341-421-130515-
/O.CON.KAMA.SV.W.0147.000000T0000Z-210613T0515Z/
Texas OK-Cimarron OK-Hansford TX-Sherman TX-Dallam TX-Moore TX-
Hartley TX-
1127 PM CDT Sat Jun 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT
FOR SOUTHWESTERN TEXAS...SOUTHERN CIMARRON...WEST CENTRAL HANSFORD...
SHERMAN...DALLAM...NORTHWESTERN MOORE AND EASTERN HARTLEY COUNTIES...

At 1127 PM CDT, a severe thunderstorm was located near Conlen, or 13
miles west of Stratford, moving southeast at 30 mph.

This is a very dangerous storm.

HAZARD...80 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Flying debris will be dangerous to those caught without 
         shelter. Mobile homes will be heavily damaged. Expect 
         considerable damage to roofs, windows, and vehicles. Tree 
         damage and power outages are likely. Hail damage to 
         vehicles is expected.

Locations impacted include...
Dalhart, Stratford, Hartley, Cactus, Texline, Ware, Felt, Conlen,
Griggs and Texhoma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3650 10304 3650 10300 3654 10300 3682 10203
      3627 10147 3571 10270 3628 10304
TIME...MOT...LOC 0427Z 327DEG 27KT 3626 10230 

HAIL...1.00IN
WIND...80MPH
 
$$

TLH

419 
WWUS54 KAMA 130439
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
1139 PM CDT Sat Jun 12 2021

OKC025-139-TXC111-195-205-341-421-130515-
/O.CON.KAMA.SV.W.0147.000000T0000Z-210613T0515Z/
Texas OK-Cimarron OK-Hansford TX-Sherman TX-Dallam TX-Moore TX-
Hartley TX-
1139 PM CDT Sat Jun 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT
FOR SOUTHWESTERN TEXAS...SOUTHERN CIMARRON...WEST CENTRAL HANSFORD...
SHERMAN...DALLAM...NORTHWESTERN MOORE AND EASTERN HARTLEY COUNTIES...

At 1139 PM CDT, a severe thunderstorm was located near Conlen, or 14
miles southwest of Stratford, moving southeast at 30 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Expect some tree damage. Damage is likely to mobile homes, 
         roofs, and outbuildings. Hail damage to vehicles is 
         expected.

Locations impacted include...
Dalhart, Stratford, Hartley, Cactus, Texline, Ware, Felt, Conlen,
Griggs and Texhoma.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3650 10304 3650 10300 3654 10300 3682 10203
      3627 10147 3571 10270 3628 10304
TIME...MOT...LOC 0439Z 327DEG 27KT 3618 10224 

HAIL...1.00IN
WIND...70MPH
 
$$

TLH

952 
WWUS54 KAMA 130448
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
1148 PM CDT Sat Jun 12 2021

OKC025-130457-
/O.CAN.KAMA.SV.W.0147.000000T0000Z-210613T0515Z/
Cimarron OK-
1148 PM CDT Sat Jun 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHERN CIMARRON COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has weakened. 
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT for
the Panhandle of Oklahoma...and the Panhandle of Texas.

LAT...LON 3650 10216 3650 10203 3653 10203 3659 10180
      3627 10147 3571 10270 3628 10304
TIME...MOT...LOC 0447Z 327DEG 27KT 3613 10220 

$$

OKC139-TXC111-195-205-341-421-130515-
/O.CON.KAMA.SV.W.0147.000000T0000Z-210613T0515Z/
Texas OK-Hansford TX-Sherman TX-Dallam TX-Moore TX-Hartley TX-
1148 PM CDT Sat Jun 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT
FOR SOUTHWESTERN TEXAS...WEST CENTRAL HANSFORD...SHERMAN...DALLAM...
NORTHWESTERN MOORE AND EASTERN HARTLEY COUNTIES...

At 1147 PM CDT, a severe thunderstorm was located 7 miles south of
Conlen, or 16 miles southwest of Stratford, moving southeast at 30
mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Radar indicated.

IMPACT...Expect some tree damage. Damage is likely to mobile homes, 
         roofs, and outbuildings. Hail damage to vehicles is 
         expected.

Locations impacted include...
Dalhart, Stratford, Hartley, Cactus, Ware, Conlen and Texhoma. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3650 10216 3650 10203 3653 10203 3659 10180
      3627 10147 3571 10270 3628 10304
TIME...MOT...LOC 0447Z 327DEG 27KT 3613 10220 

HAIL...1.00IN
WIND...70MPH
 
$$

TLH

734 
WWUS54 KAMA 130501
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
1201 AM CDT Sun Jun 13 2021

OKC139-130510-
/O.CAN.KAMA.SV.W.0147.000000T0000Z-210613T0515Z/
Texas OK-
1201 AM CDT Sun Jun 13 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN TEXAS COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has weakened. 
Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT for
the Panhandle of Texas.

LAT...LON 3627 10147 3571 10270 3607 10291 3648 10168
TIME...MOT...LOC 0500Z 327DEG 27KT 3605 10213 

$$

TXC111-195-205-341-421-130515-
/O.CON.KAMA.SV.W.0147.000000T0000Z-210613T0515Z/
Hansford TX-Sherman TX-Dallam TX-Moore TX-Hartley TX-
1201 AM CDT Sun Jun 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1215 AM CDT
FOR WEST CENTRAL HANSFORD...SHERMAN...SOUTHEASTERN DALLAM...
NORTHWESTERN MOORE AND EASTERN HARTLEY COUNTIES...

At 1200 AM CDT, automated weather equipment reported a severe
thunderstorm was located 7 miles west of Cactus, or 15 miles
northwest of Dumas, moving southeast at 30 mph.

HAZARD...70 mph wind gusts and quarter size hail.

SOURCE...Automated weather equipment has measured 65 mph wind gusts 
         with these storms.

IMPACT...Expect some tree damage. Damage is likely to mobile homes, 
         roofs, and outbuildings. Hail damage to vehicles is 
         expected.

Locations impacted include...
Dalhart, Stratford, Hartley, Cactus and Conlen. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3627 10147 3571 10270 3607 10291 3648 10168
TIME...MOT...LOC 0500Z 327DEG 27KT 3605 10213 

HAIL...1.00IN
WIND...70MPH
 
$$

TLH

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 12, 10:02 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham	73 min
Jun 12, 10:28 PM CDT	Special Weather Statement	AMA	Dallam	32 min
Jun 12, 10:32 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Sherman	58 min
Jun 12, 11:07 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Hartley, Oldham	83 min
Jun 12, 11:46 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hansford, Hartley, Hutchinson, Moore, Oldham and 2 more	59 min
Jun 12, 11:51 PM CDT	Special Weather Statement	AMA	Deaf Smith	24 min
Jun 13, 12:15 AM CDT	Areal Flood Warning	AMA	Dallam, Hartley, Moore, Oldham, Potter, Sherman	2 hr
Jun 13, 12:22 AM CDT	Special Weather Statement	AMA	Randall	23 min
Jun 13, 12:28 AM CDT	Special Weather Statement	AMA	Deaf Smith	32 min
Jun 13, 12:42 AM CDT	Severe Thunderstorm Warning	AMA	Carson, Hansford, Hartley, Hutchinson, Moore, Ochiltree and 4 more	63 min
Jun 13, 1:15 AM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Gray, Hutchinson, Potter, Randall and 1 more	45 min
Jun 13, 1:28 AM CDT	Areal Flood Advisory	AMA	Armstrong, Carson, Hutchinson	2 hr
Jun 13, 1:56 AM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Donley, Gray, Hemphill, Hutchinson and 3 more	64 min
Jun 13, 2:37 AM CDT	Special Weather Statement	AMA	Sherman	23 min
Jun 13, 2:56 AM CDT	Special Weather Statement	AMA	Donley	34 min
Jun 12, 9:24 PM CDT	Special Weather Statement	AMA	Cimarron	36 min
Jun 12, 9:36 PM CDT	Severe Thunderstorm Warning	AMA	Cimarron	69 min
Jun 12, 10:45 PM CDT	Special Weather Statement	AMA	Cimarron	45 min
Jun 12, 11:53 PM CDT	Special Weather Statement	AMA	Texas	52 min
Jun 13, 2:33 AM CDT	Special Weather Statement	AMA	Beaver	27 min

Nearby

Severe Thunderstorm Warnings in Texas, 2021 Severe Thunderstorm Warnings in Oklahoma, 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.