Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 44, NWS Amarillo, TX

May 14, 20214 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 14, 2021, 5:31 PM CDT for 4 counties in Texas. It was in force for 59 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: May 14, 2021, 5:31 PM CDT (22:31 UTC)
Expired: May 14, 2021, 6:30 PM CDT
In force: 59 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 70.0 mph

Counties Hartley County, TX, Moore County, TX, Oldham County, TX, Potter County, TX

The radar

The Amarillo radar (KAMA), 64 km from the middle of the area, began a volume at 22:31 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.

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 14, 4:30 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 10.5 hours before the alert went out and 64 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: 51 J/kg
Mixed-layer CIN: -519 J/kg
Mixed-layer LCL: 807 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 364 m²/s²
0-3 km storm-relative helicity: 385 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.4

Open this sounding in Storm Lab

The text

As transmitted.

444 
WUUS54 KAMA 142231
SVRAMA
TXC205-341-359-375-142330-
/O.NEW.KAMA.SV.W.0044.210514T2231Z-210514T2330Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
531 PM CDT Fri May 14 2021

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Northeastern Oldham County in the Panhandle of Texas...
  Northwestern Potter County in the Panhandle of Texas...
  Western Moore County in the Panhandle of Texas...
  Southeastern Hartley County in the Panhandle of Texas...

* Until 630 PM CDT.

* At 530 PM CDT, a severe thunderstorm was located 9 miles east of
  Channing, or 18 miles southwest of Dumas, moving northeast at 15
  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...
  Dumas, Four Way and Masterson. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3555 10224 3571 10234 3602 10203 3561 10182
TIME...MOT...LOC 2230Z 247DEG 15KT 3566 10217 

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

Bieda

3 follow-up statements

322 
WWUS54 KAMA 142244
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
544 PM CDT Fri May 14 2021

TXC359-142254-
/O.CAN.KAMA.SV.W.0044.000000T0000Z-210514T2330Z/
Oldham TX-
544 PM CDT Fri May 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN OLDHAM COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

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

LAT...LON 3572 10228 3598 10201 3561 10182 3558 10216
      3563 10216 3563 10224
TIME...MOT...LOC 2244Z 241DEG 15KT 3570 10211 

$$

TXC205-341-375-142330-
/O.CON.KAMA.SV.W.0044.000000T0000Z-210514T2330Z/
Potter TX-Moore TX-Hartley TX-
544 PM CDT Fri May 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR NORTHWESTERN POTTER...WESTERN MOORE AND SOUTHEASTERN HARTLEY
COUNTIES...

At 544 PM CDT, a severe thunderstorm was located 8 miles west of Four
Way, or 14 miles southwest of Dumas, moving northeast at 15 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...
Dumas, Four Way and Masterson. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3572 10228 3598 10201 3561 10182 3558 10216
      3563 10216 3563 10224
TIME...MOT...LOC 2244Z 241DEG 15KT 3570 10211 

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

Bieda

229 
WWUS54 KAMA 142308
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
608 PM CDT Fri May 14 2021

TXC205-142318-
/O.CAN.KAMA.SV.W.0044.000000T0000Z-210514T2330Z/
Hartley TX-
608 PM CDT Fri May 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HARTLEY COUNTY IS
CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

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

LAT...LON 3577 10216 3587 10196 3561 10182 3558 10216
TIME...MOT...LOC 2308Z 247DEG 15KT 3574 10199 

$$

TXC341-375-142330-
/O.CON.KAMA.SV.W.0044.000000T0000Z-210514T2330Z/
Potter TX-Moore TX-
608 PM CDT Fri May 14 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 630 PM CDT
FOR NORTHWESTERN POTTER AND SOUTHWESTERN MOORE COUNTIES...

At 608 PM CDT, a severe thunderstorm was located near Four Way, or 9
miles south of Dumas, moving northeast at 15 mph.

HAZARD...60 mph wind gusts and penny size hail.

SOURCE...Radar indicated.

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

Locations impacted include...
Dumas, Four Way and Masterson. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3577 10216 3587 10196 3561 10182 3558 10216
TIME...MOT...LOC 2308Z 247DEG 15KT 3574 10199 

HAIL...0.75IN
WIND...60MPH
 
$$

Bieda

801 
WWUS54 KAMA 142324
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
624 PM CDT Fri May 14 2021

TXC341-375-142333-
/O.EXP.KAMA.SV.W.0044.000000T0000Z-210514T2330Z/
Potter TX-Moore TX-
624 PM CDT Fri May 14 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN POTTER AND
SOUTHWESTERN MOORE COUNTIES WILL EXPIRE AT 630 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However hail up 
to penny size is still possible with this thunderstorm.

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

LAT...LON 3577 10216 3587 10196 3561 10182 3558 10216
TIME...MOT...LOC 2323Z 247DEG 15KT 3576 10194 

$$

Bieda

The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 9:03 AM CDT	Special Weather Statement	AMA	Roberts	27 min
May 14, 11:03 AM CDT	Special Weather Statement	AMA	Wheeler	27 min
May 14, 4:49 PM CDT	Special Weather Statement	AMA	Deaf Smith	41 min
May 14, 4:51 PM CDT	Special Weather Statement	AMA	Dallam	24 min
May 14, 5:11 PM CDT	Special Weather Statement	AMA	Dallam	34 min
May 14, 5:13 PM CDT	Special Weather Statement	AMA	Moore	32 min
May 14, 5:20 PM CDT	Special Weather Statement	AMA	Oldham	40 min
May 14, 5:27 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham	63 min
May 14, 5:33 PM CDT	Special Weather Statement	AMA	Deaf Smith	42 min
May 14, 5:41 PM CDT	Special Weather Statement	AMA	Sherman	34 min
May 14, 5:48 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Sherman	57 min
May 14, 5:55 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	65 min
May 14, 5:59 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley, Sherman	61 min
May 14, 6:26 PM CDT	Special Weather Statement	AMA	Moore	34 min
May 14, 6:34 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley, Moore, Potter, Sherman	56 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.