Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 60, NWS Amarillo, TX

May 16, 2021Moore County, Potter County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 16, 2021, 4:34 PM CDT for Moore County, Potter County, Texas. It was in force for 56 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 16, 2021, 4:34 PM CDT (21:34 UTC)
Expired: May 16, 2021, 5:30 PM CDT
In force: 56 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Moore County, TX, Potter County, TX

The radar

The Amarillo radar (KAMA), 46 km from the middle of the area, began a volume at 21:33 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 16, 3:43 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.6 hours before the alert went out and 47 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: 1470 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: -57 m²/s²
0-3 km storm-relative helicity: -16 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

827 
WUUS54 KAMA 162134
SVRAMA
TXC341-375-162230-
/O.NEW.KAMA.SV.W.0060.210516T2134Z-210516T2230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
434 PM CDT Sun May 16 2021

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Northern Potter County in the Panhandle of Texas...
  Southwestern Moore County in the Panhandle of Texas...

* Until 530 PM CDT.

* At 434 PM CDT, a severe thunderstorm was located 5 miles northeast
  of Valley De Oro, or 24 miles south of Dumas, moving northeast at
  10 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...
  Four Way and Masterson. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3553 10216 3554 10216 3576 10206 3556 10166
      3542 10197
TIME...MOT...LOC 2134Z 214DEG 10KT 3552 10204 

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

Rutt

3 follow-up statements

797 
WWUS54 KAMA 162148
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
448 PM CDT Sun May 16 2021

TXC341-375-162230-
/O.CON.KAMA.SV.W.0060.000000T0000Z-210516T2230Z/
Potter TX-Moore TX-
448 PM CDT Sun May 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR NORTHERN POTTER AND SOUTHWESTERN MOORE COUNTIES...

At 448 PM CDT, a severe thunderstorm was located 6 miles southwest of
Masterson, or 22 miles south of Dumas, moving northeast at 10 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...
Four Way and Masterson. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3554 10212 3576 10206 3556 10166 3543 10195
TIME...MOT...LOC 2148Z 214DEG 10KT 3555 10201 

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

Rutt

398 
WWUS54 KAMA 162210
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
510 PM CDT Sun May 16 2021

TXC341-375-162230-
/O.CON.KAMA.SV.W.0060.000000T0000Z-210516T2230Z/
Potter TX-Moore TX-
510 PM CDT Sun May 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM CDT
FOR NORTHERN POTTER AND SOUTH CENTRAL MOORE COUNTIES...

At 509 PM CDT, a severe thunderstorm was located 7 miles southeast of
Masterson, or 23 miles south of Dumas, moving east at 10 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...
Masterson.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3554 10207 3568 10191 3556 10166 3545 10191
TIME...MOT...LOC 2209Z 260DEG 10KT 3554 10190 

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

Rutt

968 
WWUS54 KAMA 162223
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
523 PM CDT Sun May 16 2021

TXC341-375-162232-
/O.EXP.KAMA.SV.W.0060.000000T0000Z-210516T2230Z/
Potter TX-Moore TX-
523 PM CDT Sun May 16 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN POTTER AND SOUTH
CENTRAL MOORE COUNTIES WILL EXPIRE AT 530 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 heavy rain
is still possible with this thunderstorm.

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

LAT...LON 3554 10207 3568 10191 3556 10166 3545 10191
TIME...MOT...LOC 2222Z 214DEG 10KT 3556 10188 

$$

Rutt

The office that day

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

Issued	Product	Office	Counties	Lasted
May 15, 7:40 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley	20 min
May 15, 9:09 PM CDT	Special Weather Statement	AMA	Sherman	36 min
May 15, 9:22 PM CDT	Severe Thunderstorm Warning	AMA	Moore, Sherman	23 min
May 15, 9:27 PM CDT	Special Weather Statement	AMA	Potter	33 min
May 15, 9:32 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham, Potter, Randall	28 min
May 15, 9:49 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hutchinson, Moore, Sherman	16 min
May 15, 9:59 PM CDT	Severe Thunderstorm Warning	AMA	Hansford	28 min
May 15, 10:14 PM CDT	Special Weather Statement	AMA	Randall	31 min
May 15, 10:36 PM CDT	Special Weather Statement	AMA	Armstrong	24 min
May 15, 11:11 PM CDT	Special Weather Statement	AMA	Potter	64 min
May 15, 11:32 PM CDT	Special Weather Statement	AMA	Ochiltree	58 min
May 15, 11:47 PM CDT	Areal Flood Advisory	AMA	Potter, Randall	3 hr
May 16, 4:25 PM CDT	Special Weather Statement	AMA	Potter	35 min
May 16, 4:37 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Potter, Randall	68 min
May 16, 4:46 PM CDT	Severe Thunderstorm Warning	AMA	Potter, Randall	59 min
May 16, 5:22 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham	53 min
May 16, 5:45 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Potter, Randall	60 min
May 16, 5:57 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Moore, Potter	63 min
May 16, 6:12 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Oldham	63 min
May 16, 6:33 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Potter, Randall	44 min
May 16, 6:41 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Randall	64 min
May 16, 6:48 PM CDT	Areal Flood Advisory	AMA	Deaf Smith, Randall	3 hr

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.