Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 283, NWS Amarillo, TX

October 13, 20214 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Oct 13, 2021, 12:01 AM CDT for 4 counties in Texas. It was in force for 59 min. 1 report 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: Oct 13, 2021, 12:01 AM CDT (05:01 UTC)
Expired: Oct 13, 2021, 1:00 AM CDT
In force: 59 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Gray County, TX, Hemphill County, TX, Roberts County, TX, Wheeler County, TX

The radar

The Amarillo radar (KAMA), 109 km from the middle of the area, began a volume at 05:05 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
Oct 13, 12:03 AM CDT	HAIL 1	Lefors, TX

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
Oct 12, 11:05 PM CDT	Tornado Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 5.0 hours before the alert went out and 109 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: 165 J/kg
Mixed-layer CIN: -69 J/kg
Mixed-layer LCL: 2910 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 141 m²/s²
0-3 km storm-relative helicity: 172 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.7

Open this sounding in Storm Lab

The text

As transmitted.

099 
WUUS54 KAMA 130501
SVRAMA
TXC179-211-393-483-130600-
/O.NEW.KAMA.SV.W.0283.211013T0501Z-211013T0600Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
1201 AM CDT Wed Oct 13 2021

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Northern Wheeler County in the Panhandle of Texas...
  Gray County in the Panhandle of Texas...
  Southeastern Roberts County in the Panhandle of Texas...
  Southern Hemphill County in the Panhandle of Texas...

* Until 100 AM CDT.

* At 1200 AM CDT, a severe thunderstorm was located 4 miles west of
  Lefors, or 10 miles southeast of Pampa, moving northeast at 60 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...
  Pampa, Miami, Briscoe, Wheeler, Lefors, New Mobeetie, Lora,
  Allison, Codman, Kellerville and Mobeetie.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 AM CDT for the Panhandle
of Texas.

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

A Tornado Watch remains in effect until 600 AM CDT for the Panhandle
of Texas.

&&

LAT...LON 3526 10090 3556 10107 3582 10051 3587 10000
      3546 10000
TIME...MOT...LOC 0500Z 240DEG 53KT 3542 10088 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Rutt

2 follow-up statements

711 
WWUS54 KAMA 130527
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
1227 AM CDT Wed Oct 13 2021

TXC179-211-393-483-130600-
/O.CON.KAMA.SV.W.0283.000000T0000Z-211013T0600Z/
Wheeler TX-Gray TX-Roberts TX-Hemphill TX-
1227 AM CDT Wed Oct 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM CDT
FOR NORTHERN WHEELER...NORTHEASTERN GRAY...SOUTHEASTERN ROBERTS AND
SOUTHERN HEMPHILL COUNTIES...

At 1227 AM CDT, a severe thunderstorm was located 6 miles north of
New Mobeetie, or 11 miles southeast of Miami, moving northeast at 60
mph.

HAZARD...70 mph wind gusts and half dollar 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...
Miami, Briscoe, Wheeler, New Mobeetie, Lora, Allison, Kellerville and
Mobeetie.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 AM CDT for the Panhandle
of Texas.

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

&&

LAT...LON 3535 10051 3574 10068 3582 10051 3587 10000
      3546 10000
TIME...MOT...LOC 0527Z 240DEG 53KT 3562 10045 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.25 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Rutt

470 
WWUS54 KAMA 130544
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
1244 AM CDT Wed Oct 13 2021

TXC179-211-393-483-130600-
/O.CON.KAMA.SV.W.0283.000000T0000Z-211013T0600Z/
Wheeler TX-Gray TX-Roberts TX-Hemphill TX-
1244 AM CDT Wed Oct 13 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 100 AM CDT
FOR NORTHERN WHEELER...NORTHEASTERN GRAY...SOUTHEASTERN ROBERTS AND
SOUTHERN HEMPHILL COUNTIES...

At 1243 AM CDT, a severe thunderstorm was located 10 miles south of
Lake Marvin, or 15 miles southeast of Canadian, moving northeast at
60 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...
Miami, Briscoe, Allison, New Mobeetie, Lora and Mobeetie. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Tornado Watch remains in effect until 600 AM CDT for the Panhandle
of Texas.

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

&&

LAT...LON 3574 10068 3582 10051 3587 10000 3551 10000
      3541 10054
TIME...MOT...LOC 0543Z 240DEG 53KT 3574 10019 

THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH

$$

Rutt

The office that day

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

Issued	Product	Office	Counties	Lasted
Oct 12, 7:06 PM CDT	Special Weather Statement	AMA	Dallam, Hartley, Sherman	24 min
Oct 12, 7:08 PM CDT	Special Weather Statement	AMA	Hartley	37 min
Oct 12, 7:19 PM CDT	Special Weather Statement	AMA	Deaf Smith, Oldham	41 min
Oct 12, 7:33 PM CDT	Special Weather Statement	AMA	Dallam	42 min
Oct 12, 8:52 PM CDT	Severe Thunderstorm Warning Considerable damage threat	AMA	Hansford	53 min
Oct 12, 9:34 PM CDT	Severe Thunderstorm Warning Considerable damage threat	AMA	Hansford, Ochiltree	56 min
Oct 12, 10:02 PM CDT	Special Weather Statement	AMA	Carson	28 min
Oct 12, 10:23 PM CDT	Severe Thunderstorm Warning	AMA	Hansford, Hemphill, Hutchinson, Lipscomb, Ochiltree, Roberts	82 min
Oct 12, 10:30 PM CDT	Special Weather Statement	AMA	Carson, Hutchinson, Roberts	30 min
Oct 12, 10:52 PM CDT	Special Weather Statement	AMA	Carson	23 min
Oct 12, 11:00 PM CDT	Severe Thunderstorm Warning	AMA	Lipscomb, Ochiltree	60 min
Oct 12, 11:01 PM CDT	Special Weather Statement	AMA	Carson	29 min
Oct 12, 11:42 PM CDT	Special Weather Statement	AMA	Gray	33 min
Oct 12, 11:59 PM CDT	Severe Thunderstorm Warning Considerable damage threat	AMA	Hemphill, Lipscomb, Ochiltree, Roberts	61 min
Oct 13, 12:50 AM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Donley, Gray, Hemphill, Wheeler	55 min
Oct 13, 12:57 AM CDT	Tornado Warning	AMA	Collingsworth, Donley, Gray, Wheeler	33 min
Oct 13, 2:06 AM CDT	Special Weather Statement	AMA	Collingsworth	24 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.