Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 280, NWS Amarillo, TX

October 12, 20216 counties in Texas

NWS Amarillo, TX issued this severe thunderstorm warning at Oct 12, 2021, 10:23 PM CDT for 6 counties in Texas. It was in force for 82 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: Oct 12, 2021, 10:23 PM CDT (03:23 UTC)
Expired: Oct 12, 2021, 11:45 PM CDT
In force: 82 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Hansford County, TX, Hemphill County, TX, Hutchinson County, TX, Lipscomb County, TX, Ochiltree County, TX, Roberts County, TX

The radar

The Amarillo radar (KAMA), 136 km from the middle of the area, began a volume at 03:22 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
Oct 12, 5:34 PM CDT	Tornado Watch	SPC	5 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 3.4 hours before the alert went out and 136 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.

376 
WUUS54 KAMA 130323
SVRAMA
TXC195-211-233-295-357-393-130445-
/O.NEW.KAMA.SV.W.0280.211013T0323Z-211013T0445Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
1023 PM CDT Tue Oct 12 2021

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Lipscomb County in the Panhandle of Texas...
  Northeastern Hutchinson County in the Panhandle of Texas...
  Southeastern Hansford County in the Panhandle of Texas...
  Roberts County in the Panhandle of Texas...
  Hemphill County in the Panhandle of Texas...
  Southern Ochiltree County in the Panhandle of Texas...

* Until 1145 PM CDT.

* At 1023 PM CDT, a severe thunderstorm was located 19 miles
  southeast of Spearman, moving northeast at 60 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...
  Lipscomb, Canadian, Follett, Higgins, Wolf Creek Park, Glazier and
  Lake Marvin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3574 10114 3611 10118 3650 10015 3650 10000
      3578 10000
TIME...MOT...LOC 0323Z 239DEG 52KT 3594 10104 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Ward

2 follow-up statements

460 
WWUS54 KAMA 130342
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
1042 PM CDT Tue Oct 12 2021

TXC195-211-233-295-357-393-130445-
/O.CON.KAMA.SV.W.0280.000000T0000Z-211013T0445Z/
Lipscomb TX-Hutchinson TX-Hansford TX-Roberts TX-Hemphill TX-
Ochiltree TX-
1042 PM CDT Tue Oct 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR LIPSCOMB...NORTHEASTERN HUTCHINSON...SOUTHEASTERN HANSFORD...
ROBERTS...HEMPHILL AND SOUTHERN OCHILTREE COUNTIES...

At 1042 PM CDT, a severe thunderstorm was located 10 miles southwest
of Wolf Creek Park, or 21 miles south of Perryton, moving northeast
at 60 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...
Lipscomb, Canadian, Follett, Higgins, Wolf Creek Park, Glazier and
Lake Marvin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3574 10114 3611 10118 3650 10015 3650 10000
      3578 10000
TIME...MOT...LOC 0342Z 239DEG 52KT 3608 10075 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Ward

212 
WWUS54 KAMA 130424
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
1124 PM CDT Tue Oct 12 2021

TXC195-233-130434-
/O.CAN.KAMA.SV.W.0280.000000T0000Z-211013T0445Z/
Hutchinson TX-Hansford TX-
1124 PM CDT Tue Oct 12 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN HUTCHINSON AND
SOUTHEASTERN HANSFORD COUNTIES IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

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

LAT...LON 3574 10109 3580 10109 3630 10067 3650 10015
      3650 10000 3578 10000
TIME...MOT...LOC 0424Z 231DEG 70KT 3626 10036 

$$

TXC211-295-357-393-130445-
/O.CON.KAMA.SV.W.0280.000000T0000Z-211013T0445Z/
Lipscomb TX-Roberts TX-Hemphill TX-Ochiltree TX-
1124 PM CDT Tue Oct 12 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1145 PM CDT
FOR LIPSCOMB...CENTRAL ROBERTS...HEMPHILL AND SOUTHEASTERN OCHILTREE
COUNTIES...

At 1124 PM CDT, a severe thunderstorm was located 5 miles west of
Lipscomb, moving northeast at 80 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...
Lipscomb, Canadian, Follett, Higgins, Wolf Creek Park, Glazier and
Lake Marvin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.

&&

LAT...LON 3574 10109 3580 10109 3630 10067 3650 10015
      3650 10000 3578 10000
TIME...MOT...LOC 0424Z 231DEG 70KT 3626 10036 

TORNADO...POSSIBLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.75IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Ward

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, 10:30 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, 12:01 AM CDT	Severe Thunderstorm Warning	AMA	Gray, Hemphill, Roberts, Wheeler	59 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.