Alert archive / Texas / Tornado Warnings in 2021

Tornado Warning 26, NWS Amarillo, TX

May 30, 2021Oldham County, Texas

NWS Amarillo, TX issued this tornado warning at May 30, 2021, 1:40 AM CDT for Oldham County, Texas. It was in force for 16 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 30, 2021, 1:40 AM CDT (06:40 UTC)
Expired: May 30, 2021, 1:56 AM CDT
In force: 16 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Tornado: Radar indicated
Hail: 1.0 in

County Oldham County, TX

The radar

The Amarillo radar (KAMA), 98 km from the middle of the area, began a volume at 06:43 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 29, 7:28 PM CDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 6.7 hours before the alert went out and 99 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: 70 J/kg
Mixed-layer CIN: -344 J/kg
Mixed-layer LCL: 758 m above ground
0-6 km bulk shear: 35 kt
0-1 km storm-relative helicity: 84 m²/s²
0-3 km storm-relative helicity: 194 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

The text

As transmitted.

543 
WFUS54 KAMA 300640
TORAMA
TXC359-300715-
/O.NEW.KAMA.TO.W.0026.210530T0640Z-210530T0715Z/

BULLETIN - EAS ACTIVATION REQUESTED
Tornado Warning
National Weather Service Amarillo TX
140 AM CDT Sun May 30 2021

The National Weather Service in Amarillo has issued a

* Tornado Warning for...
  Central Oldham County in the Panhandle of Texas...

* Until 215 AM CDT.

* At 139 AM CDT, severe thunderstorms capable of producing both
  tornadoes and extensive straight line wind damage were located 14
  miles southeast of Romero, or 17 miles east of Nara Visa, moving
  east at 25 mph.

  HAZARD...Tornado and quarter size hail.

  SOURCE...Radar indicated rotation.

  IMPACT...Flying debris will be dangerous to those caught without 
           shelter. Mobile homes will be damaged or destroyed. 
           Damage to roofs, windows, and vehicles will occur.  Tree 
           damage is likely.

* This tornadic thunderstorm will remain over mainly rural areas of
  central Oldham County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

TAKE COVER NOW! Move to a basement or an interior room on the lowest
floor of a sturdy building. Avoid windows. If you are outdoors, in a
mobile home, or in a vehicle, move to the closest substantial shelter
and protect yourself from flying debris.

&&

LAT...LON 3562 10287 3563 10279 3562 10268 3558 10242
      3527 10251 3536 10297
TIME...MOT...LOC 0639Z 286DEG 23KT 3554 10280 

TORNADO...RADAR INDICATED
HAIL...1.00IN

$$

TLH

1 follow-up statement

969 
WWUS54 KAMA 300656
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
156 AM CDT Sun May 30 2021

TXC359-300706-
/O.CAN.KAMA.TO.W.0026.000000T0000Z-210530T0715Z/
Oldham TX-
156 AM CDT Sun May 30 2021

...THE TORNADO WARNING FOR CENTRAL OLDHAM COUNTY IS CANCELLED...
    
The tornado threat has diminished and the Tornado Warning has been
cancelled. However, large hail and damaging winds remain likely and a
Severe Thunderstorm Warning remains in effect for the area.

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

LAT...LON 3562 10287 3563 10279 3562 10268 3558 10242
      3527 10251 3536 10297
TIME...MOT...LOC 0654Z 286DEG 23KT 3551 10267 

$$

TLH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 30, 12:04 AM CDT	Special Weather Statement	AMA	Dallam, Hartley	56 min
May 30, 1:08 AM CDT	Severe Thunderstorm Warning	AMA	Hartley, Oldham	64 min
May 30, 2:30 AM CDT	Special Weather Statement	AMA	Hartley	30 min
May 30, 2:51 AM CDT	Special Weather Statement	AMA	Oldham	24 min
May 30, 2:54 AM CDT	Special Weather Statement	AMA	Oldham	66 min
May 30, 3:43 AM CDT	Special Weather Statement	AMA	Moore, Sherman	62 min
May 30, 2:27 PM CDT	Flood Watch	AMA	Armstrong, Carson, Collingsworth, Dallam, Deaf Smith, Donley and 14 more	17 hr
May 30, 3:56 PM CDT	Special Weather Statement	AMA	Sherman	34 min
May 30, 5:14 PM CDT	Severe Thunderstorm Warning	AMA	Dallam	61 min
May 30, 6:08 PM CDT	Tornado Warning	AMA	Dallam, Sherman	52 min
May 30, 6:46 PM CDT	Areal Flood Advisory	AMA	Dallam	4 hr
May 30, 6:54 PM CDT	Tornado Warning	AMA	Dallam, Sherman	51 min

Nearby

Tornado Warnings in Texas, 2021 Every tornado warning in 2021 Tornadoes 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.