Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 36, NWS Amarillo, TX

May 7, 2021Oldham County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 7, 2021, 4:52 PM CDT for Oldham County, Texas. It was in force for 68 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: May 7, 2021, 4:52 PM CDT (21:52 UTC)
Expired: May 7, 2021, 6:00 PM CDT
In force: 68 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Oldham County, TX

The radar

The Amarillo radar (KAMA), 93 km from the middle of the area, began a volume at 21:53 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
May 7, 5:05 PM CDT	TSTM WND GST 58	11 Ssw Romero, TX

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 9.9 hours before the alert went out and 94 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: 1870 m above ground
0-6 km bulk shear: 37 kt
0-1 km storm-relative helicity: 341 m²/s²
0-3 km storm-relative helicity: 598 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

455 
WUUS54 KAMA 072152
SVRAMA
TXC359-072300-
/O.NEW.KAMA.SV.W.0036.210507T2152Z-210507T2300Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
452 PM CDT Fri May 7 2021

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Oldham County in the Panhandle of Texas...

* Until 600 PM CDT.

* At 452 PM CDT, a severe thunderstorm was located 15 miles northwest
  of Adrian, or 18 miles southeast of Nara Visa, moving east at 35
  mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Vega and Adrian. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3562 10304 3561 10239 3519 10236 3518 10241
      3523 10304
TIME...MOT...LOC 2152Z 259DEG 29KT 3539 10290 

HAIL...<.75IN
WIND...60MPH
 
$$

Guerrero

The office that day

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

Issued	Product	Office	Counties	Lasted
May 7, 2:42 PM CDT	Fire Weather Watch	AMA	Dallam, Deaf Smith, Hartley, Oldham	13 hr
May 7, 3:33 PM CDT	Special Weather Statement	AMA	Moore	57 min
May 7, 4:33 PM CDT	Special Weather Statement	AMA	Oldham	57 min
May 7, 4:38 PM CDT	Special Weather Statement	AMA	Dallam	67 min
May 7, 4:47 PM CDT	Special Weather Statement	AMA	Potter	58 min
May 7, 5:00 PM CDT	Special Weather Statement	AMA	Lipscomb	60 min
May 7, 5:03 PM CDT	Special Weather Statement	AMA	Sherman	57 min
May 7, 5:06 PM CDT	Special Weather Statement	AMA	Randall	54 min
May 7, 5:13 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Moore, Sherman	62 min
May 7, 5:20 PM CDT	Special Weather Statement	AMA	Deaf Smith	55 min
May 7, 5:38 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Deaf Smith, Hutchinson, Moore, Oldham and 2 more	82 min
May 7, 6:01 PM CDT	Special Weather Statement	AMA	Hansford, Hutchinson, Ochiltree	59 min
May 7, 6:19 PM CDT	Special Weather Statement	AMA	Roberts	56 min
May 7, 6:27 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Gray, Hansford, Hutchinson, Ochiltree, Roberts	63 min
May 7, 6:45 PM CDT	Severe Thunderstorm Warning	AMA	Hemphill, Lipscomb, Ochiltree, Roberts	60 min
May 7, 6:50 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Carson, Donley, Gray, Randall	55 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.