Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 69, NWS Amarillo, TX

May 16, 2021Deaf Smith County, Oldham County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 16, 2021, 7:01 PM CDT for Deaf Smith County, Oldham County, Texas. It was in force for 14 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 16, 2021, 7:01 PM CDT (00:01 UTC)
Expired: May 16, 2021, 7:15 PM CDT
In force: 14 min
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Deaf Smith County, TX, Oldham County, TX

The radar

The Amarillo radar (KAMA), 65 km from the middle of the area, began a volume at 00:03 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 16, 7:02 PM CDT	HAIL 1	9 S Vega, TX	REPORT FROM MPING: QUARTER (1.00 IN.).

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
May 16, 3:43 PM CDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 0.0 hours before the alert went out and 66 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: 449 J/kg
Mixed-layer CIN: -105 J/kg
Mixed-layer LCL: 2191 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 98 m²/s²
0-3 km storm-relative helicity: 250 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.5

Open this sounding in Storm Lab

The text

As transmitted.

303 
WUUS54 KAMA 170001
SVRAMA
TXC117-359-170100-
/O.NEW.KAMA.SV.W.0069.210517T0001Z-210517T0100Z/

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

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  South central Oldham County in the Panhandle of Texas...
  Northeastern Deaf Smith County in the Panhandle of Texas...

* Until 800 PM CDT.

* At 701 PM CDT, a severe thunderstorm was located 9 miles south of
  Vega, moving east at 15 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.

* This severe thunderstorm will remain over mainly rural areas of
  south central Oldham and northeastern Deaf Smith Counties.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3505 10244 3520 10250 3523 10237 3504 10229
TIME...MOT...LOC 0001Z 291DEG 14KT 3511 10239 

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

Rutt

1 follow-up statement

294 
WWUS54 KAMA 170015
SVSAMA

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

TXC117-359-170025-
/O.CAN.KAMA.SV.W.0069.000000T0000Z-210517T0100Z/
Oldham TX-Deaf Smith TX-
715 PM CDT Sun May 16 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL OLDHAM AND
NORTHEASTERN DEAF SMITH COUNTIES IS CANCELLED...
        
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning has
been cancelled.

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

LAT...LON 3505 10244 3520 10250 3523 10237 3504 10229
TIME...MOT...LOC 0012Z 291DEG 14KT 3509 10233 

$$

Rutt

The office that day

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

Issued	Product	Office	Counties	Lasted
May 16, 7:06 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Potter	54 min
May 16, 7:15 PM CDT	Flash Flood Warning	AMA	Randall	5 hr
May 16, 7:20 PM CDT	Severe Thunderstorm Warning	AMA	Donley	55 min
May 16, 7:35 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Randall	55 min
May 16, 7:44 PM CDT	Severe Thunderstorm Warning	AMA	Randall	61 min
May 16, 7:46 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Potter	59 min
May 16, 7:58 PM CDT	Severe Thunderstorm Warning	AMA	Dallam, Hartley, Sherman	62 min
May 16, 8:13 PM CDT	Severe Thunderstorm Warning	AMA	Donley	62 min
May 16, 8:47 PM CDT	Severe Thunderstorm Warning	AMA	Carson, Oldham, Potter	43 min
May 16, 9:08 PM CDT	Areal Flood Advisory	AMA	Donley	3 hr
May 16, 9:19 PM CDT	Severe Thunderstorm Warning	AMA	Sherman	41 min
May 16, 11:37 PM CDT	Special Weather Statement	AMA	Oldham	23 min
May 16, 11:40 PM CDT	Areal Flood Advisory	AMA	Potter, Randall	3 hr
May 17, 12:06 AM CDT	Special Weather Statement	AMA	Potter	24 min
May 17, 12:12 AM CDT	Special Weather Statement	AMA	Oldham	33 min
May 17, 12:16 AM CDT	Areal Flood Advisory	AMA	Randall	3 hr
May 17, 12:35 AM CDT	Special Weather Statement	AMA	Randall	25 min
May 17, 12:45 AM CDT	Special Weather Statement	AMA	Potter	30 min
May 17, 12:46 AM CDT	Special Weather Statement	AMA	Potter	29 min
May 17, 1:02 AM CDT	Special Weather Statement	AMA	Randall	28 min
May 17, 2:58 PM CDT	Flash Flood Watch	AMA	Armstrong, Carson, Collingsworth, Deaf Smith, Donley, Gray and 4 more	7 hr
May 17, 4:47 PM CDT	Special Weather Statement	AMA	Oldham	43 min
May 17, 5:16 PM CDT	Severe Thunderstorm Warning	AMA	Ochiltree, Roberts	59 min
May 17, 5:48 PM CDT	Special Weather Statement	AMA	Hartley, Oldham	57 min
May 17, 5:50 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Oldham	55 min
May 17, 6:14 PM CDT	Severe Thunderstorm Warning	AMA	Roberts	41 min
May 17, 6:28 PM CDT	Severe Thunderstorm Warning	AMA	Deaf Smith, Randall	62 min
May 17, 6:33 PM CDT	Tornado Warning	AMA	Hartley, Oldham	19 min
May 17, 6:42 PM CDT	Severe Thunderstorm Warning	AMA	Hartley, Oldham	93 min
May 17, 6:54 PM CDT	Severe Thunderstorm Warning	AMA	Armstrong, Randall	66 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.