Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 63, NWS Amarillo, TX

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

NWS Amarillo, TX issued this severe thunderstorm warning at May 16, 2021, 5:22 PM CDT for Deaf Smith County, Oldham County, Texas. It was in force for 53 min. 3 reports 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, 5:22 PM CDT (22:22 UTC)
Expired
May 16, 2021, 6:15 PM CDT
In force
53 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), 76 km from the middle of the area, began a volume at 22:23 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

TimeReportWhereRemark
May 16, 5:46 PM CDTHAIL 1.510 Ne Simms, TXREPORT RECEIVED VIA SPOTTER NETWORK.
May 16, 5:57 PM CDTHAIL 19 Sw Vega, TXNICKEL TO QUARTER SIZE HAIL REPORTED.
May 16, 6:06 PM CDTHAIL 0.758 Ne Simms, TXREPORT FROM MPING: DIME (0.75 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.

IssuedProductOfficeLasted
May 16, 3:43 PM CDTSevere Thunderstorm WatchSPC7 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 10.4 hours before the alert went out and 76 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-pSkew-T log-p diagram, Amarillo Airport, TX at 12:00Z on 2021-05-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 12:00Z on 2021-05-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -57 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
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
1470 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-57 m²/s²
0-3 km storm-relative helicity
-16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

702 
WUUS54 KAMA 162222
SVRAMA
TXC117-359-162315-
/O.NEW.KAMA.SV.W.0063.210516T2222Z-210516T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
522 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 615 PM CDT.

* At 521 PM CDT, a severe thunderstorm was located 8 miles northeast
  of Simms, or 11 miles southwest of Vega, and is nearly stationary.

  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 3502 10258 3515 10268 3530 10249 3509 10232
TIME...MOT...LOC 2221Z 241DEG 4KT 3513 10257 

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

Rutt
1 follow-up statement
961 
WWUS54 KAMA 162248
SVSAMA

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

TXC117-359-162315-
/O.CON.KAMA.SV.W.0063.000000T0000Z-210516T2315Z/
Oldham TX-Deaf Smith TX-
548 PM CDT Sun May 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM CDT
FOR SOUTH CENTRAL OLDHAM AND NORTHEASTERN DEAF SMITH COUNTIES...

At 547 PM CDT, a severe thunderstorm was located 9 miles southwest of
Vega, and is nearly stationary.

HAZARD...Ping pong ball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Minor damage to roofs, siding, and trees is possible. 
         People and animals outdoors will be injured. Expect hail 
         damage to roofs, siding, windows, and vehicles.

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 3503 10255 3516 10266 3530 10249 3509 10232
TIME...MOT...LOC 2247Z 241DEG 4KT 3514 10254 

HAIL...1.50IN
WIND...60MPH
 
$$

Rutt

The office that day

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

IssuedProductOfficeCountiesLasted
May 15, 7:40 PM CDTSevere Thunderstorm WarningAMADallam, Hartley20 min
May 15, 9:09 PM CDTSpecial Weather StatementAMASherman36 min
May 15, 9:22 PM CDTSevere Thunderstorm WarningAMAMoore, Sherman23 min
May 15, 9:27 PM CDTSpecial Weather StatementAMAPotter33 min
May 15, 9:32 PM CDTSevere Thunderstorm WarningAMADeaf Smith, Oldham, Potter, Randall28 min
May 15, 9:49 PM CDTSevere Thunderstorm WarningAMAHansford, Hutchinson, Moore, Sherman16 min
May 15, 9:59 PM CDTSevere Thunderstorm WarningAMAHansford28 min
May 15, 10:14 PM CDTSpecial Weather StatementAMARandall31 min
May 15, 10:36 PM CDTSpecial Weather StatementAMAArmstrong24 min
May 15, 11:11 PM CDTSpecial Weather StatementAMAPotter64 min
May 15, 11:32 PM CDTSpecial Weather StatementAMAOchiltree58 min
May 15, 11:47 PM CDTAreal Flood AdvisoryAMAPotter, Randall3 hr
May 16, 4:25 PM CDTSpecial Weather StatementAMAPotter35 min
May 16, 4:34 PM CDTSevere Thunderstorm WarningAMAMoore, Potter56 min
May 16, 4:37 PM CDTSevere Thunderstorm WarningAMAArmstrong, Carson, Potter, Randall68 min
May 16, 4:46 PM CDTSevere Thunderstorm WarningAMAPotter, Randall59 min
May 16, 5:45 PM CDTSevere Thunderstorm WarningAMAArmstrong, Carson, Potter, Randall60 min
May 16, 5:57 PM CDTSevere Thunderstorm WarningAMACarson, Moore, Potter63 min
May 16, 6:12 PM CDTSevere Thunderstorm WarningAMADeaf Smith, Oldham63 min
May 16, 6:33 PM CDTSevere Thunderstorm WarningAMACarson, Potter, Randall44 min
May 16, 6:41 PM CDTSevere Thunderstorm WarningAMAArmstrong, Randall64 min
May 16, 6:48 PM CDTAreal Flood AdvisoryAMADeaf Smith, Randall3 hr

Nearby

Severe Thunderstorm Warnings in Texas, 2021Every 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.