Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 68, NWS Amarillo, TX

May 16, 2021Armstrong County, Randall County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 16, 2021, 6:41 PM CDT for Armstrong County, Randall County, Texas. It was in force for 64 min. 12 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, 6:41 PM CDT (23:41 UTC)
Expired
May 16, 2021, 7:45 PM CDT
In force
64 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon
Hail
1.75 in
Wind
70.0 mph

Counties Armstrong County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 28 km from the middle of the area, began a volume at 23:45 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, 6:42 PM CDTHAIL 0.75Canyon, TXREPORT FROM MPING: DIME (0.75 IN.).
May 16, 6:42 PM CDTHAIL 15 Nw Canyon, TXREPORT FROM MPING: QUARTER (1.00 IN.).
May 16, 6:44 PM CDTHAIL 1.75Canyon, TX
May 16, 6:45 PM CDTTSTM WND DMGCanyon, TXDOWNED POWERLINES REPORTED AT 23RD ST AND 10TH AVE IN CANYON.
May 16, 6:45 PM CDTTSTM WND GST 70Canyon, TXARCING POWERLINES CAUSING POWER FLASHES.
May 16, 6:56 PM CDTHAIL 23 E Canyon, TX
May 16, 6:57 PM CDTHAIL 16 Wnw Timbercreek Canyo, TXREPORT FROM MPING: QUARTER (1.00 IN.).
May 16, 7:10 PM CDTHAIL 0.754 W Canyon, TXREPORT FROM MPING: DIME (0.75 IN.).
May 16, 7:27 PM CDTHAIL 0.755 Ese Canyon, TXREPORT FROM MPING: DIME (0.75 IN.).
May 16, 7:30 PM CDTHAIL 15 Se Canyon, TXREPORT FROM MPING: QUARTER (1.00 IN.).
May 16, 7:38 PM CDTHAIL 1.255 Ese Canyon, TXREPORT FROM MPING: HALF DOLLAR (1.25 IN.).
May 16, 7:44 PM CDTHAIL 1.53 Ne Umbarger, TXREPORT FROM MPING: PING PONG BALL (1.50 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, 11.7 hours before the alert went out and 29 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.

838 
WUUS54 KAMA 162341
SVRAMA
TXC011-381-170045-
/O.NEW.KAMA.SV.W.0068.210516T2341Z-210517T0045Z/

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

The National Weather Service in Amarillo has issued a

* Severe Thunderstorm Warning for...
  Northwestern Armstrong County in the Panhandle of Texas...
  Randall County in the Panhandle of Texas...

* Until 745 PM CDT.

* At 641 PM CDT, a severe thunderstorm was located 4 miles northeast
  of Canyon, and is nearly stationary.

  HAZARD...Golf ball size hail and 70 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect some tree damage. Damage is likely to mobile 
           homes, roofs, and outbuildings. People and animals 
           outdoors will be injured. Expect hail damage to roofs, 
           siding, windows, and vehicles. Hail may accumulate on 
           roadways causing hazardous travel.

* Locations impacted include...
  Amarillo, Canyon, Lake Tanglewood, Mescalero Park, Umbarger, Palo
  Duro Canyon and Timbercreek Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3504 10217 3506 10217 3519 10170 3518 10159
      3487 10140 3482 10206
TIME...MOT...LOC 2341Z 246DEG 2KT 3501 10185 

HAIL...1.75IN
WIND...70MPH
 
$$

Rutt
2 follow-up statements
274 
WWUS54 KAMA 162345
SVSAMA

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

TXC011-381-170045-
/O.CON.KAMA.SV.W.0068.000000T0000Z-210517T0045Z/
Armstrong TX-Randall TX-
645 PM CDT Sun May 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHWESTERN ARMSTRONG AND RANDALL COUNTIES...

At 645 PM CDT, a severe thunderstorm was located 4 miles northeast 
of Canyon, and is nearly stationary. At 644 PM CDT a trained spotter 
reports ping pong size hail and estimated 70 mph wind gusts in 
Canyon.

HAZARD...Golf ball size hail and 70 mph wind gusts.

SOURCE...Trained weather spotters.

IMPACT...Expect some tree damage. Damage is likely to mobile homes, 
         roofs, and outbuildings. People and animals outdoors will 
         be injured. Expect hail damage to roofs, siding, windows, 
         and vehicles. Hail may accumulate on roadways causing 
         hazardous travel.

Locations impacted include...
Amarillo, Canyon, Lake Tanglewood, Mescalero Park, Umbarger, Palo
Duro Canyon and Timbercreek Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3504 10217 3506 10217 3519 10170 3518 10159
      3487 10140 3482 10206
TIME...MOT...LOC 2345Z 246DEG 2KT 3501 10185 

HAIL...1.75IN
WIND...70MPH
 
$$

Rutt
337 
WWUS54 KAMA 170010
SVSAMA

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

TXC011-381-170045-
/O.CON.KAMA.SV.W.0068.000000T0000Z-210517T0045Z/
Armstrong TX-Randall TX-
710 PM CDT Sun May 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 745 PM CDT
FOR NORTHWESTERN ARMSTRONG AND CENTRAL RANDALL COUNTIES...

At 710 PM CDT, a severe thunderstorm was located 6 miles southwest of
Palo Duro Canyon, or 9 miles southeast of Canyon, moving southeast at
20 mph.

HAZARD...70 mph wind gusts and ping pong ball size hail.

SOURCE...Radar indicated.

IMPACT...Expect some tree damage. Damage is likely to mobile homes, 
         roofs, and outbuildings. People and animals outdoors will 
         be injured. Expect hail damage to roofs, siding, windows, 
         and vehicles.

Locations impacted include...
Amarillo, Canyon, Lake Tanglewood, Mescalero Park, Palo Duro Canyon
and Timbercreek Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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 3507 10211 3519 10170 3518 10159 3487 10140
      3482 10204
TIME...MOT...LOC 0010Z 298DEG 17KT 3491 10177 

HAIL...1.50IN
WIND...70MPH
 
$$

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, 5:22 PM CDTSevere Thunderstorm WarningAMADeaf Smith, Oldham53 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, 6:48 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.