Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 84, NWS Amarillo, TX

May 17, 2021Armstrong County, Randall County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 17, 2021, 6:54 PM CDT for Armstrong County, Randall County, Texas. It was in force for 66 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 17, 2021, 6:54 PM CDT (23:54 UTC)
Expired
May 17, 2021, 8:00 PM CDT
In force
66 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Armstrong County, TX, Randall County, TX

The radar

The Amarillo radar (KAMA), 29 km from the middle of the area, began a volume at 23:57 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 17, 7:25 PM CDTHAIL 2.75Palo Duro Canyon, TXHAIL DAMAGED SOME VEHICLES AND CAMPERS MAINLY ON THE SOUTH SIDE OF THE PARK. SOME HIKERS REPORTEDLY HAD SOME MINOR BUMPS AND BRUISES FROM THE HAIL.
May 17, 7:29 PM CDTHAIL 1.251 Ese Palo Duro Canyon, TXREPORT FROM MPING: HALF DOLLAR (1.25 IN.).
May 17, 7:47 PM CDTHAIL 26 E Lake Tanglewood, TX

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 17, 2:39 PM CDTSevere Thunderstorm WatchSPC8 hr
May 17, 3:04 PM CDTTornado WatchSPC8 hr

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 12:00Z, 11.9 hours before the alert went out and 28 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 2021-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Amarillo Airport, TX at 12:00Z on 2021-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -81 square meters per square second.193958Sfc1 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
1 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1522 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-81 m²/s²
0-3 km storm-relative helicity
24 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

205 
WUUS54 KAMA 172354
SVRAMA
TXC011-381-180100-
/O.NEW.KAMA.SV.W.0084.210517T2354Z-210518T0100Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Amarillo TX
654 PM CDT Mon May 17 2021

The National Weather Service in Amarillo has issued a

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

* Until 800 PM CDT.

* At 654 PM CDT, a severe thunderstorm was located near Vigo Park, or
  14 miles northeast of Tulia, moving north at 35 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Claude, Lake Tanglewood, Wayside, Palo Duro Canyon and Timbercreek
  Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

LAT...LON 3514 10185 3513 10135 3475 10134 3475 10177
TIME...MOT...LOC 2354Z 175DEG 30KT 3465 10156 

HAIL...1.25IN
WIND...60MPH
 
$$

Guerrero
3 follow-up statements
100 
WWUS54 KAMA 180001
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
701 PM CDT Mon May 17 2021

TXC011-381-180100-
/O.CON.KAMA.SV.W.0084.000000T0000Z-210518T0100Z/
Armstrong TX-Randall TX-
701 PM CDT Mon May 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR WESTERN ARMSTRONG AND EASTERN RANDALL COUNTIES...

At 701 PM CDT, a severe thunderstorm was located 5 miles northwest of
Vigo Park, or 16 miles northeast of Tulia, moving north at 35 mph.

HAZARD...Golf 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.

Locations impacted include...
Claude, Lake Tanglewood, Wayside, Palo Duro Canyon and Timbercreek
Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

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

LAT...LON 3514 10185 3513 10135 3475 10134 3475 10177
TIME...MOT...LOC 0001Z 175DEG 30KT 3471 10157 

HAIL...1.75IN
WIND...60MPH
 
$$

Guerrero
379 
WWUS54 KAMA 180017
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
717 PM CDT Mon May 17 2021

TXC011-381-180100-
/O.CON.KAMA.SV.W.0084.000000T0000Z-210518T0100Z/
Armstrong TX-Randall TX-
717 PM CDT Mon May 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR WESTERN ARMSTRONG AND EASTERN RANDALL COUNTIES...

At 717 PM CDT, a severe thunderstorm was located 4 miles northwest of
Wayside, or 21 miles southeast of Canyon, moving north at 35 mph.

HAZARD...Tennis 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.

Locations impacted include...
Claude, Lake Tanglewood, Wayside, Palo Duro Canyon and Timbercreek
Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

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

LAT...LON 3514 10185 3513 10135 3475 10134 3475 10177
TIME...MOT...LOC 0017Z 175DEG 30KT 3485 10158 

HAIL...2.50IN
WIND...60MPH
 
$$

Guerrero
914 
WWUS54 KAMA 180030
SVSAMA

Severe Weather Statement
National Weather Service Amarillo TX
730 PM CDT Mon May 17 2021

TXC011-381-180100-
/O.CON.KAMA.SV.W.0084.000000T0000Z-210518T0100Z/
Armstrong TX-Randall TX-
730 PM CDT Mon May 17 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 800 PM CDT
FOR WESTERN ARMSTRONG AND EASTERN RANDALL COUNTIES...

At 730 PM CDT, a severe thunderstorm was located 4 miles east of Palo
Duro Canyon, or 16 miles southwest of Claude, moving north at 35 mph.

This is a very dangerous storm.

HAZARD...Baseball size hail and 60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...People and animals outdoors will be severely injured. 
         Expect shattered windows, extensive damage to roofs, 
         siding, and vehicles.

Locations impacted include...
Claude, Lake Tanglewood, Wayside, Palo Duro Canyon and Timbercreek
Canyon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

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

LAT...LON 3514 10185 3513 10135 3475 10134 3475 10177
TIME...MOT...LOC 0030Z 175DEG 30KT 3496 10159 

HAIL...2.75IN
WIND...60MPH
 
$$

Guerrero

The office that day

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

IssuedProductOfficeCountiesLasted
May 16, 7:01 PM CDTSevere Thunderstorm WarningAMADeaf Smith, Oldham14 min
May 16, 7:06 PM CDTSevere Thunderstorm WarningAMACarson, Potter54 min
May 16, 7:15 PM CDTFlash Flood WarningAMARandall5 hr
May 16, 7:20 PM CDTSevere Thunderstorm WarningAMADonley55 min
May 16, 7:35 PM CDTSevere Thunderstorm WarningAMAArmstrong, Randall55 min
May 16, 7:44 PM CDTSevere Thunderstorm WarningAMARandall61 min
May 16, 7:46 PM CDTSevere Thunderstorm WarningAMACarson, Potter59 min
May 16, 7:58 PM CDTSevere Thunderstorm WarningAMADallam, Hartley, Sherman62 min
May 16, 8:13 PM CDTSevere Thunderstorm WarningAMADonley62 min
May 16, 8:47 PM CDTSevere Thunderstorm WarningAMACarson, Oldham, Potter43 min
May 16, 9:08 PM CDTAreal Flood AdvisoryAMADonley3 hr
May 16, 9:19 PM CDTSevere Thunderstorm WarningAMASherman41 min
May 16, 11:37 PM CDTSpecial Weather StatementAMAOldham23 min
May 16, 11:40 PM CDTAreal Flood AdvisoryAMAPotter, Randall3 hr
May 17, 12:06 AM CDTSpecial Weather StatementAMAPotter24 min
May 17, 12:12 AM CDTSpecial Weather StatementAMAOldham33 min
May 17, 12:16 AM CDTAreal Flood AdvisoryAMARandall3 hr
May 17, 12:35 AM CDTSpecial Weather StatementAMARandall25 min
May 17, 12:45 AM CDTSpecial Weather StatementAMAPotter30 min
May 17, 12:46 AM CDTSpecial Weather StatementAMAPotter29 min
May 17, 1:02 AM CDTSpecial Weather StatementAMARandall28 min
May 17, 2:58 PM CDTFlash Flood WatchAMAArmstrong, Carson, Collingsworth, Deaf Smith, Donley, Gray and 4 more7 hr
May 17, 4:47 PM CDTSpecial Weather StatementAMAOldham43 min
May 17, 5:16 PM CDTSevere Thunderstorm WarningAMAOchiltree, Roberts59 min
May 17, 5:48 PM CDTSpecial Weather StatementAMAHartley, Oldham57 min
May 17, 5:50 PM CDTSevere Thunderstorm WarningAMAHartley, Oldham55 min
May 17, 6:14 PM CDTSevere Thunderstorm WarningAMARoberts41 min
May 17, 6:28 PM CDTSevere Thunderstorm WarningAMADeaf Smith, Randall62 min
May 17, 6:33 PM CDTTornado WarningAMAHartley, Oldham19 min
May 17, 6:42 PM CDTSevere Thunderstorm WarningAMAHartley, Oldham93 min

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.