Alert archive / Texas / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 76, NWS Amarillo, TX

May 16, 2021Donley County, Texas

NWS Amarillo, TX issued this severe thunderstorm warning at May 16, 2021, 8:13 PM CDT for Donley County, Texas. It was in force for 62 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
May 16, 2021, 8:13 PM CDT (01:13 UTC)
Expired
May 16, 2021, 9:15 PM CDT
In force
62 min
Issued by
NWS Amarillo, TX
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

County Donley County, TX

The radar

The Amarillo radar (KAMA), 79 km from the middle of the area, began a volume at 01:13 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.

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 00:00Z, 1.2 hours before the alert went out and 78 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 00:00Z on 2021-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 449 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 00:00Z on 2021-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 98 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
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.

630 
WUUS54 KAMA 170113
SVRAMA
TXC129-170215-
/O.NEW.KAMA.SV.W.0076.210517T0113Z-210517T0215Z/

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

The National Weather Service in Amarillo has issued a

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

* Until 915 PM CDT.

* At 813 PM CDT, a severe thunderstorm was located 6 miles southwest
  of Clarendon, moving northeast at 5 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. Hail may accumulate 
           on roadways causing hazardous travel.

* Locations impacted include...
  Clarendon, Howardwick, Lelia Lake and Greenbelt Lake. 

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 3488 10109 3499 10109 3518 10074 3518 10073
      3475 10065 3475 10106
TIME...MOT...LOC 0113Z 238DEG 5KT 3489 10099 

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

Rutt
2 follow-up statements
644 
WWUS54 KAMA 170205
SVSAMA

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

TXC129-170215-
/O.CON.KAMA.SV.W.0076.000000T0000Z-210517T0215Z/
Donley TX-
905 PM CDT Sun May 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM CDT
FOR SOUTHWESTERN DONLEY COUNTY...

At 905 PM CDT, a severe thunderstorm was located 8 miles south of
Clarendon, moving south at 10 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.

Locations impacted include...
Clarendon and Lelia Lake. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

LAT...LON 3490 10109 3501 10070 3475 10065 3475 10106
      3488 10109
TIME...MOT...LOC 0205Z 343DEG 9KT 3482 10093 

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

Rutt
674 
WWUS54 KAMA 170214
SVSAMA

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

TXC129-170224-
/O.EXP.KAMA.SV.W.0076.000000T0000Z-210517T0215Z/
Donley TX-
914 PM CDT Sun May 16 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHWESTERN DONLEY COUNTY
WILL EXPIRE AT 915 PM CDT...
                
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.

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

LAT...LON 3490 10109 3501 10070 3475 10065 3475 10106
      3488 10109
TIME...MOT...LOC 0214Z 238DEG 5KT 3483 10092 

$$

Rutt

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, 8:47 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
May 17, 6:54 PM CDTSevere Thunderstorm WarningAMAArmstrong, Randall66 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.