Tornadoes · United States · Texas · 2019

EF0 tornado, Palo Duro Canyon State Park to Canyon, Texas, May 23, 2019

From Palo Duro Canyon State Park to Canyon, this EF0 tornado ran 0.6 miles across Randall County on May 23, 2019, touching down at 5:01 PM CDT and reaching 50 yards wide. It killed nobody.

The rating scale

Tracks are drawn in the color of the rating. The Enhanced Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. EF065 to 85 mphthis tornado

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. EF186 to 110 mph

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. EF2111 to 135 mph

    Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

  4. EF3136 to 165 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. EF4166 to 200 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. EF5over 200 mph

    Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

  7. Unrated

    The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

The record

Rating
EF0
Date
May 23, 2019
Touchdown
5:01 PM CDT (22:01 UTC)
Lifted
5:04 PM CDT (22:04 UTC)
On the ground
3 minutes
Path length
0.6 miles (0.9 km)
Path width
50 yards (46 m)
Deaths
0
Injuries
0
County
Randall County
Touchdown point
34.950, -101.783
Lift-off point
34.951, -101.772
Record number
1905231601-01

What the Weather Service recorded

A vigorous upper level low pressure system developed across southern Nevada. Significant wind shear and instability developed as moisture was drawn north into the Panhandles setting the stage for a very long duration and higher end severe episode. Initially, elevated supercell storms developed in the NW Texas Panhandles on the cold side of a nearly stationary frontal boundary and moved northeast into the central Oklahoma Panhandle as the first of multiple disturbances moved across the area. Hail up to golf ball size and wind damage was reported with these storms. ||During the afternoon hours, upper level disturbances, daytime heating and the very pronounced frontal boundary stretching from near Amarillo northeast into Beaver County, Oklahoma became the main catalyst for surface based supercells, which produced very large hail up to baseball size and several tornadoes. Two very large and long tracked tornadoes produced damage across the northeast Panhandles. Both were rated EF-2s based on the damage, but they remained in very rural areas throughout their life-cycle. A total of eight tornadoes occurred during this event, however three of these were landspouts that developed along an outflow produced by storms early in the event. With the loss of daytime heating, supercells congealed into a line which produced gusty winds and hail across the eastern Texas Panhandle before finally moving east and exiting the region in the early morning hours on May 24th.

Local deputy called in landspout.

Landspout reported.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

No tornado warning for this county appears in the archive as in force at the moment the tornado touched down.

The county was under a tornado watch, issued at 20:12 UTC and running to 03:00 UTC.

Issued (UTC)ExpiredProductOffice
20:12 UTC03:00 UTCTornado WatchAMA
20:20 UTC17:51 UTCFlash Flood WatchAMA
20:49 UTC21:30 UTCSevere Thunderstorm WarningAMA
21:26 UTC22:04 UTCSevere Thunderstorm WarningAMA
21:40 UTC22:30 UTCSevere Thunderstorm WarningAMA
22:22 UTC01:15 UTCFlood AdvisoryAMA
22:28 UTC22:43 UTCSevere Thunderstorm WarningAMA
22:47 UTC23:45 UTCSevere Thunderstorm WarningAMA
23:44 UTC00:45 UTCSevere Thunderstorm WarningAMA
03:36 UTC04:30 UTCSevere Thunderstorm WarningAMA

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The forecast that day

The Storm Prediction Center had this point in a Enhanced Risk, with a 0.05 chance of a tornado within 25 miles. The outlook in force was issued at 19:45 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

The air that afternoon

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

Amarillo Airport, TX (KAMA), 12:00Z

10.0 hours before the tornado, 32 km from the path. May 23, 2019.

Skew-T log-pSkew-T log-p diagram, Amarillo Airport, TX at 12:00Z on 2019-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 1941 joules per kilogram, CIN -107, lifted condensation level 815 meters above ground. Wind barbs in knots down the right edge.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. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Amarillo Airport, TX at 12:00Z on 2019-05-23The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 129 square meters per square second, 0 to 6 km bulk shear 51 knots.1939587897Sfc1 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. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
1941 J/kg
Mixed-layer CIN
-107 J/kg
Surface CAPE
2803 J/kg
Mixed-layer LCL
815 m above ground
0-6 km bulk shear
51 kt
0-1 km bulk shear
24 kt
0-1 km storm-relative helicity
129 m²/s²
0-3 km storm-relative helicity
107 m²/s²
Significant tornado parameter
0.9
Supercell composite
6.3
0-3 km lapse rate
5.6 K/km

Open this sounding in Storm Lab

The surface observations

Amarillo - Rick Husband Intl (AMA), 31 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
20:05 UTC 13 kt1010.8
20:10 UTC 11 kt1011.2
20:15 UTC330° 13 kt1011.2
20:20 UTC 14 kt1010.8
20:25 UTC 14 kt1010.8
20:30 UTC 14 kt1010.8
20:35 UTC330° 11 kt1010.8
20:40 UTC330° 10 kt1010.8
20:45 UTC330° 11 kt1011.2
20:50 UTC350° 11 kt1010.8
20:53 UTC7159340° 11 kt1010.5
20:55 UTC320° 11 kt1010.2
21:00 UTC330° 7 kt1010.5
21:05 UTC340° 9 kt1010.5
21:10 UTC 13 kt1010.2
21:15 UTC 11 kt1010.2
21:20 UTC330° 10 kt1010.2
21:25 UTC330° 11 kt1009.8
21:30 UTC 11 kt1009.8
21:35 UTC340° 11 kt171009.8
21:40 UTC 19 kt1009.1
21:45 UTC 13 kt1009.5
21:46 UTC6657340° 13 kt231009.1VCTS
21:50 UTC340° 11 kt1009.1
21:53 UTC6557340° 15 kt221009.1VCTS
21:55 UTC330° 16 kt1008.8
22:00 UTC 11 kt1008.1
22:03 UTC6457290° 15 kt1009.8TS
22:05 UTC 22 kt1010.8
22:10 UTC330° 24 kt1009.8-RA
22:15 UTC 17 kt1009.8-RA
22:20 UTC 19 kt1009.8-RA
22:25 UTC5754320° 23 kt291010.2-TSRA BR
22:27 UTC5654310° 21 kt291010.2+TSRA BR
22:30 UTC 22 kt1010.2+RA FG
22:35 UTC 16 kt211010.5-RA FG
22:40 UTC 15 kt201011.2+RA BR
22:45 UTC330° 17 kt1010.2-RA BR
22:50 UTC340° 15 kt1009.8-RA BR
22:53 UTC5654340° 12 kt1010.2-TSRA BR
22:55 UTC360° 9 kt1010.5-RA BR
23:00 UTC320° 11 kt1010.8+RA BR
23:05 UTC5654330° 13 kt1010.5VCTS RA BR
23:10 UTC300° 11 kt1011.2-RA BR
23:11 UTC5654310° 11 kt1011.2-RA BR
23:15 UTC 14 kt1010.5-RA BR
23:19 UTC5654320° 12 kt1011.2TS
23:20 UTC320° 11 kt1011.2
23:25 UTC330° 15 kt1010.8
23:30 UTC330° 13 kt1011.2
23:33 UTC5553310° 12 kt1011.2VCTS BR
23:35 UTC 11 kt1011.2-RA BR
23:40 UTC 14 kt1010.8-RA BR
23:45 UTC 13 kt1011.2BR
23:50 UTC330° 9 kt1010.5-RA BR
23:51 UTC53.653.6340° 9 kt1010.8-RA TS BR
23:53 UTC5453330° 9 kt1011.5-TSRA BR
23:55 UTC340° 8 kt1011.2-RA BR
00:00 UTC360° 5 kt1011.5RA BR

From the Iowa Environmental Mesonet's archive of airport observations.

The radar

The Amarillo radar (KAMA), 32 km away, was scanning. The volume nearest the touchdown began at 22:00 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
22:15 UTCHAIL 12 Nnw BushlandRandall, TX
22:29 UTCHAIL 1.75BushlandPotter, TXLATE REPORT OF PING PONG TO GOLF BALL SIZE HAIL.
22:34 UTCHAIL 0.886 Ne AmarilloPotter, TX
23:37 UTCHAIL 16 Wnw Timbercreek CanyoRandall, TXMPING REPORT.
23:37 UTCHAIL 16 Wnw Timbercreek CanyoRandall, TXQUARTER SIZE HAIL REPORT VIA MPING.
23:45 UTCHAIL 13 Ene UmbargerRandall, TX
23:50 UTCHAIL 1.756 Nnw CanyonRandall, TX
23:58 UTCHAIL 16 Nw Timbercreek CanyonRandall, TXMPING REPORT
23:58 UTCHAIL 16 Nw Timbercreek CanyonRandall, TX
00:00 UTCHAIL 18 Ese BushlandRandall, TX
01:00 UTCNON-TSTM WND GST 582 Ene TuliaSwisher, TXMEASURED BY THE TULIA WEST TEXAS MESONET

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2019 tornado in TexasEvery tornado in Texas since 1950Warnings in force in Texas nowThe forecast where you are

The other tornadoes of May 23, 2019

18 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 231:10 AM CDTEF1Piatt, IL1.3200
May 231:49 AM CDTEF1Laclede, MO11.1440$155,000
May 232:06 AM CDTEF1Vermilion, IL1.6200
May 238:15 AM CDTEF0Clay, IL0.720
May 233:27 PM EDTEF1Howard, MD5.51501
May 235:15 PM EDTEF1Grant, IN0.150
May 235:13 PM CDTEF0Armstrong, TX0.750
May 235:15 PM CDTEF0Randall, TX0.350
May 235:28 PM CDTUnratedTerry, TX0.110
May 236:14 PM CDTEF1Roberts, TX9.150
May 236:59 PM CDTEF2Roberts, TX17.5900
May 237:07 PM CDTEF0Roberts, TX0.020
May 239:14 PM EDTEF0Cambria, PA1.6300$10,000
May 238:26 PM CDTEF3Lipscomb, TX to OK15.71,500$170,000
May 238:43 PM CDTEF0Lipscomb, TX4.575
May 239:32 PM CDTUnratedHarper, OK0.550
May 239:43 PM CDTUnratedHarper, OK0.575
May 2310:42 PM CDTEF1Harper, OK2.0150$20,000

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.