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.

Hail in HUTCHINSON, TEXAS
From 23-MAY-19 16:47:00 to 23-MAY-19 16:47:00 (CST-6)
Location: BORGER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RANDALL, TEXAS
From 23-MAY-19 17:50:00 to 23-MAY-19 17:50:00 (CST-6)
Location: CANYON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RANDALL, TEXAS
From 23-MAY-19 18:00:00 to 23-MAY-19 18:00:00 (CST-6)
Location: AMARILLO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ROBERTS, TEXAS
From 23-MAY-19 17:45:00 to 23-MAY-19 17:45:00 (CST-6)
Location: CODMAN
Magnitude: 2.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Delayed report.

Tornado in OCHILTREE, TEXAS
From 23-MAY-19 18:04:00 to 23-MAY-19 18:19:00 (CST-6)
Location: FARNSWORTH
Tornado F-scale: EF2
Reported by: NWS Storm Survey

The tornado touched down in northern Roberts County around 659 pm CDT, crossed the Roberts/Ochiltree county line around 704 pm CDT and the Ochiltree/Lipscomb county line around 719 pm CDT before dissipating through a rope out process by 733 pm CDT. Damage from the tornado consisted mostly of damage to trees, power lines and
oil/natural gas field equipment and sheds. There was also two manufactured homes being transported via truck the were blown off Highway 83. The tornado was noted to be larger and possibly stronger in inaccessible open county to the southwest of
the location where it was measured to be around 1/2 mile wide and rated an EF2 by the survey team.

Tornado in ROBERTS, TEXAS
From 23-MAY-19 17:59:00 to 23-MAY-19 18:04:00 (CST-6)
Location: LORA
Tornado F-scale: EF2
Reported by: NWS Storm Survey

The tornado touched down in northern Roberts County around 659 pm CDT, crossed the Roberts/Ochiltree county line around 704 pm CDT and the Ochiltree/Lipscomb county line around 719 pm CDT before dissipating through a rope out process by 733 pm CDT. Damage from the tornado consisted mostly of damage to trees, power lines and
oil/natural gas field equipment and sheds. There was also two manufactured homes being transported via truck the were blown off Highway 83. The tornado was noted to be larger and possibly stronger in inaccessible open county to the southwest of
the location where it was measured to be around 1/2 mile wide and rated an EF2 by the survey team.

Tornado in RANDALL, TEXAS
From 23-MAY-19 16:15:00 to 23-MAY-19 16:17:00 (CST-6)
Location: CANYON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Landspout reported.

Hail in OCHILTREE, TEXAS
From 23-MAY-19 17:51:00 to 23-MAY-19 17:51:00 (CST-6)
Location: PERRYTON MUNI ARPT
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ROBERTS, TEXAS
From 23-MAY-19 18:50:00 to 23-MAY-19 18:50:00 (CST-6)
Location: CODMAN
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in ROBERTS, TEXAS
From 23-MAY-19 21:44:00 to 23-MAY-19 21:44:00 (CST-6)
Location: CODMAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in ROBERTS, TEXAS
From 23-MAY-19 17:56:00 to 23-MAY-19 17:56:00 (CST-6)
Location: CODMAN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in RANDALL, TEXAS
From 23-MAY-19 17:58:00 to 23-MAY-19 17:58:00 (CST-6)
Location: TIMBERCREEK CANYON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Report from MPing.

Thunderstorm Wind in GRAY, TEXAS
From 23-MAY-19 21:55:00 to 23-MAY-19 21:55:00 (CST-6)
Location: PAMPA LEFORS ARPT
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

Hail in HEMPHILL, TEXAS
From 23-MAY-19 22:30:00 to 23-MAY-19 22:30:00 (CST-6)
Location: GLAZIER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in CARSON, TEXAS
From 23-MAY-19 15:07:00 to 23-MAY-19 15:07:00 (CST-6)
Location: MC BRIDE
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in RANDALL, TEXAS
From 23-MAY-19 17:45:00 to 23-MAY-19 17:45:00 (CST-6)
Location: UMBARGER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in ROBERTS, TEXAS
From 23-MAY-19 18:03:00 to 23-MAY-19 18:03:00 (CST-6)
Location: CODMAN
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HUTCHINSON, TEXAS
From 23-MAY-19 15:41:00 to 23-MAY-19 15:41:00 (CST-6)
Location: BORGER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in RANDALL, TEXAS
From 23-MAY-19 16:15:00 to 23-MAY-19 16:15:00 (CST-6)
Location: AMARILLO
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Tornado in RANDALL, TEXAS
From 23-MAY-19 16:01:00 to 23-MAY-19 16:04:00 (CST-6)
Location: PALO DURO CANYON STATE PARK
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Local deputy called in landspout.

Hail in DALLAM, TEXAS
From 23-MAY-19 07:11:00 to 23-MAY-19 07:11:00 (CST-6)
Location: WARE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Quarter size hail and half an inch of rain in 20 minutes.

Tornado in ROBERTS, TEXAS
From 23-MAY-19 18:07:00 to 23-MAY-19 18:08:00 (CST-6)
Location: CODMAN
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Weak tornado observed on live chaser feed. No damage occurred.

Tornado in ARMSTRONG, TEXAS
From 23-MAY-19 16:13:00 to 23-MAY-19 16:16:00 (CST-6)
Location: WASHBURN
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Chaser reported landspout with corresponding video.

Hail in MOORE, TEXAS
From 23-MAY-19 11:09:00 to 23-MAY-19 11:09:00 (CST-6)
Location: FOUR WAY
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in LIPSCOMB, TEXAS
From 23-MAY-19 19:43:00 to 23-MAY-19 19:48:00 (CST-6)
Location: LIPSCOMB
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Survey was estimated using radar and chaser video. Occurred in open country and no damage was reported.

Thunderstorm Wind in CARSON, TEXAS
From 23-MAY-19 21:21:00 to 23-MAY-19 21:21:00 (CST-6)
Location: PANHANDLE
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Hail in POTTER, TEXAS
From 23-MAY-19 16:34:00 to 23-MAY-19 16:34:00 (CST-6)
Location: (AMA)AMARILLO INTL A
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

Hail in POTTER, TEXAS
From 23-MAY-19 17:32:00 to 23-MAY-19 17:32:00 (CST-6)
Location: VALLE DE ORO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Hail in POTTER, TEXAS
From 23-MAY-19 16:29:00 to 23-MAY-19 16:29:00 (CST-6)
Location: BUSHLAND
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Late report of ping pong to golf ball size hail stones.

Tornado in LIPSCOMB, TEXAS
From 23-MAY-19 18:19:00 to 23-MAY-19 18:33:00 (CST-6)
Location: LIPSCOMB
Tornado F-scale: EF2
Reported by: NWS Storm Survey

The tornado touched down in northern Roberts County around 659 pm CDT, crossed the Roberts/Ochiltree county line around 704 pm CDT and the Ochiltree/Lipscomb county line around 719 pm CDT before dissipating through a rope out process by 733 pm CDT. Damage from the tornado consisted mostly of damage to trees, power lines and
oil/natural gas field equipment and sheds. There was also two manufactured homes being transported via truck the were blown off Highway 83. The tornado was noted to be larger and possibly stronger in inaccessible open county to the southwest of
the location where it was measured to be around 1/2 mile wide and rated an EF2 by the survey team.

Hail in HUTCHINSON, TEXAS
From 23-MAY-19 16:30:00 to 23-MAY-19 16:30:00 (CST-6)
Location: BORGER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Hail in HUTCHINSON, TEXAS
From 23-MAY-19 16:45:00 to 23-MAY-19 16:45:00 (CST-6)
Location: BORGER
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in OCHILTREE, TEXAS
From 23-MAY-19 17:20:00 to 23-MAY-19 17:20:00 (CST-6)
Location: FARNSWORTH
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Hail in OCHILTREE, TEXAS
From 23-MAY-19 17:27:00 to 23-MAY-19 17:27:00 (CST-6)
Location: PERRYTON
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Late picture report with time estimated by radar.

Hail in HUTCHINSON, TEXAS
From 23-MAY-19 16:50:00 to 23-MAY-19 16:50:00 (CST-6)
Location: BORGER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in HUTCHINSON, TEXAS
From 23-MAY-19 17:00:00 to 23-MAY-19 17:00:00 (CST-6)
Location: BORGER
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Social Media

Late report of pea to quarter size hail with heavy rain received on Facebook.

Tornado in LIPSCOMB, TEXAS
From 23-MAY-19 19:26:00 to 23-MAY-19 19:30:00 (CST-6)
Location: FOLLETT
Tornado F-scale: EF2
Reported by: NWS Storm Survey

The tornado began in Lipscomb County in Texas, crossed into southeast Beaver County Oklahoma and crossed into Ellis and Harper Counties from there. The tornado got stronger and larger with time, but mainly damaged trees, fences and power poles in the area of this survey limiting the EF rating to a 2. The tornado did greater damage (and earned higher rating) as it destroyed a home just feet across the county line. This damage was surveyed by the Norman Weather Forecast Office.

Hail in RANDALL, TEXAS
From 23-MAY-19 17:37:00 to 23-MAY-19 17:37:00 (CST-6)
Location: TIMBERCREEK CANYON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail report received via MPing.

Hail in RANDALL, TEXAS
From 23-MAY-19 17:37:00 to 23-MAY-19 17:37:00 (CST-6)
Location: TIMBERCREEK CANYON
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Tornado in ROBERTS, TEXAS
From 23-MAY-19 17:14:00 to 23-MAY-19 17:28:00 (CST-6)
Location: CODMAN
Tornado F-scale: EF1
Reported by: NWS Storm Survey

NWS storm surveyed a tornado which occurred 12 miles north of Pampa at 614 pm CDT before it lifted at 628 pm CDT 15 miles NNW of Codman.  The tornado damaged powerlines north of Pampa, with a damage path that was over 9 miles long and 50 yards wide. Tornado was given an EF-1 rating.