A strong upper level low pressure system dipped to near Southern Nevada and Four Corners area as it developed, before lifting northeast to western Nebraska by Tuesday October 12th providing significant lift in the atmosphere favorable for thunderstorm development.  A dryline trough extended from the central Oklahoma Panhandle south to southeast near Borger and Clarendon in the afternoon. Scattered high-based and weak showers and thunderstorms developed across the western Panhandles in advance of a Pacific cold front but west of the dryline.  A few of these produced strong wind gusts which were caused by evaporation of some or all of the rain as it fell through the very dry lower levels of the atmosphere, resulting in dry microburst/downburst processes. There were multiple instances of severe wind gusts reported with dissipating showers or virga.  Storms strengthened as they reached and crossed the surface dryline across the north central Panhandles and much better low level moisture and overall instability became available. With very strong wind shear good instability in place, these storms became organized into line segments and a few storms exhibited brief supercell structure.  An anticipated tornado threat ended up being limited by more stable air near the surface and a strong cap limiting storm formation away of the frontal boundary, despite other very favorable parameters.  Hail became the main reported impact of these storms as they tracked east into the overnight hours as they also expanded south. Most of the severe storm reports occurred with clusters of storms in the central Oklahoma Panhandle and along or just south of Highway 60 from Amarillo to Higgins.

Thunderstorm Wind in MOORE, TEXAS
From 12-OCT-21 18:55:00 to 12-OCT-21 18:55:00 (CST-6)
Location: DUMAS MUNI ARPT
Magnitude: 53.00 MG
Reported by: AWOS

Is believed that this gust was due to a 'virga bomb'.

Thunderstorm Wind in HANSFORD, TEXAS
From 12-OCT-21 20:24:00 to 12-OCT-21 20:24:00 (CST-6)
Location: SPEARMAN
Magnitude: 52.00 MG
Reported by: Mesonet

Thunderstorm Wind in POTTER, TEXAS
From 12-OCT-21 20:44:00 to 12-OCT-21 20:44:00 (CST-6)
Location: (AMA)AMARILLO INTL A
Magnitude: 55.00 MG
Reported by: ASOS

This gust was due to a 'virga bomb'.

Hail in CARSON, TEXAS
From 12-OCT-21 22:11:00 to 12-OCT-21 22:11:00 (CST-6)
Location: PANHANDLE
Magnitude: 1.00 
Reported by: Public

Thunderstorm Wind in POTTER, TEXAS
From 12-OCT-21 21:04:00 to 12-OCT-21 21:04:00 (CST-6)
Location: AMARILLO
Magnitude: 56.00 EG
Reported by: Law Enforcement

Small area of damage around the 6 blocks along and near Humphreys Highlands Elementary School. The damage consisted of mostly 1 to 3 inch diameter  tree limbs with a few large limbs. Also, there was damage to shingles and weak or loose  structures was also noted.

Hail in GRAY, TEXAS
From 12-OCT-21 22:56:00 to 12-OCT-21 22:56:00 (CST-6)
Location: KINGS MILL
Magnitude: 1.75 
Reported by: Emergency Manager

Hail in GRAY, TEXAS
From 12-OCT-21 23:03:00 to 12-OCT-21 23:03:00 (CST-6)
Location: LEFORS
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Hail in LIPSCOMB, TEXAS
From 12-OCT-21 23:36:00 to 12-OCT-21 23:36:00 (CST-6)
Location: HIGGINS
Magnitude: 1.25 
Reported by: Public