The afternoon of the 20th was the beginning of an extended period of several weeks of severe weather for the South Plains and Rolling Plains of West Texas. A high risk of severe weather was issued by the Storm Prediction Center in the morning for the afternoon of the 20th. Southwest flow aloft with an embedded mid level jet streak contributed to an ample amount of lift across the region. Numerous thunderstorms developed east of the dryline which was located west of the Interstate 27/US Highway 87 corridor. Very strong instability developed out ahead of the dryline in the warm sector along with favorable shear for supercell and tornado development. Although no long track tornadoes were observed, there were several weak tornadoes that developed. The most destructive storm of the afternoon was a supercell that moved through parts of the city of Lubbock (Lubbock County). A widespread swath of wind gusts in excess of 60 mph and extensive wind damage was seen from southern Lubbock County up through the south side of Lubbock and into Idalou. Due to the fast moving nature of the thunderstorms, this damage occurred over a period of only nine minutes from 1504 through 1513 CST. Most damage reports consisted of downed trees and power lines.

Tornado in COTTLE, TEXAS
From 20-MAY-19 14:00:00 to 20-MAY-19 14:01:00 (CST-6)
Location: NARCISSO
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The emergency manager for Cottle County witnessed and provided video evidence of a brief tornado near the intersection of US Highway 62 and Farm to Market Road 1037 west of Paducah.

Tornado in COTTLE, TEXAS
From 20-MAY-19 14:01:00 to 20-MAY-19 14:09:00 (CST-6)
Location: PADUCAH
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The emergency manager for Cottle County witnessed and provided video evidence of a tornado near the intersection of County Road 108 and Farm to Market Road 1037 northwest of Paducah.

Hail in FLOYD, TEXAS
From 20-MAY-19 15:31:00 to 20-MAY-19 15:31:00 (CST-6)
Location: FLOYDADA
Magnitude: 1.00 
Reported by: COOP Observer

A NWS cooperative weather observer reported quarter size hail in Floydada. No damage was reported.

Hail in CROSBY, TEXAS
From 20-MAY-19 15:39:00 to 20-MAY-19 15:39:00 (CST-6)
Location: RALLS
Magnitude: 1.00 
Reported by: Emergency Manager

The emergency manager for Crosby County reported quarter size hail approximately five miles south of Ralls on Texas Highway 207. No damage was reported.

Hail in CROSBY, TEXAS
From 20-MAY-19 16:28:00 to 20-MAY-19 16:28:00 (CST-6)
Location: LORENZO
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Thunderstorm Wind in DICKENS, TEXAS
From 20-MAY-19 17:25:00 to 20-MAY-19 17:35:00 (CST-6)
Location: SPUR
Magnitude: 70.00 MG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Mesonet

A Texas Tech University West Texas mesonet site near Spur recorded a wind gust to 80 mph. Furthermore, a swath of thunderstorm wind damage was observed near Spur to approximately six miles north of Spur. Fire department personnel in Spur reported 20 utility poles blown over along Farm to Market Road 1868 just northwest of Spur. Also, a roof was blown off of a house near the intersection of Texas Highway 70 and County Road 466.

Hail in HALL, TEXAS
From 20-MAY-19 15:18:00 to 20-MAY-19 15:18:00 (CST-6)
Location: TURKEY
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

An NWS cooperative weather observer reported quarter size hail in Turkey. No damage was reported.

Hail in KING, TEXAS
From 20-MAY-19 18:38:00 to 20-MAY-19 18:38:00 (CST-6)
Location: GUTHRIE
Magnitude: 1.75 
Reported by: Storm Chaser

A storm chaser reported hail up to golf ball size two miles south of Guthrie.

Hail in KENT, TEXAS
From 20-MAY-19 22:43:00 to 20-MAY-19 22:43:00 (CST-6)
Location: JAYTON
Magnitude: 1.00 
Reported by: Law Enforcement

Law enforcement in Jayton reported quarter size hail. No damage was reported.

Tornado in DICKENS, TEXAS
From 20-MAY-19 13:05:00 to 20-MAY-19 13:18:00 (CST-6)
Location: MC ADOO
Tornado F-scale: EFU
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Both a storm chaser and an off duty NWS employee observed a weak tornado in Dickens County south of McAdoo, just south of US Highway 82 / Texas Highway 114. The tornado remained over open land and did not cause any known damage.

Tornado in DICKENS, TEXAS
From 20-MAY-19 17:47:00 to 20-MAY-19 17:54:00 (CST-6)
Location: DICKENS
Tornado F-scale: EFU
Reported by: Storm Chaser

Numerous storm chasers observed a large rain wrapped tornado about 15 miles east of Dickens near US Highway 82. A storm chaser did report that there were trees downed near the intersection of US Highway 82 and County Road 371.

Flood in STONEWALL, TEXAS
From 20-MAY-19 23:30:00 to 21-MAY-19 01:30:00 (CST-6)
Location: ASPERMONT
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Repeated rounds of thunderstorms and heavy rain lead to minor flooding in Stonewall County on the north side of Aspermont. It was reported that about eight inches of water was flowing over US Highway 83.

Hail in DICKENS, TEXAS
From 20-MAY-19 13:13:00 to 20-MAY-19 13:13:00 (CST-6)
Location: AFTON
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Hail in DICKENS, TEXAS
From 20-MAY-19 13:16:00 to 20-MAY-19 13:16:00 (CST-6)
Location: MC ADOO
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An off duty NWS employee that was storm chasing reported hail up to half dollar size.

Thunderstorm Wind in LYNN, TEXAS
From 20-MAY-19 14:46:00 to 20-MAY-19 14:50:00 (CST-6)
Location: NEW HOME
Magnitude: 65.00 MG
Property damage: 10.00K
Reported by: Mesonet

From 1446 through 1450 CST, severe wind gusts were observed by the Texas Tech University West Texas mesonet site in New Home. The strongest gust reached 75 mph along with one-minute sustained winds of 64 mph. Furthermore, pictures on social media revealed that a few power lines were downed by these high winds.

Hail in CHILDRESS, TEXAS
From 20-MAY-19 14:23:00 to 20-MAY-19 14:23:00 (CST-6)
Location: LOCO
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

A storm chaser reported hail up to the size of tennis balls along Texas Highway 256 in northwestern Childress County.

Thunderstorm Wind in LUBBOCK, TEXAS
From 20-MAY-19 15:04:00 to 20-MAY-19 15:13:00 (CST-6)
Location: SLIDE
Magnitude: 55.00 MG
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Official NWS Observations

A long swath of severe thunderstorm winds caused widespread damage in Lubbock County near Slide, through the city of Lubbock, into Idalou. The peak wind gust recorded was 63 mph by the Automated Surface Observing System (ASOS) at Lubbock Preston Smith International Airport. The NWS office on the south side of the city of Lubbock recorded a wind gust to 60 mph. Numerous trees and utility poles were reported to have been blown over or snapped. Additionally, a home under construction was destroyed by the destructive winds.  A semi-trailer was blown over onto a car near the intersection of Farm to Market roads 41 and 1730 in southern Lubbock County.

Hail in LUBBOCK, TEXAS
From 20-MAY-19 15:08:00 to 20-MAY-19 15:08:00 (CST-6)
Location: SLIDE
Magnitude: 1.75 
Reported by: Public

Hail up to golf ball size was reported near the intersection of 114th Street and Quaker Avenue in the city of Lubbock. This hail report was among the widespread swath of thunderstorm wind damage as the same time.

Hail in LYNN, TEXAS
From 20-MAY-19 15:20:00 to 20-MAY-19 15:20:00 (CST-6)
Location: NEW MOORE
Magnitude: 1.75 
Reported by: Broadcast Media

Local media relayed a report of golf ball size hail approximately ten miles west of O'Donnell.

Thunderstorm Wind in HALE, TEXAS
From 20-MAY-19 15:30:00 to 20-MAY-19 15:30:00 (CST-6)
Location: ABERNATHY
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A Texas Tech University West Texas mesonet site near Abernathy recorded a wind gust to 58 mph.

Thunderstorm Wind in FLOYD, TEXAS
From 20-MAY-19 15:35:00 to 20-MAY-19 15:35:00 (CST-6)
Location: FLOYDADA
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A Texas Tech University West Texas mesonet site near Floydada measured a wind gust to 74 mph.