After the morning complex of storms and associated flash flooding northeast of the South Plains, an outflow boundary from these storms surged west onto the Caprock ahead of strong easterly winds and widespread blowing dust. This dust became thick enough to reduce visibilities occasionally below 1/4 mile in some areas. By mid-afternoon, a lone supercell storm developed along this boundary in southeast Cochran County and later produced a 20-minute EF-2 tornado in southwest Hockley County. Although this tornado remained over mostly undeveloped land, some oil field equipment, metal buildings, and power poles were heavily damaged or destroyed. The parent supercell also produced very large hail slightly larger than three inches in diameter that damaged some homes and vehicles. Farther west, scattered storms exited east-central New Mexico and produced a few instances of sub-severe wind gusts in Parmer and Bailey Counties along with marginally severe hail near Muleshoe. As these storms continued east and moved into more stable air behind the outflow boundary, they quickly weakened but still managed to generate locally heavy rainfall.

Hail in BAILEY, TEXAS
From 19-JUN-13 17:18:00 to 19-JUN-13 17:18:00 (CST-6)
Location: MULESHOE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement personnel estimated quarter size hail on Farm-to-Market Road 1731 about one mile southwest of Muleshoe. No damage was reported.

Tornado in HOCKLEY, TEXAS
From 19-JUN-13 16:32:00 to 19-JUN-13 16:52:00 (CST-6)
Location: SUNDOWN
Tornado F-scale: EF2
Property damage: 50.00K
Reported by: NWS Storm Survey

A supercell thunderstorm spawned an EF-2 tornado in far southwest Hockley County resulting in damage to oil field equipment, outbuildings, power poles, and storage tanks. Although the parent storm moved very slowly east throughout the tornado's life, a strong rear flank downdraft and occluding mesocyclone caused the tornado to veer sharply northward early in its life. This tornado began about 4 miles west-northwest of Sundown and moved northward for just over 5 miles in length before ending about 4.2 miles southeast of Whiteface. Photos and video from a storm chaser captured the evolution of this tornado. The tornado began as a compact debris cloud that became weak and diffuse just minutes before a narrow, fully condensed tornado emerged within wrapping rain curtains. At this point, a satellite funnel was observed along the periphery of the tornado, but this funnel is not believed to have become tornadic. After being largely obscured in rain for nearly five minutes, the tornado re-emerged as a fully condensed cone shape just before crossing FM Road 1585 and finally dissipating north of the road. The end time of the tornado was approximated from NWS Lubbock radar data. A NWS storm survey discovered scattered damage throughout portions of the tornado's track - the most intense of which was rated EF-2 over the southern portion of its path. Specifically, in excess of one dozen power poles were snapped at their base and a free-standing metal tower at a well site was bent. In a surrounding field, a wide swath of mesquite trees with branches of 1 to 3 inches in diameter were sheared off. This damage suggested maximum wind speeds were likely around 115 mph. Farther north at the abandoned Oxy facility located on FM 1585 west of Sampson Post Road, a large portion of a metal roof was removed and a nearby metal building was shifted off its foundation. Also, a large tree on the property was uprooted. This portion of damage was rated EF-0. North of the Oxy facility, EF-0 damage was noted to two fiberglass tank batteries with the top of one completely removed. The NWS in Lubbock would like to thank Hockley County emergency management for assisting with this storm survey.

Hail in HOCKLEY, TEXAS
From 19-JUN-13 16:03:00 to 19-JUN-13 16:03:00 (CST-6)
Location: COBLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A SKYWARN spotter estimated quarter size hail two miles southeast of Whiteface. No damage was reported.

Hail in HOCKLEY, TEXAS
From 19-JUN-13 16:30:00 to 19-JUN-13 16:58:00 (CST-6)
Location: SUNDOWN
Magnitude: 3.10 
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Employee

A NWS employee and storm chaser observed hail of tennis ball size to just over three inches in diameter. The most destructive hailswath occurred from about five miles northwest of Sundown to four miles north-northeast of Sundown. Video indicated the very large hail fell for nearly six minutes at one location. Vehicles and buildings throughout the hailswath sustained various degrees of damage.