Several slow-moving severe thunderstorms, including supercells, erupted this afternoon from Parmer County south to Yoakum County along a dryline before spreading east over the remainder of the South Plains through late evening.  Many of these storms produced large hail, downburst winds and heavy rainfall.  An initial supercell near Muleshoe later morphed into an intense cluster of storms that produced destructive downbursts in portions of Hale County.  The worst of these winds toppled two semi-trucks traveling on Interstate 27 causing minor injuries to one of the drivers.  Swaths of heavy rain also accompanied many of these storms resulting in flooded roads and fields.

Funnel Cloud in TERRY, TEXAS
From 12-JUN-15 18:30:00 to 12-JUN-15 18:30:00 (CST-6)
Location: MEADOW
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Two NWS employees observed a tapered funnel cloud one-third of the way to the ground for about 20 seconds.  This funnel developed just as a low-level mesocyclone tightened before becoming undercut by strong outflow from a left-moving supercell to its south.

Flood in LYNN, TEXAS
From 12-JUN-15 18:40:00 to 12-JUN-15 21:00:00 (CST-6)
Location: LAKEVIEW
Flood cause: Heavy Rain
Property damage: 0.00K
Crop damage: 2.50M
Reported by: NWS Employee

Hail in LYNN, TEXAS
From 12-JUN-15 18:36:00 to 12-JUN-15 18:36:00 (CST-6)
Location: NEW HOME
Magnitude: 1.00 
Property damage: 50.00K
Reported by: NWS Employee

Hail of quarter to ping pong ball size was estimated by NWS employees along County Road 211.  About 50 vehicles parked outdoors at a nearby wedding reception received minor hail damage.

Thunderstorm Wind in HALE, TEXAS
From 12-JUN-15 17:13:00 to 12-JUN-15 17:30:00 (CST-6)
Location: BOONE
Magnitude: 70.00 EG
Property damage: 500.00K
Crop damage: 2.00M
Reported by: Law Enforcement

A particularly intense series of downbursts with winds from 60 to 80 mph traveled east-southeast from about five miles west of Plainview to three miles west-southwest of Aiken.  These winds created swaths of damage consisting of siding and roofing blown from homes, downed power poles estimated at nearly 50 in total across northern Hale County, dozens of downed trees, and even two semi-trucks toppled on Interstate 27.  One driver suffered minor injuries and required treatment at a hospital.  A broadcast media's weather station four miles south of Plainview recorded a peak gust to 73 mph at 513 PM and a Texas Tech University West Texas mesonet one mile south of Plainview registered a peak gust to 65 mph at 525 PM.  Law enforcement estimated gusts as high as 80 mph at times when the semi-trucks were blown over.  The number of downed power poles along Interstate 27 forced the closure of all lanes for six hours until utility crews could complete the necessary repairs.

Hail in BAILEY, TEXAS
From 12-JUN-15 15:02:00 to 12-JUN-15 15:02:00 (CST-6)
Location: MULESHOE
Magnitude: 1.50 
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement estimated hail to 1.5 inches in diameter in Muleshoe.  Damage was unknown.

Hail in YOAKUM, TEXAS
From 12-JUN-15 15:06:00 to 12-JUN-15 15:06:00 (CST-6)
Location: BRONCO
Magnitude: 2.50 
Reported by: Amateur Radio

A HAM radio spotter estimated tennis ball size hail.  Damage was unknown.

Thunderstorm Wind in CASTRO, TEXAS
From 12-JUN-15 15:35:00 to 12-JUN-15 15:35:00 (CST-6)
Location: DIMMITT MUNI ARPT
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet.

Hail in HOCKLEY, TEXAS
From 12-JUN-15 16:28:00 to 12-JUN-15 16:28:00 (CST-6)
Location: SUNDOWN
Magnitude: 1.50 
Reported by: Trained Spotter

A storm spotter estimated ping pong ball size hail.  Damage was unknown.

Hail in LAMB, TEXAS
From 12-JUN-15 16:35:00 to 12-JUN-15 16:35:00 (CST-6)
Location: AMHERST
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Quarter size hail was measured by a HAM radio spotter.  No damage was noted.

Thunderstorm Wind in LAMB, TEXAS
From 12-JUN-15 16:45:00 to 12-JUN-15 16:45:00 (CST-6)
Location: HART CAMP
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet.

Hail in COCHRAN, TEXAS
From 12-JUN-15 16:47:00 to 12-JUN-15 16:47:00 (CST-6)
Location: WHITEFACE
Magnitude: 1.50 
Reported by: Emergency Manager

The Cochran County emergency manager estimated 1.5 inch hailstones at FM Roads 1780 and 1585.  Damage was unknown.

Thunderstorm Wind in LAMB, TEXAS
From 12-JUN-15 16:56:00 to 12-JUN-15 16:56:00 (CST-6)
Location: SPADE
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Estimated by a HAM radio spotter.  Multiple gustnadoes were also observed.

Thunderstorm Wind in FLOYD, TEXAS
From 12-JUN-15 17:32:00 to 12-JUN-15 17:32:00 (CST-6)
Location: AIKEN
Magnitude: 61.00 EG
Property damage: 0.50K
Crop damage: 0.00K
Reported by: Trained Spotter

The same series of downbursts that created damage earlier in Hale County continued eastward into northwest Floyd County before dissipating.  A storm spotter observed shingles blown off a roof north of Aiken.

Thunderstorm Wind in LUBBOCK, TEXAS
From 12-JUN-15 19:06:00 to 12-JUN-15 19:06:00 (CST-6)
Location: LUBBOCK AIRPARK
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Estimated by an NWS employee at home.

Hail in LUBBOCK, TEXAS
From 12-JUN-15 18:51:00 to 12-JUN-15 18:55:00 (CST-6)
Location: REESE VLG
Magnitude: 1.75 
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter estimated hail from quarter to golf ball size at Reese Center.  Damage was unknown.

Hail in HOCKLEY, TEXAS
From 12-JUN-15 18:00:00 to 12-JUN-15 18:10:00 (CST-6)
Location: ROPESVILLE
Magnitude: 2.75 
Property damage: 200.00K
Reported by: Storm Chaser

An intense and slow-moving supercell thunderstorm created large hail ranging between ping pong balls and baseballs northeast of Ropesville along Highway 62.  Dozens of vehicles stopped along the highway suffered broken windows and body damage.