Scattered severe thunderstorms erupted this afternoon and tracked eastward across the South Plains and into the Rolling Plains. A few of these storms acquired deep rotation as they interacted with a stationary front draped west-to-east over the region, and resulted in swaths of destructive hail and significant straight line winds at times. One particularly intense supercell storm produced a large swath of downburst winds of 70 to 100 mph over portions of Lubbock, Hale, Crosby, and Dickens Counties.

Thunderstorm Wind in LUBBOCK, TEXAS
From 17-SEP-17 16:40:00 to 17-SEP-17 16:45:00 (CST-6)
Location: SHALLOWATER
Magnitude: 65.00 EG
Property damage: 40.00K
Reported by: Broadcast Media

Downburst winds around 75 mph downed several power lines along Farm-to-Market Road 2528 east of Shallowater.  Some roof damage was also reported to a single family residence in the area.

Thunderstorm Wind in HALE, TEXAS
From 17-SEP-17 17:30:00 to 17-SEP-17 17:30:00 (CST-6)
Location: PETERSBURG
Magnitude: 70.00 EG
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Downburst winds around 80 mph lofted the roof from the Allsup's convenience store in Petersburg.  The roof landed on an adjacent mobile home, causing moderate damage to the residence.  Much of the store suffered water damage from the ensuing heavy rainfall.

Thunderstorm Wind in DICKENS, TEXAS
From 17-SEP-17 18:21:00 to 17-SEP-17 18:21:00 (CST-6)
Location: MC ADOO
Magnitude: 70.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Floyd County Emergency Manager relayed a report from a fire department member in McAdoo who lost a corner of their home's roof during intense straight line winds.

Thunderstorm Wind in FLOYD, TEXAS
From 17-SEP-17 20:20:00 to 17-SEP-17 20:20:00 (CST-6)
Location: FLOYDADA
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 BAILEY, TEXAS
From 17-SEP-17 15:25:00 to 17-SEP-17 15:35:00 (CST-6)
Location: ENOCHS
Magnitude: 2.75 
Property damage: 300.00K
Crop damage: 1.00M
Reported by: Broadcast Media

Broadcast media relayed damage photos of a significant hailstorm that struck the community of Bula. Wind-driven hail as large as baseballs pummeled crops and caused extensive damage to siding, windows and roofs to dozens of buildings in the area.

Hail in HOCKLEY, TEXAS
From 17-SEP-17 16:16:00 to 17-SEP-17 16:16:00 (CST-6)
Location: SMYER
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Thunderstorm Wind in CROSBY, TEXAS
From 17-SEP-17 17:55:00 to 17-SEP-17 17:55:00 (CST-6)
Location: RALLS
Magnitude: 64.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet southeast of Ralls.

Thunderstorm Wind in CROSBY, TEXAS
From 17-SEP-17 17:35:00 to 17-SEP-17 17:55:00 (CST-6)
Location: ESTACADO
Magnitude: 87.00 EG
Property damage: 1.50M
Crop damage: 0.50M
Reported by: NWS Storm Survey

A large and particularly destructive macroburst (downburst winds more than 2.5 miles in width) tracked east across most of northern Crosby County this evening, accompanied by winds ranging from 80 to 100 mph at times. Data from radar and damage patterns during a NWS storm survey indicated these intense winds were about five miles in width, and traveled for a distance of almost 30 miles. The community of Cone was struck especially hard by these winds. An older, single family home had a west-facing wall partially collapse, and the roof to a grain store was blown off and deposited on US Highway 62 forcing a temporary closure of the road. Additional damage in Cone consisted of several downed power lines, about ten snapped utility poles, a few downed trees, light to moderate building damage, and one metal shed that was destroyed and had its contents of antique tractors and vehicles damaged. The NWS damage survey also noted several dozen more damaged power lines throughout northern Crosby County, along with multiple center pivot irrigation systems overturned. Cotton, corn, and sorghum crops sustained light to moderate damage, however some crops used as silage were completely flattened by the intense winds. Combined losses in Crosby County alone are estimated to be nearly $2 million USD.