Late afternoon thunderstorms developed from Tucumcari to Clovis, NM and quickly congealed into a squall line while trekking southeast across the Texas South Plains through the evening. These storms produced several instances of severe wind gusts as they traversed the Texas South Plains, in addition to a wall of dust followed by heavy rains and minor flooding. As this squall line decayed after sunset, additional storms fired along its outflow from the southeast Texas Panhandle through the Rolling Plains. One of these storms east of Childress produced a dust storm that contributed to a fatal multi-vehicle accident near Kirkland.  After midnight, a small line of showers and some thunderstorms redeveloped over the western South Plains and moved south. Although radar indicated very weak precipitation intensities with this line, a macroburst and possible heat burst developed shortly after 0230 CST on July 4th and proceeded to strike the north and east sides of Levelland with fierce straight-line winds of 80-110 mph.  In addition to causing widespread wind damage, two vehicles were overturned by these winds.

Dust Storm in CHILDRESS, TEXAS
From 03-JUL-17 20:50:00 to 03-JUL-17 20:55:00 (CST-6)
Property damage: 70.00K
Crop damage: 0.00K
Reported by: Department of Highways

A blinding dust storm struck southeast Childress County late this night in advance of a strong thunderstorm. As the dust storm enveloped Highway 287 near Kirkland, many motorists slowed to a crawl or stopped, but remained in their lane of travel. A semi trailer approaching from behind was unable to stop in time and crashed into a car, which proceeded to pile into another car. The two occupants of the first car were killed when their vehicle caught fire. Drivers of the semi trailer and second car received minor injuries.

Thunderstorm Wind in CASTRO, TEXAS
From 03-JUL-17 17:10:00 to 03-JUL-17 17:10:00 (CST-6)
Location: DIMMITT MUNI ARPT
Magnitude: 61.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet near Dimmitt.

Thunderstorm Wind in LUBBOCK, TEXAS
From 03-JUL-17 18:46:00 to 03-JUL-17 18:46:00 (CST-6)
Location: (LBB)LUBBOCK INTL AR
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

Measured by the ASOS at Lubbock International Airport.

Thunderstorm Wind in FLOYD, TEXAS
From 03-JUL-17 18:50:00 to 03-JUL-17 18:50:00 (CST-6)
Location: FLOYDADA
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet near Floydada.

Hail in HOCKLEY, TEXAS
From 03-JUL-17 18:55:00 to 03-JUL-17 18:55:00 (CST-6)
Location: LEVELLAND
Magnitude: 1.00 
Reported by: Trained Spotter

Hail up to the size of quarters was reported.  Damage was not known.

Thunderstorm Wind in CROSBY, TEXAS
From 03-JUL-17 19:50:00 to 03-JUL-17 19:50:00 (CST-6)
Location: CROSBYTON MUNI ARPT
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Measured by a Texas Tech University West Texas mesonet near White River Lake.

Thunderstorm Wind in DICKENS, TEXAS
From 03-JUL-17 20:15:00 to 03-JUL-17 20:25:00 (CST-6)
Location: SPUR
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Severe thunderstorm wind gusts occurred for 10 minutes as measured by a Texas Tech University West Texas mesonet near Spur.

Thunderstorm Wind in LUBBOCK, TEXAS
From 04-JUL-17 01:20:00 to 04-JUL-17 01:20:00 (CST-6)
Location: SLATON
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

A heat burst produced brief severe wind gusts as measured by a Texas Tech University West Texas mesonet near Slaton.

Thunderstorm Wind in HOCKLEY, TEXAS
From 04-JUL-17 02:40:00 to 04-JUL-17 02:45:00 (CST-6)
Location: LEVELLAND
Magnitude: 96.00 EG
Property damage: 1.00M
Reported by: NWS Storm Survey

A significant downburst with winds estimated as high as 110 mph struck the northern half of the city of Levelland causing widespread damage to buildings, trees, utility poles, and even rolling two cars from the road.  An NWS damage survey team determined the most intense winds were focused about 2.5 miles east of downtown Levelland.  It was in this area that a pole barn's metal support beams were ripped from their anchors and a car along State Highway 114 was blown off the road and flipped over.  The driver of the car was shaken, but not injured.  Damage elsewhere was consistent with winds of 70 to 90 mph and was comprised of peeled back roofs on some buildings and mobile homes, some street signs bent flat to the ground, many large trees snapped at their base, and even a trampoline wrapped around a power pole.  Three industrial buildings sustained substantial damage. Sections of streets were so cluttered with structural debris that front-end loaders were required to clear a safe path for travel. One man was injured as the awning he was grilling under collapsed and dragged him a short distance. Approximately 40 power poles were damaged leading to some residents being without power for 11 hours.