Thunderstorms developed beneath the core of an upper level storm system as it translated eastward over the west Texas South Plains before midday on the 7th.
Some of these storms initiated along a weak pre-existing low-level boundary that was oriented west-northwest to east-southeast over portions of Hockley and Lubbock Counties. With very steep lapse rates and strong low-level instability along this boundary, storm updrafts provided enough stretching along the boundary to result in at least one tornado in eastern Hockley County. The storms then continued eastward producing up to one inch diameter hail over the southern half of Lubbock County.
The same complex of storms then moved eastward through the early afternoon hours. An additional cell strengthened to severe levels in King County and produced severe wind gusts.
West to northwesterly gradient winds increased in the wake of the departing storm system aloft and the convective activity. These winds, possibly enhanced by momentum transfer near weak convective showers, resulted in a period of high winds near Jayton (Kent County).
No damage was reported from any of the severe weather impacts across the west Texas South Plains on the 7th.

High Wind in KENT, TEXAS
From 07-MAY-08 13:15:00 to 07-MAY-08 14:15:00 (CST-6)
Magnitude: 51.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Texas Tech University West Texas Mesonet site near Jayton recorded an abrupt onset of high winds with a severe gust of 59 mph recorded at 13:30 CST. Sustained wind speeds near 40 mph persisted for some time following the severe gust. Local officials reported no wind damage across the area.

Thunderstorm Wind in KING, TEXAS
From 07-MAY-08 13:15:00 to 07-MAY-08 13:33:00 (CST-6)
Location: GUTHRIE
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Texas Tech West Texas Mesonet site southwest of Guthrie recorded a severe thunderstorm wind gust of 58 mph at 13:15 CST. The storm continued to produce severe winds as it moved eastward, passing south of Guthrie, and then along U.S. Highway 82 east of the city. A resident at a ranch ten miles east of Guthrie estimated gusts up to 60 mph as the storm passed that location at 13:33. In addition, pea size hail reportedly covered the ground. No damage was reported.

Tornado in HOCKLEY, TEXAS
From 07-MAY-08 10:50:00 to 07-MAY-08 10:52:00 (CST-6)
Location: SMYER
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A rope-shaped tornado was witnessed by several people north of Smyer just before 11:00 CST. The tornado reportedly remained in open fields near the Spade Ranch north of Texas Highway 114, and generally west of Farm to Market Road 168. Although the tornado may have actually crossed Farm to Market Road 168 before it dissipated, no damage was reported.

Hail in LUBBOCK, TEXAS
From 07-MAY-08 10:58:00 to 07-MAY-08 11:49:00 (CST-6)
Location: WOLFFORTH
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A pair of severe thunderstorms produced large hail over southern Lubbock and the surrounding area during the 11:00 CST hour.
An isolated storm developed near an outflow boundary over southwestern Lubbock County. Meteorologists from the Texas Tech University Atmospheric Science Department initially reported quarter size hail at the intersection of Farm to Market Road 1585 and Milwaukee Avenue at 10:58 CST. The storm moved east and continued to produce up to one inch diameter hail through 11:30 CST. Reports indicated that hail covered the ground near Woodrow, and eventually along U.S. Highway 84 at Posey.
Meanwhile, a thunderstorm which had earlier produced a tornado in eastern Hockley County resulted in a second hail swath across the city. Numerous reports were received of pea size hail across the southern half of Lubbock. A broadcast meteorologist reported that the copious amount of small hail was accompanied by several larger stones that ranged in size from nickels to quarters at the intersection of 98th and University. No damage was reported.