An active round of severe thunderstorm occurred over the west Texas South Plains during the afternoon and evening hours of the 13th. Several storms evolved into supercells, and produced very large hail, destructive winds, and weak tornadoes.
Thunderstorms initiated around 14:00 CST over the central South Plains, and quickly became severe with large hail initially reported in Lubbock (Lubbock County). More intense and organized supercell storms formed over the Rolling Plains by the mid to late afternoon hours, however, and moved southeastward. One particularly organized and long-lived high precipitation supercell impacted the Aspermont vicinity of Stonewall County, where it produced a swath of damaging winds and at least one tornado. A 100 mph wind gust and a corresponding 32 millibar pressure drop was measured when the tornado struck the Texas Tech University West Texas Mesonet site northeast of Aspermont. Although no injuries were reportedly related to the tornado, severe gusts north of Aspermont overturned a tractor trailer truck injuring the driver.
Additional supercells impacted portions of Briscoe and Hale Counties, and very large wind-blown hail caused damages in both counties. Two tornadoes were observed by storm chasers in the Silverton and Quitaque vicinity of southern Briscoe County.
Total economic damages were estimated near $650,000 across the South Plains region.

Tornado in BRISCOE, TEXAS
From 13-JUN-09 17:51:00 to 13-JUN-09 17:52:00 (CST-6)
Location: SILVERTON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

The previously tornadic supercell near Silverton continued to move east and produced a second tornado southeast of the city shortly before 18:00 CST. Storm chasers witnessed the rope-shaped tornado for approximately one minute as it emerged from precipitation. The tornado occurred in open country and no damage was reported.

Thunderstorm Wind in BRISCOE, TEXAS
From 13-JUN-09 18:05:00 to 13-JUN-09 18:05:00 (CST-6)
Location: SILVERTON
Magnitude: 56.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Texas Tech University West Texas Mesonet site east of Silverton recorded a peak thunderstorm gust of 65 mph at 18:05 CST. No damage was reported.

Hail in HALE, TEXAS
From 13-JUN-09 17:45:00 to 13-JUN-09 17:47:00 (CST-6)
Location: SETH WARD
Magnitude: 2.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SHAVE Project

Two inch diameter hail was reported by the The National Severe Storms Laboratory SHAVE Project east of Seth Ward. These very large hail stones briefly mixed with smaller quarter size hail. No significant damage was reported as a result of the hail.

Thunderstorm Wind in HALE, TEXAS
From 13-JUN-09 17:40:00 to 13-JUN-09 17:40:00 (CST-6)
Location: SETH WARD
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SHAVE Project

Thunderstorm winds blew siding off of a barn just southwest of Seth Ward at 17:40 CST. By 17:45 CST, large hail began to fall at the damage site.

Hail in SWISHER, TEXAS
From 13-JUN-09 17:30:00 to 13-JUN-09 17:30:00 (CST-6)
Location: TULIA
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A second severe storm impacted the Tulia area around 17:30 CST. Penny size hail was reported just northeast of the city by an off-duty National Weather Service meteorologist.

Tornado in BRISCOE, TEXAS
From 13-JUN-09 17:32:00 to 13-JUN-09 17:32:00 (CST-6)
Location: SILVERTON
Tornado F-scale: EF0
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Storm Chaser

Multiple storm chasers, including off-duty National Weather Service meteorologists, and local law enforcement officials reported witnessing a brief tornado southwest of Silverton shortly after 17:30 CST. The tornado reportedly appeared as a narrow rope condensation funnel which extended more than half way to the surface with a brief dust whirl noted at the ground. The tornado remained in open country and no damage was reported.

Hail in BRISCOE, TEXAS
From 13-JUN-09 17:32:00 to 13-JUN-09 17:46:00 (CST-6)
Location: SILVERTON
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Local law enforcement officials and storm spotters reported golfball size hail in Silverton. Deputies observed a brief tornado southwest of the city near the onset of the hail fall. No significant damages were reported.

Hail in BRISCOE, TEXAS
From 13-JUN-09 15:05:00 to 13-JUN-09 15:18:00 (CST-6)
Location: QUITAQUE
Magnitude: 4.00 
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The public and local fire department officials reported that predominately golfball size hail was mixed with intermittent hail stones as large as softballs in Quitaque. The hail reportedly combined with damaging thunderstorm winds to knock out many windows in Quitaque. Combined damages from wind and hail were estimated to approach $200,000. No injuries were reported.

Thunderstorm Wind in KENT, TEXAS
From 13-JUN-09 16:50:00 to 13-JUN-09 17:15:00 (CST-6)
Location: JAYTON
Magnitude: 56.00 MG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Mesonet

The Texas Tech University West Texas Mesonet site near Jayton initially recorded a thunderstorm wind gust of 64 mph at 16:50 CST. By 17:15 CST, a 58 mph gust was additionally recorded by the same mesonet site. Local law enforcement officials reported that several utility lines and poles were blown down in the Jayton vicinity. Authorities reported that a number of residents were without power throughout much of the night.

Hail in BRISCOE, TEXAS
From 13-JUN-09 15:05:00 to 13-JUN-09 15:20:00 (CST-6)
Location: QUITAQUE
Magnitude: 1.75 
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous reports of large hail were received from the Quitaque and Caprock Canyons State Park areas of Briscoe County shortly after 15:00 CST. Initial reports indicated that golfball size hail, and occasionally larger hail stones, combined with damaging thunderstorm winds to knock out many windows in Quitaque. Combined damages from wind and hail were estimated to approach $200,000. No injuries were reported.

Tornado in STONEWALL, TEXAS
From 13-JUN-09 17:25:00 to 13-JUN-09 17:35:00 (CST-6)
Location: ASPERMONT
Tornado F-scale: EF1
Property damage: 100.00K
Crop damage: 0.00K
Reported by: Mesonet

A tornado tracked southeast through rural areas near Aspermont between 17:25 CST and 17:35 CST. This tornado was obscured by precipitation and blowing dust within a massive high precipitation supercell. Although storm chasers observed suspicious storm features and small debris fallout that led them to believe a tornado was lurking within the bear's cage, visual observations of the tornado were virtually non-existent. The tornado, however, struck a Texas Tech University West Texas Mesonet site three miles northeast of Aspermont at 17:30 CST. Both meteorological data from the mesonet and a post-storm survey confirmed the occurrence of this tornado.
The tornado developed near the intersection of Farm to Market Roads 3431 and 1263 two and a half miles north of Aspermont. Texas Department of Transportation signs were blown in multiple directions near the intersection, and a 200 yard path in broken utility poles displayed distinctly different fall patterns than the many additional downed poles along the broader swath of ambient thunderstorm winds.
Two homes along Farm to Market Road 3431 were damaged east of the intersection. The most significant damage included a partially removed roof and the destruction of two barns. Multiple stock trailers were rolled, with one apparently displaced some distance and unaccounted for. A resident witnessed the event and described strong northwesterly winds, then a period of relatively light winds. During the calm, three white funnels were seen approaching the property; followed by the onset of a loud roar and an intense wind that caused the structure's roof to lift.
The damage path remained visible in native mesquite tree damage and damage to fences and utilities southeastward to the mesonet site located three miles northeast of Aspermont. At 17:30 CST the automated station recorded a peak gust of 100 mph and a corresponding brief surface pressure drop of 32 millibars. A guy wire to the station was broken, but significant operational damage did not occur.
The end of the tornado's path was difficult to discern, but it is believed the tornado dissipated before it reached U.S. Highway 380 east of Aspermont. Although evidence of additional tornadoes was not found in Stonewall County, the supercell cycled again and produced a significant tornado in adjacent parts of Haskell County.
Tornado related damages are estimated at $100,000, with approximately $350,000 in total losses attributed to both wind and tornado activity in the Aspermont vicinity on the 13th. No injuries were reported.

Hail in HALE, TEXAS
From 13-JUN-09 17:40:00 to 13-JUN-09 18:15:00 (CST-6)
Location: SETH WARD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SHAVE Project

The National Severe Storms Laboratory SHAVE Project reported quarter size hail, occasionally larger, in the Seth Ward vicinity between 17:45 and 18:15. The hail was preceded by damaging thunderstorm winds immediately southwest of Seth Ward.

Thunderstorm Wind in STONEWALL, TEXAS
From 13-JUN-09 17:20:00 to 13-JUN-09 17:55:00 (CST-6)
Location: ASPERMONT
Magnitude: 66.00 MG
Property damage: 250.00K
Crop damage: 0.00K
Reported by: Mesonet

A massive high precipitation supercell storm tracked southeastward over Stonewall County during the 17:00 CST hour on the 13th. The storm produced a large swath of damaging winds as it impacted areas near Aspermont. A Texas Tech University West Texas Mesonet site northeast of the city sustained a direct hit from a weak tornado which was embedded within the parent mesocyclone.
Skywarn storm spotters and storm chasers initially reported thunderstorm winds estimated between 70 mph and 80 mph along U.S. Highway 83 north of Aspermont at 17:22 CST. At approximately the same time, the onset of severe 60 mph gusts occurred at the Aspermont mesonet station. Severe gusts persisted for thirty minutes at the mesonet site, and local law enforcement officials reported that a tractor-trailer was blown over near the intersection of U.S. Highways 83 and 380 northeast of Aspermont at 17:34 CST. The driver of the truck was treated for minor injuries and released. The passage of a tornado at the site was well-corroborated by detailed pressure analyses, storm chaser accounts, and post-storm surveys at 17:30 CST. Although the highest wind speeds measured by the mesonet station during the event were tornadic in nature, a peak non-tornadic wind gust of 76 mph was recorded at 17:45 CST, ten minutes after the tornado had passed.
A post-storm survey by Texas Tech University West Texas Mesonet meteorologists revealed that utility poles were snapped along a three mile swath northeast of Aspermont. Minor damages to light weight structures and trailers was additionally common, along with wind damage to native mesquite trees and one center irrigation pivot system was destroyed. The most significant structural damage occurred three miles east of Aspermont just south of U.S. Highway 380, where a the roof was blown off of a well-constructed farm house and a large horse bard was substantially damaged. This damage was deemed to have most likely resulted from outflow winds given that all debris from the structures was blown downwind toward the southeast.

Thunderstorm Wind in BRISCOE, TEXAS
From 13-JUN-09 15:10:00 to 13-JUN-09 15:18:00 (CST-6)
Location: QUITAQUE
Magnitude: 52.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

Numerous reports of wind-blown hail were received from the Quitaque vicinity. Thunderstorm wind gusts estimated near 60 mph blew golfball to softball size hail through many windows in the town. Combined damages from wind and hail were estimated to approach $200,000. No injuries were reported.

Hail in SWISHER, TEXAS
From 13-JUN-09 16:10:00 to 13-JUN-09 16:37:00 (CST-6)
Location: TULIA
Magnitude: 1.75 
Property damage: 50.00K
Crop damage: 0.00K
Reported by: SHAVE Project

Multiple reports of large hail were received from near Tulia to Vigo Park. Reports indicated that quarter to golfball size hail damaged several vehicles in Tulia between 16:10 CST and 16:25 CST. By 16:37 CST penny size hail was reported in Vigo Park.

Hail in KING, TEXAS
From 13-JUN-09 15:51:00 to 13-JUN-09 15:51:00 (CST-6)
Location: GUTHRIE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

A National Weather Service cooperative observer reported quarter size hail along U.S. Highway 82 west of Guthrie.

Thunderstorm Wind in KING, TEXAS
From 13-JUN-09 16:05:00 to 13-JUN-09 16:05:00 (CST-6)
Location: GUTHRIE
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Texas Tech University West Texas Mesonet site southwest of Guthrie recorded a thunderstorm wind gust of 58 mph. No damage was reported.

Hail in MOTLEY, TEXAS
From 13-JUN-09 15:03:00 to 13-JUN-09 15:03:00 (CST-6)
Location: ROARING SPGS
Magnitude: 1.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Fire Department/Rescue

The Matador Fire Department reported golfball size hail in Roaring Springs. No damage was reported.

Hail in LUBBOCK, TEXAS
From 13-JUN-09 14:20:00 to 13-JUN-09 14:25:00 (CST-6)
Location: DOUD
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The broadcast media and trained storm spotters reported penny to quarter size hail in west Lubbock.

Hail in BRISCOE, TEXAS
From 13-JUN-09 15:20:00 to 13-JUN-09 15:20:00 (CST-6)
Location: QUITAQUE
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

The broadcast media relayed reports of tennis ball size hail in Caprock Canyons State Park. No damage was reported.