An environment of strong wind shear and weak to moderate instability supported the development of a mini-supercell thunderstorm over the eastern Upstate of South Carolina. The storm produced an EF2 tornado in Chester County, along with a couple of weaker tornadoes.

Tornado in YORK, SOUTH CAROLINA
From 16-NOV-11 17:32:00 to 16-NOV-11 17:41:00 (EST-5)
Location: MC CONNELLS
Tornado F-scale: EF2
Property damage: 1.00M
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado that touched down near Lowrys in extreme northern Chester County moved into York County southeast of McConnells, just east of Darby Rd. The damage path was non-continuous for the first three miles of its track across York County, although open farmland made it difficult to determine if the tornado was in constant contact with the ground in this area. Damage was generally confined to scattered downed trees. Damage intensified as the tornado approached the Williamson Rd area, near its intersection with Erby Rd, where tree damage became more concentrated. The tornado became very strong and increased in size as it approached and crossed highway 324 in the Ogden Community, near its intersection with Skyline Rd and Williamson Rd. Around a dozen homes were damaged in this area, with one double-wide mobile home being rolled about 75 yards. Two occupants of this home were killed. Another man was killed when the roof of his home was blown off, causing a chimney to collapse on him. Five other people were injured in the Ogden area. A number of sheds and outbuildings were damaged or destroyed and several automobiles were also flipped. The tornado lifted east of Skyline Rd, just short of Vernsdale Rd. The tornado was the strongest to hit York County in almost 40 years, and was the county's first known killer tornado since 1926. The thunderstorm that spawned the tornado was a mini-supercell that traveled over 110 miles before dissipating shortly after the second tornado lifted.

Funnel Cloud in LAURENS, SOUTH CAROLINA
From 16-NOV-11 16:20:00 to 16-NOV-11 16:20:00 (EST-5)
Location: EKOM
Reported by: Law Enforcement

A sheriff's deputy reported a funnel cloud, but a tornado could not be confirmed.

Tornado in UNION, SOUTH CAROLINA
From 16-NOV-11 17:06:00 to 16-NOV-11 17:07:00 (EST-5)
Location: CAREM
Tornado F-scale: EF0
Property damage: 1000.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An area of weak tornado damage was surveyed near the intersection of Neal Shoals Rd and Fairview Church Circle. Part of the roof was blown off a barn and shingles were removed from a house. Numerous trees were uprooted or snapped in the area as well.

Tornado in CHESTER, SOUTH CAROLINA
From 16-NOV-11 17:30:00 to 16-NOV-11 17:32:00 (EST-5)
Location: DINBER
Tornado F-scale: EF1
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado initially touched down in a rural area of extreme northern Chester County, near the Lowrys community, just west of Darby Rd. The open farmland in this area made it difficult to follow the track, but several trees were blown down and part of the roof was removed from a home. The tornado traveled northeast, across Darby Rd before crossing into York County.