A large, nearly cut-off upper closed low located over Kansas brought several bands of convection to Kentucky and Indiana. During the early afternoon, a cluster of low-topped storms developed east of Bowling Green and moved north towards Louisville. This convection, which was barely deep enough to produce any lightning, became surface-based as slightly unstable conditions developed within a clear slot that rotated across the Lower Ohio Valley in the wake of early morning showers. A couple of these cells developed into mini-supercells with rotation. Two weak tornadoes touched down in and just east of the Louisville metro area.  Additional thunderstorms with large hail developed later that evening ahead of a final disturbance rotating around the south side of the upper low.

Thunderstorm Wind in TAYLOR, KENTUCKY
From 23-MAR-12 21:40:00 to 23-MAR-12 21:40:00 (EST-5)
Location: BENGAL
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

The Kentucky Mesonet located 4 miles north of Black Gnat measured a 62 mph wind gust.

Tornado in JEFFERSON, KENTUCKY
From 23-MAR-12 14:07:00 to 23-MAR-12 14:12:00 (EST-5)
Location: THIXTON
Tornado F-scale: EF1
Property damage: 300.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado touched down just north of the intersection of Cedar Creek and Mount Washington Roads, located around one and one half miles southeast of Quail Chase Golf Course in southeast Louisville. It moved north-northeast, crossing Cedar Creek Road several times. Near Brook Chase Court, the tornado totally destroyed one modular home, knocking it off its foundation and pancaking the first floor under the second level. One well-built brick home had it roof taken off. Numerous other homes along the path sustained damage to their roofs, siding and windows.  The tornado was rated a strong EF-1, with estimated winds of 105 to 110 mph.  The maximum width of the tornado was 70 yards, but during most of its path it was 40-50 yards wide.

Tornado in SHELBY, KENTUCKY
From 23-MAR-12 14:28:00 to 23-MAR-12 14:33:00 (EST-5)
Location: FINCHVILLE
Tornado F-scale: EF1
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

This tornado touched down 1.6 miles east-southeast of Finchville just north of the end of Duvall Lane.  It then traveled north-northeast and produced a track of just over 2 miles over mainly plowed field and strips of forest. Two barns were destroyed. Two other barns has much of their roofs removed.  In one case, portions of the roof were strewn downwind across a field and became lodged within a grove of trees.  More than two dozen trees were snapped or uprooted.  It lifted 1 mile south of the intersection of Taylorsville Road and Interstate 64.

Thunderstorm Wind in TAYLOR, KENTUCKY
From 24-MAR-12 02:40:00 to 24-MAR-12 02:40:00 (EST-5)
Location: SWEENEYVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The local emergency management relayed a report of a large tree downed across Phillips Road near Highway 210 just northwest of Campbellsville.

Thunderstorm Wind in SCOTT, KENTUCKY
From 23-MAR-12 23:08:00 to 23-MAR-12 23:08:00 (EST-5)
Location: GREAT CROSSING
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Several trees were downed along with minor property damage at the intersection of Belvedere and Frankfort Pike.  Local emergency management also reported several trees downed across other portions of the county.