An upper level low was located over Indiana during the early afternoon hours on Monday, June 10th. Broad cyclonic flow aloft south of this feature brought brisk westerly mid and upper level winds to southern Kentucky and Tennessee. Despite relatively weak instability and moisture availability, cool temperatures aloft and steep mid-level lapse rates lead to the development of several low-topped supercells across the southern portions of the Commonwealth and central Tennessee.  One supercell developed just to the south of Russellville, spawning large hail and a strong tornado.

Hail in SIMPSON, KENTUCKY
From 10-JUN-13 13:06:00 to 10-JUN-13 13:06:00 (CST-6)
Location: FRANKLIN WHAK ARPT
Magnitude: 1.75 
Reported by: Trained Spotter

This hail fell from the supercell thunderstorm that earlier produced an EF-2 tornado well to the west of Franklin.

Hail in SIMPSON, KENTUCKY
From 10-JUN-13 13:10:00 to 10-JUN-13 13:10:00 (CST-6)
Location: FRANKLIN
Magnitude: 2.00 
Reported by: Trained Spotter

A spotter reported that hail up to 2 inches in diameter covered the ground just to the east of Franklin.  This hail came from a supercell that earlier had produced an EF-2 tornado well west of Franklin.

Thunderstorm Wind in ALLEN, KENTUCKY
From 10-JUN-13 13:44:00 to 10-JUN-13 13:44:00 (CST-6)
Location: FLEET
Magnitude: 52.00 EG
Property damage: 0.00K
Reported by: Trained Spotter

A spotter reported that many large tree limbs were downed by thunderstorms winds. Some one-half inch hail also fell.

Thunderstorm Wind in GREEN, KENTUCKY
From 10-JUN-13 15:15:00 to 10-JUN-13 15:15:00 (CST-6)
Location: GREENSBURG
Magnitude: 52.00 EG
Reported by: Trained Spotter

A spotter reported several trees down in Greensburg.

Tornado in LOGAN, KENTUCKY
From 10-JUN-13 12:40:00 to 10-JUN-13 13:00:00 (CST-6)
Location: SCHLEY
Tornado F-scale: EF2
Property damage: 500.00K
Crop damage: 30.00K
Reported by: NWS Storm Survey

A National Weather Service storm survey confirmed a strong, long-tracked tornado that first touched down northwest of Adairville near the intersection of Vick Road and State Highway 96, where a barn sustained roof damage and another outbuilding was destroyed.  This tornado had a 14 mile long track, 9 of which was in Logan County. Overall, this tornado stayed on the ground for 29 minutes.  Damage consistent with a high-end EF-2 tornado was surveyed from near State Highway 96 to just west of the Logan Simpson County line. The worst damage occurred to the north-northeast of Adairville, where the twister crossed Highway 663. Several homes suffered extensive damage. Three people were injured while taking shelter in the bathroom of one home.  A fourth injury occurred at a residence along Trimble Road.  The tornado weakened   as it crossed into Simpson County just north of the intersection of Conn and Reames-Dixon Roads.

Tornado in SIMPSON, KENTUCKY
From 10-JUN-13 13:00:00 to 10-JUN-13 13:09:00 (CST-6)
Location: PRICES MILL
Tornado F-scale: EF1
Property damage: 2.00K
Crop damage: 5.00K
Reported by: NWS Storm Survey

A strong, long tracked tornado, which first touched down in Logan County, continued in Simpson County.  The complete track of this twister was just over 14 miles, with the last 4.8 miles in Simpson County.  Earlier, EF-2 damage was surveyed in Logan County, but, by the time it crossed into Simpson County near the intersection of Conn and Reames-Dixon roads, it had weakened to an EF-1.  Several outbuildings and trees were damaged in Simpson County before the tornado lifted along Russelville-Gallatin Road. Overall, 5 homes in both Logan and Simpson Counties sustained extensive damage, with two other residences suffering minor damage. Five grain bins were destroyed.