An area of low pressure approached the Ohio Valley from the northwest on April 25th.  Ahead of it, a strong warm front sharpened across southern Indiana and central Kentucky.  South of the front, sunshine broke out and helped temperatures surge into the 80s, while north of the front temperatures were only in the 50s. At one point, there was a 40 degree temperature difference across the state of Kentucky from north to south!  This strong front helped to focus severe thunderstorm development in the late afternoon and evening hours.  Many of the storms that formed were supercells, which dropped very large hail. Two of these supercells developed weak tornadoes during the evening hours.

Hail in NELSON, KENTUCKY
From 25-APR-15 18:30:00 to 25-APR-15 18:30:00 (EST-5)
Location: WOODLAWN
Magnitude: 1.25 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Half dollar size hail was reported east of Bardstown, near Woodlawn, by a trained spotter.

Hail in SHELBY, KENTUCKY
From 25-APR-15 19:07:00 to 25-APR-15 19:07:00 (EST-5)
Location: SHELBYVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported quarter size hail 1 mile west of Shelbyville.

Hail in MADISON, KENTUCKY
From 25-APR-15 19:08:00 to 25-APR-15 19:08:00 (EST-5)
Location: MIDDLETOWN
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported ping pong size hail near Berea.

Hail in SHELBY, KENTUCKY
From 25-APR-15 19:12:00 to 25-APR-15 19:12:00 (EST-5)
Location: JOYES
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Penny size hail was reported near Shelbyville.

Hail in BOYLE, KENTUCKY
From 25-APR-15 19:19:00 to 25-APR-15 19:19:00 (EST-5)
Location: DANVILLE
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trained spotters reported quarter size hail in Danville.

Hail in WASHINGTON, KENTUCKY
From 25-APR-15 18:45:00 to 25-APR-15 18:45:00 (EST-5)
Location: SPRINGFIELD
Magnitude: 2.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Social media pictures submitted showed tennis ball size hail fell in Springfield.

Tornado in ADAIR, KENTUCKY
From 25-APR-15 19:29:00 to 25-APR-15 19:36:00 (CST-6)
Location: GLENS FORK
Tornado F-scale: EF1
Property damage: 150.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An NWS Storm Survey found that the tornado first touched down 6 miles southeast of Columbia along Dale Morrison Road. Numerous trees were uprooted, a 145-foot barn was destroyed, and  the top sheared off an adjacent silo. The tornado then moved east into a wooded area, snapping and uprooting trees. It damaged three more barns and uprooted more trees along Montpelier Rd. A home near the intersection of Montpelier Rd and Old Montpelier Rd sustained minor siding damage.

Hail in WASHINGTON, KENTUCKY
From 25-APR-15 17:58:00 to 25-APR-15 17:58:00 (EST-5)
Location: LITSEY
Magnitude: 1.50 
Reported by: Emergency Manager

Washington County emergency management reported ping pong sized hail near Litsey.

Thunderstorm Wind in EDMONSON, KENTUCKY
From 25-APR-15 18:10:00 to 25-APR-15 18:10:00 (CST-6)
Location: SEGAL
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: NWS Employee

A storm survey team found that straight line wind damage occurred with large limbs broken and snapped off. A metal roof of a barn was blown off by the severe thunderstorm winds.

Hail in MADISON, KENTUCKY
From 25-APR-15 19:11:00 to 25-APR-15 19:11:00 (EST-5)
Location: MIDDLETOWN
Magnitude: 1.75 
Reported by: Public

Public report of 1.75 hail in Berea.

Hail in GARRARD, KENTUCKY
From 25-APR-15 19:35:00 to 25-APR-15 19:35:00 (EST-5)
Location: LANCASTER
Magnitude: 1.75 
Reported by: Public

Golf ball size was reported in Lancaster by the public.

Hail in BOYLE, KENTUCKY
From 25-APR-15 19:16:00 to 25-APR-15 19:16:00 (EST-5)
Location: DANVILLE
Magnitude: 3.00 
Reported by: Public

Hail stones as large as 3 were reported by the public and confirmed by social media pictures in Danville.

Hail in MERCER, KENTUCKY
From 25-APR-15 19:07:00 to 25-APR-15 19:07:00 (EST-5)
Location: NEVADA
Magnitude: 2.00 
Reported by: Public

Hen egg size hail stones were reported by the public southwest of Harrodsburg.

Thunderstorm Wind in ADAIR, KENTUCKY
From 25-APR-15 19:25:00 to 25-APR-15 19:25:00 (CST-6)
Location: COLUMBIA LUDOT ARPT
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Law enforcement reported one large tree down.

Thunderstorm Wind in ADAIR, KENTUCKY
From 25-APR-15 19:38:00 to 25-APR-15 19:38:00 (CST-6)
Location: MONTPELIER
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency manager reported numerous trees, power lines and power poles down done on Old Montpelier Rd. Roof damage occurred to several homes. A few barns were pushed out and silos knocked down due to severe thunderstorm winds.

Hail in NELSON, KENTUCKY
From 25-APR-15 18:17:00 to 25-APR-15 18:17:00 (EST-5)
Location: EARLY TIMES
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

A retired NWS employee reported penny size hail.

Thunderstorm Wind in EDMONSON, KENTUCKY
From 25-APR-15 18:21:00 to 25-APR-15 18:21:00 (CST-6)
Location: HUFF
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The county Emergency Manager reported 15 to 20 trees down across the county due to severe thunderstorm winds.

Hail in NELSON, KENTUCKY
From 25-APR-15 18:23:00 to 25-APR-15 18:23:00 (EST-5)
Location: NAZARETH
Magnitude: 1.50 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported that hail as large as 1.5 inches in diameter fell.

Thunderstorm Wind in EDMONSON, KENTUCKY
From 25-APR-15 18:12:00 to 25-APR-15 18:12:00 (CST-6)
Location: HUFF
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported a measured wind gust of 52 kts from a personal weather station in Huff.

Thunderstorm Wind in EDMONSON, KENTUCKY
From 25-APR-15 18:30:00 to 25-APR-15 18:30:00 (CST-6)
Location: OLLIE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Park/Forest Service

Mammoth Cave National Park reported several large trees downed, the largest of which occurred on Houchins Ferry Rd north of the Green River. Measuring instruments nearby measured a 47 mph wind gust.

Tornado in EDMONSON, KENTUCKY
From 25-APR-15 20:12:00 to 25-APR-15 20:14:00 (CST-6)
Location: HUFF
Tornado F-scale: EF2
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A narrow tornado developed quickly just west of 3667 Grassland Black Gold Rd (Highway 1365) and snapped a few softwood and few wood large limbs. It then grew in width and intensity as it crossed Highway 1365 and uprooted, snapped and twisted over 200 trees in a heavily forested area around a deep karst ravine. A drone was used to pinpoint the exact storm end point which was about 100 yards east of Highway 1365 near a farmer's field.

Hail in JEFFERSON, KENTUCKY
From 25-APR-15 18:46:00 to 25-APR-15 18:46:00 (EST-5)
Location: JEFFERSONTOWN
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

An off-duty NWS employee reported quarter size hail near Jeffersontown.

Thunderstorm Wind in EDMONSON, KENTUCKY
From 25-APR-15 18:32:00 to 25-APR-15 18:32:00 (CST-6)
Location: BROWNSVILLE
Magnitude: 52.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A trained spotter reported wind gusts 50 to 55 mph.

Thunderstorm Wind in CLINTON, KENTUCKY
From 25-APR-15 20:04:00 to 25-APR-15 20:04:00 (CST-6)
Location: WAGO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The county Emergency Manager reported numerous trees down across the county.

Thunderstorm Wind in RUSSELL, KENTUCKY
From 25-APR-15 19:43:00 to 25-APR-15 19:43:00 (CST-6)
Location: ESTO
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: AWOS

The Russell County Airport AWOS (KY24) measured a 53 kt wind gust.

Hail in CUMBERLAND, KENTUCKY
From 25-APR-15 19:57:00 to 25-APR-15 19:57:00 (CST-6)
Location: MODOC
Magnitude: 0.88 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The county Emergency Manager reported nickel size hail.

Hail in NELSON, KENTUCKY
From 25-APR-15 18:35:00 to 25-APR-15 18:35:00 (EST-5)
Location: BLOOMFIELD
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported penny size hail near Bloomfield.

Hail in MEADE, KENTUCKY
From 25-APR-15 17:38:00 to 25-APR-15 17:38:00 (EST-5)
Location: BRANDENBURG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Quarter size hail was reported near Brandenburg.

Hail in HARDIN, KENTUCKY
From 25-APR-15 18:41:00 to 25-APR-15 18:41:00 (EST-5)
Location: ELIZABETH TOWN
Magnitude: 0.88 
Reported by: Public

The public reported nickel size hail in Elizabethtown.

Thunderstorm Wind in RUSSELL, KENTUCKY
From 25-APR-15 19:40:00 to 25-APR-15 19:40:00 (CST-6)
Location: GUM CORNERS
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Emergency management reported downed trees blocking Highway 55.

Hail in MEADE, KENTUCKY
From 25-APR-15 17:30:00 to 25-APR-15 17:30:00 (EST-5)
Location: BRANDENBURG
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

The public reported quarter size hail in Brandenburg.

Hail in NELSON, KENTUCKY
From 25-APR-15 18:18:00 to 25-APR-15 18:18:00 (EST-5)
Location: EARLY TIMES
Magnitude: 1.00 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Employee

Retired NWS employee reported quarter size hail near Bardstown.

Hail in BOYLE, KENTUCKY
From 25-APR-15 19:15:00 to 25-APR-15 19:15:00 (EST-5)
Location: WELLS LNDG
Magnitude: 2.50 
Property damage: 80.00K
Reported by: Public

Tennis ball size hail fell on the north side of Danville, as reported by the public.

Hail in JEFFERSON, KENTUCKY
From 25-APR-15 18:44:00 to 25-APR-15 18:44:00 (EST-5)
Location: WINDY HILLS
Magnitude: 0.75 
Reported by: Public

Public report of penny size hail in northeast Louisville, near Lyndon.

Hail in JEFFERSON, KENTUCKY
From 25-APR-15 18:53:00 to 25-APR-15 18:53:00 (EST-5)
Location: WOODLAND HILLS
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public reported penny size hail near Middletown.

Hail in WASHINGTON, KENTUCKY
From 25-APR-15 18:52:00 to 25-APR-15 18:52:00 (EST-5)
Location: MACKVILLE
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Public report of penny size hail in Mackville.

Hail in MEADE, KENTUCKY
From 25-APR-15 17:31:00 to 25-APR-15 17:31:00 (EST-5)
Location: BRANDENBURG
Magnitude: 0.75 
Reported by: Public

Public reported penny size hail near Brandenburg.