Warm humid air overspread the Ohio Valley ahead a a strong closed low located over Missouri. By late afternoon on the 25th, discrete supercells over western Kentucky were beginning to congeal into a squall line. Later in the evening and throughout the early morning hours, a squall line crossed central Kentucky. Widespread wind damage occurred along and west of Interstate 65, with isolated damage east of the Interstate.  A portion of this line of storms developed into a bow echo that brought damage along the Kentucky Tennessee border.

Thunderstorm Wind in OHIO, KENTUCKY
From 25-MAY-11 20:41:00 to 25-MAY-11 20:41:00 (CST-6)
Location: CENTERTOWN
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree toppled onto a home, damaging its roof.

Thunderstorm Wind in OHIO, KENTUCKY
From 25-MAY-11 20:46:00 to 25-MAY-11 20:46:00 (CST-6)
Location: FORDSVILLE
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter estimated a 70 mph wind gust.

Thunderstorm Wind in BRECKINRIDGE, KENTUCKY
From 25-MAY-11 20:50:00 to 25-MAY-11 20:50:00 (CST-6)
Location: HARDINSBURG
Magnitude: 50.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in JEFFERSON, KENTUCKY
From 25-MAY-11 22:15:00 to 25-MAY-11 22:36:00 (EST-5)
Location: LOUISVILLE
Magnitude: 56.00 EG
Property damage: 40.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Widespread damage developed over the Louisville metropolitan area as a result of a  severe squall line. Dozens of trees were downed across the urban area, especially in Prospect and along River Road east of downtown.  Winds up to 70 mph were estimated by a trained spotter in the Middletown subdivision.

Thunderstorm Wind in SHELBY, KENTUCKY
From 25-MAY-11 22:40:00 to 25-MAY-11 22:40:00 (EST-5)
Location: FINCHVILLE
Magnitude: 53.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Mesonet

Thunderstorm Wind in SIMPSON, KENTUCKY
From 25-MAY-11 22:00:00 to 25-MAY-11 22:00:00 (CST-6)
Location: STOWERS
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported debris from a roof and several trees downed near the intersection of state highways  23 and 621.

Thunderstorm Wind in LOGAN, KENTUCKY
From 25-MAY-11 21:46:00 to 25-MAY-11 21:46:00 (CST-6)
Location: RUSSELLVILLE
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

County dispatchers noted that several trees were downed with scattered power outages countywide.

Thunderstorm Wind in SIMPSON, KENTUCKY
From 25-MAY-11 22:12:00 to 25-MAY-11 22:12:00 (CST-6)
Location: FRANKLIN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter reported damage to a barn along with several downed trees.

Thunderstorm Wind in WARREN, KENTUCKY
From 25-MAY-11 22:10:00 to 25-MAY-11 22:10:00 (CST-6)
Location: BOWLING GREEN
Magnitude: 50.00 MG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Trained Spotter

An apartment building had some shingles ripped from the roof and scattered about the courtyard. Several shutters were also removed. The ASOS mesonet at Bowling Green Airport measured a 58 mph gust.

Thunderstorm Wind in BARREN, KENTUCKY
From 25-MAY-11 22:42:00 to 25-MAY-11 22:42:00 (CST-6)
Location: AUSTIN
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Several trees were downed near Austin.

Thunderstorm Wind in WARREN, KENTUCKY
From 25-MAY-11 22:03:00 to 25-MAY-11 22:03:00 (CST-6)
Location: ROCKFIELD
Magnitude: 56.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Many hardwood trees downed near Bogle Road.

Thunderstorm Wind in GREEN, KENTUCKY
From 25-MAY-11 23:09:00 to 25-MAY-11 23:09:00 (CST-6)
Location: GREENSBURG
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several trees were downed across the county.

Thunderstorm Wind in SHELBY, KENTUCKY
From 25-MAY-11 22:55:00 to 25-MAY-11 22:55:00 (EST-5)
Location: SHELBYVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Several power outages developed across Shelbyville. A spotter estimated a 60 mph wind gust.