A mesoscale convective system intensified over the Lower Ohio Valley as it interacted with a moist and increasingly unstable atmosphere. The combination of daytime heating and an unstable southerly wind flow contributed to the intensification of the system, which exhibited bowing structures at times. Westerly winds of 40 to 45 knots in the mid levels of the atmosphere supported the acceleration of the bow echo across the region. Isolated wind damage accompanied the system.

Thunderstorm Wind in MCCRACKEN, KENTUCKY
From 27-JUN-11 11:01:00 to 27-JUN-11 11:10:00 (CST-6)
Location: MAXON
Magnitude: 52.00 EG
Property damage: 70.00K
Crop damage: 0.00K
Reported by: NWS Employee

A National Weather Service employee estimated a wind gust to 60 mph along U.S. Highway 60 just west of Paducah. At least a dozen trees were blown down in the Paducah area. One tree landed across a roadway. Another tree landed on a house in Paducah. Large tree limbs were blown down on the south side of Paducah. Some limbs were down on cars. Widespread power outages were reported. At the Paducah high school, a fence was damaged at the tennis courts. Track and field equipment was damaged.

Heavy Rain in DAVIESS, KENTUCKY
From 27-JUN-11 11:40:00 to 27-JUN-11 12:12:00 (CST-6)
Location: STANLEY
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Ponding of water was reported on streets in Owensboro. The storm dumped 1.89 inches at Stanley. About two inches was estimated to have fallen at Owensboro. Most of the rain fell within 30 minutes.

Lightning in HOPKINS, KENTUCKY
From 27-JUN-11 12:35:00 to 27-JUN-11 12:35:00 (CST-6)
Location: MADISONVILLE
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Sporadic power outages occurred due to lightning strikes.

Thunderstorm Wind in LIVINGSTON, KENTUCKY
From 27-JUN-11 11:14:00 to 27-JUN-11 11:14:00 (CST-6)
Location: SMITHLAND
Magnitude: 56.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Large tree limbs were down. Siding was blown off a house.

Thunderstorm Wind in DAVIESS, KENTUCKY
From 27-JUN-11 11:50:00 to 27-JUN-11 11:58:00 (CST-6)
Location: OWENSBORO
Magnitude: 53.00 MG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Numerous large tree limbs were blown down on the west side of the city, where a wind gust of 61 mph was measured. In downtown Owensboro, a wind gust to 60 mph was measured.

Thunderstorm Wind in MUHLENBERG, KENTUCKY
From 27-JUN-11 12:32:00 to 27-JUN-11 12:32:00 (CST-6)
Location: DUNMOR
Magnitude: 52.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Two trees were blown down on Route 973 on the northwest side of Dunmor.

Thunderstorm Wind in MCCRACKEN, KENTUCKY
From 27-JUN-11 10:59:00 to 27-JUN-11 10:59:00 (CST-6)
Location: (PAH)BARKLEY ARPT PA
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: ASOS

A wind gust to 62 mph was measured at the National Weather Service at Barkley Regional Airport.

Thunderstorm Wind in BALLARD, KENTUCKY
From 27-JUN-11 10:46:00 to 27-JUN-11 10:46:00 (CST-6)
Location: KEVIL
Magnitude: 52.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two trees were blown down on a rural road.