Numerous strong to severe thunderstorms occurred in the warm sector of a low pressure system over central Missouri. The air mass in the warm sector was very unstable, with afternoon mixed-layer cape values in the 2500 to 4000 j/kg range. A 65 to 75 knot mid level jet was located across Arkansas, with the nose of the jet moving into western Kentucky. This feature enhanced the lift and strong deep-layer shear already in place, creating an environment very favorable for supercells and tornadoes. A 40 to 55 knot low level jet across eastern Arkansas moved into western Kentucky during the evening, resulting in isolated tornadoes and widespread damaging winds.

Funnel Cloud in GIBSON, INDIANA
From 25-MAY-11 18:58:00 to 25-MAY-11 18:58:00 (CST-6)
Location: EAST MT CARMEL
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Funnel Cloud in GIBSON, INDIANA
From 25-MAY-11 19:25:00 to 25-MAY-11 19:25:00 (CST-6)
Location: BUCKSKIN
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Funnel Cloud in SPENCER, INDIANA
From 25-MAY-11 19:51:00 to 25-MAY-11 19:51:00 (CST-6)
Location: ROCKPORT
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Tornado in PIKE, INDIANA
From 25-MAY-11 20:35:00 to 25-MAY-11 20:37:00 (EST-5)
Location: COE
Tornado F-scale: EF2
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Thousands of large trees were snapped or uprooted on mine reclamation land north of County Road 900. Peak winds were estimated near 120 mph.

Thunderstorm Wind in VANDERBURGH, INDIANA
From 25-MAY-11 19:15:00 to 25-MAY-11 19:25:00 (CST-6)
Location: ST JOSEPH
Magnitude: 70.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Widespread damage to trees and power lines occurred in Evansville and surrounding suburbs. Power poles were down. Much of the west side of the metro area was without power. A wind gust to 75 mph was measured by the automated observing system at the Evansville airport.

Thunderstorm Wind in WARRICK, INDIANA
From 25-MAY-11 19:30:00 to 25-MAY-11 19:30:00 (CST-6)
Location: BOONVILLE
Magnitude: 61.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A large tree fell on a home, injuring one person. Multiple large trees were down on the south side of town.

Thunderstorm Wind in GIBSON, INDIANA
From 25-MAY-11 19:08:00 to 25-MAY-11 19:08:00 (CST-6)
Location: PRINCETON
Magnitude: 61.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Wind gusts were estimated from 60 to 70 mph by a trained spotter.

Thunderstorm Wind in SPENCER, INDIANA
From 25-MAY-11 20:10:00 to 25-MAY-11 20:10:00 (CST-6)
Location: ROCKPORT
Magnitude: 54.00 MG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Funnel Cloud in POSEY, INDIANA
From 25-MAY-11 19:00:00 to 25-MAY-11 19:00:00 (CST-6)
Location: ST PHILIP
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Thunderstorm Wind in WARRICK, INDIANA
From 25-MAY-11 19:24:00 to 25-MAY-11 19:26:00 (CST-6)
Location: ELBERFELD
Magnitude: 61.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Several large trees were uprooted, and dozens of large tree limbs were down throughout town. Some shingles were blown off the fire station. A large tree fell on a garage.

Tornado in PIKE, INDIANA
From 25-MAY-11 20:36:00 to 25-MAY-11 20:42:00 (EST-5)
Location: COE
Tornado F-scale: EF1
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Several dozen trees were uprooted or snapped. Peak winds were estimated near 95 mph. The average path width was 40 yards.

Tornado in POSEY, INDIANA
From 25-MAY-11 19:09:00 to 25-MAY-11 19:10:00 (CST-6)
Location: CYNTHIANA
Tornado F-scale: EF2
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado started north of St. Wendell, where trees were damaged along with a machine shed. As it moved across Highway 65, high-tension power lines were taken down. Peak winds were estimated near 125 mph. The tornado continued moving northeast into Vanderburgh County.

Tornado in VANDERBURGH, INDIANA
From 25-MAY-11 19:10:00 to 25-MAY-11 19:13:00 (CST-6)
Location: NISBET
Tornado F-scale: EF2
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado entered Vanderburgh County from Posey County and remained in Vanderburgh County for just a short time. Structures were destroyed at a small airfield. The tornado crossed Interstate 64 north of Nisbet into Gibson County. Peak winds were estimated near 125 mph. The average path width was 100 yards.

Tornado in GIBSON, INDIANA
From 25-MAY-11 19:13:00 to 25-MAY-11 19:25:00 (CST-6)
Location: ST JAMES
Tornado F-scale: EF2
Property damage: 100.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado crossed into Gibson County from Vanderburgh County near Interstate 64. At a farm north of Interstate 64, a house was severely damaged and four barns were destroyed. In Haubstadt, power poles were snapped off at the base. Peak winds were estimated near 125 mph. The average path width was 100 yards.

Thunderstorm Wind in POSEY, INDIANA
From 25-MAY-11 18:55:00 to 25-MAY-11 18:55:00 (CST-6)
Location: MT VERNON
Magnitude: 79.00 MG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: County Official

Trees were blown down. Wind gusts were measured to 91 mph.

Thunderstorm Wind in SPENCER, INDIANA
From 25-MAY-11 19:52:00 to 25-MAY-11 19:54:00 (CST-6)
Location: ROCKPORT
Magnitude: 56.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Trees and power lines were blown down in Rockport. Roofs were damaged in Grandview, and fire station doors were damaged.

Tornado in PIKE, INDIANA
From 25-MAY-11 20:39:00 to 25-MAY-11 20:44:00 (EST-5)
Location: WINSLOW
Tornado F-scale: EF1
Property damage: 20.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Several dozen trees were uprooted or snapped. Some trees had trunks of two feet in diameter. Peak winds were estimated near 95 mph. The average path width was 35 yards.