A cold front with strong upper level support collided with a very moist air mass over the lower Ohio Valley. Widespread severe thunderstorms resulted, along with three confirmed tornadoes in south central Indiana. The severe storms and tornadoes produced property damage, widespread areas with downed trees and power lines, and some large hail.

Thunderstorm Wind in CLARK, INDIANA
From 18-OCT-07 20:55:00 to 18-OCT-07 21:00:00 (EST-5)
Location: CHARLESTOWN
Magnitude: 70.00 EG
Property damage: 70.00K
Crop damage: 5.00K
Reported by: Trained Spotter

Windows were blown out of a house. A carport was blown down. Thunderstorm winds picked up and moved a trailer. Two barns were destroyed.

Thunderstorm Wind in CLARK, INDIANA
From 18-OCT-07 21:02:00 to 18-OCT-07 21:02:00 (EST-5)
Location: NEW WASHINGTON
Magnitude: 60.00 EG
Property damage: 5.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A carport was destroyed and trees were downed.

Hail in DUBOIS, INDIANA
From 18-OCT-07 16:31:00 to 18-OCT-07 16:31:00 (EST-5)
Location: JASPER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Thunderstorm Wind in FLOYD, INDIANA
From 18-OCT-07 21:00:00 to 18-OCT-07 21:00:00 (EST-5)
Location: GALENA
Magnitude: 65.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Numerous trees were downed by a thunderstorm microburst.

Thunderstorm Wind in HARRISON, INDIANA
From 18-OCT-07 21:51:00 to 18-OCT-07 21:51:00 (EST-5)
Location: CORYDON
Magnitude: 60.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Broadcast Media

A tree was blown on to a house in Corydon.

Thunderstorm Wind in HARRISON, INDIANA
From 18-OCT-07 17:42:00 to 18-OCT-07 17:42:00 (EST-5)
Location: LANESVILLE
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

One half inch hail was also reported in Lanesville with this storm.

Thunderstorm Wind in HARRISON, INDIANA
From 18-OCT-07 21:51:00 to 18-OCT-07 21:51:00 (EST-5)
Location: PALMYRA
Magnitude: 52.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees were blown on to vehicles in Palmyra.

Tornado in PERRY, INDIANA
From 18-OCT-07 18:34:00 to 18-OCT-07 18:45:00 (EST-5)
Location: CANNELTON
Tornado F-scale: EF1
Property damage: 0.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A thunderstorm that had earlier produced a tornado in Daviess and Hancock Counties in Kentucky crossed the Ohio River near Hawesville, Kentucky.  It produced an EF-1 tornado which touched down just northeast of Cannelton in Perry County, Indiana. Witnesses reported seeing a visible tornado intermittently lifting and touching back down as it moved  northeast across the county, snapping and uprooting trees along its path. Most of the damage occurred near a Girl Scout camp on Cann Heights Road about two and a half miles northeast of Cannelton. The tornado ended near Plock Knob in southern Perry County, but the parent storm continued to produce intermittent wind damage across the southern part of the county.

Thunderstorm Wind in HARRISON, INDIANA
From 18-OCT-07 17:35:00 to 18-OCT-07 17:36:00 (EST-5)
Location: CENTRAL
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Numerous trees were downed. Half inch hail fell.

Thunderstorm Wind in CRAWFORD, INDIANA
From 18-OCT-07 19:21:00 to 18-OCT-07 19:23:00 (EST-5)
Location: TOWER
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees were downed.

Thunderstorm Wind in HARRISON, INDIANA
From 18-OCT-07 21:55:00 to 18-OCT-07 21:56:00 (EST-5)
Location: CRANDALL
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees were downed.

Thunderstorm Wind in PERRY, INDIANA
From 18-OCT-07 18:35:00 to 18-OCT-07 18:40:00 (EST-5)
Location: TELL CITY
Magnitude: 60.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees and power lines were downed. Gas lines were ruptured.

Tornado in CLARK, INDIANA
From 18-OCT-07 21:03:00 to 18-OCT-07 21:09:00 (EST-5)
Location: VESTA
Tornado F-scale: EF3
Property damage: 1.00M
Crop damage: 10.00K
Reported by: NWS Storm Survey

An EF-3 tornado touched down near Bull Creek Road, and was on the ground intermittently before lifting near the end of Fulton Road, just short of the Ohio River. The greatest damage occurred about 10 miles east northeast of Charlestown, where a recently constructed two story home was blown off its basement and destroyed. Two large barns, a stable, a silo, and four vehicles were also damaged or destroyed on the same property. Ten other homes were damaged, with four of them receiving severe damage. Five barns and several other outbuildings were destroyed. The tornado left scour marks for nearly one half mile through corn and bean fields between Bull Creek Road and Church Road just after its initial touchdown.

Tornado in DUBOIS, INDIANA
From 18-OCT-07 20:27:00 to 18-OCT-07 20:30:00 (EST-5)
Location: ST MARKS
Tornado F-scale: EF1
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The door of a house was blown out about four miles northeast of Ferdinand, near the start of the tornado path. A barn was damaged about a half mile south of Kyana, near the end of the damage path. Over 100 large oak trees were snapped off or uprooted in the Ferdinand Forest.

Thunderstorm Wind in HARRISON, INDIANA
From 18-OCT-07 17:26:00 to 18-OCT-07 17:27:00 (EST-5)
Location: NEW AMSTERDAM
Magnitude: 70.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

Trees were downed. Public estimated an 80 mph wind gust.

Hail in DUBOIS, INDIANA
From 18-OCT-07 16:40:00 to 18-OCT-07 16:40:00 (EST-5)
Location: JASPER
Magnitude: 0.75 
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

Penny size hail covered the ground.