A quasi-linear convective system moved across an unstable airmass and produced widespread severe weather.

Thunderstorm Wind in UNION, INDIANA
From 23-MAY-11 17:57:00 to 23-MAY-11 18:01:00 (EST-5)
Location: LIBERTY
Magnitude: 70.00 EG
Property damage: 65.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

Large trees were reported down with one of them down on a house due to damaging thunderstorm winds. Sheds were tipped over, a roof was peeled from a garage, a barn roof was peeled off with debris strewn for at least a half of a mile, a large grain silo was dented in, and a heavy wagon was rolled in excess of one hundred feet due to the winds.

Tornado in RIPLEY, INDIANA
From 23-MAY-11 17:43:00 to 23-MAY-11 17:45:00 (EST-5)
Location: SUNMAN
Tornado F-scale: EF0
Property damage: 5.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado initially touched down in Ripley County at 1743 near County Road 900.  Numerous large trees were down in different directions and at least one power pole was snapped in this location.  The tornado then continued to the northeast and passed into Dearborn County at 1745 just northwest of Tangman Road.  Along Tangman Road, large trees were down in different directions, a metal roof was torn off of a large pole barn, and a barn was destroyed due to the tornado.  A short distance to the northeast, trees were snapped near Hill Road.  The tornado lifted in Dearborn County at 1747.  Damage estimates for Ripley County were five thousand dollars.  Damage estimates for Dearborn County were forty thousand dollars.  Maximum estimated wind speed based on damage was around eighty miles per hour.  The tornado was on the ground for 1.48 miles in Ripley County and 1.60 miles in Dearborn County.  The entire path length of the tornado was 3.08 miles.

Thunderstorm Wind in RIPLEY, INDIANA
From 23-MAY-11 17:34:00 to 23-MAY-11 17:38:00 (EST-5)
Location: NAPOLEON
Magnitude: 50.00 EG
Property damage: 25.00K
Crop damage: 0.00K
Reported by: Law Enforcement

A barn was destroyed and numerous trees were reported down due to damaging thunderstorm winds.

Hail in RIPLEY, INDIANA
From 23-MAY-11 17:30:00 to 23-MAY-11 17:34:00 (EST-5)
Location: HOLTON
Magnitude: 1.00 
Reported by: Trained Spotter

Thunderstorm Wind in DEARBORN, INDIANA
From 23-MAY-11 17:55:00 to 23-MAY-11 17:59:00 (EST-5)
Location: MOORES HILL
Magnitude: 50.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Amateur Radio

Trees and large tree limbs were reported down due to damaging thunderstorm winds.

Thunderstorm Wind in DEARBORN, INDIANA
From 23-MAY-11 17:51:00 to 23-MAY-11 17:55:00 (EST-5)
Location: GUILFORD
Magnitude: 56.00 EG
Property damage: 3.00K
Crop damage: 0.00K
Reported by: Broadcast Media

Trees were reported down along a road due to damaging thunderstorm winds.

Thunderstorm Wind in WAYNE, INDIANA
From 23-MAY-11 17:52:00 to 23-MAY-11 17:56:00 (EST-5)
Location: CENTERVILLE
Magnitude: 50.00 EG
Property damage: 2.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Two trees were reported down due to damaging thunderstorm winds.

Thunderstorm Wind in WAYNE, INDIANA
From 23-MAY-11 17:59:00 to 23-MAY-11 18:03:00 (EST-5)
Location: FOUNTAIN CITY
Magnitude: 50.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

Trees were reported down due to damaging thunderstorm winds. Siding, window, and garage damage occurred to a house as well due to the winds.

Thunderstorm Wind in SWITZERLAND, INDIANA
From 23-MAY-11 17:45:00 to 23-MAY-11 17:49:00 (EST-5)
Location: VEVAY
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trees were reported down due to damaging thunderstorm winds.

Thunderstorm Wind in WAYNE, INDIANA
From 23-MAY-11 17:48:00 to 23-MAY-11 17:52:00 (EST-5)
Location: HAGERSTOWN
Magnitude: 50.00 EG
Property damage: 1.00K
Crop damage: 0.00K
Reported by: Emergency Manager

A tree was reported down on a road due to damaging thunderstorm winds.

Thunderstorm Wind in FAYETTE, INDIANA
From 23-MAY-11 17:40:00 to 23-MAY-11 17:44:00 (EST-5)
Location: CONNERSVILLE
Magnitude: 50.00 EG
Property damage: 16.00K
Crop damage: 0.00K
Reported by: Law Enforcement

Trailers were overturned due to damaging thunderstorm winds.

Tornado in DEARBORN, INDIANA
From 23-MAY-11 17:45:00 to 23-MAY-11 17:47:00 (EST-5)
Location: WEISBURG
Tornado F-scale: EF0
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

The tornado initially touched down in Ripley County at 1743 near County Road 900.  Numerous large trees were down in different directions and at least one power pole was snapped in this location.  The tornado then continued to the northeast and passed into Dearborn County at 1745 just northwest of Tangman Road.  Along Tangman Road, large trees were down in different directions, a metal roof was torn off of a large pole barn, and a barn was destroyed due to the tornado.  A short distance to the northeast, trees were snapped near Hill Road.  The tornado lifted in Dearborn County at 1747.  Damage estimates for Ripley County were five thousand dollars.  Damage estimates for Dearborn County were forty thousand dollars.  Maximum estimated wind speed based on damage was around eighty miles per hour.  The tornado was on the ground for 1.48 miles in Ripley County and 1.60 miles in Dearborn County.  The entire path length of the tornado was 3.08 miles.