During the evening hours on the 29th of January, low pressure across the southern plains began to intensify and move towards the western Great Lakes. A squall line developed during the evening hours and strengthened after midnight as it moved into western Kentucky and southern Illinois. This line, fueled by unseasonably mild temperatures, dewpoints around 60, and an intense low level jet of 80kt at 850mb, spawned one of the largest January tornado outbreaks on record across the Lower Ohio Valley. Two tornadoes were surveyed across southern Indiana. In addition, strong synoptic southerly winds right ahead and along this line produced localized wind damage.

Thunderstorm Wind in CLARK, INDIANA
From 30-JAN-13 04:07:00 to 30-JAN-13 04:07:00 (EST-5)
Location: BORDEN
Magnitude: 56.00 EG
Property damage: 10.00K
Crop damage: 0.00K
Reported by: Public

Strong winds associated with a line of storms shifted a barn off of its foundation. Portions of several sheds were blown several hundred feet. Numerous trees were toppled.

Thunderstorm Wind in WASHINGTON, INDIANA
From 30-JAN-13 03:15:00 to 30-JAN-13 03:15:00 (EST-5)
Location: HARRISTOWN
Magnitude: 65.00 EG
Property damage: 50.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A storm survey confirmed that straight line winds estimated at 75 mph damaged the roof of a double wide trailer along State Highway 160 east of Salem. One barn was destroyed and another barn was damaged. This downburst covered an area roughly three tenths of a mile long and around 100 feet wide.

Thunderstorm Wind in PERRY, INDIANA
From 30-JAN-13 02:02:00 to 30-JAN-13 02:02:00 (EST-5)
Location: PERRY CO ARPT
Magnitude: 56.00 EG
Property damage: 20.00K
Crop damage: 0.00K
Reported by: Emergency Manager

The Perry county emergency manager relayed a report of structural damage to a house. Damage included several walls down on a garage. Some field tanks were also overturned. Several trees were toppled.

Tornado in ORANGE, INDIANA
From 30-JAN-13 01:47:00 to 30-JAN-13 01:48:00 (EST-5)
Location: PROSPECT
Tornado F-scale: EF0
Property damage: 25.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

An EF-1 tornado damaged portions of a forest and a residence located just over 3 miles north of West Baden Springs, Indiana.  Maximum wind speeds estimated around 85 to 95 mph accompanied this twister, which had a width of 75 yards and a length of 400 yards. EF-1 damage was surveyed at one home, where the roof was badly damaged.  The porch of this home was thrown several feet.  Several small twigs were driven through this resident's siding.

Thunderstorm Wind in CLARK, INDIANA
From 30-JAN-13 04:17:00 to 30-JAN-13 04:17:00 (EST-5)
Location: OTISCO
Magnitude: 52.00 EG
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Trained Spotter

A spotter estimated winds of 50 to 60 mph.

Tornado in HARRISON, INDIANA
From 30-JAN-13 04:17:00 to 30-JAN-13 04:18:00 (EST-5)
Location: SUGAR GROVE
Tornado F-scale: EF0
Property damage: 40.00K
Crop damage: 0.00K
Reported by: NWS Storm Survey

A weak EF-0 tornado developed 3.2 miles east of Elizabeth, Indiana. It stayed on the ground for nearly 3 miles while crossing the Ohio River and entering southwestern Louisville, Kentucky. While in Indiana, this tornado covered around seven tenths of a mile. In Indiana, four homes and two barns were damaged along Highway 111. The porch of one home was lifted and thrown 30 feet. The walls of one of the barns collapsed in multiple directions. Several trees were downed along the banks of the Ohio River.