The following events were reported: Flash Flood, Flood, Hail, Lightning, Thunderstorm Wind. These occurred near station USW00093819, approximately 22.7847 km away, between 2010-06-22 00:24:00 and 2010-06-23 06:00:00. The events included records with hailstones measuring 46.839999999999996 inches. The flood was caused by Dam / Levee Break, Heavy Rain. Thankfully, no injuries or fatalities were reported. The events caused property damage valued at 3521500.0 and crop damage of 3000.0. Episode Narrative: During the afternoon and evening hours on June 21st a combination of old thunderstorm activity that moved in from upstream of Indiana, along with new development behind the previous activity occurred as a result of upper level atmospheric support and ample surface heating. This led to a very to extremely unstable air mass...with MLCAPES exceeding 3500 j/kg.||By early evening discrete cells developed along a west to east oriented boundary that extended roughly from near the Missouri/Iowa border eastward through central Illinois and then to just north of Lafayette, Indiana. Radar data showed several of these storm cells having supercellular structure/rotation as they encountered enhanced low level helicity (most simply put, helicity is the amount of spin to a parcel of air) along the boundary. Upstream wind profile data at Davenport, Iowa showed favorable veering of wind with height for storm rotation. Upper air data from the 00z (7 PM EST) sounding from the Central Illinois National Weather Service office showed a low lifted condensation level of 3000 ft and steep low level lapse rates, which lent support to the storms. Storms forming upstream of Indiana moved into the state as the day progressed. During the afternoon and evening hours on June 21st a combination of old thunderstorm activity that moved in from upstream of Indiana, along with new development behind the previous activity occurred as a result of upper level atmospheric support and ample surface heating. Event Narrative: Thunderstorm winds blew down a large tree and power lines in the vicinity of Carroll Road and 96th Street. The tree had approximately a 4-foot diameter base. Heavy rainfall caused minor flooding of Interstate 69 near Exit 3. Heavy rainfall caused significant ponding of water over the west bound lane of 116th Street east of Hague and Cumberland Roads. An estimated 4 to 6 inches of water was present. A dam break upstream, along with heavy rainfall, caused flooding along the East Fork White Lick Creek in the Mooresville, Indiana area. As of mid to late afternoon on June 22nd water was up to business properties and crossing Old State Road 67. Property damage estimate is greatly estimated. Newspaper and broadcast media reported a lightning strike was the suspected cause of a fire of a shopping strip in western Carmel, Indiana. Firefighters think lightning struck the El Rodeo restaurant, located in the 12-unit Weston Shoppes, and quickly spread across the shopping center. The strip mall owner said continuing lightning strikes prevented firefighters from hosing the flames from their ladder trucks, hampering their efforts to save the building. Damage estimates, not including each store's inventory, could be between 3 and 4 million dollars. Firefighters were still on the scene 8 1/2 hours later. Plainfield Police evacuated 25 people on a voluntary basis from the Crystal Bay neighborhood due to flooding. Several roads in the nearby area were flooded and closed to traffic:  Sugar Grove (700 E), Township Line Road between Dan Jones and Smith Road, 300 South between Vestal and Center Street, South Center Street between Hadley Road and I-70, 2600 East Main Street, and Vestal/800 East. Time of event is estimated. Heavy rainfall draining into White Lick Creek caused the creek to overflow. A mobile home park near 600 East and 100 North was in the process of evacuation due to concern of a possible dam break. Damage estimate is greatly estimated. A privately owned earthen dam was breached at Indianhead Lake as a result of very heavy rainfall runoff. About 40 homes and 16 mobile homes were evacuated, but by afternoon most of the residents were allowed to return. Officials decided to drain the 4-acre lake behind the Indianhead dam as a result of the damage and in case additional rainfall/runoff occurred that might produce further damage and downstream flooding. Damage estimates are greatly estimated. Floodwaters topped nearby Jeto Lake's dam but it held. Low-lying portions of Indiana 136 and Interstate 74 were briefly flooded. Rainfall runoff was reported to be flowing over the road at U. S. 31 and Stop 12. A creek was reported to be badly overflowing into a backyard near the intersection of West 21st and North Raceway Road. Thunderstorm winds blew at an estimated 50 to 60 MPH at/near the intersection of 131st and Hazel Dell Parkway. Torrential rainfall accompanied these winds. Thunderstorm winds were clocked at 46 MPH with gusts to 76 MPH at the intersection of 96th Street and Olio Road in McCordsville, IN....just northeast of Indianapolis. Thunderstorm winds blew down a healthy tree/tree limb at its 10-inch diameter base. Thunderstorm winds blew down power lines at the intersection of 75th Street and State Road 67.