The following events were reported: Hail, Thunderstorm Wind. These occurred near station USW00014821, approximately 27.3112 km away, between 2012-06-29 15:35:00 and 2012-06-29 16:44:00. The events included records with hailstones measuring 58.735200000000006 inches.The events resulted in 1 injuries and 0 fatalities. The events caused property damage valued at 290000.0 and crop damage of 0.0. Episode Narrative: A very hot and potentially unstable airmass interacted with northwesterly flow aloft to produce a derecho across northern Illinois. This derecho then moved rapidly east southeast across the Ohio Valley producing widespread straight line wind damage. This rare derecho affected nearly every county in southeast Indiana, northern Kentucky, and southwestern Ohio with severe winds. This caused widespread power outages that lasted several days in some locations. Isolated large hail also occurred with the stronger portions of the system. A very hot and potentially unstable airmass interacted with northwesterly flow aloft to produce a derecho across northern Illinois. Event Narrative: Multiple large tree limbs were downed and siding damage occurred to buildings due to thunderstorm winds. A large tree was downed on a pickup truck and siding damage occurred to a house due to thunderstorm winds. Trees were downed on The Ohio State University campus due to damaging thunderstorm winds. A tree fell into a house due to damaging thunderstorm winds. Large trees were reported down due to damaging thunderstorm winds. Large trees were downed due to damaging thunderstorm winds. Numerous trees were downed along Horns Mill Road due to damaging thunderstorm winds. The road was closed as a result. The spotter estimated the magnitude of the thunderstorm wind gust. Siding was ripped from a home due to damaging thunderstorm winds. Numerous trees were downed near Duncan Plains Road due to damaging thunderstorm winds. The wind gust was measured at Port Columbus International Airport. At least a dozen power poles were snapped along Hamilton Road due to thunderstorm winds. One injury occurred from a pole falling on a car. Widespread tree damage occurred in the area due to damaging thunderstorm winds. Several trees were reported down due to damaging thunderstorm winds. Power poles were snapped and wires were down due to damaging thunderstorm winds. The wind gust was measured at Rickenbacker Airport. Trees and power lines were downed due to damaging thunderstorm winds. Two large trees were downed due to damaging thunderstorm winds. Numerous trees were uprooted and several others partially downed on Cranston Drive due to thunderstorm winds. Trees were down and shingles were blown off a roof due to thunderstorm winds. The power was also knocked out. Trees were down along Curve Road due to damaging thunderstorm winds. Trees were downed due to damaging thunderstorm winds. A large tree was downed on a house on Half Avenue due to damaging thunderstorm winds. Multiple large tree limbs were reported down due to damaging thunderstorm winds. The spotter measured the thunderstorm wind gust. Numerous large limbs and small trees were downed. One limb fell on a vehicle. Tree were downed due to thunderstorm winds. Two structures were hit by the falling trees. Numerous trees were downed on Stafford and Clearview Avenues due to damaging thunderstorm winds. Numerous trees were downed on Northland and Proprietors roads due to damaging thunderstorm winds. Trees were reported down due to damaging thunderstorm winds. Several trees were reported down along Route 22 between Amanda and Lancaster due to damaging thunderstorm winds. The spotter estimated the magnitude of the wind gust. A roof was reported off a brick structure in the downtown area due to thunderstorm winds. Multiple trees were reported down due to damaging thunderstorm winds. Numerous large limbs were downed and shingles were ripped off homes near Interstate 270 and Cleveland Avenue due to thunderstorm winds. Numerous trees were downed and two roofs were removed from houses due to thunderstorm winds.