EF0 tornado in Kosciusko County, Indiana

A NWS Storm survey confirmed a tornado touched down in Wabash County and crossed into Kosciusko County east of County Road 100 West. One farm just inside the Kosciusko county border had a hog barn destroyed with much of the debris being thrown to the southeast into a large grain silo facility. One large grain bin was completely flattened and severe damage occurred to a harvester silo. In addition, a corn crop field to the south of the county line road and east of the farm was flattened and shredded. Additional extensive crop and tree damage continued before the tornado dissipated in a grove of trees just west of County Road 400 East. The total track of the tornado across both counties was around 7 miles with maximum winds of around 100 mph.

A line of severe thunderstorms developed in eastern Iowa during the afternoon hours of June 30th. Plenty of instability and moisture was available for the line to mature into a severe bow-echo with the bulk of this racing northwest of the area into Wisconsin and Central Lower Michigan. The southern flank of this line did briefly take on bowing characteristics, producing gusty winds over southern Lake Michigan into portions of northwestern Indiana and far southwestern Lower Michigan before dissipating. Behind this line, a much stronger line of thunderstorms rapidly developed on a pre-frontal trough in northern Illinois. This line had much more favorable parameters to work with deep layer shear to 50 knots and a rapidly increasing low level jet to 50 knots. As this second line of convection raced into northwestern Indiana during the late evening hours, several stronger circulations were noted along the leading edge that lead to multiple tornado confirmations and swaths of at times extensive wind damage. The second event continued into July 1st with additional wind damage and confirmed tornadoes occurring during the early morning hours.