EF0 tornado in Cass County, Indiana

A survey of damage in the Logansport area indicated that a EF0 tornado touched down west of Logansport Bypass Road and north of County Road 250 South. The tornado moved northeast and did minor damage to the roof of a local warehouse before crossing the bypass. A home on West Clinton Street suffered complete loss of its roof from the tornado (DI: FR12 DOD: 4). However, impact occurred on a sun room that had structural issues and aided in the wind being able to lift the roof of the house. Minor tree damage was found along the remainder of the tornado track until it lifted northeast of the intersection of Lincoln and South Cicott Streets. The maximum wind speed was estimated at 85 mph.

Deep low pressure moved across the northern Great Lakes, with a strong cold front trailing well south into Arkansas. A 50 to 60 knot low level jet aided in advecting in dewpoints greater than 60 degrees. 0-1km storm relative helicity values of 400 to 600 m2/s2 setup the perfect environment for individual thunderstorms to rapidly rotate. Numerous circulations were noted during the event, some significant, which produced swaths of wind damage as well as several weak to strong tornadoes. Given forward speed of 60 mph or more, the convection quickly translated across the area in a matter of hours.