EF1 tornado in Sullivan County, Indiana

An EF-1 tornado with path length of 2.74 miles and path width of 425 yards tracked east-southeastward before ending at the western edge of Hymera. Damage was mostly limited to trees and a few structures northeast of Shelburn and northwest of Hymera. Peak winds were 100 mph.

The 21st late day brought a quickly-evolving set-up featuring an increasingly moist column supported by an approaching Middle Mississippi Valley upper short wave trough, strengthening flow amid a warm frontal zone draped over the local central Indiana region providing 35-50KT of effective wind shear, and advection of higher low-level dewpoints with daytime heating which provided sufficient destabilization. Severe rotating supercells tracked across Illinois into southern central Indiana as they aligned into a Mesoscale Convective Vortex (MCV).

Wind damage occurred within nine central Indiana zones and as far east as Brown County, five (mainly EF-0) tornadoes were focused in Owen County and points south and west, while the region's farthest southwestern counties experienced scattered flash flooding following downpours from multiple supercells. A final EF-0 torando and flash flooding also occurred in Bartholomew County. This Bartholomew County EF-0 was Indiana's 63rd tornado in 2026...a new yearly state tornado record (73 events) was set later in the evening, with 74 tallied by the end of June 21st.