National Weather Service United States Department of Commerce


A deep trough over the Midwest and a moist, buoyant warm sector lead to a line of strong storms over southern central Indiana. As a squall line organized and enveloped cells downstream, bowing segments lead to damaging winds and broad rotation in a bookend vortex radar signature. This region of broad rotation eventually lead to a brief tornado in Southeastern Decatur county. Straight line wind damage also occurred along the path of the bowing segment with significant damage noted along Lake Monroe where boat docks were damaged.
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