5:10 P.M. UPDATE
A tornado warning remains in effect for Northwestern Daviess and Northeastern Knox Counties until 5:30 p.m. National Weather Service radar indicated rotation within the storm located 8 miles northwest of Washington moving northeast at 15 mph.
Flying debris will be dangerous to those caught without shelter, mobile homes will be damaged or destroyed.
Forecasts say a frontal boundary will interact with the remnants of a tropical system, resulting in the possibility of heavy rainfall today through Saturday. A Flash Flood Watch will be in effect for parts of southern Indiana later today through Saturday. Severe storms are possible again on Sunday.