First off, let's talk about the storm threats today. The air above us will be filled up with more wind energy today, with circulation involved around an area of low-pressure moving over Kentuckiana late this afternoon and evening. So, the main threat with any strong storm will be damaging wind gusts, some hail possible, with very heavy rain and lightning. We'll have to watch for localized flooding with 1-3" of rainfall possible through tonight.
The secondary threat is a VERY SLIGHT chance of a brief spin-up tornado. I think chances are highest along and east of I-65 today, especially southeast of Louisville where there is more instability. The Storm Prediction Center has most of our area under a Slight Risk of Severe Storms today - but, again, I think the higher risk is east and southeast. While, we never want to see any risk of tornadoes, it is just a slight chance and we'll keep a close eye on it. Highest chances will be mainly from 4pm to 10pm.
Notice on the Futurecast maps below the thunderstorms firing up, concentrated over the eastern half of our area at 5:30pm. This is the potential severe weather batch. Later tonight through early tomorrow morning more rounds of showers and storms are possible, but severe weather not expected - as we lose the circulation and overall energy.