Low is over central Illinois & sun is appearing in parts of southeast Illinois & west-central Indiana. This is resulting in some pockets of surface-based buoyancy moving in from the southwest as temperature hit 60 in our far southwest & some colder air aloft pivots in.
Activity seems to be pulsing up the most there there some sun is occurring with one heavier cell near Effingham, Illinois & the other near Paris, Illinois.
A couple of arcs of showers & thunder are pivoting around the center of the low, moving northeastward toward our area.
Helicity & shear-rich environment with some pockets of buoyancy (some surface-based) results in MARGINAL RISK of severe for the southern half of the viewing area along & south of a Boswell to Delphi to Kokomo line.
An isolated severe storm is possible as temperatures continue to rise.
The next few hours' radar projection shows the arcs of showers & thunder pivoting through the area.