From ChicagoStorm in the general severe thread regarding tomorrow: "Tomorrow definitely holds potential, but all hinges on tonight/tomorrow mornings activity. SGT risk looks good for now, but could need upgrade to ENH in the morning once everything becomes clear."   Going to take the bait and start a thread for the upcoming storm system including tomorrow's severe threat.  This thread can also be a catch-all for other threats including the heavy rain expected in parts of the