From northern Indiana
"We then turn our attention to a deepening low moving through the
upper Great Lakes. A warm front may lift in Tuesday morning,
followed by a cold front in the evening. At this distance,
conditions seem favorable for severe thunderstorms: bulk wind shear
of 40-50 knots, low-level lapse rates near 9C/km and plenty of CAPE.
Upper-level support locally appears favorable as well with the right
entrance region of the 500-mb jet nearby. Check back for updates in
the coming days."