Isolated to scattered thunderstorms are possible into Friday's night time hours, mostly in southern Illinois. Large hail, damaging winds, and tornadoes may occur with any storms that become severe. However, much of western Kentucky could remain dry until Saturday.
A flash flood watch will remain in effect through Sunday evening for multiple rounds of thunderstorms containing very heavy rain. The watch has been expanded to include southwest Indiana and adjacent northwest Kentucky counties along its immediate border.
An additional 2 to 4 inches is possible across the entire region, with perhaps 3 to as much as 5 inches additional rainfall across the watch area. Southeast Missouri could expect to see higher totals, even exceeding 8 inches by Monday in the Ozark region.
Scattered severe thunderstorms will continue to be possible periodically through much of the weekend as well. Large hail and damaging wind gusts are expected to be the main severe weather hazards. Isolated tornadoes cannot be ruled out.
On the Net:
Paducah Weather Service webpage