(10:45PM - 2/5/19) A series of disturbances and then a main storm system moving through the region will bring multiple rounds of rain and thunderstorms to much of the state from now through Thursday afternoon.
The first disturbance and associated round of rain is currently ongoing across much of the state tonight, with freezing rain across Northern Illinois and plain rain across Central and Southern Illinois. Isolated to scattered thunderstorms have also occurred for some areas. This first round of rain will come to an end tonight into tomorrow morning across the state.
A second disturbance will bring another round of rain and isolated thunderstorms to portions of the state Wednesday afternoon into Wednesday night. At this same time, the main storm system will be developing and moving into the area, bringing the main, most widespread and heaviest period of rain and scattered thunderstorms across the state from later Wednesday night into early Thursday afternoon.
Repeated rounds of rain and moderate to high rainfall totals will lead to moderate flood concerns for Southern Illinois. We have also added minor flood potential across portions of Northern and Central Illinois. Across this area a combination of expected rains, recent snow melt, frozen ground, elevated river/creek/stream levels, and ice jams could cause some minor flooding issues.
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