(8:00PM - 4/8/19) A significant and strong spring storm system will be pushing across the region the next several days. This system will bring the likelihood for heavy rain/flooding to portions of the state Tuesday night through Friday evening.
The main area of focus for heavy rain and flooding during this period will be across Northern Illinois. Several periods of rain and t'storms will be likely across this area from Tuesday night into Friday evening. The most organized and heaviest rains will likely be Wednesday morning and afternoon, and then again Thursday morning into evening. Rainfall totals upwards of 1-2" are possible for portions of Northern Illinois, generally near and north of I-88.
Additionally, with colder temperatures in place, rain may mix with or change over to snow for a time Wednesday morning across portions of far Northern Illinois...near the Illinois/Wisconsin border. No accumulation is expected at this time. Stay tuned for further updates regarding the snow potential.
Scattered rain and t'storms will also be possible across Central and Southern Illinois during this period, but rainfall totals will much less than further north.
Below is our first TAM flood forecast for this event.
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