Sat-Sun, Sept 21-22nd Heavy Rain/Flood Event Update #1

(1:00PM - 9/21/19) The combination of a storm system moving through the region and the remnants of Tropical Storm Imelda, will bring several rounds of rain and t'storms to the state today through Sunday.

Several waves of organized rain and t’storms will be likely across the state through Sunday night. The most concentrated area for this activity will be across Northern and Central Illinois. Across this area, widespread rainfall total this weekend will be in the 1-3” range, with isolated corridors of 3-6” totals not out of the question for portions of Western into Northern Illinois. These high rainfall totals over a relatively short period of time will lead to flooding concerns for much of Northern and Central Illinois, including portions of Northern Illinois that have already been impacted with heavy rainfall totals and flooding the past few weeks. We have included a large portion of Northern and Central Illinois in a moderate threat for flooding potential, with an isolated major threat a possibility for some areas.
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Below is the TAM flood forecast for today-Sunday.

JP

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