Fri-Sat, Sept 27-28th Heavy Rain/Flood Event Update #1

(7:15AM - 9/27/19) The wet pattern that has been in place will continue, with another storm system expected to bring heavy rainfall and flooding concerns to portions of the state, this morning through Saturday morning.

A storm system pushing through the the region will bring multiple rounds of rain and t'storms to portions of the state this morning through Saturday morning. An initial round of rain and t'storms will be likely across much of Northern and portions of Central Illinois this morning through this afternoon. A second round of rain and t'storms will be likely across the same areas this afternoon into Saturday morning. The repeated rounds of rain and t'storms over the same areas, along wind expected training, will allow for widespread rainfall totals of upwards of 1-3" across much of Northern and portions of Central Illinois during the aforementioned time-frame. Isolated corridors of rainfall totals in excess of 3" are possible, but will be hard to pin down due to mesoscale factors. Given the wet pattern that has been in place the past several weeks, along with the expected heavy rainfall, low to moderate flood potential will exist across portions of Northern and Central Illinois.
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Below is the TAM flood forecast for this morning through Saturday morning.

JP

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