According to the latest report from the U.S. Drought Monitor, about 71 percent of Illinois is now considered to be in an “extreme drought.” While you might think this could severely impact river levels, that is not necessarily the case, according to an official with the U.S. Army Corps of Engineers.
Even with Sunday's showers, we’ve only seen about an inch of rain this month in much of Illinois. Russell Errett with the U.S. Army Corps of Engineers says the upper Mississippi Valley has been able to pick up the slack.
He says if it weren't for the April rainfall, we could be in much worse shape. There is a winter draw-down in many of the resivoirs, and the impacts on water supply and recreation could be much greater.