The massive amounts of rain that fell on Louisville Tuesday have put the city at a greater risk of flash-flooding.The first round of floods was made more severe by the fact that the ground was already saturated by the nine inches of water that fell in the previous week.Metro Sewer District Director Bud Schardein says additional rainfall was pushed into the sewer and the problem was compounded by the record speed of the Tuesday morning storm."What we've been able to record is the highest amount of rain that's fallen in this community—on record—in a one hour period. Between 3 to 6 plus inches of rain," he says. "Water was falling from the sky faster than it could enter the system."Schardein says there's nowhere for additional water to go except into the sewers and the street, which increases the chance of flash-flooding if more rain begins to fall.The National Weather Service is predicting a 30 percent chance of rain for Wednesday and Thursday.