Heavy rain today (Friday) and continued snow melt are expected to tax local storm water drainage systems. The National Weather Service in St. Louis says streams and creeks in rural areas will rise, but should be able to handle the run-off. It is municipal sewer systems that could back up. Ice-clogged sewers could cause localized urban flooding.
The Metropolitan Sewer District is asking residents to first try and clear some of the snow or debris from the sewer openings before calling them. With 130-thousand inlets to manage, MSD says it is impossible to attend to all of them. Authorities also remind motorists not to drive on flooded roads.