There is a chance of flurries tonight as a cold front sinks south through Missouri and Illinois. This front will bring a much colder air mass into the region tomorrow, setting the stage for a late season winter storm on Thursday and Thursday night. The best chances for snow will be on Thursday night before precipitation tapers off on Friday. There will be a very sharp cutoff between areas that receive several inches of snow and areas that receive little to no accumulation. There is still considerable uncertainty with the track of this potential winter storm, so be sure to check back for the latest forecast. (Please visit http://weather.gov/lsx for more information.)