Yes, I too did a double take this morning when I saw the radar and rain was actually moving West! It tends to be a rare occurrence, but an upper level low pressure system is retrograding from Tennessee back Northwest and is causing the rain to move from East to West! So in essense, the same system that brought us rain over the weekend is moving back West and bringing more rain back into the area! Here is a radar loop.
Rain moving from East to West?