Areas of fog and freezing fog may stay trapped in the valleys(Illinois, Rogue up to Roseburg) late tonight into Wednesday. This means forecasting high temperatures on Wednesday may become rather challenging if we get limited or no sunshine. There is also a potential problem for later Thursday (and Thursday night) when a weak system brings precipitation(rain/patchy freezing rain/mix potential). Colder air will remain trapped in some locations (the Illinois Valley comes to mind) so check updates because snow levels might vary, and freezing rain can be a problem. Have a great week.
12/10/2013 8:13 p.m.