Just curious. Living in the Pacific NW, as many of you suspect, we have a few cloudy days in the winter.  Trying to go east involves climbing over an MEA of 8400' or going down to the Portland area where the MEA is 7000'.  Since I've been avoiding potential icing like the plague, it limits doing Angel Flights over to the Spokane area.  My philosophy has been, whether moderate icing is predicted or not, if a look at the skew-t doesn't indicate that I can be above the weather by the freezing