Larry, I don't think anything has happened in the last week or so to get rid of snow. So, that area you mention may still be in it. Check out some on-line cameras or make some calls.
There is effectively zero snow north of Ames, which is where I live, but I don't know how far I'd have to go to get to the snow line. Raptor populations are not super high, which suggests that the snow line is pretty far north of me.
Thinking about heading Northwest tomorrow, but maybe just west. Can't make up my mind.