Interesting picture below shows 3 things, the actual area where winter weather advisories are in place in purple, light blue indicates where I think winter wx adv. could be issued & the magenta color indicates where I think winter wx adv. are likely. #OHwx #ILwx #MIwx #INwx #MOwx https://t.co/ys3NrOr44AInteresting picture below shows 3 things, the actual area where winter weather advisories are in place in purple, light blue indicates where I think winter wx adv. could be 2941842 Interesting picture below shows 3 things, the actual area where winter weather advisories are in place in purple, light blue