User blog comment:Gemmaniac/Possibilities of SnowBird being a thing/@comment-28599580-20180214184650/@comment-4141313-20180214200209

She's not in her 40's. Cinder was stated by the CRWBY to only be slightly older than the protagonists, and Salem has made reference to Cinder being the young one of the group. She's early 20's, so Cinder is more around Winter's age.