Defined: A period of unseasonably warm, dry weather that occurs in autumn, typically in October or November.
That is exactly what we are having in Northwestern Ark. The last one was in 2009 when it was over, the area had an ice storm. Thousands suffered power outages for days or weeks.
You cannot forecast future weather. The liars that claim they know what the weather will be 10 years in the future are simply charlatans.