Love the darker shades of green over NMI. Is it even possible to be an island of "avg" in a sea of BN temps?? Just looks odd, but one way that can happen is endless LES/clouds prohibiting the tanking of low temps you will see elsewhere during arctic outbreaks. Generally tho, interior areas will still get cold. During the 7 week bitter cold wave of Jan/Feb 1994 we were "only" -25F in Traverse while at work in Grayling was -35F or -40F. LES was non-stop but didn't go too far inland because it waited until Jan. Nov/Dec LES will normally go further inland and skip over the still warm lakeshore counties.
There have been a few over the years (2022 & 2014 come to mind) but Dec 2001 was 7 days long and some places like Petoskey saw 84" during that early season arctic outbreak.
I think GHD-1 could be used as an example. Models were onto it about 10 days out and didn't waffle iirc. I wasn't here back then but I'm sure there's a thread somewhere??
Guess time has taught me not to invest in such. Not talking only for my hobbies either. But, we are all unique so you keep posting, and I'll keep cringing, lol