I went snowmobiling on the North Shore in Minnesota when it was 20 below. Racing snowmobiles with my son. We hit 100 mph across a frozen lake. I can’t even fathom what the wind chill must have been, but even though I was wearing three layers of windproof clothes, I still almost suffered hypothermia before the day was over.
I used to keep a snowmobile outfit on the passenger floor of my car during the Winter - right under the heater vents “just in case”. Never been above 70 mph o a snow machine and in cold weather it was plenty....