Now that Temperatures are plummeting, is it Polar Vortex or no?

Temperatures are forecasted to be -20 to -35 below this Wednesday and Thursday
Answers

TQ

Polar vortex doesn't mean what you think it means.

oikoσ

Certainly polar vortex. Look at the weather maps over a period of a week or two and you will see the cold air flowing south from the arctic and gradually moving west to east. Ahead of and behind the cold areas, the winds are blowing from south to north, bringing warmer air.

Muke

This is not the case everywhere. Where do you live?