What is the difference between polar and arctic air mass?

Answer 1

Arctic air masses come from the very far north usually way north of the arctic circle and can originate as far north as the north pole causing the coldest weather this is usually the coldest air mass with very little moisture arctic air masses exist anywhere from 75-90 degrease north this is why they are colder than a polar air mass . Polar air masses usually come from lower latitudes from around 65-73degress north this is there source of origin they cause cold winter temperatures with a lot of snow they are still cold air masses just not as bitingly cold as that of its further north component. Don't be fooled by the names even though it says polar its still coming from a further south origin compared to the arctic airmass. If i were the person who named these are masses i would say polar is colder than arctic but its just the way they label it.