cold air mass
Frigid atmospheric body
A cold air mass is a large body of air that is cooler than the surface beneath it or the air it displaces.
Cold air masses form over polar or arctic regions and bring lower temperatures as they move into warmer areas.
Meteorologists track them to predict temperature drops and weather changes: A cold air mass is moving in from Canada.
- arcticOf extreme northern cold
- polarOf extreme latitudes
- polar vortexPersistent circulating cold air mass
- arctic blastSevere cold from polar regions
- frontForward-facing side
chill · bone chilling · freeze · below freezing · blast · winter · high pressure · temperature drop · frost · brisk · biting · crisp · snap · windchill · wind chill factor · meteorology · jet stream · lake effect