The leading edge of a cold air mass. Cold frontal passages are usually associated with sharp wind shifts, pressure rises, showery or stormy conditions, and rapid temperature drops.
Zone in which a dense, cooler air mass advances toward a warmer air mass. Depicted on weather maps by a blue line and triangles.
Used in meteorology to describe a mass of cold air moving toward a mass of warm air. Strong winds and rain typically accompany a cold front.