downpour

This term describes a sudden, intense volume of precipitation that typically overwhelms drainage systems or catches people unprepared. It carries a connotation of intensity and abruptness, distinguishing it from a steady rain or a light drizzle. As a noun, it is typically used as a countable entity when referring to specific weather events, though it describes a mass of water. It is most frequently paired with adjectives like sudden, torrential, or heavy to emphasize the severity of the storm.