Pampero is ________

Pampero is the name for a severe line squall that occurs over the Pampas of Argentina and Uruguay. A pampero event marks the passage of a cold front and often brings a considerable drop in temperature. The Pampero is usually accompanied by very humid and close conditions, severe rain, hail and thunderstorms and is followed by a cold, dry, gusty, southerly or south-westerly wind.