👉 In meteorology, a squall line is an extended cloud formation that forms over land. It typically appears as a series of thin clouds that gradually grow larger and move in a zigzag pattern. The term "squalls" refers to these large, narrow bands of low pressure that occur when the upper air temperature drops below freezing point, causing the ground and surrounding air to cool rapidly. Squalls can last for hours or even days, and they are often accompanied by thunderstorms and rain. S