What is a squall line?

A squall line is defined as a line of severe thunderstorms that can produce strong winds, heavy rain, hail, and even tornadoes. These storms typically form along a cold front, where warm, moist air is lifted rapidly as it meets colder air moving in. The intense updrafts associated with these storms create a continuous line of severe weather, hence the name "squall line."

This phenomenon is important for pilots and weather forecasters, as squall lines can significantly impact flight operations due to their turbulent conditions and the potential for rapidly changing weather. Understanding squall lines helps in anticipating adverse weather conditions and ensuring safety in aviation and other outdoor activities.