Supistelut

Supistelut, also known as "supercell thunderstorms," are a type of thunderstorm characterized by the presence of a deep, persistently rotating updraft. This rotation is typically caused by wind shear, which is a change in wind speed or direction with height. Supistelut are often associated with severe weather, including large hail, strong winds, and tornadoes. They are most common in the central United States, particularly in the Great Plains region, but can occur in other parts of the world as well. The term "supistelu" is derived from the Finnish word for "supercell," reflecting the storm's unique structure and behavior. Supistelut are studied by meteorologists to better understand and predict severe weather events.