A big windstorm is a powerful and destructive storm that can cause significant damage. It is characterized by strong winds, often accompanied by rain or snow. The term 'big windstorm' can refer to a variety of storms, including gales, tornadoes, and blows. A GALE is a strong wind with gusts of up to 50 miles per hour. A TORNADO is a violent rotating column of air that can cause extreme destruction. A BLOW is a strong gust of wind that can cause damage to trees and buildings.