Do derechos occur in other areas of the world besides North America?
Derechos likely occur in other areas of the world where meteorological conditions are favorable for their development. However, only one such event has been formally documented in recent years. On July 10, 2002, a serial derecho occurred over eastern Germany and adjacent portions of neighboring European countries. In Berlin and surrounding areas, 8 people were killed and 39 were injured, mainly from falling trees. In Bangladesh and adjacent parts of India, a type of storm known as a “Nor’wester” occasionally occurs in the spring. From various descriptions and knowledge of the meteorological environments involved, it appears that some of these storms may be progressive derechos. TORNADOES IN DERECHO ENVIRONMENTS Can derechos and tornadoes occur with the same storm system? Derechos and tornadoes can occur with the same convective system. This is particularly so with serial derechos associated with strong, migratory low pressure systems. The tornadoes may occur with isolated supercells (r
