The Mysteries of Weather: What Are Cyclones and Anticyclones?

Meteorological systems are continuously moving air masses, with diameters of 150-4,000 km (92-2,500 mi). Some are 12-15 km (7.5-9.2 mi) deep, located in the troposphere (the lower layer of the atmosphere). Those that are 1-3 km (0.6-1.8 mi) deep are faster. The meteorological systems are defi... [ read more >> ]