ABSTRACT
Some atmospheric disturbances produce the kind of extreme weather events making the national and international news headlines on a regular basis. Just about everyone is interested to know more about hurricanes, typhoons and tornadoes. There is very often confusion about whether or not they are the same thing and whether, for example, we can control these extremely violent phenomena. In the higher latitudes, w ild weather is most often linked to the passage of travelling 'frontal' depressions frequently bring ing widespread strong winds and heavy rain.
