An e-mail from Moline makes reference to the use of the term cyclone and wonders why it's used in differing contexts. Any area of low pressure is a cyclone. The three major kinds of cyclones are the ...

Tropical cyclones are carried by the large-scale wind patterns that govern the atmosphere. These storms form over warm ocean waters, where the sea surface temperature is about 26º C or more, providing ...

Most cyclones form between 5 and 20 degrees latitude on either side of the equator. Cyclone Montha hit the Andhra Pradesh coast on Tuesday, with heavy rain and strong winds battering multiple ...