1.+What+is+a+Cyclone?

The following PowerPoint explains the ways in which a tropical cyclone forms, distructs and dies. Click on the link to view.

View of wall from inside a cyclone.

= Where do Cyclones Occur?(Australia) =

Cyclones only occur where the environmental factors are suitable( refer to 2. How did Larry Form?) which is usually in North-Western Australia and North Queensland.
>  > (Unknown Author, 2006, cyclone larry 2006, viewed 22/5/10, <[] >) >
 * " Warm ocean waters (at least 80°F / 27°C) throughout a depth of about 150 ft. (46 m).
 * An atmosphere which cools fast enough with height such that it is potentially unstable to moist convection.
 * Relatively moist air near the mid-level of the troposphere (16,000 ft. / 4,900 m).
 * Generally a minimum distance of at least 300 miles (480 km) from the equator.
 * A pre-existing near-surface disturbance.
 * Low values (less than about 23 mph / 37 kph) of vertical wind shear between the surface and the upper troposphere. Vertical wind shear is the change in wind speed with height. " 

=Who does it effect?= Local: Cyclones directly impact the communities that suffer from its extreme force of nature.

National: Cyclones effect a whole country in terms of disrupting the economy and requiring mass amounts of financial and material aid. For example, when cyclone Larry hit Australia it damaged all banana crops and the price of bananas in Australia more than quadrupled in price.

International: Cyclones can effect people internationally in terms of the economy. For example, when cyclone Larry hit Australia banana prices went up considerably worldwide.