Download La Niña

What is a Tropical Cyclone?
Tropical Cyclone is a large area of extreme low pressure that form in
warm seas and oceans in tropical regions on either side of the
equator Cyclones are characterised by winds rotating around an
central eye
These rotating air masses are called Tropical Cyclones, hurricanes in
the United States and Typhoons in the Asia region
The exploding Spaghetti Factory.
Cyclones track randomly and are very difficult to predict where they
will make landfall due to their random nature. A cyclones average
lifespan is 9 days, sometime they can form and mature in less than
48 hours. Once Cyclones makes landfall land, the most destructive
phase of a cyclone they will begin to weaken becoming tropical low
depressions.
Tropical Cyclone Steve was noted for its longevity and impacted the
regions of Queensland, the Northern Territory and Western Australia
before moving into the southern states. 27th February to11th March2000.
The cyclone season extends from December through to April.
Annually Australia gets 10 cyclones per year, with 6 crossing the coastline.
During the years 1910-1992, 43 tropical cyclones passing within 150km of
Mackay.
Rising flood waters at Agnes Creek in
South Australia, during the 1988 - 89 La
Niña event.
Photograph by Ern Mainka
La Nina causing subsequent flooding of
the arid interior and damage from the
associated
Cyclone damage.
An example of the Southern Oscillation Index.