“Remember, people are irreplaceable,” said Queensland Premier Anna Bligh as she urged residents between Cairns and Cardwell to evacuate immediately. “Do not bother to pack bags, just grab each other and get to an area of safety. This is the most serious and destructive cyclone you can have and it’s continuing to make its way towards the Queensland coast.”
As people all over Australia get set to watch the devastation caused by Cyclone Yasi and residents of Far North Queensland literally escape to protect their lives, we take a look at what a cyclone really is and what to do if you are ever affected.
What is a cyclone?
Tropical Cyclones are low pressure systems which develop in the tropics.
How are they formed?
In order for a cyclone to form, the ocean waters need to be at least 26°C. Water evaporates and forms clouds above the warm water. If there is low air pressure where the clouds are formed, it pulls them in and they begin to rotate. Clouds continue to form and begin to spin more. This is the stage when it can develop into a mature cyclone, or lose its momentum.
In order for the system to be categorised as a cyclone, its average sustained wind speed needs to exceed 63 kilometres per hour. To be classified as severe, the average sustained wind speed needs to exceed 118 kilometres per hour.
Top Comments
I had a dodgy day at work yesterday and was so glad to be going home to a glass of wine...i didnt get much internet time yesterday and (thank you company policy) there is no radio for news, so when I finally got home I didn’t realise that it was so so bad up there. I immediately wanted to give myself a good slap....these poor people have SO much more to worry about and I am complaining about a bad day etc etc.... gave me a wakeup call.
I agree that Anna Bligh deserves a medal...she was on the news when I went to bed, and she was there when I woke up....still calm, reassuring and compassionate, but clearly across the situation.
FNQ thinking of you all (those with two legs as well as four)
xx
Thinking of everyone waiting for the storm. Those of us lucky to be living somewhere else will be here for those in the cyclone's path on the other side of it, with love and money.
Remember to crack some silly jokes while you're waiting and give each other lots of hugs.