How do tropical cyclones form
1.) Warm surface water in tropical oceans evaporate quickly, the vapours cools and condenses to form large cumulonimbus clouds
2.) Low air pressure forms below the storm causing more air to rush in increasing wind speed
3.) The rising air currents and clouds begin to spiral due to the Coriolis force
4.) Some cold, dense air begins to sink into the centre of the storm creating calm, cloudless conditions called the eye.
5.) The storm tracks from east to west, strengthened from further evaporation, if winds reach 74mph then it is a tropical cyclone