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geography year 9 rev map - Coggle Diagram

- - - - india
      - australia
      - madagascar
    - - south east asia
      - japan
    - - carribean
      - south east
      - usa
    - - katrina
      - a lot start in the atlantic near north west africa
      - they draw there energy from the sea and can only form when the ocean beneath is around 26 degrees give or take one
      - the much bigger major storm form when the ocean is at around 28 degrees c
      - they need developing waves patterns or thunder storms which are not found in the areas under high pressure also earths rotation can not
      - they form around 8 to 20 degrees north of the equator
        
        where eastley trade winds converge and there is lots of moisture meing that it is perfect for the forming of them
      - as the air rises from the ocean evaporating the water releasing more latent energy it adds more more and more buoyancy to it. This makes more and more violent thunder clouds since the trade winds arrive curved this is how the storm ends up spinning the clouds there and once the winds reach 74 mph it counts as a class 1 hurricane.
      - hurricanes are measured in classes 1 to 5 though in all hurricanes there is the eye of the storm a calm slot where there is no winds or rain it's the middle of the storm and outside that is the worst part of the storm the eye wall. in the eye wall winds can exceed 155 mph in a class 5 hurricane