weather hazards

• what are the 3 different cells in order from the equator?

  Hadley,ferrel and polar cell
• what is low pressure caused by?

  rising hot air (causes stormy, cloudy weather)
• what is high pressure caused by?

  cold air sinking (causes clear and calm weather)
• what are the conditions needed for a tropical storm?

  ocean water at 26 or above

  between 5-15 at the equator (bc the coriolis spinning effect)
• how does a tropical storm form?

  -rising air leads to low pressure

  -this turns into a thunderstorm which causes air to be sucked in from trade winds

  -the thunderstorm will now spin bc of the winds traveling at opposite directions

  -when the tropical storm has grown it power more cool air sinks to the centre of the storm creating a calm condition called the eye of the storm

  -when the tropical storm hits land it loses its energy and will lose strength
• in typhoon Haiyan how many deaths were caused and how many homes destroyed?

  deaths - 6500

  homes - 130,000