typhoon

• Weather


  • Condition of the atmosphere at a specific place and time
  • Located in the troposphere, the lowest layer of the atmosphere
• Weather Disturbance

  • Disruption in the steady state of the atmosphere
  • Common disturbances include storms, thunderstorms, tornadoes, and tropical cyclones
  • Caused by interactions between hot and cold air masses
• Typhoon Development

  1. Water evaporates at ocean surface (26.5°C).
  2. Warm, moist air rises, creating low pressure.
  3. Cool air rushes in, heating up and carrying more vapor.
  4. Rising warm air cools, condensing into clouds.
  5. Wind spirals due to Coriolis effect, forming a typhoon.

  When this happens storms, thunderstorms, tornadoes, hurricanes, or tropical cyclones occur.
• TYPES OF WEATHER DISTURBANCES

  STORM

  THUNDERSTOM

  HURRICANE
• STORM

  • Violent disturbance in atmosphere.
  • Marked by sudden air pressure changes.
  • Features rapid air movements.
  • Varies in size and scope.
• THUNDERSTORM

  • Localized storm cloud.
  • Generates thunder and lightning.
  • Brings heavy rain, strong winds,lightning, and thunder.
  • Intense, localized weather event.
• HURRICANE

  • Tropical storm.
  • Diameter around 100 m.
  • Spiraling winds 120 to 300 kph.
  • Intense tropical cyclone.
  • Formed over warm ocean waters.
  • Can cause extensive damage.
• HURRICANE vs CYCLONE

  • Formed in Atlantic or Central Pacific: HURRICANE
  • Formed over Indian Ocean: CYCLONE
• Hurricane Eye

  • Center of the storm
  • Moves counterclockwise
  • Calmest part
  • Surrounded by eyewall
• Tropical Cyclones

  • Forms over warm water
  • Large, powerful storm
• 1. Tropical Depression (TD)

  • Heavy rainfall
  • Max wind up to 61 kph
• Tropical Storm (TS)

  • Strong thunderstorms
  • Wind: 62-88 kph
• Severe Tropical Storm (STS)

  • Wind: 89-117 kph
• Typhoon

  • Max wind: 118-220 kph
  • Eye develops
• Super Typhoon

  • Wind exceeds 220 kph