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Weather Disturbances (Project in Science)

This powerpoint presentation is all about weather disturbances. Here, we tackle thunderstorms, tropical cyclones, monsoons, ant the Intertropical Convergence Zone. I hope this will help you so much. Please comment about your ideas and... anything. Thank you for Viewing and Enjoy!!!

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Weather Disturbances (Project in Science)

  1. 1. WeatherWeather DisturbancesDisturbances
  2. 2. IntroductionIntroduction What is a weather disturbance? • A weather disturbance is a general term that describes any pulse of energy moving through the atmosphere.  
  3. 3. • They are important in that they can act as focusing mechanisms for storm formation, or even to intensify low pressure systems. • They are typically mid or upper atmospheric troughs of low pressure that are embedded in the general wind flow of the atmosphere.
  4. 4. ThunderstormThunderstorm
  5. 5. What is a Thunderstorm?What is a Thunderstorm? • It is a small-scale weather systemIt is a small-scale weather system in which lightning and thunder arein which lightning and thunder are produced by a funnel-shapedproduced by a funnel-shaped cumulonimbus cloud.cumulonimbus cloud. • It is also known as an electricalIt is also known as an electrical storm, a lightning storm,storm, a lightning storm, thundershower or simply storm.thundershower or simply storm. • It usually produces gusty winds,It usually produces gusty winds, heavy rains, and sometimes hail.heavy rains, and sometimes hail.
  6. 6. • A thunderstorm occurs when the skies darken,A thunderstorm occurs when the skies darken, the wind picks up, lightning flashes, thunderthe wind picks up, lightning flashes, thunder roars, and static is heard on your AM Radio.roars, and static is heard on your AM Radio. • May last for about 30 min. or even a hour.May last for about 30 min. or even a hour. • Plays an important role in the hydrologic cyclePlays an important role in the hydrologic cycle and general circulation.and general circulation. • Are also engines of tropical disturbanceAre also engines of tropical disturbance that bring a large fraction ofthat bring a large fraction of the annual rainfall to tropicalthe annual rainfall to tropical coastal regions.coastal regions.
  7. 7. Examples ofExamples of ThunderstormsThunderstorms
  8. 8. More :DMore :D
  9. 9. TropicalTropical CycloneCyclone
  10. 10. What is a TropicalWhat is a Tropical Cyclone?Cyclone? • A tropical cyclone is a generic term for aA tropical cyclone is a generic term for a storm with an organized system ofstorm with an organized system of thunderstorms that are not based on athunderstorms that are not based on a frontal system.frontal system. • It is a low pressure system that generallyIt is a low pressure system that generally forms over tropical ocean areas, andforms over tropical ocean areas, and brings wind and thunderstorms.brings wind and thunderstorms. • Comes from the Greek word “kyklos”,Comes from the Greek word “kyklos”, which means “coiling snake.which means “coiling snake.
  11. 11. • It rushes in a spiral motion and have a lowIt rushes in a spiral motion and have a low pressure center called “eye of the storm”.pressure center called “eye of the storm”. • Tropical cyclones with maximum sustainedTropical cyclones with maximum sustained surface winds of less than 62 km/h are calledsurface winds of less than 62 km/h are called tropical depressions.tropical depressions. When the winds reach 62When the winds reach 62 km/h, it becomes akm/h, it becomes a tropical storm.tropical storm. Winds thatWinds that reaches at least 118 km/h, then they are calledreaches at least 118 km/h, then they are called hurricaneshurricanes in the Atlantic andin the Atlantic and typhoonstyphoons in thein the Pacific.Pacific. • Typhoons are strongest over the oceanTyphoons are strongest over the ocean where they get their energywhere they get their energy and weakest in the land.and weakest in the land.
  12. 12. Examples of TropicalExamples of Tropical CyclonesCyclones
  13. 13. More :DMore :D
  14. 14. MoonsoonMoonsoon
  15. 15. What is a Monsoon?What is a Monsoon? • The term “monsoon” was from theThe term “monsoon” was from the Arabic word “mausim”Arabic word “mausim” which meanswhich means “seasonal wind”.“seasonal wind”. • It is a seasonal flow of windsIt is a seasonal flow of winds between the Northern and Southernbetween the Northern and Southern Hemispheres.Hemispheres. • Monsoons are similar to Windflow.Monsoons are similar to Windflow.
  16. 16. • There are two monsoons system thatThere are two monsoons system that affect the areas such as “Monsoon Asia”affect the areas such as “Monsoon Asia” or in particular the Philippines andor in particular the Philippines and Southeast Asia. These are theSoutheast Asia. These are the Southwest Monsoon or “Habagat” andSouthwest Monsoon or “Habagat” and the Northeast Monsoon or “Amihan”.the Northeast Monsoon or “Amihan”. • Most summer monsoons produce copiousMost summer monsoons produce copious amounts of rain; winter monsoonsamounts of rain; winter monsoons tend to cause drought.tend to cause drought.
  17. 17. The 2 Monsoon SystemsThe 2 Monsoon Systems 1.1. Southwest Monsoon (Habagat)-Southwest Monsoon (Habagat)- - felt during the months of June- felt during the months of June and October.and October. 2.2. Northeast Monsoon (Amihan)Northeast Monsoon (Amihan) - experienced from- experienced from November to February.November to February.
  18. 18. Examples of MonsoonsExamples of Monsoons
  19. 19. More :DMore :D
  20. 20. IntertropicalIntertropical ConvergenceConvergence ZoneZone
  21. 21. What is IntertropicalWhat is Intertropical Convergence Zone?Convergence Zone? • Intertropical Convergence ZoneIntertropical Convergence Zone (ITCZ) is the meeting place of hot(ITCZ) is the meeting place of hot and cold tradewinds in the northernand cold tradewinds in the northern and southern hemisphere.and southern hemisphere. • The weather system may trigger rainThe weather system may trigger rain showers, even flash floods inshowers, even flash floods in affected areas.affected areas.
  22. 22. • It is a belt of low pressure that liesIt is a belt of low pressure that lies between the trade winds zone of thebetween the trade winds zone of the northern and southern hemisphere. Anorthern and southern hemisphere. A snake-like path and generally near thesnake-like path and generally near the equatorequator • Sailors usually called this doldrums,Sailors usually called this doldrums, where wind speed and direction arewhere wind speed and direction are weak and irregular.weak and irregular. • It is located 5It is located 5°North and 5° South.°North and 5° South.
  23. 23. Example of ITCZExample of ITCZ
  24. 24. Thank You!!!! By: Marigold F. So (Luna Nightmare)

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This powerpoint presentation is all about weather disturbances. Here, we tackle thunderstorms, tropical cyclones, monsoons, ant the Intertropical Convergence Zone. I hope this will help you so much. Please comment about your ideas and... anything. Thank you for Viewing and Enjoy!!!

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