S T Disaster Management Cl 9 And 10 Authorstream. As you look for cyclone causes and effects, go through the following points to gain clarity. Since these cyclones move with the westerlies (Jet Streams), they are oriented east-west. Generally, after its passage, a tropical cyclone stirs up ocean water, lowering sea surface temperatures behind it. Cyclones are centred on areas of low atmospheric pressure, usually over warm ocean waters near the equator. thunderstorm … Causes of Tropical Cyclones The main source of energy for tropical cyclones is the warm oceans Tropical cyclones, also called hurricanes and typhoons, cause catastrophic damage when they strike land. And if we find those same storms in the South Pacific and Indian Ocean, these are called tropical cyclo… thunderstorm activity) and winds at low levels, circulating either anti-clockwise (in the northern hemisphere) or clockwise (in the southern hemisphere)” Typically tropical cyclones are accompanied by gale force winds that average a speed of about 63 kilometre per hour. What causes cyclone? CYCLONES Tropical cyclones are intense, cyclonically1-rotating, low-pressure weather systems that form over the tropical oceans. Orientation And Movement. Jet stream plays a major role in temperate cyclonogeneis. And storms in the South Pacific Ocean and Indian Ocean are called cyclones. Two frequently asked questions on global warming and hurricanes are the following: 1. Super Cyclonic Storm Amphan (/ ˈ ɑː m p ɑː n /) was a powerful and catastrophic tropical cyclone that caused widespread damage in Eastern India, specifically West Bengal, Odisha and in Bangladesh in May 2020. Due to earth rotation, wind from different direction hit on ocean surface, this will raise pressure level above sea water and; pressure will decrease below sea level surface, this phenomenon will create swirl on water at sea surface where maximum pressure occurred. A large warm and still ocean area with temperature above 27ºC formed. The IPCC AR5 presents a strong body of scientific evidence that most of the global warming observed over the past half century is very likely due to human-caused • Tropical cyclones form only over warm ocean waters near the equator. When the earth rotating in its equator region, maximum amount of sun light will reflect on sea level; as a result, sea level temperature will raise. To identify cyclone or storm formation, geo stationary satellites launched 22000 mile away from earth. In the Northwest Pacific Ocean, they are called typhoons. That is why they form only over warm ocean waters near the equator. Category 1 Cyclone: Wind speeds between 90 and 125 kilometres per hour, some noticeable damage to houses and trees. Which States Share Boundaries with Pakistan? Odisha known as the disaster capital in India; Cyclones are main causes of huge damage in eastern part of Odisha, which is situated near the Bay of Bengal. Tropical cyclones on the open sea cause large waves, heavy rain, and high winds, disrupting international shipping and, at times, causing shipwrecks. • Cyclogenesis occurs ATMO 1300 Mid Latitude Cyclone Life Cycle • Cold air continues to move south, and warm air north. These include Yanam district in Puducherry, East Godavari, Krishna, and Nellore districts in Andhra Pradesh, Balasore, Bhadrak, Jagatsinghpur, and Kendrapara districts in Odisha, Medinipur, Kolkata, and North and South 24 Parganas in West Bengal. Over 30 lives were lost due to the cyclone. The Bhola Cyclone occurred from November 8 th until November 13 th starting in the Bay of Bangladesh moving up toward east Pakistan. Cyclones develop over tropical or subtropical waters and have a definite organized circulation. The Indian Meteorological Department is responsible for forecasting the occurrence of cyclones, for estimating and categorizing them, and for issuing warnings when necessary. From time to time the Indian Army and the Indian Air Force have also been roped in to rescue Indians from the devastation caused by tropical cyclones. Warm air starts to move northward. The low-pressure area in the eye lifts water surface in the... Cyclones may also cause prolonged heavy rains. By the year 2004, eight countries located in the Indian Ocean region agreed upon a naming convention that could help identify tropical cyclones affecting the region. Category 2: Wind speeds between 125 and 164 kilometres per hour, damage to houses and significant damage to crops and trees. Intense means that near surface sustained2 wind speeds exceed 17 ms¡1 (60 km h¡1, 32 kn). The next year in 2014, Cyclone Hudhud made landfall near Vishakapatnam in the state of Andhra Pradesh and caused extensive damage to coastal regions. Cyclone Ashobaa Cyclone Nilofar Cyclones are categorized according to wind speeds and the damage they cause. They are caused at areas with lower atmospheric pressure. Fears were that a cyclone would hit the state of Odisha and move up to West Bengal over the Diwali weekend. Bangladesh, India, Maldives, Myanmar, Oman, Pakistan, Sri Lanka, and Thailand agreed to contribute a list of names each thus developing a pool of names. They are; speed of wind swirling and; speed of storm rising up from ocean. Also the difference between high pressure and low pressure always plays as a major component in the formation of all cyclones.. By 23 October, 2016, even as the country was gearing up to celebrate a bright and colourful Diwali, the India Meteorological Department pulled a major dampener when it announced that a deep depression had been intensifying along the eastern coast of the country, over the Bay of Bengal. Tropical cyclones are like giant engines that use warm, moist air as fuel. Because this air moves up and away from the surface, there is less air left near the surface. Cyclone Amphan, hit West Bengal on May 20 claiming 86 lives so far and affecting over 10 million people in the eastern Indian state. The cyclone hit India in October 2013and caused pronounced destruction to many villages in Odisha. Category 5: Wind speeds over 280 kilometres per hour, widespread damage. It prompted one of the largest evacuations in the country in decades. How do they develop? The evaporation process occurs while warm air goes up. As the warm air rises it becomes loaded with moisture which condenses into huge thunder clouds. Jet streams also influence the path of temperate cyclones. Category 4: Wind speeds between 225 and 279 kilometres per hour, power failure and much damage to cities and villages. Cyclone Phailin Interesting Indian Inventions and Discoveries That Are Universally Accepted, Online Distance Learning Through Open Universities in India, 10 Ayurvedic medicines for weight loss without side effects, Cyclone Alert: Odisha And Bengal Brace to Fight Cyclone Amphan, Stormwatch : The Severe Cyclonic Storm Helen. Ppt Cyclone And Tsunami Risk Mitigation Measures In India Powerpoint Ation To View Id 3b4348 Zmu0z. What are the Causes and Effects of Cyclones? Cyclone! Mid Latitude Cyclone Life Cycle • A kink forms on the front and cold air starts to move southward. An atmosphere which cools fast … Tropical cyclones are like giant engines that use warm, moist air as fuel. When the storm speed is 39 mile per hour, then it is called as “tropical storm”, as well as when storm obtained speed of 74 mile per hour, then it is officially announced as “tropical cyclone”. Cyclone Phailin was one of the most intense and most destructive cyclones to make landfall in the country in recent times. hazards of a severe windstorm (aka potential disaster agents) wind field (clockwise direction; cat 1 (55 mph) to cat 5 (155 mph or greater) storm surge heavy rainfall landslides (mudflows) costal erosion tornadoes (sometimes) wind penetrating building envelope severe windstorms uplift of roof system flying debris storm surge irregularities in elevation and plan design problems flooding and landslides … Tropical storms are called different things based on where they form. Storm surges are Strong winds push water towards a shore. Cyclone PowerPoint templates and Cyclone PowerPoint backgrounds for presentations ready to download. Two cyclones – Cyclone Phailin and Cyclone Hudhud caused extreme damage to life and property in India in recent times. Cyclones are powerful storms that generate strong windspeeds and have the potential to trigger sudden and heavy rain in the affected areas. As we know, cyclones are formed in ocean but; “how it forms”. On 3rd May 2019 Fani Cyclone hit Odisha's coastal area. Compared to the system of naming storms and hurricanes, naming tropical cyclones is a rather recent convention. Tropical Cyclones (TC) are intense low pressure systems that develop over the seas or oceans in the tropical and subtropical regions. These cyclones will lead to heavy wind and rain. By the late 1970s this list grew to include male and female names. Let’s analyse those chain of events one by one : 1. 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