Презентація "Hurricanes"

‘Hurricanes’

A tropical cyclone is a rapidly rotating storm system with a low-pressure centre, a closed low-level circulation, strong winds, and a spiral arrangement of thunder- storms that produce heavy rain and squalls.

Depending on its location and strength, a tropical cyclone is calleda hurricane typhoontropical storm cyclonic stormtropical depression or simply a cyclone.

A hurricane is a strong tropical cyclone that originates in the Atlantic Ocean or the north-eastern Pacific Ocean. A typhoon is forming in the north-western part of the Pacific Ocean. In the Indian Ocean and the South Pacific, such storms are called "tropical cyclones."

Structure of a Hurricane

Formation of a Hurricane The main source of energy for a hurricane is warm ocean water. Evaporating, water turns into water vapor. This vapor rises and cools. During cooling, the water vapor condenses. And it forms clouds and releases heat energy.

The Coriolis force, caused by the Earth's rotation, causes air masses to rotate around a low pressure centre. An area of ​​very low atmospheric pressure forms in the centre. Air tends to fill this area, resulting in strong winds. Hurricane strength is rated on the Saffir-Simpson scale. It takes into account wind speed, atmospheric pressure and potential damage.

The Strongest Hurricane Typhoon Patricia is one of the strongest hurricanes. It hit the Mexican coast in 2015. The wind speed at its epicentre reached an incredible 325 km/h.

Hurricane Milton hit the US state of Florida last week. It is an extremely powerful Category 5 Atlantic hurricane, and is the second most powerful tropical cyclone ever recorded over the Gulf of Mexico after Hurricane Rita in 2005. Hurricane Milton caused $50 billion in damage and killed more than 15 people

The strongest hurricanes in history: Haiyan (Philippines, 2013) is one of the deadliest typhoons in history. Katrina (USA, 2005) - led to catastrophic floods in New Orleans."Andrew" (USA, 1992) is one of the most destructive hurricanes to hit the USA. Labor Day (1935) - occurred in Florida, USA, is considered one of the strongest hurricanes ever to hit the USA. Wind speed reached 305 km/h. Camilla (1969) - registered on the southeast coast of the USA. Among the consequences are large-scale landslides, destruction of coastal cities, hundreds of dead. Irma (2017) - occurred in the Caribbean islands and in Florida. One of the most powerful Atlantic hurricanes in history. This caused enormous damage to the infrastructure.