Tropical cyclone Giselle linked up with an already established front further south and caused a vicious storm which sank the Lyttelton-Wellington ferry, killing 51 people on that day.

The warm air tends to rise and causes a drop in the pressure. They can be dangerous because of flooding and because the winds pick up objects, including things as big as small boats. Specification Causes of tropical cyclone hazards, including ocean temperature, atmospheric pressure, wind shear and Coriolis force. This causes thunderstorms to spin in a circular motion and a cyclone is created. This cycle is repeated. Cyclones have two types of gale force winds at the eye and they are known as sustained winds and gusts. Also called typhoons and hurricanes, cyclones strike regions as far apart as the Gulf Coast of North America, northwestern Australia, and eastern India. Tropical cyclone, an intense circular storm that originates over warm tropical oceans and is characterized by low atmospheric pressure, high winds, and heavy rain. Causes of Tropical Cyclones. The air moves from surrounding high-pressure areas to the central low-pressure area.

Factors Affecting Cyclone 1.

What is the minimum ocean surface temperature that is required for a tropical cyclone to form? Most tropical cyclones create fast winds and great rains.

A tropical cyclone is a circular air movement that starts over the warm ocean waters in the warm part of Earth near the Equator.

The chain of events leads to the formation of very low-pressure system surrounded by with very high-speed winds. Draw a diagram to explain your answer.

1. Sustained winds can have a speed of 63km/h or more and gusts surpass the speed of 90km/h. Ocean Temperature. This weather condition is a cyclone.

While some tropical cyclones stay out in the sea, others pass over land.


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