NATURAL PHENOMENON : TORNADO

    Tornado is one of natural disasters which's happen not by human hand but by natural itself. Tornado in scientist explanation is a violently rotating column of air that is in contact with both the surface of the earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud. They are often referred to as twister or cyclone although the word cyclone is used in meteorology, in a wider sense, to name any closed low pressure circulation. Tornadoes come in many shapes and sizes, but they are typically in the form of a visible condensation funnel, whose narrow end touches the earth and is often encircled by a cloud of debbrist anddust. Most tornadoes have wind speeds less than 110 miles per hour (177 km/h), are about 250 feet (76 m) across, and travel a few miles (several kilometers) before dissipating. The most extreme tornadoes can attain wind speeds of more than 300 miles per hour (483 km/h), stretch more than two miles (3.2 km) across, and stay on the ground for dozens of miles (more than 100 km).

    

     There are a lot of kinds of tornadoes which exist in some part of the world. Various types of tornadoes include the landspout multiple vortex tornado, and waterspout. Waterspouts are characterized by a spiraling funnel-shaped wind current, connecting to a large cumulus or cumulonimbus cloud. They are generally classified as non-supercellular tornadoes that develop over bodies of water, but there is disagreement over whether to classify them as true tornadoes. These spiraling columns of air frequently develop in tropical areas close to the equator, and are less common at high lattitudes Other tornado-like phenomena that exist in nature include the gusnado, dust devil  and steam devil down burts are frequently confused with tornadoes, though their action is dissimilar.

     Tornadoes have been observed on every continent except Antarctica. Fortunately it doesn't occur in our country, Indonesia which is palced in the equator. However, the vast majority of tornadoes occur in the Tornado Alleyregion of the United States, although they can occur nearly anywhere in North America. They also occasionally occur in south-central and eastern Asia, northern and east-central South America, Southern Africa, northwestern and southeast Europe, western and southeastern Australia, and New Zealand. Tornadoes can be detected before or as they occur through the use of Pulse dopples Radar by recognizing patterns in velocity and reflectivity data, such as hooks echoes and debris balls, as well as by the efforts of storm spotters.

Here are some photos of tornadoes

A man is watching a tornado coming towards him 

The Impact and destructions affected by tornado

A Tornado could also occur in the open sea