Development and Lifecycles of Hurricanes

Development and Lifecycles of Hurricanes

Introduction

A hurricane is a tropical cyclone, accompanied by a large area of clouds with showers and storms (precipitation sharp, intense and of short duration, which can occur as snow, water or slush) and thunderstorms and winds exceeding 118 km / h. In the northern hemisphere winds rotate in the opposite direction of the water clock, and vice versa in the Southern Hemisphere, that is, in the sense of clockwise.

The strongest hurricane 'Wilma' which has been measured was up-graded as the first (282 kilometers per hour, 19 October 2005) within a few hours from a tropical storm (113 mph, 18 October 2005) into a hurricane of category 5. With 882 millibars, the lowest air pressure in Wilma's center that has ever been measured in the Atlantic Ocean enforced. When hurricanes reach the frontal zone of the middle latitudes, they can be converted into a non-tropical low pressure system (extra-tropical transition) and then even still bring heavy rains in USA. The development of an impending hurricane season can be predicted by a weather forecast.

Discussion

A hurricane is a tropical cyclone, accompanied by a large area of ??clouds, with rain, light rain and winds exceeding 118 km/h. We will see their ranking, as they form, stages or life cycle and tips and recommendations during a hurricane. The universal term Tropical Cyclone but has different names depending on where it occurs, in the Caribbean is called Hurricane (from the Mayan god of the winds, the same name), in the American Midwest is called Tromba Marina, in the Philippines, typhoons in the Indian Ocean, Tropical Typhoon and Australia is known as Willy-Willies.

Conditions favorable for the formation of a hurricane:

Temperature of the sea surface greater than 26.5 ° C.

Positive vorticity (i.e. the air near the sea surface has a potential turning).

Should there be a low surface pressure.

Convergence area (winds from different directions reach a point).

Difference in height (the winds go in different directions from a point).

Life cycle of a hurricane:

Training: The wind begins to rise around a low pressure center, the clouds begin to form and the atmospheric pressure at the center down to 1000 hPa.

Development and Growth: The wind continues to increase; the clouds are distributed in a spiral and begin to form a small eye, usually circular, where the winds are mild and no precipitation. The pressure drops in a small area.

Maturity: The wind reaches its maximum speed can reach up to 320 km / h. The cloud area extends up to its maximum amplitude (500 to 900 km in diameter) to produce heavy rainfall. The eye of the storm whose diameter varies between 24 and 40 km, an area is calm or light winds, clear of clouds.

Dissipation or Death: The wind begins to decrease but the heavy rain continues. The clouds begin to dissipate as the hurricane moves over land or a sea moves over land or water of low temperature. The active life of a hurricane from initial formation to its dissipation varies from a few days to several weeks.

Classification

According to Saffir-Simpson, fall from maximum sustained ...