Formation Of Hurricane


Worldwide, tropical hurricane activity maxes out in late summer, when the difference between temperatures sea surface and aloft is the greatest. Hurricanes facts reflect that each particular basin however has its own seasonal patterns. In the Northern Atlantic Ocean, the hurricane season lasts from June 1 to November 30, while the Northeast Pacific Ocean has a wider period of activity. In the Southern Hemisphere, the tropical cyclone year commences on July 1 and runs all year round. Let us take a look in the formation of hurricane.


The main factors behind the hurricane formation are the waves in the trade winds in the Atlantic Ocean. These converging winds move along the same path as the prevailing wind, thus creating disturbances in the atmosphere that lead to the development of hurricanes.


There is still widespread ongoing research on the topic of formation of hurricanes and the process is still not fully understood. Generally, six factors appear to be necessary for hurricane formation, but these can occur without meeting all of the conditions. But in most situations, water temperatures of at least 26.5 °C are required to go to a distance downward of at least 50 m. The waters with this temperature cause the atmosphere overlying to become unbalanced enough leading to convections and thunderstorms.


Another factor responsible for the development of hurricane is rapid cooling with height. This allows the discharge of the heat of condensation thus powering a hurricane or cyclone. When there is a great amount of moisture in the atmosphere, the conditions are said to be more favorable for disturbances to develop, especially in the lower-to-mid troposphere. Low amounts of wind shear are desired, as high shear is unsettles the storm's circulation. Lastly, a pre-existing system of disturbed weather is a must for the formation of hurricane, although no hurricane development will take place without a circulation.


Another significant source of atmospheric volatility is found in tropical waves, which are the cause behind 85% of intense tropical hurricanes in the Atlantic Ocean, and most of the tropical cyclones in the Eastern Pacific basin. Most tropical hurricanes formed all across the world are called by several names: the Intertropical Front (ITF), the Intertropical Convergence Zone (ITCZ), or the monsoon trough.