What Causes Hurricanes?

Pre-conditions for hurricanes

Several ingredients must be met for the air to form a hurricane. There are about seven atmospheric conditions which, if met, can cause a hurricane to form. Pre-existing disturbance, warm ocean water, low atmospheric stability, sufficient Coriolis force, moist environment, the upper atmosphere and divergence are important factors for hurricane formation. These conditions are described in more detail in another article by Rich Johnson called How do hurricanes form? These factors are important in this huge amount of heat energy is transported from the tropics northward to higher latitudes. A hurricane is a large engine, where large amounts of heat are produced from the process of latent heat of condensation. This occurs, water vapor evaporates from the ocean surface and condenses into cloud droplets.

Mechanisms leading to the formation of hurricanes

If all the boundary conditions are met, the formation of hurricanes becomes possible. There are different types of atmospheric disturbances, which can cause a hurricane to develop. The most common mechanism of development of hurricanes is the monsoon through. This is a continuation of the Inter-Tropical Convergence cyclone that developed into a spin. ITCZ is a zone of low pressure created by the convergence of the North-east and south-east trade winds. This "wind trade" does not include a selection means to initiate the formation of a hurricane. Hurricanes are caused mainly by the monsoon six of seven hurricane formation of the river in the world. North Atlantic basin is the exception.

In the north basin hurricanes in the Atlantic, the waves of the east are the main cause of the formation of hurricanes. These waves or troughs of low pressure formed over North Africa, then move off the African coast in the Atlantic. Sometimes, a squall line or African WADL act like a wave from the east and cause a hurricane to form.

Another cause of hurricane formation is the grave of the upper tropical troposphere (Tutt). The low altitude is cold in nature in relation to their environment. A typical low pressure center that forms a hurricane starts to lower levels and warm relationship with their environment. If a TUTT low remains over warm ocean waters for several days, sometimes slowly heated and has tropical characteristics. At this point the low "built" on the bottom surface of the upper atmosphere. The "cold" low pressure system becomes a "hot" and starts a tropical development.

Another cause of hurricane development is a stand before the tropical waters. Inherently, a front has a cyclonic spin associated with it. If the upper winds are favorable for low wind shear, could be showers and storms are becoming more and cause a hurricane to form.

Finally, the mesoscale convective system, or MCS can sometimes be the cause of tropical cyclone development. These organized groups of storms can move away from the continental landmass and drift over warm waters. If they already contain a small group vortex, this can make the area even more favorable to the development of tropical cyclones. Again, by far, the waves due east over the Atlantic Ocean hurricanes formed. Research has shown about 60% of the hurricanes, and 85% of major hurricanes in the form of waves in the east. Otherwise, most hurricanes caused by the monsoon through the round the world.