Reasons behind occurrence of hurricanes

February 20th, 2009

Hurricanes are tropical cyclones characterized by low pressure center and produce strong winds with flooding rains. Heat of condensation is the prime factor behind occurrence of hurricane. A cyclone has to reach at some specific intensity for acting as hurricane. It needs to pass through two transitional stages which are known as Tropical Depression and Tropical storm. Storms get collected in the tropics which lead to origin of hurricane from ocean. Thermal energy from the surface of ocean with deepening low-pressure center in moist air lifts the air with high pressure in atmosphere that pushes it in an outward movement.

Wind rotation changes the spin of clouds by giving a tight curl. As the wind moves with a gust, depression between the two stages forms a tropical storm. If we focus on shape of high intensity hurricane, we found it circularly symmetrical and with an influence extending over an area of 805 km in diameter. Circumference of this circle is defined as eye wall. This circular shaped hurricane is comprised of moistened air which causes condensation and after it there is a connected release of latent heat takes place from it.

Air push up reaches to a height of thousands of feet above the surface and finally get expelled towards the zone of storm’s fringe. This makes different bands of clouds with velocity of air and condensation to eye wall region. An increase in outward pressure also plays role to maximize wind speed. Temperature of eye wall zone of hurricane is warmer as compare to other surrounding fringes of hurricane.

Hurricane Season

February 16th, 2009

A storm is a distressed state; marked by thunder, lightning and strong winds. Hurricane is also a kind of strong storm but it is nastier than other natural disasters. It usually comes with strong winds and lightening. This storm also gets violent as it hits land, begins over a warm sea and can create huge damage. Flooding, huge waves, graving rains are the results of this storm.

Hurricanes are different from Typhoons as it all depends on the label of the place from where they are occurring. If they begin on the North zone of Atlantic Ocean, Pacific Ocean then they are named as Hurricanes and if they occur at west of the imaginary International Date Line then they are labeled typhoons. Hurricane creates the severe conditions with a huge damage of the things as well as life.

Hurricane occurs when a tropical storm starts to infuse over the ocean. The moment this storm makes get in touch with warm ocean water (temperature of the water is above 26.5 degrees Celsius (80 F)) — the storm’s heat and energy get deepen. Wind starts rotating counterclockwise around a calm center (the “eye”). When the continual speed of wind reaches 74 mi (119 km) per hour, that storm is named as a hurricane.

Hurricane can be further classified as Category 1 Hurricane, Category 2 Hurricane; on the basis of wind speed. In the simple words, we can say that Hurricanes get ranked by its wind speed. The harshness created by a Hurricane in terms of its force is measured by the Saffir-Simpson Scale, on a scale of 1-5, with 5 being the most severe out of all.

We can’t even think about people living in the Hurricane prone area, they just need to protect their property, their shelter. People really need to work with professionals to secure their home. It is also a wise decision to get insured especially in that case people need to purchase Flood Insurance. So that future becomes safe.

Once a Hurricane warning has been announced, you need to secure your home or boat and better thing is to consider evacuating the area. Hurricanes can last anywhere from one day to one month, so people generally require disaster kits at that time. Disaster kits include water, food, blankets, clothing, first aid, batteries, tools and also some pet care supplies.

Hurricanes cause extensive damage in the months of July to October. Till the date Hurricanes cause extreme harsh conditions in along the Atlantic and Gulf Coast of the United States.

Hurricane is also a natural disaster and is not in the hands of normal people. We can only pray for the sleep of such disasters.