Hurricanes: Deadly and Unavoidable

Only available on StudyMode
  • Download(s) : 9
  • Published : January 30, 2013
Open Document
Text Preview
Hurricanes: Deadly and Unavoidable

Earth has many weather changes throughout the year and certain periods of climate called seasons. These seasons are called winter, spring, summer, and fall; each of these seasons brings a certain type of weather. For example, winter would bring you cold days and nights with high chances of snow every now and then. Summer, on the other hand, will give you humid or dry hot days with really warm nights with the casual thunderstorm. These weather changes are all normal and manageable but there are some that are uncontrollable and potentially deadly. One of these surprisingly dangerous abnormalities is called Hurricanes. A hurricane is an intense, rotating oceanic weather system that possesses maximum sustained winds exceeding 74 mph. It forms and intensifies over tropical oceanic regions. Hurricanes are generally smaller than storms in mid-latitudes, typically about 311 miles in diameter. At the ocean’s surface, the air spirals inward in a counterclockwise direction. This cyclonic circulation becomes weaker with height, eventually turning into clockwise outflow near the top of the storm. Hurricanes begin as tropical storms over the warm moist waters of the Atlantic and Pacific Oceans near the equator. As the moisture evaporates it rises until enormous amounts of heated moist air are twisted high in the atmosphere. The winds begin to circle counterclockwise north of the equator or clockwise south of the equator. The relatively peaceful center of the hurricane is called the eye. Around this center, winds move at speeds between 74 and 200 miles per hour. As long as the hurricane remains over waters 79 degrees Fahrenheit or warmer, it continues to pull moisture from the surface and grow in size and force. When a hurricane crosses land or cooler waters, it loses its source of power, and its wind gradually slows down until there is no longer hurricane force. This is when the winds are less than 74 miles per hour.
tracking img