Severe Weather Storms: Hurricanes and Tornadoes

Topics: Tropical cyclone, Tornado, Wind Pages: 5 (2214 words) Published: May 9, 2011
Severe Weather Storms: Hurricanes and Tornadoes

A hurricane is an extremely violent tropical cyclone. The origin of the term Hurricane originates from a Mayan Storm god by the name of Hurakan. He was a Central American idol who believably caused the storms. Years later, the hypothesis of someone creating angry storms has been corrected. It is known that these storms are an act of nature by God’s laws at work. The term hurricane just stuck with the weather condition. Another source states that the origin of the term was derived from a Carib term that means ‘God of Evil.’ The term is a Spanish word; huracn. The creation of a Hurricane begins as the heat rays from the sun hit the waters of the ocean. This causes evaporation. When it evaporates, the weather is still warm due to the temper of the heat rays. As the saying goes, “heat rises’, well, so does the moisture/evaporated water from the ocean until it’s cooled down by air pressure. Depending on the next phase of whether or not the cloud continues to grow or becomes heavily filled with moisture determines the chances of heavy rain, thunderstorms, or a tropical disaster. A tropical disaster is a thunderstorm with cyclonic circulation, which carries winds less than 20 knots’ at least 30mph wind speed. If the situation escalades towards the descriptions of a Hurricane, the NGC (National Hurricane Center) based in Miami, FL triggers its movements and watches. The seasons of watch are primarily summer and fall; due to the heated temperatures. Though these seasons are not the only times of watch, it is monitored year round. If the clouds continued to grow without any form of disturbance, or breaking up within the clouds, it is considered a tropical depression. In a tropical depression, the clouds still move over the ocean which it picks up more moisture and speed of the wind which creates a larger problem called a tropical storm. The winds are tracked at least at 39 mph. The tropical storm is officially considered a hurricane once the speed of the wind increases to 75 mph. The presenting conditions needed for a hurricane is temperature, pressure, volume, and density. If you are to combine these variables into the troposphere at the warm to high levels, you’ll have the storm. But depending on the amounts, one may be more severe or less severe than the other. Step by step, in order for a Hurricane to exist, it needs to have more than an 80°F temperature in the ocean. This not only gives the hurricane energy, but, it makes the air much more humid due to the evaporated water. While this occurs in the air, the wind is already coming together from different directions forcing the warm air in an upward direction for cooling. These winds begin to spread outward allowing more air to be compacted. The air that has risen creates the storm clouds while the winds from the opposite direction are coming against it counterclockwise rotation, and expand the size of the clouds, which now are creating the storm. Before we consider a Hurricane to be a hurricane it goes through a series of phases of growing and maturing. We see a slight chance of a hurricane in a tropical disturbance, which is monitored. The tropical disturbance is only a thunderstorm that has a very mild cyclonic circulation. If the wind speeds during the disturbance, it increases between 23 and 39 mph. It is then classified as a tropical depression. This is considered phase 2. Phase 3 of the storm is another increasing increment of wind speeds between 40 and 73 mph, classifying the storm as a tropical storm. This is the last phase before the storm is considered a full, Hurricane with wind speeds greater than 74 miles per hour. The next procedure in this is the calculations of the hurricanes strength. The wind speed is a determining factor of the hurricane’s strength. It is based between category 1 and category 5. To determine where to place the Hurricane, we also need to know the flooding and...
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