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Tyler Hamilton Natural Disasters 12/4/13 Eportfolio Project Thunderstorms I choose to do my Eportfolio Project on Thunderstorms, the way that they start, and the scientific explanation of what is happening during a thunderstorm. What is a thunderstorm? It is a storm that has lightning and thunder. Thunderstorms are usually associated with strong winds, heavy rain, and sometimes even snow, sleet, and hail. Although thunderstorms have typically some precipitation, they do not have to have any precipitation at all. There are four types of thunderstorms: single-cell, multicell cluster, multicell lines, and supercells. Supercell thunderstorms are the strongest and is associated with the most severe weather. Thunderstorms are caused by strong upward movement of warm, moist air. While the warm, moist air rises, it starts to cool and eventually starts to condense and starts to form clouds. As the rising air reaches its dew point, water droplets start to fall from the sky towards the earth. As the droplets are falling, they start to collide with one another making the droplets bigger and is what we see down on earth’s surface during a thunderstorm. Thunderstorms are more popular in areas of mid-latitude. The reason for this is because the warm air collides with the cooler air more frequently in areas of the Mid-West of the states, solely because of the climate they are in. In a study, it is said that though thunderstorms can happen at all hours of the day, but they are most likely to be during the spring and summer months during the afternoon and evening hours. The damage that a thunderstorm can have is endless but the most prevalent way is through heavy winds, large hailstone storms, and flash flooding due to the heavy precipitation. Although these are the most common damages that thunderstorms can cause, it is definitely not the only. Depending on how intense the thunderstorm is, it can lead to potential tornadoes. In conclusion I will leave you with some fun facts about thunderstorms! The typical thunderstorm is 15 miles in diameter and lasts about 30 minutes. Nearly 1800 thunderstorms are happening at any point in time around the world. That is about 16 million a year! Thunderstorms kill more people each year than tornadoes do. You can estimate how far you are away from the thunderstorm by counting how many seconds from the sight of lightning until the clap of thunder. Divide the number of seconds by five to get how many miles you are away. Despite the size of the thunderstorm, all storms are dangerous. A picture of how a storm begins to form A picture of when the water droplets start to collide into one another and fall to the earth Works Cited http://www.weatherwizkids.com/weather-thunderstorms.htm http://www.factmonster.com/ipka/A0875669.html Picture Number 1: http://en.wikipedia.org/wiki/Thunderstorm Picture Number 2: http://www.softpedia.com/progScreenshots/Thunderstorm-3DScreenshot-76015.html