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Scientists have discovered how hurricanes form and move. Dr. Herr Ik Ain from Germany has revealed what scientists has discovered. He says that a typical hurricane forms in this way (if what happens to the wind is not just so, then the hurricane will not for): The first day, multiple thunderstorms grow, then cumulate. Two days later, those storms mix, making the air around them spiral, thus creating what is called a tropical depression. This occurs right over the ocean. Another two days later, the spiraling wind quickens and reaches 39 mph. Now, the wind is a tropical storm. Finally, on the seventh day of forming, the winds reach 74 mph. Whether the hurricane is the typical hurricane or not, it is only when the winds reach 74 mph that it is called a hurricane.
During the formation of the hurricane, the spiraling wind is rising up because of its heat, because hurricanes only form when there is a low pressure system over the ocean. That is so, because the warm air rises, cools, condenses, and makes clouds, when and where there is a low pressure system. So, since the warm air rises in a low pressure system, the spiraling wind also rises. When the wind goes up high in the atmosphere, if the other winds up there are calm, then the spiraling wind keeps in its form, and strengthens. If the winds are not calm, they would interfere with the form of the spiraling wind, and a hurricane would not form. Since most of the process occurs high up in the atmosphere, it is difficult to predict when there will be a hurricane. Also, the process of formation only lasts a week, which is a short time for such a large natural disaster to form, and a short time for scientists to predict such a large natural disaster.
The winds of a hurricane strengthen, weaken, quicken, and slow down because of certain reasons. Going over a warm ocean speeds up and strengthens the winds of a hurricane, because warm water evaporates from the ocean into the winds, which speed up the winds, and gives them more energy. On the contrary, going over land makes the hurricane lose energy and speed, because of the lack of moisture in the air. “The fact about losing energy over land is not a good thing. It means that it is impossible for a hurricane to form and not go over any land in its lifetime. That means that the moment a hurricane forms, it is almost certain that there will be disaster some inhabited place,” explained Dr. Ain’s colleague, Dr. Dezza Ster.
Dr. Ster also explained steering currents. Steering currents are the wind currents around a hurricane. They help the hurricane to maneuver. They come from a high pressure system, usually in the Caribbean Sea or the Atlantic Ocean, where the water level is up to 40,000 feet high. Hurricanes are quite difficult to understand, yet the scientists are making progress in understanding them. One day, perhaps they will be capable of predicting them.
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