Do you know about - What Makes A Hurricane?
Texas Eye! Again, for I know. Ready to share new things that are useful. You and your friends.Hurricanes need warm tropical oceans, moisture and light winds above them. If the right conditions last long enough, a hurricane can produce violent winds, incredible waves, torrential rains and floods. In other regions of the world, these types of storms have different names.
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We had a good read. For the benefit of yourself. Be sure to read to the end. I want you to get good knowledge from Texas Eye.Hurricanes rotate in a counter clockwise direction around an "eye." A tropical storm becomes a hurricane when winds reach 74 mph. There are on average six Atlantic hurricanes each year; over a three-year period, approximately five hurricanes strike the United States coastline from Texas to Maine. The Atlantic hurricane season begins June 1 and ends November 30. The East Pacific hurricane season runs from May 15 through November 30, with peak activity occurring during July through September. In a normal season, the East Pacific would expect 15 or 16 tropical storms. Nine of these would become hurricanes, of which four or five would be major hurricanes.
When hurricanes move onto land, the heavy rain, strong winds and heavy waves can damage buildings, trees and cars. The heavy waves are called a storm surge. Storm surge is very dangerous and a major reason why you MUST stay away from the ocean during a hurricane.
The generic name for a hurricane is tropical cyclone. These storms are called typhoons when they occur in the western Pacific Ocean, and cyclones in the Indian and southern Pacific Oceans.
What a hurricane looks like:
Eye
The centre of a hurricane is known as the eye of the storm. When seen from above, this eye is in the middle of the hurricane and looks cloud free. It is clear because the air has a downward, or sinking, motion, and since clouds require rising air to form, the eye of the hurricane has no clouds. This calm, however, is deceptive. The eye still has some wind and rain but it is calm compared with the rest of the violent storm.
Eye Wall
Have you ever noticed that an ice skater spins faster when she pulls in her arms? The same thing happens to clouds as they are pulled by the low pressure of the eye into the centre of the hurricane. When looking at a hurricane from above, you will see this area called the eye wall -- looking like a bright cloud ring right around the eye. It is the broad band immediately surrounding the eye and is where the storm is the worst.
Feeder Bands
Feeder bands are what give energy to -- or feed -- a hurricane. They are the long zones of clouds, showers, and thundershower activity that get their moisture over warm water. This is why there are hurricanes over the ocean and on the coastline. You will never find a hurricane in the desert. There can be one or more feeder bands energizing a hurricane.
What makes a hurricane?
o Ocean water temperatures of at least 80º Fahrenheit. This provides the storm with heat energy it needs to grow. That's why hurricanes in the Northern Hemisphere form in June through November, when ocean temperatures are warmest. September 10 is the peak of the Atlantic Ocean's hurricane season.
o Low wind shear from the top to the bottom of the atmosphere. For example, if the winds at the oceans' surface are light, and winds at high altitude over the tropical wave are strong, this "shear" will act to tear the developing hurricane apart.
o Something to get the tropical wave spinning. This is usually provided by a low-pressure system or front that moves from land over the tropical ocean. The part of the Earth's spin that points straight up at the point of interest, or the Coriolis force, must help get the storm spinning. Near the equator, the Coriolis force is zero, so no hurricanes form within about 500 miles of the equator.
More about Hurricanes
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