In this activity we had to investigate moisture and its affects. Moisture avection is the movement of water vapor in the atmosphere and it is a critical factor in precipitation. I learned about dewpoints, which measure the amount of water vapor in the atmosphere. Moisture avection, which is driven by atmospheric convection currents, transports the water vapor in the air, and when a large amount condenses in the air, clouds form. When enough moisture collects in this way, it falls to the ground as precipitation. This is important to my topic because hurricanes have thunderstorms which help build the storms, and the more moisture, the bigger the storm.
Sources:
http://en.wikipedia.org/wiki/Moisture
http://www.miamisci.org/hurricane/moisture.html
"Hurricane"
Hurricanes are very deadly and very dangerous. Hurricanes are severe tropical storms that form in the southern Atlantic Ocean, Caribbean Sea, Gulf of Mexico, and in the eastern Pacific Ocean.
http://www.weatherwizkids.com/hurricane1.htm
(http://www.physicalgeography.net/fundamentals)
Hurricanes gather their heat and energy through contact with warm ocean waters. Hurricanes increase their power by evaporation of seawater. Hurricanes rotate in a counter-clockwise direction around the center, which is called the eye. The eye is the calmest part of the storm. Hurricanes have winds at least 74 miles per hour and up to 200 miles per hour. When they come onto land, the heavy rain, strong winds and heavy waves can damage buildings, trees and cars. The heavy waves are called a storm surge.
Hurricane Classification
Hurricanes are classified into five categories, based on their wind speeds and potential to cause damage.
- Category One -- Winds 74-95 miles per hour
- Category Two -- Winds 96-110 miles per hour
- Category Three -- Winds 111-130 miles per hour
- Category Four -- Winds 131-155 miles per hour
- Category Five -- Winds greater than 155 miles per hour
http://www.fema.gov/kids/hurr.htm
What is storm surge?
Storm surges are the most devastating element of a hurricane. As a hurricane spirals around the storm, they push water into a mound at the storm’s center. This mound of water becomes dangerous when the storm reaches land because it causes flooding along the coast. The water piles up, unable to escape anywhere but on land as the storm carries it landward. A hurricane will cause more storm surge in areas where the ocean floor slopes gradually. This causes major flooding.
What happens to the environment and the people?
These pictures pretty much sum up what happens to the enviorment and the people after a hurricane comes through their city or state. Everything and everyone is destroyed.
(http://upload.wikimedia.org/wikipedia/Hurricane_katrina.jpg)
(http://upload.wikimedia.org/wikipedia/commons/thumb)
What is the difference between a hurricane and a typhoon?
There is no significant difference between a hurricane and a typhoon except geography. Tropical storms occur in several of the oceans, and except for their names, they are essentially the same type of storm. In the Atlantic Ocean, Gulf of Mexico, and the Eastern Pacific Ocean, they are called hurricanes. In the Western Pacific Ocean, they are called typhoons. In the Indian Ocean, the Bay of Bengal, and Australia, these types of storms are called cyclones.
www.weatherwizkids.com/hurricane1.htm
How are hurricanes predicted?
Weather is really hard to predict, so trying to predict a hurricane would be impossible. Hurricanes form over the ocean where there aren't any weather stations. Forecastors have to use information from Hurricane Hunters to make a forecast. Forecastors try and predict if a hurricane will make it to land. If it does, then they have to warn people where the hurricane will land. Forecastors issue watches and warnings to let people know if they should evacuate. It's expensive to evacuate, so they want to be as accurate as possible. They also put out a strike probability so people know their chances of being in the path of the hurricane.
(http://www.windows.ucar.edu)
(http://news.nationalgeographic.com/news/2005)
(http://news.nationalgeographic.com/news/2005)
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