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Air Masses

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FC: Air Masses By: Krista Kiefer

2: What is wind? WInd is a natural thing that you can not see, hear, or even smell. It is caused by the different pressures in the atmospheric area. If it wasn't for the EArth rotating wind would go from high-pressure to low-pressure.

3: Wind belts are broad air current zones that make up our Earth's general air circulation system. There are five different wind belts, they move with the sun and they are known as primary wind belts.

6: There are four categories: high, mid-level, low, and miscellaneous clouds. By looking at the different types of clouds you have a pretty good idea about what the weather is going to be like.

7: High Clouds: Cirrus clouds usually show that it's going to be fairly good weather. If there is a gradual increase of cirrus clouds that could mean that a warm front is coming.

8: Mid- Level Clouds: Alto Cumulus clouds show it's going to be warm, humid, and stick in the morning. And night showers and thunderstorms are very likely.

9: Low Clouds: Cumulus clouds usually only make fair and dry conditions. If it does rail then it will be light and short showers. Cumulus clouds only last a few hours at a time. These clouds can grow bigger and upwards making cumulonimbus clouds which cause thunderstorms, hail, tornadoes.

10: Air mass- An immense Body of air that is characterized by similar temperatures and amounts of moisture at any given altitude. | As an air mass moves from the north to the south. If it starts out really cold as it moves south it gets warmer. But it also brings some of the cold weather of the winter to the places in its path. As it moves, the characteristics of an air mass change and so does the weather in the area over which the air mass moves.

12: Warm Front- A warm front forms when warm air moves into an area formerly covered by cooler air. As warm air rises, it cools to produces clouds, and frequently precipitation. Because of their slow rate of movement and low slope, warm fronts usually produce light-to-moderate precipitation over large areas for an extended period. | Cold Fronts- A cold front forms when cold, dense air moves into a region occupied by warmer air. Cold fronts are about twice as steep as warm fronts and advance more rapidly than warm fronts do. Usually faster rate and steepness of slope account for violent weather associated with the cold front. Once it's passed temperatures drop and wind shifts. | Occluded Fronts- When an active cold front overtakes a warm front, an occluded front forms. The cold air wedges the warm front upward. Most precipitation is associated with the warm air's being forced upward.

14: http://curiosity.discovery.com/question/what-are-wind-belts http://www.wikihow.com/Forecast-the-Weather-Using-Clouds

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  • By: Krista K.
  • Joined: about 4 years ago
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  • Title: Air Masses
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  • Published: about 4 years ago

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