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  1. 1. By: Anthony Perno
  2. 2.  When air is compressed or allowed to expand When air expands it cools, when it compress it warms Dry adiabatic rate is the cooling or getting warmer in unsatured air
  3. 3.  Mountains act as barriers to air flow When air goes up a mountain, cooing often makes clouds and precipitation By the time the air reaches the leeward side most of the moisture is gone
  4. 4.  Warm and cold air collide, producing a front Cooler, denser air acts as a barrier as the warmer, less dense air rises Weather-producing fronts are associated with storm systems
  5. 5.  When air flows from more than one direction it flows upward because it can’t go down Leads to adiabatic cooling and clod formation Air movement and the rise of it is helped by solar heating of the land
  6. 6.  When warm air rise’s above the condensation level, clouds form Air that is warmer and less dense than the air around the less dense air will move upward The process that produces rising thermals is localized convective lifting
  7. 7.  Air that is cooler and more dense tends to sink to its original position which is stable air If the air is warmer and less dense than the surrounding air it will began to rise, this is called unstable air When stable gets forced into the Earth’s surface clouds that are formed widespread and have little thickness
  8. 8.  Happens when water vapor in the air turns into liquid For any of this to happen the air must be saturated Saturation occurs when the air is cooled to its dew point
  9. 9.  Basic form’s of clouds are cirrus, cumulus, and stratus Cirrus- clouds are high white and thin Cumulus- a pile of clouds Stratus- a layer of clouds that cover most of the sky
  10. 10.  All high clouds are thin and white Not considered precipitation makers Sometimes made up of ice crystals because low temperature and small amount on water vapor presents at high altitudes
  11. 11.  Clouds that are in the middle of the sky Altocumulus clouds are composed of rounded masses Altostratus clouds create a uniform white sheet covering the sky
  12. 12.  These clouds are developed in stable air Three members in the low cloud family: stratus, stratocumulus, and nimbostratus Sometimes these clouds can produce light precipitation
  13. 13.  All related to one another and all have unstable air Clouds have their bases in the low height range but tends to rise upward into the middle When clouds move upward and acceleration is powerful clouds with great vertical range form
  14. 14.  Fog is pretty much a cloud near or on the ground’s surface Fog can form when enough water vapor is added to the air When fog is dense enough its visibility is a few meters or less, making it hard to see when driving
  15. 15.  Cloud droplets do not freeze at 0 degrees Freezing nuclei can cause supercooled water to freeze Any left over water vapor becomes ice that lowers the relative humidity near the rest of the other droplets
  16. 16.  Some water-absorbing particles can remove water vapor from the air at relative humidities less than 100% When bigger water droplets move throw the air they collide with smaller ones Rainfall an be associated with clouds located below the freezing level
  17. 17.  Rain means drops of water falling from a cloud Snowflakes usually melt before they hit the ground and turn into rain as they fall There are light and fluffy snowflakes and ice crystals join into larger clumps to make then harder
  18. 18.  Sleet is small particles of clear ice falling from cloud Glaze is freezing rain that when raindrops becomes super cooled as they fall threw the air Hail is made in cumulonimbus clouds
  19. 19. THE END!!!!!!!!!!!!!!