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Weather
Weather
Weather
Weather
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Weather

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Transcript

  • 1. Weather
  • 2. What is weather?
    • Refers to the state of the atmosphere at a specific time and place.
    • The one thing that you can talk to anybody about
    • If you don’t like the weather just wait around it will change in Harrisburg
    • What are some of the factors that affect the weather?
  • 3. Air Temperature
    • Temperature is the measure of the average amount of motion in particles.
  • 4. Wind
    • a natural movement of air of any velocity; especially : the earth's air or the gas surrounding a planet in natural motion horizontally
  • 5. Humidity
    • The amount of water vapor present in the air
    • Relative Humidity -is a measure of the amount of water vapor present in the air compared to the amount needed for saturation at a specific temperature
  • 6. Clouds
    • Masses of small water droplets or tiny ice crystals that float in the air.
    • Three main types are cirrus, cumulus, and stratus.
    • Other clouds are a mixture of these three main types.
  • 7. Cloud Formation
  • 8. Cirrus
    • Cirro- means “curled” or “feathery”
    • Form highest in the sky; are made up of ice crystals; and appear as curls, tufts, or wisps.
    • Usually signal the end of clear weather.
  • 9. Cumulus
    • Cumulo- means “heaped” or “piled”
    • Cottony clouds with flat, usually gray bases, and puffy, bright tops.
    • Usually signal good weather, but if atmosphere is unstable, can build into towering clouds that produce showers and thunderstorms.
  • 10. Stratus
    • Strato- means “layer-like” or “sheet-like.”
    • Low-lying, dull-colored clouds that form in layers or sheets.
    • Usually bring drizzling rain or light-falling snow.
  • 11. Alto
    • A prefix meaning “middle range of clouds “ and used to describe clouds that lie from 6,500-18,500 ft. (1,980-5,640m).
  • 12. Nimbus
    • A rain cloud
  • 13.  
  • 14. Other Cloud Types Cirrocumulus Cirrostratus Stratocumulus Cumulonimbus
  • 15. More Cloud Types Altocumulus Altostratus Nimbostratus
  • 16. Precipitation
    • Water that falls from the clouds
    • Air temperature determines the form of precipitation that falls
    • 4 main types of Precipitation: Rain, Sleet, Snow and Hail
  • 17. Types of Precipitation Rain Sleet Snow Hail
  • 18. Air Masses
    • A large body of air that has properties similar to the part of the Earth’s surface over which it develops.
  • 19.  
  • 20. Air Mass Map
  • 21. Fronts
    • A boundary between two air masses of different density, moisture, or temperature.
  • 22. Cold Front
  • 23. Warm Front
  • 24. Occluded Front
  • 25. Stationary Front
  • 26. Severe Weather Thunderstorms Lightning Tornadoes
  • 27. More Severe Weather Hurricanes Blizzards
  • 28. Severe Weather Safety
    • Watches- conditions are favorable
    • Warnings- conditions already exist
    • Examples- Tornadoes, Flooding, Thunderstorms, Blizzards, Winter Mixes and Hurricanes
  • 29.  
  • 30. Lightning
  • 31.  
  • 32. Tornado Alley
  • 33. Fujiti Scale
  • 34.  
  • 35. Weather Map
  • 36. Hurricane
  • 37. Hurricane Scale
  • 38. Hurricane Charley
  • 39.
    • Two sources of forecasting weather
      • Data collected from upper atmosphere
      • Data collected on the Earth’s surface
    NWS
  • 40. Weather Station Model
  • 41. Isobars
    • Isobars-connect points of the “same”
    • Examples: temperature and wind speed
    • The further away the lines the lower the wind speed
  • 42. This powerpoint was kindly donated to www.worldofteaching.com http://www.worldofteaching.com is home to over a thousand powerpoints submitted by teachers. This is a completely free site and requires no registration. Please visit and I hope it will help in your teaching.

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