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Hear a Music Clip

Clouds. Hear a Music Clip. Cloud Classification. 1. Based on Altitude. Appearance from the ground. High Level Clouds. Base of the Cloud is above 6000 m (over 20,000 feet) - very cold. - Thin and white in appearance. - Composed of ice crystals. Cirrus. WEATHER:

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Hear a Music Clip

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  1. Clouds Hear a Music Clip

  2. Cloud Classification 1.Based on Altitude Appearance from the ground

  3. High Level Clouds • Base of the Cloud is above 6000 m (over 20,000 feet) • - very cold - Thin and white in appearance - Composed of ice crystals

  4. Cirrus • WEATHER: • Usually associated with fair weather • Sometimes in advance of a storm system - Wispy or feathery in appearance - Called “Mares’ Tails”

  5. Cirro-Stratus • WEATHER: • Precipitation will follow - White-veined clouds that produce “halos” around sun or moon (due to light waves being bent by ice crystals)

  6. Cirrocumulus • Least common of high clouds - Appear like rippled sand or waves or fish scales http://aposf02.cityu.edu.hk/~ksliu/obs/cloud/Cirrocumulus1.jpg - “Mackeral Sky” • WEATHER: • Omen of good weather

  7. Mid Level Clouds • Bases appear between 2,000 & 6,000 m. • (10,000 – 20,000 feet) - Composed mainly of water droplets

  8. WEATHER: • consider fair weather, they often follow storms Alto-Cumulus - White to gray / larger than cirrocumulus • Puffy / often rippled or appear in waves - “Sheep-back” clouds

  9. Alto-stratus - Formless gray or bluish in color • Forms a thin veil over Sun or moon http://www.mmem.spschools.org/grade5science/weather/altostratus.jpeg WEATHER: - light precipitation is coming

  10. Low Level Clouds - Base below 2,000 m (under 10,000 feet) - Composed usually of water droplets unless the temperatures are very cold

  11. Cumulus - Dense, billowy clouds - Flat bases, developing vertically - Can be isolated or closely packed WEATHER: - Fair weather / lasts for a relatively short period of time then disappear

  12. Strato-Cumulus - Puffy, Soft, gray clouds - Rolling mass of thin lumpy clouds / often joined together / might appear in rows WEATHER: - Some precipitation with breaks of clear sky in between - Not long lasting

  13. Stratus - overcasted, Uniform cloud resembling fog • WEATHER: • rain or drizzle • Lift quickly and indicate a fine day ahead - low layer that covers entire sky

  14. Nimbo-stratus - Dark gray sheets that blot out the sum • WEATHER: • Indicative of lengthy precipitation • Light to moderate precipitation in the form of rain or snow depending on the temperature

  15. Other Clouds Contrails– High level / extremely cold temperatures formed from Jet engines Billows – unstable air flows

  16. Mammatus Clouds – examples of sinking air - harmless, but often seen after thunderstorms have passed. Pileus – smooth clouds capping over mountain tops

  17. OROGRAPHIC CLOUD clouds that develop in response to the forced lifting of air by the earth's topography

  18. Vertically Developed Clouds - Arise usually from swelling Cumulus - Grow to heights of over 39,000 feet by thermal convection of frontal lifting - Incredible amounts of energy

  19. Cumulo-nimbus • Towering Cloud - Often with “anvil head” • WEATHER: • Fast building / Squall line • - Heavy rainfall, thunder, lightning, hail & tornadoes

  20. TEST Number your paper 1 to 20 Remember the cloud classification

  21. 1 1. 3 3. 2 2. 4. 4 5. 5 6 6. 7 8. 7. 8 9 9. 10. 10

  22. 1 1. Cirrus 3 3. Cirrostratus 2 2. Cirrocumulus 4. Altocumulus 4 5. Altostratus 5 6 6. Nimbostratus 7 8. Cumulus 7. Stratus 8 9 9. Cumulonimbus 10. Stratocumulus 10

  23. "ID-ing" the Clouds

  24. CHOICES: Cirrus, cirrostratus, cirrocumulus, alto cumulus, altostratus, stratocumulus, stratus, cumulus, nimbostratus, cumulonimbus Stratocumulus Cirrus

  25. CHOICES: Cirrus, cirrostratus, cirrocumulus, alto cumulus, altostratus, stratocumulus, stratus, cumulus, nimbostratus, cumulonimbus Cumulus Cumulo-nimbus

  26. CHOICES: Cirrus, cirrostratus, cirrocumulus, alto cumulus, altostratus, stratocumulus, stratus, cumulus, nimbostratus, cumulonimbus Cirrostratus Altostratus

  27. CHOICES: Cirrus, cirrostratus, cirrocumulus, alto cumulus, altostratus, stratocumulus, stratus, cumulus, nimbostratus, cumulonimbus Cirrocumulus Altocumulus

  28. CHOICES: Cirrus, cirrostratus, cirrocumulus, alto cumulus, altostratus, stratocumulus, stratus, cumulus, nimbostratus, cumulonimbus Stratus www.weatherpictures.nl/ stratus.html Nimbostratus

  29. Sources http://www.ucar.edu/educ_outreach/webweather/cirrus.html http://www.wxdude.com/page9.html http://www.ems.psu.edu/~lno/Meteo437/atlas.html Cloud Pictures www.geografforbundet.dk/ vejret/kikop.htm web.ukonline.co.uk/.../ Cloud%20formations.htm meteonew.free.fr/ nuages/altocumulus.htm www.mmem.spschools.org/. ../altostratus.html

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