Size Comparison (picture of cloud droplet vs. rain droplet)

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Size Comparison(picture of cloud droplet vs.
rain droplet)
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Cloud TypesRead 27.3
Cloud Types Approximate Altitude of Base
High 20,000 feet
Middle 7,000 20,000 feet
Low Below 7,000 feet
Fog Contact with Ground
Multilevel Enough Said
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Latin Root Translationcumulus heap
stratus layercirrus curl of
hairnimbus rain
Know the Following Latin
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High Clouds(usually made of ice crystals)

• CIRRus
• CIRRocumulus
• CIRRostratus

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Maybe a sign of fair weather or approaching rain.
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Cover the sky. Refract light so you cant see
shadows. Halo around the moon or sun. If thicken
look white, glary and a sign of precipitation.
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Middle Clouds

• ALTOcumulus
• ALTOstratus

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Bigger puffs than cirrocumulus and maybe darker.
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However, clouds on the sides of this image are
_____________.
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Greyish and featureless. Very expansive. Cant
see shadows on the ground. Usually followed by
precipitation.
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Need altostratus
Altostratus
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Low Clouds

• Stratocumulus
• Stratus
• Nimbostratus (rain)

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Mt. Washington (NH) is the tallest mountain in
the NE US. -over 6000
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Rows of rounded masses. Point arm at clouds
size of fist.
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Ill defined edges. Often an overcast deck.
Blanket the sky.
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Multi Layer Clouds

• Cumulus (Usually fair weather)
• CumuloNIMBUS
• (Heavy Precipitation Producers)

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Can span all layers!
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Helpful Web Pages
http//ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/cld/h
ome.rxml http//asd-www.larc.nasa.gov/SCOOL/cldcha
rt.html http//vortex.plymouth.edu/clouds.html
http//atschool.eduweb.co.uk/radgeog/cloudwatch/c
hart/clouds.html