I wandered lonely as a cloud, That floats on high o'er vales

and hills….

Thin wispy high clouds

High, small, puffy and patchy

Tall, fluffy angry looking grey

clouds

Medium height, small puffy clouds,

patchy lines

Thin and uniform

Low, puffy and piled up

Uniform, thin to think layered

clouds, ill-defined

Broad and flat on the bottom, puffy

on top

Cirro- given to high altitude clouds- means

wisp of hair.

Alto- given to mid-altitude clouds- means

high.

Nimbo (prefix) or nimbus (suffix)- is used for clouds that bring rain.

Cumulo- means heap and refer to piles of

clouds.

Stratus- means layer and refers to flat wide

layered clouds.

Flickr user image

Patrick Smith Photograph Front images

pyles94 Cirrus

Man in a bowler hat Cirrocumulus

A guy with a camera Cumulonimbus

Andreas Christen Altocumulus

Nicholas T Altostratus

Nicholas T Cumulus

Imprint Phortography Stratus clouds

Nicholas T Stratocumulus

http://www.es.lancs.ac.uk/hazelrigg/amy/Observation%20Pages/10%20Major%20Cloud%20Types.htm

Cloud diagram

All images are Creative Commons- with except of the cloud diagram- source unknown.