'Altostratus' means 'high spread out'. Altostratus are a featureless cloud, that can form to a thin cloud with an almost watery appearance to a thick dense gray layer that can block out the sun completely.
Altostratus forms when a large moist air mass slowly lifts into the middle layer of the atmosphere and condenses. This processes occurs usually by an incoming frontal system. Which may result in an extensive cloud deck that can extend thousands of square miles.
bring large amounts of rain, but can bring a light drizzle or light snow. Eventually the Altostratus
builds up to form the Nimbostratus.
(Altostratus symbol)
ALTOCUMULUS(AC)
'Altocumulus' is the Latin word for ' high,heaps'. Altocumulus form varies and is always unique. This cloud can be flat featureless, to a parallel roll cloud. Altocumulus does not usually bring rain, but on some occasions it can produce a light drizzle.
Altocumulus forms when the middle layer of the atmosphere is moist and unstable being lifted.
Consisting of super cooled water droplets or ice crystals (sometimes both)
(Altocumulus's symbol is shown below)
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