Clouds The meaning of the words Cumulus stratus

The meaning of the words: • • • Cumulus stratus Cirrus Nimbus Cirr Alto

Cirrocumulus A patch or layer of cloud consisting of tiny individual cloudlets at high-level

Cirrus When you see cirrus you can be sure the air is very dry

Cirrostratus may cover the sky as a continuous sheet with no features, but it

Altocumulus The small, white, puffy clouds that sometimes slowly drift across the sky can

Altostratus • From the ground this altostratus looks white or slightly blue and watery.

Nimbostratus • Nimbus means rain, and stratus means sheet, so nimbostratus is a sheet

Stratocumulus • This cloud is called stratocumulus, meaning sheets of lumpy cloud. Stratocumulus is

Cumulonimbus • It resembles cumulus but towers much higher, with a base at 1,

Cumulus • Puffy white clouds that drift across the sky on a bright summer

Stratus • Stratus clouds are the low clouds. Fog is a stratus cloud at

Cloud Cover Warm front Cold front Cirrus, then lowering to stratus (layer clouds) Towering

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Clouds

The meaning of the words: • • • Cumulus stratus Cirrus Nimbus Cirr Alto heap layer Curl of hair rain High Mid levels

Cirrocumulus A patch or layer of cloud consisting of tiny individual cloudlets at high-level is called cirrocumulus. Like all high-level clouds, cirrocumulus is made of ice crystals.

Cirrus When you see cirrus you can be sure the air is very dry Cirrus can appear at the leading edge of a warm front

Cirrostratus may cover the sky as a continuous sheet with no features, but it often has a fibrous look. The cloud is so thin it is almost transparent

Altocumulus The small, white, puffy clouds that sometimes slowly drift across the sky can look like dozens, of small, loose cotton balls

Altostratus • From the ground this altostratus looks white or slightly blue and watery. It may form a continuous sheet, as in the picture on the left, or look as though it is made from soft fibers.

Nimbostratus • Nimbus means rain, and stratus means sheet, so nimbostratus is a sheet cloud from which rain or snow is falling - usually continuously.

Stratocumulus • This cloud is called stratocumulus, meaning sheets of lumpy cloud. Stratocumulus is grey, white, or a mixture of both, usually with some darker patches.

Cumulonimbus • It resembles cumulus but towers much higher, with a base at 1, 000 -5, 000 ft (3001, 500 m). Rain starts to fall. Inside this very violent cloud, air rises rapidly in the convection cells and sinks between them.

Cumulus • Puffy white clouds that drift across the sky on a bright summer day, like those on the right, are called cumulus

Stratus • Stratus clouds are the low clouds. Fog is a stratus cloud at ground level. They look like a low grey blanket. Stratus clouds bring rain or snow.

Cloud Cover Warm front Cold front Cirrus, then lowering to stratus (layer clouds) Towering cumulonimbus (thunder clouds) Depression Anticyclone Likely to be overcast Trough No cloud or Overcast fair weather cumulus (anticyclonic gloom also possible) weather Ridge Likely to be clear