Clouds

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Cirrus cloud, high level cloud, indicate fair weather.

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Back 2

Cirrostratus cloud, high level cloud, can bring rain or snow.

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Back 3

Altocumulus, midlevel loud, can bring thunderstorms

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Back 4

Altostratus, midlevel cloud, can warn of thunderstorms or rain.

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Nimbostratus, low-level cloud accompanied by light to moderately falling precipitation.

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Back 6

Stratocumulus, low-level cloud, sometimes accompanied by weak intensity precipitation

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Fair weather cumulus, vertically-developed cloud, can sometimes develop into cumulonimbus clouds and bring rain.

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Cumulonimbus, vertically developed cloud, powerful thunderstorms associated with it

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Contrails, high level clouds, do not warn of weather, because they are produced by jets and planes.

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Billow clouds, happen when the top layer is moving faster than the bottom layer of clouds.

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Mamatus clouds, pouch-like cloud structures, usually show up after the worst of a thunderstorm has passed.

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Orographic clouds, develop in response to the forced lifting of air by earth's topography.

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Pileus cloud, found attatched to either a mountian top or a growing cumulus towerr.