Basic Cloud Types Cumulus – Puffy, white clouds with flat bottoms Stratus – Form in layers Cirrus – Thin, feathery, white clouds
Cumulus Clouds Formed when warm air rises. Look like piles of cotton balls. Generally indicate fair weather but, when they get larger they produce thunderstorms. Cumulonimbus clouds produce thunderstorms
Cirrus Clouds Form when the wind is strong. Look like thin, feathery white clouds. If they get thicker then they indicate that a change in the weather is coming.
Stratus Clouds Formed from a gentle lifting of a large body of air into the atmosphere. Look like white layers in the sky. Weather can be foggy and/or light to heavy continuous rain. Nimbostratus clouds are dark clouds that produce the rain.
Altitudes Clouds are also classified by the altitude at which they form. – High Begins with prefix cirro- Made up of ice crystals due to cold temperatures. – Middle Begins with the prefix alto- Made up of water drops and ice crystals – Low No prefixes. Made up of water drops.
Cumulus clouds and sandstone rocks. Earthscience World image bank Cumulus Clouds
Cumulus clouds over a plain. Earthscience World image bank
Stratocumulus clouds over Monument Valley in Arizona. Earthscience World image bank
Stratocumulus clouds over Idaho. Earthscience World image bank
Cirrus in long parallel bands GLOBE Cloud Exploration
Cirrus clouds look like white delicate feathers. GLOBE Cloud Exploration