Frontal Wedging

Localized convection

A cloud will form when the temperature of the rising air falls below the dew point

cirrus

cirrocumulus

cirrostratus

cumulonimbus

Temperature is the main difference between cirro-/cirrus clouds and alto- clouds. Cirrus clouds are warmer.

Altitude is the main difference between cirro-/cirrus clouds and alto- clouds. Cirrus clouds have a higher altitude.

Altitude is the main difference between cirro-/cirrus clouds and alto- clouds. Cirrus clouds have a lower altitude.

Color is the main difference between cirro-/cirrus clouds and alto- clouds. Cirrus clouds are white and alto clouds are grey.

Nimbostratus

Stratocumulus

Cirrostratus

Altostratus

Cirrostratus

Altocumulus

Stratus

Nimbostratus

Due to volcanic activity.

Due to excessive sunlight.

As air rises along a mountain, a fog forms like a cloud near the mountain slope.​

The meeting of a continental artic air mass with maritime tropical air mass.​