Cloud Height
Cloud Types
High Clouds = Cirrus
Above 18,000 feet
Cirrus
Cirrostratus
Cirrocumulus
Middle Clouds = Alto
6,500 feet to 18,000 feet
Altostratus
Altocumulus
Low Clouds = Stratus
Up to 6,500 feet
Stratus
Stratocumulus
Nimbostratus

Clouds with Vertical Growth
Cumulus
Cumulonimbus
Special Clouds
Mammatus
Lenticular
Fog
Contrails
Contrails
Contrails

Cloud
Cloud
Cirru