Photo by Alfo Medeiros / Pexels
High Clouds (6,000 – 12,000 m)
Cirrus, Cirrocumulus, Cirrostratus — thin, ice crystals
Middle Clouds (2,000 – 6,000 m)
Altocumulus, Altostratus, Nimbostratus — mixed water/ice
Low Clouds (0 – 2,000 m)
Cumulus, Stratocumulus, Stratus — water droplets
Vertical Development (1,500 – 12,000+ m)
Cumulonimbus — towering thunderstorm clouds