CLOUD  TYPES        

Altitude

Structure Type
Layered Clumpy Other
High Cirrostratus Cirrocumulus Cirrus (filamentary)
Middle Level Altostratus Altocumulus -
Low Stratus Nimbostratus   -
Stratocumulus
Vertical Structure
(spans more than one level)
- Cumulus Humilus Cumulus Congestus Cumulonimbus
(lightning, thunder, hail)

Clouds which Produce Precipitation

 

Clouds of Multiple Structural Characteristics

KKnow your root words:  alto = middle level, cirro = high, congestus = crowded, cumulo = clumpy,
            
humilus = humble, nimbo = rain-producing, strato = layered