>15k feet
Puffy and higher than 15k feet
cirrocumulus
puffy and mid-level
altocumulus
wispy and higher than 15000 feet
Cirrus
layered and between 6.5k and 15k
altostratus
layered and higher than 15k feet
cirrostratus
fair weather and higher than 15k feet
cirrus
cumulus clouds piled up to 20k feet
cumulus congestus