By Machaela Freeman

Wispy, feathery clouds; indicate fair weather

2 & 6 km, medium-level; indicate precipitation

2 & 6 km, medium-level; indicate precipitation

look like cotton, indicate fair weather

towering, flat tops; produce thunderstorms

cotton balls; indicate storm on its way

flat layers, dull gray; produce drizzle

flat layers, as thicken produce drizzle, rain, or snow

form near the ground; forms after a humid day