Cirrus clouds precede a warm front by 12 to 48 hours. Unstable conditions transform friendly cumulus puffs into nasty towering clouds that pose imminent dangerous storms to places in its vicinity. The following tables and illustrations will visualize my points and information. Cloud formation in simple terms. The result of this process can form clouds, fog, or dew.
Fog is just a cloud at ground level.
There must be surfaces on which this water vapor must condense. Condensation nuclei abb. CN must be hygroscopic or water absorbent for added efficiency in cloud formation. The result a fter many droplets form, is the formation of clouds. However it takes about one million cloud droplets to form one raindrop.