Deep convective clouds with strong updraft – severe convective clouds – often appear light blue in Cloud Phase RGB. The reason is that they typically have small ice crystals on their top, and thick ice clouds covered by small ice crystals appear light blue in Cloud Phase RGB.
Thick fog or low clouds consisting of small droplets appear light green in the Night Microphysics RGB.
Sandy desert appears light blue in the Snow RGB, in some areas with greenish shades. Rocky desert appears medium blue.
Low level water clouds over water surfaces are light bluish, although often hardly recognisable in the Severe Storms RGB images.
