Cumulonimbus clouds form from cumulus clouds -LRB- namely from cumulus congestus -RRB- and can further develop into a supercell , a severe thunderstorm with special features .

Cumulonimbus clouds form from cumulus clouds -LRB- namely from cumulus congestus cloud -RRB- and can further develop to a supercell , a severe thunderstorm with special features .
