These canisters smashed on striking the ground--they did not explode--and incontinently disengaged an enormous volume of heavy, inky vapour, coiling and pour- ing upward in a huge and ebony cumulus cloud
, a gaseous hill that sank and spread itself slowly over the surrounding country.
From his bed he could see the great cumulus clouds
that hung in the blue sky.
A tornado is described as a rapidly rotating column of air that is in contact with both the surface of the Earth and a cumulonimbus cloud or, in rare cases, the base of a cumulus cloud
For a cumulus cloud
to develop vertically into a true thunderstorm, it must also have an unstable atmosphere.
On a recent flight home, we were cruising along at 7000 feet in good weather, except for the occasional encounter with the very top of a cumulus cloud
. Knowing my wife is not a fan of any amount of turbulence, I asked ATC for a climb to 9000.
This, for example, is how Pretor-Pinney introduces the cumulus cloud
Mitra Davar's "Intercession," Masih Alinejad's "A Bloody Day of Ashura," Shahla Zarlaki's "The Bathhouse," and Zohreh Hakimi's "The Wandering Cumulus Cloud
," grouped together in a bloody quartet, compare similarities and contrast motivations for the violence in each.
This warmer influence is presently limited by dry air above it (the anticyclonic fringe) so the resultant Altocumulus cloud band is not so thick, yet still turbulent enough to assist occasional lower-based cumulus cloud
in its convective thrust.
while a fellow pilot reported he saw the plane heading into a huge cumulus cloud
and " it must have been a lightning bolt." Meanwhile, the family is rumoured to be hoping against hope that the plane has been hijacked.
 CUMULUS CLOUD
: A storm cloud forms as rising air cools and water vapor condenses,