These spiral rain bands ascend in decks of cumulus and cumulonimbus clouds to the high upper atmosphere, where condensing water vapor is swept off as ice-crystal wisps of cirrus clouds by high-altitude winds.
(These spiral rain bands; ascend; in decks of cumulus and cumulonimbus clouds) (condensing water vapor; is swept off; as ice-crystal wisps of cirrus clouds; by high-altitude winds; L:the high upper atmosphere)
These spiral rain bands condensing water vapor
ascend is swept off
in decks of cumulus and cumulonimbus clouds
as ice-crystal wisps of cirrus clouds by high-altitude winds L:the high upper atmosphere