Cloud classification symbol CL9. Cumulonimbus, the upper part of which is clearly fibrous (cirriform) often in the form of an anvil; either accompanied or not by cumulonimbus without anvil or fibrous upper part, by cumulus, stratocumulus, stratus or 'scud' (Cumulonimbus cappillatus or incus).
This file was derived from: CL 9.png (http://www.srh.noaa.gov/srh/jetstream/synoptic/sfc_plot_symbols.htm see linked subpages by NOAA)
svg version by Actam