KELINGs (continued) apparently in this swelling cumilus stace we do not yet Have any great rain density, We have nothing but up—draft and in ithe J center and in-drafts on the side, and then, ct the top ~ka must be the case to have continuity of motion ~ we have up-crafte and out-draftea, This presusably varies from case to case, be ta/tpetont type of circulation system. this Now, the next sthge will be a fully developed thunderstorm in which are drew in grepn the column ef rain in the center, and now I have indicated the fact that we do have strong donn-drafts ascociated with the caiumn of rain, If we only consider the rain I think that a tracing through of the history of the particles of air ami clouds which part in this system, that the racioactive mterial msust tak ing have been pushed up and out at the tep and cannot be expected t: bel in the control part of the thunderstorm, However, I have ackne ahead of tire Wexler's contention that there would be a dbwn-< outside of the thunderstora, although J did not imow that] be as strong as he suggested. So, as a result then, therp not be scavenging by this storm, but the result would be it would would mixing through the tropopause, and perhaps a possibility of scavpnging for subsequent storms. Possibly if the downdraft is for this gross transport of the debris downwards outside bf thunderstorm, the mixing would be very considerable, We strong the have te look into it to ese if ft could not account for it cauing all of the way down. Danes! S tae