wiieiiee 6. The levels of radiation intensity at the distances of Songe-er and Rongerik were much higher than expected, and sooner *tan expected sisc9e necessary information in this range of yield fcr surfece shots today is <be result of some scaling, up from auch lesser yielcs, interpretation of upper wind field patterns, coupled with forecast changes end experience of ind‘vios with such limited date as IVY-T%E, GREZNHOTSE-D0G, EASY, S2C=S and 7. After seeing BRAVO cloud project pictures (taken from en eirplane) with large quantities of visible particulate matter falling threuge tbe cirrus deck above the camera plane from tropopause and above, <ind data to great heights (i.e. up to at least 100,000 feet) is a must for shot tise since the fall-out problem for surface or near shots of large yields cas te a definite fimction of the mushroom as well as the very hot stem of the cload, CAPT, JS¥ I = Plot of General Fall-cut Pattern. TT - Forecast and Observed Hodographs, B-2 to Bf7 days. , TT = Tabulation of Time of Arrival Data IV - Hodograph Trend Date R Inclosure 6 3 tieheb we Pua