TO o fan - “Lles® advisories on the scheduled detonation for Bv.VO (CLOGAS March) wits ised ca Bef daye to the Chairmen 130, 0/S iray, ad CINCP.CILT, . Pricr to shot tine, weather summaries for B=3 and B-2 days indicated that thi * moet favorable condition for secepted criteria for shot time from s wather/ radsafe point of view we crevailing and was forecast to hold through scheduled shot time. The wind conmdiitions indicated fan-shaped fall-out areas in the northeast and northwest quadrente from GZ. arrangements had been completed with TG 7.3 unite relativw to the t: of search pattern to be performed in the sweepe for the protection fent shiprinc. .s previously deei-mated accordance with this lon, CINCP..CFLT on 20 February advised COMAVFORM.LWN 1S and COMUWSEFTGS to the effoct that shortly before cach C..STLE detonation, CJTF SEVEN would issue messare advisories concerning the antici= pated radiological impact on air and surface routes ami would include recomendations relative to closure of routos, that during the two days preceding each shot, TG 7.3 soarch aircraft would make reconmaissonce flights in the simgificant fall-out quadrant out to 600 NM to clear itinerant shipning from the predicted cloud passese area, and that on the basis of this information,, to implement acticn to divert ships from poseible hazardous arcas and to assist the mission of the TG 7.3 aircraft Kel