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<br />5.0 SEED!NG OPERATIONS <br /> <br />. <br /> <br />The responsibility for day to day seeding decisions <br />rests with the Project Director, He will base his decisions <br />on priority guidelines set by the Policy Board and on meteoro- <br />. logical conditions. The basic meteorological criteria used to <br />initiate or suspend seeding operations are outlined in the <br />following paragraphs. <br /> <br />5.1 Seeding Criteria <br /> <br />The criteria for selecting suitable cloud systems for <br />seeding will be based on an assessment of multiple meteorolo- <br />'. gical parameters, Every weather system will be examined for <br />seeding potential. Seeding will be initiated on the basis of <br />the general criteria listed in Table I. <br /> <br />5,2 Suspension Criteria <br /> <br />Seeding to increase ra1rt will. not be initiated or will <br />be suspended when excessive rain is likely to occur, The <br />Project Director, will take cognizance of the sociological <br />aspects of seeding when severe storms are forecast or already <br />exist, However, hail suppression operations will be conducted <br />when beneficial results appear attainable so long as flying <br />safety is not jeopardized, <br /> <br />Rain augmentation operations will be suspended when <br />soil moisture, as determined by the policy board, is adequate, <br />Also, no seeding will be initiated at times the policy board <br />determines weather modficiation act'livities are not beneficial <br />to a particular community, <br /> <br />In the event there is a threat of damaging floods <br />from excessive rainfall in the project area or area of influence, <br />seeding will not be initiated. If seeding is in progress, it <br />will be suspended by the Project Director, as soon as the <br />hazardous potential becomes known, <br /> <br />5.3 Meteorological Data <br /> <br />Types and sources of meteorological data routinely <br />available at the Operations Center are: <br /> <br />Hourly Observations - FSS, Garden City, Bureau of <br />Reclamation EDN <br />Aviation Terminal Forecasts - FSS, Garden City, Bureau <br />of Reclamation EDN <br />Severe Weather Warnings, FSS, Garden City, Bureau of <br />Reclamation EDN <br />Synoptic Surface & Upper Air Analysis and Related Vert- <br />ical Atmospheric Profiles-Bureau of Reclamation, EDN <br />