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<br />Operating Area Storm Data - Project Radar <br />Satellite pictures - Public Media - TV - 6:25 a.m. <br />11:00 a,m., 4:00 p.m" 9:00 p,m, & 11:00 p,m" all MDT <br /> <br />In addition to the FSS and Bureau of Reclamation severe <br />weather warnings are received through the local law enforcement <br />division and public media. <br /> <br />5.4 Seedability Forecasts - Daily Operating Decisions <br /> <br />Each day seedability forecasts will be prepared by the <br />Project Director, using the information available from the <br />sources shown in paragraph 5,3, The criteria described in <br />paragraphs 5.1 and 5,2 will serve as a guide in making the seed, <br />no-seed decision. <br /> <br />Normally by 10:30 a,m. (MDT) sufficient data are <br />available to give a good indication of the weather conditions <br />that will affect the project area for the ensuing 24 hours, At <br />this time the seeding plans for the day will be issued to air <br />crews via individual or group conference calls. If seedable <br />conditions are expected, the crews will be given details about <br />standby status, seeding strategy, seeding rates and expected <br />duration of the cloud system, If no seedable clouds are ex- <br />pected, the crews will be placed on appropriate standby status <br />for recall in the event unpredicted storms threaten the project <br />area. Figure 3 is a flow~chart of events which take place on a <br />typical day, <br /> <br />The initial daily operation decisions are made on <br />the basis of forecast information and related upper air sound- <br />ings, While the data inputs are very useful in working out crew <br />schedules and seeding strategy, they are not the only factors <br />for making final seeding decisions, For working out the final <br />seeding strategy, the Project Director, licensee, will also <br />use real-time observations obtained from the project radar and <br />pilot'reports. <br /> <br />TABLE I <br /> <br />SEEDING CRITERIA <br /> <br />CLOUD CHARACTERISTICS MODE <br /> <br />SEEDING RATE <br /> <br />Cells 2,5 km or greater rain <br />in depth and growing less <br />than 300 m per minute and <br />a radar reflectivity of <br />less than 30dbz. Cells may <br />bevisible by sightings only <br />'with no radar reflectivity <br /> <br />treat updraft areas <br />with 3 per cent <br />solution of AgI at a <br />rate of .126L per min. <br />or direct injection of <br />individual cells with <br />dry ice at a rate of <br />,4536 kg per min. <br />