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<br />Operating Area storm Data - Project Radar <br />Satellite Pictures - Public Media - TV - 6:25 a.m. <br /> <br />In addition to the FSS and Bureau of Reclamation <br />severe weather warnings are received through the local law <br />enforcement division and public medip. <br /> <br />5.4 Seedability Forecasts - Daily Operating Decisions <br /> <br />Each day seedability forecasts will be prepared by <br />the pvoject 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 <br />seed, no-seed decision. <br /> <br />Normally by 10:00 a.m. (MDT) sufficient data are <br />available to provide an indication of the weather conditions <br />that will affect the project area for the next 24 hours. At <br />this time the seeding plans for the day will be telephoned to <br />aircrews individually or as a group. If seeding operations <br />are expected, the crews will be given details about standby <br />status, seeding strategy, seeding rates and expected duration <br />of the cloud system. If no seeding is expected, crews will be <br />placed on an appropriate standby status subject to recall in <br />the event of unpredicted severe storms. Figure 3 is a flow- <br />chart of events which take place on a typical day. <br /> <br />The initial daily operation decisions are made on <br />the basis of forecast information, satellite data and related <br />upper air soundings. While the data inputs are very useful <br />in working out crew schedules and seeding strategy, they are <br />not the only factors for making final seeding decisions. For <br />working out the final seeding strategy, the Project Director, <br />licensee, will also use real-time observations obtained from <br />the project radar, pilot reports and personal visual observation. <br /> <br />TABLE I <br /> <br />SEEDING CRITERIA <br /> <br />CLOUD CHARACTERISTICS <br /> <br />MODE <br /> <br />SEEDING RATE <br /> <br />Cells 2.5 km or greater rain <br />in depth and growing less <br />than 500 m per minute and <br />a maximum radar reflectivity <br />of less than 45dbz. Cells <br />may be visible by sightings <br />only with no radar reflectivity <br /> <br />treat updraft areas <br />with 3 per.cent <br />solution of AgI at a <br />rate of .126L 3.0 grams <br />per min. or direct inject <br />ion of individual cells <br />with dry ice at a rate <br />of .4536 kg per min. (1 It <br />