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<br />". <br /> <br />B. Rawinsonde Data <br /> <br />Upper air soundings made at the Muddy Road IV site were <br />processed by use of the on-site computer. Figure 1 is an example <br />of a computer generated Skew-T plot. All soundings made during <br />the Muddy Road IV season were stored on computer disk. <br /> <br />C. Hail Model Plot <br /> <br />The CIC hail mod,el calculations were run on each day there <br />was a potential for convective storms. The model made calcula- <br />tions of vertical velocity, radar reflectivity, and concentration <br />and size of hailstones for seeded and natural storm cells. These <br />models were useful in the assessment of hail potential and in the <br />prediction of the effects of silver iodide seeding on the various <br />size storm cells. An example of hail model plots are shown in <br />Figure 2. <br /> <br />D. Description of Computer Processed Radar Data <br /> <br />The computerized radar provided an on-site capability to <br />acquire, display, and store storm echoes in either the horizontal <br />(PPI), or vertical (RHI) planes. The computer gives the operator <br />the opportunity to select his display map scale, make sector off- <br />sets and enlargements so that "close looks" at the storm cell <br />characteristics can be made. Range corrected echo intensity (dbz) <br />contours can be displayed at selected contour levels. <br /> <br />A unique feature of the system is that previously stored <br />PPI or RHI maps can be instantly recalled for display. This <br />feature is particularly useful to the seeding director in following <br />storm behavior and making timely decisions as to when and where <br /> <br />20 <br />