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<br />and Fairplay (see Figure 8). <br />The Kremmling site would be designated as the program's <br />primary atmospheric sounding location. Rawinsonde observations <br />would be initiated routinely twice each day beginning 24 hours in <br />advance of a forecast weather event at the standard National <br />Weather Service's reporting time, ie., at 0000 and 1200 Coordinated <br />Universal Time (CUT). Once the decision is made that condi1:ions <br />are favorable for seeding, rawinsonde observations would be taken <br />at both Kremmling and Fairplay routinely at 0000, 0600, 1200 and <br />1800 CUT until the operation is terminated by the seeding contractor. <br />During a few northwest precipitation situations when special <br />meteorological experiments are being conducted, rawinsonde obser- <br />vations could be made from both Kremmling and Fairplay at three- <br />hour intervals. Since Fairplay is on the leeward side of the <br />Continental Divide for northwest storm situations, the rawinsonde <br />data from this site would provide valuable information for eval- <br />uating downwind effects and for calculating the water balance over <br />this mountain range. <br />During the occasional events when the mid-level flow is <br />expected to be out of a south to southeasterly direction, rawin- <br />sonde observations should be made from Fairplay at six-hour <br />intervals until such time as the flow is no longer from the <br />southeast quadrant. This information would be beneficial in <br />determining the cost-effectiveness of installing a permanent <br />generator network on the east side of the Divide to seed these <br />less frequent but very moist southeast flow situations. <br /> <br />c. Surface Observations - Surface observations that would be <br />required in near real time include wind speed, wind direction and <br />possibly temperature. The National Weather Service (NWS) does <br />have a few observation sites upwind of the proposed target area. <br />These observations can be received in real time over a special <br />hourly basis, 24-hours per day. Aspen reports on an hourly basis <br />only during the hours from 7 AM to 5 PM. Infrequent observations <br />are also received each day from the NWS sites at Hayden, Leadvi1le <br />and Gunnison. These surface observations are not sufficient to <br />provide the detail necessary for this proposed comprehensive <br /> <br />-40- <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />