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<br />. ) ~ , <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />the fact that weather modification operations do not affect the parameters (wind and temperature) <br />included in the NWS's criteria for issuing the warning. <br /> <br />It is therefore NA WC's policy that winter orographic seeding will not be suspended <br />solely upon the issuance of Traveler Advisories, Heavy Snow Wamings, or Winter Storm <br />Wamings. <br /> <br />Concerning Flash Flood Wamings, NA WC will suspend seeding operations upon <br />individual convective systems or areas in which warnings are issued that impact Gunnison <br />County. This action will be taken to avoid any appearance of contributing to damaging weather <br />situations. <br /> <br />On some programs, limits are set on the percent of normal levels of either precipitation or <br />snow water content at Natural Resources Conservation Service mountain Snontel sites, within <br />the target area of the project. Data are available from these sites on a daily basis. If these limits <br />are exceeded, then seeding is suspended until the percent of normal falls under the limit or the <br />project is terminated for the season. This procedure is designed to curtail seeding in above <br />normal snowpack years that may produce high spring and/or summer streamflow. Such a <br />procedure is proposed for the conduct of the Gunnison County Project. SnoteI sites that are <br />representative of the proposed target area will be selected with approval of these sites provided <br />by the Colorado Water Conservation Board. The proposed criteria for suspension will be based <br />upon averages of snow water content from the selected Snotel sites. Seeding will be suspended <br />whenever these averages exceed the following percentages: <br /> <br />. 175 % during the month of December <br />. 160 % during the month of January <br />. 150% during the month of February <br />. 140% during the month of March <br />. 130% during the month of April <br /> <br />It is also recognized that on certain occasion weather events, not previously forecast to <br />have a significant impact on people or property, develop into potentially serious situations. <br />NA WC's policy in these cases will be to monitor all available weather data during storm periods <br />and to suspend operations, whenever in NA WC's judgement, there is a potential for such an <br />event occurring. The sponsors of this project or authorized representatives of the Colorado <br />Department of Natural resources may also request that seeding not be conducted under any <br />special circumstances. <br /> <br />NA WC's Sandy Operation's Center <br /> <br />In order for the project's meteorologist to effectively evaluate current and forecast <br />weather conditions and trends as they affect the project target areas, a complete and <br />comprehensive forecast center is maintained at the Operations Center in Sandy, Utah. This center <br />is equipped with four computers with T-l access to the internet. All necessary NWS forecasts, <br /> <br />12 <br />