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<br />23 - 2 <br /> <br />'1 <br /> <br />Project Overview <br />The CWCB contracted with the USBR and the NOAA National Severe Storms Lab to refine this product <br />for Colorado's watersheds. The USBR has made available on its precipitation products website the <br />SNODAS snowpack information for 2003-2004 (archived) and 2004-2005 (in near-real time) at <br />htto://www.usbr.gov/pmts/rivers/awards/SNODAS/SNODAS CO hist.html, <br /> <br />. <br /> <br />One of the key components of the Project is the use of a I kilometer (km) grid, which allows for better <br />delineation of snowfields and a spatial analysis of the snowpack depth and snow water equivalent (SWE). <br />This I km grid provides hundreds of data points or mock SNOTEL stations in each watershed. The <br />USBR is comparing the operational SNODAS output to National Resource Conservation Service (NRCS) <br />products to quantify the value added to the latter. <br /> <br />Discussion <br />Steve Hunter (USBR) and CWCB staffwiU present: <br />1) results of modeled snowpack. This wiU include the evolution of the 2004-2005 snowpack and a <br />comparison with the modeled 2003-04 snowpack with a focus on southwestern Colorado. <br />2) a comparison ofthe SNODAS modeled products to the NRCS Snow Survey Products to <br />demonstrate the added value of spatial data, <br />3) plans for future tasks in Phase II and Phase III of this project. Hard copies of the presentation will <br />be provided at the meeting. <br /> <br />Currently, the Flood Protection Program Staff is monitoring SNOTEL sites with high snowpack and SWE <br />for snowmelt flood threat in the Gunnison, Upper Rio Grande, San Miguel, Dolores, Animas, San Juan, <br />Upper Colorado, South Platte, and Arkansas River Basins. We have had meetings with local governments . <br />regarding future state assistance and coordination through the CWCB's Flood Response Program. Listed <br />below are individual SNOTEL stations for which the current SWE (on March 15th, 2005) is at 120% of <br />average or greater. This listing below represents how the Staff has monitored snowpack and snowmelt <br />runoff flood threat in the past, using only SNOTEL information, This year we will use the newly available <br />SNODAS technology and the various Decision Support Systems to improve our monitoring and <br />assessment capabilities. <br /> <br />. <br /> <br />Flood Protection. Water Project Planning and Finance. Stream and Lake Protection <br />Water Supply Protection. Conservation Planning <br />