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<br />Colorado Climate Center. CSU <br />. Nolan Doesken presentations are posted at htto://ccc.atmos.colostate.edu. <br />. The PRISM map to the right shows areas of higher precipitation in March 2008 in Colorado in blues and <br />greens and the drier Colorado are red and orange. <br />. We have had a recent tendency towards warm Marches in Colorado. A graph of the history of Aprils in <br />Colorado since 1900 shows that it's a cool month until last two days. <br />. In 1983-84 we had big snowpacks and big streamflows and we were cool in the spring. <br />. Nolan showed many climate stations around the state <br />that were tracking near average: There has been <br />generous precipitation in the mountains and its been <br />short in the eastern plains. Grand Lake, Grand <br />Junction, Collbran, Montrose, Akron, Boulder, and <br />Kassler. Pueblo is below average. In Akron this is a <br />critical time when spring moisture should arrive <br />. CoCoRAHS is rain and snow measurement gages <br />reported from a volunteer network and the graph <br />below is by county. There are 30 states participating <br />and Colorado has the highest participation with about <br />9,000 total observers reporting 600 - 800 <br />observations a day. <br />. In summary snowmelt flooding required good spring precipitation and then turn the heat on in May and <br />leave the heat on. <br />. National drought monitor shows a low level of <br />drought in southeast Colorado. <br />. There was a discussion about the sixty <br />weather stations around the state developed by <br />Colorado State University called CoAgMet. <br />This data helps determine how weather <br />affects demand side for water from lower <br />elevations. Its been a loose knit collaboration <br />and we are hoping to get this program onto a <br />solid foundation to monitor evapo- <br />transpiration. More audiences, North Platte <br />and yampa-white to get some sort or weather <br />monitoring program. <br /> <br />- 2 - <br /> <br />ID 10 <br />.<: <br />o <br />" <br />:=. 8 <br /> <br />" <br />o <br />~ 6 <br />"a. <br />"0 <br />e 4 <br />a. <br /> <br /> <br />CoCoRAHS Accumulated Precipitation for Selected <br />Counties: October 1, 2007 through April 14, 2008 <br /> <br />14 <br /> <br /> <br />12 <br /> <br />-Weld County <br />-Summit County <br />La Plata County <br />-Baca County <br />-Otero County <br />Logan County <br />-Jefferson County <br /> <br />2 <br /> <br />o <br /> <br />~ <br />Q <br />~ <br />~ <br /> <br />~ <br />Q <br />1'; <br />~ <br /> <br />~ <br />Q <br />~ <br />~ <br /> <br />~ <br />Q <br />~ <br />~ <br /> <br />~ <br />Q <br />Q <br />N <br />~ <br /> <br />~ <br />Q <br />Q <br />N <br />~ <br /> <br />~ <br />Q <br />Q <br />N <br />~ <br /> <br />~ <br />Q <br />Q <br />N <br />~ <br />~ <br /> <br />NRCS Snow Survev Pro2:ram <br />. Mike Gillespie- NRCS report. October was average, November warm and dry, December heavy snow <br />storms in southern mountains January increased snowpack percentages in all basins, February continued <br />above average snowfall. <br />o Yampa/White River Basin - 107% snowpack of average at northwest corner. This basin has <br />only above average twice in a decade. Reservoir storage is 96% of average, 85% of last year and <br />72% of total capacity. <br />o Colorado River Basin -This upper Roaring Fork is the basin with the highest totals. The <br />snowpack is 123 % of average, the reservoir storage is 100% of average, 96% oflast year, and <br />61 % of capacity. <br /> <br />Flood Protection. Water Project Planning and Finance. Stream and Lake Protection <br />Water Supply Protection. Conservation Planning <br />