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<br />Mr. Benz also believes that we need to find a way to anticipate when \ve will see that six-month wet winter. He also <br />would like us to answer the question, "Can we have a multi year E] Nino?" We need to study EI Nino and we need <br />good numbers and decision-making lools and research meteorologists haven't given us those answers yet. <br /> <br />Significant 1100d years were in 1904, 1935, 1965, and 1977. These were on the tail end of]ong drought periods. It <br />could happen in the next year or two. HDR Engineering has been working on the F]ood Study on South Boulder Creek <br />and studying the meteorology of severe storms. lie found that a hurricane in Caribbean came up the eastern spine of <br />the Rockies in September of 1938. In September 1938 a 2.9 inch rain wiped out ;\torrison. EI Dorado Springs got it as <br />wel]. A nine or ten inch stoml in WalerDale (east of Fort Collins) was significant as well. He thinks we should look at <br />the Bill Gray hurricane forecasts that we are going to see this late in the fall. <br /> <br />Frank McNulty stated thaI when we use the lasl 100 years of data perhaps whal we have is not that new. The question <br />is how do we deal with it. co mingle climate with water supply issues, the question is how do we deal wilh the water <br />supply issues. <br /> <br />~'n.cs Snuw SurH~' - ~Iik(' Gillespie <br />The graph shows the May 1'1 snow paek and we had just came out of wel April. The snow pack in lower south central <br />was above nornlal. May was a dry month, 37% of average at SNOTEL sites in the states for that month. The <br />southwest was the driest for that period. June 101 snow pack rapidly began to melt out. llle snow pack is melting out <br />earlier than in 2001 and 2003 but nOI as early as 2002. Reservoir stomge is 85% of average state\vide, the Gunnison is <br />109% of average, Rio Grunde and Arkansas Basins are very low. Southwest basins are 98% of nonna] reservoir <br />storage and that may be from the early snow-melt out. The trend is a slow gradual recovery from drought and il is not <br />a good idea to make a forecast early in the year <br /> <br />Reservoir Storage <br />Junf'I,2004 <br /> <br />("'/ <br />--""" <br />~--~ <br /> <br />Snowpack <br />May " 2004 <br /> <br />~NRCS <br /> <br /> <br /> <br />-- <br />"'"""'...... <br /> <br />'1- <br />, <br /> <br />" <br />. <br />" <br /> <br />,~. <br /> <br />rr..,,~ <br />'~..H <br /> <br />""..<(., .-:1,".-- <br /> <br />-' <br /> <br />.'TS~""'~,",;q! <br />.t)o.,~..,,~_ <br />."O'l:1'l1."A'''~ <br />.lIlIl~"'~'.lrQf <br />.rD.~""A''''"", <br />.~'6","A..."", <br />.'~""'A_~ <br />D'IOI8""""~ <br />~.'i,"e...._..... <br />..................._6,....... <br /> <br />sr__'S...otA".,~ <br />'l~".oILoAY.M <br /> <br />- <br />Statewide: 68% of Av~! <br />Snowpack <br />June '. 2004 <br /> <br />~ NRCS <br /> <br />Streamflow Forecasts <br />June I. 2004 <br /> <br />~NRCS <br /> <br />-- <br />-...... <br /> <br />-.- <br />-- <br />-- <br />..,-~- <br />.,1II.,_......... <br />."...;"'...,..... <br />.1lI-,....~....... <br />.It.""~"""'l* <br />........~.- <br />.._~...... <br />0.....-.. <br />...................- <br />..........--.. <br /> <br />-- <br /> <br />- <br />Statewide: 21"10 of Average <br />6~" of Last Year <br /> <br />."SO""'~'''JgO <br />.1JQ'1~"'A'''' <br />."O.ll'i'1o..A.... <br />.5IlI.Hl......-A.."l'O <br />. '0. H" of A....... <br />.~.II..IlIA._ <br />.'~"of~.... <br />D"<Il~"""'O<l <br />"'"""'.....--... <br />.....................8.......... <br /> <br />3 <br />