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<br />Obstructions to flood flows within the study ro~ch include n~tur~l obstruc- <br />tions such as brush and trees growing in the floodplain and also the State <br />Highway ti6 bridge. During floods these obstructions increase the flooding <br />depths which inundate larger land areas. <br /> <br />Climate <br /> <br />Official Weatber Bureau monitoring stations are maintained near the Towns <br />of Parker, Elbert,andKiowa. These thre<.' stations provide records which are <br />representative of the weather conditions in the Running Creek basin. A compo- <br />site analysis of the available weather data provides the following general <br />climate information. <br /> <br />The climate of the area is slightly cooler and receives more precipitation <br /> <br />than the Denver metropolitan arca. This <br />of th", Running Creek basin. Smllmcr hi~h <br /> <br />is largely due to the higher elevation <br />o <br />tompersturesexceed90 F. anaverage <br /> <br />of 34 days per ye~r. Winter low temperatures drop below freezing an average <br />of 181+ days per year, Muan daily maximu~ temperatures range from 430 F. in <br />January to 370 F. ill July. Strong ",illd~ oCcur f<<'.q""ntly ill tbe willt~' a"d <br />.pring, The.e wind. tend to dry out .oils which are not well supplicd weth <br />moi.ture due to the low annunl precipitation. <br /> <br />The Running Creek basin receives approximately 10 inChes of its 16 inch <br />overage annual precipitation during the April through September period. Summer <br />rainfall is largely from thunderstorm activity which produce. inte"se, loc"l- <br />i~ed stOtms. Floods on streams on the eastern plains arc cauaed primarily by <br /> <br />t\'UllJ"rstO.'m" which yiel" h""vy <<li,.,L,,11 ""'ee sl,,-,,',- p."iu<1s "r Li",~ ",igj, itlt.m.ily). <br /> <br />The National Weather Service has compiled many yellrS of rainfall record. <br />for the eastern plain. atea and has uaed them to develop probabilities of <br />reeeivLng a given depth or Tninfnll in a given time. Table-J on th" following <br />p"g" lists lh""" r"l.:<lionshi"sioe th"RunningCreekbasin. <br /> <br />-14- <br /> <br />TABLEJ <br /> <br />RAINFALL DEPTH FOR VARIOUS STOR.'lDURATIONS <br />AND FREQUENCIES <br /> <br />, <br /> <br />FREQUENCY <br /> <br /> STORM DURATIOY <br />1 HOUR 6 HOURS 24 HOURS <br />1.4" 2.0" 2.4" <br />1.6" 2.2" 2.11" <br />2.2" 3.0" 3.11" <br />2.6" 3.4" 4.2" <br /> <br />5-YEAR <br />IO-YEAR <br />50-YEAR <br />IOO-YEAR <br /> <br />~15~ <br />