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<br />10-. 50-, 100- and 250-year cloudburst precipitation to ,the SPS precipita-
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<br />cion were then developed from this 3-hour precipitation frequency curve,
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<br />.The resulting clou ,TI,urst flows are given on Table' IV,
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<br />The 50-yeClr Cln'd IO-yeClr flood events were determined, to be baSically
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<br />sno"melt events. These events for the Yor:lpa River Here modeled after the
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<br />June 1952 flood even~ with the 5- and lO-day volumes adjusted for their
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<br />corresponding frequency. The 1:", 5- and la-day flows 'for the other streams
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<br />were taken from their corresponding frequency curves. This was felt to
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<br />be the correct proccuur: [,~; the f;:l(l~i[!clt freCj,ucncy curves appear to 'be
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<br />well defined belo\" 50 years and the ans"er obtained by more complex methods
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<br />curves were d.~rivl~d frol,l streO.LlS v,.'ith similar characterisitcs. The
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<br />would not differ apprc.ei ~b] y. Those floHs for streams ~1ithout frequency
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<br />resulting Sllo\'":lelt rloh's are biven on Table V.
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<br />Inclosed arc Lhe computer rUns for the general rain SP'F and cloudburst
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<br />SPF. Also inclosed are photogrnphs of the area. Two 'sample ,composite
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<br />frequency curves,..are given on charts 9 and 10. The flo"s taken from the
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<br />various composite frequency curves are given to table VI. An envclcpe
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<br />cu,-vc for clouoburst floods in Colorado is plotted on chart 11.
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