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<br />I <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />~l9' :' ", <br />... 'v,(,. <br /> <br />CHAPTER II <br />REVIEW OF HYDROMETEOROLOGICAL STUDIES <br /> <br />Introduction <br /> <br />I <br />i <br /> <br />with particular <br /> <br />In this chapter, we present a critical review of the hydrometeoro- <br /> <br />logical studies conducted by the USBR for the Narrows Project, <br />emphasis on the transposed Montana storm of June 7 to 8, 1964. <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Previous Studies <br /> <br /> <br />There have been many previous hydrometeorological studies conducted <br /> <br /> <br />during the past 25 years for this project. The principal one considered in <br /> <br /> <br />this review is given in the USBR memorandum entitled "Design Storm for Narrows, <br /> <br /> <br />Damsite - Narrows Unit - South Platte Division - Pick-Sloan Missouri Basin <br /> <br /> <br />Program", dated May 23, 1974. At the'request of the USBR, their study was <br /> <br /> <br />reviewed by the Office of Hydrology, National Weather Service; the results of <br /> <br /> <br />their review are given in a memorandum entitled "Review of Design Storm for <br /> <br /> <br />Narrows Damsite, Colorado", or "Hydromet Review", dated October 18, 1974. <br /> <br />Basin Description <br />The following basin description is taken from a USBR memorandum:1/ <br /> <br />"The drainage area above Narrows Damsite is shown in Plate II-l. <br />It encompasses a total of 13,400 square miles with a range in <br />elevation from 4310 feet at the damsite to 14,270 feet on Grays <br />Peak at the Continental Divide about 45 miles west of Denver, <br />Two other peaks exceed 14,250 feet (Mount Evans, 14,264 feet, <br />35 miles west-southwest of Denver, and Longs Peak, 14,255 feet, <br />45 miles northwest of Denver). A total of 21 peaks exceed 12,000 <br />feet, 13 exceed 13,000 feet, and 6 exceed 14,000 feet within the <br />drainage area, <br /> <br />1/ "Design Storm for Narrows Damsite - Narrows Unit - South Platte Division -' <br />Pick-Sloan Missouri Basin Program", memo dated May 23, 1974, from <br />C, E. Everson, Meteorologist to Head, Flood and Sedimentation Section, <br />Division of Planning Coordination, Bureau of Reclamation Engineering and <br />Research Center. <br /> <br />1DA.IiVIIES C. IYIIOOAIE <br />