Laserfiche WebLink
<br />Page <br /> <br />5.3. Comparisons with greatest known local-storm rainfalls. 133 <br />5.4. Comparisons with estimates from a previous study . . . 135 <br />5.5. Comparisons with 100-yr return period rainfalls .. . . 135 <br />5.6. Mapped ratios of 100-yr to PMP values over the Western <br />States . . . . . . . . 137 <br />5.7. An alternate approach to PMP 139 <br />5.8. Statistical estimates of PMP 140 <br />5.8.1. Background. 140 <br />5.8.2. Computations. . . . . 141 <br />5.8.3. Discussion . . . . . . 141 <br />5.9. Hypothesized severe tropical cyclone 142 <br />5.9.1. Transposition and adjustment of PMP based on the Yankee- <br />town, Fla. storm of September 5-6, 1950. 143 <br />5.10. Conclusion on PMP checks . 145 <br />6. Procedures for computing PMP . . . . . . 146 <br />6.1. Introduction . . . . . . . . . . . . . 146 <br />6.2. Steps for computing general-storm PMP for a drainage 146 <br />6.3. Steps for computing local-storm PMP. . . . . . . . . 148 <br />Acknowledgements 156 <br />References 157 <br />TABLES <br /> <br />2.1. <br /> <br />2.2. <br /> <br />2.3. <br /> <br />2.4. <br /> <br />2.5. <br /> <br />2.6 <br /> <br />2.7. <br /> <br />3.1. <br /> <br />3.2. <br /> <br />3,3. <br /> <br />Most extreme general-storm convergence rainfalls. <br /> <br />9 <br /> <br />Stations within least-orographic regions for which daily <br />precipitation was available for 20 years or more before <br />1970 . . . . . . . . . . . . . . . . . . . . . . <br /> <br />13 <br /> <br />Seasonal variations of 1000-mh (lOO-kPa) convergence PMP for <br />24 hours, from HMR No. 43 (USWB 1966a) <br /> <br />18 <br /> <br />Stations within <br />precipitation <br />through 1972. <br /> <br />least-orographic regions for which hourly <br />data were available for the period 1948 <br /> <br />38 <br /> <br />Nonsummer storms in the Southwest and the number of stations <br />with relatively large rainfalls in least-orographic regions <br />used in duration analysis of convergence PMP . . . . . . . <br /> <br />39 <br /> <br />Comparison of 6/24-hr ratios in the Northwest and Southwest <br />studies at 420N, 1130W . . . . . . . . <br /> <br />46 <br /> <br />Durational variation of convergence PMP. <br /> <br />50 <br /> <br />Summary of average rain ratios. . <br /> <br />61 <br /> <br />Average rain ratio for 9 selected upslope segments in Arizona <br />(B, D, E, F, G, H, I, J, K in fig. 4.5). . . . . . . . . . <br /> <br />Seasonal variation east of Cascade Ridge in Northwest States <br />as percent of August . . . . . . . . . . . . . . . . <br /> <br />61 <br /> <br />70 <br /> <br />v <br />