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Iii <br /> 4 . • 126 <br /> , 'iaosm <br /> •, 13ONYR AMA <br /> / \ 1SCUAIJ 0((A121 <br /> / / / —\ \ " ■ A 1 24 <br /> / / <br /> \y 1 • 3 13 <br /> / / \ 1 C 23 43 <br /> I / \ 1 12 33 142 <br /> I / t 1 1 t 93 246 <br /> I 1 / \D 1 1 t 130 3$$ <br /> Figure 4. 20.--Idealized I I / 1 1 1 c 220 570 <br /> local-storm isonyetal 1 I 1 1 I 1 700 "' <br /> 1 ]•3 997 <br /> pattern. I ' ; i <br /> f I 1 300 1295 <br /> 1 , I I <br /> 1 1 1 I I I <br /> 1 \ / I I <br /> 1 1 ■ / / <br /> 1 / <br /> ■ 1 \ / <br /> 1 \ / <br /> \ / / °amAMC! Mau <br /> ■ / / <br /> 0 3 . • • 1rN <br /> \ / , J . \ 1 <br /> 2 4 • • 10 t2 nw <br /> \ / 1.30■000 <br /> storm period. The sequence of hourly incremental PMP for the Southwest 6-hr <br /> I thunderstorm in accord with this study is presented in column 2 of table <br /> 4.7. A small variation from this sequence is given in Engineering Manual <br /> 1 1110-2-1411 (U. S. Army, Corps Engineers Cor s of 1965) . The latter, listed in <br /> If . column 3 of table 4.7, places greater incremental amounts somewhat more <br /> I toward the end of the 6-hr storm period. In application, the choice of <br /> either of these distributions is left to the user since one may prove to <br /> be more critical in a specific case than the other. <br /> I <br /> Table 4. 7.--Time sequence for hourly incremental PMP in 6-hr storm <br /> !i?SR No. 51 EM1110-2-1411` <br /> Increment Sequence Position <br /> Largest hourly amount Third Fourth <br /> 2nd largest Fourth Third <br /> 3rd largest Second Fifth <br /> 4th largest Fifth Second <br /> 5th largest First ; Last <br /> least Last First <br /> 111 1U. S. Weather Bureau 1947. <br /> !f� 2U. S. Corps of Engineers 1952. <br />