Laserfiche WebLink
<br />thunderstorms which, due to t.he intense .localJ.zeli rain, lead 1;0 high runoff <br />rates and localized flooding. The large triangular area between Castle <br />Rock, Colorado Springs and the forks of I;he Bi.jou Creek south of Byers, has <br />a history of repeated cloudbursts unequaled aJ.oi1iS the f'ront Range. The <br />localization of cloudburst,s in this area is influenced by the orographic <br />effects of the Palmer Divide. Precipitation from these storms has reached <br />levels greater than that produced by tropical c:;clones (Hansen, 1973). <br /> <br />The probable maximum precipitation for the i'1ani tou Springs area is <br />delineated in Table 1. Figure 2 maps data OIl probable maximum preeipitation <br />for the Pikes Peak Region. Rainstorms of 35 or even 17 inches are rare; <br />however, they have occurred. There have been s'overal storms in the Pikes <br />Peak region that have led to extensive nOeding (see Table 2). Storms <br />between the continental divide and the plains al.e causE~d by one of the <br />following situations: cold front, tropical cyclone, complex convective <br />storm, or simple convective storm. Figurl' 3 sho,"" the maximum r'ecorded <br />pl'ecipitation for EI Paso and surrounding counties. Note that Manitou <br />Springs has received seven inches in one storm. Other stor'ms J.n the regior, <br />have dropped as much as 211 inches in a sIngle storm, as recorded in Elbert <br />County. <br /> <br />___________._________n______Rm________.~~._~.~~:~'~_n___H______3'm~_~~__~mu_n~=~ <br /> <br />TABLE 1 <br /> <br />PROBABLE MAXIMUM PRECIPITATION r'Of! '10 SQUARE mLE:S <br /> <br />Area <br /> <br />(; hour s <br /> <br />24 hours <br /> <br />I~2':!.!:!!:~ <br /> <br />Man i tau Spr i ngs <br /> <br />24"26 .inches <br /> <br />32-34 Inches <br /> <br />3Ei-40 inches <br /> <br />Teller/El Paso <br /> <br />18--20 <br /> <br />;,6-27 <br /> <br />28-30 <br /> <br />,-~~_.,-- .__.--_._~--_. <br />Addi tional climatology data may be found i.n Appendix A c,f this report. <br /> <br />_____________________n______R~_______._~*__ft_~~~:~_a___u_.___.~~_.rnma_~ftU_n~=~ <br /> <br />-3- <br />