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<br />Figure 4.05 <br />iXAMPLE OF PROBABLE MAXIMUM STORM <br /> <br />, <br />, <br />" <br />I <br /> <br />1. BASIC DATA <br /> <br />a. DA = 19.6 sq. mi. <br />b. Shape factor 81.2 percent (Imperfect fit of isohyetal pattern <br />to basin shape) <br />c. LAT 360 - 30' <br />d. LONG 970 - 40' <br /> <br />e. Index" 26.B" (figure 4.03) <br />f. I ndex wi th shape factor = 21.76" <br /> <br />2. RAINFALL SUMMARY <br /> Duration Total Rainfall Rainfall Duration of <br /> hrs % Index* (21.76x Index) Increment Increment <br /> 6 106 23.06 23.06 6 hr <br /> 12 11B 25.6B 2.62 6 hr <br /> 24 124.5 27.09 1.41 12 hr <br /> 48 134.0 29.15 2.06 24 hr <br /> * From figure 4.04 <br />3. SIX HOUR RAINFAll IN CRITICAL SEQUENCE <br /> HR % 24 HR RF l1RF RF TOTALS <br /> 6 2.07 .04~ <br /> 12 9.67 1:~~ 2.06 <br /> 18 85.12 <br /> 24 3.14 .06 <br /> 30 2.07 .56> <br /> 36 9.67 2~:g~ 27.09 <br /> 42 85.12 <br /> 48 3.14 .85 <br /> 29.15 <br /> <br />4-07 <br />