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6. Areal reduction <br />[fig. 4.9]. <br />8. Incremental P?Q <br />[successive subtraction <br />in step 7]. <br />9. Time sequence of incre- <br />mental PXP according to <br />Table 5-5 <br />Local Storm Worksheet for Opal, Wyoming Storm Maximized and Transposed <br />to the Williams Fork Watershed. The Storm Is Limited to <br />50 m1 Area and Three Hours Duration <br />Table 6.3A. —Local -storm P!Q computation, Colorado River, Great Basin and <br />California drainages. Tor drainage average depth PMp. Go t3 <br />table 6.3B if areal variation is required. <br />Drainage 61-6‘01/ t[.oeree( kroCe {n) f Area mi Omar <br />Latitude 'Longitude Uaimum- Elevation ft (s) <br />Meatn <br />Steps correspond to those in sec. 6.38. <br />1. Average 1 -hr 1-mi (2.6 -km -for <br />drainage [fig. 4.5]. pr«'r <br />2. a. Reduction for elevation. [No adjustment <br />for elevations up to 5,000 feet (1,524 m); <br />52 decrease per 1,000 feet (305 m) above <br />5,000 feat (1,524 m)]. 8 <br />b. Multiply step 1 by step 2a. (..1g in. < ) <br />3. Average 6 /1 -hr ratio for drainage [fig. 4.7]. I. <br />1/4 1/2 3/4 1 2 3 4 5 <br />4. Durational variation <br />for 6 /1 -hr ratio of <br />step 3 [table 4.4]. W jtiL 9S 100 (21 <br />5. 1-0i (2.6 -1m PIO for <br />indicated durations <br />[step 2b Y step 4]. 502. 4.03 <br />4. q4 <br />Duration (hr) <br />41 Sr( SS 41 6.5 4t <br />7. Areal reduced P) <br />[steps 5 X 6]. 2_9 3_1 S_7 q.l f•0 S.(, <br />24 0;c1 o,J 0.4 ) 15 -min. increments <br />Sourly increments <br />[table 4.7]. AIL .. _ __ <br />lour largest 15 -min. <br />increment.a [table 4.8]. 1_4 0.4 0_y 9 _ 4 in. (ir) <br />Table 2 Local Storm Worksheet for Opal storm maximized and transpositioned <br />to the Williams Fork watershed <br />Page 12 <br />4.1 in to <br />2.47 in. 4■) <br />z <br />q.l 6.4 0.6 in. (,ass) <br />