WMOD00527

• Title: Quantitative Precipitation Forecasting for Improving Reservoir Operations
• Date: 4/1/1995
• Weather Modification - Doc Type: Report

Table 2. - Selected precipitation gauge sites.
14 SCPP precipitation gauges located within the ARB
Site Name El.(m) Latitude Longitude
S05 Baxter 1187 39012'49" 120046'32"
S06 Blue Canyon 1609 39016'33" 120042'29"
S10 Plavada 1818 39018'54" 120028'35"
Sl1 Sierra Snow Lab. 2087 39019'30" 120022'05"
S20 Onion Creek 2095 39016'47" 120022'43" .,
S21 Castle Valley 2254 39021'03" 120021'13" I
S25 Westville 1663 39011'08" 120036'03"
S26 Sunflower Hill 2091 39009'55" 120027'33"
S27 Talbot 1731 39011'30" 120022'16"
S50 Pine Nut 1771 39004'47" 120033'00"
S59 Loon Lake Reservoir 1957 38059'05" 120019'43"
S64 Big Hill 1860 38050'30" 120024'22"
S84 Donner Grade 1976 39020'09" 120017'26"
S99 Yuba Gap 1760 39018'58" 120036'47"
8 Reclamation/CDWR precipitation gauges located within the ARB
Site Name El.(m) Latitude Longitude
BLU* Blue Canyon 1609 39016'33" 120042'29"
PAC Pacific House 104 38045' 120030'
SUG Sugar Pine 1171 39008' 120045'
GEO Georgetown 991 38055' 120046'
SLY Sly Park 1076 38043' 120034'
GRE** Greek Store 1720 39004'36" 120033'42"
HUY Huysink 2073 39017'00" 120031'36"
FOR Forni Ridge 2317 38048'18" 120012'48"
* Same location as SCPP site S06
** Close to SCPP site S50

Table 3. - Comparison of 12-h precipitation accumulations (mm) from collocated gauges in the
American River Basin (1 mm = 0.039 inch).
Site No. Precip Preci p Preci p Preci p Mean Corr.
ID Cases Tot (mm) Max (mm) Min (mm) Mean (mm) absdiff (r)
S06 125 2591 110.5 0.0 20.73
BLU 125 2695 124.0 0.0 21.56 3.67 0.98
S50 131 2357 99.4 0.0 17.99
GRE 131 2411 104.0 0.0 18.40 3.15 0.97

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