Laserfiche WebLink
water year 1983 (another strong EI NirSo Southern Oscillation year), and the spring <br />runoff did not cause significant operational problems. <br />Unregulated inflow into Lake Powell was 15,509 million cubic meters <br />(MCM) (12.573 million acre-feet (MAF-) in water year 1998, approximately 107 <br />percent of average. This inflow resulted in a drop of approximately 926 MCM <br />(0.751 MAF) of storage in Lake Powell. Approximately 300 MCM (0.243 MAF) of <br />storage was lost in upstream reservoirs, approximately 855 MCM (0.693 MAF) was <br />gained in Lower Basin reservoirs, and the total Colorado storage system lost <br />approximately 371 MCM (0.301 MAF) during water year 1998. It is estimated that <br />with average inflow during 1999, the system will remain relatively full. During <br />1998, all deliveries of water to meet obligations pursuant to "The Law of the River" <br />were maintained. <br />Tables 1(a) and 1(b) list the October 1, 1998, reservoir vacant space, live <br />storage, water elevation, percent of capacity, change in storage and change in <br />water elevation during water year 1998. <br />Table 1(a). Reservoir Conditions on October 1, 1998 (Metric Units) <br />Reservoir Vacant Live Water Percent of Change in Change <br /> Space Storage Elevation Capacity Storage' in <br /> Elevatio <br /> n' <br /> (MCM) (MCM) (meters) (percent) (MCM) (meters) <br /> 63 363 1981 85 -44 -1.42 <br />Fontenelle <br />Flaming 355 4,269 1839 92 -170 -1.05 <br />Gorge <br />Blue 146 878 2288 86 -60 -1.74 <br />Mesa <br />Navajo 213 1,879 1851 90 -25 -0.42 <br />Lake 2,802 27,198 1123 91 -926 -1.51 <br />Powell <br />Lake 3,432 30,337 369 90 + 1019 + 1.68 <br />Mead <br />Lake 303 1,929 194 86 -136 -1.25 <br />Mohave <br />Lake 76 687 136 90 -28 -0.37 <br />Havasu <br />Totals 7,391 67,540 -- 90 -370 -- <br />55 <br />