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<br />Mr. Vander Horst reported streamflows were better than nonnal this water year due to the <br />snowpack received in the south and southwest corner of the state; however streamflows in general <br />have been below nonnal since June. The Gunnison Basin has had high stream flows, and is the <br />only one to have above nonnal flows in August. The Gunnison River flows are now running below <br />nonnal despite the SWSI levels. The Colorado Basin flows are at 66% of normal; the Yampa White <br />River is at 69% of nonnal for August and the Rio Grand is below nonnal. The San Juan Basin in <br />the southwest corner of the state has had high levels for this water year, and the flows are running at <br />99% of nonnal the end of summer but dropping now and the reservoir storage is good. <br /> <br />Colorado Water Supply Report <br /> <br />---The following is a brief water supply conditions update. (A complete supply update was <br />distributed at the meeting and appears on the CWCB webpage at www.cwcb.state.co.us) <br /> <br />South Platte Basin <br />SWSI value (+2.5) indicates that for August the basin water supplies were above nonnal. Reservoir <br />storage was 110% of nonnal at of the end of August. Storage levels in the major plains reservoirs: <br />Julesburg, North Sterling, and Prewitt are at 42% of capacity. Cumulative storage in the major <br />upper-basin reservoirs of Cheesman, Eleven Mile, Spinney, and Antero is at 89% of capacity. <br /> <br />Arkansas Basin <br />SWSI value (-1.0) indicates that basin water supplies were slightly below nonnal for August. <br />Stream flows at the gaging station near Portland were 582 cfs, as compared to the long-term average <br />of 954 cfs. Storage in Turquoise, Twin Lakes, Pueblo, and John Martin reservoirs totaled 71 % of <br />nonnal at the end of August. <br /> <br />Rio Grande Basin <br />SWSI value (-0.7) indicates that basin water supplies were near nonnal for August. At the end of <br />August storage in Platoro, Rio Grande, and Santa Maria reservoirs totaled 101 % of nonnal. <br />Precipitation in Alamosa was 1.59 inches, 0.40 inches above normal. The average monthly <br />temperature in Alamosa was 62.3 degrees, 0.2 degrees above normal. <br /> <br />Gunnison Basin <br />The SWSI value (-1.1) indicates that for August basin water supplies were slightly below nonnal. <br />Streamflows at the gaging station at Uncompahgre River near Ridgeway were 173 cfs, as compared <br />to the long-tenn average of 164 cfs. Storage in Taylor Park, Crawford, and Fruitland reservoirs <br />totaled 93% of nonnal as of the end of August. <br /> <br />Colorado Basin <br />The SWSI value (+0.1) indicates that August basin water supplies were near nonnal. Flow at the <br />gaging station near Dotsero was 1,188 cfs, as compared to the long-term average of 1,796 cfs. <br />Storage in Green Mountain, Ruedi, and Williams Fork reservoirs totaled 111 % of average at the end <br />of August. <br /> <br />Yampa/White Basin <br />The SWSI value (-0.4) indicates that water supplies were near nonnal for the end of August. <br />Stream flows at the gaging station at Yampa River at Steamboat were 107 cfs, as compared to the <br />average of 152 cfs. Precipitation was 83% of average for August and 94% of average for the water <br />year. <br />