Laserfiche WebLink
<br />1\(14056 <br />.J,.;.. v': <br /> <br />COLORADO <br />WATER SUPPLY CONDITIONS UPDATE <br /> <br />'. <br /> <br />.. <br /> <br />FROM THE OFFICE OF THE STATE ENGINEER: COLORADO DIVISION OF WATER RESOURCES <br />ROOM 818,1313 SHERMAN ST., DENVER. CO 80203 <br />303.866.3581; www.water.state.co.us <br /> <br />December 1, 2001 <br /> <br />This month begins the winter Surface Water Supply Index (SWSI) calculation. In the winter, the SWSI calculation <br />takes into account the regional snowpack in replacement of stream flows. The SWSllndex was below normal in all <br />divisions across the state during November. Reservoir index factors and snowpack factors were both below normal <br />averages for this time of the year. The snowpack ranged from 44% of average in the Rio Grande Basin to 79% of <br />average in the Gunnison Basin. <br /> <br />The Surface Water Supply Index (SWSI) developed by this office and the U.S.D.A. Natural Resources <br />Conservation Service is used as an indicator of mountain-based water supply conditions in the major river basins of the <br />state. It is based on snowpack, reservoir storage, and precipitation for the winter period (November through April). <br />During the winter period, snowpack is the primary component in all basins except the South Platte basin where reservoir <br />storage is given the most weight. The following SWSI values were computed for each of the seven major basins for <br />December 1, 2001, and reflect the conditions during the month of November. <br /> <br /> <br />i <br />: <br />) <br /> <br />, <br />,,) <br /> <br /> <br />:? <br />